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HomeMy WebLinkAboutBid Set Vol 2 CFG-•13.0 12. PROJECT MANUAL OF CONSTRUCTION DOCUMENTS • MEADOW CREST PLAYGROUND Renton School District No. 403 7812 South 124th Street Nil Seattle, Washington 98178 Ph: (425) 204-4403 Fx: (425) 204-4476 Vera Risdon Secretary of the Board of Directors O. BID SET VOLUME 2 April 2, 2013 s SET NO. PROJECT MANUAL OF CONSTRUCTION DOCUMENTS MEADOW CREST PLAYGROUND BID SET VOLUME 2 April 2, 2013 architects MEADOW CREST PLAYGROUND SECTION 000110 PROJECT NO. 11.12.116 TABLE OF CONTENTS COVER SHEET 1 FRONTISPIECE 1 DIVISION 00 PROCUREMENT REQUIREMENTS 000001 INVITATION TO BID 3 000100 INSTRUCTIONS TO BIDDERS 19 000110 TABLE OF CONTENTS 5 000115 LIST OF DRAWING SHEETS 2 000200 BID FORM PARTS 1 AND 2 17 -ATTACHMENT NO. 1 -CONTRACTOR'S PROPOSAL BOND raY _ -ATTACHMENT NO. 2-NONCOLLUSION AFFIDAVIT -ATTACHMENT NO. 3 -CONTRACTOR'QUALIFICATION FORM -ATTACHMENT NO.4- SUBCONTRACTOR'S LIST 000300 STANDARD FORM OF AGREEMENT BETWEEN OWNER AND CONTRACTOR(AIA A101-2007) 11 ma 000510 CONTRACTORS BOND 1 000515 BIDDERS CHECKLIST 1 000520 ESCROW AGREEMENT 3 arr - 000525 PREVAILING WAGE RATES 1 000526 JOURNEYMAN PREVAILING WAGE RATES (incl Prevailing Wage Rates) 19 000700 GENERAL CONDITIONS OF THE CONTRACT FOR CONSTRUCTION (AIA A201-2007) 80 - SPECIAL CONDITIONS OF THE CONTRACT FOR CONSTRUCTION 000730 SUPPLEMENTARY CONDITIONS 3 001026 RETAINED PERCENTAGE y SUBCONTRACTOR'S REPRESENTATIONS 3 003119 EXISTING CONDITION INFORMATION 1 003132 GEOTECHNICAL DATA 70 -SUBSURFACE EXPLORATION, PRELIMINARY GEOTECHNICAL AND INFILTRATION FEASABILITY REPORT imt - SUMMARY OF ADDITIONAL BORINGS IN PLANNED PLAYGROUND AREA - SUMMARY OF ADDITIONAL BORINGS TO DELINEATE EXISTING FILL aw DIVISION 01 GENERAL REQUIREMENTS 011000 SUMMARY OF WORK 10 012300 ALTERNATES 3 012500 PRODUCT SUBSTITUTION &OPTIONS 2 012500A PRODUCT SUBSTITUTION REQUEST FORM 1 012600 CHANGE PROCEDURES 12 - REQUEST FOR INFORMATION -ORDER FOR A MINOR CHANGE IN THE WORK -CHANGE ORDER -CHANGE ORDER PROPOSAL BLRB ARCHITECTS 04/02/13 TACOMA, WASHINGTON PAGE: 000110- 1 MEADOW CREST PLAYGROUND SECTION 000110 PROJECT NO. 11.12.116 TABLE OF CONTENTS DIVISION 01 GENERAL REQUIREMENTS (Cont'd) -CONSTRUCTIVE CHANGE DIRECTIVE -COST PROPOSAL SUMMARY FORM A-GENERAL CONTRACTOR -COST PROPOSAL SUMMARY FORM B- SUBCONTRACTOR/SUPPLIER 012900 PAYMENT PROCEDURES 8 aft -RETAINED PERCENTAGE ON PUBLIC WORKS CONTRACT - SUBCONTRACTOR'S REPRESENTATIONS sir - SUMMARY OF ENTITIES REQUESTING PAYMENT 012973 SCHEDULE OF VALUES 3 013119 PROJECT MEETINGS 4 013200 CONSTRUCTION PROGRESS DOCUMENTATION 9 -CONSTRUCTION PROGRESS SCHEDULE CHECKLIST 013233 PHOTOGRAPHIC DOCUMENTATION 2 013300 SUBMITTALS, SHOP DRAWINGS, PRODUCT DATA&SAMPLES 9 014000 QUALITY REQUIREMENTS 9 +moo 014200 REFERENCES 40 - KEY NOTE SCHEDULE sir 014500 CONTRACTOR'S QUALITY CONTROL SYSTEM 11 -CONTRACTOR'S DAILY REPORT -NOTICE OF NONCOMPLIANCE Irr 015000 TEMPORARY FACILITIES AND CONTROLS 9 016000 PRODUCT REQUIREMENTS 5 017300 EXECUTION 8 017329 CUTTING AND PATCHING 5 017700 CONTRACT CLOSEOUT 7 rri - SUBSTANTIAL COMPLETION CHECKLIST - FINAL COMPLETION CHECKLIST amo 017823 OPERATION AND MAINTENANCE DATA 4 017836 WARRANTY PROCEDURES 6 -CONTRACTOR'S WARRANTY se -SUBCONTRACTOR'S WARRANTY 017839 PROJECT RECORD DOCUMENTS 3 017900 DEMONSTRATION AND TRAINING 4 4.1 DIVISION 02 EXISTING CONDITIONS (NOT USED) Mr DIVISION 03 CONCRETE 033000 CAST-IN-PLACE CONCRETE 20 BLRB ARCHITECTS 04/02/13 TACOMA, WASHINGTON PAGE: 000110-2 0 ., MEADOW CREST PLAYGROUND SECTION 000110 PROJECT NO. 11.12.116 TABLE OF CONTENTS DIVISION 04 MASONRY 042000 UNIT MASONRY 21 gar DIVISION 05 METALS 051200 STRUCTURAL STEEL FRAMING 1 addil 053100 STEEL DECKING 5 055000 METAL FABRICATIONS 17 kas DIVISION 06 NOT USED DIVISION 07 THERMAL AND MOISTURE PROTECTION 071113 BITUMINOUS DAMPPROOFING 4 071900 WATER REPELLENTS 6 075419 POLYVINYL—CHLORIDE(PVC) ROOFING I I rr 076200 SHEET METAL FLASHING AND TRIM 11 079200 JOINT SEALANTS 6 taa DIVISION 08 OPENINGS 081 113 HOLLOW METAL DOORS AND FRAMES 9 wrr 084113 ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS 11 087100 FINISH HARDWARE 11 DIVISION 09 FINISHES 099600 HIGH PERFORMANCE COATINGS 7 099623 GRAFFITI-RESISTANT COATINGS 6 DIVISION 10 SPECIALTIES ma 101423 PANEL SIGNAGE 9 102800 TOILET BATH AND LAUNDRY ACCESSORIES 6 are DIVISION 11 EQUIPMENT(NOT USED) DIVISION 12 FURNISHINGS r 129300 SITE FURNISHINGS 3 DIVISION 13 SPECIAL CONSTRUCTION (NOT USED) nr DIVISION 20 MECHANICAL SPECIFICATIONS 200000 GENERAL MECHANICAL REQUIREMENTS 13 DIVISION 21 FIRE SUPPRESSION SPECIFICATIONS (NOT USED) tai BLRB ARCHITECTS 04/02/13 TACOMA, WASHINGTON PAGE: 000110-3 vas MEADOW CREST PLAYGROUND SECTION 000110 PROJECT NO. 11.12.116 TABLE OF CONTENTS DIVISION 22 PLUMBING SPECIFICATIONS 220523 VALVES FOR PLUMBING PIPING 2 220529 HANGERS AND SUPPORTS FOR PLUMBING EQUIPMENT 6 220719 PIPING INSULATIONS 6 221 116 DOMESTIC WATER PIPE AND FITTINGS 3 rr 221300 SOIL, WASTE,&VENT PIPING SYSTEM 3 224000 PLUMBING FIXTURES 7 Oil DIVISION 23 HEATING, VENTILATING,AND AIR CONDITIONING SPECIFICATIONS 230529 HANGERS AND SUPPORTS FOR HVAC PIPING& EQUIPMENT 6 rro 233113 STEEL DUCTWORK 9 233423 EXHAUST FANS 2 rir DIVISION 26 ELECTRICAL SPECIFICATIONS 260000 ELECTRICAL GENERAL CONDITIONS 16 260010 EXCAVATION AND BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIES 5 260519 WIRES AND CABLES 4 260526 GROUNDING 2 260532 OUTLET AND PULL BOXES 4 260533 RACEWAY 4 262416 PANELBOARDS 4 262419 MOTOR CONTROLLERS 4 262726 SWITCHES AND RECEPTACLES 4 265000 LIGHTING 8 rrr DIVISION 27 COMMUNICATION SPECIFICATIONS DIVISION 28 SAFETY AND SECURITY SPECIFICATIONS Nor DIVISION 31 EARTHWORK 311000 SITE CLEARING AND SITE DEMOLITION 8 312000 EARTH MOVING 19 312513 EROSION CONTROL 245 sir DIVISION 32 EXTERIOR IMPROVEMENTS 320190 TREE PROTECTION 8 321313 CONCRETE PAVING 12 rii 321540 CRUSHED ROCK PAVING 6 321816 PLAY PAD PAVEMENT MARKING 3 rri 321819 SYNTHETIC TURF 6 321822 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF 5 BLRB ARCHITECTS 04/02/13 TACOMA, WASHINGTON PAGE: 000110-4 MEADOW CREST PLAYGROUND SECTION 000110 PROJECT NO. 11.12.116 TABLE OF CONTENTS DIVISION 32 EXTERIOR IMPROVEMENTS (Cont'd) 321840 POURED IN PLACE RESILIENT MATTING 5 323119 CHAINLINK FENCE 6 328000 IRRIGATION 13 329113 SOD LAWN 5 329250 SOIL PREPARATION 5 329550 PLAYGROUND EQUIPMENT 7 329551 CATERPILLAR PLAYGROUND SCULPTURE 2 329552 CLIMBING WALL PLAYGROUND SCULPTURE 2 DIVISION 33 UTILITIES 331100 FACILITY WATER DISTRIBUTION PIPING 11 333000 FACILITY SANITARY SEWERS 7 334100 STORM UTILITY DRAINAGE PIPING 9 334600 SUBDRAINAGE 4 to wr taw err r air wor BLRB ARCHITECTS 04/02/13 TACOMA, WASHINGTON PAGE: 000110-5 +wr r MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 4111 PART 1 - GENERAL 1_1 GENERAL 1.1.1 Includes, but not limited to, furnishing labor, materials, and equipment for completion of work unless indicated or noted otherwise. See Division 01 for sequence of work. 1.1.2 All work included in Division 21, 22, and 23 shall be the responsibility of a single Mechanical �r. Subcontractor. 1.1.3 Furnish exact location of electrical connections and complete information on motor controls to Division 26. 1.1.4 Putting heating and exhaust systems into full operation and continuing their operation during each working day of testing and balancing. to 1.1.5 Making changes in pulleys, belts, and dampers or adding dampers as required for correct balance at no additional cost to Owner. All equipment shall be provided with a single point electrical connection, unless otherwise indicated. 1.1.6 The drawings and specifications are complementary and what is called for in either is binding as if called for in both. 1.1.7 The ductwork and accessibility to HVAC equipment shall take precedence over all other equipment in the ceiling interstitial spaces or other mechanical areas including, but not limited to, sprinkler piping,heating piping, domestic water piping and electrical conduit. 1.2 ELECTRICAL 1.2.1 All electrical work, conduit, boxes and devices in connection with control wiring as required to install the control equipment as specified herein or shown on the drawings shall be furnished and installed complete by the Division 23 Contractor. 1.2.2 All electrical work performed under this Section of the Specifications shall conform to all ""m applicable portions of the Division 26 specifications and shall conform to all governing codes. 1.2.3 All equipment shall be factory wired to a junction box for connection to electrical service. 1.2.4 Where a piece of equipment specified includes an electric motor,the motor shall be furnished and mounted by this Contractor. Motor starter, disconnect switches and wiring from the electrical panel to the motor control devices and to the motor shall be provided by the Division 26 Contractor unless stated otherwise in the mechanical specification and on the mechanical equipment schedule. Ole BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000- 1 4 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1_3 RELATED SECTIONS rw 1.3.1 General and Supplementary Conditions and Division 01 apply to this Section. WO 1.4 SYSTEMS DESCRIPTION 1.4.1 Site Inspection: -I 1.4.1.1 Examine premises and understand the conditions which may affect performance of work of this Division before submitting proposals for this work. 1.4.1.2 No subsequent allowance for time or money will be considered for any consequence related to failure to examine site conditions. 1.4.2 Drawings: 1.4.2.1 Mechanical drawings show general arrangement of piping, ductwork, equipment, etc. Follow as closely as actual building construction and work of other trades will permit. 1.4.2.2 Consider architectural, structural and electrical drawings part of this work in so far as these drawings furnish information relating to design and construction of building. Architectural drawings , take precedence over mechanical drawings. 1.4.2.3 Because of small scale of mechanical drawings, it is not possible to indicate all offsets, fittings, and accessories which may be required. Investigate structural and finish conditions affecting this work and arrange work accordingly, providing such fittings, valves, and accessories required to meet conditions. 1.5 SUBMITTALS 1.5.1 All material used on the project shall be new and free of defects. The Architect and/or Engineer reserves the right to reject any material, the appearance of which has been damaged on the site or in shipment. The material shall be of pre-approved equal quality to that which is specified. Should the make and type of material differ from that specified,the Contractor may be required to submit catalog and engineering data(samples if requested) necessary to make a comparison and determine its suitability. The Contractor shall also bear the cost of all changes to any aspect of the project (electrical, mechanical, building, etc.)made necessary by any approved substitutions. Approved substitutions include those listed as approved manufacturers or approved substitutions. Tentative approval of substitute material and equipment will be made prior to bid only. Such request for approval shall be made two weeks in advance of the bid opening to allow time to assess its suitability. Failure to obtain approval prior to bid shall iiis require the successful bidder to furnish materials and equipment only as specified herein (see paragraph 2.01,this specification). BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000-2 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1.5.2 The Contractor shall submit to the Architect, for approval, complete information on all equipment and materials to be provided on the project. Provide copies as specified by Division 01 and at a minimum provide six (6) copies of the manufacturer's catalog and engineering data, shop drawings of shop fabricated equipment and instruction data for each item included under this Section of the Specifications. Submittals shall be presented to the Architect within 30 calendar days from the date of the Contract signing in complete indexed and bound sets. Submitting portions of the submittals will not be accepted. The Contractor shall submit a typed, signed list including all items to be furnished on the project. The signature on the aforementioned list shall indicate that the Contractor has examined the suitability of all material and equipment with respect to compliance with these specifications. The Contractor's approval shall also indicate that physical dimensions of the equipment have been verified with the installation requirements and were found to cause no interference therewith. 1.5.3 Review of submittal data by the Engineer or Architect does not relieve the Contractor of responsibility for quantities,measurements, and compliance with the intent of all contract documents. 1.5.4 Furnish submittals in a hard-back, three-ring binder. The binder shall have tabs which are indexed with a Table of Contents. The Table of Contents shall correlate an index number for each individual specification number. If the equipment submittal is not bound to the Engineer's satisfaction, it may be rejected. 1.5.5 Furnish submittals generally according to the list below. Individual sections may contain more specific submittal listing of the particular section labeled "Submittal Requirements." Furnish on each particular section and the following equipment: MIS 1.5.5.1 Pipe 1.5.5.2 Pipe Insulation 1.5.5.3 Plumbing Fixtures 1.5.5.4 Valves 1.5.5.5 Pipe Hangers arw 1.5.5.6 Piping Specialties 1.5.5.7 HVAC Equipment 1.5.6 Any material found to be installed without prior approval will be required to be removed and replaced with only specified material at Contractor's cost. 1.5.7 Mechanical Drawings for the project have been developed by the Engineer using AutoCADTM These drawing files will be made available to the General Contractor for development of shop drawings and/or"As-Builts". BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000—3 ar MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1.6 SUBMITTALS REQUIREMENTS OF THIS SECTION ilk 1.6.1 Include the manufacturer's recommended installation and start-up procedures with associated checklists for each unique piece of equipment under a separate tab titled "Installation/Startup". These procedures and forms shall be for the specific piece of equipment to be provided. ma 1.6.1.1 Access doors. 1.6.2 The Contractor is responsible for providing the Commissioning Authority with copies of the following information for inclusion in the Systems Manual. The Commissioning Authority will compile the final Systems Manual based on the contractor submitted documentation along with additional material provided by the Commissioning Authority. rr 1.6.2.1 As-built documents as 1.6.2.2 Description of systems, including capabilities and limitations 1.6.2.3 Operating procedures for all normal, abnormal, and emergency modes of operation U 1.6.2.4 Maintenance procedures U 1.7 OPERATION AND MAINTENANCE MANUAL FOR MECHANICAL SYSTEMS 1.7.1 Bind Operation & Maintenance Manual for Mechanical Systems in three-ring, hard-backed up binder with clear plastic pocket on spine. Spine of each binder shall have following typewritten lettering inserted: OPERATION AND MAINTENANCE MANUAL FOR MECHANICAL SYSTEMS "o' 1.7.2 Provide master index at beginning of Manual showing items included. Use plastic tab indexes for Sections of Manual. 1.7.3 First Section shall consist of name, address, and phone number of Architect, General Contractor, and Mechanical, Plumbing, Sheet Metal, Refrigeration, Temperature control, and Electrical Subcontractors. Also include complete list of equipment installed with name, address, and phone number U of each vendor. 1.7.4 Provide Section for each type of item of equipment. 1.7.5 Submit copies as specified by Division 01 and at a minimum provide three (3) copies of Operation& Maintenance Manual to Architect for his approval. U 1.7.6 Include descriptive literature (Manufacturer's catalog data) of each manufactured item. Literature shall show capacities and size of equipment used and be marked indicating each specific item with applicable data underlined. BLRB ARCHITECTS 04/02/13 r� BCE ENGINEERS, INC. PAGE: 200000-4 U MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1.7.7 Include all warranties/guarantees including extended warranties. 1.7.8 Operating Instructions shall include: 1.7.8.1 General description of each mechanical system. 1.7.8.2 Step-by-step procedure to follow in putting each piece of mechanical equipment into operation. ism 1.7.9 Maintenance Instructions shall include: 1.7.9.1 Manufacturer's maintenance instructions for each piece of mechanical equipment installed in Project. Instructions shall include name of vendor, installation instructions,parts numbers and lists operation instructions of equipment, and maintenance and lubrication instructions. 1_8 QUALITY ASSURANCE 1.8.1 Requirements of Regulatory Agencies: 1.8.1.1 Perform work in accordance with applicable Codes. w 1.8.1.2 In case of differences between building codes, state laws, local ordinances, utility company regulations, and Contract Documents,the most stringent shall govern. 1.8.2 Product Approvals: See paragraphs elsewhere in this specification. 1.8.3 Manufacture: Use domestic made pipe, pipe fittings,and motors on Project. 1.8.4 Identification: Motor and equipment name plates as well as applicable UL and AGA labels shall be in place when Project is turned over to Owner. 1.9 CODES AND STANDARDS 1.9.1 Codes and agencies having jurisdictional authority over mechanical installation. 1.9.1.1 Washington State Energy Code rr 1.9.1.2 International Building Code -- Latest Approved Edition 1.9.1.3 International Fire Code—Latest Approved Edition 1.9.1.4 International Mechanical Code-- Latest Approved Edition 1.9.1.5 Uniform Plumbing Code-- Latest Approved Edition 1.9.1.6 Local Sewer and Water District Requirements +rr 1.9.1.7 State and County Department of Health r�r BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000-5 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS ow 1.9.1.8 Local Fire Marshal 10 1.9.1.9 State Boiler Inspector 1.9.1.10 Puget Sound Air Pollution Control mit 1.9.1.11 State of Washington Boiler and Unfired Pressure Vessel Inspection Law 1.9.1.12 Occupational Safety and Health Administration (OSHA) 1.9.1.13 Washington Industrial Safety and Health Act(WISHA) 1.9.1.14 National Fire Protection Association(NFPA) 1.9.2 ASME code stamp required on all pressure vessels and relief valves. Certificate required from Wb the State Boiler Inspector showing approval of the equipment and its installation. 1.10 PRODUCT HANDLING AND PROTECTION lib 1.10.1 Contractor is responsible for protection of all material, equipment and apparatus provided under this Section from damage, water, corrosion, freezing and dust, both in storage and when installed, until final project acceptance. 1.10.2 Provide temporary heated and sheltered storage facilities for material and equipment. 1.10.3 Completely cover motors and other moving machinery to protect from dirt and water during construction. aim 1.10.4 Handle and protect equipment and/or material in manner precluding unnecessary fire hazard. 1.10.5 Equipment requiring rotation and/or lubrication during storage shall have records maintained and +r�+ witnessed on a monthly basis and forwarded to the Architect/Engineer prior to acceptance. 1.10.6 Material or equipment damaged because of improper storage or protection will be rejected. 1.10.7 Equipment finish that is damaged by handling, storage, etc. shall be corrected by the Contractor at no additional cost to the Owner. 1.11 WARRANTIES ■u 1.11.1 In addition to guarantee specified in General Conditions, guarantee heating, cooling, and plumbing systems to be free from noise in operation that may develop from failure to construct system in accordance with Contract Documents. 1.11.2 In order to be protected, secure proper guarantees from suppliers and Subcontractors. war BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000-6 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1.12 TEMPORARY HEATING 1.12.1 Temporary heating for facility during construction phase shall not be supplied by the permanent system installed under these specifications. Ali 1.13 ABBREVIATIONS ADA Americans with Disabilities Act AFF Above Finish Floor AGA American Gas Association NO AMCA Air Moving&Conditioning Association ANSI American National Standards Institute APWA American Public Works Association ASHRAE American Society of Heating, Refrigerating and Air Conditioning Engineers ASME American Society of Mechanical Engineers ASTM American Society of Testing& Materials AWWA American Water Works Association +rir BFF Below Finish Floor BHP Brake Horsepower BTU British Thermal Unit rir CFM Cubic Feet per Minute CISPI Cast Iron Soil Pipe Institute fpm feet per minute FS or Federal Specifications F.D.C. Fire Department Connection F.C.O Flush Cleanout F.D. Floor Drain FWH Freeze Proof Wall Hydrant +rw GPM Gallons per Minute HP Horsepower IAPMO International Association of Plumbing and Mechanical Officials IAQ Indoor Air Quality IEEE Institute of Electrical and Electronics Engineers KW Kilowatt MBH One Thousand British Thermal Units per Hour MSS Manufacturers Standardization Society NEC National Electrical Code NEMA National Electrical Manufacturers Association NFPA National Fire Protection Association NP Non-Potable Water NPSH Net Positive Suction Head BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000-7 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS wr OS&Y Outside Screw and Yoke P.I.V. Post Indicator Valve PDI Plumbing and Drainage Institute per in accordance with POC Point of Connection PSI Pounds per Square Inch Gauge Pressure PVC Polyvinyl Chloride SMACNA Sheet Metal and Air Conditioning Contractors National Association SP Static Pressure Oh UL Underwriter's Laboratories VTR Vent Thru Roof w.g. Water Gauge(inches of water) W.P. Working Pressure 11111 WPL Weatherproof Louver WQA Water Quality Association Additional abbreviations are as listed on the drawings or elsewhere in these specifications. 1.14 DEFINITIONS 1.14.1 Finished Spaces: Spaces used for habitation or occupancy where rough surfaces are plastered, paneled,or otherwise treated to provide a pleasing appearance. 1.14.2 Unfinished Spaces: Spaces used for storage or work areas, such as fan rooms, mechanical and boiler rooms, etc., where appearance is not a factor. `r 1.14.3 Concealed Spaces: Spaces out of sight. For example, above ceilings; below floors; between double walls; furred-in areas; pipe and duct shafts; and similar spaces. 1.14.4 Exposed: Open to view. For example, pipe running through a room and not covered by other construction. 1.14.5 Outside: Open to view up to 5 feet beyond the exterior side of walls, above the roof, and unexcavated or crawl spaces. 1.14.6 Conditioned Space: An area, room or space normally occupied and being heated or cooled for human habitation by any equipment as defined by the extent of the building envelope insulation. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000- 8 ASr dir MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 1.15 AS-BUILT DRAWINGS 411 1.15.1 The Contractor shall maintain, in addition to any reference drawings, an as-built set of prints, which have been reproduced from the approved site set on which all deviations from the original design shall be drafted in a neat, legible manner with red colored pencil. This red lined set shall identify all drawing revisions including addenda items, change orders,and Contractor revisions. 1.15.2 Drawings shall show locations of all underground pipe and duct installed by this Contractor. Underground pipes and ducts shall be shown with cross section elevations. All pipe, raceway, manholes or lines of other trades shall be included. 1.15.3 The Contractor shall update all references to specific products to indicate products actually installed on project. This shall include,but not be limited to, air handlers,heat pumps etc. PART 2 - PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS 2.1.1 Any reference to the specifications or on the drawings to any article, device, product, material, fixture, form or type of construction by manufacturer, name, make, or catalog number shall be interpreted as establishing a standard of quality and shall not be construed as limiting competition. 2.1.2 The manufacturer listed as Acceptable Manufacturers are approved to bid the project for the items indicated without obtaining prior approval. Other manufacturers desiring to bid the project require prior approval. 2.1.3 The listing of a manufacturer as an Acceptable Manufacturer does not necessarily mean that the products of that manufacturer are equal to those specified. The listing is only an indication of those manufacturers which may be capable of manufacturing, or have in the past manufactured, items equal to those specified, and is intended to aid the Contractor in identifying manufacturers. 2.1.4 Products provided by Acceptable Manufacturers shall be equal to or superior to the specified ids manufacturer's item in function, appearance, and quality, and shall fulfill all requirements of the plans and specifications. The Architect/Engineer shall be the final judge as to whether an item meets these requirements or not. If a manufacturer is not certain that his product meets these requirements or not, then the manufacturer shall submit data as required to obtain the Design Consultant's approval prior to bid opening. 2.1.5 The approval of a manufacturer applies to the manufacturer only and does not relieve the odd Contractor from the responsibility of meeting all applicable requirements of the plans and specifications. 2.1.6 Contractor shall be responsible for all costs to other trades and all revisions required to a■ accommodate any products which are different from those specified or shown. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000-9 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 2.1.7 In reviewing a manufacturer for acceptance, factors considered include the following: engineering data showing item's performance, proper local representation of manufacturer, likelihood of future ai manufacturer's local support of product, service availability, previous installation, previous use by Owner/Engineer/Architect and record, product quality, availability/quality of maintenance and operation data, capacity/performance compared to specified items, acoustics, items geometry/access utility needs, and similar concerns. 2.1.8 If approval is received to use other than specified items, responsibility for specified capacities and ensuring that items to be furnished will fit space available lies with this Division. two 2.1.9 If non-specified equipment is used and it will not fit job site conditions, this Division assumes responsibility for replacement with items named in Specification. 2.2 ACCESS DOORS 2.2.1 This Contractor shall be responsible for furnishing and installing flush mounted access doors in walls, ceiling and floors and chases where the following equipment is concealed and is not accessible through same. 2.2.2 Valves(shut off,balancing,control, trap primers, sprinkler testing). 2.2.3 Dampers(control,balancing,fire, smoke, etc.). 2.2.4 Doors shall be UL listed 16 ga. cold rolled steel with concealed hinge, screwdriver operated lock and prime coated. Furnish suitable for area mounted. Provide stainless steel access doors for non-painted surfaces(i.e. tile, MDF) 2.2.5 Approved Manufacturers: 2.2.5.1 Milcor rrr 2.2.5.2 Acudor 2.2.5.3 Greenheck Mil 2.2.5.4 Nystrom lib PART 3 - EXECUTION Oki 3_1 WORKMANSHIP 3.1.1 This Contractor shall provide completed systems with a neat and finished appearance. If, in the s+ judgment of the Engineer, any portion of the work has not been performed in a workmanlike manner or is left in a rough, unfinished state, this Contractor will be required to remove, reinstall or replace same and patch and paint surrounding surfaces in a manner acceptable to the Engineer, without increase in cost to the Owner. BLRB ARCHITECTS 04/02/13 at BCE ENGINEERS, INC. PAGE: 200000- 10 rw MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 3.2 CLOSEOUT SUBMITTALS sr 3.2.1 Requirements: Final approval of mechanical installation will be recommended upon completion of the following: tak 3.2.1.1 Completion of all punchlist items 3.2.1.2 Operation instruction period to Owner's satisfaction 3.2.1.3 Permit Submittal wr 3.2.1.4 Valve Diagrams 3.2.1.5 Reproducible As-Built drawings delivered to Architect wr 3.2.1.6 Air and/or Water Balance Report 3.2.1.7 Asbestos Free Statement 3.2.1.8 Guarantees err 3.2.1.9 Equipment Manufacturer of all HVAC compressor units shall provide start-up logs. 3.3 FINAL INSPECTION 3.3.1 Final Inspection: 3.3.1.1 Prior to acceptance of the mechanical work,the Contractor shall put all mechanical systems into operation for a period of not less than 5 working days so that they may be inspected by the Architect/Engineer and the Owner's representatives. air 3.3.1.2 The time of the final inspection shall be mutually agreed to by the Owner, Engineer, and Contractor. fem 3.3.1.3 The Contractor shall furnish adequate staff to operate the mechanical systems during inspection. 3.4 OPERATION AND MAINTENANCE TRAINING ,r,,, 3.4.1 Upon completion of the work, and after all tests and final inspection of the work by the Authority(s) having jurisdiction, the Contractor shall demonstrate and instruct the Owner's designated operation and maintenance personnel in the operation and maintenance of the various mechanical systems. The Contractor shall arrange scheduled instruction periods with the Owner. The Contractor's representatives shall be Superintendents or Foremen knowledgeable in each system and Supplier's Representative when so specified. 3.4.2 Scheduled instruction periods shall be: Mechanical & Plumbing Systems 8 Hours °`Y1 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000- 11 110 MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 3.4.3 Costs for time involved by Contractor shall be included in the bid. Ha 3.4.4 Owner can use allocated hours in as many sessions and on as many separate days as requested. 3.4.5 All training to be video recorded and provided on DVD. 3.5 PREPARATION rig 3.5.1 New Buildings: Each Section of this Division shall bear expense of cutting, patching, repairing, and replacing of work of other Sections required because of its fault, error, tardiness, or because of damage done by it. 3.6 INSTALLATION 3.6.1 Install mechanical equipment to permit easy access for normal maintenance, and so that parts requiring periodic replacement or maintenance, (e.g., coils, heat exchanger bundles, sheaves, filters, motors,bearings, etc.)can be removed. Relocate items,which interfere with access. 3.6.2 Provide access doors in equipment, ducts, and walls/ceilings as required to allow for inspection and proper maintenance. 3.6.3 Valves, damper operators, and other devices which are manually adjusted or operated shall be located so as to be easily accessible by a person standing on the floor. Any such items which are not in the open shall be made accessible through access openings in the building construction. 3.6.4 Gauges, thermometers, instrumentation and other components which are installed to monitor equipment performance, operating conditions, etc., shall be oriented so as to be easily read by a person standing on the floor. Provide necessary brackets and hangers as needed. 3.6.5 If circumstances at a particular location make the accessible installation of an item difficult or inconvenient, the situation shall be discussed with the Architect/Engineer before installing the item in a poor access location. 3.6.6 Belts, pulleys, couplings, projecting set screws, keys and other rotating parts which may pose a danger to personnel, shall be fully enclosed or guarded in accordance with OSHA regulations. mia 3.6.7 Dissimilar Metals: Provide separations between all dissimilar metals. Where not specified in another way, use 10 mil black plastic tape wrapped at point of contact or plastic centering inserts. 3.6.8 Provide offsets around all electrical panels (and similar electrical equipment) to maintain space am clear above and below panel to structure and clearance of 3.5 feet directly in front of panel, except where indicated otherwise or required by NEC to be more. Such offsets are typically not shown on the drawings,but are required per this paragraph. err 11111 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000— 12 NMI MEADOW CREST PLAYGROUND SECTION 200000 PROJECT NO. 11.12.116 GENERAL MECHANICAL REQUIREMENTS 3.6.9 Piping Through Framing: Piping through framing shall be installed in the approximate center of the member. Where located such that nails or screws are likely to damage the pipe, a steel plate at least 1/16-inch thick shall be installed to provide protection. At metal framing, wrap piping to prevent contact of dissimilar metals. At metal and wood framing, provide plastic pipe insulators at piping penetrations through framing nearest each fixture and on at least 48-inch centers. 3.6.10 Safety Protection: All ductwork,piping and related items installed by this Contractor that present a safety hazard (i.e., items installed at/near head height, items projecting into maintenance access paths, etc.) shall be covered (at hazardous area) with 3/4" thick elastomeric insulation and 2" wide reflective red/white striped self-sticking safety tape. 3.6.11 Equipment Access: Access to equipment is of utmost importance. Contractor shall apply extra attention to the laying out of pipe and duct routings, and in coordinating all work. Poor access to equipment will not be accepted. Contractor shall note that in essentially all areas,piping routed in ceiling space needs to run in joist space, necessitating elbows/fittings/transitions at crosses with other trades, at structural beams, and at all connections to mains and branches. Hatched areas at HVAC units indicate equipment access areas. These (and all other) access areas shall be clear of obstructions. The Contractor is responsible to coordinate and ensure that all trades stay clear of access areas for any equipment. 41111 3.6.12 Ensure that items to be furnished fit space available. Make necessary field measurements to ascertain space requirements including those for connections and furnish and install equipment of size and Aim shape so final installation shall suit true intent and meaning of Contract Documents. 3.6.13 Pipe Installation: Install piping in longest reasonable lengths. The use of short lengths of pipe with multiple couplings where a single length of pipe could have been used is not acceptable. 3.7 ADJUSTMENT AND CLEANING ass 3.7.1 Properly lubricate equipment before Owner's acceptance. 3.7.2 Clean exposed piping, ductwork, equipment, and fixtures, remove debris from site. Repair damaged finishes and leave everything in working order. 3.7.3 Remove stickers from fixtures and adjust flush valves. 3.8 PAINTING 3.8.1 Paint all exposed pieces of equipment if not factory finished or painted under the Architectural Section of these specifications. Paint shall be one coat primer and two coats enamel color as directed by the Architect. 3_9 REBATES 3.9.1 Furnish vendor invoices on heat pumps to Owner after installation for power company rebates. END OF SECTION fig BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 200000- 13 N.r MEADOW CREST PLAYGROUND SECTION 220523 PROJECT NO. 11.12.116 VALVES FOR PLUMBING PIPING err GS PART 1 - GENERAL 1_1 GENERAL 1.1.1 Includes,but not limited to, valve installation for all systems with water. 1_2 QUALITY ASSURANCE �wr 1.2.1 Comply with MSS SP-25. rr 1_3 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.3.1 All valve types. dim PART 2 - PRODUCTS 2.1 GENERAL 2.1.1 Provide factory-fabricated valves recommended by manufacturer for use in service indicated. Provide valves of types and pressure rating indicated; provide proper selection as determined by installer to comply with installation requirements. Provide sizes as indicated, and connections which properly mate with pipe, tube, and equipment connections. Where more than one type is indicated, selection is Installer's option. Valves shall be of same make for all these services. ,rr 2_2 BALL VALVES rr 2.2.1 General - Select with FULL port opening or Standard port opening[*], blow-out proof stem, hard chrome plated bronze ball, rated not less than 600# W.O.G. (Where Cv factor is critical use FULL port opening.) 2.2.2 Comply with the following standards: 2.2.2.1 MSS SP-1 10 Ball Valves -THREADED, SOLDER JOINT rrr 2.2.3 For Domestic Water Service: 2.2.3.1 Threaded Ends 4" and Smaller: 600# W.O.G., bronze two piece body, hard chrome plated bronze ball,true adjustable packing nut("O"-ring only type stem seal not acceptable), blow-out proof stem: HAMMOND 8301,Nibco T-585-70, Stockham S206-BR-RT, Apollo 70-Series, [*] or equal. w. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220523 — 1 NMI MEADOW CREST PLAYGROUND SECTION 220523 PROJECT NO. 11.12.116 VALVES FOR PLUMBING PIPING 2.2.3.2 Soldered Ends 3" and Smaller: 600# W.O.G., bronze two piece body, hard chrome plated bronze ball,true adjustable packing nut("O"-ring only type stem seal not acceptable),blow-out proof stem: HAMMOND 8311,Nibco S-585-70, Stockham S206-BR-RT, Apollo 70-Series [*], Milwaukee BA-150, or equal. 2.2.4 Manufacturer: Subject to compliance with requirements, provide ball valves of one of the following: 2.2.4.1 MILWAUKEE VALVE COMPANY 2.2.4.2 BRASS 2.2.4.3 APOLLO(BY CONBRACO INDUSTRIES) 2.2.4.4 NIBCO PART 3 - EXECUTION 3.1 INSTALLATION 3.1.1 General: Except as otherwise indicated, comply with the following requirements. 3.1.2 Install valves where required for proper operation of piping and equipment, including valves in branch lines where necessary to isolate sections of piping. Locate valves so as to be accessible and so that separate support can be provided when necessary. 3.1.3 Install valves with stems pointed up, in vertical position where possible,but in no case with stems pointed downward for horizontal plane unless unavoidable. 3.1.3.1 Applications Subject to Shock: Install valves with bodies of metal other than cast iron ++ where thermal or mechanical shock is indicated or can be expected to occur. 3.1.3.2 Selection of Valve Ends (Pipe Connections): Except as otherwise indicated, select and install valves with the following ends or types of pipe/tube connections: 3.1.3.2.1 Tube Size 2" and Smaller: Soldered joint valves. 3.1.3.2.2 Pipe Size 2" and Smaller: One of the following at installer's option: 3.1.3.2.2.1 Threaded Valves f1° 3.1.3.2.2.2 Grooved-end Valves END OF SECTION Nuo BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220523 -2 rr+r irr MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS .�r FOR PLUMBING EQUIPMENT us PART 1 - GENERAL L1 GENERAL 1.1.1 Includes: dili 1.1.1.1 Pipe Hangers and Supports 1.1.1.2 Duct Hangers and Supports 1.1.1.3 Mechanical Equipment Anchors and Supports 1_2 RELATED SECTIONS du 1.2.1 All Division 23 using piping,ductwork,equipment and air terminals. ro 1_3 QUALITY ASSURANCE 1.3.1 Pipe Hanger Standards: (MSS) Manufacturers Standardization Society Standards SP-58-2002, SP-89-2003, and SP-69-2003. 1.3.2 All methods, materials, and workmanship shall conform to the International Building Code (IBC) and International Mechanical Code(IMC), as amended and adopted by the authority having jurisdiction. 1.4 SUBMITTAL REQUIREMENTS OF THIS SECTION sirr 1.4.1 Hangers. 1.4.2 Struts. err 1.4.3 Anchors. 1.4.4 Shop drawings are required for all equipment supports and fabricated supports or assemblies. PART 2 - PRODUCTS lei 2.1 ACCEPTABLE MANUFACTURERS 2.1.1 Hangers and Supports: Elcen,Grinnell, B-Line Systems, Unistrut, Michigan,Tolco, PHD. 2.1.2 Anchors: Rawplug, Phillips, Hilti, Michigan. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529— 1 rr lib MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS FOR PLUMBING EQUIPMENT „s, 2.2 GENERAL HANGERS AND SUPPORTS 2.2.1 Hanger Rods: Threaded hot rolled steel, electro-galvanized or cadmium plated. Hanger rods shall be sized so that the total load (including pipe or duct, insulation, hangers, and fluid) does not exceed the following: rr Nominal Rod Diameter Maximum Load 3/8 Inch 610 Pounds 1/2 Inch 1130 Pounds 2.2.2 Hanger Straps: Galvanized steel. Straps shall be sized so that the total load does not exceed the following: Strap Size Maximum Load 1"x 22 Gauge 230 Pounds 1"x 20 Gauge 290 Pounds 1"x 18 Gauge 380 Pounds 1"x 16 Gauge 630 Pounds 2.2.3 Beam Attachments: Shall be of the following type: si MSS Type Elcen Figure No. Grinnel Figure No. 21 33, 34 131 22 67 66 23 29A 87 28 95 292,228 30 95 229 NW 2.2.4 Anchors: Masonry anchors shall be Phillips wedge anchors, Phillips "Red Head" or Rawl "Saber- Tooth". 2.2.5 Steel: Structural steel per ASTM A36. 2.2.6 Wood: Shall be fire treated. mit 2.3 PIPE HANGERS AND SUPPORTS 2.3.1 All hangers used directly on copper pipe shall be copper plated or have a factory applied 1/16- inch thick(minimum)plastic coating on all contact surfaces. 2.3.2 All other hangers, supports, and hardware shall be cadmium plated or galvanized. 2.3.3 Fire sprinkler supports shall comply with NFPA-13. 2.3.4 Pipe Hangers and Supports: Shall be of the following type(numbers are 'MSS'): Maximum System Temperature Insulated Pipe Type 120 to 450 Degrees 1, 3, 7, 9, 10,41,42,43,44, 45,46, E smo 60 to 120 Degrees 1, 3, 7, 9, 10 33 to 59 Degrees 1, 3, 5, 7, 9, 10,41,42,43, 44,45,46, E mo BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529-2 MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS rill FOR PLUMBING EQUIPMENT 2.3.5 Vertical Pipe Supports: MSS Type 8 riser clamp (elcen Fig. 39 and 339; Grinnel Fig. 261 and o�Y 261C). 2.3.6 Trapeze Hangers: Shall be constructed of carbon steel angles, channels, or other structural shapes with flat surface for point of support. Trapeze hangers shall be supported with hanger rods suspended ail from concrete inserts or approved structural clips. Provide a steel washer plate (Elcen Fig. 84 or equal) where hanger rod nuts bear on trapeze hanger. 2.3.7 Insulated Pipe Supports and Insulation Shields: 2.3.7.1 Insulation material at pipe support shall consist of expanded perlite insert with flame resistant jacket of nylon reinforced kraft paper bonded to aluminum foil cover on insulation, with sheet metal shield. Expanded perlite shall have no more than 5% deformation at 100 psi and a thermal conductivity no more than 0.32 Btu/hr./sq. ft./degree F/1-inch thick. aim 2.3.7.2 Expanded perlite insert shall be same thickness as adjoining pipe insulation and sized to match pipe in which it is used on. See Section 220719 for insulation sizes. 2.3.7.3 Provide shield per Section 221119 Piping Specialties. 2.3.7.4 Manufacturer: Michigan Hanger Company, Model Nos. 1031 and 4031. 2.4 DUCT HANGERS AND SUPPORTS 2.4.1 Hangers: As shown in SMACNA HVAC Duct Construction Standards. 2.4.2 Vertical Duct Supports at Floor: 1-1/2" x 1-1/2" x 1/8" (minimum) galvanized steel angle and to support ducts, as shown in SMACNA HVAC Duct Construction Standards Figure 4-6. For ducts over 30 inches wide, provide riser reinforcing with hanger rods between the riser support and riser reinforcing. ++� 2.4.3 Vertical Duct Supports at Wall: 1-1/2" x 1/8" (minimum) strap or 1-1/2" x 1-1/2" x 1/8" (minimum)angle bracket and as shown in SMACNA HVAC Duct Construction Standards Figure 4-7. 2.4.4 Hanger Attachments to Structure: As shown in SMACNA HVAC Duct Construction Standard Figures 4-1, 4-2, 4-3 to suit building construction and as allowed on structural drawings. Where C- clamps are provided,retainer clips shall be used. Friction beam clamps shall not be used. 2.4.5 Hanger Attachments to Ducts: As shown in SMACNA HVAC Duct Construction Standards Figure 4-4. PART 3 - EXECUTION 3.1 INSTALLATION-GENERAL 3.1.1 Provide all necessary bolts, nuts, washers, turnbuckles, rod connectors, and any other miscellaneous accessories required for the support and anchoring of all pipes, ducts, and mechanical equipment. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529-3 rr MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS FOR PLUMBING EQUIPMENT or 3.1.2 Install steel or wood backing in walls (anchored to studs) as required to provide support for items hung from walls. �r 3.1.3 Install concrete inserts and anchors in accordance with manufacturer's instructions. ink 3.1.4 All welded steel support assemblies shall have a power wire brush and primer paint finish. 3.1.5 Attach to building structure as shown on drawings(reference structural drawings). 3.1.6 Maximum spans between piping supports may be significantly less than the maximum spans allowed herein due to structural limitations of allowable loads on hangers. The most restrictive criteria governs. Reference structural drawings. war 3.2 INSTALLATION OF PIPE HANGERS AND SUPPORTS to 3.2.1 Pipe which is not run underground, shall be adequately anchored to the structure to prevent sagging and to keep pipe in alignment. 3.2.2 All pipe supports shall be provided with a means of adjustment for the aligning and leveling of the pipe after installation. a 3.2.3 Installation and sizing of pipe supports and accessories shall be in accordance with the manufacturers recommendations and standard MSS SP-89 and MSS SP-69, UBC 9-1 for fire protection piping, UPC,and IMC. , , 3.2.4 Provide supports at each change in direction of piping; and on cast iron soil pipe at each branch connection and at each side of concentrated loads. 3.2.5 Where mechanically coupled piping is used, a hanger shall be placed within 2 feet on each side of couplings,with hanger spacing in no case to exceed the following: Maximum Span Mechanically rom Nominal Pipe Diameter Coupled Piping %to 1 Inch 7 Feet 1 'A to 1 '/2 Inch 7 Feet 2 Inches 10 Feet 21/2 Inches 10 Feet 3 Inches and Larger 12 Feet NOTE: Manufacturer's support instructions shall be used where it is more restrictive than the above. Above is for rigid coupled piping systems. Follow manufacturer's requirements for flexible piping systems, except that in no case is spacing to be more than the above. "' 3.2.6 Steel Pipe: Maximum spacing between supports: Nominal Pipe Diameter Maximum Span Steel Pipe rrr '/2 Inch 6 Feet 3/4 to 1 Inch (3/4 Inch to 1 Inch*) 8 Feet 1 '/4 to 2 '/2 Inch (1 1/4 Inch or Larger*) 10 Feet 3 Inches and Larger 12 Feet *Gas piping. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529-4 arr MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS FOR PLUMBING EQUIPMENT 3.2.7 Copper Tubing: Maximum spacing between supports: Nominal Tubing Diameter Maximum Span Copper 'h Inch 5 Feet 3/4 to 1 '/4 Inch 6 Feet as 1 '/2 to 2 '/z Inch 8 Feet 3 Inches and Larger 10 Feet 3.2.8 No-Hub Cast Iron Soil Pipe: Shall be supported at everyother joint, except when the pipe length Pp p P P g between joints exceeds 4 feet, in which case the pipe shall be supported at each joint. Supports shall be provided at each horizontal branch connection and shall be adjacent to couplings. drr 3.2.9 Four or more pipes running parallel may be supported on trapeze hangers provided the slopes of such pipes allow use of common trapeze. Where trapeze width exceeds 24 inches, provide three (3) tee hanger rod supports. 3.2.10 Provide additional supports at concentrated loads (such as valves, in-line pumps, etc.) on each side of the load. Such supports are in addition to the ones otherwise required. 3.2.11 Vertical Piping Supports: Support piping at each floor line with pipe clamps and at intermediate points as required to prevent excessive pipe movement and so as to comply with the maximum spacings cited above. Support all pipe stacks at their bases with a concrete pier or suitable hanger. For vertical pipe drops which occur away from a wall or similar anchoring surface, provide angled bracing from nearest structure to provide rigid anchoring of pipe drop. 3.2.12 Insulated Pipe Supports and Insulation Shields: Protect insulated pipe at point of support with pipe insert and shield as required by the following table: Nominal Pipe Insulation Length Shield Length Minimum Shield 81111 Diameter in Inches in Inches in Inches Gauge '/z to 2 6 6 20 2 '/Z to 3 '/2 6 6 18 4to5 9 8 18 6to 10 9 8 16 Such supports shall be in place at the time of installing pipe. 3.2.13 Underground Pipe: Shall be evenly supported on approved bedding materials, as specified for the ,dell type of piping being used. Such bedding and backfilling shall be as specified in Section 222000. 3.3 INSTALLATION OF DUCT HANGERS AND SUPPORTS r�r 3.3.1 Provide anchors and supports for all ductwork. 3.3.2 Rectangular Duct: Supports and hangers shall be of size and spacing as shown in SMACNA HVAC Duct Construction Standards for the appropriate class of duct. (Hangers maximum allowable loads shall not be as shown in SMACNA Tables but shall be as specified in these specifications.) 3.3.3 Round Duct: Supports and hangers shall be of size and spacing as shown in SMACNA HVAC Duct Construction Standards for the appropriate class of duct. ON BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529-5 rr sib MEADOW CREST PLAYGROUND SECTION 220529 PROJECT NO. 11.12.116 HANGERS AND SUPPORTS FOR PLUMBING EQUIPMENT 3.3.4 Maximum Hanger Spacing (provided duct gauge and reinforcement comply with SMACNA Standards for such spacing): ima Duct Area Maximum Spacing Up to 4 sq. ft. (27" Diameter) 8 Feet 4.1 to 10 sq. ft. (28"to 42" Diameter) 6 Feet 10.1 sq. ft. and up(43" Diameter and up) 4 Feet 3.3.5 Provide supports at each change in direction of duct. Locate hangers at inside and outside corners of elbows,or at each end of fitting, on each side. 3.3.6 Provide additional supports at each side concentrated loads (such as modulating dampers, duct heaters, sound attenuators, etc.) rri 3.3.7 Provide supports for exterior ductwork per SMACNA HVAC Duct Construction Standards or as detailed on the drawings. 3.4 INSTALLATION OF MECHANICAL EQUIPMENT ANCHORS AND SUPPORTS Ilk 3.4.1 Provide anchoring and supports for all mechanical equipment. 3.4.2 Heating, Ventilating and Air Conditioning equipment where suspended from structure shall be as supported per SMACNA HVAC Duct Construction Standards or as shown on the drawings. 3.4.3 Roof mounted equipment shall be installed on roof curbs provided with the equipment (unless indicated otherwise). Such equipment shall be anchored to the curb, with the curb anchored to the building structure. 3.4.4 Equipment shall be supported and anchored in such a way so that no equipment vibration is transmitted to the building structure. 3.4.5 Added supports and bracing shall be provided per Section 220548. 3.4.6 Provide curbing as shown on drawings and as required to support all mechanical equipment. bit END OF SECTION aaa rrw BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220529-6 rr MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 11.12.116 PIPING INSULATIONS PART 1 - GENERAL 11 GENERAL 1.1.1 Includes, but not limited to, insulating of piping and fittings per schedule in Part 3 of this air specification. 1.1.2 Insulation at Hangers: Insulation shall be continuous through hangers on all insulated systems. Inserts at hangers are specified in Section 220719 and are considered as part of the hanger and support system. Inserts are required to be installed at the time of pipe installation and are intended to be installed by the Contractor installing the pipe hangers/supports. See Section 220719. +rr 1.1.3 The intent of this section is to meet or exceed the requirements of the most current version of the Washington State Energy Code(WSEC). The stricter of this section and WSEC shall be met. err 1.2 RELATED SECTIONS w 1.2.1 General Conditions, Division 01 1.2.2 Section 200000—General Mechanical Requirements 1.2.3 Section 220529—Hangers and Supports for Plumbing Equipment 1.2.4 Section 221116—Domestic Water Pipe and Fittings rr 1.3 SECTION INCLUDES rr 1.3.1 Piping insulation,jackets,and accessories. r■ 1_4 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.4.1 All insulation rr 1.4.2 Field Applied Jackets rr PART 2 - PRODUCTS 2.1 PIPE INSULATIONS 2.1.1 Glass Fiber: Meeting ASTM C547; rigid molded, noncombustible. rr 2.1.1.1 'K'('ksi') Value: 0.23 at 75 degrees F (0.033 at 24 degrees C). BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220719- 1 rr semimmomisor rir MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 11.12.116 PIPING INSULATIONS 2.1.1.2 Maximum Service Temperature: 850 degrees F(454 degrees C). 2.1.1.3 Vapor Retarder Jacket: AP-T PLUS White kraft paper reinforced with glass fiber yam and bonded to aluminum foil, secure with self sealing longitudinal laps and butt strips or AP Jacket with outward clinch expanding staples or vapor barrier mastic as needed. 2.1.2 Pre-insulated Pipe: 2.1.2.1 Carrier pipe to be Schedule 40 steel for heating systems over 90°F, Schedule 80 PVC for water systems less than 90°F, and copper for domestic hot water. 2.1.2.2 Jacket material to be schedule 80 PVC. 2.1.2.3 Insulation to be polyurethane foam. Insulation shall completely fill the annular space between the carrier pipe and jacket. Insulating rated temperature to be -40°F to 250°F. Minimum thermal conductivity to be 0.14 Btu-hr/sq. ft./°F/inch at 73°F. 2.1.2.4 Install pipes and accessories per manufacturer's recommendations. 2.1.2.5 Approved Manufacturers: 2.1.2.5.1 Perma-Pipe is 2.1.2.5.2 Thermacor 2.1.3 Field Applied Jackets: 2.1.3.1 PVC Plastic: One piece molded type fitting covers and jacketing material,gloss white. 2.1.3.2 Connections: Tacks; Pressure sensitive color matching vinyl tape. 2.1.3.3 Canvas Jacket: UL listed fabric, 6 oz/sq yd (220 g/sq m), plain weave cotton treated with dilute fire retardant lagging adhesive. 2.1.3.4 Aluminum Jacket: 0.016 inch (0.045 mm) thick sheet, (smooth/embossed) finish, with 11116 longitudinal slip joints and 2-inch (50 mm) laps, die shaped fitting covers with factory attached protective liner. mil 2.1.3.5 Approved Manufacturer: Manville Zeston 2000. 2.1.4 Approved Manufacturers: 2.1.4.1 Manville 2.1.4.2 Armstrong 2.1.4.3 Knauf 2.1.4.4 Owens Corning BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220719-2 MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 1 1.12.1 16 PIPING INSULATIONS to 2.1.4.5 IMCOA (for Flexible Unicellular Polyolefin only) .rr PART 3 - EXECUTION 3_1 EXAMINATION AND PREPARATION to 3.1.1 Verify that piping has been tested for leakage in accordance with U.P.C. standards before applying insulation materials. 3.1.2 Verify that all surfaces are clean, dry,and free of foreign material. to 3.2 INSTALLATION 3.2.1 Install materials in accordance with manufacturer's recommendations, building codes, and industry standards. 3.2.2 Continue insulating vapor barrier through penetrations except where prohibited by code. ■r 3.2.3 Piping Insulation: 3.2.3.1 Locate insulation and cover seams in least visible locations. 3.2.3.2 Neatly finish insulation at supports, protrusions, and interruptions. 3.2.3.3 Provide insulated dual temperature pipes or cold pipes conveying fluids below ambient temperature with vapor retardant jacket with self sealing laps. Insulate complete system. 3.2.3.4 For insulated pipes conveying fluids above ambient temperature, secure jackets with self No sealing lap or outward clinched, expanded staples. Bevel and seal ends of insulation at equipment, flanges, and unions. 3.2.3.5 Insulated pipe supports and insulation shield shall be in place at each hanger and support as required by Section 220529 prior to insulating. 3.2.3.6 For pipe exposed in mechanical equipment rooms or exposed in finished spaces up to 10 feet above finished floor, finish with Manville Zeston 2000 PVC jacket and fitting covers or aluminum jacket. fir 3.2.3.7 For exterior applications, provide weather protection jacket or coating. Insulated pipe, fittings, joints, and valves shall be covered with Manville Zeston 2000 PVC or aluminum jacket. Jacket seams shall be located on bottom side of horizontal piping. rr 3.2.3.8 Insulate trap and hot water supply on ADA compliant lavatories. See Plumbing Fixture Schedule and Section 224000 for ADA compliant lavatory for approved application. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220719-3 rr a MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 11.12.116 PIPING INSULATIONS 3.2.3.9 Installation of below ground chilled water, heating water, and domestic hot water piping insulation: All piping shall be insulated with "Foamglass" type with heat sealed "pittwrap" or pre- insulated r� pipe system. 3.2.3.10 Refrigeration Piping: 3.2.3.10.1 Install insulation in snug contact with pipe and in accordance with manufacturer's recommendations. w i 3.2.3.10.2 Stagger joints on layered insulation. 3.2.3.10.3 Slip insulation on tubing before tubing sections and fittings are assembled keeping slitting of insulation to a minimum. 3.2.3.10.4 Seal joints in insulation. a 3.2.3.10.5 Insulate flexible pipe connectors. 3.2.3.10.6 Insulation exposed outside building shall have "slit" joint seams placed on bottom of pipe and given two coats of gray adhesive finish. 3.2.3.10.7 Insulate fittings with sheet insulation and as recommended by manufacturer. a 3.2.3.10.8 Hydronic system (water loop heat pump) piping that operates between 60°F and 90°F will be uninsulated. 3.2.3.10.9 Flexible Polyolefin Cellular Pipe Insulation Installation: 3.2.3.10.10 Slip insulation on the pipe before making connections wherever possible or install pre- slit, pre-glued over pipe sealing longitudinal joint as per manufacturer's recommendations. Fabricate fittings from polyolefin insulation. Seal all butt joints and fittings using factory recommended fuse seal joining system as per manufacturer's instructions. a 3.2.3.10.11 At pipe hanger locations, see specification Section 220529 for insulated pipe supports. 3.2.3.10.12 For direct burial applications, material to be sized per manufacturer's recommendations to allow for compression. Fuse seal all butt joints and fittings using factory recommended fuse seal joining system as per manufacturer's instructions. Back fill with medium grade sand to a minimum oil of 6 inches in thickness. 3.2.4 Equipment Insulation Installation: Install sheets of polyolefin in largest manageable sizes. Apply full coverage of manufacturer's recommended adhesive to both the equipment and insulation, or use pre- glued flat sheets of insulation. Butt all joints firmly together and apply factory adhesive or fuse seal system into joint as per manufacturer's instructions. a BLRB ARCHITECTS 04/02/13 a BCE ENGINEERS, INC. PAGE: 220719-4 a rr MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 11.12.116 PIPING INSULATIONS air 3.3 PIPING INSULATION SCHEDULE PIPE SIZE THICKNESS INSULATION TYPE INCH INCH Glass Fiber Insulation: 't' Domestic Hot Water Up to 2" 1" 2-1/2" to4" 1 - 1/2" Over 4" 2" - Cold Water Up to 4" 1" 4" and Over 1 " Piping Exposed to Freezing or Semi-Heated Spaces All Sizes 1 —Yz" 3.4 FITTINGS,VALVES,STRAINERS,FLANGES,HEADERS,INSULATION COVERS 3.4.1 General: Provide all fitting insulation covers for pipe fittings, grooved end couplings, and for pipe flanges. 3.4.2 Exposed Work: Provide "Zeston PVC" insulated fitting covers applied after pipe insulation is installed. A pre-cut "Hi-Lo Temp" insulation insert, conforming to the UL 25/50 rating, shall be snugly tucked around the fitting making sure the fitting is covered with the full thickness of insulation. +rr 3.4.2.1 All others, provide covering in pad form, constructed as follows: Use 1-inch thick Owens- Corning Fiberglas TIW Glass Wool, Type I, non-oiled, fully enclosed on all sides and edges within tight-weave canvas jacket. Attach Bergen hooks around edges of pad. Fit pad to device with edges tightly butted and secure with copper wire laced between hooks. Provide vapor seal where vapor seal is required for adjacent insulation. rr 3.4.3 The one-piece UL 25/50 rated PVC fitting cover shall be snapped over the insulated fitting and secured with tack fasteners, staples,or tape. 3.4.4 Concealed Downspout Piping and Domestic Cold Water Piping: Zeston fitting covers, stapled, and adhesive sealed to adjacent vapor barrier jacket, same as specified for exposed work. r�r 3.4.5 Concealed Piping Other Than Domestic Water: Build up insulation with asbestos-free insulation cement for hydrous calcium silicate pipe insulation; Owens-Corning T1 W glass fiber wool-type wrap or "Hi-Lo Temp" insert,to full thickness of adjacent pipe insulation; cover with Zeston fitting covers stapled to adjacent insulation jacket, or use 3" wide canvas and lagging adhesive. 3.4.6 Gauge Lines: Insulate to the gauge shutoff valve. rr 3_5 PIPE HANGERS J+r 3.5.1 Do not allow pipes to come in contact with hangers. gie BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220719-5 rr �rw MEADOW CREST PLAYGROUND SECTION 220719 PROJECT NO. 11.12.116 PIPING INSULATIONS rr 3.6 RUNOUTS 11111 3.6.1 Runouts Indicate pipe insulation from main system to fixture for not more than 12'-0" in length and less than 2" pipe. END OF SECTION u�r rr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 220719-6 avo MEADOW CREST PLAYGROUND SECTION 221116 PROJECT NO. 11.12.116 DOMESTIC WATER PIPE AND FITTINGS err PART 1 - GENERAL 1_1 GENERAL 1.1.1 Includes,but not limited to, general piping installation procedures for domestic water systems. 1.2 RELATED SECTIONS 1.2.1 General Conditions, Division 01 1.2.2 Section 200000—General Mechanical Requirements. 1.2.3 Section 220529—Hangers and Supports for Plumbing Equipment 1.2.4 Section 221119—Piping Specialties 1.2.5 Section 221300—Soil, Waste, and Vent Piping System 1_3 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.3.1 Pipe 1.3.2 Solder 1.4 REFERENCES it 1.4.1 ASTM E814: Fire Tests of Through-Penetration Fire Stops. 1.4.2 UL 1479: Through-Penetration Fire Stop Systems. PART 2 - PRODUCTS 2_1 PIPE (FOR POTABLE SYSTEMS) 2.1.1 Type "K" Copper(for piping under ground) 2.1.2 Type "L" Copper(for piping above ground) 2.1.3 Schedule 80 PVC (for piping exterior to the building and up to 36"below grade) MN BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 221 116- 1 mr MEADOW CREST PLAYGROUND SECTION 221116 PROJECT NO. 11.12.116 DOMESTIC WATER PIPE AND FITTINGS ink PART 3 - EXECUTION 3.1 INSTALLATION OF PIPING AND FITTINGS Eli 3.1.1 Furnish and install complete system of piping, valved as indicated or as necessary to completely control entire apparatus. Pipe drawings are diagrammatic and indicate general location and connections. Piping may have to be offset, lowered, or raised as required or directed at site. This does not relieve this 111 Division from responsibility for proper erection of systems of piping in every respect. 3.1.2 Properly make adequate provisions for expansion,contraction, slope, and anchorage. 3.1.2.1 Cut piping accurately for fabrication to measurements established at site and work into place without springing or forcing. so 3.1.2.2 Remove burr and cutting slag from pipes. 3.1.2.3 Make changes in direction with proper fittings. No 3.1.3 Install piping at such heights and in such a manner as to not interfere with removal of other equipment, ducts, or devices, or block access to doors, windows, or access openings. Provide accessible, ground joint unions in piping at connections to equipment. lig 3.1.4 Coordinate installation of piping with all trades which are affected by installation to avoid conflicts. um 3.1.5 Consult all drawings for location of pipe spaces, ducts, electrical equipment, ceiling heights, door openings, window openings, and other details and report discrepancies or possible conflicts to Architect/Engineer before installing pipe. 3.1.6 Allow sufficient clearances for installation of pipe insulation in thickness specified. If interferences occur,reroute piping to accommodate insulation. 3.1.7 Make connections of dissimilar metals with insulating couplings. (di-electric unions). See Section 221119— Piping Specialties. rrr 3.1.8 Cap or plug open ends of pipes and equipment to keep dirt and other foreign materials out of system. Do not use plugs of rags,wool,cotton waste,or similar materials. isi 3.1.9 Do not use reducing bushings, street elbows,or close nipples. 3.1.10 T-drill procedure for connecting pipes will not be allowed. 3.1.11 Wrought tees shall be used on all branch piping and branch to main connections. so 3.1.12 Bury water piping 6 inches minimum below bottom of slab and encase in 2 inches minimum of sand. Nib 3.1.13 Solder for potable water pipes shall be of a lead free type and shall conform to current UPC standards for solder and all local code requirements. BLRB ARCHITECTS 04/02/13 B BCE ENGINEERS, INC. PAGE: 221116-2 rr MEADOW CREST PLAYGROUND SECTION 221116 PROJECT NO. 11.12.116 DOMESTIC WATER PIPE AND FITTINGS IN 3.1.13.1 Approved Manufacturers: IN 3.1.13.1.1 Canfield Iw 3.1.13.1.2 J.W. Harris 3.1.13.1.3 Aqua-Clean 3.1.14 All piping in finished areas shall be installed concealed unless specifically noted otherwise. 3.1.15 Pitch all piping and provide drain valves so that all piping and equipment can be drained. IN 3.1.16 Provide escutcheons where pipe passes through walls, floors, or ceilings. 3.1.17 Install all exposed piping parallel to the closest wall and in a neat, workmanlike manner. WM 3.2 DOMESTIC WATER PIPING TESTS AND STERILIZATION 3.2.1 Tests: As the work progresses each section of the water system shall be tested under a 125psi hydrostatic test held for 24 hours without reduction of pressure. If any leaks occur or piping or valves are found to be defective, same shall be removed and new material installed, and the test made on that section again until all material is found to be satisfactory. Such test shall be made in the presence of the Owner's Representative. 3.2.2 Flushing and Chlorination: All piping shall be flushed to remove all dirt and foreign material. After flushing, all piping shall be chlorinated in accordance with regulations of the Washington State Health Dept. After the contact period, the chlorine shall be drained from the piping and the piping flushed. The Contractor will take samples for bacteriological analysis. The water analysis must be satisfactory before piping is acceptable. rN END OF SECTION IN IN In IN BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 221116-3 rr MEADOW CREST PLAYGROUND SECTION 221300 PROJECT NO. 11.12.116 SOIL, WASTE& VENT PIPING SYSTEM rr PART 1 - GENERAL 1.1 GENERAL 1.1.1 Includes but not limited to: 1.1.1.1 Furnish and install soil, waste, and vent piping systems within building and connect with outside utility lines 5 feet out from building, or as indicated. nr 1.1.1.2 Perform excavating and backfilling required by work of this Section. 1_2 RELATED SECTIONS 1.2.1 General Conditions, Division 01 1.2.2 Section 200000—General Mechanical Requirements 1.2.3 Section 220529—Hangers and Supports 1.2.4 Section 221116—Domestic Water Pipe and Fittings 1.2.5 Section 222000— Excavation and Backfill for Mechanical Underground Utilities 1_3 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.3.1 Pipe rr 1.3.2 Above ground couplings ■ 1.3.3 Below ground couplings PART 2 - PRODUCTS 2.1 CAST IRON SOIL WASTE AND VENT PIPING 2.1.1 Each piece of cast-iron pipe shall bear the manufacturer's identification mark and shall be certified by the manufacturer to have met the requirements of the latest ASTM specifications. 2.1.1.1 Above Ground Waste and Vent: All soil,waste and vent piping above ground shall be: 2.1.1.1.1 Hubless cast iron pipe and fittings: Conform to ASTM A888 and CISPI 301. rri 2.1.1.1.1.1 Approved Manufacturers: BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 221300- 1 Ali riu MEADOW CREST PLAYGROUND SECTION 221300 PROJECT NO. 11.12.116 SOIL, WASTE&VENT PIPING SYSTEM rue 2.1.1.1.1.1.1 AB&l 2.1.1.1.1.1.2 Charlotte 2.1.1.1.1.1.3 Tyler bau 2.1.1.1.1.2 Couplings for hubless cast iron pipe and fittings(UWP- 801E, and ASTM C-1277) consisting of a stainless steel coupling with Neoprene gaskets conforming to ASTM C 564. Federal Specification UWP - 801. grub 2.1.1.1.1.3 Approved Above Ground No Hub Couplers: bib 2.1.1.1.1.3.1 Ideal - Heavy Duty 2.1.1.1.1.3.2 Mission - Heavy Weight 2.1.1.2 Below Ground Waste and Vent: All soil and waste vent below ground shall be: 2.1.1.2.1 Hubless Cast Iron Pipe and Fittings: Conform to ASTM A 888 &CISPI 301. 2.1.1.2.1.1 Approved Manufacturers: 2.1.1.2.1.1.1 AB&l 2.1.1.2.1.1.2 Charlotte wu 2.1.1.2.1.1.3 Tyler 2.1.1.2.2 Cast iron couplings with neoprene gaskets ASTM C 564 and stainless steel bolts and 1111 nuts: MG couplings. Torqued to 175-inch lbs. 2.1.1.2.3 No Hub Coupling: Couplings shall be constructed of 304 type stainless steel with a Nu minimum shield thickness equal to 0.015. Shield shall have a minimum width of 3" for pipe sizes 1- 1/2" to 4" and 4" width for pipe sizes 5" to 10". Sealing bands shall have a minimum thickness of 0.026 and require a minimum of 80-inch lbs. torque per band. Neoprene gasket shall meet ASTM C 564. 2.1.1.2.4 Approved No Hub Coupling Manufacturers: 2.1.1.2.4.1 Clamp-All Corp. - HI-TORQ 80 2.1.1.2.4.2 Husky - SD-4000 2.1.1.2.4.3 Belowground Waste and Vent Beyond 5' From The Building: All soil, waste, and vent piping below ground shall be: 2.1.1.2.4.3.1 Plastic piping: ANSI/ASTM D2665-94(PVC). 2.1.1.2.4.3.2 Fitting: Comply with current UPC. mot BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 221300-2 ail MEADOW CREST PLAYGROUND SECTION 221300 PROJECT NO. 11.12.116 SOIL, WASTE& VENT PIPING SYSTEM arr PART 3 - EXECUTION 3_1 INSTALLATION 3.1.1 Do not caulk threaded work. 3.1.2 Place cleanouts as follows: rir 3.1.2.1 Where shown on Drawings and near bottom of each stack and riser. rrir 3.1.2.2 At every 90 degree change of direction for horizontal lines. 3.1.2.3 Every 100 feet of horizontal run. rr 3.1.2.4 Extended cleanout to accessible surface. Do not place cleanouts in carpeted floors. In such locations, use wall type cleanouts. 3.1.3 Each fixture and appliance discharging water into sanitary sewer or building sewer lines shall have seal trap in connection with complete venting system so gases pass freely to atmosphere with no pressure or siphon condition on water seal. 3.1.4 Vent entire waste system to atmosphere. Discharge vent pipe minimum 14 inches above roof. Join lines together in fewest practicable number before projecting above roof. Set back vent lines so they will not pierce roof near edge or valley. 3.1.5 Use torque wrench to obtain proper tension in cinch bands on above ground hubless cast iron pipe. Butt ends of pipe against centering flange of coupling. i.r 3.1.6 Flash pipes passing through roof with 4 lbs. per sq. ft. of sheet lead flashing (or as shown on the plan)fitted snugly around pipes and caulk between flashing and pipe with flexible waterproof compound. Extend lead up and turn in to pipe for min. 1"/vent. Flashing base shall be at least 24 inches square. 3.1.7 Grade soil and waste lines within building perimeter 1/4 inch fall per ft. in direction of flow. i.r 3.1.8 For exterior waste piping under parking areas or roads use ductile iron or SDR 35 PVC (DWV rated)if pipe is buried less than 5'-0" below finish paving or grade. am 3_2 FIELD QUALITY CONTROL •■ 3.2.1 Before piping is covered, conduct tests for leaks and defective work. Notify Architect prior to testing. Correct leaks and defective work. Fill waste and vent system to roof level with water, 10 feet minimum, and show no leaks for two hours. END OF SECTION BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 221300-3 arr MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES PART 1 - GENERAL 11 SUMMARY 1.1.1 Includes, but not limited to, furnishing and installing specified plumbing fixtures. Provide and install soft flow aerators on all lavatories and sinks (service sinks not included). See 3.03 for energy conservation devices. �wr 1.2 RELATED SECTIONS rr 1.2.1 General Conditions, Division 1 1.2.2 Section 200000—General Mechanical Requirements 1.2.3 Section 221116—Domestic Water Pipe and Fittings 1_3 QUALITY ASSURANCE (REGULATORY REQUIREMENTS) 1.3.1 Installation shall meet requirements of local codes and manufacturer's instructions. 1.4 SUBMITTAL REQUIREMENTS OF THIS SECTION r 1.4.1 All plumbing fixtures in this section and called out on the plans. 1.4.2 Floor drains. ilia 1.4.3 Clean outs. 1.4.4 Hydrants. 1.4.5 Hose Bibbs. PART 2 - PRODUCTS 2_1 FIXTURES 2.1.1 See Schedule on Drawings. All BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000- I ..r tr. MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES mei 2.2 FLOOR DRAINS (F.D.) Ire 2.2.1 Cast iron body floor drain, with 5" nickel bronze adjustable strainer head, vandal proof screws, and trap primer connections. Size outlet to match pipe size shown on drawings. Where used for shower drain, provide with chrome plated strainer. Furnish with 6" diameter strainer and funnel where indicated. so 2.2.2 Cast iron body floor drain, with Type 'N' 7" diameter, nickel bronze grate, vandal proof screws, and trap primer connections. Size outlet to match pipe size shown on drawings. Use in mechanical rooms and utility spaces. 2.2.3 Approved Manufacturers: J.R. Smith, Wade so 2.3 CLEANOUTS 2.3.1 Finish Floors: 2.3.1.1 Smith#4023X 2.3.1.2 Wade#W-6000 2.3.1.3 Josam#56010 ist 2.3.2 Resilient Flooring: re 2.3.2.1 Smith#4143 2.3.2.2 Wade#W-6000-T 2.3.2.3 Josam#56010-12 2.3.3 Finished Wall: tr 2.3.3.1 Smith#4472 ri 2.3.3.2 Wade#W8460R 2.3.3.3 Josam#58890 S 2.3.4 Exposed Drain Lines: 2.3.4.1 Smith#4402 rir 2.3.4.2 Wade#W8560A 2.3.4.3 Josam #58510 2.3.5 General Purpose: 2.3.5.1 Smith#4402 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 224000-2 rir MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES rr 2.3.5.2 Wade#W8550A 2.3.5.3 Josam#58500 2.4 HYDRANTS 2.4.1 Wall Hydrants: Approved freeze-proof type with integral anti-siphon device: rr 2.4.1.1 Zurn: Z-1310 wr 2.4.1.2 Wade: W-8620 with union elbow 2.4.1.3 Smith: 5609 2.4.1.4 Josam: 71050 2.4.1.5 Woodford: 65 2.4.1.6 Jones Spec: 51010 ®,r 2.4.2 Wall Box Hydrants: Freezeproof type with integral anti-siphon device: 2.4.2.1 Jay R. Smith: 5509QT 2.4.2.2 Zurn: Z-1300 2.5 HOSE BIBBS 2.5.1 Approved types with integral vacuum breaker, chrome plated face and loose key. J.R. Smith FIG 5618. PART 3 - EXECUTION 3.1 GENERAL ar 3.1.1 Installation: Install fixtures including traps and accessories with accessible stop or control valve in each hot and cold water branch supply line. 3.1.2 Mounting: Verify mounting height with architectural elevations. Architectural elevations take precedent over these heights. 3.1.2.1 ADA Fixtures (Fixture heights shown herein are superseded by fixture heights indicated in the architectural documents.): 3.1.2.1.1 Toilet: 17"to 19"to top of seat. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000-3 rw MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES rrr 3.1.2.1.2 Urinal: 16" from floor to bottom lip. 3.1.2.1.3 Lavatory: 29" minimum clearance under fixture, maximum of 33" to rim. 3.1.2.1.4 Drinking Fountain: Bubbler height shall be less than 36" from finished floor with 27" minimum clearance underneath. 3.1.2.1.5 Shower Unit: Control height shall be 40" from finished floor. arr 3.1.2.2 Standard Fixtures (Fixture heights shown herein are superseded by fixture heights indicated in the architectural documents.) 3.1.2.2.1 Elementary WC: 12"to rim from floor(Upon approval by District) 3.1.2.2.2 WC: 14"to 16"to rim from floor. 3.1.2.2.3 Elementary Urinal: 17" from floor to bottom lip. 3.1.2.2.4 Urinal: 24" from floor to bottom lip. 3.1.2.2.5 Lavatory: 29" from floor to top of apron. 3.1.2.2.6 Drinking Fountain: Bubbler height shall be a minimum of 38" from finished floor. 3.1.3 Make fixture floor connections with approved brand of cast iron floor flange, soldered or caulked securely to waste pipe. 3.1.4 Make joints between fixtures and floor flanges tight with approved fixture setting compound or gaskets. o 3.1.5 Caulk between fixtures and wall and floor with white butyl rubber non-absorbent caulking compound. Point edges. 3.1.6 Install and connect all P-100 fixtures. Provide chrome plated brass waste, "Just" or equal. ■r 3.1.7 Provide concealed arm supports for wall mounted china lavatories. 3.1.8 All exposed metal shall be chrome-plated brass. 3.1.9 Provide concealed heavy steel stanchion and supporting plate for lavatories and urinals. 3.1.10 Provide floor-mount fixture support for wall-hung water closets, and with 2" no-hub auxiliary wr inlet at each location of back to back water closet and urinal. 3.1.11 Provide flush valve supply support on all WC and urinal carriers. 3.1.12 Provide rear anchor support for all heavy-duty WC carriers. ma 3.1.13 All fixture mounting heights shall be verified or determined on site prior to installation. Coordinate with architectural drawings. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000-4 as r. MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES �.r 3.1.14 Install (1) bellows type water hammer arrester (at each quick acting valve). Jay R. Smith Hydrotrol, Sioux Chief Manufacturing, Zurn Shoktrol or approved equal and for branch supply lines up to 20' in length serving plumbing fixture groups. Install water hammer arrester between last two fixtures, for branch supply lines exceeding 20' in length, serving plumbing fixture groups install water hammer arrester between middle two fixtures and last two fixtures, sizes as indicated in the table below. Water Hammer Arrester Table rri Fixtures Units Water Hammer Arrester Size 1-11 JR Smith#5005 (4" High Shell) 12-32 JR Smith#5010 (5" High Shell) 33-60 JR Smith#5020 (6" High Shell) 61-113 JR Smith#5030 (7" High Shell) 114-154 JR Smith#5040 (8" High Shell) 3.1.15 Provide trap primer and connection to p-trap of showers, floor sinks, floor drains, and service sinks. 3.1.16 ADA showers shall be installed with entrance lip flush with finish floor. 3.1.17 On ADA water closets, provide flush valve handle or tank handle on side facing wheelchair turn around. 3.1.18 All ADA lavatory P-trap and angle stop assemblies shall be insulated with institutional A.D.A. insulator kit as manufactured by E.B.C. or equal. Abrasion resistant exterior cover shall be smooth and have 1/8" wall minimum over cushioned foam insert. Fasteners shall remain substantially out of sight. Use part 500RHS on offset P-trap if required. 3.1.19 Sensor Type Fixtures: Mechanical contractor to coordinate with electrical contractor for ,r. installation of all infra-red sensor type fixtures. Transformer kit provided and installed by mechanical contractor, all electrical connectors,wire connections, and testing by electrical contractor. 3.1.20 Hose Bibb: Install one (1)hose bibb in each toilet room with 2 or more water closets, urinals or a are combination there of,mount at 18" under one lavatory. 3.1.21 Wall Hydrant: Install at 18" above finished grade, unless otherwise indicated. ON 3.1.22 Lavatory and Hand Sink Faucets: Set hot water delivery temperature at 105°F. Faucets without a mechanical temperature limit stop shall be provided with a point of use thermostatic mixing valve. imp 3.2 ADJUSTING,CLEANING Mil 3.2.1 Polish chrome finish at completion of Project. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000-5 mu MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES rim 3.2.2 Remove all manufacturers' labels tags, and protective plastic. Nib 3.2.3 Clean all fixtures. 3.2.4 Polish floor drain covers. 3_3 ENERGY CONSERVATION moo 3.3.1 Provide flow controls on all fixtures to limit flow as indicated: Fixture Standard Flushometer-valve WC 1.6 gal. (6.0 liters)per flush Urinals-sensor operated flushometer 1.0 gal. per flush Showerheads 2.5 gal. (9.5 liters)per minute Lavatory Faucets(metered) 2.5 gal. (9.5 liters) per minute Lavatory Faucets(non metered) 0.5 gal. (1.89 liters)per minute Kitchen Faucets 2.5 gal. (9.5 liters)per minute Public Lavatory Faucets (other than self-closing) 0.5 gal. (1.89 liters)per minute Replacement Aerators 2.5 gal. (9.5 liters)per minute 3_4 APPROVED MANUFACTURERS 3.4.1 Supply Stops: IOW 3.4.1.1 Chicago Faucets 3.4.1.2 Engineers Brass Company(EBC) 3.4.2 Faucets: 3.4.2.1 Chicago Faucets rru 3.4.3 Waste: 3.4.3.1 EBC 3.4.3.2 Just 3.4.3.3 Elkay 3.4.4 Traps: 3.4.4.1 EBC sit 3.4.4.2 Just BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000-6 ru srr MEADOW CREST PLAYGROUND SECTION 224000 PROJECT NO. 11.12.116 PLUMBING FIXTURES Aim 3.4.4.3 Elkay 3.4.4.4 Dearborn Brass 3.4.5 Flush Valves: 3.4.5.1 Sloan 3.4.5.2 Zurn 3.4.5.3 Geberit go 3.4.5.4 Toto 3.4.6 Stainless Steel Lavatories and Water Closets: ion 3.4.6.1 Bradley 3.4.6.2 Willoughby Industries 3.4.7 Drinking Fountains: as 3.4.7.1 Halsey Taylor rr 3.4.7.2 Haws 3.4.7.3 Oasis 3.4.7.4 El Kay END OF SECTION tar aim am so �.. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 224000-7 rr MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR aft HVAC PIPING & EQUIPMENT PART 1 - GENERAL 1_1 GENERAL 1.1.1 Includes: u�r 1.1.1.1 Pipe Hangers and Supports err 1.1.1.2 Duct Hangers and Supports 1.1.1.3 Mechanical Equipment Anchors and Supports 1.2 RELATED SECTIONS 1.2.1 All Division 23 using piping, ductwork,equipment and air terminals. 1_3 QUALITY ASSURANCE 1.3.1 Pipe Hanger Standards: (MSS) Manufacturers Standardization Society Standards SP-58-2002, SP-89-2003, and SP-69-2003. 1.3.2 All methods, materials, and workmanship shall conform to the International Building Code(IBC) and International Mechanical Code(IMC), as amended and adopted by the authority having jurisdiction. 1.4 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.4.1 Hangers. 1.4.2 Struts. 1.4.3 Anchors. + 1.4.4 Shop drawings are required for all equipment supports and fabricated supports or assemblies. dal PART 2 - PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS 2.1.1 Hangers and Supports: Elcen, Grinnell, B-Line Systems, Unistrut, Michigan, Tolco, PHD. 2.1.2 Anchors: Rawplug, Phillips, Hilti, Michigan. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 230529- 1 MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR HVAC PIPING & EQUIPMENT 2.2 GENERAL HANGERS AND SUPPORTS Nib 2.2.1 Hanger Rods: Threaded hot rolled steel, electro-galvanized or cadmium plated. Hanger rods shall be sized so that the total load (including pipe or duct, insulation, hangers, and fluid) does not exceed the following: rr Nominal Rod Diameter Maximum Load 3/8 Inch 610 Pounds 1/2 Inch 1130 Pounds 2.2.2 Hanger Straps: Galvanized steel. Straps shall be sized so that the total load does not exceed the following: Strap Size Maximum Load 1"x 22 Gauge 230 Pounds 1"x 20 Gauge 290 Pounds 1"x 18 Gauge 380 Pounds 1"x 16 Gauge 630 Pounds 2.2.3 Beam Attachments: Shall be of the following type: Nis MSS Type Elcen Figure No. Grinnel Figure No. 21 33, 34 131 22 67 66 23 29A 87 28 95 292,228 30 95 229 so 2.2.4 Anchors: Masonry anchors shall be Phillips wedge anchors, Phillips "Red Head" or Rawl "Saber- Tooth". 2.2.5 Steel: Structural steel per ASTM A36. 2.2.6 Wood: Shall be fire treated. IMO 2.3 PIPE HANGERS AND SUPPORTS rr 2.3.1 All hangers used directly on copper pipe shall be copper plated or have a factory applied 1/16- inch thick(minimum)plastic coating on all contact surfaces. is 2.3.2 All other hangers, supports, and hardware shall be cadmium plated or galvanized. 2.3.3 Fire sprinkler supports shall comply with NFPA-13. 2.3.4 Pipe Hangers and Supports: Shall be of the following type(numbers are 'MSS'): Maximum System Temperature Insulated Pipe Type 120 to 450 Degrees 1, 3, 7, 9, 10,41, 42, 43, 44,45,46, E 60 to 120 Degrees 1, 3, 7, 9, 10 33 to 59 Degrees 1, 3, 5, 7, 9, 10, 41, 42, 43,44,45,46, E BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 230529-2 4.10 MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR HVAC PIPING & EQUIPMENT 2.3.5 Vertical Pipe Supports: MSS Type 8 riser clamp (elcen Fig. 39 and 339; Grinnel Fig. 261 and 261 C). 2.3.6 Trapeze Hangers: Shall be constructed of carbon steel angles, channels, or other structural shapes with flat surface for point of support. Trapeze hangers shall be supported with hanger rods suspended from concrete inserts or approved structural clips. Provide a steel washer plate (Elcen Fig. 84 or equal) where hanger rod nuts bear on trapeze hanger. 2.3.7 Insulated Pipe Supports and Insulation Shields: 2.3.7.1 Insulation material at pipe support shall consist of expanded perlite insert with flame resistant jacket of nylon reinforced kraft paper bonded to aluminum foil cover on insulation, with sheet metal shield. Expanded perlite shall have no more than 5% deformation at 100 psi and a thermal conductivity no more than 0.32 Btu/hr./sq. ft./degree F/1-inch thick. 2.3.7.2 Expanded perlite insert shall be same thickness as adjoining pipe insulation and sized to match pipe in which it is used on. See Section 220719 for insulation sizes. 2.3.7.3 Provide shield per Section 221119 Piping Specialties. 2.3.7.4 Manufacturer: Michigan Hanger Company, Model Nos. 1031 and 4031. rr 2_4 DUCT HANGERS AND SUPPORTS wr 2.4.1 Hangers: As shown in SMACNA HVAC Duct Construction Standards. 2.4.2 Vertical Duct Supports at Floor: 1-1/2" x 1-1/2" x 1/8" (minimum) galvanized steel angle and to support ducts, as shown in SMACNA HVAC Duct Construction Standards Figure 4-6. For ducts over 30 inches wide, provide riser reinforcing with hanger rods between the riser support and riser reinforcing. 2.4.3 Vertical Duct Supports at Wall: 1-1/2" x 1/8" (minimum) strap or 1-1/2" x 1-1/2" x 1/8" (minimum)angle bracket and as shown in SMACNA HVAC Duct Construction Standards Figure 4-7. 2.4.4 Hanger Attachments to Structure: As shown in SMACNA HVAC Duct Construction Standard Figures 4-1, 4-2, 4-3 to suit building construction and as allowed on structural drawings. Where C- clamps are provided,retainer clips shall be used. Friction beam clamps shall not be used. 2.4.5 Hanger Attachments to Ducts: As shown in SMACNA HVAC Duct Construction Standards Figure 4-4. PART 3 - EXECUTION 3.1 INSTALLATION-GENERAL 3.1.1 Provide all necessary bolts, nuts, washers, turnbuckles, rod connectors, and any other Hill miscellaneous accessories required for the support and anchoring of all pipes, ducts, and mechanical equipment. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 230529-3 MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR HVAC PIPING & EQUIPMENT ma 3.1.2 Install steel or wood backing in walls (anchored to studs) as required to provide support for items hung from walls. 3.1.3 Install concrete inserts and anchors in accordance with manufacturer's instructions. is 3.1.4 All welded steel support assemblies shall have a power wire brush and primer paint finish. 3.1.5 Attach to building structure as shown on drawings(reference structural drawings). 3.1.6 Maximum spans between piping supports may be significantly less than the maximum spans allowed herein due to structural limitations of allowable loads on hangers. The most restrictive criteria governs. Reference structural drawings. Mt 3_2 INSTALLATION OF PIPE HANGERS AND SUPPORTS 3.2.1 Pipe which is not run underground, shall be adequately anchored to the structure to prevent sagging and to keep pipe in alignment. 3.2.2 All pipe supports shall be provided with a means of adjustment for the aligning and leveling of the pipe after installation. Ii 3.2.3 Installation and sizing of pipe supports and accessories shall be in accordance with the manufacturer's recommendations and standard MSS SP-89 and MSS SP-69, UBC 9-1 for fire protection piping, UPC,and IMC. 3.2.4 Provide supports at each change in direction of piping; and on cast iron soil pipe at each branch connection and at each side of concentrated loads. 3.2.5 Where mechanically coupled piping is used, a hanger shall be placed within 2 feet on each side of couplings,with hanger spacing in no case to exceed the following: Maximum Span Mechanically Nominal Pipe Diameter Coupled Piping 3/4 to 1 Inch 7 Feet 1 1/4 to 1 '/2 Inch 7 Feet rs, 2 Inches 10 Feet 2 1/2 Inches 10 Feet 3 Inches and Larger 12 Feet NOTE: Manufacturer's support instructions shall be used where it is more restrictive than the above. Above is for rigid coupled piping systems. Follow manufacturer's requirements for flexible piping systems, except that in no case is spacing to be more than the above. 3.2.6 Steel Pipe: Maximum spacing between supports: Nominal Pipe Diameter Maximum Span Steel Pipe so 1/2 Inch 6 Feet 3/4 to 1 Inch(3/4 Inch to 1 Inch*) 8 Feet 1 1/4 to 2 1/2 Inch(1 '/4 Inch or Larger*) 10 Feet 3 Inches and Larger 12 Feet *Gas piping. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 230529-4 MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR HVAC PIPING & EQUIPMENT 3.2.7 Copper Tubing: Maximum spacing between supports: Nominal Tubing Diameter Maximum Span Copper 'A Inch 5 Feet 3/4to 1 '/4Inch 6Feet 1 '/2 to 2 /2 Inch 8 Feet 3 Inches and Larger 10 Feet 3.2.8 No-Hub Cast Iron Soil Pipe: Shall be supported at every other joint, except when the pipe length between joints exceeds 4 feet, in which case the pipe shall be supported at each joint. Supports shall be provided at each horizontal branch connection and shall be adjacent to couplings. ell 3.2.9 Four or more pipes running parallel may be supported on trapeze hangers provided the slopes of such pipes allow use of common trapeze. Where trapeze width exceeds 24 inches, provide three (3) hanger rod supports. 3.2.10 Provide additional supports at concentrated loads (such as valves, in-line pumps, etc.) on each side of the load. Such supports are in addition to the ones otherwise required. 3.2.11 Vertical Piping Supports: Support piping at each floor line with pipe clamps and at intermediate points as required to prevent excessive pipe movement and so as to comply with the maximum spacings cited above. Support all pipe stacks at their bases with a concrete pier or suitable hanger. For vertical pipe drops which occur away from a wall or similar anchoring surface, provide angled bracing from nearest structure to provide rigid anchoring of pipe drop. ell 3.2.12 Insulated Pipe Supports and Insulation Shields: Protect insulated pipe at point of support with pipe insert and shield as required by the following table: Nominal Pipe Insulation Length Shield Length Minimum Shield Diameter in Inches in Inches in Inches Gauge '/2to2 6 6 20 2 'Ato3 '/2 6 6 18 4to5 9 8 18 6 to 10 9 8 16 virs Such supports shall be in place at the time of installing pipe. 3.2.13 Underground Pipe: Shall be evenly supported on approved bedding materials, as specified for the lei type of piping being used. Such bedding and backfilling shall be as specified in Section 222000. 3.3 INSTALLATION OF DUCT HANGERS AND SUPPORTS rr 3.3.1 Provide anchors and supports for all ductwork. ars 3.3.2 Rectangular Duct: Supports and hangers shall be of size and spacing as shown in SMACNA HVAC Duct Construction Standards for the appropriate class of duct. (Hangers maximum allowable loads shall not be as shown in SMACNA Tables but shall be as specified in these specifications.) lie 3.3.3 Round Duct: Supports and hangers shall be of size and spacing as shown in SMACNA HVAC Duct Construction Standards for the appropriate class of duct. elel BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 230529-5 rr MEADOW CREST PLAYGROUND SECTION 230529 PROJECT NO. 11.12.116 HANGERS & SUPPORTS FOR HVAC PIPING & EQUIPMENT ,, 3.3.4 Maximum Hanger Spacing (provided duct gauge and reinforcement comply with SMACNA Standards for such spacing): Duct Area Maximum Spacing Up to 4 sq. ft. (27" Diameter) 8 Feet 4.1 to 10 sq. ft. (28"to 42" Diameter) 6 Feet ifs 10.1 sq. ft. and up(43" Diameter and up) 4 Feet 3.3.5 Provide supports at each change in direction of duct. Locate hangers at inside and outside corners of elbows,or at each end of fitting, on each side. 3.3.6 Provide additional supports at each side concentrated loads (such as modulating dampers, duct heaters, sound attenuators, etc.) 3.3.7 Provide supports for exterior ductwork per SMACNA HVAC Duct Construction Standards or as detailed on the drawings. 3.4 INSTALLATION OF MECHANICAL EQUIPMENT ANCHORS AND SUPPORTS 3.4.1 Provide anchoring and supports for all mechanical equipment. 3.4.2 Heating, Ventilating and Air Conditioning equipment where suspended from structure shall be supported per SMACNA HVAC Duct Construction Standards or as shown on the drawings. 3.4.3 Roof mounted equipment shall be installed on roof curbs provided with the equipment (unless indicated otherwise). Such equipment shall be anchored to the curb, with the curb anchored to the building structure. rri 3.4.4 Equipment shall be supported and anchored in such a way so that no equipment vibration is transmitted to the building structure. 3.4.5 Added supports and bracing shall be provided per Section 220548. toit 3.4.6 Provide curbing as shown on drawings and as required to support all mechanical equipment. END OF SECTION rri err r�r BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 230529-6 r�r MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.1 1 6 STEEL DUCTWORK wr PART 1 - GENERAL om 1.1 GENERAL 1.1.1 Includes, but not limited to, furnishing and installing above-ground ductwork and related items specified below and shown on Drawings. 61111 1.2 RELATED SECTIONS 1.2.1 General Conditions and Division 1 apply to this Section. 1.2.2 Section 200000 - General Mechanical Conditions 1.2.3 Section 220529- Hangers and Supports for Plumbing Equipment 1.2.4 Section 230713 - Equipment/Ductwork Insulation 1.2.5 Section 233300- HVAC Specialties rr 1.3 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.3.1 Duct liner 1.3.2 Acoustic duct 1.3.3 Access doors 1.3.4 Volume dampers 1.3.5 Motorized dampers 1.3.6 Duct Silencers 1.3.7 Duct Sealers 1.3.8 Turning vanes rYr 1.4 DEFINITIONS 1.4.1 Duct Sizes: All duct dimensions shown are inside clear dimensions. Where inside duct lining is specified or indicated,duct dimensions are to the inside face of lining. r 1.4.2 Low Pressure System: Velocities less than 2,000 fpm and static pressure in duct 2 inches w.g. or less. ass BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 - 1 air lit MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK 1.4.3 Medium Pressure System: Velocities greater than 2,000 fpm or static pressure in duct up through 6 inches w.g. 1.4.4 High Pressure System: Velocities greater than 2,000 fpm or static pressure in duct over 6 inches w.g. and up to 10 inches w.g. , „ 1.4.5 Primary Duct System: Any duct between an air handler and a terminal (capable of heating and/or cooling) in a variable air volume or induction terminal system. 1.4.6 Gauges: Steel sheet and wire are U.S. Standard Gauge; aluminum sheet is Brown and Sharpe Gauge. PART 2 - PRODUCTS 2_1 DUCTS 2.1.1 Fabricate and support in accordance with SMACNA HVAC Duct Construction Standards - 'al Metal, except as indicated. Fabricate of zinc-coated lock-forming quality steel sheets meeting requirements of ASTM A 527-85, "Specification for Sheet Steel Zinc Coated (Galvanized) by the Hot- Dip Process, Lock Forming Quality", with G 60 coating. 2.1.2 Construct T's, bends, and elbows with radius of 1-1/2 times width of duct on centerline. Where not possible, provide turning vanes. rri 2.1.3 Increase duct sizes gradually,not exceeding 30° divergence and 45° convergence. 2.1.4 Use crimp joints with or without bead for joining round duct sizes 8 inches(200 mm) and smaller with crimp in direction of airflow. 2.1.5 Kitchen Hood Exhaust Ductwork: Fabricate in accordance with NFPA 96. 11." 2.2 DUCT JOINTS rrr 2.2.1 General: Duct with sides or diameter up to and including 36 inches shall be as scheduled below. Required Minimum Max. Side Type of Transverse Bracing nat Inches Metal Gauges Steel, Joint Connections Required U.S. Standard Gauge Under 13" 26 S-drive, pocket or bar None slips on 7 - 10" centers 13" to 24" 24 S-drive,pocket or bar None slips on 7-10" centers a„ S-drive, 1" pocket or 1" 1"xl"xl/8" 25"to 30" 24 bar slips on 7'-10" angles 4' from centers joints BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -2 rr► MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK Required Minimum Max. Side Type of Transverse Bracing Inches Metal Gauges Steel, Joint Connections Required U.S. Standard Gauge Drive 1"pocket or 1"x l"xl/8" so 31"to 36" 22 1"bar slips on 7'-10" angles 4' from centers joints 2.2.2 Ducts with sides over 36 inches to 48 inches, transverse duct joint system by Ductmate/25, Nexus, or WDCI (Lite) (SMACNA "E" or"G" Type connection). so 2.2.3 Ducts 48 inches and larger, Ductmates/35, Nexus, or WDCI (Heavy) (SMACNA "J" Type connection). 2.2.4 Proprietary duct connections may be used on other sizes, Ductmate, WDCI, or equal. 2.3 ROUND DUCT 2.3.1 Fabricate of zinc-coated lock-forming quality steel sheets meeting requirements of ASTM A 653, "Specification for Sheet Steel Zinc Coated (Galvanized) by the Hot-Dip Process, Lock Forming Quality", so with G 60 coating. 2.3.2 Gauge Selection Table: Duct Maximum 2" w.g. Maximum 2"w.g. Diameter Static Positive Static Negative in Inches Spiral Seam Longitudinal Spiral ° Longitudinal Gauge Seam Gauge Seam Seam Gauge Gauge 3 thru 8 28 28 28 24 9 thru 14 28 26 26 24 15 thru 26 26 24 24 22 27 thru 36 24 22 22 20 37 thru 50 22 20 20 18 51 thru 60 20 18 18 16 61 thru 84 18 16 16 14 2.3.3 Provide insulation where required by the Insulation Schedule in Section 230713 - Equipment/Ductwork Insulation. so so err BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -3 Amormommor MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK w 2_4 SPIRAL DUCT 2.4.1 The outer pressure sheet shall be manufactured from galvanized steel meeting ASTM A 653 in the following minimum gauges: Nominal Size Solid Spiral Wound Duct Solid Welded Fitting Outer Range Outer Pressure Shell Pressure Shell 3"-12" 26 Ga. 20 Ga. 13"-24" 24 Ga. 20 Ga. 25"-34" 22 Ga. 20 Ga. 35"-48" 20 Ga. 18 Ga. 50"-58" 18 Ga. 16 Ga. Sri 2.5 FLEXIBLE EQUIPMENT CONNECTIONS 2.5.1 Provide flexible equipment connections between ductwork and equipment. See Section 233300 as - HVAC Specialties. 2.6 VOLUME DAMPERS 2.6.1 Fabricate in accordance with SMACNA HVAC Duct Construction Standards - Metal and Flexible, and as indicated. rw 2.6.2 Fabricate splitter dampers of same material and gage as duct to 24 inches (600 mm) size in either direction, and two gages heavier for larger sizes, secured with continuous hinge or rod, operated with minimum 1/4-inch (6 mm)diameter rod. 2.6.3 Fabricate single blade dampers for duct sizes to 9-1/2 x 30 inch (240 x 760 mm). 2.6.4 Fabricate multi-blade damper of opposed blade pattern with maximum blade sizes 12 x 72 inch (300 x 825 mm). Assemble center and edge crimped blades in prime coated or galvanized channel frame with suitable hardware. 2.6.5 Except in round ductwork 12 inches(300 mm) in diameter and smaller,provide end bearings. 2.6.6 Provide locking, indicating quadrant regulators on single and multi-blade dampers. Where width exceeds 30 inches (750 mm), provide regulator at both ends. 2_7 MOTORIZED DAMPERS 2.7.1 General: 2.7.1.1 Coordinate actuator type with Controls Contractor. 2.7.1.2 Make provision for damper actuators and actuator linkages to be mounted external of airflow. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -4 irr MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK ur 2.7.2 Damper Blades: tar 2.7.2.1 18-gauge or equivalent galvanized steel or aluminum with replaceable rubber blade edges, 9 inches wide maximum. Mr 2.7.2.2 End seals shall be flexible metal compression type. 2.7.2.3 Opposed blade type. 2.7.3 Approved Manufacturers: 2.7.3.1 Honeywell D641 2.7.3.2 Johnson D1300 2.7.3.3 Ruskin CD36 or CD60 2.7.3.4 Louvers& Dampers TSD400 erg 2.7.3.5 Arrow OBDAF-207 2.7.3.6 American Warming VC15C 2.7.3.7 Greenheck VCD-2100 rim 2_8 DUCT HANGERS 2.8.1 See Section 220529 - Hangers and Supports. r„ 2_9 DUCT SEALER 2.9.1 All duct systems shall be effectively sealed and leak tested with the total allowable leakage from the high and medium pressure ducts not to exceed 1% of the total system design airflow rate. Total allowable leakage from the low pressure ducts shall not exceed 5% of the total system design airflow rate. These requirements are in compliance with ASHRAE Standard#90A, and SMACNA High, Medium, and Low Pressure Duct Construction Standards (Seal Class A, B, C, D). All 1-inch and 1/2-inch pressure duct shall be sealed for Class'C'. 2.9.1.1 The description for the work to include the sealing of all seams,joints, fastener penetrations and connections. 2.9.1.2 The sealant used shall be Elastomeric tape, which shall consist of a pressure sensitive layer of Modified Butyl Rubber Duct Sealer laminated to a backing material which will conform to surface variations and irregular areas and will not harden, crack, or peel. The sealant shall provide an instant, positive bond which shall seal on contact, be waterproof, and shall conform with N.F.P.A. Class 1 requirements. rr 2.9.2 Exterior Ductwork: Sealant shall be HARDCAST FG-1402. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -5 err MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK a 2.10 DUCT CLOSURE COLLARS a 2.10.1 General: Closure collars shall provide closure of opening between duct and opening in element penetrated and shall abut tight up to and overlap duct and shall consist of rolled angle material (for round ducts) and welded framed angles (for rectangular/round ducts). rw 2.10.2 Size: Closure collars shall be sized to match duct/opening applied to and shall have minimum 2- inch overlap on duct side and 2-inch overlap at opening/ penetrated element side but shall completely cover opening in element penetrated with minimum 1-inch overlap to undisturbed element (i.e., wall, floor, etc.). 2.10.3 Material: Closure collars shall be fabricated of 20 gauge galvanized steel for ducts 15 inches a diameter and less and shall be fabricated of 18 gauge galvanized steel duct for all larger ducts and all square and rectangular ducts. a 2.11 TURNING VANES 2.11.1 Turning vanes may be either Contractor or factory fabricated. Factory fabricated vanes shall be Barber Colman "Airturns" or approved. 2.11.2 Vanes and runners shall be fabricated of minimum 24 gauge galvanized. a 2.11.3 Turning vanes shall comply with SMACNA HVAC Duct Construction Standards. For duct widths less than 19 inches, vanes may be single wall construction; for widths greater than 19 inches, r vanes shall be double wall "airfoil" type. 2.11.4 Turning vanes shall be equally spaced, parallel to each other,and securely attached to runners. 2.11.5 For elbows where the inlet and outlet dimensions are not the same, modify vane shape or angle to provide optimum turning. PART 3 - EXECUTION a 3_1 INSTALLATION r 3.1.1 Ducts: 3.1.1.1 Straight and smooth on inside with joints neatly finished unless otherwise directed. iss 3.1.1.2 Duct panels through 48-inch dimension having acoustic duct liner need not be crossbroken or beaded. a 3.1.1.3 Crossbreak unlined ducts and duct panels larger than 48 inch or bead 12 inches on center. 3.1.1.4 Securely anchor ducts to building structure with screws. 3.1.1.5 Brace and install ducts so they shall be free of vibration under all conditions of operation. BLRB ARCHITECTS 04/02/13 a BCE ENGINEERS, INC. PAGE: 233113 -6 itch MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK Ars 3.1.1.6 Round, horizontal ducts shall be hung with bands, which extend the entire perimeter of the duct. 3.1.1.7 Ducts shall be braced and guyed to prevent lateral or horizontal swing. �rw 3.1.1.8 Ducts shall not bear on top of structural members. 3.1.1.9 Make duct take-offs to branches, registers, grilles, and diffusers as detailed on Drawings. yr 3.1.1.10 Ducts shall be large enough to accommodate inside duct liner. Dimension shown on Drawings are net clear inside dimensions after duct liner has been installed. 3.1.1.11 Properly flash where ducts protrude above roof. 3.1.1.12 Install internal ends of slip joints in direction of flow. Make joints airtight using specified duct sealer. 3.1.1.13 Cover horizontal and longitudinal joints on exterior ducts two layers of Hardcast tape installed with Hardcast HC-20 adhesive according to Manufacturer's recommendations. 3.1.1.14 Ducts installed on mechanical space floor or walkway where ducts may be subject to abuse wr shall have Ductmate/35 or(heavy) SMACNA "J"type connection on all joints. 3.1.1.15 Contractor shall obtain a signed statement from kitchen Contractor verifying ceiling height and hood configuration prior to hood ductwork fabrication. 3.1.1.16 Provide acoustic duct where indicated on the plans. 3.1.1.17 All exposed ducts shall be spiral. 3.1.1.18 Quick fit duct shall be used where called out on the plans or as called out in specialty r�s exhaust specifications (i.e. 15895 Sawdust Collection System). 3.1.2 Turning Vanes: dill 3.1.2.1 Install turning vanes in all square duct turns, and at locations shown on drawings. 3.1.2.2 Securely attach turning vane runners to ductwork. rr 3.1.3 Flexible Connections: See Section 233300 - HVAC Specialties. rrr 3.1.4 Dampers: 3.1.4.1 Provide each take-off with an adjustable volume damper to balance that branch. se 3.1.4.2 Anchor dampers securely to duct. 3.1.4.3 Install dampers in main ducts within insulation. rr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -7 MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK Ul 3.1.4.4 Dampers in branch ducts shall fit against sheet metal walls, bottom and top of duct, and be securely fastened. Cut duct liner to allow damper to fit against sheet metal. 3.1.4.5 Install motorized dampers. 3.1.5 Grilles, Registers, and Diffusers: Install and anchor securely. 3.1.6 Adjustable Lock Splitter Dampers: 3.1.6.1 Dampers in equipment rooms shall be complete with locking quadrant. 3.1.6.2 Other dampers shall have concealed ceiling damper regulator with plate. 3.1.7 Painting of Ductwork: Paint ductwork visible through registers, grilles,and diffusers flat black. 3.1.8 Ductwork Leakage Criteria: 3.1.8.1 All transverse joints and longitudinal seams shall conform to SMACNA's Class A sealing requirements as defined on page 1-6 of the 1985 SMACNA Manual, First Edition. 3.1.8.2 Constant Volume Systems/Supply Ductwork 3.1.8.2.1 Allowable Leakage—per SMACNA 3.1.8.3 Constant Volume Systems/Return Ductwork aim 3.1.8.3.1 Return Ductwork—per SMACNA 3.1.8.4 Variable Air Volume Systems/Supply Ductwork 3.1.8.4.1 Fan to VAV Boxes-- 1%of design cfm ail 3.1.8.4.2 VAV Boxes to Registers--2%of design cfm 3.1.8.5 Variable Air Volume Systems/Return Ductwork 3.1.8.5.1 Return Ductwork--2% of design cfm 3.1.9 Ductwork Leakage Testing: 3.1.9.1 Installed ductwork shall be tested prior to installation of access doors,take-offs, etc. Nil 3.1.9.2 All leak testing shall be witnessed by the Engineer or representative of the Engineer. The Contractor shall give the Engineer 72 hours notice prior to testing. Any testing not witnessed by the Engineer,or his/her representative, shall be considered invalid and will be redone. am 3.1.9.3 The testing shall be performed as follows: 3.1.9.3.1 Perform testing in accordance with HVAC Air Duct Leakage Test Manual. um um BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 - 8 wr MEADOW CREST PLAYGROUND SECTION 233113 PROJECT NO. 11.12.116 STEEL DUCTWORK rr 3.1.9.3.2 Use a certified orifice tube for measuring the leakage. 3.1.9.3.3 Define section of system to be tested and blank off. 3.1.9.3.4 Determine the percentage of the system being tested. 3.1.9.3.5 Using that percentage, determine the allowable leakage (cfm) for that section being tested. 3.1.9.3.6 Pressurize to operating pressure and repair any significant or audible leaks. 3.1.9.3.7 Repressurize and measure leakage. 3.1.9.3.8 Repeat steps f. and g. until the leakage measured is less than the allowable defined in step e. NOTE: It is recommended that the first 100'-300' of ductwork installed be tested to ensure the quality of the workmanship at an early state. END OF SECTION oat r■ .r� ;wr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233113 -9 r�r air MEADOW CREST PLAYGROUND SECTION 233423 PROJECT NO. 11.12.116 EXHAUST FANS wr PART 1 - GENERAL 1.1 GENERAL 1.1.1 Includes, but not limited to, furnishing and installing specified material as described in Contract Documents. 1_2 RELATED SECTIONS 1.2.1 General Conditions and Division 01 apply to this Section. 1.2.2 Section 200000 -General Mechanical Conditions. r�r 1_3 QUALITY ASSURANCES (REQUIREMENTS OF REGULATORY AGENCIES) 1.3.1 Bear AMCA seal, UL 507 (for continuous operation), and UL 705 (volume control by speed m, control on direct drive units). 1.4 SUBMITTAL REQUIREMENTS OF THIS SECTION 1.4.1 Exhaust Fans 1.4.2 Fan curves showing system curve, and a fan curve with the maximum operation point with maximum motor size (limited by maximum shaft speed of and/or surge point). w. PART 2 - PRODUCTS 2.1 IN-LINE FANS 2.1.1 General: 1W 2.1.1.1 Motors on V-belt units shall be supported on the exterior of the fan casing with bearings encased within the fan tube. 1W 2.1.1.2 All models shall incorporate a panel to permit access to interior. 2.1.1.3 Centrex wheels shall be backwardly inclined, non-overloading and made of aluminum. r 2.1.1.4 Inlets shall be deep spun for non-turbulent entrance condition. ++■ 2.1.1.5 Approved Manufacturers: BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233423 - 1 aft MEADOW CREST PLAYGROUND SECTION 233423 PROJECT NO. 11.12.116 EXHAUST FANS 2.1.1.5.1 Cook 2.1.1.5.2 Greenheck 2.1.1.5.3 Pace Nib 2.1.1.5.4 Penn Barry 2.1.1.5.5 Twin City Fans 'is 2.2 SPEED CONTROL 2.2.1 Use manufacturer's recommended speed control, which varies speed from 50 to 100% of full speed. PART 3 - EXECUTION 3.1 INSTALLATION 3.1.1 Anchor fan units securely to structure or curb. 3.1.2 Extend all internal wiring to box on exterior of unit. r 3.1.3 Factory mount speed control on outside of case on in-line fans and underneath weather casing for rooftop fans. Eli 3.1.4 Grease hood exhaust fan. Up-blast discharge shall be a minimum of 40" from top of fan to roof. Provide with vented curb and replaceable grease termination receptor. nil 3_2 COMMISSIONING 3.2.1 The equipment and systems referenced in this section are to be commissioned per Section 019113 — General Commissioning Requirements and Section 230800 — Commissioning of HVAC. The contractor has specific responsibilities for scheduling, coordination, startup,test development,testing and documentation. Coordinate all commissioning activities with the Commissioning Authority. Mil END OF SECTION BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 233423 -2 MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS4111 PART 1 - GENERAL so 11 GENERAL 1.1.1 Conform to the General Conditions, Supplementary Conditions, and related work in other Divisions for all work in Division 26. See Division 01 for sequence of work. rr 1_2 WORK INCLUDED 1.2.1 It is the intention of this division of the specifications and the accompanying drawings to describe and provide for the furnishing, installing, testing and placing in satisfactory and successful operation all equipment, materials, devices and necessary appurtenances to provide a complete electrical system, together with such other miscellaneous installations and equipment hereinafter specified and/or shown in the plans. The work shall include all materials, appliances and apparatus not specifically mentioned herein or noted on the plans, but which are necessary to make a complete working installation of all electrical systems shown on the plans or described herein. Equipment and devices furnished and installed under other divisions of this specification (or by the Owner) shall be connected under this division. The die drawings and specifications are complementary and what is called for in either is binding as if called for in both. 1.2.2 By submitting a bid,the Contractor is acknowledging that he has made a thorough examination of the Contract Documents, existing site and building conditions, and has determined that these documents do sufficiently describe the scope of construction work required under this Contract. 1_3 SCOPE OF BASIC BID 1.3.1 Included in Division 26 work is all work and related items necessary to provide all electrical installations except as specifically excluded. In general, this includes all labor, equipment, tools, etc., to complete the electrical work. 1.4 RELATED WORK 1.4.1 Temporary Power and Lighting- See Section 015000 1.4.2 Mechanical Control Wiring—See Division 23 1.4.3 Cutting and Patching- See Section 010800 ,s 1.4.4 Trenching,backfill and asphalt work—See Division 02. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 1 ar mr MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS rrr 1.5 STANDARDS AND REGULATIONS .rr 1.5.1 The work shall comply with the latest edition of the applicable Standards and Codes of the following: No ASTM American Society for Testing and Materials NBFU National Board of Fire Underwriters NEC National Electrical Code --- State Electrical Code NESC National Electrical Safety Code NEMA National Electrical Manufacturers Association NFPA National Fire Protection Association Ile U.L. Underwriters Laboratories Inc. IPCEA Insulated Power Cable Engineers Associated CBM Certified Ballasts Manufacturers ea Federal, State and Local Building Codes ETL Electrical Testing Laboratories 1.5.2 If any conflict occurs between Government adopted Code Rules and this specification, the codes are to govern. Nothing in these drawings and specifications shall be construed to permit work not conforming with governing codes. Also, this shall not be construed as relieving the Contractor from complying with any requirements of the plans and specifications which may be in excess of, but not in conflict with, requirements of the Governing Codes. 1_6 PERMITS& FEES 1.6.1 The Contractor shall obtain and pay for all licenses, permits and inspections required by laws, MO ordinances and rules governing work specified herein. The Contractor shall arrange for inspection of work by the inspectors and shall give the inspectors all necessary assistance in their work of inspection. 1.6.2 The Contractor shall consult with and follow the requirements of the local fire, power, telephone, and television utilities serving the area and shall coordinate his work with them. 1.6.3 Utility connection and hook-up charges for power, telephone and television shall be paid by the Owner directly to the utility. The Electrical Contractor is required to provide any and all coordination necessary to support the utility connection, file for application of service (or assist the Owner in filing for application of service)and coordinate dates for service with the utilities. 1_7 DEFINITIONS 1.7.1 When "Provide" is used, it shall be interpreted as "furnishing and installing complete in operating condition". 1.7.2 When "Drawings" is used, it shall be interpreted as "all Contract Drawings for all Disciplines". 1.7.3 When "Contractors" is used,it shall be interpreted as the Electrical Contractor. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-2 .rr MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.8 INTENT OF DRAWINGS 1.8.1 The electrical drawings are intended to serve as working drawings for general layout. The equipment layout is diagrammatic and unless specifically dimensioned or detailed, does not indicate all fittings, hardware or appurtenances required for a complete operating installation. 1.8.2 Anything shown on the drawings but not covered in the specifications, or anything covered in the specifications but not shown on the drawings, shall be as if covered in both. In case of conflict between the drawings and specifications, the Engineer will select the method to be used. The Contractor shall be responsible for verifying all measurements before proceeding with the work. 1.8.3 Wiring diagrams are not intended to indicate the exact course of raceways or exact location of outlets. Raceway and outlet locations are approximately correct and are subject to revision as may be necessary or desirable at the time of installation. Precise location in every case shall be subject to the Engineer's approval. 1.9 PROTECTION 1.9.1 The Contractor shall store and guard all equipment before installation and shall protect same, and replace any equipment that has been damaged prior to final acceptance. See Section 016000 for detailed wr requirements. 1.10 HOUSEKEEPING 1.10.1 All electrical materials shall be kept stored in an orderly fashion protected from heat, cold, and the weather. rrr 1.10.2 All marred surfaces shall be refinished and painted after installation. 1.10.3 All debris shall be removed from premises during work, as directed, and at completion of job. 1.11 TEMPORARY USE 1.11.1 Temporary or interim use of any and all portions of the electrical system shall be under the supervision of the Electrical Contractor. 1.11.2 Temporary power and lighting for use during construction shall be provided per the requirements of the Division 02 specifications. air 1.12 AS-BUILT DRAWINGS 1.12.1 The Contractor shall maintain, in addition to any reference drawings, an as-built set of prints, on which all deviations from the original design shall be drafted in a neat, legible manner with red colored pencil. This red lined set shall identify all drawing revisions including addenda items, change orders, and Contractor revisions. The Contractor is responsible to revise panel schedules and load calculations as required. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-3 rtr MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS r► 1.12.2 Drawings shall show locations of all concealed raceway runs larger than 1", giving the number of conductors and size of raceway. Underground ducts shall be shown with cross section elevations. All pipe,raceway, manholes or lines of other trades shall be included. 1.12.3 The Contractor shall update all references to specific products to indicate products actually installed on project. This shall include, but not be limited to, lighting fixtures,baseboard heaters, etc. 1.12.4 Upon completion of the Division 26 Work,the Contractor shall deliver the red lined drawings and illa one set of neatly drafted as-built drawings on electronic media in AutoCAD R-2006 format and mylar to the Engineer for transmittal through the Engineer to the Owner. 1.12.5 See Section 270000 for additional requirements of low voltage systems. 111. 1.13 WARRANTY r,n 1.13.1 Provide a written warranty that the Division 26 work is free from mechanical and electrical defects. Contractor shall replace and repair, to the satisfaction of the Engineer, any parts of the no installation which may fail within a period of 12 months after the certificate of final acceptance, provided that such failure is due to defects in material or workmanship, or failure to follow the specifications and drawings. 1.13.2 See Section 270000 for additional requirements of low voltage systems. 1.14 INSTRUCTIONS AND MANUALS 1.14.1 Operation and maintenance data shall be submitted in accordance with Section 017000. so 1.14.2 Manuals shall contain shop drawings, wiring diagrams, operating and maintenance instructions, replacement parts lists, and equipment nameplate data for all equipment and systems installed under the project. Signal equipment submittals shall contain step-by-step circuit description information designed to acquaint maintenance personnel with equipment operation in each mode of operation. Manuals shall contain original brochures supplied by manufacturers. Xerox copies of originals will not be accepted. 1.14.3 Each type of device provided shall be identified in the 0 & M Manual using the same identification as shown on the drawings and specifications. The information included must be the exact equipment installed not the complete "line" of the Manufacturer. Where sheets show the equipment installed and other equipment, the installed equipment shall be neatly and clearly identified on such sheets. Parts lists shall give full ordering information assigned by the original parts manufacturer. Relabeled and/or renumbered parts information as reassigned by equipment supplier are not acceptable. The following information shall be provided for each device: 116 1.14.3.1 Manufacturer's name, address and phone number. rr 1.14.3.2 Local supplier's name, address and phone number. 1.14.3.3 Complete parts lists including quantities and manufacturer's part numbers. 1.14.3.4 Installation instructions. ow BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-4 MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.14.3.5 Recommended maintenance items including maintenance procedure and recommended interval of maintenance listed in hours of operation, calendar unity or other similar time unit. 1.14.4 The 0 & M Manual shall be assembled as detailed in Section 017000. As a minimum, the following sections shall be broken out: 1.14.4.1 Light Fixtures 1.14.4.2 Lamps and Ballasts- referenced to each fixture type 1.14.4.3 Panelboards, Switchgear,and Transformers awe 1.14.4.4 Motor Controls 1.14.4.5 Fire Alarm System 1.14.4.6 Intrusion Alarm 1.14.4.7 Access Control System 1.14.4.8 Intercom/Clock/Program 1.14.4.9 Telecommunication System 1.14.4.10 Television System 1.14.4.11 Audio/Visual Presentation Systems 1.14.4.12 Sound Systems 1.14.4.13 Low Voltage Lighting Control Systems ern 1.14.4.14 TVSS 1.14.4.15 Data Network so 1.14.4.16 Generator&ATS am 1.14.5 Wiring Diagrams for each system shall be complete for the specific system installed under the Contract. "Typical" Line Diagrams will not be acceptable unless properly marked to indicate the exact field installation. 1.15 WORK NOT INCLUDED 1.15.1 Indicated motors, controls, and equipment as described in other divisions shall be furnished by other trades, but shall be moved, set and wired to electrical controls and power supply by the Electrical Contractor. tar BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-5 rr MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.15.2 Work to be included under this Contract shall be defined on drawings and in these specifications. Any details beyond these limits are meant only to give installation clarity to that portion which is a part of this Contract. 1.16 INSTRUCTION PERIODS 1.16.1 Upon completion of the work and after all tests and final inspection of the work by the is authority(s) having jurisdiction, the Contractor shall demonstrate and instruct the Owner's designated operation and maintenance personnel in the operation and maintenance of the various electrical systems. The Contractor shall arrange scheduled instruction periods with the Owner. The Contractor's representatives shall be superintendent's or foremen knowledgeable in each system and suppliers representatives when so specified. 1.16.2 Scheduled Instruction periods shall be: , 1.16.2.1 Low Voltage Lighting Control Systems 4 hours 1.16.2.2 Intercom/Clock/Program System 4 hours 1.16.2.3 Sound Systems 4 hours 1.16.2.4 Television System 4 hours 1.16.2.5 Fire Alarm System 4 hours , 1.16.2.6 Security System 4 hours 1.16.2.7 Access Control System 4 hours 1.16.2.8 Generator Systems 4 hours 1.16.2.9 Data Network 4 hours 1.16.2.10 Daylighting Control Systems 4 hours MI 1.16.3 Costs for time involved by Contractor shall be included in the bid. 1.17 COMPLETION OF WORK 1.17.1 Upon completion of the Division 26 work, the Contractor shall comply with requirements of Section 017000 for project closeout. 1.17.2 Arrange for and obtain all required inspections and certificates pertaining to the Division 26 work or and deliver the certificates to the Engineer in triplicate. 1.17.3 Prior to or at the time of final inspection, the Contractor shall, as outlined in detail in the specifications, complete the delivery of all the following items: BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-6 u MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.17.3.1 Completion Letter rrr 1.17.3.2 Certificate of Final Inspection,in triplicate form. Electrical Inspector Fire Department COMPLETION OF WORK 260000— 1.17 1.17.3.3 Warranty to Owner SUPPLEMENTARY GENERAL (with copy for Engineer CONDITIONS 260000- 1.13 err 1.17.3.4 Marked Set, GENERAL AS-BUILT DRAWINGS Electronic Media Set on CD 260000— 1.12 NW in AutoCAD R-2006 Format, and Mylar Set of"As-Built" Electrical Drawings arr 1.17.3.5 Certificate of ELECTRICAL SYSTEM PROTECTIVE Completion and Document DEVICE STUDY 260573 Requirements for Protective Device Study 1.17.3.6 Motor Current GENERAL, TESTS 260519—3.3.4 Readings 1.17.3.7 Phase Current GENERAL, TESTS 260519—3.3.5 Readings 1.17.3.8 OHMIC Test GENERAL, TESTS 260519—3.3.2 Readings 1.17.3.9 Panelboard and MATERIALS, GENERAL 260000 -2.3 Special Equipment Shop Drawings and Final Approved List of Materials Installed 1.17.3.10 Certified of WIRES AND CABLES 260519 Feeders Torque Results im 1.17.3.11 * Receipt from LIGHTING FIXTURES 265000 person to whom delivered the following spare glasses, plastic diffusers, lamps, and ballast fuses. rr wr rr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 260000-7 orr MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.17.3.12 * Receipt from LOW VOLTAGE—270000 rri person to whom delivered the FIRE ALARM—283100 following: Spare Elements FUSES—262813 for Fire Detectors, Fuses for PANELBOARDS—262416 Switches, Spare Keys for SWITCHES & RECEPTACLES—262726 Panelboards, receptacles switches, plugs, etc. wr 1.17.3.13 Wiring diagrams, GENERAL, INSTRUCTIONS & Maintenance Manuals, MANUALS— 260000— 1.14 Operation Instructions,and II Brochures(5 sets minimum) * Secure delivery instructions from Architect for delivery to Owner. moo 1.18 SHOP DRAWING SUBMITTALS 1.18.1 This Contractor shall submit to the Architect as described in Section 013000. 1.18.2 Shop drawings shall be submitted complete, at one time and each item indexed with dividers and ++ separated per specification section and shall be,but not limited to the items of equipment listed below: 1.18.2.1 All panelboards, showing breaker arrangement with circuit numbers, relays, and panel skirts. 1.18.2.2 Motor starters and controls designating where items are intended to be used and equipment being controlled. 1.18.2.3 Transformers (Dry Type) 1.18.2.4 TVSS 1.18.2.5 Disconnect Switches rrr 1.18.2.6 Fuses and spare fuse cabinet 1.18.2.7 Electrical System Protective Device Study 1.18.2.8 Lighting Fixtures (Complete) goat 1.18.2.9 Lighting Fixture Lamps and Ballasts referenced to fixture types 1.18.2.10 Low Voltage Lighting Control Systems es 1.18.2.11 Wiring Devices 1.18.2.12 Back Boxes BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000-8 MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 1.18.2.13 Coverplates 1.18.2.14 Raceways and Connectors 1.18.2.15 Fire Wall Penetration Seals 1.18.2.16 Cable Tray 1.18.2.17 Copper Wire 1.18.2.18 Aluminum Wire 1.18.2.19 *Fire Alarm System 1.18.2.20 *Security System 1.18.2.21 *Access Control System 1.18.2.22 *Telecommunication System 1.18.2.23 *Intercommunication/Clock/Program System rr 1.18.2.24 *Sound Systems 1.18.2.25 *Audio/Visual Presentation Systems r�r 1.18.2.26 *Data Network Systems 1.18.2.27 Automatic Transfer Switches 1.18.2.28 Generator System 1.18.2.29 **All Specialty Systems not listed above** 1.18.2.30 Any other items requested by Engineer. *See Section 270000 for further requirements. 1.18.3 Within 10 working days after the date of the letter rejecting any items of equipment, lighting fixtures, or materials as not in accordance with the specifications, Contractor shall submit a new list of items he proposes to furnish and install in place of those items rejected. If the Contractor fails to submit this new list within the above specified time, or if any items on this second list are rejected as not being in accordance with these specifications, the Engineer may select the items which the Contractor shall furnish and install without change in Contract price or time of completion. ■r 1.18.4 The acceptance of a manufacturer's name or product by the Engineer does not relieve the Contractor of the responsibility for providing materials and equipment which comply in all details with the requirements of the Contract Documents. The Contractor shall be solely responsible for submitting materials at such a time to allow a minimum of two weeks for Engineer's review. ea BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 260000-9 rr AIM iit MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS am 1.19 SCHEDULE OF VALUES 1.19.1 Provide Schedule of Values per Division 01 and related project requirements. 1.19.2 Division 26 Breakdown: Provide schedule of values for the following categories(as a minimum): 1.19.2.1 Electrical Mobilization 1.19.2.2 Electrical Submittals rig 1.19.2.3 Electrical General Project Management,General Design, General Coordination 1.19.2.4 Branch Circuit Materials Rough-in 1.19.2.5 Branch Circuit Materials Rough in—Labor 1.19.2.6 Branch Circuit Trim—Materials 1.19.2.7 Branch Circuit Trim— Labor 1.19.2.8 Service Materials r 1.19.2.9 Service Materials—Labor 1.19.2.10 Feeder Materials a 1.19.2.11 Feeder Materials- Labor 1.19.2.12 Panelgear, Disconnects, Starters r"i 1.19.2.13 Panelgear, Disconnects, Starters—Labor a 1.19.2.14 Light Fixtures 1.19.2.15 Light Fixtures— Labor 1.19.2.16 Telephone System 1.19.2.17 Intercom/Clock System 1.19.2.18 Television System a 1.19.2.19 Gymnasium Sound System 1.19.2.20 Fire Alarm System 1.19.2.21 Security System 1.19.2.22 Data System • BLRB ARCHITECTS 04/02/13 a BCE ENGINEERS, INC. PAGE: 260000- 10 a w MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS ryr 1.19.2.23 Systems Equipment—Labor 1.19.2.24 Cable Tray 1.19.2.25 Cable Tray—Labor 1.19.2.26 Electrical Punchlist, Closeout, and Owner Training 1.19.3 The dollar value for"Electrical Punchlist, Closeout, and Owner Training" shall in no case be less than 2% of the total dollar value of the Division 26 work (or as indicated in Division 01, whichever is higher). 1.19.4 The Contractor is advised that in addition to payments held out for retainage and project final completion (i.e. "Electrical Punchlist, Closeout, and Owner Training"), as specified above and in Division 01, the Owner reserves the right to withhold 10% of the funds for any of the above categories until the systems (of that category) have been proven to operate as specified and have been completely tested and adjusted. rr PART 2 - PRODUCTS rr 2_1 COMPETITIVE PRODUCTS 2.1.1 Any reference in the specifications to any article, device, product, material, fixture, form or type of construction by name,make or catalog number shall be interpreted as establishing a standard of quality and shall not be construed as limiting competition. The Contractor, in such cases, may at his option use any article, device, product, material, fixture, form or type of construction which in the judgment of the ` Engineer, expressed in writing, is equal to that specified. However, any manufacturer not listed as an accepted Bidder for a specific item must be submitted for acceptance in writing in accordance with Section 016000. 2_2 MANUFACTURER/EQUIPMENT PRIOR APPROVALS 2.2.1 Any manufacturer/equipment not listed as an approved substitute for a specified item must be submitted for acceptance in accordance with Section 016000, in writing, with detailed information to wr include: 2.2.1.1 Manufacturer's Catalog Data rr� 2.2.1.2 Complete Physical and Technical Data 2.2.1.3 Wiring Diagrams tot 2.2.1.4 Detailed reference (written or highlighted) noting compliance with the appropriate Specification Section and all applicable Specification item numbers within that Section 2.2.1.5 Complete type written index cross referencing all proposed substitutes and specified items ot BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 1 1 rw MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 2.2.1.6 Detailed reference to specified items (written or highlighted) noting equal quality and performance of proposed substitute equipment 2.2.1.7 Other descriptive data, as required by the Engineer 2.2.2 If substitute material is determined to be acceptable by the Engineer, it will be included in a subsequent Addenda prior to bidding. The acceptance of a manufacturer's name or product by the Engineer does not relieve the Contractor of the responsibility for providing materials and equipment which comply in all details with the requirements of the Contract Documents. ' 2.2.3 Only materials which are specified or published in addenda as acceptable shall be used. 2.3 MATERIALS is 2.3.1 All materials must be of the quality herein specified. All materials shall be new, of the best quality and free from defects. They shall be designed to ensure satisfactory operation and operational life in the environmental conditions which will prevail where they are being installed. rrr 2.3.2 Each type of material shall be of the same make and quality. The materials furnished shall be standard products of the manufacturers regularly engaged in the production of such equipment and shall be the manufacturer's latest standard design. 2.3.3 All materials shall be U.L. or E.T.L. listed for the purpose for which they are used. 2.3.4 Equipment in compliance with U.L. standards but not bearing their label is not acceptable. If the manufacturer cannot arrange for labeling of an assembled unit at the factory the unit shall be field evaluated per the Washington State Administrative Code (WAC) and the electrical inspector's requirements. 2.4 COMPLETE SYSTEM 2.4.1 All the systems mentioned shall be complete and operational in every detail except where specifically noted otherwise. Mention of certain materials in these specifications shall not be construed as releasing the Contractor from furnishing such additional materials and performing all labor required to provide a complete and operable system. rat 2.5 NAMEPLATES 2.5.1.1 Provide nameplates constructed of plastic (black on white) laminated material engraved through black surface material to white sublayer (attach with screws on NEMA 1 enclosures). EXCEPTION (1): Emergency distribution system component labeling - white letters on red background. Exception(2): Series rated systems shall be yellow background with white letters. 2.5.1.1.1 Service Entrance Label: Refer to Section 262413 2.5.1.1.2 Panelboard Labels: Refer to Section 262416 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 12 me MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS lie 2.5.1.1.3 Switch and Receptacle Labels: Refer to Section 262726 2.5.1.1.4 Motor Starter and Disconnect Labels: Refer to Section 262816 2.5.1.1.5 Special Equipment/Outlet Labels: Refer to Appropriate Sections. 2.5.1.1.6 Under 600 Volt Feeder Tags: Refer to Section 260519. die PART 3 - EXECUTION 3_1 GENERAL MI 3.1.1 Careful consideration shall be given to clearances under and over beams, pipes and ducts, to provide proper headroom in all cases. Check drawings to determine heights of all suspended ceilings and size of pipe shafts where raceway and wire-ways shall run. Coordinate installation of Division 26 wiring and equipment with Division 23 and other trades. Where insufficient room for proper installation appears, obtain clarification from Engineer before any installation is begun. 3.1.2 Cutting and Patching: 3.1.2.1 Obtain permission from the Architect and/or Owner's Representative prior to cutting. Locate cuttings so they will not weaken structural components. Cut carefully and only the minimum amount necessary. Cut concrete with diamond core drills except where space limitations prevent the use of such drills. 3.1.2.2 All construction materials damaged or cut into during the installation of this work must be del repaired or replaced with materials of like kind and quality as original materials by skilled labor experienced in that particular building trade. rr 3_2 COORDINATION 3.2.1 The Contractor is responsible for accomplishing Division 26. The work shall coordinate with that of the other Contractors and/or other trades doing work in the building and shall examine all Drawings, including the several Divisions of Mechanical, Structural, Civil and Architectural, for Construction Details and necessary coordination. Specific locations of construction features and equipment shall be die obtained from the Contract Documents, field measurements, and/or from the trade providing the material or equipment. No extra costs will be allowed for failure to obtain this information. 3.2.2 All conflicts shall be reported to the Engineer in writing before installation for decision and correction. Special attention is called to the following items: or 3.2.2.1 Door swings to the end that switches will be located on "Strike" side of the door. 3.2.2.2 Location of grilles,pipes, sprinkler heads, ducts and other mechanical equipment so that all electrical outlets, lighting fixtures and other electrical outlets and equipment are clear from and in de proper relation to these items. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 13 MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 3.2.2.3 Location of cabinets, counters and doors so that electrical outlets, lighting fixtures and equipment are clear from and in proper relation to these items. aim 3.2.2.4 Type and height of ceiling. 11. 3.2.2.5 All device measurements referenced on drawings or specifications are to be centered of device unless noted otherwise. 3.2.3 The Contractor will not be paid for work requiring reinstallation due to lack of coordination or interference with other Contractors or trades. This includes, but is not limited to, removing, replacing, relocating, cutting, patching,and finishing. 3.2.4 Device and fixture locations may be changed within 15 feet without extra charge if so desired by the Engineer,before installation. 3.3 REQUESTS FOR INFORMATION(RFI) 3.3.1 It is our intent to provide a timely response for RFIs regarding Division 26 Work. To further expedite this process, where a suggestion can be determined or derived at by the initiator of the RFI, it is required this suggestion be supplied with the submitted RFI. If no suggestion is given where one is possible,the RFI will be returned as incomplete. 3.4 CLEANING AND PAINTING 3.4.1 All equipment, whether exposed to the weather or stored indoors shall be covered to protect it from water, dust and dirt. 3.4.2 After installing, all metal finishes shall be cleaned and polished, cleaned of all dirt, rust, cement, plaster,grease and paint. ali 3.4.3 All equipment with a primer coat of paint shall be given two (2) or more coats of a finish enamel and scratched surfaces be refinished to look like new. Markings, identification and nameplates shall be replaced. am 3.5 EQUIPMENT IDENTIFICATION 3.5.1 Provide identifying engraved bakelite nameplate on all equipment, including pull boxes, to clearly indicate its use,area served,circuit identification, voltage,and any other useful data. as 3.5.2 Each auxiliary system, including communications, shall be clearly labeled to indicate its function. Is Is no BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 14 ur MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS 3_6 DEVIATION rr 3.6.1 Deviation from the shop drawings in construction or installation of equipment shall not be made unless Shop Drawings showing proposed deviations are submitted to and approved by the Engineer. If any equipment is furnished under this or other divisions with current, voltage or phase ratings that differ from those shown on the drawings, the Contractor shall notify the Engineer in writing immediately and shall not connect said equipment until instructed as to required changes by the Architect. No extension of time will be granted as a result of such changes. 3.7 EXCAVATIONS ow 3.7.1 All excavations are to be so conducted so that no walls or footings shall be disturbed in any way. 3.7.2 Remove all surplus earth not needed for backfilling and dispose of same as directed. 3.8 WIRING METHODS dill 3.8.1 All low voltage wiring shall be in Raceway with Junction Boxes and Fittings where concealed in walls and in inaccessible ceiling space. rr 3.8.2 All branch circuit and signal wiring shall be installed in raceway with junction boxes and fittings. 3.8.3 Provide access panels as needed for pull boxes and equipment located above ceiling or behind walls. 3.8.4 All emergency systems outlet and junction boxes shall have a red plastic tag inside. 3.8.5 Multiple feeder runs shall be rod hung, using a strut type channel with individual one hole clamps, back plates and machine screws. .+w 3.8.6 Any low voltage cables that are not terminated at both ends shall be tagged and labeled per code. 3.8.7 See Section 270000 for additional requirements of low voltage systems. 3.9 PENETRATIONS OF FIRE RATED ELEMENTS 3.9.1 Must be made such as to retain that rating. I- 3.10 HANGERS AND SUPPORTS err 3.10.1 Provide hangers,brackets, and suspension rods and supplementary steel to support equipment. 3.10.2 Hangers provided under other divisions shall not be used for support of Division 26 equipment unless permitted by Architect/Engineer. wir BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 15 MEADOW CREST PLAYGROUND SECTION 260000 PROJECT NO. 11.12.116 ELECTRICAL GENERAL CONDITIONS err 3.11 CHASES AND OPENINGS 3.11.1 Provide to the masonry and concrete trades all templates and details of chases, openings in floors and walls as required for Division 26 equipment installation. 3.12 PAINTING 3.12.1 Painting in general will be covered under another division of this specification, except items furnished under Division 26 that are scratched, marred in shipment or installation, shall be refinished by the Division 26 Contractor. 3.13 WORKMANSHIP AND OBSERVATION MB 3.13.1 Workmanship shall be of the best quality and none but competent workers shall be employed under the supervision of a competent foreman. All completed work shall represent a neat and workmanship like appearance. 3.13.2 All work and materials shall be subject to observation at any and all times by representatives of the Engineer. 3.14 MISCELLANEOUS 3.14.1 Provide complete seismic anchorage and bracing for the lateral and vertical support of conduit and electrical equipment, as required by the International Building Code. ia 3.14.2 Conduits that cross seismic separations shall be installed with flexible connection suitable to 'r' accommodate conditions. Secure raceways on each side of a separation and provide a minimum of 36" length of flexible conduit to span separation. 3.15 CABLE AND WIRING ROUTED UNDERGROUND OR UNDERSLAB se 3.15.1 All cables and conductors, both line voltage and low voltage, routed underground or underslab shall be U.L. listed for installation in wet locations per NEC and WAC codes. as 3.16 COMMISSIONING 3.16.1 The equipment and systems referenced in this section are to be commissioned per Section 019113 +rrr — General Commissioning Requirements and Section 260800 — Commissioning of Electrical Systems. The contractor has specific responsibilities for scheduling, coordination, startup,test development, testing and documentation. Coordinate all commissioning activities with the Commissioning Authority. END OF SECTION BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260000- 16 MEADOW CREST PLAYGROUND SECTION 260010 PROJECT NO. 11.12.116 EXCAVATION & BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIES PART 1 - GENERAL me L1 GENERAL INCLUDES 1.1.1 Excavation and Associated Grading. rr 1.1.2 Trenching and Trench Protection. 1.1.3 Backfilling and Compaction. 1.1.4 Verification of Existing Utilities. 1.1.5 Protection of Utilities. 1.2 RELATED SECTIONS 1.2.1 Section 260533 - Raceways 1.2.2 Section 265000 - Lighting 1.2.3 Section 270000—Communications System/Clock/Program System 1.2.4 Section 272000—Data and Voice Infrastructure 1.2.5 Section 281600—Intrusion Alarm System 1.2.6 Section 283100—Fire Alarm System I, 1.3 QUALITY ASSURANCE 1.3.1 Inspection of Job Conditions: Prior to starting work and during work, the installer shall examine the work by others, site and job conditions under which excavation, trenching, and backfilling for underground utilities work will be performed, and notify the General Contractor in writing of unsatisfactory conditions or work. Do not proceed with work until unsatisfactory conditions have been corrected in a manner acceptable to the Installer. r .1.3.2 Codes and Standards: Comply with requirements of the following codes and standards (Latest Edition)except as modified herein: 1.3.2.1 International Conference of Building Officials, "International Building Code". de 1.3.2.2 Local requirements for all utility work. 1.3.2.3 OSHA and WISHA regulations. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260010- 1 MEADOW CREST PLAYGROUND SECTION 260010 PROJECT NO. 11.12.116 EXCAVATION & BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIES 1.3.2.4 APWA Standard Specifications. 1.3.2.5 National Electrical Code—NFPA 70. 1.4 RESPONSIBILITY 1.4.1 The Contractor is solely responsible for compliance with the requirements of the drawings, specifications, local codes and standards, proper construction coordination with work of other trades, and protection and worker's safety. Contractor shall advise Engineer of any discrepancy in, or disagreement with the specifications and/or drawings prior to starting work and not proceed until issue is resolved. Commencement of work shall indicate Contractor's acknowledgement of his expertise in this type of work. Any delay resulting from failure to comply with this procedure will not be basis for an extension of the completion date. rr+ 1_5 APPLICABLE PUBLICATIONS 1.5.1 The publications listed below form a part of this specification to the extent referenced. 1.5.2 American Society of Testing and materials(ASTM)publications: lit D 422-63 Particle Size Analysis of Soils. D 423-66 Liquid Limit of Soils. D 424-59 Plastic Limit and Plasticity Index of Soils. en D 1557-78 Moisture Density Relations of Soils using a 10 lb. (4.54kg) Rammer and 18 inch (457 mm) Drop. D 2167-66 Density of Soil In-Place by the Rubber Balloon Method. lit D 2217-66 Wet preparation of Soil Samples for Particle-Size Analysis and Determination of Soil Contents. D 2487-69 Classification of Soils for Engineering Purposes. D 2922-81 Test Methods for Density of Soil and Soil-Aggregate In Place by Nuclear Methods(Shallow Depth). E 548-79 Generic Criteria for Use in the Evaluation of Testing and Inspection Agencies. PART 2 - MATERIALS me 2_1 SATISFACTORY MATERIALS 2.1.1 Materials classified as ASTM D2487, Unified Soil Classification System as SW, SP, GW, and GP are satisfactory for backfill use. Materials classified as SP-SM, GP-GM, GM, GC and ML are also satisfactory for backfill use provided that they contain moisture contents suitable for the intended use and are reasonably free of organic matter. Native material, not considered unsatisfactory as specified below, may comply. Except that no material shall have any object with a dimension exceeding 2 inches and no object shall be sharply angular. rr; BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260010-2 WIC MEADOW CREST PLAYGROUND SECTION 260010 PROJECT NO. 11.12.116 EXCAVATION & BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIES 2_2 UNSATISFACTORY MATERIALS r 2.2.1 Materials classified in ASTM D2487, Unified Soil Classification System as PT, OH, and OL are unsatisfactory . Unsatisfactory materials also include man-made fills, refuse and all materials containing excessive organic matter or having moisture contents which are not suitable for the intended use, or ariN having objects with dimensions exceeding 2 inches(boulders,etc.). 2_3 UNSTABLE MATERIAL 2.3.1 Unstable material shall consist of material too wet to properly support the utility conduit or appurtenance structure,and material identified as unsuitable in the National Electrical Code 300-5(F). 2.4 GRAVELLY SAND BORROW MATERIAL 2.4.1 Gravelly sand borrow material to provide backfill, or replace unsuitable soil, shall meet the requirements of SW, SP, GW, and GP materials, except that the maximum percentage passing the No. 200 sieve shall not exceed 5% based on the soil fraction passing the U.S. No. 4 sieve, and not contain discrete particles greater than 2 inches in diameter. rr 2_5 DEGREE OF COMPACTION 2.5.1 Degree of compaction shall be expressed as a percentage of the maximum density obtained by the test procedure presented in ASTM D1557, Method D. Minimum compaction requirements shall be as specified in PART 3. rr 2.6 DRAINAGE GRAVEL ,or 2.6.1 Shall be 3/4 inch washed gravel with no more than 2% passing 1/2 inch sieve opening. 2.7 SPECIAL BEDDING AND INITIAL BACKFILL MATERIAL 2.7.1 Minus 3/8 inch washed pea gravel. PART 3 - EXECUTION 3_1 EXCAVATION 3.1.1 If workers enter any trench or other excavation four or more feet in depth that does not meet the open pit requirements of WSDOT Section 2.09.3(3)B, it shall be shored and cribbed. The Contractor alone shall be responsible for worker safety. All trench safety systems shall meet the requirements of the Washington Industrial Safety and Health Act, Chapter 49.17 RCW. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260010-3 MEADOW CREST PLAYGROUND SECTION 260010 PROJECT NO. 11.12.116 EXCAVATION & BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIESasik 3.1.2 Excavation of every description and of whatever substances encountered shall be performed to allow the installation of all utilities at the lines and grades as required. During excavation, material mil satisfactory for backfilling shall be stockpiled in an orderly manner at a distance from the banks of the trench sufficient to avoid overloading and to prevent slides or cave-ins. Adequate drainage shall be provided for the stockpiles and surrounding areas by means of ditches, dikes, or other approved methods. The stockpiles shall also be protected from contamination with unsatisfactory excavated material or other material that may destroy the quality and fitness of the suitable stockpiled material. ma 3.1.3 If the Contractor fails to protect the stockpiles and any material becomes unsatisfactory as a result, such material shall be removed and replaced with satisfactory on-site or imported material from approved sources at no additional cost to the Owner. 3.1.4 Excavated material not required or not satisfactory for backfill shall be removed from the site and shall be disposed of off site, at the Contractor's expense, at the Contractor's waste area. Any excess satisfactory excavated materials shall not be mixed with unsatisfactory materials. Unsatisfactory materials shall not cover available suitable materials, or be disposed of in such a manner as to interfere with subsequent borrow operations. 3.1.5 Grading shall be done as may be necessary to prevent surface water from flowing into the excavation, and any water accumulating therein shall be removed so that the stability of the bottom and sides of the excavation is maintained. Unauthorized over-excavation shall be backfilled in accordance with paragraph 3.05 BACKFILLIING at no additional cost to the Owner. 3.1.6 The Contractor shall provide dewatering as required for installation of underground work. 3.2 TRENCH EXCAVATION 3.2.1 The trench excavation shall meet the requirements of the National Electrical Code and local utility standards. 3.2.2 Bottom Preparation: The bottoms of trenches shall be accurately graded to provide uniform bearing and support for the bottom quadrant of each section of the conduit and for bedding. Stones of 2 inches or greater in any dimension, or as recommended by the conduit manufacturer, whichever is smaller, shall be removed to avoid point bearing. 3.2.3 Removal of Unsuitable Material: Where unsuitable material is encountered in the bottom of the trench, such material shall be removed to the depth directed and replaced to the proper grade with select granular material as provided in paragraph 3.05 BACKFILLING. When removal of unsuitable material is required due to the fault or neglect of the Contractor in his performance of the work,the resulting material shall be excavated and replaced by the Contractor without additional cost to the Owner. 3.2.4 Bedding: The bedding surface for the conduit shall provide a firm foundation of uniform density throughout the entire length of the conduit. The conduit shall be bedded carefully in a soil foundation accurately shaped and rounded to conform to the lowest one-fourth of the outside portion of circular us conduit or to the lower curved portion of conduit arch for the entire length of pipe or arch. When necessary,the bedding shall be taped. Provide bedding using pea gravel where noted on the drawings. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260010-4 MEADOW CREST PLAYGROUND SECTION 260010 PROJECT NO. 11.12.116 EXCAVATION& BACKFILL FOR ELECTRICAL UNDERGROUND UTILITIES 3_3 EXCAVATION FOR APPURTENANCES aft 3.3.1 Excavation for manholes, handholes or similar structures below grade shall be sufficient to leave at least 12 inches clear between the outer structure surfaces and the face of the excavation or support members. When concrete or masonry is to be placed in an excavated area, special care shall be taken not to disturb the bottom of the excavation. Excavation to the final grade level shall not be made until just before the concrete or masonry is to be placed. err 3_4 JACKING,BORING,AND TUNNELING 3.4.1 Unless otherwise indicated, excavation shall be by open cut, except that sections of a trench may be jacked, bored, or tunneled if the raceway, cable or duct can be safely and properly installed and backfill can be properly tamped in such sections. 3_5 BACKFILLING 3.5.1 Backfill material shall be compacted to 6" layers and as specified in Paragraph 3.06-Compaction. 3.5.1.1 Trench Backfill: Trenches shall be backfilled to finish grade. a• 3.5.1.2 Replacement of Unstable Material: Unstable material removed from the bottom of the trench of excavation shall be replaced with select granular material or gravel borrow placed in layers not exceeding 6 inches loose thickness. 3.5.1.3 Bedding and Initial Backfill: Bedding shall consist of satisfactory materials. Initial backfill shall be in 6 inch lift. wr 3_6 COMPACTION am 3.6.1 Each layer of fill, or the excavated subgrade, shall be compacted to at least 95%, per ASTM D1557, of laboratory maximum density. Compaction shall be accomplished by approved tamping rollers, pneumatic-tired rollers,three-wheel power rollers, or other approved compaction equipment. 3_7 PROTECTION NW 3.7.1 Newly graded excavated or bedded areas shall be protected from traffic and from erosion, and any settlement or washing away that may occur from any cause, prior to acceptance, shall be repaired and r grades reestablished to the required elevations and slopes. END OF SECTION rw BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260010-5 ®r MEADOW CREST PLAYGROUND SECTION 260519 PROJECT NO. 11.12.116 WIRES AND CABLES aa PART 1 - GENERAL de 1_1 WORK INCLUDED 1.1.1 Provide all wire, cable, and terminations complete. PART 2 - PRODUCTS wr 2.1 WIRE AND CABLE (COPPER,600-VOLT) 2.1.1 Interior and Above Grade: All wires to be Type THW or RHW. Type THWN/THHN or XHHW wire may be utilized at Contractors option, subject to code requirements. Wire and cables shall be brought to project in original containers bearing the underwriters label. Provide Type AVA wire where conductors are subject to temperature above 167 Degrees F. 2.1.2 Underground: All conductors to be type USE. Increase Raceway size when necessary to rr+ accommodate conductors per code. Exception: Underground conductors completely contained in code recognized Raceway and boxes may be Type THW, THWN or XHHW. 2.2 SPLICES 2.2.1 Above Grade: Solderless type only. Preinsulated "twist-on" type (limited to size #10 and smaller). Bolt on compression type with application of preformed insulated cover,heat shrinkable tubing or plastic insulated tape acceptable for all sizes. ar 2.2.2 Below Grade: Splices below grade shall be in handholes and shall be made watertight with epoxy resin type splicing kits similar to Scotchcast. irr 2_3 TERMINATIONS 2.3.1 Compression set,bolted or screw terminal. rir 2.3.2 Conductors #12 and smaller shall utilize eye or forked tongue type compression set terminator when termination is to a bolted or screw set type terminal block or terminal cabinet. 2.4 PLASTIC CABLE TIES al 2.4.1 Nylon or Equivalent, locking type. rim BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260519- 1 r MEADOW CREST PLAYGROUND SECTION 260519 PROJECT NO. 11.12.116 WIRES AND CABLES rr� 2.5 CABLE TAGS rrr 2.5.1 Cable tags shall be installed on all three phase feeder cables. Tags shall be embossed with feeder power source and circuit number, i.e. panel A-26. Use tag part No. FT201 for cables up to 1-1/2 inch, use FT-205 for over 1-1/2 inch. PART 3 - EXECUTION Mk 3_1 GENERAL 3.1.1 Install all wiring in Raceway unless shown or specifically authorized otherwise. 3_2 WIRE SIZE 3.2.1 No. 12 AWG minimum for power and lighting circuits. 3.2.2 Provide solid wire for No. 10 AWG and smaller, and stranded conductors for No. 8 AWG and larger(600)volts. w 3.3 TESTS 3.3.1 In addition to the factory testing of all equipment and cable, the Contractor shall test all wiring connections for continuity and ground before any fixtures or other loads are connected. Tests shall be made with a 500V. Minimum DC "Megger" type tester. If tests indicate faulty insulation (less that 2 megohms), such defects shall be corrected and tested again. Contractor shall provide all apparatus to make tests and shall bear all expenses of required testing. Routine operation tests shall be made on all pieces of equipment to demonstrate that working parts are in operating condition. Results of all tests shall be recorded and submitted to the Architect. The Contractor shall immediately replace all parts, which fail to pass the test. 3.3.2 Measure the OHMIC value of the Electric Service Entrance metallic "System Ground" with reference to "Earth Ground" using the "Multiple Ground Rod Fall-In-Potential" method and suitable instruments. Maximum resistance to ground shall be less than 10 ohms. If this resistance cannot be obtained with the ground system shown, notify the Architect immediately for further instructions. Provide OHMIC test results to Engineer. 3.3.3 All circuits both in and out of the building shall test out free of grounds, short circuits and other defects. 3.3.4 Check and record catalog number and ampere size of controller overload heaters installed, nameplate full-load amperes, and actual operating amperes of each motor. IMPORTANT: Submit rr�, recorded data in triplicate to the Engineer. Check proper load balance on the electrical system, direction of rotation, lubrication,and overload protection of all motors before placing in operation. lalii 3.3.5 Provide a log of ampere reading for all panels from phase to neutral for 4 wire panels and from phase to phase for 3 wire panels. These readings shall be taken with all loads activated. mos BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260519-2 rw sill MEADOW CREST PLAYGROUND SECTION 260519 PROJECT NO. 11.12.116 WIRES AND CABLES 3.3.6 The final test of all equipment shall be made on dates designated by the Architect/Engineer and all readings shall be made in his presence. 3.3.7 Feeders shall be checked to ensure all phases are energized before connecting to their respective motors. Each motor shall rotate in the proper direction for its respective load. Prior to rotation test, all bearings shall be inspected for proper lubrication. 3.3.8 Minimum megger test for equipment shall be as follows: Equipment Maximum Minimum Test Voltage Rating Resistance rrr 1,000-Volts or less 2 Megohms 3.3.9 Provide certification of torque values for feeder and service entrance conductors per equipment manufacturer's recommendation. 3_4 CONDUCTOR SIZES,REFERENCED ON PLANS 3.4.1 Copper,type TH W or RHW unless noted. 3_5 PULLING 3.5.1 Use no mechanical means for pulling No. 8 AWG conductors and smaller. Powdered soap stone or approved spray cream shall be the only lubricant used. 3_6 STRIPPING INSULATION r 3.6.1 Do not ring the cable,always pare or pencil. 3_7 TAPING 3.7.1 If used shall be half lapped synthetic tape. 3_8 CONDUCTORS IN PANELS AND SWITCHBOARDS srr 3.8.1 Conductors in panels, switchboards, and terminal cabinets shall be neatly grouped and formed in a manner to "Fan" into terminals with regular spacing. rw 3_9 CABLE SUPPORTS 3.9.1 Provide conductor support devices as required by code in vertical cable runs. dal NM BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260519-3 MEADOW CREST PLAYGROUND SECTION 260519 PROJECT NO. 11.12.116 WIRES AND CABLES 3.10 RACEWAY SIZES REFERENCED ON DRAWINGS as 3.10.1 Raceways are sized for copper, type THW, unless otherwise noted. Size all Raceways per code unless specifically noted to be larger on the drawings. rrr END OF SECTION Is Is Is a Is Is a Is as Is BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260519-4 as w MEADOW CREST PLAYGROUND SECTION 260526 PROJECT NO. 11.12.116 GROUNDING a PART 1 - GENERAL war 1.1 WORK INCLUDED 1.1.1 A grounding system shall be provided for neutral ground and equipment ground as required by a code. 1.1.2 An isolated grounding system shall be provided for all isolated ground receptacles as allowed by Code (2005 NEC 250-146, paragraph d). ,,,, PART 2 - PRODUCTS err 2.1 GROUNDING CONDUCTORS 2.1.1 Copper, code size, with physical protection where subject to damage. Bare or green insulated. a 2.2 GROUND RODS 2.2.1 3/4" x 8'-0" copper clad steel. 2_3 ISOLATED GROUND BARS a 2.3.1 Provide in all panels containing isolated ground circuits. a PART 3 - EXECUTION a 3_1 GENERAL 3.1.1 Provide all grounding for electrical systems and equipment as required by codes and as specified ow herein. aim 3.2 GROUND RODS 3.2.1 Provide as shown and/or required. Connect the ground conductor to each rod. a 3_3 SIZE OF GROUND WIRE 3.3.1 As required by code. Where ground wire is exposed to physical damage or is used outside of building or underground,protect with rigid non-metallic conduit. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260526- 1 riro MEADOW CREST PLAYGROUND SECTION 260526 PROJECT NO. 11.12.116 GROUNDING 3.4 GROUND CONNECTION OF WATER PIPING as 3.4.1 Metal internal piping shall be grounded, as part of this Contract. This includes jumpers for dielectric fittings. rir 3.5 CONNECTION TO THE GROUND BUS 3.5.1 Provide connections in accordance with the codes; including but not limited to conduit system, switchboard frame, service neutral and electrically operated equipment and devices. No device or equipment shall be connected for electrical service which has a neutral conductor connected to a grounding conductor or to the frame within the device or equipment. 3.6 METHOD OF CONNECTION 3.6.1 Make all ground connections and ground cable splices by thermal welding. Grounding lugs, where provided as standard Manufacturer's items on equipment furnished,may be used. 3.7 FLEXIBLE RACEWAY 3.7.1 Shall not be used for grounding. Install separate ground conductor in all flexible raceway. 3_8 PVC RACEWAY 3.8.1 Install separate ground conductor in all PVC raceway as required per code. 3_9 DROP CORDS 3.9.1 Shall have a grounding wire and be connected with a grounding type plug and receptacle. so END OF SECTION rri BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260526-2 rr� MEADOW CREST PLAYGROUND SECTION 260532 PROJECT NO. 11.12.116 OUTLET AND PULL BOXES wal PART 1 - GENERAL aws 1.1 WORK INCLUDED 1.1.1 Provide outlet and pull boxes to enclose devices, permit the pulling of conductors and for wire splices and branches. rw PART 2 - PRODUCTS 2.1 INTERIOR WIRING 2.1.1 General: Outlet and pull boxes shall be pressed drawn steel, zinc coated with plaster ring where applicable. Welded boxes not allowed. Four-inch size minimum. Large pull boxes shall be fabricated sheet steel,zinc coated or baked enamel finish,with return flange and screw retained cover. 2.1.2 Surface Metal Raceway: Boxes of same Manufacture and to match Raceway. Boxes to accommodate standard devices and device plate. 2.1.3 Concrete and Masonry: Boxes for casting in concrete or mounting in masonry walls shall be the type specifically designed for that purpose. 2.1.4 Install pull boxes so as to be accessible after completion of building construction. 2.1.5 Ceiling outlet boxes shall be galvanized octagonal 4 inch, 1-1/2 inch deep (without fixture stud), 2-1/8 inches deep (with fixture stud). +rr 2.2 EXTERIOR WIRING 2.2.1 Above Grade: Outlet and junction boxes shall be cast or malleable iron or shall be cast of corrosion resistant alloy compatible with Raceway to which it is connected. Pull boxes shall be fabricated of heavy gauge steel and hot dipped galvanized. All boxes shall have gasketed covers. 2.2.2 Below Grade: Where exposed to earth, boxes (handholes) shall be constructed of precast concrete with size, configuration, cover, grates and reinforcing as required by the particular installation. Manufacturer: Similar to Utility Vault 3030LA with base or Fogtite J11 Type 2 with base. Lid shall be H-20 rated where installed in traffic areas. Where not exposed to earth shall comply with Paragraph 2.2.1 above. 2.2.3 Exterior outlet boxes shall be weather resistant and rain tight, with appropriate covers, gaskets and screws. tili BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260532- 1 MEADOW CREST PLAYGROUND SECTION 260532 PROJECT NO. 11.12.116 OUTLET AND PULL BOXES PART 3 - EXECUTION rr 3.1 ANCHORING 3.1.1 All boxes shall be firmly anchored directly or with concealed bracing to building studs or joints. Boxes must be so attached so that they will not "Rock" or "Shift" when devices are operated. 3.2 FLUSH MOUNTING 3.2.1 Except for surface mounted boxes or boxes above accessible ceilings, all boxes shall have front edge (box or plaster ring)even with the finished surface of the wall or ceiling. 3_3 ELECTRICAL OUTLETS 3.3.1 General: Coordinate the work of this section with the work of other sections and trades. Study all Drawings that form a part of this Contract and confer with various trades involved to eliminate conflicts between the work of this section and the work of other trades. Check and verify outlet locations indicated on Architectural Drawings, door swings, installation details, layouts of suspended ceilings and locations of all plumbing,heating and ventilating equipment. 3.3.2 Centered on Built-In Work: In the case of doors, cabinets, recessed or similar features, or where outlets are centered between such features, such as between a door jamb and a cabinet, make these outlet • locations exact. Relocate any outlets which are located off center. 3.3.3 Vertical and Horizontal Relationships: Where more than one outlet is shown or specified to be at the same elevation or one above the other, align them exactly on centerlines horizontally or vertically. Relocate as directed all such outlets (including lighting, receptacle, power signal and thermostat outlets) which are not so installed, at no additional cost to Owner. riir 3.3.4 Device Outlet Height: Measure from the finished floor to the centerline, unless otherwise noted. Switches 4 Feet, Set Vertically Receptacles&Telephone 18 Inches, Set Vertically or as Indicated Other As Noted or as Directed by Architect 3.3.5 Ceiling Location: For acoustical material locate outlet either at the corner joint or in the center of a panel, whichever is closer to the normal spacing. Locate all outlets in the same room in the same panel location. 3.3.6 Installed In Sound Walls: Boxes installed in sound walls shall not be installed back to back. All boxes shall be separated by one stud space and shall be interconnected with flex conduit with a 90° loop. sit rr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260532-2 are MEADOW CREST PLAYGROUND SECTION 260532 PROJECT NO. 11.12.116 OUTLET AND PULL BOXES 3_4 ELECTRICAL WORK IN COUNTERBACKS,MILLWORK AND CASEWORK toi 3.4.1 Provide as shown and/or specified. Provide templates, where required,to other trades for drilling and cutting to insure accurate location of electrical fixtures (outlets and devices) as verified with the Architect. Provide all wiring, devices, plates and connections required by said fixture. 41111 3_5 CONNECTION TO EQUIPMENT is 3.5.1 For equipment furnished under this or other Divisions of the Specifications, or by others. Provide outlet boxes of sizes and at locations necessary to serve such equipment. An outlet box is required if the rr equipment has pigtail wires for external connection, does not have space to accommodate circuit wiring used. Study equipment details to assure proper coordination. 41111 3_6 BLANK COVERS 3.6.1 Provide blank covers or plates over all boxes not covered by equipment. wit 3.7 JUNCTION OR PULL BOXES 3.7.1 Pull and junction boxes shall be installed as shown, and to facilitate pulling of wire and to limit the number of bends within code requirements. Boxes shall be permanently accessible and shall be placed only at locations approved by the Architect. lem 3.7.2 In suspended ceiling spaces, boxes shall be supported from the structure independently from ceiling suspension system. 3.7.3 The Drawings do not necessarily show every pull or Junction Box required. The Contractor is permitted to provide boxes deemed necessary by him for his work when installed in accordance with — these Specifications. 3_8 ELECTRIC WATER COOLER 3.8.1 Conceal the Electrical Outlet behind the unit housing as provided for by the Manufacturer. a• 3_9 BOXES CONTAINING MULTIPLE DEVICES ,rr 3.9.1 Boxes containing emergency and normal devices are permitted only with steel barriers Manufactured especially for the purpose of dividing the box into two completely separate compartments. 3.9.2 Device Boxes Containing Multiple Devices and Wiring Rated Over 150 Volts to Ground and aft Over 300 Volts Between Conductors are permitted only with steel barrier manufactured especially for the purpose of dividing the box into separate compartments for each device having exposed live parts. .r� W BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260532-3 rrr MEADOW CREST PLAYGROUND SECTION 260532 PROJECT NO. 11.12.116 OUTLET AND PULL BOXES 3.10 BOXES IN EARTH iis 3.10.1 Provide for all wire splices and as required to pull conductors. Boxes (handholes) shall be set in place on a 3" sand bed. Coverplates shall be flush to, and match the slope of,the final surface grade. 3.11 COLOR CODING 3.11.1 All Junction Boxes installed in accessible spaces and exposed in unfinished areas shall be color kria coded using spray paint or tape on the box and cover as applicable in the following manner: 277/480-Volt Sand 111111 120/208-Volt Gray Emergency Power Orange Fire Alarm Red Clock& Program Green Intrusion Alarm Yellow Television Rust 11111 3.11.2 The colors shall match the colors used on the Raceway- See Section 260533 11111 3.12 NAMEPLATES 3.12.1 For all line voltage junction boxes, provide engraved nameplate indicating circuit numbering of 111, all wiring in junction box. END OF SECTION ■r rrr rr� tau BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260532-4 MEADOW CREST PLAYGROUND SECTION 260533 PROJECT NO. 11.12.116 RACEWAY Mr PART 1 - GENERAL MN 1_1 WORK INCLUDED 1.1.1 Provide Raceway System complete. MN PART 2 - PRODUCTS N 2_1 GALVANIZED RIGID STEEL CONDUIT(GRS) ■ 2.1.1 General: Hot dipped galvanized. 2.1.2 Fittings: Galvanized malleable iron or noncorrosive alloy compatible with galvanized conduit. Erickson couplings, watertight split couplings (O.Z. type or equivalent) permitted. Running thread or set screw type fittings not approved. Wr 2_2 ELECTRICAL METALLIC TUBING(EMT) 2.2.1 General: Hot dipped galvanized. 2.2.2 Fittings: Raintight; steel or malleable iron type using a split corrugated compression ring and tightening nut or stainless steel locking disc. Steel set screw fittings are acceptable. Indenter, drive-on and pressure cast or die cast type set screw are not acceptable. or 2.3 FLEXIBLE METAL CONDUIT 2.3.1 Dry Locations: 2.3.1.1 General: Galvanized flexible steel for dry locations. 2.3.1.2 Fittings: Malleable iron or steel, Thomas and Betts "squeeze"type or equal. MN 2.3.2 Damp and Wet Locations: 2.3.2.1 Liquid Tight: Polyvinyl chloride (PVC)weatherproof cover over flexible steel conduit. 2.3.2.2 Fittings: Thomas and Betts "Super-Tite" or equal. wr 2_4 SURFACE METAL RACEWAY Iwo 2.4.1 Formed steel or aluminum type. Standard factory finish. Where color choice is available, consult Architect/Engineer for selection prior to ordering. el` BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260533 - 1 MN rye MEADOW CREST PLAYGROUND SECTION 260533 PROJECT NO. 11.12.116 RACEWAY 2.5 RIGID NON-METALLIC CONDUIT(PVC) 2.5.1 Schedule 40 rigid polyvinyl chloride type unless otherwise noted. MO PART 3 - EXECUTION 3.1 GENERAL 3.1.1 Install Raceway concealed in construction unless noted otherwise on the Drawings or specifically approved in writing by the Architect/Engineer. 3.1.2 Cut Raceway ends square,ream and extend maximum distance into all couplings and connectors. 3.1.3 Provide and install manufactured end caps on all Raceway ends during construction to prevent the entrance of water or dirt. Tape, as a cover,not permitted. 3.1.4 Swab out all Raceways before pulling wires. ow 3.1.5 All elbows for GRS and PVC Raceway shall be factory elbows. For all other Raceway, use factory ells for bends of 1-1/4" and larger diameter. 3.1.6 Raceway shall not penetrate sheet metal ducts unless permission is granted by Architect/Engineer. All sleeves shall be provided for Raceway installation. ail 3.1.7 Provide 2 - 3/4" C.O. stub into accessible ceiling space from all recessed panelboards or systems terminal boxes. 3.2 GALVANIZED RIGID STEEL CONDUIT 3.2.1 All Connections shall be watertight. Install for all Raceways in concrete or where subject to damage. 3.3 ELECTRICAL METALLIC TUBING 3.3.1 Install for wiring in masonry, frame construction, furred ceilings and above suspended ceilings. May be used for exposed work in unfinished areas where not subject to damage. Where construction involves masonry work, surface cut masonry units wherever such masonry units are to remain unplastered or uncovered in complete construction. rm 3.4 RACEWAYS UNDERGROUND i 3.4.1 Galvanized rigid steel conduit - painted with two coats of bitumastic paint - or galvanized rigid steel conduit with 15 mil.polyvinyl chloride (PVC)jacket(repair abrasions with PVC base paint or PVC) Ile 11111 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 260533 —2 rw MEADOW CREST PLAYGROUND SECTION 260533 PROJECT NO. 11.12.116 RACEWAY rr 3.4.2 PVC Raceways may be used for underground runs when permitted by code. Field bends, when r.i necessary, shall be formed only with factory recommended heater. Penetrations through floor and walls shall be galvanized rigid steel conduit. PVC, if used, shall be increased in size from that shown to include code required ground wire. Bends in excess of 10 degrees shall be GRS. 014 3.4.3 Arrange and slope Raceways entering building to drain away from building. 3.4.4 Ground wires shall be provided in all PVC Raceway. AN 3_5 INSERTS, SHIELDS AND SLEEVES Furnish and set in place, in advance of pouring slabs and walls, all inserts and sleeves needed to execute Division 26 equipment installation. 3.5.1 Where supports in slabs are required after wall has been poured, use a drilled-in threaded insert, installed as recommended by Manufacturer. 3.5.2 Sleeves shall be provided for all wall penetrations. 3.6 RACEWAYS THAT STUB UP THROUGH FLOOR 3.6.1 Install at such depth that the exposed Raceway is vertical and no curved section of the elbow is visible. ie 3.6.2 PVC Raceway shall not be stubbed through floors. a" 3.7 SEALING OF RACEWAY PENETRATIONS 3.7.1 Exterior Wall Surfaces Above Grade: Seal around all penetrations with caulking approved by Engineer. For concrete construction above ground level, cast Raceway in wall or core drill wall and hard pack with a mixture of equal parts of sand and cement. 3.7.2 Exterior Surfaces Below Grade: Cast Raceway into wall (or floor) or use manufactured seal assembly (such as O.Z.type "FSK") cast in place. 3.7.3 Roofs: Provide mopped, lead,roof jack where Raceway penetrates roof membrane. 3.7.4 Fire Rated Floors, Walls, Ceiling/Roofs: Concrete or masonry, seal around Raceway penetration with Dow Corning 3-6548 silicone RTV foam or approved equal. Plaster or gypsum wallboard, seal around Raceway penetration with plaster, fire tape per local Fire Marshal's requirements. mrr 3.8 SEALING OF RACEWAYS 3.8.1 Seal interior of all Raceways which pass through buildings roofs, floors or through outside walls of the building, above or below grade. Seal on the end inside the building using duct sealing mastic, non- hardening compound type, specially designed for such service to maintain the integrity of the seal of the wall, floor or roof. Pack around the wires in the Raceways. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260533 -3 MEADOW CREST PLAYGROUND SECTION 260533 PROJECT NO. 11.12.116 RACEWAY 3.9 HANGARS FOR RACEWAYS 3.9.1 In suspended ceiling spaces Contractor may, at his option, attach 1/2" or 3/4" EMT Raceways to the ceiling suspension system where such system is structurally suitable; in which case, provide clips manufactured for the purpose. 3.9.2 When more than two Raceways will use the same routing, group together on a patented channel support system (such as Unistrut). 3.10 SURFACE METAL RACEWAY 3.10.1 Install parallel to building surface (i.e., wall, ceiling, floor). Fasten to surface as recommended by Manufacturer. Mount so Raceway is in the least obvious location. 11111 3.11 FLEXIBLE CONDUIT 3.11.1 Flexible conduit shall be used only for connection to motors and equipment subject to vibration with 90 degrees loop minimum to allow for isolation and for lay-in fluorescent fixtures above T-Bar ceilings. For fixture installations, one end of flex must terminate in rough-in junction box. Flex conduit shall not be installed over 6' long or used to connect from fixture to fixture. Use liquid tight for pumps, rr► equipment which is regularly washed down, and equipment in damp locations. Provide ground wire when required by code. 3.12 COLOR CODING 3.12.1 General: Provide color bands of tape or paint one inch (25 mm) wide for Raceways up to two inch (51 mm) in diameter and one-half the Raceway diameter for larger Raceways, applied at panel and pullbox locations within each room, and 50 ft. (15.25 m)on centers within an area. 3.12.2 Color Banding: 120/208 Volt Gray 277/480 Volt Sand Emergency Power Orange Fire Alarm Red Intrusion Alarm Yellow Clock and Program Green Television Rust Low Voltage Switching Black - 3.12.3 The colors shall match the colors used on the boxes - See Section 260533. 3.13 PULL CORDS 3.13.1 Nylon type shall be included in all installed empty Raceway. END OF SECTION BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 260533 -4 rr MEADOW CREST PLAYGROUND SECTION 262416 PROJECT NO. 11.12.116 PAN ELBOARDS err PART 1 - GENERAL 1_1 WORK INCLUDED 1.1.1 Provide all panelboard equipment, complete; dead front type. PART 2 - PRODUCTS 2_1 PANELBOARD TYPE 2.1.1 Panelboards shall be rated at proper voltage and current for intended use with busbars of copper or aluminum. Panels shall be 3-phase,4-wire, 100%neutral, unless noted otherwise. Where aluminum is utilized, all lugs shall be of an approved compression type. Provide multiple lugs where conductors in parallel or"feed through" are shown on the Drawings. 2.1.2 Conductor Connectors shall be bolted to busbars using Grade 5 bolts and Belleville washers. 111111 Feeder conductor connectors shall be rated for 75 Degree C. wire when 75 Degree C. wire is indicated. Where aluminum conductors are utilized for feeders or branch circuits the connectors shall conform with Section 260519. 2.1.3 Panelboards shall have a separate ground bus bonded to the panelboard frame. 2.1.4 Where 120-Volt, 15- or 20-Amp breakers are intended for switching loads they shall be of type rated for switching duty labeled"SWD." 2.2 ACCEPTABLE MANUFACTURERS 2.2.1 General Electric 2.2.2 Square-D 2.2.3 Cutler-Hammer err 2_3 CIRCUIT BREAKERS 2.3.1 The following interrupting capacity, 10,000 AIC Symmetrical shall be considered minimum. Other ratings shall be as specified on panel schedules shown on the Drawings. Series rating of breakers is IN not allowed. 2.3.2 Mount breakers in all panelboards so that breaker handles operate in a horizontal plane. Bolt in rr type only. Provide common trip on all multiple pole breakers. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262416- 1 MEADOW CREST PLAYGROUND SECTION 262416 PROJECT NO. 11.12.116 PANELBOARDS rn 2.3.3 Where noted, provide spare breakers, complete for future connection of wiring circuits. Where "Space" is indicated for breakers, provide all bussing and breaker mounting hardware in the panelboard, provide steel knockouts in dead front metal closure of unused part of panel. If any steel knockouts are removed, provide breakers in such spaces or approved coverplates. Open spaces are not permitted. 1111 2.3.4 For multi-wire branch circuits, provide approved breaker handle ties where required by NEC 210.4. NINN 2.4 CABINET FOR EACH PANELBOARD 2.4.1 Flush or surface, as indicated; tight closing doors without play, when latched. Where two am cabinets are located adjacent to each other in finished areas, provide matching trim of the same height. Where a remote controlled switch or contactor is mounted in any panelboard, mount on same frame as panelboard interior with screw retained access door in dead front shield; common door over circuit ma breakers and remote controlled device. Where flush mounted, provide (2) 1" conduits to accessible ceiling space for future expansion. 2.4.2 All conduits for future expansion shall stub into a junction box, where located above grade, and shall be sealed in the panel. 2.4.3 Provide cabinets of sufficient dimensions to allow for future expansion and addition of circuit breakers within the panelboards as indicated on panel schedules. 2.4.4 Provide cabinet front with full-height hinged door. One door over the interior and an additional hinged dead front cover over interior and wireway (door-in-door). Full-height front cover hinged to box with concealed trim clamps. Provide flush door locks. NW 2.4.5 Provide lock for each cabinet door. All Electrical Distribution Equipment Locks shall be keyed identically. Key system shall match existing. Supply Owner with minimum six keys. 2.4.6 Fasten panelboard front with machine screws with oval counter-sunk heads, finish hardware quality, with escutcheons or approved trim clamps. Clamps accessible only when dead front door is open are acceptable. Surface mounted panelboards with fronts greater than 48 inches vertical dimension shall be hinged at right side in addition to hinged door over dead front. 2.4.7 Finish: Provide factory prime coat for cabinets to be located in finished areas. Where cabinets are located in unfinished areas, standard lacquer or enamel finish, gray or blue-gray color, shall be substituted ea for factory prime coat. 2.5 SYSTEM OF NUMBERING AND BUS ARRANGEMENT 2.5.1 Shall be as shown on the Panel Schedules on the Drawings. wr BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262416-2 UI MEADOW CREST PLAYGROUND SECTION 262416 PROJECT NO. 11.12.116 PANELBOARDS 2_6 PANELBOARD NAMEPLATE 2.6.1 Provide engraved and filled(or color layer- engraved through outer layer)plastic nameplate with '/2-inch high characters (for panel name); attached with screws to each NEMA 1 panelboard front. White on black, include voltage,phases,wires and minimum A.I.C. Rating in 3/8-inch characters. 2.6.2 Nameplate color shall be: 2.6.2.1 Emergency System: White letters on red 2.6.2.2 Normal System: White letters on black wr PART 3 - EXECUTION air 3_1 MOUNTING 3.1.1 Secure in place with top of cabinet at 6'-0", unless otherwise noted. Top of cabinet and trim shall be level. Firmly anchor cabinets directly or with concealed bracing to Building Structure. When panels are not located in or directly on a wall, provide a support frame of formed steel channel which is anchored to the floor and Ceiling Structure. Interiors shall not be installed until Structure is totally enclosed. Where panels are mounted adjacent to each other,the top edges shall be at the same height. 3_2 CIRCUIT INDEX 3.2.1 For each branch circuit panelboard provide a typewritten index listing each circuit in the panelboard by number with its proper load designation. Mount with a transparent protective cover inside cabinet door. Listing shall match circuit breaker arrangements,typically with odd numbers on the left and even numbers on the right. Room numbers used shall be final room numbers used in the building as verified with the Owner, and not room number assigned on Plans. 3.3 CABINET PAINTING 3.3.1 Cabinets furnished as prime painting shall be field painted to match color of adjacent wall. (See Division - Painting). 3.4 SPACE rr 3.4.1 Verify space available with equipment sizes and Code Required Working Clearances prior to Submittal of Shop Drawings. 3_5 GROUNDING 3.5.1 Provide separate ground busbar for all panels supplying isolated ground circuits. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262416-3 +rr MEADOW CREST PLAYGROUND SECTION 262416 PROJECT NO. 11.12.116 PANELBOARDS ow 3.6 FEED THROUGH AND DOUBLE LUGS 3.6.1 Provide feed through or double lugs with amperage equal to the incoming feeder amperage unless shown as larger. sir END OF SECTION as am oft me mit ■oi rrr via BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262416—4 rre rrr MEADOW CREST PLAYGROUND SECTION 262419 PROJECT NO. 11.12.116 MOTOR CONTROLLERS wr PART 1 - GENERAL .w L1 WORK INCLUDED 1.1.1 Work under this section includes all requirements for motor controls to be furnished under the electrical portion of the work on all electrical motor driven equipment. Individually mounted starters shall be provided by Division 26 Contractor. Motor controls shall conform to NEMA Standards for each specific purpose. air 1.1.2 The Division 26 Contractor shall furnish all motor controllers not included with equipment furnished under other divisions of these specifications or by Owner. The Division 26 Contractor shall install all motor controllers including all controllers not factory assembled into equipment furnished under other divisions of these specifications or by Owner. 1.2 MOTOR VOLTAGE INFORMATION 1.2.1 Voltages available are 480 Volt, 3 phase or 208 Volt, 3 Phase, and 115 Volt Single Phase. 1.2.2 Circuits are designed(in general) for motors as follows: 1.2.3 Smaller than 1/2 H.P. - 115 Volts, Single Phase 1/2 H.P. and larger-460 or 200 Volts, 3 Phase 1.2.4 Verify motor sizes and voltages provided under other divisions and notify General Contractor immediately if any discrepancies are noted. ■r 1_3 REGULATORY REQUIREMENTS 1.3.1 Provide motor protection switches of the appropriate NEMA size. For units not using NEMA rating, use equivalent NEMA size. PART 2 - PRODUCTS ern 2.1 MOTOR STARTERS riw 2.1.1 Magnetic Motor Starters: Unless noted otherwise, shall be full voltage non-reversing with three overloads sized to suit nameplate amperes of motor served, motor "On" and "Off' pilot lights, "Hands- Off-Auto" switch, and auxiliary contacts for interlocking. 2.1.2 Combination Motor Starter/Disconnect: Shall be fused switch type with all features of Paragraph A above. In addition, provide disconnect switch auxiliary contacts for disconnection of externally powered control circuits where applicable. Fuses shall be sized in accordance with motor manufacturer's requirements. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262419- 1 No OW MEADOW CREST PLAYGROUND SECTION 262419 PROJECT NO. 11.12.116 MOTOR CONTROLLERS as 2.1.3 Manual Starters: Shall be toggle switch type, lockable in the "Off' position, with overload relays, pilot light and enclosure pursuant to Paragraph D below. Manual starters shall only be used where �rw specifically shown or called out on the drawings and only for single phase, fractional horsepower motors. 2.1.4 Enclosures: All motor controllers shall be contained in an enclosure suitable for the environment in which the controller is mounted,and shall be weatherproof when exposed to weather. 2.1.5 Overload Devices: Shall be melting alloy or bimetallic type. One overload shall be provided for each phase. Provisions shall be made for resetting the overload devices from outside the starter enclosure. 'b Provide ambient compensated overload devices only when the motor is at a constant temperature and the controller is subject to a separate, varying temperature. Automatic reset overload devices are not permitted. 2_2 ACCEPTABLE MANUFACTURERS 2.2.1 Square D 2.2.2 Allen Bradley m 2.2.3 General Electric 2.2.4 Cutler-Hammer 2.2.5 Siemens 2.3 NAMEPLATES 2.3.1 Pursuant to Section 260000, Paragraph 2.5, provide nameplates permanently attach (with screws on NEMA 1 enclosures) on each controller, nameplates with the following information: Load served, voltage,phase, panel,circuit number and where applicable fuse size and type. a 2_4 FAN SHUTDOWN RELAYS 2.4.1 Contractor shall provide relay(s)with sufficient contacts to shutdown all fans over 2000 cfm upon receipt of Fire Alarm. See Section 283100. Coordinate coil voltage with Fire Alarm System Supplier. op 2_5 POWER FACTOR CORRECTION a 2.5.1 Provide power factor correction capacitors for all motors 25 horsepower and above. Capacitor size when indicated on the drawings is an approximation only. Final size shall be determined by the Contractor based on the recommendations of the motor manufacturer to bring the power factor to between a 0.9 and 0.95. All capacitors are to be fused, with blown fuse indicators mounted on the front of the unit. Provide discharge resistors when required by code. a BLRB ARCHITECTS 04/02/13 a BCE ENGINEERS, INC. PAGE: 262419-2 a MEADOW CREST PLAYGROUND SECTION 262419 PROJECT NO. 11.12.116 MOTOR CONTROLLERS PART 3 - EXECUTION 3.1 FINISHED AREAS 3.1.1 In finished areas, mount motor protection switches flush and install suitable coverplates. 3.2 HEATERS 3.2.1 Install heaters co-related with full-load current of motors provided. 3.3 OVERLOADS 3.3.1 Set overload devices to suit motors provided. 3.4 SUPPORTS 3.4.1 Securely mount to equipment, wall or acceptable mounting frame. 3_5 FAN SHUTDOWN WIRING 3.5.1 Provide wiring interlock connections for all (over 2000 cfm) fan starter control circuits via Division 23 furnished fan shutdown relay to shutdown fans upon receipt of Fire Alarm. 3_6 FAN SHUTDOWN WIRING 3.6.1 Provide wiring interlock connections for all (over 2000 cfm) fan starter control circuits via to shutdown fans upon receipt of Fire Alarm. 3_7 CONNECTION TO MECHANICAL EQUIPMENT ON ROOFS 3.7.1 The Contractor shall coordinate all roofing penetrations with the general contractor and roofing contractor to assure that the roofing warranty is maintained. 3.7.2 Attachment of conduits to the roof to serve mechanical equipment and devices shall comply with Section 260533. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 262419-3 rr a MEADOW CREST PLAYGROUND SECTION 262419 PROJECT NO. 11.12.116 MOTOR CONTROLLERS a 3.8 MECHANICAL EQUIPMENT NAMEPLATE RATINGS 3.8.1 The Division 260000 Contractor shall verify that the nameplate ratings of the mechanical equipment, when they arrive on site, are consistent with the ampacity called out on the drawings. The Contractor shall bring any discrepancies to the Engineers attention prior to installation of conduit and kes wiring. END OF SECTION a a err a a a a a a a a BLRB ARCHITECTS 04/02/13 a BCE ENGINEERS, INC. PAGE: 262419-4 err MEADOW CREST PLAYGROUND SECTION 262726 PROJECT NO. 11.12.116 SWITCHES AND RECEPTACLES PART 1 - GENERAL 1_1 WORK INCLUDED 1.1.1 Provide all wiring devices and plates. Igo 1.1.2 No push-in terminals allowed. 1.1.3 All devices color shall be ivory, unless otherwise noted. PART 2 - PRODUCTS 2_1 ACCEPTABLE MANUFACTURERS 2.1.1 Hubbell ,rr 2.1.2 Pass& Seymour 2.1.3 Leviton wr 2.1.4 Cooper 2.2 SWITCHES 2.2.1 "Industrial Specification Grade", quiet type, rated 277 volt, 20 amp, unless noted, with plastic rr handle. Single pole, double pole, 3-way, or locking type as required. Meets Fed. Spec. WS-896 Provide matching styles and colors in other devices as required for the conditions of installation. Hubbell CS1221, Cooper CSB120, Leviton 1221, and P&S 20AC1 2.2.2 Interchangeable type shall be rated same as above. 2.2.3 Momentary Contact Line Voltage Switches: Single pole, double throw, 3-wire, normally open. am Rating same as above. 2.2.4 Magnetic Low-Voltage Dimmer: Dimmer switch shall be listed for use with magnetic Iow- a' voltage light fixtures. Dimmer switch shall have a vertical slide with a positive"off'button. The dimmer shall be rated for a minimum of 1500VA. Dimmer shall have a radio/TV interference filter. Leviton `Renoir' series. rrr 2.2.5 Fluorescent Dimmer: Fluorescent dimmer switch shall be rated at 1200VA (900 Watts maximum loading), 120V or 277V, 60 hertz. Dimmer switch shall have a vertical slide with positive "off' button. Suitable for single-pole and 3-way. Dimmer shall have a radio/TV interference filter. Dimmer shall be gur matched with electronic dimming ballast. See specification section 265000. Leviton `Renoir' series. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS,INC. PAGE: 262726- I rrr MEADOW CREST PLAYGROUND SECTION 262726 PROJECT NO. 11.12.116 SWITCHES AND RECEPTACLES 2.2.6 Key Operated: Hubbell HBL I22 I L (or equal)with 1209 Key. Provide 24 spare Keys. 2.2.7 Timer Switch: Provide electronic light timer switch where indicated on drawings. The timer switch shall be connected to the room lighting and fan. The timer switch shall be programmable for time- out from 5 minutes to 2 hours. Set timer for standard 20 minutes time-out period, time scrolls up, flash off, beeper on. Manufacturer: Watt Stopper—Inteli-switch Digital Time Switch. 2.2.8 Motor rated switches: Switches serving as motor disconnecting means shall be horsepower rated raik with overload relays and meet requirements as stated above. See manual starters in Section 26 24 19, `Manual Starters'. 2.2.9 Device plates shall be Hubbell and Cooper Type 302 stainless steel. 2_3 RECEPTACLES „r 2.3.1 "Industrial Specification Grade", Duplex NEMA 5-20R configuration (20-Amp, 120-Volt) unless shown otherwise. Must have "rivetless ground" contact manufactured as an integral component of the external ground screw terminal. Meets Fed Spec. WC-596 Hubbell HBL5362, Cooper 5362, P&S 'i' 5362A, and Leviton 5362. 2.3.2 Ground-Fault Circuit-Interrupter Duplex Receptacles: NEMA 5-20R. Hubbell GF20ILA, and rr� Cooper VGF20, for 20 Amp, 125-Volt AC. Provide GFI receptacles where required by code. 2.3.3 Duplex NEMA 5-20R configuration, isolated ground, orange color. Leviton 5362 IG, and rir Cooper 1G5362. 2.3.4 Tamper resistant, Duplex NEMA 5-20R configuration. Hubbell BR20ITR, Leviton 5362-SGI, and Cooper TR8300. 2.3.5 Weather Resistant(WR) / Ground Fault Circuit-Interrupter (GFCI) Outdoor Duplex Receptacles: NEMA 5-20R. Hubbell GFTR201 or equal, for 20 Amp, 125-Volt AC. 2.3.6 Special Purpose Receptacles: For special purpose receptacles, see drawings for voltage, amperage, and phase. Provide with matching plug delivered to the Owner. 2.4 DEVICE PLATES 2.4.1 Interior: Plates for receptacles other than NEMA 5-20R shall have ampere rating, voltage and phase engraved in the plate. Plates for recessed boxes shall be Hubbell and Cooper Type 302 stainless steel. Attachment screws shall match finish of plate. Plates for surface mounted boxes shall be of pressed stainless steel with size to fit exactly the box used. 2.4.2 Exterior: Intermatic#WP1010MC, for vertical mount and#WP1010HMC for horizontal mount, or equivalent for receptacles. Metal cover shall be raintight while-in-use. mai mit BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262726-2 MEADOW CREST PLAYGROUND SECTION 262726 PROJECT NO. 11.12.116 SWITCHES AND RECEPTACLES 2_5 MULTIOUTLET ASSEMBLY(WHEN SHOWN) v�r 2.5.1 Provide assemblies complete, including necessary fittings and hardware with circuits as indicated on Plans and outlet spacing as indicated. All assemblies shall contain ground wire. Wiremold or equal. 2_6 LOW VOLTAGE CONTROL(WHEN SHOWN) 2.6.1 General Electric or approved equal. Relays G.E. Type RR-7 Switches G.E. Type RTS-5 Transformers G.E. Type RTl and RT2 Rectifiers G.E. Type RA16 Plates as noted herein 2.6.2 Wire shall be copper conductor as made for that purpose by Supplier of low voltage relays and switches. 2.7 SPARE DEVICES 2.7.1 Provide the following spare devices: O ,,f Device Quantity Single-pole switch 3 Duplex receptacle 5 1111 Dedicated duplex receptacle 5 GFI receptacle 3 20A, single-phase equipment connection 5 20A,three-phase equipment connection 3 2.7.2 Each spare device shall include 100 feet of conduit, wire,faceplate and labor; all as required for a complete installation. Location of these units to be determined by the Owner's representative at the site. Unused devices shall be turned over to the Owner. PART 3 -EXECUTION 3.1 MOUNTING 3.1.1 Rigidly fasten each device to the outlet box at proper position with the wall to bring receptacle rr flush with plate or switch handle the proper distance through the plate. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262726-3 air arr�r►.. iM MEADOW CREST PLAYGROUND SECTION 262726 PROJECT NO. 11.12.116 SWITCHES AND RECEPTACLES 3.2 ORIENTATION air 3.2.1 Set Switches vertical with handle operating vertically, up position "ON" at +48" above finished floor. rir 3.2.2 Set Receptacles vertical with ground slot down at+18" above finished floor. 3.2.3 Set Exterior Receptacles horizontal at+18" above finished grade. 3.3 DEVICE PLATES 3.3.1 Shall be stainless steel for each new wiring device and for each telephone and signal equipment outlet, except where equipment mounted thereon covers the outlet box completely. 3.3.2 Provide new covers on existing outlet boxes being reused. 3.4 DIMMER SWITCHES 3.4.1 Provide a separate neutral for each phase. 3.4.2 Fluorescent dimmer switches require a 4 square backbox per switch. 3.5 RECEPTACLE GROUNDING 3.5.1 Provide bare bonding wire between receptacle grounding terminal and box. Plaster ear screws connecting frame to the box will not be acceptable for grounding. 3.5.2 Provide green insulated grounding conductor in all branch circuits supplying isolated ground and ground-fault circuit-interrupter type receptacles. rrr 3.6 HANDICAPPED ACCESS rrr 3.6.1 Comply with requirements of Washington State Handicapped Access Code. END OF SECTION err BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 262726-4 re MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING rr PART 1 - GENERAL 1_1 WORK INCLUDED 1.1.1 Provide the lighting system complete and operational. 1.1.2 Recessed fixtures installed in fire-resistive ceiling construction shall have the same fire rating as the ceiling or shall be provided with fireproofing boxes having materials of the same fire rating as the ceiling. 1_2 FIXTURE SCHEDULE MANUFACTURER'S SERIES NUMBERS 1.2.1 Are a design series reference and do not necessarily represent the number, size, wattage or the type of lamp,ballast or special requirements as specified hereinafter. 1_3 SUBMITTALS 1.3.1 Shall be neatly and clearly marked to indicate the fixtures, lamps and ballasts fully comply with contract documents. When substitute fixtures are submitted (if permitted) the data shall clearly cross reference (written or highlighted) that the substitute fixture complies with every detail of the specified fixture. Fixtures not fully complying with contract documents are not permitted. Nav PART 2 - PRODUCTS .ve 2_1 METAL PARTS 2.1.1 Interior Fixtures: Steel or aluminum with 300°F, baked enamel finish, brushed aluminum with baked acrylic clear lacquer finish, or stainless steel with a brushed finish, manufacturer's standard color unless specified otherwise. 2.1.2 Exterior Fixtures: Corrosion resisting metal, a (non-ferrous, stainless steel or special finish) and in all cases suitable for outdoor service without tarnishing or other damage due to exposure; manufacturer's standard colors unless specified otherwise; cadmium plate all metal parts concealed by canopies, including screws, plates and brackets. All exposed fasteners shall be tamperproof. am 2.2 LIGHT TRANSMITTING COMPONENTS rrr 2.2.1 Virgin acrylic plastic (0.125-inch thick overall minimum) or glass. Shall be contained in a steel frame hinged and which remains attached to the fixture when door is in open position. ire BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000- 1 rr as MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING 2.3 SPECIAL PARTS rr� 2.3.1 Adapters, Plates, Brackets and Anchors: Provide where required by construction features of the building to suitably mount lighting fixture. All such appurtenances and mounting methods shall be approved by the Architect/Engineer prior to fabrication and installation. Oil 2.4 LAMPS us 2.4.1 General Electric, Sylvania or Philips. All lamps supplied shall be by the same manufacturer. 2.4.2 Provide for each fixture in the exact number and type for which the fixture is designed or as ONO noted. 2.4.3 Fluorescent Type: so 2.4.3.1 Bi-pin,T-8 rapid start;color temperature of 3500 K; CRI 85; average life of 40,000 hours. 2.4.3.2 Lamps shall be "matched" with provided ballast and provided with a lamp ballast me combination 5-year warranty. 2.4.4 Compact Fluorescent Type: r � 2.4.4.1 Twin tube, double twin tube,triple tube; 4-pin, amalgam, color temperature of 3500 K; CRI 82; average life of 10,000 hours. (Sylvania—Dulux T/E/IN). 2.4.4.2 Biax; 4-pin, color temperature of 3500 K; CRI 82;high lumen output. (Sylvania—Dulux L) wr 2_5 SOCKETS 2.5.1 Porcelain, medium base except where mogul base lamps are standard for the fixture specified. 2.6 BALLASTS-FLUORESCENT (ELECTRONIC) era 2.6.1 Suitable for lamp type employed and approved by Lighting Design Lab specification committee. 2.6.2 Acceptance Manufacturers: 2.6.2.1 Advance 2.6.2.2 Magnetek 2.6.2.3 Motorola 2.6.2.4 Osram/Sylvania 2.6.3 UL and CBM labels. INO BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000-2 MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING 2.6.4 Low temperature and/or outdoor application. Provide ballasts suitable for low temperature where outdoors or space ambient is expected to be below 50°F. 2.6.5 Electronic ballasts shall be high power factor, greater than 95% and total harmonic distortion (THD) less than 20%. Provide for operation with T-8 and BIAX lamps. "A" sound rating. Neutral wire to be used in lighting circuit associated with electronic ballasts shall be#10 AWG CU. 2.6.6 All ballasts shall have integral overload protection. .�r 2.6.7 All ballasts shall be provided with a UL listed factory pre-installed ballast disconnect. rr 2.6.8 Ballasts for T8 fluorescent lamps: 2.6.8.1 Advance "Optanium" Series or Equivalent programmed rapid start. 2.6.8.2 Ballast factor of 98% or greater. 2.6.8.3 "A" sound rating for 265 MA. (T8 lamps). 2.6.8.4 The ballast shall operate at a frequency below 30 Khz or above 40 Khz without visible flicker. gin 2.6.8.5 Shall be designed for use with occupancy sensors by providing up to 30,000 lamp starts. The ballast shall heat the lamp cathodes to 650 degree C with no glow current before applying arc voltage to the lamp. 2.6.8.6 Electronic ballast harmonic distortion and current shall be less than 10% THD. 2.6.8.7 Where fluorescent light fixtures are to be located outside, the ballast shall be capable of 0 degree F. lamp ignition. 2.6.8.8 Five Year Warranty,for"matched" lamp and ballast combination. 2.6.9 Ballasts for 5 to 30 Watt Compact Fluorescent Lamps: 2.6.9.1 Motorola "Gold" Edition rapid start or Equivalent. 2.6.9.2 Electronic,4-pin. err 2.6.9.3 Ballast factor of 98% or greater. 2.6.9.4 "A" sound rating. 2.6.9.5 The ballast shall operate at a frequency below 30 Khz or above 40 Khz without visible flicker(high frequency operation). 2.6.9.6 Electronic ballast harmonic distortion and current shall be less than 10% THD. 2.6.9.7 Minimum starting temperature—5 degree F/-20 degree C. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000-3 irr MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING eas 2.6.9.8 Five Year Warranty. 2.6.10 Fluorescent dimming ballasts: Provide high frequency electronic ballasts suitable for triple & quad tube compact lamps, long twin tube lamps and T8 lamps. Dimming ballasts shall have 100% to 5% full range continuous dimming with programmed start, lamp end-of life (EOL) detection system for compact fluorescent lamps, and operate above 40 KHz. Ballast shall be less than 10% total harmonic distortion at maximum light output. Dimming ballasts shall be suitable for use with dimming controls. See specification section 26 27 26 for specified dimmers. 0-10V dimming. Advance Mark 7 or ow equivalent. 2.6.11 Generator Transfer Device: Transfer device shall be installed integral to each light fixture and shall automatically transfer power from the normal power source to the emergency circuit upon loss of normal power. Bodine#GTD 2.6.11.1 Where the transfer device can not be mounted in the light fixture and the transfer device is or indicated to control more than (1)light fixture on the same switch leg,provide Bodine#GTD20A. 2.6.11.2 The device shall be capable of bypassing the local switching means when normal utility sir power has been lost. The device shall consist of a test switch, a normal power indicator light and an alternate power indicator light. The unit shall be contained within its own enclosure, suitable for mounting on the wall and above accessible ceilings. The device shall be able to accommodate up to 20 amps of lighting load. 'i' 2.7 LED LIGHT ENGINE AND DRIVER wr 2.7.1 All drivers shall operate with standard 0-1 OV dimming. ✓rt 2.7.2 LM-79 and LM-80 listing. 2.7.3 5-year warranty for LED's and drivers. ■r 2.7.4 All drivers shall contain integral overload protection. 2.7.5 All drivers shall be provided with a UL listed factory pre-installed disconnect. 2.8 HANGING FOR PENDANT FIXTURES as 2.8.1 Rigid type, with not less than 5 thread engagement at each end, consisting of iron pipe, with brass or aluminum tubing casing, or painted tubing not less than 0.040 inches thick. gig 2.8.2 Provide a canopy for each fixture hanger except where fixture conceals the outlet box directly without a canopy. 2.8.3 Provide a safety chain for all glass pendant fixtures and for all fixtures mounted in gymnasiums. me BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000-4 a MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING 2_9 OUTDOOR LIGHTING STANDARDS au 2.9.1 Provide watertight insulating fuse in the base of lighting standards to individually protect each lighting fixture; buss Style "HEW' or approved, waterproof fuseholder with Buss fuse of appropriate capacity and voltage. Provide fuse for each hot circuit wire;do not fuse neutral. fa 2.9.2 Provide concrete foundations as shown on drawings. Field verify locations with Architect prior to installation of bases. 2.10 OUTDOOR GROUND MOUNTED LIGHTING FIXTURES rir 2.10.1 Provide concrete foundations for mounting of ground mounted lighting fixtures. Foundation shall be a minimum of 6" deeper than the light fixture and a minimum of 6" all around the base of the fixture. Provide #4 rebar with 3" minimum ring ties at 8" on center. The #4 rebar shall be vertically spaced approximately 6"apart. Field verify locations with Architect prior to installation of bases. '°"" 2.11 EXIT SIGNS 2.11.1 Fronts: Cutout stencils made of minimum #20 gauge sheet steel or sheet aluminum with red glass or plastic back of the cutout. Mount fronts either on concealed hinges or pull-out type with chain catch. Removable cutout arrows shall indicate direction of travel. arm 2.12 OCCUPANCY SENSORS 2.12.1 Provide occupancy sensor switches for control of lighting in classrooms as shown on the drawings. Sensors shall be ceiling mounted to provide adequate coverage. Occupancy sensor shall be "Sensor Switch" Model CM-PDT-R, complete with power pack PP-20-20P, Auxiliary Relay SP-20-20P and associated mounting hardware. Sensors shall be wired and installed per manufacturer's direction to maintain switching and circuits shown on drawings. Where multiple sensors are located in an individual room, sensors shall be wired parallel with the relays such that either sensor will provide input to turn all lights on and reset time delay. Where occupancy sensors are shown on the drawings to be wall mounted, provide WSD or approved equal. rw PART 3 - EXECUTION 3.1 LIGHTING FIXTURES-GENERAL err 3.1.1 Size and mounting height from finished floor to bottom of fixture as indicated on the drawings. Verify mounting provisions prior to the ordering of fixtures. Fixtures shall be UL listed for the location, and application in which they are installed. 3.1.2 Ceiling fixtures shall be coordinated with and suitable for installation in, on or from the ceiling as ellshown. Installation and support of fixtures shall be in accordance with NFPA 70 and manufacturer's recommendations. BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000-5 MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING as 3.1.3 Recessed fixtures installed in seismic areas shall be installed utilizing specially designed seismic clips. um 3.1.4 Suspended fixtures installed in seismic areas shall have 45% swivel hangers and shall be located with no obstructions within the 45% range in all directions. The stem, canopy and fixture shall be capable rie of 45% swing. 3.2 DIFFUSERS AND ENCLOSURES 3.2.1 Install lighting fixture diffusers only after construction work, painting and clean up are completed. Prior to final acceptance, remove all lamps, reflectors and diffusers, wash,rinse and reinstall. +rr 3_3 ADJUSTMENT OF FIXTURES 3.3.1 Make all final spotlight and adjustable light settings under the direction of the Architect/Engineer during a scheduled period of time prior to the completion of the project. Include costs for all equipment and personnel expenses required for adjustment. 3.3.2 For fixtures with indirect lighting, notify Engineer prior to installation of any circumstance where the fixture lamp source will be within 12"of ceiling. 3_4 SUPPORT OF FIXTURES ,w 3.4.1 Surface or Pendant Type: Attach to heavy formed steel straps attached to the outlet box by means of threaded stems with locknuts, or directly to the outlet box where the fixture is specifically so designed. 3.4.2 Recessed Type: Mount in frames suitable for the ceiling, with the recessed portion of the fixture securely supported from the ceiling framing. For fixtures supported by a ceiling suspension system, provide two safety chains secured to structural members above suspended ceiling. 3.4.3 For All Fixtures: Ballasts and/or drivers shall be accessible. as 3.5 SUPPORT OF FLUORESCENT FIXTURES 3.5.1 Recessed Troffer Type: For fixtures supported by the ceiling suspension system, provide integral as tabs, which rotate into position after fixture is lifted into the ceiling cavity. Provide two safety chains secured to structural members above suspended ceiling. Circuit connection shall be through use of 60- inch flexible conduit from a rigidly supported junction box. For plaster or GWB ceilings, provide a rr plaster frame compatible with light fixture. 3.5.2 Recessed Downlight Type: Mount in frames suitable for the ceiling, with the recessed portion of the fixture securely supported from the ceiling framing. For fixtures supported by a ceiling suspension system,provide two safety chains secured to structural members above suspended ceiling. ar BLRB ARCHITECTS 04/02/13 as BCE ENGINEERS, INC. PAGE: 265000-6 as - 3 MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING 3.5.3 Surface and Pendant Mounted Type: mr 3.5.3.1 Where mounted on accessible ceilings, hang from structural members by means of hanger rods through ceiling or as approved. 3.5.3.2 Where ceiling is of insufficient strength to support weight of lighting fixture, provide additional framing to support as required. Fixtures shall be supported from structure with seismic bracing independent of ceiling. 3.5.3.3 For Pendant Mount Type: Provide a unistrut channel for mounting fixtures entire fixture length unless light fixture is designed specifically for supporting itself. Provide 3/8-inch thread rod secured to structural members for support of unistrut channel. 3.5.3.4 Continuous Runs of Fixtures: Straight when sighting from end to end, regardless of irregularities in the ceiling. Where fixtures are so installed, omit ornamental ends between sections. 3.6 LOCATION 11111 3.6.1 Mount to the dimensions shown on the drawings. Mount at quarter points where no dimensions appear. Architect shall specify mounting locations where no dimensions appear and quarter point Will mounting is impractical or not indicated on the drawings. 3.6.2 Refer to details, mechanical drawings, and coordinate with mechanical Contractor for equipment and ductwork mounted in ceilings to prevent conflict with light fixtures prior to installation. If conflicts cannot be resolved with the Mechanical Contractor, notify Architect/Engineer. wit 3.7 SPARE PARTS 3.7.1 Ballast Fuses: Provide twenty (20) spare fuses of each size used, packaged and marked to identify fixture type where used. 3.7.2 Fixture Diffusers: Provide ten (10) or 10% (whichever is less) spare diffusers of each size and type used, packaged and marked to identify fixture used. 3.7.3 Fixture Glass: Provide ten (10) or 10% (whichever is less) spare glass of each size and type used, packaged and marked to identify fixture type. trr 3.7.4 Lamps: Provide Forty (40) spare T-8 lamps, Twenty (20) spare T-5HO lamps, and ten (10) or 10 % spare (whichever is less)of each other lamp type. 3.8 SPARE FIXTURES 3.8.1 Provide the following spare devices: Item Quantity EX1 4 BLRB ARCHITECTS 04/02/13 BCE ENGINEERS, INC. PAGE: 265000-7 NM r MEADOW CREST PLAYGROUND SECTION 265000 PROJECT NO. 11.12.116 LIGHTING ■r 3.8.2 Spare fixtures shall include 100 feet of conduit, wire, miscellaneous appurtenances, and all labor, as required for a complete installation. Location of these units to be determined by the Owner's •r representative at the site. Unused devices shall be turned over to the Owner. 3.8.3 Self-Luminous Exit Sign: Provide (4) four Self-Luminous Exit Signs Lithonia # DSWIX Green tog or Red to match EX-1. Install al locations as directed by Architect. 3.9 CONCRETE FOUNDATIONS kW 3.9.1 Install at locations shown taking care to provide soil compaction same as required under paving to avoid settling and tilting of pole. Provide for all steel, concrete or aluminum poles shown. Concrete ris foundations shall have a minimum raceway sweeps of 90 degrees and anchor bolts shall be accurately set in foundations using a template supplied by the pole manufacturer. Concrete work and grouting; see Division 03 of the specifications. When concrete work has cured, base plates shall be leveled and grouted in place. Pole anchor bases shall then be set on base plates, leveled plumb on foundations, and secured with holding nuts. 3.10 SWITCHING FLUORESCENT FIXTURES 3.10.1 Provide two level switching of all three and four lamp fluorescent fixtures such that the center rr` lamp(s) are on one switch and the outer lamps are on another. Required switchlegs in fixture flex connection "whips" are not shown on the drawings. Provide number of ballasts required to accomplish two level switching. 3.11 FIXTURE TENTING rm 3.11.1 Contractor shall coordinate ceiling types with architectural drawings and specifications and provide equivalent fire rated enclosures above all light fixtures which penetrate rated ceilings. go END OF SECTION am am am BLRB ARCHITECTS 04/02/13 am BCE ENGINEERS, INC. PAGE: 265000-8 rw as MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION aim PART 1 - GENERAL 1.1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1_2 SUMMARY aro 1.2.1 In general, work of this section includes, but is not limited to the following: 1.2.1.1 Protecting existing vegetation to remain. go 1.2.1.2 Removing existing trees and other vegetation within clearing limits. 1.2.1.3 Clearing and grubbing within project limits. 1.2.1.4 Removing surface features including, but not limited to concrete, asphalt, concrete retaining walls, fences, etc. 1.2.1.5 Disconnecting, demolition,and capping existing utilities. 1.2.1.6 Protect existing utilities to remain. 1.2.2 Related Sections: urr 1.2.2.1 Division 01 Section 015000 "Temporary Facilities and Controls" for temporary utility services, construction and support facilities, security and protection facilities. ON 1.2.2.2 Division 31 Section 312513 "Erosion Control"for temporary erosion control measures and requirements of the National Pollutant Discharge Elimination System (NPDES) under the Washington State Department of Ecology's (DOE) General Permit for Stormwater Discharges from ara Construction Activities. 1.2.2.3 Division 31 Section 312000 "Earth Moving"for soil materials, excavation,backfilling, and V,,, site grading. rr 1.3 DEFINITIONS 1.3.1 Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms. arr 1.3.2 Surface Soil: Soil that is present at the top layer of the existing soil profile at the Project site. In undisturbed areas,the surface soil is typically topsoil; but in disturbed areas such as urban environments, the surface soil can be subsoil. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000- 1 wr MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION 1.3.3 Utilities: Underground pipes, vaults, conduits, ducts, and cables, as well as underground services within buildings. 1.3.4 Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected during el"` construction, and indicated on Drawings. 1.3.5 Vegetation: Trees, shrubs,groundcovers,grass,and other plants. 1.3.6 Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other manmade stationary features constructed above or below ground surface. 1.4 MATERIAL OWNERSHIP 1.4.1 Except for materials indicated to be stockpiled for reuse or otherwise indicated to remain Owner's property, cleared materials shall become Contractor's property and shall be removed from Project site. 1.5 SUBMITTALS so 1.5.1 Submit under provisions of Division 01 Section 013400 "Shop Drawings, Product Data & Samples." rrr 1.5.2 Existing Conditions: Documentation of existing trees and plantings, adjoining construction, and site improvements that establishes preconstruction conditions that might be misconstrued as damage caused by site clearing. 1.5.2.1 Use sufficiently detailed photographs or videotape. 1.5.2.2 Include plans and notations to indicate specific wounds and damage conditions of each tree or other plants designated to remain. 1.5.3 Record Drawings: Identifying and accurately showing locations of capped utilities and other subsurface structural,electrical, and mechanical conditions. rri 1.6 QUALITY ASSURANCE 1.6.1 Maintain at least one copy of the WSDOT Standard Specifications for Road, Bridge, and „�i Municipal Construction,2008 edition, and project plans and specifications onsite. 1.6.2 Field inspection and testing will be performed under provisions of Division 01 Section 014600 "Testing Laboratory Services." 1.6.3 Field inspection of Erosion Sediment Control measures will be performed by the Contractor as required by City of Renton and DOE permits. 1.6.4 Tests and analysis of aggregate material will be performed in accordance with ANSI/ASTM D1557, ASTM D2922, ASTM D3017,ASTM D4318, and ASTM C136, as applicable. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000-2 Ii MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION NO 1.6.5 If tests indicate materials do not meet specified requirements, change material and retest or obtain written approval of the Engineer. Costs associated with the retesting of materials will be the responsibility of the Contractor. 1.7 PROJECT CONDITIONS 1.7.1 Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site-clearing operations. arr 1.7.1.1 Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. 1.7.1.2 Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction. 411' 1.7.2 Salvable Improvements: Carefully remove items indicated to be salvaged and store on Owner's premises. to 1.7.3 Utility Locator Service: Contractor shall utilize a utility locate service and shall notify affected utility companies before starting work. Contractor shall comply with all of said utility companies' requirements. rr 1.7.4 The locations of existing underground utilities are approximate only, and have not been independently verified by the Owner or the Owner's Representative. The Contractor shall determine the exact locations of all existing utilities before commencing work. All damages that happen due to the Contractor's failure to locate exactly and preserve all underground utilities that are designated to remain shall be repaired at Contractor's own expense. 1.7.5 Onsite soils are susceptible to erosion and therefore cause colloidal suspension in stormwater. See Division 31 Section 312513 "Erosion Control" for additional information. 1.8 REGULATORY REQUIREMENTS 1.8.1 Conform to all requirements of NPDES under the DOE General Permit for Stormwater Discharges from Construction Activities. See Division 31 Section 312513 "Erosion Control" for additional information. r� 1.8.2 Conform to applicable agency code for dust control, runoff control, and disposal of the demolished material. ell 1.8.3 Obtain, post, and pay for required permits from authorities according to provisions of the Contract, including General and Supplemental Conditions and Division 01 Specification Sections. wr 1.8.4 Notify affected utility companies before starting work and comply with their requirements. 1.8.5 Do not close or obstruct roadways, sidewalks, or hydrants without appropriate permits or written authorization. Maintain emergency access as required by the local jurisdiction. irr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000-3 rw MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION en 1.8.6 Conform to applicable regulatory procedures when discovering hazardous or contaminated materials, or when uncovering buried tanks. 1.8.7 Pay all related disposal fees and charges and conform to all regulations for materials disposed U offsite, including asbestos-lined cement water main, asbestos-containing building materials, storage tanks, tires,appliances, and any environmentally hazardous substances. mu 1.9 COORDINATION 1.9.1 Coordinate work under provisions of Division 01 Section 013100 "Project Coordination." re 1.10 INTENT 1.10.1 It is the intent of this Specification that the Contractor provide the Work defined herein complete in every respect, and in accordance with good practices involved in the clearing and demolition of site improvements above and below surface grade, and the requirements of this Specification, regardless of whether or not full details of such completeness,workmanship, or practices are contained herein. mu 1.10.2 It is the intent of the Work under this contract to conduct all clearing and demolition necessary to complete all of the Work of this project. PART 2 - PRODUCTS (NOT USED) r PART 3 - EXECUTION U 3_1 PREPARATION 3.1.1 Protect and maintain benchmarks and survey control points from disturbance during construction. wok 3.1.2 Verify that clearing limits are identified and consistent with proposed improvements. 3.1.3 Locate and clearly identify trees, shrubs, and other vegetation to remain or to be relocated. 3.1.4 Protect existing site improvements to remain from damage during construction. U 3.1.4.1 Restore damaged improvements to their original condition, as acceptable to Owner. 3.1.5 Schedule and conduct pre-work conference with Owner, Engineer, Architect, City of Renton, and Utility Company representative. 3.1.6 Protect existing site improvements to remain from damage during construction. Mil 3.1.7 Restore damaged improvements to their original condition, as acceptable to Owner. U BLRB ARCHITECTS 04/02/13 U AHBL, INC. BID SET PAGE: 311000-4 U rill MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION .rY 3.1.8 Provide, erect, relocate, and maintain temporary barriers and security devices as required by Division 01 Section 015000 "Temporary Facilities and Controls." Facilities shall conform to Manual of Uniform Traffic Control Devices (MUTCD) and WSDOT. 3.1.9 Restrict site access to the designated construction entrance and as authorized by Owner. 3.1.10 Conform to construction sequence as indicated on the plans. 3.1.11 Provide neat sawcut at meet line with adjacent concrete or asphalt pavement to remain. 3.1.12 Pothole and locate utilities at all locations where a proposed utility will cross or connect to an existing utility. Verify clearances and tie-in elevations prior to commencing work. Notify Civil Engineer immediately where conflicts occur. Backfill potholes with aggregate for gravel base. 3.2 TEMPORARY EROSION AND SEDIMENTATION CONTROL 3.2.1 Provide temporary erosion and sedimentation control measures according to requirements in Division 31 Section 312513 "Erosion Control"to prevent soil erosion and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways, according to Drawings and requirements of authorities having jurisdiction. 10 3.2.2 Verify that flows of water redirected from construction areas or generated by construction activity do not enter or cross protection zones. 3.3 TREE AND PLANT PROTECTION 3.3.1.1 General: Protect trees and plants remaining onsite. 3.3.2 Repair or replace trees, shrubs, and other vegetation indicated to remain or be relocated that are damaged by construction operations,in a manner approved by Architect. 3.3.3 Provide tree protection where indicated and conform to detail. • 3.4 EXISTING UTILITIES 3.4.1 Contractor shall arrange for disconnecting and sealing indicated utilities that serve existing structures before site clearing. 3.4.1.1 Verify that utilities have been disconnected and capped before proceeding with site rr clearing. 3.4.1.2 Coordinate and pay for any utility provider fees associated with disconnecting services. 3.4.2 Locate, identify, disconnect, and seal or cap utilities indicated to be removed or abandoned in place. Demolished materials shall be removed and disposed of offsite by the Contractor at an approved disposal area. WIN BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000-5 rr MI MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION 3.4.3 The utility removal trenches and any depressions below planned final grades caused by demolition activities shall be backfilled with structural fill as required under Division 31 Section 312000 "Earth Moving." Obi 3.4.4 Locate,identify, and disconnect utilities indicated to be abandoned in place. 3.4.5 Interrupting Existing Utilities: Do not interrupt utilities serving facilities occupied by Owner or 11116 others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated: Mil 3.4.5.1 Notify Architect not less than 2 days in advance of proposed utility interruptions. 3.4.5.2 Do not proceed with utility interruptions without Architect's written permission. 3.4.6 Contractor shall provide coordination with all serving utility agencies. 3.4.7 Contractor shall not damage existing utilities to remain and shall include in the Base Bid all costs 1.11 to clean and repair any disturbed utility to remain. 3.4.8 If workers enter any trench or other excavation 4 feet or more in depth that does not meet the open pit requirements of WSDOT Section 2-09.3(3)b, it shall be shored and cribbed. All trench safety systems shall meet the requirements of the Washington Industrial Safety and Health Act, Chapter 49.17 RCW. 3.4.9 Excavate for and remove underground utilities indicated to be removed. 3.5 CLEARING AND GRUBBING 3.5.1 Remove obstructions, trees, shrubs, sod and grass, and other vegetation to permit installation of new construction. Removal includes digging out stumps and obstructions,and grubbing roots. 3.5.1.1 Do not remove trees, shrubs,and other vegetation indicated to remain or to be relocated. 3.5.1.2 Completely remove stumps, roots, obstructions, and debris to a depth of 18 inches below exposed subgrade. gas 3.5.1.3 Use only hand methods for grubbing within drip line of remaining trees. 3.5.2 Fill depressions caused by clearing and grubbing operations with appropriate fill material unless further excavation or earthwork is indicated. 3.5.3 Remove debris, rock, and extracted plant life from site and haul to an approved offsite disposal location. Do not burn or bury materials onsite. 3.6 TOPSOIL STRIPPING 3.6.1 Remove sod and grass before stripping topsoil, and dispose of sod, grass, and roots offsite at an approved location. BLRB ARCHITECTS 04/02/13 UI AHBL, INC. BID SET PAGE: 311000-6 MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION si 3.6.2 Strip topsoil to whatever depths are encountered in a manner to prevent intermingling with underlying non-organic subsoil. 3.6.2.1 Strip surface soil of unsuitable topsoil including trash, debris, weeds, roots, and other waste materials and remove from project site. 3.6.2.2 Consult Geotechnical Study regarding depths of topsoil likely to be encountered. 3.6.2.3 Dispose topsoil offsite at an approved location. rr 3.7 SITE IMPROVEMENTS 3.7.1 Remove existing above- and below-grade improvements as indicated and necessary to facilitate new construction. 3.7.2 Remove slabs,curbs, gutters, and aggregate base as indicated. 3.7.2.1 Unless existing full-depth joints coincide with line of demolition, neatly saw-cut along line of existing pavement to remain before removing adjacent existing pavement. Saw-cut faces vertically. 3.7.2.2 Concrete walks shall be removed to nearest construction joint as approved by engineer. 3.7.2.3 Replace materials designated to remain that are damaged due to Contractor's operations at no additional cost to owner. rr 3.7.3 Contractor shall review topographical survey construction documents, geotechnical reports, and environmental reports, and shall visit the site in order to make his own determination of the site improvements to be demolished and removed, and shall include all associated costs for removal of above- and below-grade improvements in his bid. 3_8 DEMOLITION REQUIREMENTS 3.8.1 Conduct demolition to minimize interference with adjacent improvements. 3.8.2 Conduct operations with minimum interference to public or private accesses. Maintain protected egress and access at all times. rr 3.8.3 Obtain written permission from adjacent property owners when demolition equipment will traverse, infringe upon, or limit access to their property. 3.8.4 Sprinkle work with water to minimize dust. Provide hoses, hydrant meters, backflow prevention, and water connections for this purpose per requirements of the jurisdiction. 3.8.5 Remove and dispose of existing asphalt pavement as indicated. Asphalt materials shall be removed from the site and shall be disposed of at an agency-approved location for acceptance of asphalt materials. rw BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000-7 ■r MEADOW CREST PLAYGROUND SECTION 311000 PROJECT NO. 11.12 SITE CLEARING AND SITE DEMOLITION Alit 3.8.6 Remove demolished plant materials and miscellaneous demolition debris from site and haul to an approved disposal location. 3.8.7 Burial or burning of material to be removed is not permitted onsite. Maintain site in clean condition. 3.8.8 Blasting is not allowed. 3.8.9 Pay all related disposal fees and charges for materials disposed of offsite, including asbestos- containing materials if applicable, appliances, and misc. debris. 3.9 DISPOSAL OF SURPLUS AND WASTE MATERIALS 3.9.1 Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials including trash and debris, and legally dispose of them off Owner's property. 3.9.2 Separate recyclable materials produced during site clearing from other nonrecyclable materials. Store or stockpile without intermixing with other materials and transport them to recycling facilities. Do not interfere with other Project work. Yr END OF SECTION 311000 rY nil BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 311000-8 ,.r MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING PART 1 - GENERAL L1 RELATED DOCUMENTS ;le 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1_2 SUMMARY 1.2.1 Section Includes: 1.2.1.1 Preparing subgrades for slabs-on-grade, foundations, walks, pavements, turf and grasses, and plants. 1.2.1.2 Excavating and backfilling for buildings and structures. it 1.2.1.3 Subbase course and base course for asphalt pavements and concrete walks. 1.2.1.4 Excavating and backfilling trenches for utilities and buried utility structures outside the "r' building and within the building. 1.2.1.5 Wet weather earthwork. rr 1.2.1.6 Rough and final grading the site. 1.2.1.7 Excavating and backfilling for stormwater facilities. 1.2.2 Related Sections: 1.2.2.1 Division 01 Section 015000 "Temporary Facilities and Controls" for temporary controls, utilities,and support facilities; also for temporary site fencing if not in another Section. ++� 1.2.2.2 Division 02 Section 023000"Subsurface Investigation"for project soil reports. 1.2.2.3 Division 31 Section 311000 "Site Clearing and Site Demolition" for site stripping, grubbing, stripping topsoil,and removal of above-and below-grade improvements and utilities. 1.2.2.4 Division 31 Section 312513 "Erosion Control"for temporary erosion control. rr 1_3 REFERENCE STANDARDS 1.3.1 WSDOT Specification: Standard Specifications for Road, Bridge and Municipal Construction, prepared jointly by the Washington State Department of Transportation, and the American Public Works Association, Washington State Chapter, 2012 edition. All references to measurement and payment shall be deleted from consideration; and the terms agreed to in the contract substituted therefore. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000— 1 err rrr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 1.3.2 WSDOT Standard Plan: Standard Plans for Road and Bridge Construction prepared by the Washington State Department of Transportation,current issue in effect at the bid date. ry 1.4 DEFINITIONS 1.4.1 Backfill: Soil material or controlled low-strength material used to fill an excavation. eii 1.4.1.1 Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to support sides of pipe. rrc 1.4.1.2 Final Backfill: Backfill placed over initial backfill to fill a trench. 1.4.2 Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying pipe. 1.4.3 Borrow Soil: Satisfactory soil imported from offsite for use as fill or backfill. 1.4.4 Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated. rei 1.4.4.1 Authorized Additional Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions as directed by Architect. Authorized additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work. 1.4.4.2 Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions without direction by Architect. Unauthorized excavation, as well as remedial work Orr directed by Architect, shall be without additional compensation. 1.4.5 Existing Fill: Very loose to medium dense, moist, fine to coarse sand with trace to little silt and , gravel. 1.4.6 Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface. 1.4.7 Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below subbase, drainage fill, drainage course, or topsoil materials. 1.4.8 Utilities: Onsite underground pipes, vaults, storm chambers, conduits, ducts, and cables, as well ri as underground services within buildings. 1.4.9 Wet Weather Earthwork: Earthwork performed between October 1 and April 30, or during wet weather, regardless of the time of year. 1.5 SUBMITTALS 1.5.1 Submit under provisions of Division 01, Section 013400, "Shop Drawings, Product Data & Samples,"and as further provided. Oil BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-2 rr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING go 1.5.2 Samples for the following: 1.5.2.1 30-lb. samples sealed in airtight containers, of each proposed soil material from onsite or borrow sources. Submit samples to Geotechnical Engineer at least 72 hours in advance of intended use. 1.5.3 Material Test Reports: From a qualified testing agency indicating and interpreting test results for compliance of the following with requirements indicated: 1.5.3.1 Classification according to ASTM D 2487 of each onsite or borrow soil material proposed for fill and backfill. 1.5.3.2 Laboratory compaction curve according to ASTM D1557 for each onsite or borrow soil .r material proposed for fill and backfill. 1.5.4 Certification: 1.5.4.1 Provide a letter, signed by the supplier and reviewed and also signed by an officer of the general contractor's company, certifying that the following products to be incorporated into the work to meet the requirements specified. 1.5.4.2 Products: 1.5.4.2.1 Imported Structural Fill 1.5.4.2.2 General Site Fill rr1 1.5.4.2.3 Gravel for Pipe Bedding m„ 1.5.4.2.4 Gravel Backfill for Trench Backfill 1.5.4.2.5 Quarry Spalls 1.5.4.2.6 Rip-Rap 1.5.4.2.7 Bioretention Soil Mix(BSM) rr 1.5.5 Preexcavation Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including finish surfaces, which might be misconstrued as damage caused by earth moving operations. Submit before earth moving begins. r 1.6 QUALITY ASSURANCE 1.6.1 Field inspection and testing will be performed under Division 01 Section 014600 "Testing Laboratory Services." die 1.6.2 Geotechnical Testing Agency Qualifications: Qualified according to ASTM E 329 and ASTM D 3740 for testing indicated. 1.6.3 Preexcavation Conference: Conduct conference at Project site. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-3 err MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 1 1.12 EARTH MOVING Ns 1.7 PROJECT CONDITIONS 1.7.1 Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during earth moving operations. 1.7.1.1 Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. 1.7.1.2 Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction. Nn 1.7.2 Utility Locator Service: Notify utility locator service for area where Project is located before beginning earth moving operations. 1.7.3 Do not commence earth moving operations until temporary erosion- and sedimentation-control measures, specified in Division 31 Section 312513 "Erosion Control,"are in place. 1.7.4 Prohibit heat sources,flames, ignition sources, and smoking within or near protection zones. rrr 1.8 REGULATORY REQUIREMENTS 1.8.1 Secure site development and right-of-way use permits and conform to permit requirements. 1.8.2 Conform to agency codes for dust control, runoff control, and disposal of demolished and cleared materials. 11110 1.8.3 Notify affected utility companies before starting work and comply with their requirements. 1.8.4 If any materials that appear to be hazardous are encountered during excavation, discontinue work and immediately notify both Owner and Architect. 1.8.5 Contractor shall pay all applicable fees for permits not already acquired by owner. lei 1_9 INTENT 1.9.1 It is the intent of this Specification that the Contractor provide the Work defined herein, complete in every respect, and in accordance with the good practices of the trades involved in the excavation, transport, placement, grading, backfilling and compaction of earthen materials and the requirements of , this Specification, regardless of whether or not full details of such completeness, workmanship, or practices are contained herein. 1.9.2 It is the intent of this Specification that all Work comply with all applicable federal, state, and local codes, ordinances, and regulations. Nothing in the Specifications or Drawings is to be construed to allow Work not conforming to such codes. Contractor shall be responsible for complying with the regulations and code requirements. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-4 MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING ar PART 2 - PRODUCTS 2.1 SOIL MATERIALS 2.1.1 General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations. 2.1.2 Satisfactory Soils: Soil Classification Groups GW, GP, SW, and SP according to ASTM D 2487 or a combination of these groups; free of rock or gravel larger than 3 inches in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter. 2.1.3 Unsatisfactory Soils: Soil Classification Groups GC, GP, SC, SP, CL, ML, OL, CH, MH, OH, and PT according to ASTM D 2487, or a combination of these groups. 2.1.3.1 Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction. 2.1.3.2 Existing fill should be removed from below planned structures. 2.1.4 General Site Fill: WSDOT Specification 9-03.14(3), Common Borrow or Onsite Materials free of sod, organic, vegetative and other deleterious materials containing less than 15 percent passing a US No. 200 Sieve based on the fraction passing the US No. 4 sieve. 2.1.5 Gravel Backfill: WSDOT 9.03.19, Bank Run Gravel for Trench Backfill. 2.1.6 Pipe Bedding: Conform to WSDOT Specification 9-03.12(3), Gravel Backfill for pipe zone bedding. 2.1.7 Quarry Spalls: WSDOT Specification 9-13.6. 2.1.8 Structural Fill: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch sieve and not more than 12 percent passing a No. 200 sieve. 2.1.8.1 Onsite soils may be reused as structural fill during dry weather, when approved by the rr geotechnical engineer and when moisture conditioned and each lift may be compacted to 95 percent of ASTM D-1557. 2.1.8.2 Onsite fill, in its existing condition, shall not be reused as structural fill. 2.1.9 Imported Structural Fill: 2.1.9.1 Clean, well-graded mixture of sand and crushed gravel, containing less than 5 percent fines by dry weight passing the No. 200 sieve, based on wet sieving the fraction passing the 3/4-inch mesh sieve. The gravel content shall range between 20 to 60 percent retained on a No. 4 sieve. dim 2.1.10 Crushed Surfacing Base Course: Conform to WSDOT Specification 9-03.9(3). 2.1.11 Crushed Surfacing Top Course: Conform to WSDOT Specification 9-03.9(3). BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-5 wr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 2.1.12 Capillary Break Under Building Slab: Clean, washed, crushed rock or pea gravel. 2.1.13 Bioretention Soil Mix: 2.1.13.1 Bioretention Soil Mix shall be a well blended mixture of mineral aggregate and compost. 2.1.13.2 Compost shall have organic content meeting WAC 173-350-230 and meet Type 1 or 3. Available online at http://www.ecy.wa.gov/programs/swfa/compost.. The compost quality shall meet the following: rlr 2.1.13.2.1 Compost material shall be tested in accordance with Testing Methods for the Examination of Compost and Composting (TMECC) Test Method 02.02-B, "Sample Sieving for Aggregate Size Classification." Compost shall meet the following: Min. Max. Percent passing 1" 99% 100% Percent passing 5/8" 90% 100% Percent passing 1/4" 40% 90% 2.1.13.2.2 The pH shall be between 5.5 and 8.0 when tested in accordance with TMECC 04.11-A, "1:5 Slurry pH." 2.1.13.2.3 Manufactured inert material (plastic, concrete, ceramics, metal, etc.) shall be less than 1.0 percent by weight as determined by TMECC 03.08-A "percent dry weight basis." 2.1.13.2.4 Organic matter content should be between 45 and 65 percent dry weight basis as 'o determined by TMECC 05.07-A, "Loss-On-Ignition Organic Matter Method." 2.1.13.2.5 Soluble salt contents shall be less than 6.0 mmhos/cm tested in accordance with ow TMECC 04.10-A, "1:5 Slurry Method, Mass Basis." 2.1.13.2.6 Maturity shall be greater than 80% in accordance with TMECC 05.05-A, "Germination Atli and Vigor." 2.1.13.2.7 Stability shall be 7 or below in accordance with TMECC 05.08-B, "Carbon Dioxide Evolution Rate." 2.1.13.2.8 The compost product must originate a minimum of 65 percent by volume from recycled plant waste as defined in WAC 173-350-100 as "Type 1 Feedstocks." A maximum of 35 oft percent by volume of other approved organic waste as defined in WAC 173-350-100 as "Type III," including post-consumer food waste, but not including biosolids, may be substituted for recycled plant waste. The supplier shall provide written verification of feedstock sources. ea 2.1.13.2.9 Carbon to nitrogen ratio shall be less than 25:1 as determined using TMECC 04.01 "Total Carbon" and TMECC 04.02-D "Total Kjeldhal Nitrogen." The engineer may specify a C:N ratio up to 35:1 for projects where the plants selected are entirely Puget Sound native species. 2.1.13.3 Soil mix shall consist of two parts compost by volume and three parts mineral aggregate. BLRB ARCHITECTS 04/02/13 lir AHBL, INC. BID SET PAGE: 312000-6 �r. MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING a+r 2.1.13.4 Mineral aggregate shall be free of wood, waste, coating, or other deleterious material, and meet the following gradation: Sieve Size Percent Passing 3/8" 100 No. 4 95— 100 No. 10 75-90 No. 40 25—40 No. 100 4— 10 air No. 200 2 -5 2.1.14 Infiltration Chambers Bedding and Backfill: Clean, free-draining, granular material, such as washed pea gravel. 2.1.15 Subsurface Drainage Geotextile: Nonwoven needle-punched geotextile, manufactured for subsurface drainage applications, made from polyolefins or polyesters; with elongation greater than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced. Conform to WSDOT Specification 9-33. r 2.1.15.1 Survivability: Class 2; AASHTO M 288. 2.1.15.2 Grab Tensile Strength: 157 lbf; ASTM D 4632. Mil 2.1.15.3 Sewn Seam Strength: 1421bf; ASTM D 4632. 2.1.15.4 Tear Strength: 56 lbf; ASTM D 4533. imp 2.1.15.5 Puncture Strength: 56 lbf; ASTM D 4833. ail 2.1.15.6 Apparent Opening Size: No. 60 sieve,maximum; ASTM D 4751. 2.1.15.7 Permittivity: 0.1 per second,minimum; ASTM D 4491. 2.1.15.8 UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355. 2.1.16 Separation Geotextile: Woven geotextile fabric, manufactured for separation applications, made from polyolefins or polyesters; with elongation less than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced. Conform to WSDOT Specification 9-33. 2.1.16.1 Survivability: Class 2; AASHTO M 288. 2.1.16.2 Grab Tensile Strength: 247 lbf; ASTM D 4632. sae 2.1.16.3 Sewn Seam Strength: 222 lbf; ASTM D 4632. 2.1.16.4 Tear Strength: 90 lbf; ASTM D 4533. Sill 2.1.16.5 Puncture Strength: 90 lbf;ASTM D 4833. rrw 2.1.16.6 Apparent Opening Size: No. 60 sieve,maximum; ASTM D 4751. ME BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-7 MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 2.1.16.7 Permittivity: 0.02 per second,minimum; ASTM D 4491. 2.1.16.8 UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355. err 2.2 ACCESSORIES 2.2.1 Detectable Warning Tape: Acid- and alkali-resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, a minimum of 6 inches wide and 4 mils thick, continuously inscribed with a description of the utility, with metallic core encased in a protective r„ jacket for corrosion protection, detectable by metal detector when tape is buried up to 30 inches deep; colored as follows: 2.2.1.1 Red: Electric. 2.2.1.2 Yellow: Gas, oil, steam, and dangerous materials. 2.2.1.3 Orange: Telephone and other communications. 2.2.1.4 Blue: Water systems. 2.2.1.5 Green: Storm and Sanitary Sewer systems. PART 3 - EXECUTION NO 3_1 PREPARATION 3.1.1 Protect utilities and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth moving operations. 3.1.2 Protect and maintain erosion and sedimentation controls during earth moving operations. 3.1.3 Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials. so 3.1.4 Verify survey control elevations and protect survey controls and benchmarks. rrr 3.2 DEWATERING 3.2.1 Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades,and from flooding Project site and surrounding area. 3.2.2 Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation. um 3.2.3 Reroute surface water runoff away from excavated areas. Do not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches. „r BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-8 MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING �tr 3.2.4 Install a dewatering system to keep subgrades dry and convey ground water away from excavations. Maintain until dewatering is no longer required. 3.2.5 Zones of seepage will be encountered. Contractor shall construct a dewatering system to drain perched groundwater. 3.2.6 Include dewatering systems in the Base Bid. 3.2.7 There are existing underdrains within the project limits. These underdrains may direct runoff into excavations. Contractor shall manage water and is responsible for protecting the excavations. Removal and replacement of unsuitable soils due to this condition is the responsibility of the Contractor at no cost to the Owner. 3.3 EXPLOSIVES 3.3.1 Explosives: Do not use explosives. 3_4 EXCAVATION,GENERAL 3.4.1 Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Excavated materials may include rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions. 3.4.1.1 If excavated materials intended for fill and backfill include unsatisfactory soil materials and low rock, replace with satisfactory soil materials. 3.4.2 At foundations, Contractor shall excavate existing fill up to 8 feet over portions of the site. Existing fill is not suitable for support of new foundations. 3.4.3 Contractor shall make their own determination regarding the import of fill materials or the hauling offsite of excess materials as necessary to attain the indicated elevations. Import of fill material and the hauling offsite of excess material shall be included in the Base Bid. Removal of all displaced soil from utility trench shall be included in the base bid. am 3.4.4 Fill and backfill materials may be stockpiled in areas onsite that do not interfere with other portions of the work. Contractor shall protect stockpiled soils from wind or erosion by covering with plastic sheeting and securing, or other effective methods. Remove subsoil not being reused from site. rr Shortage of material caused by premature disposal of any material by the Contractor shall be replaced by the Contractor at Contractor expense. 3.4.5 Direct surface water away from excavation and stockpile site to prevent erosion or deterioration of materials. 3.4.6 Remove soil stockpiles; leave area in a clean and neat condition. Grade site surface to prevent standing surface water. din r�r BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000-9 rw MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.5 EXCAVATION FOR STRUCTURES 3.5.1 Excavate to indicated elevations and dimensions within a tolerance of plus or minus 1 inch. rei 3.5.2 Excavate and remove entirely existing fill from within the zone of influence of the proposed structure and replace with structural fill. 116 3.6 EXCAVATION FOR UTILITY TRENCHES w 3.6.1 Excavate trenches to indicated gradients, lines, depths,and elevations. 3.6.1.1 Beyond building perimeter, excavate trenches to allow installation of top of pipe below frost line. 3.6.2 Excavate trenches to uniform widths to provide the following clearance on each side of pipe or conduit. Excavate trench walls vertically from trench bottom to 12 inches higher than top of pipe or conduit unless otherwise indicated. 3.6.2.1 Clearance: 12 inches unless otherwise indicated. 3.6.3 Trench Bottoms: Excavate and shape trench bottoms to provide uniform bearing and support of pipes and conduit. Shape subgrade to provide continuous support for bells,joints, and barrels of pipes and for joints, fittings, and bodies of conduits. Remove projecting stones and sharp objects along trench subgrade. 3.6.3.1 For pipes and conduit less than 6 inches in nominal diameter,hand-excavate trench bottoms ' and support pipe and conduit on an undisturbed subgrade. 3.6.3.2 For pipes and conduit 6 inches or larger in nominal diameter, shape bottom of trench to support bottom 90 degrees of pipe or conduit circumference. Fill depressions with tamped sand backfill. 3.6.3.3 Excavate trenches 6 inches deeper than elevation required to allow for bedding course. 3.7 EXCAVATION FOR WALKS AND PAVEMENTS 3.7.1 Excavate surfaces under walks and pavements to indicated lines, cross-sections, elevations, and subgrades. 3.7.2 Excavate existing fill beneath walks and pavements and provide a 2-foot minimum depth of structural fill. +rr 3.8 EXCAVATION FOR RAIN GARDENS 3.8.1 Excavate surfaces of rain gardens to 18 inches below finished grade. Scarify subgrade in two directions to a depth of 6 inches. Place Bioretention Soil Mix(BSM) over scarified surface. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 10 rir rr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING rr 3.8.2 Notify Engineer 48 hours prior to placing BSM. Failure to notify may result in all BSM being rejected. 3.8.3 Final excavation and installation of rain gardens shall be completed in good weather and is not permitted between October 31 and May 1. rr 3.9 EXCAVATION FOR INFILTRATION FACILITIES 3.9.1 Excavate and/or backfill to indicated cross-sections and elevations within a tolerance of ±0.10 foot. 3.9.2 Within infiltration areas,excavation shall extend to depth shown on plans. rr 3.9.2.1 Special care shall be taken not to compact infiltration surface. 3.9.2.2 Excavation equipment shall be limited to tracked excavator working at arm's length to minimize disturbance and compaction of infiltration surface(trench bottom). 3.9.2.3 Rubber-tired equipment shall not be allowed in bottom of trenches. 3.9.2.4 Exposed soil at bottom of excavation shall be inspected by Owner's Geotechnical Engineer Wr to confirm that soil conditions are consistent with soils encountered during geotechnical investigation. 3.10 SHORING rr 3.10.1 Where sheet piling, shoring, sheeting, bracing, moveable trench boxes, or other supports are necessary,they shall be designed, furnished,placed, maintained, and removed by the Contractor. rr 3.10.2 All sheeting, shoring, and bracing shall be accomplished in accordance with all local and State regulatory requirements. rir 3.11 SUBGRADE INSPECTION ■r 3.11.1 Notify Architect when excavations have reached required subgrade. 3.11.2 If Owner's Geotechnical Engineer determines that unsatisfactory soil is present, continue ,,,,,, excavation and replace with imported structural fill material as directed. 3.11.3 Proof-roll subgrade below the building slabs and pavements with heavy, pneumatic-tired equipment, such as a fully loaded dump truck weighing not less than 15 tons, to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades. 3.11.3.1 Proof-roll shall be observed by Owner's Geotechnical Engineer. rr 3.11.3.2 Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Geotechnical Engineer,and replace with imported structural fill as directed. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 11 rr grrrrr igirr 11111 MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING rW 3.11.4 Authorized additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work. 3.11.5 Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities,as directed by Architect,without additional compensation. 3.12 OVER-EXCAVATION 3.12.1 Subgrade areas shall be examined and approved by the Owner's Geotechnical Engineer. 3.12.2 Where the undisturbed condition of native soils or where the excavated subgrade is inadequate for support of the planned construction, the Contractor will be directed in writing by the Owner's Geotechnical Engineer to perform over-excavation to adequate supporting soils. The in place volume to be excavated shall be determined and agreed upon by the Owner and Contractor prior to commencement of work. The excavated space shall be filled and compacted to the adjacent grade elevation with Structural Fill material. The excavated material shall be disposed of offsite at a permitted location. 3.12.3 Authorized over excavation and associated backfill shall be quantified at the time of work by the Owner and agreed upon by the Contractor. Payment shall be based on the agreed quantity as measured in place and determined by the Geotechnical Engineer, and according to contract provisions for changes in the work. 3.12.4 An adjustment of the Contract Sum and Contract Time shall not be considered or provided for over-excavation work at or below subgrades that become unsuitable because they are left exposed, saturated, damaged, or adversely affected by the Contractor's work. 3.13 UNAUTHORIZED EXCAVATION `r 3.13.1 Fill unauthorized excavation under foundations or wall footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Lean concrete fill may be used when approved by Geotechnical Engineer. roc 3.13.1.1 Fill unauthorized excavations under other construction or utility pipes identified by the Geotechnical Engineer. 3.14 STORAGE OF SOIL MATERIALS at 3.14.1 Stockpile borrow soil materials and excavated satisfactory soil materials without intermixing. Place, grade,and shape stockpiles to drain surface water. Cover to prevent windblown dust. 3.14.1.1 Stockpile soil materials away from edge of excavations. Do not store within drip line of remaining trees. 3.14.1.2 Stockpiled soil materials shall be protected from rain by covering with plastic sheeting in ' accordance with WSDOT 8.01.3(4). as BLRB ARCHITECTS 04/02/13 AHBL,INC. BID SET PAGE: 312000- 12 rur 4.1 MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.15 BACKFILL 3.15.1 Place and compact backfill in excavations promptly,but not before completing the following: 3.15.1.1 Construction below finish grade including, where applicable, subdrainage, dampproofing, waterproofing, and perimeter insulation. 3.15.1.2 Surveying locations of underground utilities for Record Documents. ors 3.15.1.3 Testing and inspecting underground utilities. 3.15.1.4 Removing trash and debris. 3.15.1.5 Subgrade shall be inspected and approved by Owner's Geotechnical Engineer. 3.15.2 Place backfill on subgrades free of mud, frost, snow, or ice. 3.16 UTILITY TRENCH BACKFILL 3.16.1 Place gravel backfill for trench backfill on subgrades free of mud, frost, snow, or ice. 3.16.2 Place and compact bedding course on trench bottoms and where indicated. Shape bedding course toprovide continuous support for bells,joints, and barrels of pipes and for joints, fittings, and bodies of PP PP g , conduits. MN 3.16.3 Backfill voids with gravel backfill soil while removing shoring and bracing. 3.16.4 Place and compact initial backfill of specified material (gravel backfill), free of particles larger than 1 inch in any dimension,to a height of 12 inches over the pipe or conduit. 3.16.4.1 Carefully compact initial backfill under pipe haunches and compact evenly up on both sides and along the full length of piping or conduit to avoid damage or displacement of piping or "N conduit. Coordinate backfilling with utilities testing. 3.16.4.2 Trench backfill greater than 2 feet below finish grade shall be compacted to at least +■ 90 percent of maximum dry density based on ASTM D1557. 3.16.4.3 Trench backfill less than 2 feet below finish grade shall be compacted to at least 95 percent of maximum dry density based on ASTM D1557. 3.16.5 Cobbles and boulders shall not be used for trench backfill. 3.16.6 Trenches under Footings: Backfill trenches excavated under footings and within 18 inches of bottom of footings with satisfactory soil; fill with concrete to elevation of bottom of footings. Concrete is specified in Division 03 Section 033000"Cast-in-Place Concrete." 3.16.7 Place and compact final backfill of specified material (gravel backfill) soil to final subgrade elevation. 3.16.8 Coordinate backfilling with utilities testing. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 13 r. MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.16.9 Install warning tape directly above utilities, 12 inches below finished grade. Utilities requiring warning tape shall include electrical, gas, side sewer, under drains, roof drains, water service, water main and fire main,telephone,and communications. 3.17 SOIL FILL 3.17.1 Fill areas to contours and elevations indicated with unfrozen materials conforming to the requirement for type of fill material specified. 3.17.2 Plow, scarify, bench, or break up sloped surfaces steeper than 1 vertical to 4 horizontal so fill material will bond with existing material. 3.17.3 Contractor shall make their own determination regarding the import of fill materials or the hauling offsite of excess materials as necessary to attain the indicated elevations. Import of fill material and the hauling offsite of excess material shall be included in the Base Bid. Removal of all displaced soil from utility trench and footing excavations shall be included in the base bid. 3.17.4 General Site Fill: 3.17.4.1 For general site grading outside of building, pavement, and fill slopes, provide moisture- controlled General Site Fill material which is approved for re-use as determined by the Geotechnical Engineer. Contractor shall moisture-condition soils as necessary to meet compaction requirements. 3.17.4.2 When directed by the Geotechnical Engineer, soils contaminated with deleterious material or which are soft and yielding shall be over-excavated and replaced with Imported Structural Fill. 3.17.5 Pavement and Surfacing Fill: 3.17.5.1 Provide moisture-controlled Structural Fill at all future paved and surfaced embankment areas. Extend the embankment at least 5 feet beyond asphalt paved areas. 3.17.5.2 Onsite soils with fine-grained material (smaller than No. 200 sieve) greater than 5 percent are moisture sensitive and shall only be used as structural fill during dry weather and dry subgrade conditions. 3.17.6 Building Fills: 3.17.6.1 All fill within future building envelope shall be moisture-controlled Structural Fill as approved by Geotechnical Engineer. 3.17.6.2 Onsite soils with fine-grained material (smaller than No. 200 sieve) greater than 5 percent are moisture sensitive and shall only be used as structural fill during dry weather and dry subgrade 161 conditions. 3.17.7 Place fill material in continuous layers and compact to a firm and unyielding condition. Unless directed otherwise by the Geotechnical Engineer, compact all fills, in loose layers not exceeding eight(8) inches, with approved mechanical compacting devices and material to attain the following minimum compaction; 3.17.8 Make grade changes gradual. Blend slopes into level areas. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 14 ire - i MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING +w 3.17.9 Fill Slopes: 3.17.9.1 Provide moisture-controlled structural fill. 3.17.9.2 Onsite soils with fine-grained material (smaller than No. 200 sieve) greater than 5 percent are moisture sensitive and shall only be used as structural fill during dry weather and dry subgrade conditions. 3.18 SOIL MOISTURE CONTROL 3.18.1 Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content. 3.18.1.1 Do not place backfill or fill soil material on surfaces that are muddy, frozen, or contain frost or ice. err 3.18.1.2 Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight. 3.18.1.3 Limit the areas that are stripped of topsoil and exposed during wet weather. The Contractor is responsible for over-excavating of material beneath subgrade that becomes unsuitable because it is left exposed, saturated,damaged, or adversely affected by the Contractor's work. 3.19 COMPACTION OF SOIL BACKFILLS AND FILLS 3.19.1 Place backfill and fill soil materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches in loose depth for material .rr compacted by hand-operated tampers. 3.19.2 Place backfill and fill soil materials evenly on all sides of structures to required elevations, and uniformly along the full length of each structure. 3.19.3 Compact soil materials to not less than the following percentages of maximum dry unit weight according to ASTM D 1557: tam 3.19.3.1 Under structures,building slabs, steps, and pavements, scarify and recompact top 12 inches of existing subgrade and each layer of backfill or fill soil material at 95 percent. rr� 3.19.3.2 Under walkways, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill soil material at 95 percent. mo 3.19.3.3 Under turf or unpaved areas, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill soil material at 90 percent. 3.19.3.4 For utility trenches, compact each layer of initial and backfill soil material greater than 2 feet below finish grade to 90 percent, and less than 2 feet below finish grade to 95 percent. rr 3.19.3.5 For fill slopes, scarify and recompact top 12 inches of existing subgrade and each layer of backfill or fill soil material at 95 percent. ill` BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 15 Airrommirommir Ilrr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.20 GRADING 3.20.1 General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections,lines,and elevations indicated. 3.20.1.1 Provide a smooth transition between adjacent existing grades and new grades. Nil 3.20.1.2 Cut out soft spots, fill low spots, and trim high spots to comply with required surface tolerances. as 3.20.2 Site Rough Grading: Slope grades to direct water away from future buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerance: 3.20.2.1 Plus or minus 1/10 foot. 3.20.3 Grading Inside Building Lines: Finish subgrade to a tolerance of 1/2 inch when tested with a 10-foot straight edge. oft 3.20.4 Any work that is determined not to conform shall be reworked by the Contractor to bring into conformance at the Contractor's expense. 3.21 SUBSURFACE DRAINAGE rw 3.21.1 Refer to Division 33 Section 334600"Subdrainage." 3.22 BASE COURSES UNDER PAVEMENTS AND WALKS 3.22.1 Place base course on subgrades free of mud,frost, snow, or ice. 3.22.2 On prepared subgrade, place base course under pavements and walks as follows: 3.22.2.1 Where indicated, install separation geotextile on prepared subgrade according to EN manufacturer's written instructions,overlapping sides and ends. 3.22.2.2 Shape base course to required crown elevations and cross-slope grades. mei 3.22.2.3 Place base course 6 inches or less in compacted thickness in a single layer. 3.22.2.4 Place base course that exceeds 6 inches in compacted thickness in layers of equal thickness, with no compacted layer more than 6 inches thick or less than 3 inches thick. 3.22.2.5 Compact base course at optimum moisture content to required grades, lines, cross sections, and thickness to not less than 95 percent of maximum dry unit weight according to ASTM D 1557. 3.22.3 Pavement Shoulders: Place shoulders along edges of base course to prevent lateral movement. sir Construct shoulders, at least 12 inches wide, of Structural Fill and compact simultaneously with each base layer to not less than 95 percent of maximum dry unit weight according to ASTM D 1557. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 16 r�r WWI MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.23 CAPILLARY BREAK DRAINAGE COURSE UNDER CONCRETE SLABS-ON-GRADE 3.23.1 Place drainage course on subgrades free of mud, frost, snow, or ice. 3.23.2 On prepared subgrade, place and compact drainage course under cast-in-place concrete slabs-on- grade as follows: 3.23.2.1 Install subdrainage geotextile on prepared subgrade according to manufacturer's written instructions,overlapping sides and ends. err 3.23.2.2 Place drainage course 6 inches or less in compacted thickness in a single layer. 3.23.2.3 Compact each layer of drainage course to required cross sections and thicknesses to not less than 95 percent of maximum dry unit weight according to ASTM D 698. 3.24 WET WEATHER EARTHWORK 3.24.1 Onsite soils are moisture sensitive. These soils will become unstable and unsuitable when wet. 3.24.2 Slope the ground surface within and surrounding the construction area to promote runoff away from work areas and to prevent ponding of water. di" 3.24.3 Work areas should be covered with plastic to protect from rainfall. Measures such as sloping, ditching, dewatering,and installation sumps shall be employed. 3.24.4 Earthwork should be accomplished in small sections to minimize exposure to wet conditions. Each section should be small enough so that the removal of unsuitable soil and placement and compaction of clean structural fill can be accomplished on the same day. 3.24.5 Fill material used between October 1 and April 30 and during wet weather shall be Imported Structural Fill. 3.24.6 Do not leave soil uncompacted and exposed to moisture. A smooth-drum vibratory roller, or equivalent, should roll the surface to seal out as much water as possible. 3.24.7 In-place soil or fill soil that becomes unsuitable for compaction shall be removed and replaced with Imported Structural Fill at no additional cost to the Owner. rr 3.24.8 Grading and earthwork shall not be performed during periods of heavy, continuous rainfall. 3.25 FIELD QUALITY CONTROL 3.25.1 Testing Agency: Owner will engage a qualified geotechnical engineering testing agency to perform tests and inspections as follows: ..r 3.25.1.1 Determine prior to placement of fill that site has been prepared in compliance with requirements. IMO 3.25.1.2 Determine that fill material and maximum lift thickness comply with requirements. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 17 �rrr�r' rrr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.25.1.3 Determine, at the required frequency, that in-place density of compacted fill complies with requirements. Ifik 3.25.2 Allow testing agency to inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements. 3.25.3 Testing agency will test compaction of soils in place according to ASTM D 1556, ASTM D 2167, ASTM D 2922, and ASTM D 2937, as applicable. Tests will be performed at the following locations and frequencies: 3.25.3.1 Future Paved and Building Slab Areas: At subgrade and at each compacted fill and backfill layer, at least one test for every 2,000 sq. ft. or less of paved area or building slab, but in no case fewer than three tests. ■r 3.25.3.2 Trench Backfill: At each compacted initial and final backfill layer, at least one test for every 150 feet or less of trench length, but no fewer than two tests. irr 3.25.4 When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; recompact and retest until specified compaction is obtained. 3.25.5 Contractor shall provide as-built drawings of the completed work. See Division 01 Section 017700"Closeout Procedures"for requirements. 3.25.5.1 If grades do not conform to the plan, it is the Contractor's responsibility to bring site into conformance. to 3.26 PROTECTION 3.26.1 Protecting Graded Areas: Protect newly graded areas from traffic, freezing, and erosion. Keep free of trash and debris. rn 3.26.2 Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions. MI 3.26.2.1 Scarify or remove and replace soil material to depth as directed by Architect; reshape and recompact. ■r 3.26.3 Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing. 3.26.3.1 Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to greatest extent possible. me BLRB ARCHITECTS 04/02/13 - AHBL, INC. BID SET PAGE: 312000- 18 rr MEADOW CREST PLAYGROUND SECTION 312000 PROJECT NO. 11.12 EARTH MOVING 3.27 DISPOSAL OF SURPLUS AND WASTE MATERIALS 3.27.1 Remove surplus satisfactory soil and waste materials, including unsatisfactory soil, trash, and debris, and legally dispose of them off Owner's property. END OF SECTION 312000 all aiw 111111 ®rr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312000- 19 a MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL err r PART 1 - GENERAL 11 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. a 1_2 SUMMARY 1.2.1 In general, work of this Section includes,but is not limited to,the following: 1.2.1.1 Conform to all requirements of National Pollutant Discharge Elimination System (NPDES) Permit and Construction Stormwater Pollution Prevention Plan (CSWPPP), and the Construction Stormwater General Permit. 1.2.1.2 Provide Certified Erosion and Sediment Control Lead(CESCL). 1.2.1.3 Provide and maintain temporary erosion control measures as indicated on the drawings and rr as required by Washington State Department of Ecology. 1.2.1.4 Provide and maintain additional temporary erosion control measures, at no additional cost to the Owner,as may become necessary due to weather or environmental conditions. a 1.2.1.5 Prevent pollution or excess turbidity in State waters. mir 1.2.1.6 Removal of temporary erosion control measures after completion of project. 1.2.2 Related Sections 1.2.2.1 Division 01 Section 015000 "Temporary Facilities and Controls" for temporary utilities, temporary construction and support facilities, temporary security and protection facilities, and environmental protection measures during site operations. a 1.2.2.2 Division 31 Section 311000"Site Clearing and Site Demolition." a 1.2.2.3 Division 31 Section 312000 "Earth Moving"for soil materials, excavating, backfilling, and site grading. 1.3 REFERENCE STANDARDS 1.3.1 WSDOT Specification: Standard Specifications for Road, Bridge and Municipal Construction, as prepared jointly by the Washington State Department of Transportation, and the American Public Works Association, Washington State Chapter, 2012 edition. All references to measurement and payment shall be deleted from consideration,and terms agreed to in the contract substituted therefore. a 1.3.2 Conform to OSHA (Occupational Safety and Health Act)requirements. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 - 1 a MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 1.3.3 Conform to WISHA(Washington State Industrial Safety and Health Act)for trench safety. 1.3.4 Example Construction Stormwater Pollution Prevention Plan(CSWPPP) is included at end of this Section. 1.3.5 National Pollution Discharge Elimination System (NPDES) General Permit for Stormwater Discharges from Construction Activities by Washington State Department of Ecology: The Owner has applied for this permit as the permit holder. Contractor shall sign form as required to transfer the permit holder to the Contractor. rr� 1.4 DEFINITIONS 1.4.1 NPDES: National Pollution Discharge Elimination System general permit for stormwater discharges from construction activities. 1.4.2 CSWPPP: Construction Stormwater Pollution Prevention Plan. 1.4.2.1 CESCL: Certified Erosion and Sediment Control Lead. 1.4.3 Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface. 1.4.4 Utilities: On-site and off-site underground pipes, conduits, ducts, and cables, as well as underground services within buildings. ot 1.4.5 Wet Weather: Between dates of October 1 and April 30. 1.4.6 ESC: Erosion and Sediment Control. r 1.5 MATERIALS OWNERSHIP .ir 1.5.1 Except for materials indicated to be stockpiled or to remain Owner's property, cleared materials shall become Contractor's property and shall be removed from the site. .r 1.6 SUBMITTALS 1.6.1 Submit under provisions of Division 01 Section 013400, "Shop Drawings, Product Data & Samples"and as further provided. 1.6.1.1 Submit proof of certification for the CESCL. 1.6.1.2 Submit copies of CESCL field reports, ESC Maintenance Reports and stormwater sampling reports to Owner and Architect within 24 hours of each inspection. 1.6.2 Certification: Provide a letter, signed by the supplier and reviewed and also signed by an officer of the General Contractor's company, certifying that the following products to be incorporated into the work meet the requirements specified. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -2 MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 1.6.2.1 Silt Fence 1.6.2.2 Plastic Sheeting 1.6.2.3 Mulch 1.6.2.4 Hydroseeding Mix 1.6.2.5 Catch Basin Inlet Sediment Barrier 1.6.3 Submit confirmation from the Washington State Department of Ecology confirming contractor is NPDES General Permit for Stormwater Discharges from Construction Activities permit holder. 1.6.4 Submit confirmation from the Washington State Department of Ecology confirming NPDES General Permit for Stormwater Discharges from Construction Activities is terminated at project completion. �wr 1.6.5 Construction Stormwater Pollution Prevention Plan (CSWPPP): Contractor shall provide a site specific CSWPPP. An example CSWPPP is provided at the end of this Section. Contractor's CSWPPP shall meet the minimum requirements of the NPDES Permit and the King County Storm Manual requirements,as amended by the City of Renton. 1.6.6 Plan identifying sedimentation/storage tanks and piping plan layout. 1.7 PROJECT CONDITIONS .ir 1.7.1 Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site clearing and construction operations. 11111 1.7.1.1 Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. "`i 1.7.1.2 Provide alternate routes around closed or obstructed traffic ways if required by authorities having jurisdiction. 1.7.2 The Contractor shall utilize a utility locate service and shall notify affected utility companies before starting work and comply with all their requirements. The Contractor shall conform to applicable regulatory procedures when discovering hazardous or contaminated materials. 1.7.3 The locations of existing underground utilities are approximate only and have not been independently verified by the Owner or its representative. The Contractor shall determine the exact location of all existing utilities before commencing work and shall be fully responsible for any and all Wr damages that happen due to the Contractor's failure to locate exactly and preserve all underground utilities that are designated to remain. 1.7.4 The contractor shall include in his bid the maintenance and addition of erosion control measures as needed to comply with City of Renton and Department of Ecology requirements. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -3 rr MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 1.8 QUALITY ASSURANCE 1.8.1 Maintain a copy of the NPDES permit and CSWPPP on the project site. r�r 1.8.2 Maintain at least one copy of the WSDOT Standard Specifications for Road, Bridge and Municipal Construction, 2012 edition, and project plans and specifications on-site. ma 1.8.3 Field inspection and testing will be performed under Division 01 Section 014600 "Testing Laboratory Services." 1.8.4 Tests and analysis of aggregate material will be performed in accordance with ANSI/ASTM D1557, ASTM D2922, ASTM D3017, ASTM D4318, and ASTM C136,as applicable. 1.8.5 If tests indicate materials do not meet specified requirements, change material and retest or obtain written approval of the Engineer. Costs associated with the retesting of materials will be the responsibility of the Contractor. iri 1.8.6 Construction Conference: Conduct conference at Project site to comply with requirements in Division 01 Section 013100"Project Coordination." Kai 1.9 REGULATORY REQUIREMENTS ire 1.9.1 Conform to all requirements of the NPDES under the Department of Ecology's General Permit for Stormwater Discharges from Construction Activities and the CSWPPP. Contractor and their CESCL shall be responsible for maintaining all required records in regard to the following: 1.9.1.1 Construction activities. 1.9.1.2 Inspections. 1.9.1.3 Stabilization measures. 1.9.1.4 Maintenance. 1.9.1.5 Stormwater discharges and sampling for turbidity and pH. ■ii 1.9.2 Contractor is responsible for complying with permit and responsible for fees/penalties associated with non-compliance. 1.9.3 Conform to applicable agency code for dust control and runoff control. 1.9.4 Obtain, post, and pay for required permits from authorities according to provisions of the Contract,including General and Supplemental Conditions and Division 01 Specification Sections. 1.9.5 Proposed erosion control facilities are minimum requirements for anticipated site conditions. During the construction period, the erosion control facilities shall be maintained and/or modified as needed to comply with City of Renton erosion control policies,the NPDES,and as directed by Owner. iiti BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -4 rib MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 1.10 COORDINATION 1.10.1 Coordinate work under provisions of Division 01 Section 013100"Project Coordination." 1.10.2 Erosion control measures shall be maintained, coordinated, adjusted, and added to address changes in site conditions and construction phases at no additional cost to the Owner. 1.11 INTENT 1.11.1 It is the intent of this Specification that the Contractor provide the Work defined herein complete in every respect, and in accordance with the good practices involved in the installation of erosion control facilities, including modifying facilities as needed for storm events and changing site conditions, and the requirements of this Specification, regardless of whether or not full details of such completeness, workmanship, or practices are contained herein. PART 2 - PRODUCTS rw 2.1 EROSION AND SEDIMENT CONTROL MATERIALS 2.1.1 Filter Fence: Conform to detail. Geotextile fabric shall meet the following standards: Polymeric Mesh AOS 0.60 mm maximum for slit film wovens (#30 sieve). (ASTM D4751) 0.30 mm maximum for all other geotextile types(#50 sieve). 0.15 mm minimum for all fabric types(#100 sieve). Water Permittivity 0.02 se mini c' mum (ASTM D4491) Grab Tensile Strength 100 lbs minimum for standard strength fabric. (ASTM D4632) Grab Tensile Strength 30% maximum rr (ASTM D4632 Ultraviolet Resistance 70% minimum (ASTM D4355) err 2.1.2 Construction Entrance: Conform to detail. 2.1.3 Quarry Spalls: Conform to WSDOT 8-15.3(6). arr 2.1.4 Plastic Sheeting: Conform to WSDOT 9-14.5 and detail. 2.1.5 Hydroseeding: Conform to following: % Weight % Purity % Germination Chewings or red fescue 40 98 90 Annual or perennial rye 40 98 90 Redtop or colonial bentgrass 10 92 85 White dutch clover 10 98 90 .r. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -5 rw AIM filb MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 2.1.6 Straw Mulch: Air dried hay or straw; free from undesirable seed and coarse material, 2-inch depth minimum with no bare spots. 2.1.7 Geotextile Encased Check Dam: Conform to WSDOT 9-14.5(4). 2.1.8 Catch Basin Inlet Sediment Barrier: Conform to detail. 2.1.9 Sediment Trap and Outlet: Conform to detail. PART 3 - EXECUTION 3_1 EXAMINATION 3.1.1 Verify that site conditions are satisfactory to receive the work of this Section. Do not begin the work of this Section until unsatisfactory conditions are corrected. Beginning the work of this Section so constitutes the Contractor's acceptance of site conditions as satisfactory. 3.1.2 CESCL shall be responsible for ESC measures. The CESCL shall be designated prior to nr commencement of work on-site. 3_2 INSTALLATION AND CONDUCT OF WORK 3.2.1 Complete and receive approval of the site specific CSWPPP. rri 3.2.2 Install temporary erosion control measures as indicated on the Drawings, or as directed by the Owner's Representative or the City of Renton Inspector prior to beginning any work that will disturb the existing vegetation on the site. 3.2.3 Install erosion control measures to minimize impacts to the existing site conditions and to allow proper performance. rr 3.2.4 Straw mulch shall be applied with a 2-inch minimum thickness with no bare spots. 3.2.5 Erosion and sediment control measures shall be in place and functional as identified in the Mil Contract Documents and as necessary to prevent stormwater pollution at all times. 3.2.6 Provide and maintain additional temporary erosion control measures at no additional cost to the rwi Owner as necessary due to weather or environmental conditions and to comply with governing agency and permitting requirements. 3.2.7 Prevent pollution or excess turbidity in State waters as identified in the SWPPP and NPDES permits. us 3.2.8 Contractor shall, prior to any work being performed on the site, post a weatherproof sign at the site perimeter that provides the CESCL name,phone and fax numbers,and address information. Sign and text must be of sufficient size that the information can be easily read from a distance of 10 feet, as determined by the Architect. Sign placement location shall be approved by the Architect. us BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -6 arr MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL rr 3.2.9 Contractor shall conform to requirements of the National Pollution Discharge Elimination System (NPDES) Permit, the Construction Stormwater General Permit, and the site specific Construction Stormwater Pollution Prevention Plan (CSWPPP). The Owner will obtain the NPDES Permit and the rr Contractor shall accept transfer of the Permit coverage from the previous Contractor prior to start of work. An example CSWPPP is attached to this Section. 3_3 MAINTENANCE AND INSPECTION go 3.3.1 Temporary erosion control measures shall be maintained as required to achieve proper performance, as indicated in the Contract Documents and required by the Owner's Representative, permit agency, and as required by the Department of Ecology. 3.3.2 Use care during maintenance of erosion control facilities so as not to discharge collected sediment into the protected area. 3.3.3 The Contractor shall provide and designate a Certified Erosion and Sedimentation Control Lead (CESCL) who shall be responsible for monitoring the installation, performance, maintenance, and review of ESC measures, and for compliance with all permit conditions. The CESCL shall be designated prior to .r commencement of work on the site. 3.3.4 CESCL shall maintain a site log book. air 3.3.5 CESCL shall inspect erosion control measures at least once every calendar week and within 24 hours of any discharge from the site. Inspections shall commence when clearing work begins and continue until site work is substantially complete and permitting jurisdiction has accepted project as complete. 3.3.6 CESCL shall conduct turbidity sampling as required by Department of Ecology General Permit �+r for Stormwater Discharges from Construction Activity. 3.3.7 Contractor shall provide a contact phone number, fax number, and address where the CESCL can i„ be contacted. 3.3.8 CESCL responsibilities include: 3.3.8.1 Be on-site or available on-call during the project duration. 3.3.8.2 Implement the TESC and the CSWPPP. rr 3.3.8.3 Oversee maintenance practices identified on the plans for the erosion control measures. rr 3.3.8.4 Conduct or provide for inspection and monitoring activities. 3.3.8.5 Identify other potential pollution sources and make sure they are mitigated. 3.3.8.6 Identify deficiencies in the TESC measures and make sure they are corrected. rr NM BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -7 di ■r MEADOW CREST PLAYGROUND SECTION 312513 PROJECT NO. 11.12 EROSION CONTROL 3_4 REMOVAL 3.4.1 When approved by the City of Renton Inspector and the Owner, remove temporary facilities when the need for the facilities no longer exists. 3.4.2 Clean sediment and/or pollutants from facilities that are to remain. e ii 3.5 CLEAN-UP e n 3.5.1 Upon completion of the work of this Section, remove all rubbish, trash, and debris resulting from operations. 3.5.2 Remove materials, equipment, and tools; leave the site in a neat and orderly condition acceptable to the Owner's Representative. 3.5.3 At the completion of the site improvements and after the work area has been stabilized with final ■r surfacing and landscaping or seeding, the contractor shall remove all temporary erosion control mechanisms and facilities. rw 3.6 PERMIT TERMINATION 3.6.1 The contractor is responsible for completing and submitting the "Notice of Termination Form"to close the NPDES Construction Stormwater General Permit. END OF SECTION 312513 1111 ✓ri BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 312513 -8 ✓ri c i ' ,-,• tb,---,,,tek., •'N ., 1 • ,4: B L R H gill ill water . _Storm_ _ Plan Construction evenly" Con Pr Pollution pa FOR: PREPARED .. aik a,,...,n.-.,.. , )4.,t.,I.,„.,...,,,,'„`.'„,•-:,,,.,,„„,,,,,•,•',,;,,7,,.—•.. l',A4.„ ..... , Renton :c c n o 01 District 7812 South 124th Street 1 Seattle, WA 98178 PROJECT Renton Early Childhood Learning ea ming Center , 1800IndexAvenue Renton, WA 980-6 Kin9county, washington 210515.10 PREPARED BY: Jennifer M. Kelly, PE 44,4f.,4 , s , I 44 4 4 4 4 4 , Project Engineer w : E.., ED BY REVIEWED PE C. Nas°'n''Manager • man 9 David k•-Project - Civil PE, LEED AP 4':•0' '' , ,e . Gavin, Doreen S. n ,,...t- Dor-p President „.3., - Vice „..- --, DATE: ,. .. Neighbors Surveyors ,Land ,t 4, .,-em tS ' L-- nF we nb ayrUpa larYnne2 rs01.21 A, fch/tec „.. .,.--.,',...• Landscape,-, . Lao Engineers , Structural . ineers Civil Eng Civ so 4111111.1111111111111101111111111111111, lire 111 1111 101 I. Construction Stormwater Pollution Prevention Plan MS PREPARED FOR: 10 of Renton School District ° 7812 South 124th Street Mb ," 'S. It;,E;\ Seattle, WA 98178 • T, E ',4,41/ zt../tel4 PROJECT. itio 1, `4-t �`t ` M' Renton Early Childhood Learning Center '-�' I 23467 1800 Index Avenue �r h,on1 , Renton, WA 98056 sSroNAx. King County, Washington 210515.10 ill PREPARED BY; I hereby state that this Construction NI Stormwater Pollution Prevention Plan for Jennifer M. Kelly, PE the Renton Early Childhood Learning Project Engineer Center project has been prepared by me iii or under my supervision, and meets the standard of care and expertise that is REVIEWED BY: usual and customary in this community for professional engineers. I understand David C. Nason, PE Ili that City of Renton does not and will not assume liability for the sufficiency, Civil Project Manager suitability, or performance of drainage iiit facilities prepared by me. Doreen S. Gavin, PE, LEED AP Vice President Ili DATE: February 2012 7 1 1 Table of Contents 1 SECTION PAGE 1.0 Introduction 1 2.0 Project Description 2 3.0 Certified Erosion and Sediment Control Lead 2 4.0 Existing Site Conditions 3 4.1 Existing Cover 3 4.2 Topography and Drainage 3 4.3 100-Year Flood Analysis 3 +�w 4.4 Adjacent Areas 3 5.0 Critical Areas 3 6.0 Erosion Problem Areas 3 7.0 Construction Stormwater Pollution Prevention Elements 4 ayr 7.1 Mark Clearing Limits 4 7.2 Establish Construction Access 4 7.3 Control Flow Rates 4 7.4 Install Sediment Controls 4 7.5 Stabilize Soils 5 7.6 Protect Slopes 6 7.7 Protect Drain Inlets. 6 7.8 Stabilize Channels and Outlets 6 7.9 Control Pollutants 6 7.10 Control Dewatering 9 7.11 Maintain BMPs 9 7.12 Manage the Project 12 8.0 Construction Phasing 13 9.0 Construction Schedule 15 rrr sr Construction StormwaterPollution Prevention Plan OCH30 Renton Early ChildhoodildhoodLearning Center 210515.10 rr AMEMOMMOMIL Appendices Appendix A 'r"' Exhibits A-1 Vicinity Map A-2 Existing Conditions Map A-3.1 TESC Plan A-3.2 TESC Plan A-3.3 TESC Plan A-3.4 TESC Plan Appendix B Geotechnical Report 1111 Figure B-1 Subsurface Exploration, Preliminary Geotechnical Engineering and Infiltration Report. Associated Earth Sciences, Inc., November 18, 2010 Figure B-2 Preliminary Design Infiltration Rate Technical Memorandum Associated Earth Sciences, Inc., August 15, 2011 Figure B-3 Summary of Additional Borings to Delineate Existing Fill Associated Earth Sciences, Inc.,August 17, 2011 Appendix C Selected Department of Ecology Source Control BMPs 11111 Appendix D wr Inspection and Maintenance Report Forms Appendix E 11111 Sediment Pond Design Calculations mto Construction Stormwater Pollution Prevention Plan 0000 Renton Early Childhood Learning Center tot 210515.10 ,rr 1.0 INTRODUCTION In 1972, Congress passed the Federal Water Pollution Control Act(FWPCA), also known as the Clean Water Act(CWA), to restore and maintain the quality of the nation's waterways. The ultimate goal was to ensure that rivers and streams were fishable, swimmable, and drinkable. In 1987,the Water Quality Act (WQA)added provisions to the CWA that allowed the EPA to govern stormwater discharges from construction sites. In 1998, the EPA published the final notice for General Permits for Storm Water Discharges from Construction Activities Disturbing 5 Acres or Greater(63 Federal Register 7898, February 14, 1998). The general permit includes provisions for development of a Stormwater Pollution Prevention Plan (SWPPP) to maximize the potential benefits of pollution prevention and sediment and erosion control measures at construction sites. Development, implementation, and maintenance of the Construction SWPPP will provide the selected General Contractor with the framework for reducing soil erosion and minimizing '""' pollutants in stormwater during construction. The Construction SWPPP will: • Define the characteristics of the site and the type of construction that will occur; • Describe the practices that will be implemented to control erosion and the release of pollutants in stormwater; • Create an implementation schedule to ensure that the practices described in this Construction SWPPP are, in fact, implemented, and to evaluate the plan's effectiveness in reducing erosion, sediment, and pollutant levels In stormwater discharged from the site; and • Describe the final stabilization/termination design to minimize erosion and prevent stormwater impacts after construction is complete. This Construction SWPPP includes the following: ,.. • Identification of the Construction SWPPP Coordinator with a description of this person's duties; • Identification of the Stormwater Pollution Prevention Team (SWPP Team)that will assist in Implementation of the Construction SWPPP during construction; • Description of the existing site conditions, including existing land use for the site, soil types at the site, as well as the location of surface waters that are located on or next to the site; • Identification of the body or bodies of water that will receive runoff from the construction site, including the ultimate body of water that receives the stormwater; • Identification of drainage areas and potential stormwater contaminants; • Description of stormwater management controls and various Best Management Practices (BMPs) necessary to reduce erosion, sediment, and pollutants in stormwater discharge; • Description of the facility monitoring plan and how controls will be coordinated with construction activities; and • Description of the implementation schedule and provisions for amendment of the plan. ConstructionStormwater Pollution Prevention Plan13) QQ r Reentonton Early y Childhood Learning Center 1 210515.10 las 2.0 PRO3ECT DESCRIPTION This report accompanies the civil engineering plans and documents for the Renton School District's Early Childhood Learning Center(ECLC) located at 1800 Index Avenue,on Parcels INN 722780-0135 and 722780-0155 in the city of Renton, King County, Washington. The parcel proposed to be developed is approximately 7.46 acres in size. This parcel is a portion of the Southwest Quarter of Section 4, Township 22 North, Range 5 East, of the Willamette Meridian. See Appendix A-1 for a Vicinity Map. The project proposes to construct a new building to house the ECLC, demolish the existing structure, and improve the site and site infrastructure. Stormwater management is to comply with the 2009 King County Surface Water Design Manual(KCSWDM)and City of Renton Amendments. A construction entrance will be provided off Index Avenue NE. General drainage patterns of the site will be maintained during the construction activities. The ■ site will remain relatively flat, and temporary erosion control facilities will be constructed to prevent sediment-laden runoff from leaving the site boundaries. The new pollution generating impervious surfaces for the proposed site include the paved parking lot on the west side of the site and the bus loops on the north and south sides of the site. In its developed condition,flow control will be provided through the use of full infiltration in the form of infiltration trenches. Onsite flows will be treated to meet the performance standard of the Basic Water Quality Menu by utilizing rain gardens. Site runoff will be entirely infiltrated onsite in infiltration trenches. .ua 3.0 CERTIFIED EROSION AND SEDIMENT CONTROL LEAD The Contractor shall appoint a Certified Erosion and Sediment Control Lead (CESCL) (BMP C160) for the project. The duties of the CESCL include: illit • Maintaining files onsite at all times,which include the Construction SWPPP and any associated permits and plans; • Directing BMP installation, inspection, maintenance, modification, and removal; • Completing and filing a monthly discharge monitoring report with the Department of Ecology(DOE). • Updating all project drawings and the Construction SWPPP with changes made; U • Keeping daily logs and inspection reports; • Facilitating, participating in, and taking corrective actions resulting from inspections performed by outside agencies or the owner. U CRenton n Stormwaterd Pollution Prevention Plan Q C31:1131 Renton Early Childhood Learning Center 2 rrr 210515.10 am arr To aid in the implementation of the Construction SWPPP,the members of the SWPP Team include the following: the Contractor,the CESCL, the City of Renton Inspector, and AHBL. The General Contractor will ensure all housekeeping and monitoring procedures are implemented, while the CESCL will ensure the integrity of the structural BMPs. The City of Renton Inspector and AHBL will observe construction and erosion control practices and recommend revisions or additions to the Construction SWPPP and drawings. 4.0 EXISTING SITE CONDITIONS 4.1 Existing Cover The site is currently occupied by the Hillcrest School. The existing one-story structure is located in the center of the site. A parking lot is located on the west side of the site and parallels Index Avenue. There is a covered play area on the east side of the site, paved and grass play areas, as well as a few portable classrooms. The site generally slopes down from the northeast corner to the southwest corner. According to 1111 the Geotechnical Report,completed by Associated Earth Sciences, Inc., the site consists of Vashon Lodgement Till over Vashon Advanced Outwash. Refer to Appendix A-2 for the Existing Conditions Map. 4.2 Topography and Drainage ■ Currently, the site slopes down to the southwest corner of the site. Surface runoff is mainly collected by a conventional storm collection system that outlets to the city storm system in NE 16th Street. The proposed project will infiltrate developed conditions runoff. The site is located in the May Creek Basin. 4.3 100-Year Flood Analysis The site is not located in a floodplain. 4.4 Adjacent Areas The project site is bounded by multi-family housing and North Highlands Park to the east, NE 16th Street to the south, Index Avenue NE to the west,and Harrington Avenue NE to the north. 5.0 CRITICAL AREAS There are no known wetlands on or in the vicinity of the site. �r. According to the Geotechnical Report, completed by Associated Earth Sciences, Inc., the site consists of Vashon Lodgement Till over Vashon Advanced Outwash and is suitable for onsite infiltration. 6.0 EROSION PROBLEM AREAS `ill There do not appear to be any potential erosion control problem areas onsite. Refer to this report for recommended construction slopes and erosion control measures. air Construction Stormwater Pollution Prevention Plan 13100111 Renton Early Childhood Learning Center 3 210515.10 rrr r�r 7.0 CONSTRUCTION STORMWATER POLLUTION PREVENTION ELEMENTS The purpose of this section is to describe how each of the 12 Construction Stormwater Pollution Prevention elements has been addressed and to identify the type and location of BMPs used to satisfy the required element. If a stormwater pollution prevention element is not applicable to the project, a reason is provided. 7.1 Mark Clearing Limits " Clearing limits are identified on the plans. Prior to beginning land disturbing activities, clearing limits will be marked with flagging, high visibility plastic,or metal fence (BMP C103). 7.2 Establish Construction Access 1111 A stabilized construction entrance will be used to prevent the transport of sediment onto the adjacent paved surfaces. If sediment is transported onto the road surface,the road shall be cleaned each day by shoveling or sweeping prior to washing. Sediment removal by washing alone will not be allowed. If sediment is tracked from the site, the City may require stabilization of Internal roads and car parking areas to contain the sediment or require the installation of a wheel wash basin. Dump trucks hauling material to and from the site will be covered by a tarp. 7.3 Control Flow Rates Some perimeter runoff will sheet flow off the property. Runoff will be controlled by perimeter filter fence(BMP 233). The majority of runoff generated onsite will be trapped and infiltrated within temporary facilities. 7.4 Install Sediment Controls r�r Structural control measures will be used to reduce erosion and retain sediment on the construction site. The control measures are selected to fit specific site and seasonal conditions. The temporary erosion and sediment control (TESC) plans include the following structural measures(see Appendices A-3.1 through A-3.4): 1. Stabilized construction entrance to prevent transport of sediment onto existing asphalt pavement. The entrance shall be constructed using quarry spalls per the detail on the plans, 2. Filter fabric fencing (BMP C233)will be required around portions of the perimeter of the site to prevent sediment-laden stormwater from being transported offsite and around stockpile areas. 3. Storm Drain Inlet Protection (BMP C220)will be required at all existing inlets within the vicinity and immediately downstream of the project limits. Additional inlet protection shall be provided as new catch basins are put online, These measures are installed to prevent sediment-laden runoff from being transported offsite. Irr Construction Stormwater er Pollution Prevention Plan 011100 Renton Early Childhood Learning Center 4 ii 210515.10 1 4. A temporary sediment pond is proposed to remove sediment from stormwater runoff. An interceptor ditch with rock check dams (BMP 241) will direct stormwater to the pond. The Sediment pond shall be constructed per the details provided on the engineering plans. Sediment pond calculations are provided in Appendix E. 7.5 Stabilize Soils ®+r Because source control is the most important form of erosion control, construction practices must adhere to stringent cover requirements. Exposed and unworked soils shall be stabilized with the application of effective BMPs to prevent erosion throughout the life of the project. The specific BMPs for soil stabilization that shall be used on this project include: • Temporary and Permanent Seeding (BMP C120) • Topsoiling (BMP C125) • Mulching (BMP C121) More specifically, during the period of May 1 through September 30, the Contractor will not be allowed to leave soils unprotected for more than 7 days, and immediate seeding will be required for areas brought to finish grade with no further work planned for the next 30 days. Areas to be paved may be armored with crushed rock subbase in place of other stabilizing measures. The area of clearing will be limited to the amount that can be stabilized by September 30 of that year. •,,, During the period of October 1 through April 30, all disturbed soil areas will be covered or stabilized within 2 days or 24 hours when a major storm event is predicted. Cover measures may include mulching, netting, plastic sheeting, erosion control blankets, or free draining material. The extent of clearing shall be limited to the amount of land that can be covered or stabilized within 24 hours. Soil stockpiles shall be stabilized by plastic covering or surrounded by filter fabric fence. air The Contractor has the option of providing all required material for cover measures onsite at all times, or preparing a plan of action to submit to the City of Renton. A plan of action shall contain the following: • Contractor's name, address, phone number, emergency phone number. • Alternate contact with above information. • Clearly defined plan of action designed to prevent offsite migration of sediments, which will be Implemented in the event that a major storm is predicted or offsite erosion is observed by the Contractor, his/her employees, or the City. • Description of materials to be used for cover and means by which it will be placed. List equipment to be used or number of personnel anticipated to be used to spread material. • Vendor or supplier of materials to be used; list two alternates and include phone numbers. • • Means and timeframe for cleanup of any materials that escape offsite and for repairs to the natural system if damages have occurred. - Constructlo�St Childhood er Learning Prevention Plan 1313011 Renton Early Childhood Center 5 210515.10 rr In order for the erosion and sediment control (ESC)facilities to function properly, they must be maintained and sediment removed on a regular basis. Inspection and sediment removal shall be performed on all ESC facilities as described in the inspection schedule located in Section 7.11 of this report. 7.6 Protect Slopes All cut and fill slopes will be designed, constructed, and protected in a manner that minimizes erosion. The following specific BMPs will be used to protect slopes for this project: • Temporary and Permanent Seeding (BMP C120) • Nets and Blankets (BMP C122) For areas where excavations deeper than 4 feet occur, the Contractor shall excavate existing grade back at a minimum slope of 1.5:H to 1:V. 7.7 Protect Drain Inlets Existing storm drains are located throughout the site. All proposed storm drain inlets and culverts made operable during construction shall be protected to prevent unfiltered or untreated water from entering the drainage conveyance system. However, the first priority is to keep all access roads clean of sediment and keep street wash water separate from entering storm drains until treatment can be provided. Storm drain inlet protection (BMP C220) will be implemented for all drainage inlets and culverts that could potentially be impacted by sediment-laden runoff on and near the project site. Drop inlet protection measures will be applied on this project. Storm drain inlet sediment protection will prevent coarse sediment from entering the drainage system prior to permanent stabilization of the disturbed areas. 7.8 Stabilize Channels and Outlets The site has limited access to surface water channels downstream. All runoff shall be trapped and maintained onsite. The Contractor shall filter all surface runoff through sediment trapping facilities prior to release to temporary retention ponds onsite. Due to the excellent infiltration capacity of onsite soils, runoff should be minimal. Temporary retention facilities shall be closely monitored and maintained to ensure they are infiltrating clean stormwater runoff. Temporary pumping shall be provided as necessary to keep sediment ponds and temporary retention ponds from overflowing onto adjacent properties. All drainage swales or ditches shall be provided with check dams and culverts,and ditch outlets provided with riprap pads as required to minimize storm velocities and transport of sediment. rre 7.9 Control Pollutants The Contractor shall be responsible for controlling pollutants at the work site. Key elements, such as centralized areas for equipment and concrete truck washing, and temporary storage of debris and other stockpiled materials, are the responsibility of the Contractor. All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of stormwater. Good Construction Stormwater er Pollution Prevention Plan DIDOIN Renton Early Childhood Learning Center 6 wrri 210515.10 IN housekeeping and preventative measures will ensure that the site will be kept clean, well- organized, and free of debris. If required, BMPs to be implemented to control specific sources of pollutants are discussed below. Vehicles, Construction Equipment, and/or Petroleum Product Storage/Dispensing: I • Ali vehicles, equipment, and petroleum product storage/dispensing areas will be inspected regularly to detect any leaks or spills, and to identify maintenance needs to prevent leaks or spills. • Onsite fueling tanks and petroleum product storage containers shall include secondary containment. • Spill prevention measures, such as drip pans, will be used when conducting maintenance and repair of vehicles or equipment. • In order to perform emergency repairs onsite, temporary plastic will be placed beneath and, if raining, over the vehicle. • Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. rr Demolition: • Dust released from demolished sidewalks, buildings, or structures will be controlled using dust control measures (BMP C140). • Storm drain inlets vulnerable to stormwater discharge carrying dust, soil, or debris will be protected using storm drain inlet protection(BMP C220,as described above in Section 7.7 for Element 7). wit • Process water and slurry resulting from sawcutting and surfacing operations will be prevented from entering the waters of the state by implementing sawcutting and surfacing pollution prevention measures(BMP C152). Concrete and Grout: • Process water and slurry resulting from concrete work will be prevented from entering the waters of the state by implementing concrete handling measures (BMP C151). Cover, containment, and protection from vandalism shall be provided for all chemicals, liquid products, petroleum products, and non-inert wastes present on the site (see Chapter 173-304 WAC for the definition of inert waste). Onsite fueling tanks shall include secondary containment. Maintenance and repair of heavy equipment and vehicles involving oil changes, hydraulic system drain down, solvent and degreasing cleaning operations, fuel tank drain down and removal, and other activities that may result in discharge or spillage of pollutants to the ground or into stormwater runoff must be conducted using spill prevention measures, such as drip pans. Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. Emergency repairs may be performed onsite using temporary plastic placed beneath and, if raining, over the vehicle. wr Construction Stormwater Pollution Prevention Plan 01001/ Renton Early Childhood Learning Center 7 210515.10 rir Wheel wash or tire bath wastewater shall be discharged to a separate onsite treatment system or to the sanitary sewer. Application of agricultural chemicals, including fertilizers and pesticides, shall be conducted in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Manufacturers'recommendations for application rates and procedures shall be followed. BMPs shall be used to prevent or treat contamination of stormwater runoff by pH modifying sources. These sources include, but are not limited to, bulk cement, cement kiln dust, fly ash, new concrete washing and curing waters, waste streams generated from concrete grinding and sawing, exposed aggregate processes, and concrete pumping and mixer washout waters. Stormwater discharges shall not cause or contribute to a violation of the water quality standard for pH in the receiving water. Construction sites with significant concrete work shall adjust the pH of stormwater, if necessary, to prevent violations of water quality standards. The Contractor may elect to follow the detailed guidance on control of non-sediment pollutants as outlined in the Stormwater Management Manual for Western Washington, DOE, February 2005, Section 11-4 (selected BMPs included as Appendix C). Table 1 below lists several pollutants that are commonly found on construction sites that have the potential to contaminate storm runoff. These pollutants will be present mainly in areas of building and pavement construction. The Contractor and Construction SWPPP/TESC Coordinator will be responsible for identifying areas where these pollutants are being used, and will monitor ;, runoff coming from these areas. Pollutant sources will be covered with plastic if contaminated runoff is observed from these areas. If contaminated runoff is found in the sediment trap or soils, the CESCL will direct the Contractor to remove the polluted water/soil and dispose of it in an approved area offsite. Table 1—Potential Construction Site Stormwater Pollutants Trade Name Chemical/Physical Stormwater Material Description(1) Pollutants(1) Pesticides (insecticides, Various colored to colorless Chlorinated hydrocarbons, r fungicides, herbicide, liquid, powder, pellets, or organophosphates, rodenticides) grains carbamates,arsenic Fertilizer Liquid or solid grains Nitrogen, phosphorous Plaster White granules or powder Calcium sulphate,calcium carbonate, sulfuric acid Cleaning solvents Colorless, blue, or yellow- Perchloroethylene, methylene green liquid chloride, trichloroethylene, petroleum distillates Asphalt Black solid Oil, petroleum distillates Concrete White solid Limestone, sand Glue, adhesives White or yellow liquid Polymers, epoxies .r Constructionton Stormwaterd ion Preventionnt Plan O C3011Renton Early Childhood Learning Center 8 1111 210515.10 Trade Name Chemical/Physical Stormwater Material Description(i) Pollutants' Paints Various colored liquid Metal oxides, stoddard solvent, talc, calcium carbonate, arsenic Curing compounds Creamy white liquid Naphtha Wastewater from Water Soil, oil &grease, solids construction equipment washing Wood preservatives Clear amber or dark brown Stoddard solvent, petroleum liquid distillates, arsenic, copper, chromium Hydraulic oil/fluids Brown oily petroleum Mineral oil hydrocarbon Gasoline Colorless, pale brown or pink Benzene, ethyl benzene, petroleum hydrocarbon toluene, xylene, MTBE Diesel fuel Clear, blue-green to yellow Petroleum distillate, oil & liquid grease, naphthalene, xylenes Kerosene Pale yellow liquid petroleum Coal oil, petroleum distillates hydrocarbon Antifreeze/coolant Clear green/yellow liquid Ethylene glycol, propylene glycol, heavy metals(copper, lead, zinc) Erosion Solid Particles Soil, Sediment (1)Data obtained from MSDS when available. rr 7.10 Control Dewatering • Dewatering during construction is not anticipated. Dewatering discharge shall be directed to a sediment trapping facility prior to discharge to the storm system. No runoff shall be directed to permanent stormwater infiltration facilities(Infiltration trenches and rain gardens) until the site has been permanently stabilized to ensure they will not become clogged. 7.11 Maintain BMPs In order for the ESC facilities to function properly, they must be maintained and sediment removed on a regular basis. Inspection and sediment removal shall be performed on all ESC facilities as described in the following inspection schedule. ESC facilities shall not be allowed to fall into disrepair. All ESC facilities shall be inspected, at a minimum, according to the following schedule. • Dry Season: Once a week • Wet Season: Daily, and after every storm event that produces runoff. ReConstruction ton io Stormwater er Learning Prevention Plan 0000 Renton EarlyChildhood Center 9 210515.10 .rr Needed repairs shall be made within 24 hours or immediately if possible. If necessary, the Engineer of Record or City will instruct the Contractor to provide additional facilities as warranted during field inspections. The following inspection/maintenance schedules shall be utilized to ensure the ESC facilities are functioning as designed: Construction Entrance: r�r • The construction entrance shall be inspected once a week during the dry season and after every rainfall event during the wet season. If the entrance is not preventing sediment from being tracked onto adjacent pavement, then alternate measures to keep the pavement free of sediment shall be used. This may include street sweeping, an increase in the dimension of the entrance, or the installation of a wheel wash. • Any quarry spalls that are loosened from the pad that end up on the roadway shall be removed immediately. Additional rock shall be added periodically to maintain proper function of the pad. • If vehicles are entering or exiting the site at points other than the approved entrance, temporary fencing shall be installed to control traffic. Sediment Trapping Facility: • The sediment trap shall be inspected once a week during the dry season and after every rainfall event during the wet season. • Sediment shall be removed from the trap when it reaches 1 foot in depth. r • The staff gauge shall be inspected and replaced if damaged,and then repositioned after dredging. Any damage to the trap slopes shall be repaired. • Check pond slopes for raveling. Concentrated flows shall not be allowed to flow down the pond slopes without providing rock armoring. • Inspect outlet to ensure it is functioning properly and is not plugged. Temporary and Permanent Seeding: • Seeding may be used throughout the project on disturbed areas. During the dry season, areas that have reached final grade or are not being actively worked shall be seeded within 15 days. Seeded areas shall be supplied with adequate moisture, but not watered to the extent that it causes runoff. • During the wet season, all disturbed areas not being actively worked shall be seeded or stabilized with mulch or plastic sheeting. • To prevent seed from being washed away, confirm that all other approved erosion/sedimentation control facilities have been installed and are functioning properly. •r• Construction Stormwater Pollution Prevention Plan Q©CIO! Renton Early Childhood Learning Center 10 ilw 210515.10 • Any seeded areas that fail to establish 80 percent cover(100 percent cover for areas that receive sheet or concentrated flows) shall be reseeded. If reseeding is ineffective, an alternate method shall be used. • Seeded areas shall be inspected after every rainfall event during the wet season. Any areas that experience erosion shall be reseeded and protected by mulch. If the erosion problem is drainage related, the problem shall be fixed and the eroded area reseeded and protected by mulch. • Seeding shall not be used in areas subject to heavy vehicular traffic. Mulching: • Mulching shall be inspected once a week during the dry season and after every rainfall event during the wet season. • Mulch shall be inspected to verify that the proper thickness is being maintained, if applicable. • Any areas that experience erosion shall be re-mulched and/or protected with a net or blanket. If the erosion problem is drainage related, the problem shall be fixed and the eroded area re-mulched. Plastic Covering: • Plastic sheeting shall be inspected once a week during both the wet and dry seasons. • Torn sheets must be replaced and open seams repaired. • If the plastic begins to deteriorate due to ultraviolet radiation, it must be completely removed and replaced. • When the plastic is no longer needed, it shall be completely removed. air • If tires are used to weight down the plastic sheeting, they must be disposed of properly. Filter Fabric Fence: • Any damage shall be repaired immediately. • If concentrated flows are evident uphill of the fence, they must be intercepted and conveyed to a sediment pond. ass • Check the uphill side of the fence for signs of the fence clogging and acting as a barrier to flow, and causing channelization of flows parallel to the fence. If this occurs, replace the fence or remove the trapped sediment. • Sediment deposits shall be removed when the deposit reaches approximately one-third the height of the silt fence, or a second silt fence shall be installed. • If the filter fabric(geotextile) has deteriorated due to ultraviolet breakdown, it shall be replaced. Construction Stormwater er PollutionPrevention Plan 01B00 Renton Early Childhood Learning Center 11 210515.10 rr fir If the erosion control facilities are damaged, or if the Engineer of Record or City of Renton determines that existing controls are inadequate,the Contractor shall install additional measures as required. The maintenance inspection report will be made after each inspection. Copies of the report forms to be completed by the Construction SWPPP Coordinator are included in Appendix D of this Construction SWPPP. Completed forms will be provided to the City Inspector and will also be maintained onsite during the entire construction project. If construction activities or design modifications are made to the site plan that could impact stormwater,or if the Engineer of Record determines that the measures are not adequate to prevent erosion and the discharge of sediment from the site (based on turbidity measurements), this Construction SWPPP will be amended appropriately. The amended Construction SWPPP will have a description of the new activities that contribute to the increased pollutant loading and the planned source control activities. aa 7.12 Manage the Project The following practices will be required during construction to properly manage activities: „•• • Comply with seasonal work limitations. • Phase construction such that earthwork occurs during the dry season. • Inspect, maintain, and repair BMPs. • Identify a CESCL. • Report spillage or discharge of pollutants within 24 hours. • Maintain the Construction SWPPP, including narrative and plans onsite at all times. Erosion control procedures, as described in this Construction SWPPP and illustrated on the design plans, if properly implemented, should mitigate anticipated erosion effects from the proposed filling on the project site. The success of erosion control measures is usually related to the Contractor's attention to maintenance of such measures. However, in some instances, even with proper attention being paid to erosion control, measures such as those shown on the plans are unable to prevent the discharge of turbid water. In this event, secondary measures may be required such as construction stormwater chemical treatment(BMP C250) or construction stormwater filtration (BMP C251). Also, additional cover measures may be implemented including sodding (BMP C124)or polyacrylamide for soil erosion protection (BMP C126). Descriptions of the above-listed BMPs are provided in Volume II of the DOE Surface Water Management Manual and will be provided to the Contractor if required. Water quality monitoring of the stormwater discharge from the project site shall be provided per the requirements of the National Pollutant Discharge Elimination System (NPDES) permit. Construction Stormwater Pollution Prevention Plan al DOI Renton Early Childhood Learning Center 12 210515.10 r rYY 8.0 CONSTRUCTION PHASING The Renton Early Childhood Learning Center project will be completed in two phases. The planned construction sequence is as follows: • Notify City of Renton officials of contact information for CESCL. Post sign with name and phone number of ESC supervisor(may be consolidated with the required notice of construction sign). • Schedule and attend preconstruction meeting with City officials. • Survey and flag clearing limits. Install tree protection fence at clearing limits. • Provide miscellaneous demolition, and clear and grub area within clearing limits required for installation of temporary erosion control facilities. All erosion and sediment control facilities shown on the erosion control plan shall be installed prior to or as a first stage of site preparation. • Install catch basin protection. • Provide, maintain and/or repair construction entrance with culvert, filter fabric fence, and interceptor swales as shown on the construction plans. • Construct sediment ponds. A rough-graded, permanent rain garden will be used as a sediment pond during construction. • Grade and stabilize construction roads. • The Contractor shall inspect erosion control measures per the inspection schedule for ESC facilities on Sheet C1.11. • Phase 1: demolish existing structures, fencing, and utilities per Sheets CD1.01 through CD1.04 of this set. The Contractor shall be responsible for removal/hauling/dumping of demolished materials. • Construct surface water controls (interceptor dikes, pipe slope drains, etc.)simultaneously with clearing and grading for project development. Provide, maintain, and/or repair temporary interceptor swales/dikes and rock check dams as grading progresses. • Complete rough grade of drive aisles, parking, and building pads. Provide building foundations/retaining walls as required for Phase 1 grading operations. ail • Provide Phase 1 site utilities and stormwater facilities. Test storm drainage conveyance system for leaks as work progresses. • Provide inlet protection for new catch basins. • Fine grade site, pave,and construct buildings for Phase 1. Coordinate with the City for required inspections as work progresses. Remove temporary swales and dikes as required for road construction. CoRenton Early Stormwater er Pollution Prevention Plan 003011 Renton Childhood LearningCenter 13 210515.10 • Seed, fertilize, and mulch all remaining disturbed areas and provide grasspave. • After Phase 1 has been permanently stabilized, clean storm drainage systems: pump out sediment ponds as needed, and remove sediment from sediment pond/permanent rain garden, catch basin sumps, and conveyance pipes. • Call for inspections. Erosion control measures shall remain in place until approved by the City. th+ • Provide cover measures to include armoring, mulching, and hydroseeding to stabilize denuded areas and prevent the transport of sediment-laden stormwater offsite. Cover measures shall be applied to all areas as described in the standard erosion control notes on Sheet C8.1a. • Maintain erosion control measures in accordance with Appendix D of the KCSWDM and `rrr manufacturer's recommendations. • Relocate erosion control measures or install new measures so that, as site conditions change, the erosion and sediment control is always in accordance with the City's erosion and sediment control standards. • Cover all areas that will be unworked for more than seven days during the dry season or two days during the wet season with straw, wood fiber mulch,compost, plastic sheeting, or equivalent. • Stabilize all areas that reach final grade within seven days. • Seed or sod any areas to remain unworked for more than 30 days • Phase 2: demolish existing structures,fencing, and utilities per Sheets CD1.01 through CD1.04 of this set. The Contactor shall be responsible for removal/hauling/dumping of demolished materials. .•• • Complete rough grade of drive aisles, parking, and building pads. Provide building foundations/retaining walls as required for Phase 2 grading operations. wig • Provide Phase 2 site utilities and stormwater facilities. Test storm drainage conveyance system for teaks as work progresses. • Provide inlet protection for new catch basins. • Fine grade site, pave, and construct buildings for Phase 2. Coordinate with the City for required inspections as work progresses. Remove temporary swales and dikes as required for road construction. • Seed,fertilize, and mulch all remaining disturbed areas. • After Phase 2 has been permanently stabilized, clean storm drainage systems: pump out sediment ponds as needed, and remove sediment from sediment pond/permanent rain garden, catch basin sumps,and conveyance pipes. Construction Stormwater Pollution Prevention Plan OW = D Renton Early Childhood Learning Center 14 210515.10 ww • Upon completion of the project, all disturbed areas must be stabilized and BMPs removed if appropriate. • Contact City for final inspection. • Remove remaining temporary erosion control devices when area has been permanently stabilized with vegetation and removal is approved by the City. 9.0 CONSTRUCTION SCHEDULE Construction is scheduled to begin in summer 2012 and be completed by summer 2013. mos This analysis is based on data and records either supplied to or obtained by AHBL, Inc. These documents are referenced within the text of the analysis. The analysis has been prepared utilizing procedures and as practices within the standard accepted practices of the industry. We conclude that this project, as proposed, will not create any new problems within the existing downstream drainage system. This project will not noticeably aggravate any existing downstream problems due to either water quality or quantity. AHBL, Inc. �vt.ffJe fer M. Kelly, PE Project Engineer JK/isk February 2012 Q:\2010\210515\WORDPROC\Reports\20120203 Rpt_(CSWPPP)_210515.10.docx our aim rrr ConstructiontonStormwaterd Pollution CePrnter Plan C:112013 ire Renton Early Childhood Learning Center 15 210515.10 rr aw Appendix A Exhibits JO A-1 Vicinity Map A-2 Existing Conditions Map A-3.1 TESC Plan A-3.2 TESC Plan a„ A-3.3 TESC Plan A-3.4 TESC Plan OS rrr ON OM MO MO O OW Constructio Stormwater Pollution Prevention Plan OW - O irr Renton EarlyChildhood LearningCenter 210515.10 IN UM ''l ,6' 44 : t .;• x-..--:;i'-' -;.;7:7'.i-1 ,q ,-;:.,i,.;,..,,„-,i, --,:-.4.,;p:4g.„?q!,tIe,!t.‘ii-41..,,,,. .,.w=i-ii,-;74$4b!it,,,,.!,i,,..,,z,N::„,,,,ipi,:;-.4 „, , 4 ..,-)i;-,-_,..,4:4,1,-:::... .,1,-,6 -;.4,:,•i.,4:1 -,:. •:::1:,,.,,.ii.:,:.i :,4..,,.,,,,,:.7pe.f.viff,_4:•.-: :7;-: :•,Kici 111,-,,14.:4:.ggqw.,,,A,R,',.,•;:1-,.v.,,,,,40,:-,:,,,,,*.-4, ; • •••,.:„,,,,:•1,.1 a 405.,.`,:i:Y--:,;:-.,:-.,‘_:-,z.---, z-'7-- ---L..',..:',,,1-,-;!-'-'-- -'''-,--- '4 ‘1•,?,'iii ',i,:::-d,i',..-i-,-,.-7:1 A vli ,&ioil ,,n,.;. ,J,:•,::..,;.!;.::i,j;,?g..:--4-,.,0. 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'. ... 'r; ;1/ \ sH, YZ Imb• $ 0I tea• g s 'n ! $< r. - -,-L - 1 i i 0 a , yz t o r _,L - i - .a a �W= yw� g o o N • .t w £133 33'S - 3NI1 H'1VW g• .g -.a a• _ - 3F % o .2%z i d LLa a s a 8 «LU 1111-SS-ddd 831N30 DNIN8V31 4OOH MHO A1EIV3 349b'N i031`0d 34rox, iyr..r 104MMMw amailr . murYrO Appendix B go Geotechnical Report Figure B-1 Subsurface Exploration, Preliminary Geotechnical Engineering and Infiltration Report. Associated Earth Sciences, Inc., November 18, 2010 Figure B-2 Preliminary Design Infiltration Rate Technical Memorandum Associated Earth Sciences, Inc.,August 15, 2011 Figure B-3 Summary of Additional Borings to Delineate Existing Fill Ng Associated Earth Sciences, Inc., August 17, 2011 rr NI r�r OS rr MN CRenton n Stormwaterd gn Prevention Plan O©aQ rr Renton Early Childhood Learning Center 210515.10 rr �rrrrrr�r * ✓ri S S S ii S S S S S S S S S iii , �� ° tee vot f ;-- al .Associated EarthSciences,Engineering Inc® 7 C84 6%n aver, Ve�irJ'a <1e fce � y y f „, y ,y : R ‘. " , 1 . '.'int.Aveliedroi.Aolo,-1,-'-'. ' at j Subsurface Exploration, Preliminary Geotechnical i ;`"s Engineering, and Infiltration Feasibility Report VVater Resources w pr, PROPOSED EARLY CHILDHOOD CENTER .Jo 1 R4r�_Y ilia1:,, ,,,. „, -F 4,�,.}► Renton, Washington Prepared for iii Environmental Assessments and Remediation Renton School District kiii c/o Greene Gasaway Architects, PLLC I k r. so-. 4,s1: ,�, �, a Project No. KE100287A November 18, 2010 iir Sustainable Development Services ai .r/ r rr ' 5 �. far.S: '.r .iiiii 1 T 1,fir., A ,;; ?`,c )I,AT . +M res ,f frx.. •4 Geologic Assessments f6 —.1 SUBSURFACE EXPLORATION, PRELIMINARY GEOTECHNICAL ENGINEERING, AND INFILTRATION FEASIBILITY REPORT PROPOSED EARLY CHILDHOOD CENTER is Renton, Washington S S Prepared for: Renton School District c/o Greene Gasaway Architects, PLLC P.O. Box 4158 Federal Way, Washington 98063 Ni • Ni Prepared by: Associated Earth Sciences, Inc. 911 5' Avenue, Suite 100 Kirkland, Washington 98033 425-827-7701 rr Fax: 425-827-5424 r November 18, 2010 Ni Project No. KE100287A Ni Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Project and Site Conditions I. PROJECT AND SITE CONDITIONS 1.0 INTRODUCTION This report presents the results of our subsurface exploration, geologic hazards, preliminary geotechnical engineering, and storm water infiltration feasibility studies for the proposed Early Childhood Center. The site location is shown on the "Vicinity Map," Figure 1. The approximate locations of exploration borings completed for this study are shown on the "Site and Exploration Plan," Figure 2. Logs of the subsurface explorations and copies of laboratory test results completed for this study are included in the Appendix. rw 1.1 Purpose and Scope The purpose of this study was to provide geotechnical engineering design recommendations to be utilized in the preliminary design of the project, and to provide infiltration feasibility recommendations to guide concept and design development phases of the project. This study included a review of selected available geologic literature, advancing seven hollow-stem auger soil borings, installing one ground water observation well, and performing geologic studies to assess the type, thickness, distribution, and physical properties of the subsurface sediments and shallow _ ground water. Geotechnical engineering studies were completed to establish recommendations for the type of suitable foundations and floors, allowable foundation soil bearing pressure, anticipated foundation and floor settlement, pavement recommendations, and drainage considerations. We also completed a limited study regarding the feasibility of infiltrating storm water generated by the new project. This report summarizes our fieldwork and offers preliminary geotechnical engineering and infiltration feasibility recommendations based on our present understanding of the project. We recommend that we be allowed to review the recommendations presented in this report and revise them, if needed, when a project design has been developed. 1.2 Authorization all Authorization to proceed with this study was granted by Mr. Calvin Gasaway of Greene Gasaway Architects, PLL,C. Our work was completed in general accordance with our scope of work and cost proposal, dated September 10, 2010. This report has been prepared for the exclusive use of Greene Gasaway Architects, PLLC, the Renton School District (District), and their agents for specific application to this project. Within the limitations of scope, schedule, and budget, our services have been performed in accordance with generally accepted geotechnical engineering, engineering geology, and hydrogeology practices in effect in this area at the time our report was prepared. No other warranty, express or implied, is made. 1111 November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/1b-KE100287A 2•Projecrs1201002871KE1 WP Page 1 nr rre Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report rrr Renton, Washin:ton Project and Site Conditions 2.0 PROJECT AND SITE DESCRIPTION The project site is that of the existing Early Childhood Center, which.is housed in a building previously used as an elementary school and middle school. We understand that the proposed project will include demolition of all of the existing buildings and construction of a new Early Childhood Center facility. No project concept had been prepared when this report was written. Storm water management plans has also not been formulated. We anticipate that the new facility will include low rise buildings with foundation loads typical of local school construction. We anticipate that the new buildings will be constructed close to existing grades without the need for substantial earthwork cuts or fills. The existing facility includes permanent and portable buildings along the west side of the site, to existing paved parking areas west and northeast of the main buildings, and paved and unpaved play areas east of the existing school. A natural turf soccer field is located north and east of the existing buildings. The site is relatively flat, with overall vertical relief visually estimated at less than 10 feet. The site does not appear to contain areas that will trigger geotechnical critical areas regulations related to steep slopes or seismic hazards. 3.0 SUBSURFACE EXPLORATION Our subsurface exploration completed for this project included advancing seven hollow-stem auger soil borings and installing one ground water observation well. The conclusions and r�r recommendations presented in this report are based on the explorations completed for this study. The locations and depths of the explorations were completed within site and budget constraints. 3.1 Exploration Borings The exploration borings were completed by advancing hollow-stem auger tools with a track- mounted drill rig. During the drilling process, samples were obtained at generally 2.5- to 5-foot-depth intervals. The exploration borings were continuously observed and logged by a lei representative from our firm. The exploration logs presented in the Appendix are based on the field logs, drilling action, and inspection of the samples secured. Disturbed but representative samples were obtained by using the Standard Penetration Test (SPT) procedure in accordance with American Society for Testing and Materials (ASTM):D 1586. This test and sampling method consists of driving a standard, 2-inch r outside-diameter, split-barrel sampler a distance of 18 inches into the soil with a 140-pound hammer free-falling a distance of 30 inches. The number of blows for each 6-inch interval is November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. DWG/it.-KE100287A2-Projecis1201002874KEIWP Page 2 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Project and Site Conditions •• recorded, and the number of blows required to drive the sampler the final 12 inches is known as the Standard Penetration Resistance ("N") or blow count. If a total of 50 is recorded within one 6-inch interval, the blow count is recorded as the number of blows for the corresponding number of inches of penetration. The resistance, or N-value, provides a measure of the relative density of granular soils or the relative consistency of cohesive soils; these values are plotted on the attached exploration boring logs. rrr The samples obtained from the split-barrel sampler were classified in the field and representative portions placed in watertight containers. The samples were then transported to our laboratory for further visual classification. 4.0 SUBSURFACE CONDITIONS Subsurface conditions at the project site were inferred from the field explorations accomplished for this study, visual reconnaissance of the site, and review of selected applicable geologic literature. Because of the nature of exploratory work below ground, extrapolation of - subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may sometimes be present due to the random nature of deposition and the alteration of topography by past grading and/or filling. The nature and extent of any variations between the field explorations may not become fully evident until construction. 4.1 Stratigraphy Surficial Topsoil Ile Our exploration borings which were completed in unpaved areas generally encountered approximately 6 to 8 inches of topsoil and grass. Topsoil is not suitable for structural support, and should be stripped from structural areas. Excavated topsoil may be suitable for reuse in landscape areas. ,■. Existing Paving Existing paving was encountered at two of the exploration locations. Measured pavement thickness is shown on the exploration logs, and ranged from 1.5 to 2 inches. Fill Existing fill was encountered in one of our exploration borings (EB-7) to a depth of approximately 7 feet below the existing ground surface. The existing fill was observed to be November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG4b-KE100287A2-Projects1201002871KE1WP Page 3 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washin:ton Project and Site Conditions loose, and appeared to consist primarily of materials derived on-site and moved or disturbed during earlier site work. It is worth noting that historical site plans depict houses that previously existed in the vicinity of EB-7. It seems likely that the existing fill will extend along the north side of the site in the vicinity of the houses that were demolished. The houses do not appear on the oldest, readily available aerial photograph taken in 1990, and must have been demolished prior to then. The existing fill is loose and will require removal or other remedial preparation below planned building areas and remedial preparation below planned paving. Lodgement Till Each of the exploration borings except EB-7 encountered medium dense to very dense silty sand with gravel, interpreted as Vashon lodgement till. The lodgement till observed in our explorations was relatively more oxidized, and less dense than is typical for lodgement till sediments. These variations are likely related to the contact with the underlying advance outwash sediments. From an engineering standpoint, the lodgement till observed in our exploration borings can be expected to perform in a manner similar to typical lodgement till sediments. Lodgement till was deposited at the base of an active continental glacier and was compacted by the weight of the overlying glacial ice. Lodgement till is suitable for structural support when properly prepared. Excavated lodgement till material is suitable for use in structural fill applications if suitable moisture conditions are achieved and if specifically allowed by project , plans and specifications, which will require drying during favorable dry weather. At the time of exploration, we estimate that most of the lodgement till soils that we observed were at or above optimum moisture content for compaction purposes, and therefore, will require drying wr during favorable weather prior to compaction in structural fill applications. Advance Outwash .,,, Each of the exploration borings encountered dense to very dense granular sediments, typically below a lodgement till cap, that were interpreted to represent advance outwash sediments. Advance outwash was deposited at the base of an advancing glacier, and was subsequently compacted by the weight of the overlying glacial ice. Advance outwash is suitable for support of shallow foundations and paving with proper preparation. Excavated advance outwash sediments are expected to be suitable for reuse in structural fill applications if specifically allowed by project plans and specifications, and are expected to be moisture-sensitive, though somewhat less moisture-sensitive than lodgment till sediments. It should be noted that due to the depth below existing grade where advance outwash sediments were observed, it is unlikely that they will provide direct foundation support for a substantial part of the project. It is also November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. OW BWG/tb-KE100287R2-Projects1201002871KEIWP Page 4 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Pro'ect and Site Conditions 1 unlikely that excavated advance outwash sediments will be available for reuse in structural fill applications in significant quantity. Published Geologic Map We reviewed a published geologic map of the area (Geologic Map of King County, Washington, by Derek B. Booth, Kathy A, Troost, and Aaron P. Wisher, 2006). The referenced map indicates that the site is expected to be underlain by lodgement till, with recessional outwash mapped to the west, and advance outwash mapped to the east along the May Creek drainage and its tributaries. 4.2 Hydrology We did not enco unter substantial ground water in our explorations at the time of drilling. Isolated perched seepage zones were observed in some locations and are noted on the subsurface exploration logs in the Appendix. We constructed a well in exploration boring EB-1. Establishing a known unsaturated thickness of advance outwash sediments can be valuable in infiltration system design, and data from the well in EB-I are expected to provide such evidence. Ground water is expected to occur seasonally at this site "perched" above the underlying lodgement'till and advance outwash sediments, and possibly above existing fills. Perched ground water occurs when vertical infiltration is impeded by less-permeable soil layers, resulting in horizontal.flow. The quantity and duration of perched ground water flow from an excavation will vary, depending on season, soil gradation, and adjacent topography. Ground water conditions should be expected to vary in response to changes in precipitation, on- and off-site land usage, and other factors. 4.3 Laboratory Testing As a part of our investigation of the infiltration g potential of the site soils, we completed three laboratory grain size analyses. Copies of the grain size analyses reports are included in the Appendix. .■ 4.4 Infiltration Potential The site is underlain by lodgement till, which is in turn underlain by advance outwash sediments. Lodgement till is silty and dense, and is not suitable for use as a storm water infiltration receptor. Advance outwash is suitable for use as an infiltration receptor under some circumstances. At this site, the depth below the existing ground surface where advance November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. "'r BWGIIb-KEI00287A2-Projecrs 2010o2871KE1WP Page 5 rr Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Project and Site Conditions outwash sediments were observed in our exploration borings ranged from approximately 8 to 14 feet. The single deep exploration boring completed for this study, EB-I, encountered advance outwash sediments to the full depth explored of 61.5 feet. We installed a well in EB-i, and did not observe water in the well at the time of drilling or on the following day. We will continue to sound the well for water periodically through the winter of 2010 - 2011. The advance outwash sediments we observed typically consisted of sand with relatively small amounts of silt and gravel, and with some gradational stratification that is typical of advance outwash sediments. In our opinion, the advance outwash we observed in our initial explorations is well suited to storm water infiltration using deeper infiltration strategies, such as infiltration trenches, rock-filled "pit drains", or UIC wells. Use of any of these infiltration methods in a final design should be based on an infiltration study that is specific to the infiltration system design and location. We are available to work with the project civil rrr engineer to help develop a preliminary storm water management plan, and to formulate an infiltration study that is consistent with the preliminary plan. OM • November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/hb-KE/O0287A2-Projecls120l002871KE1WP Page 6 rr Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Geologic Hazards and Mitigations 1111 II. GEOLOGIC HAZARDS AND MITIGATIONS The following discussion of potential geologic hazards is based on the geologic, slope, and ground and surface water conditions, as observed and discussed herein. The discussion will be limited to slope stability, seismic, and erosion issues. 5.0 SLOPE HAZARDS AND MITIGATIONS iis In our opinion, no slopes on or adjacent to the site meet applicable definitions for management as critical areas in accordance with Renton Municipal Code Section 4-3-050. No detailed slope stability analysis was completed for this study, and none is warranted, in our opinion. 6.0 SEISMIC HAZARDS AND MITIGATIONS The site does not contain areas that meet City of Renton definitions for high seismic hazard areas. The following discussion is a more general assessment of seismic hazards that is intended to be useful to the District in terms of understanding seismic issues, and to the M. structural engineer for final structural design. Earthquakes occur regularly in the Puget Lowland. The majority of these events are small and are usually not felt by people. However, large earthquakes do occur, as evidenced by the 1949, 7.2-magnitude event; the 2001, 6.8-magnitude event; and the 1965, 6.5-magnitude event. The 1949 earthquake appears to have been the largest in this region during recorded history and was centered in the Olympia area. Evaluation of earthquake return rates indicates that an earthquake of the magnitude between 5.5 and 6.0 is likely within a given 20-year period. Generally, there are four types of potential geologic hazards associated with large seismic events: 1) surficial ground rupture, 2) seismically induced landslides, 3) liquefaction, and 4) ground motion. The potential for each of these hazards to adversely impact the proposed project is discussed below. Wr 6.1 Surficial Ground Rupture Generally, the largest earthquakes that have occurred in the Puget Sound area are sub-crustal events with epicenters ranging from 50 to 70 kilometers in depth. Earthquakes that are err generated at such depths usually do not result in fault rupture at the ground surface. Current November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. rn BWCRb-KE100387A2-Projecrs1201002871KEIWP Page 7 rr 1111 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Geologic Hazards and Mitigations research indicates that surficial ground rupture is possible in areas close to the Seattle Fault Zone. Although our current understanding of this fault zone is limited and is an active area of research, the site lies south of the currently recognized limits of the Seattle Fault Zone. Therefore, based on current information, the risk of damage to planned improvements as a result of surface rupture due to faulting is low, in our opinion. 6.2 Seismically Induced Landslides It is our opinion that the potential risk of damage to the proposed development by seismically ,,, induced slope failures is low due to the lack of significant slopes on and adjacent to the site. 6.3 Liquefaction Liquefaction is a process through which unconsolidated soil loses strength as a result of vibrations, such as those which occur during a seismic event. During normal conditions, the weight of the soil is supported by both grain-to-grain contacts and by the fluid pressure within the pore spaces of the soil below the water table. Extreme vibratory shaking can disrupt the grain-to-grain contact, increase the pore pressure, and result in a temporary decrease in soil shear strength. The soil is said to be liquefied when nearly all of the weight of the soil is supported by pore pressure alone. Liquefaction can result in deformation of the sediment and settlement of overlying structures. Areas most susceptible to liquefaction include those areas underlain by non-cohesive silt and sand with low relative densities, accompanied by a shallow water table. The subsurface conditions encountered at the site pose little risk of liquefaction due to relatively high density of the lodgement till and advance outwash, high silt content of the lodgement till, and lack of significant ground water observed in our explorations. No detailed liquefaction analysis was completed as part of this final study, and none is warranted, in our opinion. rri 6.4 Ground Motion �1r Structural design of buildings should follow 2009 International Building Code (IBC) standards using Site Class "C" in accordance with Table 1613.5.2, The 2009 IBC mapped spectral accelerations for short period (Ss) and 1-second period (Si) spectral acceleration values were determined by the latitude and longitude of the project sites using the United States Geological Survey (USGS) software utility Seismic Hazard Curves and Uniform Response Spectra. The USGS software interpolated ground motions at the project site as follows for periods of 0.2 and 1.0 seconds, respectively, with a 2 percent chance of exceedence in 50 years: Ss = 1.434, NIS November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/rh-KE100287A2-Projectst201002871KE141WP Page 8 rn Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Geologic Hazards and Mitigations Si= 0.490. Based on 2009 IBC tables 1613.5.3(1) and (2), an Fa value of 1.0 and an Fy value of 1.31 should be used. rrr 7.0 EROSION HAZARDS AND MITIGATIONS The site contains soils that meet City of Renton definitions for Erosion Hazard Areas. The following discussion addresses Washington State Department of Ecology erosion control regulations that will be applicable to the project. The State requirements are relatively new and are extensive. We anticipate that if the project complies with State requirements, it will also be acceptable with respect to City of Renton requirements. err As of October 1, 2006, the Washington State Department of Ecology (Ecology) Construction Storm Water General Permit (also known as the National Pollutant Discharge Elimination System [NPDES] permit) requires weekly Temporary Erosion and Sedimentation Control (TESC) inspections and turbidity monitoring for all sites 1 or more acres in size that discharge storm water to surface waters of the state. Because we anticipate that the proposed project will + require disturbance of more than one acre, we anticipate that these inspection and reporting requirements will be triggered. The following recommendations are related to general erosion potential and mitigation. The erosion potential of the site soils is high. The most effective erosion control measure is the maintenance of adequate ground cover. Maintaining cover measures atop disturbed ground provides the greatest reduction to the potential generation of turbid runoff and sediment transport. During the local wet season (October ls` through March 31S`), exposed soil should not remain uncovered for more than 2 days unless it is actively being worked. Ground-cover measures can include erosion control matting, plastic sheeting, straw mulch, crushed rock or recycled concrete, or mature hydroseed. me Some fine-grained surface soils are the result of natural weathering processes that have broken down parent materials into their mineral components. These mineral components can have an inherent electrical charge. Electrically charged mineral fines will attract oppositely charged particles and can combine (flocculate) to form larger particles that will settle out of suspension. The sediments produced during the recent glaciation of Puget Sound are, however, most commonly the suspended soils that are carried by site storm water. The fine-grained fraction of the glacially derived soil is referred to as "rock flour," which is primarily a silt-sized particle with no electrical charge. These particles, once suspended in water, may have settling times in periods of months. • rrr November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. mu DWG/tb-KEi00287A2-Projecisi201002874KEIWP Page 9 rr Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center _ Engineering, and Infiltration Feasibility Report ma • Renton, Washington Geologic Hazards and Mitigations Therefore, the flow length within a temporary sediment control trap or pond has virtually no effect on the water quality of the discharge, since it will not settle out of suspension in the time it takes to flow from one end of the pond to the other. Reduction of turbidity from a construction site is almost entirely a function of cover measures and flow control. Temporary "U sediment traps and ponds are necessary to control the release rate of the runoff and to provide a catchment for sand-sized and larger soil particles, but are very ineffective at reducing the turbidity of the runoff. To mitigate the erosion hazards and potential for off-site sediment transport, we recommend the following: 1. .The winter performance of a site is dependent on a well-conceived plan for control of site erosion and storm water runoff. It is easier to keep the soil on the ground than to remove it from storm water. The owner and the design team should include adequate ground-cover measures, access roads, and staging areas in the project bid to give the selected contractor a workable site. The selected contractor needs to be prepared to implement and maintain the required measures to reduce the amount of exposed ground. A site maintenance plan should be in place in the event storm water turbidity measurements are greater than the Ecology standards. 2. All TESC measures for a given area, to be graded or otherwise worked, should be installed prior to any activity within that area. The recommended sequence of construction within a given area would be to install sediment traps and/or ponds and establish perimeter flow control prior to starting mass grading. 3. During the wetter months of the year, or when large storm events are predicted during the summer months, each work area should be stabilized so that if showers occur, the work area can receive the rainfall without excessive erosion or sediment transport. The required measures for an area to be "buttoned-up" will depend on the time of year and err the duration the area will be left un-worked. During the winter months, areas that are to be left un-worked for more than 2 days should be mulched or covered with plastic. During the summer months, stabilization will usually consist of seal-rolling the �11 subgrade. Such measures will aid in the contractor's ability to get back into a work area after a storm event. The stabilization process also includes establishing temporary storm water conveyance channels through work areas to route runoff to the approved treatment facilities. November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWC/Ib—KE100287A2-Projects4201002871KE1WP Page 10 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Geologic Hazards and Mitigations 4. All disturbed areas should be revegetated as soon as possible. If it is outside of the growing season, the disturbed areas should be covered with mulch, as recommended in the erosion control plan. Straw mulch provides the most cost-effective cover measure and can be made wind-resistant with the application of a tackifier after it is placed. 5. Surface runoff and discharge should be controlled during and following development. Uncontrolled discharge may promote erosion and sediment transport. Under no circumstances should concentrated discharges be allowed to flow over significant slopes. 6. Soils that are to be reused around the site should be stored in such a manner as to reduce erosion from the stockpile. Protective measures may include, but are not limited to, covering with plastic sheeting, the use of low stockpiles in flat areas, or the use of straw bales/silt fences around pile perimeters. During the period between 1 October Is` and March 31S`, these measures are required. 7. On-site erosion control inspections and turbidity monitoring should be performed in accordance with Ecology requirements. Weekly and monthly reporting to Ecology should be performed on a regularly scheduled basis. TESC monitoring should be part 1 of the weekly construction team meetings. Temporary and permanent erosion control and drainage measures should be adjusted and maintained, as necessary, at the time of construction. It is our opinion that with the proper implementation of the TESC plans and by field-adjusting appropriate mitigation elements (BMPs) during construction, as recommended by the erosion control inspector, the potential adverse impacts from erosion hazards on the project may be mitigated. I I November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/ib-KE100287A2-Projec, 2OJ001871KEIWP Page 11 1 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations III. PRELIMINARY DESIGN RECOMMENDATIONS 8.0 INTRODUCTION Some portions of the site are underlain by a layer of surficial existing fill that is loose and variable. Existing fill is not suitable for support of new foundations and warrants remedial preparation where it occurs below paving and similar lightly loaded structures. Structural fill or native sediments are suitable for support of shallow foundations, floor slabs, and paving with proper preparation. 9.0 SITE PREPARATION Existing foundations, floor slabs, paving, buried utilities, vegetation, topsoil, and any other is deleterious materials should be removed where they are located below planned construction areas. All disturbed soils resulting from demolition activities should be removed to expose underlying undisturbed native sediments and replaced with structural fill, as needed. All MS excavations below final grade made for demolition activities should be backfilled, as needed, with structural fill. Erosion and surface water control should be established around the so clearing limits to satisfy local requirements. Once demolition has been completed, existing fill should be addressed. The observed fill depth in EB-7 was approximately 7 feet below existing grade. We anticipate that existing fill will also be present below and around the existing building, and associated with buried utilities. We recommend that existing fill be removed from below areas of planned foundations to expose underlying undisturbed native sediments, followed by restoration of the planned foundation grade with structural fill. Removal of existing fill should extend laterally beyond the building footprint by a distance equal to the depth of overexcavation. For example, if existing fill is removed to a depth of 2 feet below a planned footing area, the excavation should also extend laterally 2 feet beyond the footing limits. Care should be taken not to disturb support soils of existing foundations of structures that will remain. Support soils should be considered those soils within a prism projected downward and outward from existing footings at inclinations of 1H:IV (Horizontal:Vertical). Where existing fill is removed and replaced with structural fill, conventional shallow foundations may be used for building support. November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/tb-KE100287A2-Projectsl20 1 0028 71KEIWP Page 12 I 7 Subsurface Exploration, Preliminary Geotechnical 7 Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations T9.1 Site Drainage and Surface Water Control The site should be graded to prevent water from ponding in construction areas and/or flowing into excavations. Exposed grades should be crowned, sloped, and smooth drum-rolled at the end of each day to facilitate drainage. Accumulated water must be removed from subgrades and work areas immediately prior to performing further work in the area. Equipment access may be limited, and the amount of soil rendered unfit for use as structural fill may be greatly increased, if drainage efforts are not accomplished in a timely sequence. If an effective drainage system is not utilized, project delays and increased costs could be incurred due to the greater quantities of wet and unsuitable fill, or poor access and unstable conditions. 7 Our exploration borings. did not encounter substantial free ground water at the time of exploration. We anticipate that perched ground water could be encountered in excavations completed during construction. We do not anticipate the need for extensive dewatering in Iadvance of excavations. The contractor should be prepared to intercept any ground water seepage entering the excavations and route it to a suitable discharge location. rFinal exterior grades should promote free and positive drainage away from the buildings at all times. Water must not be allowed to pond or to collect adjacent to foundations or within the r immediate building area. We recommend that a gradient of at least 3 percent for a minimum distance of 10 feet from the building perimeters be provided, except in paved locations. In paved locations, a minimum gradient of 1 percent should be provided, unless provisions are rincluded for collection and disposal of surface water adjacent to the structures. 9.2 Subgrade Protection I To the extent that it is possible, existingpavement should be used for construction staging g g areas. If building construction will proceed during the winter, we recommend the use of a rworking surface of sand and gravel, crushed rock, or quarry spalls to protect exposed soils, I particularly in areas supporting concentrated equipment traffic. In winter construction staging areas and areas that will be subjected to repeated heavy loads, such as those that occur during Iconstruction of masonry walls, a minimum thickness of 12 inches of quarry spalls or 18 inches of pit run sand and gravel is recommended. If subgrade conditions are soft and silty, a geotextile separation fabric, such as Mirafi 5O0x or approved equivalent, should be used 7 between the subgrade and the new fill.. For building pads where floor slabs and foundation construction will be completed in the winter, a similar working surface should be used, composed of at least 6 inches of pit run sand and gravel or crushed rock. Construction of working surfaces from advancing fill pads could be used to avoid directly exposing the subgrade soils to vehicular traffic. I A I November 18, 2010 ASSOCIATED EARTH SCIENCES,INC. DWG/0—KB100187A2-Projecfs120100287110E1 WP Page 13 r Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and infiltration Feasibility Report - g� $� Renton, Washington Preliminary Design Recommendations Foundation subgrades may require protection from foot and equipment traffic and ponding of runoff during wet weather conditions. Typically, compacted crushed rock or a lean-mix concrete mat placed over a properly prepared subgrade provides adequate subgrade protection. Foundation concrete should be placed and excavations backfilled as soon as possible to protect the bearing surface. 9.3 Proof-Rolling and Subgrade Compaction Following the recommended demolition, site stripping, and planned excavation, the stripped subgrade within the building areas should be proof-rolled with heavy, rubber-tired construction equipment, such as a fully loaded tandem-axle dump truck. Proof-rolling should be performed prior to structural fill placement or foundation excavation. The proof-roll should be monitored by the geotechnical engineer so that any soft or yielding subgrade soils can be identified. Any soft/loose, yielding soils should be removed to a stable subgrade. The subgrade should then be scarified, adjusted in moisture content, and recompacted to the required density. Proof-rolling should only be attempted if soil moisture contents are at or near optimum moisture content. Proof-rolling of wet subgrades.could result in further degradation. Low areas and excavations NM may then be raised to the planned finished grade with compacted structural fill. Subgrade preparation and selection, placement, and compaction of structural fill should be performed under engineering-controlled conditions in accordance with the project specifications. ,r„ 9.4 Overexcavation/Stabilization Construction during extended wet weather periods could create the need to overexcavate exposed soils if they become disturbed and cannot be recompacted due to elevated moisture content and/or weather conditions. Even during dry weather periods, soft/wet soils, which may need to be overexcavated, may be encountered in some portions of the site. If overexcavation is necessary, it should be confirmed through continuous observation and testing by Associated Earth Sciences, Inc. (AESI). Soils that have become unstable may require remedial measures in the form of one or more of the following: 1. Drying and recompaction. Selective drying may be accomplished by scarifying or windrowing surficial material during extended periods of dry and warm weather. 2. Removal of affected soils to expose a suitable bearing subgrade and replacement with compacted structural fill. 3. Mechanical stabilization with a coarse-crushed aggregate compacted into the subgrade, possibly in conjunction with a geotextile. 4. Soil/cement admixture stabilization. November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/eb-KE100287A2-Projeas420100287IKEIWP Page 14 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations 9.5 Wet Weather Conditions If construction proceeds during an extended wet-weather construction period and the moisture- sensitive site soils become wet, they will become unstable. Therefore, the bids for site grading operations should be based upon the time of year that construction will proceed. It is expected that in wet conditions additional soils may need to be removed and/or other stabilization methods used, such as a coarse crushed-rock working mat, to develop a stable condition if silty subgrade soils are disturbed in the presence of excess moisture. The severity of construction disturbance will be dependent, in part, on the precautions that are taken by the contractor to protect the moisture- and disturbance-sensitive site soils. If overexcavation is necessary, it should be confirmed through continuous observation and testing by a representative of our firm. 9.6 Temporary and Permanent Cut Slopes TIn our opinion, stable construction slopes should be the responsibility of the contractor and should be determined during construction. For estimating purposes, however, we anticipate that temporary, unsupported cut slopes in the existing fill can be made at a maximum slope of 1.5H:1V or flatter. Temporary slopes in unsaturated advance outwash sediments and lodgement till may be planned at 1H:1V. As is typical with earthwork operations, some sloughing and raveling may occur, and cut slopes may have to be adjusted in the field. If ground water seepage is encountered in cut slopes, or if surface water is not routed away from temporary cut slope faces, flatter slopes will be required. In addition, WISHA/OSHA 1 regulations should be followed at all times. Permanent cut and structural fill slopes that are not intended to be exposed to surface water should be designed at inclinations of 2H:1V or flatter. All permanent cut or fill slopes should be compacted to at least 95 percent of the modified 1 Proctor maximum dry density, as determined by ASTM:D 1557, and the slopes should be protected from erosion by sheet plastic until vegetation cover can be established during favorable weather. 1 9.7 Frozen Subgrades 1 • If earthwork takes place during freezing conditions, all exposed subgrades should be allowed to thaw and then be recompacted prior to placing subsequent lifts of structural fill or foundation components. Alternatively, the frozen material could be stripped from the subgrade to reveal unfrozen soil prior to placing subsequent lifts of fill or foundation components. The frozen soil should not be reused as structural fill until allowed to thaw and adjusted to the proper moisture content, which may not be possible during winter months. I 1 November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/fib-KI I00287A2-Prajeclsl201002871KE1WP Page 15 1 Subsurface Exploration, Preliminary Geotechnical ilik Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations 10.0 STRUCTURAL FILL All references to structural fill in this report refer to subgrade preparation, fill type and placement, and compaction of materials, as discussed in this section. If a percentage of compaction is specified under another section of this report, the value given in that section should be used. After stripping, planned excavation, and any required overexcavation have been performed to the satisfaction of the geotechnical engineer, the upper 12 inches of exposed ground in areas to receive fill should be recompacted to 90 percent of the modified Proctor maximum density using ASTM:D 1557 as the standard. If the subgrade contains silty soils and too much moisture, adequate recompaction may be difficult or impossible to obtain and should probably not be attempted. In lieu of recompaction, the area to receive fill should be blanketed with washed rock or quarry spalls to act as a capillary break between the new fill and the wet subgrade. Where the exposed ground remains soft and further overexcavation is impractical, placement of an engineering stabilization fabric may be necessary to prevent contamination of the free-draining layer by silt migration from below. After recompaction of the exposed ground is tested and approved, or a free-draining rock course is laid, structural fill may be placed to attain desired grades. Structural fill is defined as non-organic soil, acceptable to the geotechnical engineer, placed in maximum 8-inch loose lifts, with each lift being compacted to 95 percent of the modified Proctor maximum density using ASTM:D 1557 as the standard. Use of soils from the site in structural fill applications is acceptable if the material meets the project specifications for the intended use, and if specifically allowed by project specifications. In the case of roadway and utility trench filling, the backfill should be placed and compacted in accordance with current City of Renton codes - and standards. The top of the compacted fill should extend horizontally outward a minimum distance of 3 feet beyond the locations of the roadway edges before sloping down at an angle of 2H:1 V. ` The contractor should note that any proposed fill soils must be evaluated by AESI prior to their use in fills. This would require that we have a sample of the material 72 hours in advance to perform a Proctor test and determine its field compaction standard. Soils in which the amount of fine-grained material (smaller than the No. 200 sieve) is greater than approximately 5 percent (measured on the minus No. 4 sieve size) should be considered moisture-sensitive. Use of moisture-sensitive soil in structural fills should be limited to favorable dry weather conditions, and is only permitted if specifically allowed by project plans and specifications. The native and existing fill soils present on-site contained significant amounts of silt and are considered highly moisture-sensitive. In addition, construction equipment traversing the site when the soils are wet can cause considerable disturbance. If fill is placed during wet weather November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. rr�► BWG/tb-KE100287A2-ProJeas420!OO2871KEIWP Page 16 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations 111 or if proper compaction cannot be obtained, a select import material consisting of a clean, free- draining gravel and/or sand should be used. Free-draining fill consists of non-organic soil with the amount of fine-grained material limited to 5 percent by weight when measured on the minus No. 4 sieve fraction with at least 25 percent retained on the No. 4 sieve. ago A representative from our firm should inspect the stripped subgrade and be present during placement of structural fill to observe the work and perform a representative number of in-place density tests. In this way, the adequacy of the earthwork may be evaluated as filling progresses, and any problem areas may be corrected at that time. It is important to understand that taking random compaction tests on a part-time basis will not assure uniformity or acceptable performance of a fill. As such, we are available to aid the District in developing a "" suitable monitoring and testing program. 11.0 FOUNDATIONS Spread footings may be used for building support when founded directly on undisturbed NI lodgement till, advance outwash, or on structural fill placed above suitable native deposits, as previously discussed. We recommend that an allowable bearing pressure of 3,000 pounds per square foot (pst) be used for design purposes, including both dead and live loads. An increase of one-third may be used for short-term wind or seismic loading. Higher foundation soil bearing pressures are possible for foundations supported entirely on undisturbed lodgement till and advance outwash, however, we do not expect that higher bearing pressures will be needed. If higher foundation soil bearing pressures are needed, we should be allowed to offer situation- specific recommendations. rrr Perimeter footings should be buried at least 18 inches into the surrounding soil for frost protection. However, all footings must penetrate to the prescribed bearing stratum, and no footing should be founded in or above organic or loose soils. All footings should have a minimum width of 18 inches. It should be noted that the area bound by lines extending downward at 1H:1V from any footing must not intersect another footing or intersect a filled area that has not been compacted to at least 95 percent of ASTM:D 1557. In addition, a 1.5H:1V line extending down from any footing must not daylight because sloughing or raveling may eventually undermine the footing. Thus, footings should not be placed near the edge of steps or cuts in the bearing soils. Anticipated settlement of footings founded as described above should be an the order of 3/4 inch or less. However, disturbed soil not removed from footing excavations prior to footing •r+ placement could result in increased settlements. All footing areas should be inspected by AESI November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. 13WG/tb—KE100287A2-Projectst201002871KE4WP Page 17 rr Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations or prior to placing concrete to verify that the design bearing capacity of the soils has been attained and that construction conforms to the recommendations contained in this report. Such inspections may be required by the governing municipality. Perimeter footing drains should be provided, as discussed under the "Drainage Considerations" section of this report. 11.1 Drainage Considerations rrr Foundations should be provided with foundation drains. Drains should consist of rigid, perforated, polyvinyl chloride (PVC) pipe surrounded by washed pea gravel. The drains should be constructed with sufficient gradient to allow gravity discharge away from the proposed buildings. Roof and surface runoff should not discharge into the footing drain system, but should be handled by a separate, rigid, tightline drain. In planning, exterior grades adjacent to walls should be sloped downward away from the proposed structures to achieve surface drainage. 12.0 FLOOR SUPPORT Floor slabs can be supported on suitable native sediments, or on structural fill placed above suitable native sediments. Floor slabs should be cast atop a minimum of 4 inches of clean, washed, crushed rock or pea gravel to act as a capillary break. Areas of subgrade that are disturbed (loosened) during construction should be compacted to a non-yielding condition prior to placement of capillary break material. Floor slabs should also be protected from dampness by an impervious moisture barrier at least 10 mils thick. The moisture barrier should be placed between the capillary break material and the concrete slab. 13.0 FOUNDATION WALLS All backfill behind foundation walls or around foundation units should be placed as per our recommendations for structural fill and as described in this section of the report. Horizontally backfilled walls, which are free to yield laterally at least 0.1 percent of their height,may be designed using an equivalent fluid equal to 35 pounds per cubic foot (pet). Fully restrained, horizontally backfilled, rigid walls that cannot yield should be designed for an equivalent fluid of 50 pcf. Walls with sloping backfill up to a maximum gradient of 2H:1V should be designed using an equivalent fluid of 55 pcf for yielding conditions or 75 pcf for fully restrained conditions. If parking areas are adjacent to walls, a surcharge equivalent to 2 feet of soil should be added to the wall height in determining lateral design forces. November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. JJWC/lb-KE100287A2-Projeas1201002871KE1WP Page 18 Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Preliminary Design Recommendations As required by the 2009 IBC, retaining wall design should include a seismic surcharge pressure in addition to the equivalent fluid pressures presented above. Considering the site soils and the recommended wall backfill materials, we recommend a seismic surcharge pressure of 5H and 1OH psf, where H is the wall height in feet, for the "active" and "at-rest" loading conditions, respectively. The seismic surcharge should be modeled as a rectangular distribution with the resultant applied at the midpoint of the walls. The lateral pressures presented above are based on the conditions of a uniform backfill consisting of excavated on-site soils, or imported structural fill compacted to 90 percent of ASTM:D 1557. A higher degree of compaction is not recommended, as this will increase the pressure acting on the walls. A lower compaction may result in settlement of the slab-on-grade or other structures supported above the walls. Thus, the compaction level is critical and must be tested by our firm during placement. Surcharges from adjacent footings or heavy construction equipment must be added to the above values. Perimeter footing drains should be provided for all retaining walls, as discussed under the "Drainage Considerations" section of this report. It is imperative that proper drainage be provided so that hydrostatic pressures do not develop against the walls. This would involve installation of a minimum, 1-foot-wide blanket drain to ,,, within 1 foot of finish grade for the full wall height using imported, washed gravel against the walls. 13.1 Passive Resistance and Friction Factors Lateral loads can be resisted by friction between the foundation and the natural glacial soils or supporting structural fill soils, and by passive earth pressure acting on the buried portions of the foundations. The foundations must be backfilled with structural fill and compacted to at least 95 percent of the maximum dry density to achieve the passive resistance provided below. We recommend the following allowable design parameters: • Passive equivalent fluid = 250 pcf • Coefficient of friction = 0.30 14.0 PAVEMENT RECOMMENDATIONS Pavement areas should be prepared in accordance with the "Site Preparation" section of this report. If the stripped native soil or existing fill pavement subgrade can be compacted to 95 percent of ASTM:D 1557 and is firm and unyielding, no additional overexcavation is aw November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. BWG/!b-KE10028742-Projects1201002871KE1 WP Page 19 irr Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report mo Renton, Washington Preliminary Design Recommendations required. Soft or yielding areas should be overexcavated to provide a suitable subgrade and backfilled with structural fill. imp The pavement sections included in this report section are for driveway and parking areas on- site, and are not applicable to right-of-way improvements. At this time, we are not aware of any planned right-of-way improvements, however, if any new paving of public streets is 1011 required, we should be allowed to offer situation-specific recommendations. The exposed ground should be recompacted to 95 percent of ASTM:D 1557. If required, irrn structural fill may then be placed to achieve desired subbase grades. Upon completion of the recompaction and structural fill, a pavement section consisting of 21/2 inches of asphaltic concrete pavement (ACP) underlain by 4 inches of PA-inch crushed surfacing base course is the recommended minimum in areas of planned passenger car driving and parking. In heavy traffic areas, a minimum pavement section consisting of 3 inches of ACP underlain by 2 inches of 5/s-inch crushed surfacing top course and 4 inches of 1%-inch crushed surfacing base course is recommended. The crushed rock courses must be compacted to 95 percent of the maximum density, as determined by ASTM:D 1557. All paving materials should meet gradation criteria contained in the current Washington State Department of Transportation (WSDOT) Standard Specifications. Depending on construction staging and desired performance, the crushed base course material may be substituted with asphalt treated base (ATB) beneath the final asphalt surfacing. The substitution of ATB should be as follows: 4 inches of crushed rock can be substituted with 3 inches of ATB, and 6 inches of crushed rock may be substituted with 4 inches of ATB. ATB should be placed over a native or structural fill subgrade compacted to a minimum of 95 percent relative density, and a 11/2- to 2-inch thickness of crushed rock to act as a working surface. . If ATB is used for construction access and staging areas, some rutting and disturbance of the ATB surface should be expected. The general contractor should remove affected areas and replace them with properly compacted ATB prior to final surfacing. 15.0 PROJECT DESIGN AND CONSTRUCTION MONITORING Our report is preliminary since project plans had not been developed at the time this report was written. We recommend that AESI perform a geotechnical review of the plans prior to final design completion. In this way, we can confirm that our earthwork and foundation recommendations have been properly interpreted and implemented in the design. r ib November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. via !!WG/tb-KE100287A2-Projects4201002871KE1WP Page 20 I Subsurface Exploration, Preliminary Geotechnical Proposed Early Childhood Center Engineering, and Infiltration Feasibility Report Renton, Washington Prelimina Design Recommendations We are also available to provide geotechnical engineering and monitoring services during construction. The integrity of the foundation system depends on proper site preparation and construction procedures. In addition, engineering decisions may have to be made in the field 7 in the event that variations in subsurface conditions become apparent. Construction monitoring services are not part of this current scope of work. If these services are desired, please let us know, and we will prepare a cost proposal. We have enjoyed working with you on this study and are confident that these recommendations will aid in the successful completion of your project. If you should have any questions or ` require further assistance, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Q`C cft WAS RG� o let 0 23580 • 6GISTE4.�6> 1 „ , Bruce W. Guenzler, L.E.G. Kurt D. Merriman, P.E. 1 Project Geologist Principal Engineer Attachments: Figure 1: Vicinity Map Figure 2: Site and Exploration Plan Appendix: Exploration Logs Laboratory Testing Results I I November 18, 2010 ASSOCIATED EARTH SCIENCES, INC. 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EARLY CHILDHOOD CENTER DA • :RENTON,-WASHINGTON KE10(1207A II _ 11 • WO - - f 4 - !3 'y. d{' - - d' ,— ,,,,co ad Z 2 am ry Mil t• t O' i t ,,' am egi ' }`1c It 11 i t' x x `a. -- • } 4b 'f1 q 1 mil r2 re til Ill Z H o Z 0 sicCO 0 ',.— ' ''''-' _t'?...;;;2:2,,AT.:777-,:iti;i: : 7 we Ai y,. f ` t, ;` t ~y , I '' t F t , ;tab t� , '{. � ;1t { ��3 I. i a I i4;_t V : a ''z ' s8:1 i i F` � iia' a"'� y c C � ~( } s"FF ',', ± '` 'L ,t'� t`t - wry__ J� S " t L3 '3, .€r d'. - ,,_•,,,e,,,,,i-,,,,,,, ,,,•,,,-.,• %--,.,. •, 7 ',, ''''`' ""-14-1;:::.-0 ''.' i 1• \,, •,.„.y, ., c t.-r_,..Z4*. aa t T �9 I ' t i a ym�g 'yh , _ At:i, �E: a`t - , t !- 'r `b a t �. , e FBI �, 1 5s i. ® a ti l w 7 k-4.,....i,,..-c„,.,c.,,,;!*:-2,---' ' : — . W., 'r,j, ,, ''''''4-F` - _-'':''-, ' -'1' re' 0`,,pL'i,: '., ,,,,,,;-41t-.., k;=,•".71-, ID (i) Z.`-'44, 0 "4 ',...- , ,` -..i 1 A i .4-::.,_----.,. - ,,,,:- ' --;;;-.,-, ....ct '-;,,.-_--, ,,. ,--,;- ,.,„., -... cotu. i 7 , . ,., i ir . �,`. _ n t :� .if _-1 ! I . _;y i ''- ems * is ; { 4 t at im ''-il — g d ' €_'i i I. t ,„- 'rz _ - t �+e Q .rrE+ -i*t , .,,,,,,--,7':,,, . _ __- ,,,,,, _,,,,,,,..,,,,:_:_,,,,.._-,,,,,,-,---- k i,, • i u.,. F .�•3l7 ! .. 3 ' �` - T is Via'',; ... t�'a -. �r ip rlidx�pus eAS 197A0�,ie�ueo PoaRPIPlO Hig31BZOD� I r�r us rrr nw T T T APPENDIX r T r r T r r r r r r r I. wr a a a a rri a rr a a a a err a a a i 7 C .s , G,0 Well graded gravel and Terms Describing Relative Density and Consistency e � papa OW gravel with sand,little to Density SPTt2iblows/foot tz 0"(i no fines 7 v h a C3 c Coarse Very Loose 0 to 4 arm c, 0 .. Loose 4 to 10 c' i° cl,' .8 00000 Poorly-graded gravel Grained Soils 2 °i3 vu o Soo o GP and gravel with sand, Medium Dense 10 to 30 Test Symbols 0 o d' o°o°o little to no fines Dense 300 50 G =Grain Size 7 o d o°coo Very Dense >50 N o Z °c°o 0_ (2 M=Moisture Content d $ a 0 . 0 Consistency SPT iblows/foot A=Atterber Limits z Silty gravel and silty a c Very Soft 0 to 2 C =Chemical a w a fi„., GM gravel with sand Fine- Soft 2 to 4 DO=Dry Density T 3 o m !, Grained Soils Medium Stiff 4 to 8 K=Permeability '•g se ,` Stiff 8 to 15 N �' L�, Clayey gravel and Very Stiff 15 to 30 t "iorf GC clayey gravel with sand Hard >30 1 Iliin * Component Definitions c :; Well-graded sand and Descriptive Term Size Range and Sieve Number to 4. ......••.::, SW sand with gravel,little Boulders Larger than 12" o t° d : to no fines Cobbles 3"to 12" ' • Gravel 3"to Na.4(4.75 mm) N co a) °�: Poorly graded sand Coarse Gravel 3"to 3/4° v .itw .:• SP and sand with gravel, Fine Gravel 3/4"to No.4(4.75 mm) • r,: little to no fines Sand No.4(4.75 mm)to No.200(0.075 mm) o g z ' Coarse Sand No.4(4.75 mm)to No.10(2.00 mm) . v .;• Silty sand and Medium Sand No.10(2.00 mm)to No,90(0,425 mm) N ,-=. S :--: SM •silty sand with Fine Sand No.40(0.425 mm)to No.200(0.075 mm) 1 g a3 N o a• C .••.: ' gravel o Silt and Clay Smaller than No.200(0.075 mm) e 0Clayey sand and (3) 2 F sc clayey sand with ravel Estimated Percentage Moisture Content m / y y g Percentage by Dry-Absence of moisture, 1 Component Weight dusty,dry to the touch Silt,sandy silt,gravelly silt, Trace <5 Slightly Moist-Perceptible re o ML silt with sand or gravel Few 5 to 10 moisture Little 15 to 25 Moist-Damp but no visible ran w = With 0 to Non-primary coarse water m y X Clay of low to mediumconstituents: > 15%$ Very Moist-Water visible but oa; plasticity;silty,sandy,or -Fines content between not free draining CL gravelly clay,lean clay 5%and 15% Wet-Visible free water,usually icr)a .Y _ " from below water table a5 _ Organic clay or silt of low Symbols L • OL plasticity Blows/6".or ' Sampler portion of 6" `< I 2 Type surface grout ea t ° Elastic silt,clayey silt, silt Sampler Type zie MH with micaceous or Split-Spoon2.0 OD % ;s Description sentonite u, //,„ (4) seal r3 diatomaceous fine sand or Sampler 3A"OD Spilt-Spoon Sampler ,:. �, silt �� p p p :'Filter packvhlh eta o P (SPT 3.25"OD Spilt-Spoon Ring Sampler (4) -. cblank casing Clay of high plasticity, section sandy or gravelly clay fat Bulk sample " Q"-- a▪i c CH I3.0 OD Th'rn-Wail Tube Sampler r Screened casing I ..Gto Eclay with sand or gravel (including Shelby tube) with fdrorlter pack Grab Sample2 !, �, •.,-•• End cap G v 'I.W,� Organic clay or silt of (� Portion not recovered Ic i!;;i;% OH •medium to high (,i ;;;5,,� Percentage by dry weight (4i Depth of ground water 1 , ,,�, plasticity (2) (SPT)Standard Penetration Test '�N.. _ AID=At time of drilling (ASTM D-1586) �A�- Static water level date a.E. m Peat,muck and other (3) In General Accordance with (date) fr s pT highly organic soils Standard Practice for Description 01 Combined USCS symbols used for 1 and Identification of Soils(ASTM D-2488) fines between 5%and 15% —` i Classifications of soils in this report are based on visual field and/or laboratory observations,which Include density/consistency,moisture condition,grain size,and plasticity estimates and should not be construed to imply field or laboratory testing unless presented herein.Visual-manual and/or laboratory classification 1 o methods of ASTM D-2487 and D-2488 were used as an identification guide for the Unified Soil Classification System. ,. Associated Earth Sciences, Inc. 1 . i rci i i•--;;:,:j :-.12...! Li.'.='''' k --,',- C.44' EXPLORATION LOG KEY FIGURE Al g ir Construction LogGeologic & Monitoring Well III Associated Earth Sciences,Inc. � Project Number Wei umber Sheet `' 04 iVIA E _.. KE100287A EB-1 1 of 2 Project Name Early Childhood Center Location Renton.WA mis Elevation(Top of Well Casing) N/A Surface Elevation(ft) Water Level Elevation Date Start/Finish 11/11/1(1,11/11/1(1 Drilling/Equipment Boretec/Track Hole Diameter(In) 7 inches Hammer Weight/Drop 140#/30" au N U N Oto PI >, o 11. g' WELL CONSTRUCTION T En 0(I) DESCRIPTION - sFlush monument _Grass and topsoil. _ Concrete 2 to 0 feet . T Lodgement Till Band dug to 2 1/2 feet. >s 10 18 inches recovery. Dense,very moist,mottled,gray and brown, =` I 12 fine to coarse SAND,little silt,little fine gravel(SW-SM). No t8 stratification or structure. ] 5 Bentonite chips 47 to 2 feet 8 18 Inches recovery. Becomes medium dense,mottled brown. _ -1 12 Subtle gradational stratification. 18 to 1 A / - - Advance Outwash __. 10 >1 % 1 1/4-inch PVC blank to 20 18 Inches recovery. Very dense,very moist,brown,fine to coarse MO;'i : - surface -1 33 SAND,little to with silt,little fine gravel(SM). y, 30 ' i 15 20 18 inches recovery. Very dense,moist,brownish gray,fine SAND, 0 32 few silt. Subtle gradational stratification(SP). _ 38 II IN j20 .,' 35 18 inches recovery. Grades with trace fine gravel. 29 1 F` % Weak seepage zone(perched). 25 7 0 I 18 18 inches recovery. Very dense,moist to wet(varies),gray,fine to NO - - % 32 coarse SAND,few slit,interbedded with brown,fine SAND,with silt `' j 50 (SP with SM). Weak seepage above brown,fine sand. _g0 % f 28 18 Inches recovery. Very dense,moist,gray,fine to medium SAND, - -1 35 trace to few slit(SP). -"% 43 rni (j O lif. Ili is—35 28 As above. - 35 1 ' ; ' _ 28 Sampler Type(ST): iiii 1 m 2"OD Split Spoon Sampler(SPT) Q No Recovery M - Moisture Logged by: BWG d m 3"OD Split Spoon Sampler(D&M) E Ring Sample V- Water Level() Approved by: W lei ( rah Sample FA Shelby Tube Sample T. Water Level at time of drilling(ATD) rY I 7 Associated Earth Sciences,Inc.�r Geologic & Monitoring Well Construction Log Project Number Well Number Sheet b KE100287A EB-1 2 of 2 ill Project Name Early Childhood Center Location Renton, WA Elevation(Top of Well Casing) NI Surface Elevation(ft) Water Level Elevation Date Start/Finish 11/11/10,11/11.L1 D Drilling/Equipment BoretecJTrack Hole Diameter(in) 7 inches • 7 Hammer Weight/Drop 140#/30" s > 2o C] a; �. 7 g. WELL,CONSTRUCTION T cc 0 to DESCRIPTION %% - 34 18 inches recovery. Trace fine gravel concentrated in zones 1-inch 38 thick. I s 4 45 yi 7 _ -45 ,7 . j - 2s 18 inches recovery. Trace gravel becomes more evenly distributed. 35 -' i. 38 T .•.. Colorado#10-20 60 to 47 _ - • feet - 7 P4 18 Inches recovery. Grades without gravel. - 40 50". 1 1/flinch PVC screen - - .- i .. 0.020-inch slot 60 to 50 feet - 7 ,_ -55 7 1 P8 18 Inches recovery as above._ _::...:: �- .. 50 • _- • 7 - -60 2a 18 Inches recovery. Gradation as above. _ Well Tag#BBB 965 32 34 • Boring terminated at 61 1/2 feet on 11/11/10 se --65 - 7 . 7 _ , -70 - 7 . ,,,.___75 77 _ o CI. u' ""' m Sampler Type(ST): a m 2"OD Split Spoon Sampler(SPT) Q No Recovery M - Moisture Logged by: BWG m 3"OD Split Spoon Sampler(D&M) U Ring Sample -SZ Water Level() Approved by: or n0 Grab Sample VI Shelby Tube Sample 1 Water Level at time of drilling(ATD) IIII Exploration Log Associated Earth Sciences,Inc. _ _. Project Number Exploration Number Sheet OAt ' ti �f i 4 KE100287A EB-2 1 of 1 Project Name Early Childhood Center. -_ Ground Surface Elevation(ft) N/A rtr Location Renton,WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 11/11/10 11 ill/10 Hammer Weight/Drop 140#180" Hole Diameter(in) 7 inches - IS c u' 4 o › Blows/Foot .- a� roa +�- 3 L S E V. �Emo m rain `� DESCRIPTION U 10 20 30 40 O Grass and topsoil. - Lodgement Till - Hand dug to 2 feet. , Illi _ 18 inches recovery. Dense,moist,mottled,gray,fine to coarse SAND, 13 I S-1 with silt,little fine gravel(SM). No stratification. 17 A34 17 t — 5 I S-2 18 inches recovery. Gradation as above. 23 A49 27 IN — 10 I S-3 10 inches recovery. Becoming gray and less mottled. 36 illi 1 A501E" fo/E" _ __—— "" Advance Outwash --_- _-—- - -- 15 18 inches recovery. Dense,moist,brownish gray,fine SAND,little fine 13 I S4 gravel and silt(SM). Gradational stratification. 16 A33 - 20 NI - • 111111 — 20 18 inches recovery, Very dense,moist,gray,fine SAND,few slit(SP). No i8 S-5 stratification. 28 A66 I 30 Bottom of exploration boring at 211/2 feet NI — 25 11111 — 30 — Ili - ill o-- 35 0 (.1_ rU y ti E a O g^l Sampler Type(ST): ME o ii 2"OD Spilt Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG o m 3"OD Split Spoon Sampler(D&M) II Ring Sample SZ Water Level O Approved by: m Water Level at time of drilling(ATD) MI A Grab Sample � Shelby Tube Sample I. Water I 7 Associated Earth Sciences,Inc. Exploration Log _ r ' 114 Project Number Exploration Number Sheet ' ��� KE100287A EB 3 1 of 1 7 Project Name Early ChilSihood Center Renton,WA Ground Surface Elevation(ft) N/A Location Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 11/11/1(1 11/11/10 Hammer Weight/Drop 140#/30" Hole Diameter(in) 7 inrhr g7 -. _ UJ U 4 0 e ^Vi co e = S Q Q a-J Q Blows/Foot ` 7 d T ip Ocn �orom DESCRIPTION U 10 20 30 40 -\2 inches asphalt paving. _ ,r - Lodgement Tilt 1 . _ 18 inches recovery. Very dense,moist,mottled,gray,fine to coarse 24 S-1 SAND,little fine gravel(SM). No stratification. 36 A72 36 oil — 5 — 18 inches recovery. Gradation as above. Becoming brown. 17 S-2 27 A57 — 30 al rr — 10 S 3 18 inches recovery. Verydense,moist,gray,fine to medium SAND,few 14 fine gravel,trace slit(SP). No stratification. 26 A64 38 Ail - (Weak seepage zone) — 15 Very dense,very moist to wet,brown,fine SAND,with silt(SM). No 17 I S-4 stratification. 27 454 go 27 me - 20 Very dense,moist,gray,fine to medium SAND,trace slit and fine gravel 17 I S-5 _(SP). No stratification. 24 A51 ._._ 27 illi Bottom of exploration boring at 21 1/2 feet IN — 25 s — 30 do ii1M 0— 35 0 N 6 z a WI Sampler Type(ST): o m 2"OD Split Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG m m 3"OD Split Spoon Sampler(D&M) F Ring Sample SZ Water Level() Approved by: ow `I 0 Grab Sample 0 Shelby Tube Sampler Water Level at time of drilling(AID) 111 Associated Earth Sciences,Inc. Exploration Log > p, Project Number Exploration Number Sheet 'FS Ad ;Iv kRIQ KE100287A EB-4 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A aii Location Renton,WA Datum N/A _ Driller/Equipment Boretec/Track Date Start/Finish, 11/11/1 f1,11/1 1/10 Hammer Weight/Drop 140#/30" Hole Diameter(in) 7 inn hen iii c N _ UI `-'o =71 " Blows/Foot r n c•E °1 a 3 E 45 iu S l 0° o m m tit `� T `� DESCRIPTION " 10 20 30 40 1 1/2 inches asphalt paving. Lodgement Till 18 inches recovery. Very dense,moist,brown,fine to coarse SAND,with 22 I Si silt,little fine to coarse gravel(SM). No stratification. 38 A88 _ 50 80/E" t - 5 I S-2 2 inches recovery. Blowcount overstated. Gradation as above based on 48o/e" recovery and cuttings, • - ltii • - 1018 inches recovery, Grades to with fine to coarse gravel(SM), 12 S-3 32 *72 IN I40 - - Advance Outwash NI • - 15 I 18 Inches recovery. Very dense,moist,brown,fine SAND,few silt,trace 29 S-a fine gravel(SP). Gradational stratification,primarily of gravel fraction. 40 Aso 40 iii - - ill - 20 T 18 inches recovery, To 21 feet gradation as above. Below 21 feet dense, is I S-5 moist,gray,fine to medium SAND,trace silt(SP). 22 A47 - 11 ----- 25 Bottom of exploration boring at 21 1/2 feet sib i - 25 iiii - ilri - 30 NO ilk Q- 35 0 N - iii E Is . a- co a Sampler Type(ST): i to S m 2"OD Split Spoon Sampler(SPT} a No Recovery M-Moisture Logged by: BWG o � 3"OD Split Spoon Sampler(D&M) Ring Sample 7 Water Level O Approved by: m w 12Grab Sample 0 Shelby Tube Sample T. Water Level at time of drilling(ATD) iii i 7 Associated Earth Sciences,Inc. Exploration Log ; �;: mlk qq id Project Number Exploration Number Sheet 1 t KE100287A EB-5 1 of 1 Project Name Early Childhood Center Ground Surface Elevation (ft) N/A 7 Location RPntOP.WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 11/11 WV 1/11/10 Hammer Weight/Drop 140#/30" Hole Diameter(in) 7 innhas 7 ,g---_ 3 :g-,,,11 c ru_ 40 Q. S l= E - A. Blows/Foot N fi 7 N N Grass and topsoil. DESCRIPTION 10 20 30 40 8 7 Lodgement Till ------_--_—_ '- 7 . 14 inches recovery. Very dense,moist,mottled,brown,fine to coarse 11 I 8-1 SAND,with silt and fine to coarse gravel(SM). No stratification. 29 A62 33 7 - 5 I 18 inches recovery. Gradation as above. 16 S 2 30 472 42 f _ _____ ___. __- - -- Advance Outwash - - - - 10 16 inches recovery. Very dense,moist,brown,fine SAND,few silt(SP). 15 I S-3 Significant gradational stratification. 26 29 455 1 7 " - 15 I S 4 18 inches recovery. Gradation as above,but without stratification. 13 21 A46 7 . ' 25 7 - 20 18 inches recovery. As above. 16 S-5 23 A52 --------- 29 1 , Bottom of exploration boring at 21 112 feet - 25 T _ 1 _ - 30 wil 7 0- 35 N_ u7 a- 1 i" z 4.+ c 7 i„.. Sampler Type(ST): 8 Di 2"OD Split Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG 0 0 3"OD Split Spoon Sampler(D&M) E Ring Sample aZ Water Level() Approved by: LE 13.r ® Grab Sample Q Shelby Tube Sample�r Water Level at,time of drilling(ATD) I a Associated Earth Sciences,Inc. Exploration Log ,,�, I �..I Project Number Exploration Number Sheet :�. . R> , F KE100287A EB-6 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A ill Location Renton.WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 1 1/1 1/10,1 1/1 1/10 Hammer Weight/Drop 140#/30" Hole Diameter(In) 7 inches iii c d _ 0 o › in .c Al a E m a 3 3 Blows/Foot t°-' Cl. S E L° E >E ro ° C 11) ro �� o en ysi T `o DESCRIPTION " 10 20 30 40 _ Grass and topsoil. _ __.__,_ ----- _ Lodgement Till ill 18 inches recovery. Dense,moist,mottled,brown,fine to coarse SAND, 13 S-1 with silt,little fine to coarse gravel(SM). No stratification. 13 A30 - 17 ii - 5 18 inches recovery. Gradation as above, 11 S-2 21 A42 21 III • - _ _u - 10 Advance Outwash . 18 inches recovery. Dense,very moist,brown,fine SAND,few silt-silt 14 �43 1 S-3 stringer 11 to 11.2 feet(SP with ML). 24 I 19 IN - 15 T 18 Inches recovery. Becomes very dense. Grades with trace fine gravel. 22 f S-4 Significant stratification(SP). 40 A87 11 47 IIII trr - 20 I 18 inches recovery. Gradation as above,but minimal stratification(SP). 18 s 5 _—__�_____ ____—______-_ 24 �5a 30 Bottom of exploration boring at 21 1/2 feet Nil - 25 IN - 0 • - 30 . II 0 35 E, N U A• IA Z' 0. . - m- Sampler Type(ST): IS Y W 2"OD Split Spoon Sampler(SPT) El No Recovery M-Moisture Logged by: BWG o m 3"OD Split Spoon Sampler(D&M) 11 Ring Sample V Water Level O Approved by: • w 1 Water Level at time of drilling(ATD) am w ® Grab Sample ® Shelby Tube Sample - i 7 Associated Earth( Pro Sciences,Inc. Numberject Exploration Log 4 -- 0 , =# ) ` KE100287A ExploraEtioBn7umber S1hoftI 7 Project Name Early ChilcIod Center Ground Surface Elevation(ft) N/A Location Renton.WAtig Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 11/1_1/1 n,1 1/11/10 Hammer Weight/Drop 140#/30" Hole Diameter(In) 7 inches7 F co U O O > f0 N. a hBlows/Foot S EL gL. 3 5 7 8 O N @ m` - - . T co ©ESCRIPTION C.) io 20 30 40 ° _Grass and topsoil. --mu ____ Fiu 7 _ - S 14 Inches recovery. Loose,very moist,brown,fine SAND,with silt,few 6 - fine gravel(SM). 3 - I__ 4 7 _ 5 S-2 6 inches recovery. Gradation as above. 3 4 AP 5 7 . Advance Outwash - 10 ._ 18 inches recovery. Dense,moist,brown,fine SAND,few silt,trace fine 7 S-3 gravel(SP). Gradational stratification. a 14 A30 16 7 - f5 6 inches recovery. Disturbed cuttings resemble S-3. is S-4 23 A63 III 30 gm — 20 Sys No recovery. s 17 A34 --1 17 ir _ S-6 Dense,moist,gray,fine SAND,few silt(SP). No stratification.--- --~ g . . _ 14 3a 21 — 25 Bottom of exploration boring at 24 feet r r _ 30 r r 0- 35 N U' A -_ Z ^. 0. 0 Sampler Type(ST): I [Li 2"OD Spilt Spoon Sampler(SPT) 0 No Recovery M-Moisture Logged by: BWG o UJ 3"OD Split Spoon Sampler(D&M) In Ring Sample SL Water Level() Approved by: co y ® Grab Sample VI Shelby Tube Samples Water Level at time of drilling(ATD) r a- GRAIN SIZE ANALYSIS - MECHANICAL Si pate Project Project No. Soil Description 06 11/15/2010 Early Childhood Center KE100287A Tested By Location EB/EP No Depth Sand few silt trace gravel MS Onslte EB-1 S-5 20' Wt. of moisture wet sample+Tar 284.12 Total Sample Tare 395.02 so Wt.of moisture dry Sample+Tare 268.47 1Total Sample wt +tare 780.45 Wt.of Tare 99.38 Total Sample Wt 385,4 Wt. of moisture Dry Sample 169.09 Total Sample Dry Wt 352,8to Moisture% 9% Specification Requirements Sieve No. Diam.(mm) Wt. Retained(g) %Retained % Passing Minimum Maximum 3.5 90 100.00 No - 100.00 3 76.1 2.5 64 - 100.00 2 50.8 - 100.00 1.5 38.1 - 100.00 nrr 1 25.4 - 100.00 3/4 19 - 100.00 3/8 9.51 2.12 0.60 99.40 , #4 4,76 6.86 1.94 98,06 go #8 2.38 16.5 4.68 95.32 #10 2 20.98 5.95 94.05 #20 0.85 60.75 17.22 , 82.78 #40 0.42 170,14 48.23 51.77 iilri #60 0.25 252.44 71.56 28.44 #100 0.149 288.98 _ 81.92 18.08 #200 0.074 303.51 I 86.03 13.97 ..._ Ili US STANDARD SIEVE NOS. 3" 3/4" NO 4 NO 16 NO 40 NO 200 100 llIli H1 i 8001 , . I t i , , : I t : . j_I_i ! I !. , 1 i i i i ' a e 60 j , , I I 2 40 - I : . ar a Ii , I , i 100 10 1 0.1 0.01 MO Grain Size,mm NI Ili ASSOCIATED EARTH SCIENCES, INC. 911 5lh Ave,Suite 100 Kirkland,WA 98033 425-827-7701 FAX 425.827-5424 NI i 7 GRAIN SIZE ANALYSIS - MECHANICAL Date Project Project No. Soil Description T 11/15/201Q Early Childhood Center KE100287A Tested By Location EB/EP N0 Depth Sand few silt trace gravel MS• Onsite EB-4 S-4 7 Wt. of moisture wet sample + Tat 350.84 Total Sample Tare 518.65 Wt.of moisture dry Sample+Tare • 328.44 Total Sample wt +tare 999,07 Wt.of Tare 97.74 Total Sample Wt 480.4 Wt.of moisture Dry Sample 230.7 Total Sample Dry Wt 437.9 T Moisture% 10% _ Specification Requirements Sieve No. Diam.(mm) Wt. Retained(g) % Retained %Passing Minimum Maximum 3.5 90 - 100,00 T 3 76.1 _ 100.00 2.5 64 100.00 2 50.8 _ - 100.00 _ 1.5 �_ 38.1 - 100.00 1 25.4 - 100.00 . 3/4 19 _ _ 100.00 3/8 9.51 5.05 1.15 98.85 _ #4 4.76 15.68 3,58 96.42 #8 2.38 31.9 7.28 92.72 #10 2 38.06 8.69 91.31 #20 0.85 79.73 18.21 81,79 #40 0.42 185.25 . 42.30 57.70 7 #60 0.25 304.35 69.50 30.50 #100 0,149 357.62 81.67 18.33 #200 0.074 378.18 86.36 13.64 IUS STANDARD SIEVE NOS, rrr 3" 3/4" N0 4 NO 10 N0 40 NO 200 1 wo i , , . _ • ; , , .............._ ,... . . L. , L-i { i i { , . i.1t ; ; . , , , . , . m i.11 i , F. 60 i- 1 i T coc 40 i 1 i i 0. • • I . , : • , • 20 1l ' { o _ . T 1o0 10 1 0.1 0.01 Grain Size,mm I I ASSOCIATED EARTH SCIENCES, INC. 911 5th Ave,Suite i00 Kirkland,WA 08033 425-827-7701 FAX 425-827-5424 I T 7 GRAIN SIZE ANALYSIS - MECHANICAL ist Date Project Project No. Soil Description 11/15/2010 Early Childhood Center KE100287A or Tested By Location EB/EP No Depth Sand few silt trace gravel MS Onsite EB-6 S-5 20' _ Wt. of moisture wet sample+Tar 335.45 Total Sample Tare 299.08 a Wt. of moisture dry Sample+Tare 315.95 _Total Sample wt +tare 692.02 Wt.of Tare 100.9 Total Sample Wt 392.9 Wt.of moisture Dry Sample 215.05 Total Sample Dry Wt 360.3 Moisture% 9% Specification Requirements Sieve No, Diam.(mm) Wt. Retained(g) %Retained %Passinig Minimum Maximum 3.5 90 - 100.00 3 76.1 - 100.00 2.5 64 - 100.00 2 50.8 - 100.00 1.5 38.1 - 100.00is 1 25.4 - 100.00 3/4 19 - 100.00 3/8 9.51 - 100.00 #4 4.76 0.85 0.24 99.76 as #8 2.38 1.11 0.31 99.69 _ #10 _ 2 4.31 1,20 98.80 #20 0.85 82.8 22.93 . 77.07 #40 0.42 227.05 63.02_ 36.98 ini #60 0.25 304 84.38 15.62 #100 0.149 304.19 84.43 15.57 #200 0.074 329.27 91.39 - 8.61 a US STANDARD SIEVE NOS. 3' 314" NO 4 NO 16 NO 40 NO 200 II iii , l I I ' 80 l..i,i i I 1 • ! , I L 60 i.� r I I I I- 40 ! ! ' I I ' 0 100 10 1 0.1 0.01 i iI Grain Size,mm io Ili ASSOCIATED EARTH SCIENCES, INC. 911 5th Ave,Suite 100 Kirkland,WA 98033 425.827-7701 FAX 425-827.5424 IS Illi a Associated Earth Sciences, Inc. Technical Memorandum Date: August 15, 2011 Page 1 To: Calvin Gasaway,Greene Gasaway Project Name: Early Childhood Center at Architects Hillcrest Special Services David Nason,AHBL Facility Doreen Gavin,AHBL I Doug Ducharme, BLRB From: Bruce Guenzler, L.G Project No: KE100287A Curtis Koger, L.G.,L.E.G., L.Hg. Subject: Preliminary Design Infiltration Rate _ The purpose of this memo is to summarize our infiltration field data and infiltration system design recommendations for the project. For this study, we completed infiltration rate testing in four excavated pits. Stratigraphy Vashon advance outwash was encountered beneath Vashon lodgement till at most of the locations in the area of the proposed building and in each of the excavations made for construction of test pit drains. Vashon advance outwash consists of sands and gravels deposited in lakes and melt water streams during the advancing phase of the Frasier Glaciation. The outwash deposits were subsequently compacted by the weight of the overlying glacial ice. Advance outwash deposits typically exhibit gradational stratification, including stringers consisting of silt and/or silty sand. Such stratification has the potential to limit advance outwash sediments from performing well as an infiltration receptor. The construction of infiltration pit drains, as recommended in this memo, penetrates low permeability fine grained interbeds and substantially improves the ability of advance outwash to serve as an infiltration receptor. The depth of the advance outwash sediments varies across the site. At the infiltration test locations, the depth to these sediments ranged from 4.5 feet(ft)below ground surface to 16 ft below ground surface. Infiltration Testing Generally,the infiltration testing method consisted of cutting the existing sod at the proposed testing locations and excavating pits with the track-mounted excavator. The pits were excavated with an approximate area of 2.5 feet wide by 6.5 to 9 feet long,with approximate depths of 16.5 to 18 feet,and had relatively vertical sidewalls and flat bottoms. Water was provided by an on-site fire hydrant. The firstphase of testing consisted of pre-test soaking followed by a constant head flow testing phase. Water was introduced through an electronic flow meter with instantaneous and total flow readout. The water level in the pits was monitored in a polyvinylchloride (PVC) sounding pipe,placed on the bottom of the pit, with an electronic water level meter. Water was allowed to rise in the pit until the water level reached the top of the receptor in order to simulate proposed facility conditions. After the water level reached the target level, the flow Kirkland Office•911 Fifth Avenue,Suite 100•Kirkland,WA 98033•P I (425)827-7701•F I (425)827-5424 Everett Office•29111/2 Hewitt Avenue,Suite 2•Everett,WA 98201•P I(425)259-0522•F I(425)252-3408 Tacoma Office•805 Martin Luther King Jr.Way•Tacoma,WA 98405•P I(253)722-2992•F I (253)722-2993 www.aesgeo.com �r. Associated Earth Sciences, Inc. Technical Memorandum NI was reduced in order to maintain a constant water level (constant head). The duration of the constant head phase was generally 4 hours. Readings of the water level, instantaneous flow and total flow were recorded at approximately 15 minute intervals using a manual electronic flow meter, and on 15 minute intervals with a pressure transducer. The final phase of testing,the falling head phase, began by discontinuing the water flow immediately after the constant head phase.After discontinuing water flow,water levels were monitored with both manual electronic water level meter and pressure transducer methods. The duration of this phase varied depending on the infiltration rate. Recommendations ,,,,, Based on the performance of infiltration tests, it is AESI's opinion that the on-site Vashon Advance Outwash sediments are suitable for the proposed infiltration pit drain. For preliminary design purposes, we anticipate that um a pit with dimensions of at least 3 feet wide by 10 feet long and 20 feet deep will have the capacity to dispose of 0.020 cubic feet per second(cfs)of storm water. We anticipate that construction of the pit drains will be performed by a large excavator working at arms reach. Trench excavations are currently planned for construction with near-vertical sidewalls and immediate backfilling of the excavated pit. Based on the observed soil conditions in our explorations, this method of construction is expected to be feasible. However,areas where we previously excavated trenches for testing purposes may require sloping or some other form of shoring,if necessary, due to the loosely placed existing backfill. Upon reaching the total depth of excavation for each pit,the trench should be backfilled with free-draining granular material, such as clean,washed pea gravel or other free-draining material, as specified below. A sample of the free-draining material should be made available to AESI at least 1 week prior to drain construction,so that so laboratory tests can be performed, as needed. After drain backfilling and prior to installing surface treatments, the pea gravel must be water-settled to minimize settlement of the pea gravel backfill once the facility is "on- line." AESI must be present during excavation of the facility and during drain testing. The final engineering design for the storm water facility must be reviewed by AESI to confirm the conclusions and opinions as contained in this memo. rr Date: August 15, 2011 Project No: KE100287A Page 2 Associated. Eh Sciences, Inc. 4�5: .v • env:.._: U a' a die Cele6ra6T Over 251Jear o fService August 17, 2011 Project No. KE100287A Renton School District c/o Greene Gasaway, PLLC P.O. Box 4158 ;rib Federal Way, Washington 98063 Attention: Mr. Calvin Gasaway Subject: Summary of Additional Borings to Delineate Existing Fill Early Childhood Learning Center NMI 1800 Index Avenue NE Renton, Washington Dear Mr. Gasaway: This letter summarizes supplementary exploration borings to delineate existing fill on the northeast portion of the site. This work is supplementary to our earlier work on-site, which has included completion of subsurface explorations and preparation of a geotechnical engineering report dated NO November 18, 2010. This letter should be considered supplementary to our earlier geotechnical engineering report. BACKGROUND Our earlier subsurface exploration program on-site identified subsurface conditions generally characterized by lodgement till that was typically on the order of 8 to 14 feet thick, underlain by advance outwash sediments that would be used as the storm water receptor. One boring, EB-7, identified existing fill to a depth of approximately 7 feet above the native sediments on the northeast part of the site. Review of available historic information showed that the northeast portion of the site had previously been occupied by houses that were demolished. We speculated that existing fill observed at EB-7 may have been related to the previous houses in this area. We proposed to complete additional subsurface explorations in the vicinity of EB-7 to further explore the limits of the existing fill. This report summarizes the results of those additional exploration borings. au ADDITIONAL SUBSURFACE EXPLORATIONS We completed a total of eight additional subsurface exploration borings. Attached with this letter are a "Vicinity Map," Figure 1, showing the site location; a "Site and Exploration Plan," Figure 2, which depicts all of the explorations completed on-site to date; and "Enlarged Site and Kirkland Everett fi Tacoma 425-827-7701 425-259-0522 253-722-2992 +rr 1-1ttajab:7 www.aeseeo.com air► Early Childhood Learning Center Renton, Washington Summary of Additional Borings to Delineate Existing Fill so Exploration Plan," Figure 3, which depicts explorations in the vicinity of EB-7 at a larger scale. Figure 3 also displays the depth of observed existing fill at each exploration boring location. In general, the additional exploration borings identified an area of existing fill that extends north and south of EB-7. The existing fill appears to extend beyond the limits of the previously existing houses in this area, and therefore may not be directly related to the previous residential development. In general, the existing fill is of similar gradation and appearance as the native site soils,but is looser. Our exploration borings did not encounter substantial quantities of deleterious materials such as organic material or demolition waste in the existing fill. Detailed descriptions of the conditions observed in each exploration boring are included on the interpretive subsurface exploration logs included with this letter. CONCLUSIONS AND RECOMMENDATIONS We do not recommend that new foundations be constructed above existing fill. We recommend that below foundation elements the existing fill be removed, and the planned foundation grade um restored, as needed, with structural fill as defined in our earlier geotechnical engineering report. New foundations can then be constructed with an allowable foundation soil bearing pressure of 3,000 pounds per square foot (psf) above the new structural fill, If desired, slab-on-grade floors may be underlain by existing fill capped with 2 feet of new structural fill. If this approach is selected, we recommend that the existing fill be excavated as needed to allow placement of at least 2 feet of new structural fill below the planned floor and capillary break materials. The resulting surface should be proof-rolled and compacted to 95% of the modified Proctor maximum dry density. Any soft, yielding, organic, or otherwise unsuitable soils should receive additional preparation as dictated by field conditions at the time of construction. Following subgrade preparation, 2 feet of new structural fill should be placed. This approach will result in floor slabs constructed above existing fill. This approach will result in cost savings as compared to removing all of the existing fill as previously described for areas below new foundations, and will also result in risk of some additional floor slab settlement if undetected ■r unsuitable fill remains below the floors. This risk is difficult to quantify, and settlement of floor slabs in the finished building could be challenging to repair. If the risks of larger than normal floor slab settlement are not acceptable, all existing fill should be removed from below floor slabs. Below paving, we recommend completing stripping and excavation to paving subgrade elevation. The resulting surface should be proof-rolled and compacted to 95% of the modified Proctor maximum dry density. Any soft, yielding, or organic areas should receive additional preparation, as dictated by field conditions at the time of construction. The paving sections recommended in our comprehensive geotechnical engineering report can then be constructed as planned. This approach will result in considerable cost savings as compared to removing all of the existing fill below paving, but will result in somewhat higher risks of paving settlement. Paving areas are generally easier and less expensive to repair than previously described for floor slabs. If the August 17, 2011 ASSOCIATED EARTH SCIENCES, INC. KDM/rh-KE100287AS-Prajecrs1201002871KEIWP Page 2 Early Childhood Learning Center Renton,.Wasltin;ton Sumnamy of Additional Borings to Delineate Existing Fill potential for larger than normal total and differential settlement of paving areas is unacceptable, all existing fill should be removed from below planned paving. Below grade sensitive buried utilities, such as gravity drains, we recommend that at least 1 foot of the existing fill be removed. The subgrade should be proof-rolled and compacted to 95% of the modified Proctor maximum dry density. Any soft, yielding, or organic areas should receive additional preparation as dictated by field conditions at the time of construction. One foot of new structural fill should be placed to reach planned grade for pipe bedding materials. This approach will result in some additional risk of settlement as compared to removal of all of the existing fill. It may be appropriate to increase drainage gradients of utilities constructed above existing fills 11 such that some settlement can be tolerated while still maintaining planned flow directions and positive gradients in the pipes. CLOSURE We appreciate the opportunity to submit this proposal and hope that it meets your needs. If you have any questions, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Kurt D. Merriman, P.E. Principal Engineer Attachments: Figure 1 - Vicinity Map Figure 2 - Site and Exploration Plan em Figure 3 - Enlarged Site and Exploration Plan Subsurface Exploration Logs diS ow August 17, 2011 ASSOCIATED EARTH SCIENCES, INC. Kowa)-KE100287A5-Projecrs1 2 01 002 8 71KEIWP Page 3 mill111111111111L • , .'''''.''•\-'"' '" '. ,,,V -,_44 7,.., , ....,,,,,,,,,.....,,,,,-- , .„.. ., ,,., i4, ,,,,,,; yi T.:;; •--;;;S;"1,- i....:...: ,,1, .;:.,..v•„__,,,q,:t h,....,,,, ,i, INAtk...%,tr,•:,••,?..1)...1,,,;;,,or.,."1. ..1:coefy ,..,?,., , , 1,,7„r... : r"<"1"''''.,'''„*.c.;.:.‘;‘-',"'" .-: 1;,..'•":,/,1A;;;??';',A;Vf,.10 L'-`:-./ 4 ., 1-::::.1..`,.,-.45.4,, ..';.:,1',' lifi...:;.a•:' .V4:'''iK.Vil`P-!'&i'leti,.3!-V(1'•`'.)if'iT.III.r,§1......;-1. 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I) iceo 2000 5 'LA,'''"":.-:!.'-'4%9'41 t'':''t,':.`'c''', ''' A' ',.''.'\'''`A''',''''+.. '••-•• •:".. -:- •:; -; -'-'•'1,'•-• .•.'?1,, •'. • . • . A' .. A,--4'',..)•+ /i1')., •:K.. 11 IV t5' -f''''•v:•.:.''i+A'eln"'•---41•::-;:i...:-•.+1,11.11 '1V, .'17i;'••1''4+44:pi,bi,!:,,,-,7,,---....,.,,....,,,, 7-,i,_i__„,r-:•,:,.*„,,, .\ , :.,,O,...;,;:-•is, :,..,-, ,,,,,,,I,4• ,,,. f,,,„,,, :, ,,„k ... , , FEET 4., . _.. . _ i. _. .. . 1,..r. "......0+,1,4!'--,,.....,i,..,4i+..,.''''N.).,------"+6.70:t-".-- .1.' ' ..--•,L.','.. .'' k,A.44*' " . • ° 1- ' ''I Irr•A L 1`1. I*/ 4.1 At*I 44-... ",..e.1.--.,;, ....hz..„,-.r,..„ *4 A ,...- h,. .-. ,hh,.-(,..;:,e,iy...;,.04 _hi .,,,hh -4)- - -, - ..,, P., „. 'A ... • - - EFERENCE, USGS TORO! _ • . - • ' :, - ' - ' . FIGURE I Associated Earth Sc iences,Inc. ,t• M vh.i':•„';',0 r L. , , , . .,. EARLYVGICHrLDHOITYOMD CAGPETN0. IER bATE 7/11 A I . . . RENTON,WA SHIN PROJ.NO. KE100287A gm 100287 Eery Childhood Centers 100287 Site and Expli 7-11.cdr it 1 'f} -!, Z�t 1,�r `gri a-1 gy'S Tf it . i .Yr€Y- .s_',I), s f ' ; `'..�a,' t+t 'nrr mg , F 1f rit m ,�; r .' i Ett - cv �� #i ,Nre ,- f ial 5t a"/ i,) i, �ir iti „ f , • .s 1, o rs:t.,-- ',-.40 S 1 t.'v.,,'_ ,-, ' m S'r4 ,,--:''',--Y,--'-,-141''''4V2:''-":-' •••'''?A;:i''''-,'' _' 'r . '''ilkk:c, ''' : -,','S/j 'AA' ' :'1. :'''',4 ' r-_£:t r -i i r- CFI r • 4 - !H CD a PA - �" 4 a- L '?sr ID � ,,),�t t- ; i Et i - F{r- {_ Tom- ,s, 4# Asa �� a .,:Y 4 dis d t° ; - _ 3 a 4-}{; ry - -, "r �1 e t . - k 3 S R ta T }f r -- err - z , ' r i-'`",- .. - ,--a; _ ,1 �"-"flit . *' �' Ci st 3x y .-'� ,� _ 4 _ ram` p i 5 ` --, { _,A r .` r a • '4• i 5 ,r L l"i„ F.,,- ',: t MIN -e. F L • « t, �' :curt :, tr-� a.-jt+j -: i�� Ejf��� : fir- )t �: _ i?� ` k.-K, .3 Z �f rd lir - ry€ram €�;-e 1 t 1 _ Ski `. 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Er, ijcil. .,..„,,-; uis .7 0 - / ,..J v?,11 -,, -- ..t• --- . ,„, , . zop," "' -.. i -i.\ cn ,iN . * ,,... ,A „,,ralr.;0, :, 0 /----- ,4tir:: ' 0 •Y 1.-.•t!., g svo_.' ,,,,„•., ,,,,, 0 F.T.4 *-1 - k?9. .4 \ ow-pb.?.,.;',' C9 --1- ,- TS IA? ,•'' am P e ' .Vi t5''' Cl/ cu (..) 4-' W1 , rcl _...1'..... u.i 'CI ce 0 ,tri Ill th ' :(-A Illi . Jpo•p-IJIdx3 pup%IS DROOL 1 ieweo pootIPIND AJI3 LS001. IS mil Associated Earth Sciences,Inc. _ Geologic & Monitorin Well Construction Log r., :5 Project Number Well-Number Sheet F:.:.:i>+1 . ``'tiff;: ' _, f :_:., KE100287A EB-1+� 1 of 2 Project Name Early Childhood Center Location Renton. WA Elevation(Top of Well Casing) N/A Surface Elevation(ft) Water Level Elevation Date Start/Finish 1111 i/iCi 11/i 10 IN Drilling/Equipment Boretec/Track Hole Diameter(in) 7 inches Hammer VVeight/Drop 140#/30" L N V QY '5 O VI t D iii N l 0 2,E it) CO WELL CONSTRUCTION ' v' DESCRIPTION - Flush monument Grass and topsoil. Concrete 2 to 0 feetme Lodgement Till / , Hand dug to 2 112 feet. - Ii:- io 18 inches recovery. Dense,very moist,mottled,gray and brown, 12 fine to coarse SAND,little silt,little fine gravel(SW-SM). No 18 stratification or structure. 5 Benlonite chips 47 to 2 feel -- 8 18 inches recovery. Becomes medium dense,mottled brown 12 Subtle gradational stratification. -I 16 Advance Outwash rlr - 10 1 1/4-inch PVC blank to 18 inches recovery. Very dense,very moist,brown,fine to coarse surface 33 z0 SAND,little to with silt,little fine gravel(SM). 30 MN -15 20 18 Inches recovery. Very dense,moist,brownish gray,fine SAND, .I few silt. Subtle gradational stratification(SP).NM 38 -20 35 18 inches recovery Grades with trace fine gravel 11 34 29 el 9_ - Weak seepage zone(perched). -25 1 t8 18 inches recovery. Very dense,moist to wet(varies),gray,fine to r� 1 32 coarse SAND,few silt,interbedded with brown,fine SAND,with silt so (SP with SM). Weak seepage above brown,fine sand `3fl ``' 28 18 inches recovery Very dense,moist,gray,fine to medium SAND, >r -1 35 trace to few sill(SP). 43 - - 0 WI Fo--35 28 As above. =r - 35 o - 28 0 — Sampler Type(ST): IN II 2"OD Split Spoon Sampler(SPT) Q No Recovery M - Moisture Logged by: BWG J m 3"OD Split Spoon Sampler(D&M) p Ring Sample Q Water Level() Approved by: S' i 0 Grab Sample 0/ Shelby Tube Sample I Water Level at time of drilling(ATD) ow li Associated Earth Sciences,Inc. Geologic & Monitorinq Well Construction Log Project Number W i Number Sheet rs ;:4ii, ",>': I: ` KE100287A 1 EB-1 2 of 2 iii Project Name Early Childhood Center Location Renton,WA Elevation(Top of Well Casing) N/A Surface Elevation(ft) Water Level Elevation Date Sled/Finish 11/11/10'11/11/10 Drilling/Equipment Bor tec/Track _ Hole Diameter(in) 7 incllgs IN Hammer Weight/Drop 140#/30" d uo r L m_ bl t'a onT- o i 1111 a WELL CONSTRUCTION T m �� DESCRIPTION =--- ( 34 18 inches recovery. Trace fine gravel concentrated in zones 1-inch 11 38 thick. Mk 45 I t--45 28 18 inches recovery. Trace gravel becomes more evenly distributers[ ,,, fg 38 I. Colorado#10-20 60 to 47 111. • feet - —50 x_ tia J 24 18 inches recovery. Grades without gravel — 40 11 1 1/4-inch PVC screenW. sn ' 0.020-inch slot 60 to 50 feet • 71 k A 554 l 2G 18 inches recovery as above -0 50 lit M —GO 28 18 Inches recovery. Gradation as above Well Tag#BBB 965 32 34 Boring terminated ai 61 112 feel on 11/1 jl10 _ ma —65 silt - iiii —70 — 0 a-75 — a o _ et z• o Ili m- _ IL o Sampler Type(ST): • m 2"OD Split Spoon Sampler(SPT) 0 No Recovery M - Moisture Logged by: BWG IN l 3"0D Split Spoon Sampler(D&M) ® Ring Sample Water Level O Approved by: S _._J Grab Sample �/ Shelby Tube Sample Water Level al time of drilling(ATD) z __.._ Ili • • am Associated Earth Sciences,Inc. Exploration Log I Y, 13 F ` Project Number Exploration Number Sheet �, L =`,l. i I r. f:{ ,; KE100287A EB-2 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton. WA Datum N/A Driller/Equipment Boretec/Track Dale Start/Finish 1 1/1 1/1 ff,UMW__ 1LSf _ took Hammer WeighVDrop -140#/30" Hole Diameter(in) Z.irarJheR Z N U D - Wlft Q N T v i N Blows/Foot i- a t10 0 E m o r n DESCRIPTION 10 20 30 40 O Grass and topsoil. — wrt Lodgement Till Hand dug to 2 feel. S 1 18 inches recovery. Dense,moist,mottled,gray,line to coarse SAND, 13 with sill,little fine gravel(SM). No stratification. 17 4,34 0111 - - i l 5 18 inches recovery. Gradation as above 13 S-2 22 449 - 27 OM • dill - 10 TI S-3 10 inches recovery Becoming gray and less mottled is as 50g.' - Or`" rr Advance Outwash - 15 18 inches recovery. Dense,moist,brownish gray,fine SAND,Mlle fine 13 S-4 gravel and silt(SM) Gradational stratification 10 A3; Yr1 — 20 la - 20 — 18 inches recovery Very dense,moist,gray,fine SAND,few slit(SP). No i8 S-5 stratification 25 '55 — _.---__.._..----------..__._.__...-- __ — .... .. 30 Bottom of exploration boring at 21 1/2 feet - 25 - 30 rwr rrr o-- 35 0 rr_ E E Mill v. u' (L - • I _ 1 a Sampler Type(ST): ID oil 8 Q 2"OD Split Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG a al3"OD Split Spoon Sampler(D&M) ® Ring Sample 2Water Level() Approved by: w 0 Grab Sample Q Shelby Tube Sample.Y Water Level at time of drilling(ATD) o OM Associated Earth Sciences,Inc. Exploration Log _._ Project Number Exploration Number Sheet r '!) _: ` -I '' KE100287AB 3 1 of ) Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton. WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish '11/11/10,11/11/10 — Hammer Weight/Drop 140#/30" Hole Diameter(in) 7 inch cis lig c n' °i o > io ur 2 .c —as N BloWS/FDD! la c a ro£ o w si a S E >. _ 1" N ro m ° �N DESCRIPTION " 10 20 30 40 O • 2 inches asphalt paving Lodgement Till 1111 18 inches recovery Very dense,moist,mottled,gray,fine to coarse 24 72 S 1 I SAND,little fine gravel(SM). No stratification. 24 36 iii - 5 18 inches recovery. Gradation as above. Becoming brown. 17 . 1 S-2 27 57 30 S - 10 18 inches recovery, Very dense,moist,gray,fine to medium SAND,few t4 S-3 fine gravel,trace silt(SP). No stratification 26 '04 fili 38 (Weak seepage zone) - 15 I Very dense,very moist to wet,brown,fine SAND,with silt(SM) No t7 27 '54 S-4 stratification 27 iiii Ili 20 r Very dense,moist,gray,fine to medium SAND,trace silt and fine gravel 17 Ur { S-5 (SP) No stratification. 24 51 JJJ -- _ 27 • Bottom of exploration boring at 21 112 feel tliiii - 25 IN • II - 30 IN a- 35 0 illi N 0 a- P 5 . N J L III Sampler Type(ST). - co 8 Ul 2"OD Split Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG lib oo 3"0D Split Spoon Sampler(D&M) ® Ring Semple Water Level() Approved by: m El Grab Sample Z Shelby Tube Sample I Water Level at lime of drilling(ATD) W S IN MN ----~ Associated Earth Sciences,Inc. Exploration Log IN ! Project Number Exploration Number Sheet "Fd I " `-,• l J i�;"\ l KE100287A 1 EB-4 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A -- Location Renton, WA Dalurn N/A ow Driller/Equipment Boretec/Track Dale StarUFinish 11/11/10,,t 1/1,1110 Hammer WeighUDrop 140#/30" -. Hole Diameter(in) 7 inches c T1 • o, 'im" a ro .c a a -- Blows/Foot i- a S E ° ,, 3E v o I, c 1• ("o .c C m m DESCRIPTION 10 20 30 40 Q t 1/2 inches asphalt paving. Lodgement Till + _ S 1 18 inches recovery. Very dense,moist,brown,fine to coarse SAND,with 22 silt,little fine to coarse gravel(SM). No stratification. 38 "88 50 S-2 2 inches recovery. Blowcounf overstated Gradation as above based on sae •50rr^ recovery and cuttings l ii ii i - 10 S-3 18 inches recovery. Grades to with fine to coarse gravel(SM). 12 2 72 — 40 on • Advance Ouiwash - 15 -- 18 inches recovery. Very dense,moist,brown, fine SAND,few silt,trace 20 +s S-4 line gravel(SP). Gradational stratification,primarily of gravel fraction- 40 'r10 -_ 40 Iiiii - 20 - 18 inches recovery To 21 feet gradation as above. Below 21 feet dense, 10 S-5 moist,gray,tine to medium SAND,trace sill(SP). 22 0,7 T _._._.. --- — _ ..._.. — 25 4 Bottom of exploration boring at 21 112 feet al - 25 as - 30 rrf hilt O - 35 N or C u 0 1 Z 0 _ _I. __ -- irr 'hiSampler Type(ST) S ED 2"OD Split Spoon Sampler(SPT) a NO Recovery M-Moisture Logged by: BWG c `L 3"OD Split Spoon Sampler(D&IN) ® Ring Sample V Water Level() Approved by: ci to in 0 rnl to Grab Sample r Shelby Tube Sample I-! Water Level at time of drilling(ATD) lair Associated Earth Sciences,Inc. Exploration Log Project Number Exploration Number Sheet • ";; 4 ", ;'{'; KE100287A EB-5 1 of 1 ow Project Name Early Childhood Center Ground Surface Elevation(if) N/A Location Renton, WA _ Datum NIA — Driller/Equipment Boretec/Tracl< Date StarllFinlsh 11111/1(1,11/11/10 Hammer Weight/Drop 140#130" Hole Diameter(in) _7 inches oil C N 0 Z.- ' p > D in' a °i Blows/Foot - IN a di . S E > o• m o w v j' °c° " t DESCRIPTION im 10 20 30 40 O _ Grass and topsoil. .... ... -. 11b Lodgement Till __ 14 inches recovery Very dense,moist,mottled,brown,fine to coarse i i .6z S.1 SAND,with silt and fine to coarse gravel(SM). No stratification 29MO ff 33 - 5 -`-• i8 inches recovery. Gradation as above. is S_2 ' 30 '72 — 42 NI - Advance Outwash ntir - 10 18 inches recovery Very dense,moist,brown,fine SAND,few silt(SP). 15 r S 3 Significant gradational stratification 26 55 29 Ili - 15 — 18 inches recovery. Gradation as above,but without stratification. 13 2i S-4 zt + bill 25 - 20 20 — 18 inches recovery. As above 16 S•5 23 '52 29 Bottom of exploration boring at 21 112 feel Iiiii _ 25 SU . 1I - 30 ' NA o-• 35 N 7 O n. r7 - Sampler Type(ST): m $ m 2"• OD Split Spoon Sampler(SPT) 0 No Recovery M-Moisture Logged by: BWG OS cc 3• "OD Split Spoon Sampler(D&M) ® Ring Sample - Water Level() Approved by: 0 g Grab Sample 0 Shelby Tube Sample Y. Water Level at time of drilling(ATD) Ili a - I • 7 . _____ Associated Earth Sciences,Inc. Exploration Loq - , Project Number Exploration Number Sheet ' 11 II L`ri,:; r " i 7 =' 1 I. J i1{ = � d KE100287A EB-G 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton, WA Datum _/A 7 Driller/Equipment Boretec/Track Date Start/Finish� 1 1/1 1/i f1,11111110 v Narnmer WeighUDrop 140#/30" Hole Diameter(in) 7 inchmc c w - to s ° ° `� Blows/Fool °' in in r E aE 'vQ J 1 N DESCRIPTION `� 10 20 30 40 0 +t . Grass and topsoil Lodgement Till — 18 inches recovery. Dense,moist,mottled,brown,fine to coarse SAND, 13 1 . i S 1 with silt,little fine to coarse gravel(SM). No stratification. 13 17 '30 S-2 18 inches recovery. Gradation as above- 21 42 i 21 I - 10 i Advance Oulwashf 18 inches recovery. Dense,very moist,brown,tine SAND,few silt-silt 1a4S-3 stringer 11 to 11 2 feet(SP with ML). 24 43 19 7 _ - 15 18 inches recovery Becomes very dense Grades with trace fine gravel 22 S•4 Significant stratification(SP) 40 97 7 47 7 . - 20 18 inches recovery Gradation as above,but minimal stratification(SP). 18 I S-5 24 "54 ----._._..._.. --- sa . 7 . Bottom of exploration boring al 21 1/2 lest • 7 - 25 • I . - 30 1 • Si I a_ 35 N W. 7 ,,,,. a 5. ,, ____ 1 ,, Sampler Type(ST): o ft 2"OD Spilt Spoon Sampler(SPT) 0 No Recovery M-Moisture Logged by: BWG a m 3"OD Split Spoon Sampler(D&M) inRing Sample Q Water Level() Approved by: in El Sample El Tube Sample Water Level at lime of drilling(ATD) r� a Associated Earth Sciences,Inc. Exploration Log _ nn, II r.1!9 �. Project Number Exploration Number Sheeta l_".="I Ll ', ` ., KE100287A EB-7 1 of 1 —___ Project Name Early Childhood Center Ground Surface Elevation(It) N1A __ Location Renton. WA Datum N/A Driller/Equipment Boretec/Track Date StarUFinish 11.1,1,1./10,11./11L111_ . NE Hammer Weighl/Drop 140#/30" Hole Diameter(in) 7 inriaes _ c 2 N p > to U� U O -'N J N Blows/Foot �w- trr .� g Q e Q. Y -. Ur . S E E I. o co co L_ 1' "' 0� DESCRIPTION o10 20. 30 40 O _ Grass and topsoil._..__ _— —_ _._ �__.__ - Ili • Fill 14 inches recovery. Loose,very moist,brown,line SAND,with sill,few 6 A• S-1 fine gravel(SM). 3 IN 5 6 inches recovery. Gradation as above 3 S-2 4 AD 5 Advance Outwash Illi 10 18 inches recovery. Dense,moist,brown,line SAND,few silt,trace fine 9 S-3 gravel(SP) Gradational stratification IIt A3o 16 a . • i - 15 6 inches recovery. Disturbed cuttings resemble S-3. to S-4 23 53 a 39 • a 20 I No recovery- 7 p34 S-g 17 Dense,moist,gray,fine SAND,few sill(SP) No stratification. 9 T S-6 14 A33 ._ 21 - 25 Bottom of exploration boring at 24 reel a a • - 30 . a a- 35 1111 IN In o. a E db 2 a 1-- Sampler Type 1ST): lilt o m 2"OD Split Spoon Sampler(SPT) DNo Recovery M-Moisture Logged by: BWG ix m Q Water Level Approved by: 0 3"OD Split Spoon Sampler(D&M) Ring Sample () co w Grab Sample © Shelby Tube Sample T Water Level at lime of drilling(ATD) a- NO f • Associated Earth Sciences,Inc. Exploration Log { ll l- Project Number Exploration Number Sheet ,t=. [•.1 • � { KE100287A EB-8 1 of 1 Project Name Early Childhood CentaL Ground Surface Elevation(ft) N/A Location Renton,WA Datum N/A I Driller/Equipment Boretec/Track Date Start/Finish 7/24/11,704111 Hammer Weight/Drop 140#/30" Hole Diameter(in) i .,,- c 715 >. .. t/) 0 73 a flt. Blows/Foot t-- d T in 0(/) o m en .c DESCRIPTION o 3 10 20 30 40 I' _ -.Grass and topsoil-5 inches. _. Lodgement Till Hand dug 1 1/2 feet. Medium dense,very moist,light brown,fine SAND,with silt,little fine . Verygrav el(SM). 10 T S-i Very dense,moist,light brown with mottling,fine to medium SAND,with 14 `60 silt,little fine to coarse gravel(SM);no stratification. 41 - 5 — Very dense,moist,gray,fine to coarse SAND,with slit,few fine to coarse 20 S-2 gravel(SM);no stratification. 41 A50/6' ir _ — . Bottom of exploration boring at 6 112 feet _ lo I . I . 15 1 _ I . -- 20 i _ I - 25 I _ - 30 - - 35 R Yi- T i_ a' a 0 _ Sampler Type(ST): T8 m 2"OD Split Spoon Sampler(SPT) O No Recovery M-Moisture Logged by: BWG c, � 3"OD Split Spoon Sampler(D&M) E Ring Sample SZ Water Level() Approved by: w ® Grab Sample ® Shelby Tube Sampler Water Level at time of drilling(ATD) IT a a■ni► Ill Associated !Earth Science's,Inc. Exploration Log , r. r Project Number Exploration Number Sheet C� � U� � ! '•, � {: KE100287A EB-9 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton.WA Datum N/A Ili Driller/Equipment Boretec/Track Date Start/Finish 7/24/11,7/04/11 Hammer WeighUDrop 140#130" Hole Diameter(in) 8 5 lb fr r �'a Blows/Foot to wto S E (t4`�rn o rom T `� DESCRIPTION ° 10 20 30 40 ° . Grass and topsoil. _ 6 I SA Lodgement TIl) 10 A19 Medium dense,moist,light brown,fine SAND,with silt,few fine gravel 9 - (SM);no stratification. Dense,moist,brown,fine to medium SAND,with silt(SM). 15 19 A49 tMO I S-2 30 —_ 5 Very dense,moist,gray,fine to coarse SAND,with silt,little fine gravel 25 I S-3 (SM);no stratification. Sample smeared with material from above. 38 &50/z" f(1/<" ft - Advance Outwash Cuttings become gray,with less silt. — 10 - Very dense,moist,gray,fine to medium SAND,few to little slit(varies),few 15 • S 4 fine gravel(SP-SW);gradational stratification. 24 A53 — — 29 Bottom of exploration boring at 11 112 feet al - — 15 NI 1.11 — 20 _ ii — 25 Iiiii - Brill — 30 ill — 35 R N- t i N 7- tJ Sampler Type(ST): N P. m 2"0D Split Spoon Sampler(SPT) 0 No Recovery M-Moisture Logged by: BWG IN o m 3"OD Split Spoon Sampler(D&M) Ring Sample Q Water Level() Approved by: m ® Grab Sample © Shelby Tube Sample 1 Water Level at time of drilling(ATD) - it r 1 Associated Earth Sciences,inc. Exploration Log ,, I 1.81 y J Project Number Exploration Number Sheet LEI LJ El] KE100287A EB-10 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A 1 Location Renton,WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 7124/1 l„7174/91 Hammer Weight/Drop 140#/30" Hole Diameter(in) c 13 a 12 2 s E 8.$ `) OD R-ki g Blows/Foot o T bn (9° o e ro g DESCRIPTION ° 10 20 30 AO ° I , 1 Grass and topsoil. �- - 5 S-1 --- Fill 7 ♦12 Medium dense,moist,light brown,fine SAND,little to with slit,trace coarse 5 - sand/fine gravel,trace organic(topsoil)(SM). TS"2 7 12 A19 — 5 Loose,moist,light brown,fine SAND,with silt,few fine gravel/coarse sand, 3 I S-3 trace organic(topsoil)(SM). 2 A9 T 7 • Advance Outwash T — 10 Dense,moist,brown,fine SAND,few silt,trace fine gravel/coarse sand S-4 (SP);no stratification. 13 A23 I 13 • 1 _ — 15 I S 5 Becomes very moist,with thin(1/4-inch)silly stringers(SP). 12 T 12 13 2. _ , _..,_. Bottom of exploration boring at 16 1/2 feet T . — 20 T _ T = 25 T 30 T . 1 — 35 I R N_ T a .,,_ a 0 T Sampler Type(ST): o El2"OD Split Spoon Sampler(SPT) O No Recovery M-Moisture logged by: BWG m 3"OD Split Spoon Sampler(D&M) a Ring Sample Q Water Level() Approved by: Di 1 Water Level at lime of drilling{ATD) E Grab Sample VI Shelby Tube Sample er rr► a Associated Earth Sciences,Inc. Exploration Log a ( ,� Project Number Exploration Number Sheet =r:j '� . It :�= III 1 KE100287A EB-11 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton,WA Datum N/A ttrrr Driller/Equipment Boretec/Track Date Start/Finish 7/24/11 7/74/11 Hammer Weight/Drop 140#/30" Hole Diameter(in) o > — — °(� Blows/Foot -- .- a L°S E E 22. ° T `e �� DESCRIPTION o to 20 30 40 6 Grass and topsoil. _ 6 Si Fill 8 A14 Medium dense,moist,mixed brown and gray,fine to coarse SAND,with 6 slit,few fine gravel(SM). Loose,moist,brown and dark brown,fine SAND,few to little silt,trace fine 5 IS-2 gravel(SP-SM). 5 A9 Mk 4 - 5 Lodgement Till IDense,moist,gray,fine to coarse SAND,with slit,little fine gravel(SM);no 9 S 3 stratification. 23 A40 Smoother drilling. a — 10 S-4 Becomes very dense. EWE" A78 • - Bottom of exploration boring at 11 feet a — 15 a a — 20 a — 25 at dill — 30 a — 35 . III 0 N N- N NIJ. < a. e Sampler Type(ST): o Nil m 2"0D Split Spoon Sampler(SPT) 0 No Recovery M-Moisture Logged by: BWG o [I] 3"OD Split Spoon Sampler(D&M) F Ring Sample SZ Water Level O Approved by: ED co w El Grab Sample 0 Shelby Tube Sample Water Level at time of drilling(ATD) < a Associated Earth Sciences,Inc. Exploration Log ,: ���� , j Project Number Exploration Number Sheet I LJ '�' { :.I KE100287A EB-12 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(tt) N/A Location Renton.WA Datum N/A Driller/Equipment oretec/Track Date Start/Finish 7/74/11,7/24/11 Hammer Weight/Drop 140#/30" Hole Diameter(in) as +C o o >S EBlows/FootO T �' DESCRIPTION "0 CO CO to 20 30 ao Grass and topsoil 4 S-1 Lodgement Till 7 Al2 I 5 ` 5 2 Very dense,moist,gray,fine to medium SAND,with silt,few fine gravel 12 (SM);no stratification. 16 A66 50 - 5 T Advance Outwash Ve dense,moist,gray,fine SAND,few silt,trace coarse sand/fine gravel 28 S 3 (SP. 40 4150/i" Mile 0/4" Bottom of exploration boring at 6 1/2 feet — 10 — 15 ra — 20 as - — 25 ilia — 30 'N - 35 - N yN,• ON �. 7 a Sampler Type(ST): m 2"OD Split Spoon Sampler(SPT) No Recovery M-Moisture Logged by: BWG ID 3"OD Split Spoon Sampler(D&M) E Ring Sample S-Z Water Level() Approved by: Grab Sample ® Shelby Tube Sample Water Level at time of drilling(ATD) as ANIS Associated Earth Sciences, Inc. Exploration Log Project Number KE100287A Exploration Number EB-13 Sheet tlma=.,, . e �.: , j i1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton.WA Datum N/A Driller/Equipment Boretec/Track Date Start/Finish 7/94/11 704/11 iris Hammer Weight/Drop 140#/30" Hole Diameter(In) E .J -Q/i-1 Blows/ 2 am Foot o. S E E> E. a T 0rn DESCRIPTION 10 20 30 40 0 . Grass and topsoil . 6 ♦ t tb 1 S-1 10 2. _ 111 Lodgement TIII 15 Medium dense,moist,brown,fine to coarse SAND,with silt,little fine - -t gravel(SM). Advance Outwash 12 I ♦t6 S-2 Dense,moist,gray,fine SAND,few slit,trace coarse sandlfine gravel(SP); 24 NI gradational stratification. 24 5 Grades with lithe silt. Gradational stratification 29 8-3 €ors" A7g - IS Bottom of exploration boring at 6 feet -- 10 alli iIll - 15 1.11 — 20 - Ili — 25 sit Ell — 30 _ ell — 35 II N~ Vi- 1 rn Q_ ow a Sampler Type(ST): 4 Ilia 8 m 2"OD Split Spoon Sampler(SPT) 0 No Recovery M-MoistureLoggedby: MO $ to 3"OD Split Spoon Sampler(D&M) I] Ring Sample SZ Water Level() Approved by: ® Grab Sample J Shelby Tube Sample I Water Level at time of drilling(ATD) Mil Arta Associated Dill)Sciences,Inc, Exploration Log ,�ll Project Number Exploration Number Sheet f KE100287A EB-14 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) _ N/A Location Renton.WA Datum N/A ' Driller/Equipment Boretec/Track Date Start/Finish 7194/11704/11 Hammer Weight/Drop 140#/30" Hole Diameter(In) touo o >(0 �' n -- -J Blows/Foot E°f o. S E i ° T - 1a3 O DESCRIPTION o10 20 30 40 rut Grass and topsoil 1 S"1 — Fill 11 A20 Medium dense,moist,light brown,fine SAND,with silt,few fine gravel g J (SM). an S 2 Loose,moist,brown,fine SAND,with silt,trace fine gravel(SM). a .4 5 S 3 - 5 Loose,moist,gray,fine SAND,few silt,few coarse sand/fine gravel(SP). 4 I A9 9 Advance Outwash — 10 Very dense,moist,gray,fine SAND,few silt and fine gravel(SP). 35 S-4 .0l4" A50/,„ Bottom of exploration boring at 11 feet tirf — 15 sit r>ra1 — 20 it Is — 25 Irtrr — 30 so ttrii — 35 o" N- a, a Sampler Type(ST): m 2"OD Split Spoon Sampler(SPT) El No Recovery M-Moisture Logged by: BWG EU 3"OD Split Spoon Sampler(D&M) 110 Ring Sample 3L Water Level() Approved by: ® Grab Sample Z Shelby Tube Samples Water Level at time of drilling(ATD) IWI lrt • Associated Earth Sciences,Inc. Exploration Log z { Project Number Exploration Number Sheet }:, t KE100287A EB-15 1 of 1 Project Name Early Childhood Center Ground Surface Elevation(ft) N/A Location Renton,WA Datum N/A Driller/Equipment Boretec/Trck Date Start/Finish 7/94/11,7174/11 Hammer Weight/Drop 140#/30" Hole Diameter(in) in a D =) 'J' Blows/Foot S oa T CAN DESCRIPTION v 10 20 30 40 • Grass and topsoil. F I S-1 Lodgement TI11 t0 2` Medium dense,moist,brown,fine to medium SAND,with silt,few fine 15 I gravel(SM). S 2 Becomes dense,brownish gray 144 A34 20 — 5 g_3 Becomes very dense. cp„ A5ol5" " i1Yi Bottom of exptorallon boring et 6 feet — 10 11110 — 15 - tlf — 20 — 25 till • Ili — 30 - 35 • N' V) B. ttlt� Sampler Type(ST): al 2"OD Split Spoon Sampler(SPT) ❑ No Recovery M-Moisture Logged by: BWG m 3"OD Split Spoon Sampler(D&M) 111 Ring Sample . Water Level{) Approved by: co W Water Level at lime of drilling(ATD) ® Grab Sample ® Shelby Tube Samples Wlfi , +�w Appendix C aim Selected Department of Ecology Source Control BMPs MIN 11 I I Construction Stormwater Pollution Prevention Plan 0000 Renton Early Childhood Learning Center 210515.10 UM r�r 1111 a a r err ■r a a a a a IS a a am 4.1 Source Control BMPs BMP C101: Preserving Natural Vegetation Purpose The purpose of preserving natural vegetation is to reduce erosion wherever practicable. Limiting site disturbance is the single most effective method for reducing erosion. For example,conifers can hold up to about 50 percent of all rain that falls during a storm. Up to 20-30 percent of this rain may never reach the ground but is taken up by the tree or evaporates. Another benefit is that the rain held in the tree can be released slowly to the ground after the storm. dill Conditions of Use • Natural vegetation should be preserved on steep slopes,near perennial and intermittent watercourses or swales, and on building i. sites in wooded areas. • As required by local governments. Design and Natural vegetation can be preserved in natural clumps or as individual Installation trees,shrubs and vines. Specifications The preservation of individual plants is more difficult because heavy equipment is generally used to remove unwanted vegetation. The points to remember when attempting to save individual plants are: • Is the plant worth saving? Consider the location,species, size,age, vigor, and the work involved. Local governments may also have ordinances to save natural vegetation and trees. ildi • Fence or clearly mark areas around trees that are to be saved. It is preferable to keep ground disturbance away from the trees at least as far out as the dripline. rrr Plants need protection from three kinds of injuries: • Construction Equipment-This injury can be above or below the ground level. Damage results from scarring,cutting of roots,and compaction of the soil. Placing a fenced buffer zone around plants to be saved prior to construction can prevent construction equipment injuries. • Grade Changes-Changing the natural ground level will alter grades, which affects the plant's ability to obtain the necessary air, water,and minerals. Minor fills usually do not cause problems although sensitivity between species does vary and should be checked. Trees can tolerate fill of 6 inches or less. For shrubs and other plants,the fill should be less. When there are major changes in grade, it may become necessary to 11111 supply air to the roots of plants. This can be done by placing a layer of gravel and a tile system over the roots before the fill is made. A tile 4-2 Volume II—Construction Stormwater Pollution Prevention February 2005 a system protects a tree from a raised grade. The tile system should be Y laid out on the original grade leading from a dry well around the tree trunk. The system should then be covered with small stones to allow air to circulate over the root area. Lowering the natural ground level can seriously damage trees and shrubs. The highest percentage of the plant roots are in the upper 12 inches of the soil and cuts of only 2-3 inches can cause serious injury. To protect the roots it may be necessary to terrace the immediate area +rr around the plants to be saved. If roots are exposed, construction of retaining walls may be needed to keep the soil in place. Plants can also be preserved by leaving them on an undisturbed,gently sloping mound. To increase the chances for survival, it is best to limit grade changes and other soil disturbances to areas outside the dripline of the plant. • Excavations-Protect trees and other plants when excavating for drainfields,power,water, and sewer lines. Where possible,the trenches should be routed around trees and large shrubs. When this is not possible, it is best to tunnel under them. This can be done with hand tools or with power augers. If it is not possible to route the trench around plants to be saved,then the following should be 1.1 observed: Cut as few roots as possible. When you have to cut,cut clean. Paint cut root ends with a wood dressing like asphalt base paint. a Backfill the trench as soon as possible. Tunnel beneath root systems as close to the center of the main trunk to preserve most of the important feeder roots. Some problems that can be encountered with a few specific trees are: irir • Maple,Dogwood,Red alder,Western hemlock, Western red cedar, and Douglas fir do not readily adjust to changes in environment and special care should be taken to protect these trees. • The windthrow hazard of Pacific silver fir and madronna is high,while that of Western hemlock is moderate. The danger of windthrow increases where dense stands have been thinned. Other species(unless they are on shallow,wet soils less than 20 inches deep)have a low windthrow hazard. a • Cottonwoods,maples, and willows have water-seeking roots. These can cause trouble in sewer lines and infiltration fields. On the other hand,they thrive in high moisture conditions that other trees would not. • Thinning operations in pure or mixed stands of Grand fir, Pacific silver fir,Noble fir, Sitka spruce,Western red cedar,Western hemlock, a February 2005 Volume II—Construction Stormwater Pollution Prevention 4-3 w Pacific dogwood,and Red alder can cause serious disease problems. Disease can become established through damaged limbs,trunks, roots, and freshly cut stumps. Diseased and weakened trees are also susceptible to insect attack. Maintenance • Inspect flagged and/or fenced areas regularly to make sure flagging or Standards fencing has not been removed or damaged. If the flagging or fencing has been damaged or visibility reduced, it shall be repaired or replaced immediately and visibility restored. • If tree roots have been exposed or injured, "prune" cleanly with an appropriate pruning saw or lopers directly above the damaged roots and recover with native soils. Treatment of sap flowing trees (fir, hemlock, pine, soft maples) is not advised as sap forms a natural healing barrier. ire Oa MIN �.r OM rr Is 4-4 Volume II—Construction Stormwater Pollution Prevention February 2005 BMP C103: High Visibility Plastic or Metal Fence Purpose Fencing is intended to: (1)restrict clearing to approved limits; (2)prevent disturbance of sensitive areas,their buffers,and other areas required to be left undisturbed;(3) limit construction traffic to designated construction entrances or roads; and, (4)protect areas where marking with survey tape may not provide adequate protection. Conditions of Use To establish clearing limits,plastic or metal fence may be used: wi • At the boundary of sensitive areas,their buffers,and other areas required to be left uncleared. • • As necessary to control vehicle access to and on the site. Design and • High visibility plastic fence shall be composed of a high-density Installation polyethylene material and shall be at least four feet in height. Posts Specifications for the fencing shall be steel or wood and placed every 6 feet on center(maximum)or as needed to ensure rigidity. The fencing shall be fastened to the post every six inches with a polyethylene tie. On long continuous lengths of fencing, a tension wire or rope shall be used as a top stringer to prevent sagging between posts. The fence color shall be high visibility orange. The fence tensile strength shall NI be 3601bs./ft. using the ASTM D4595 testing method. • Metal fences shall be designed and installed according to the 0 manufacturer's specifications. • Metal fences shall be at least 3 feet high and must be highly visible. rig • Fences shall not be wired or stapled to trees. Maintenance • if the fence has been damaged or visibility reduced, it shall be - Standards repaired or replaced immediately and visibility restored. rri a a a 4-6 Volume I!-Construction Stormwater Pollution Prevention February 2005 w BMP C104: Stake and Wire Fence Purpose Fencing is intended to: (1)restrict clearing to approved limits; (2)prevent disturbance of sensitive areas,their buffers,and other areas required to be left undisturbed; (3)limit construction traffic to designated construction entrances or roads; and, (4)protect any areas where marking with survey tape may not provide adequate protection. 1 Conditions of Use To establish clearing limits, stake or wire fence may be used: • At the boundary of sensitive areas,their buffers, and other areas required to be left uncleared. 1 • As necessary,to control vehicle access to and on the site. Design and • See Figure 4.1 for details. Installation • More substantial fencing shall be used if the fence does not prevent Specifications encroachment into those areas that are not to be disturbed. Maintenance • If the fence has been damaged or visibility reduced, it shall be Standards repaired or replaced immediately and visibility restored. 1111 Survey Flagging Baling Wire Do Not Nail or Staple Wire to Trees 3' MIN. 10'-20'�► Metal Fence Post II II III III III III= II III III III IIIE111= I I I-. .1 11—1 I I'-'-f r 1--11 1--1 —I 1 1—III—I 1 1-1 I I— 1 I—I�12" RAIN. t i Y�_ Figure 4.1 —Stake and Wire Fence rr� riir +rr February 2005 Volume ii—Construction Stormwater Pollution Prevention 4-7 de 1111 lib BMP C105: Stabilized Construction Entrance Purpose Construction entrances are stabilized to reduce the amount of sediment transported onto paved roads by vehicles or equipment by constructing a stabilized pad of quarry spalls at entrances to construction sites. Conditions of Use Construction entrances shall be stabilized wherever traffic will be leaving a construction site and traveling on paved roads or other paved areas within 1,000 feet of the site. On large commercial, highway, and road projects, the designer should include enough extra materials in the contract to allow for additional stabilized entrances not shown in the initial Construction SWPPP. It is MI difficult to determine exactly where access to these projects will take place;additional materials will enable the contractor to install them where needed. Design and • See Figure 4.2 for details.Note: the 100' minimum length of the Installation entrance shall be reduced to the maximum practicable size when the Specifications size or configuration of the site does not allow the full length (100'). • A separation geotextile shall be placed under the spalls to prevent fine sediment from pumping up into the rock pad. The geotextile shall meet the following standards: ,, Grab Tensile Strength (ASTM D4751) 200 psi min. Grab Tensile Elongation (ASTM D4632) 30% max. Mullen Burst Strength(ASTM D3786-80a) 400 psi min. AOS (ASTM D4751) 20-45 (U.S. standard sieve size) • Consider early installation of the first lift of asphalt in areas that will paved;this can be used as a stabilized entrance. Also consider the installation of excess concrete as a stabilized entrance. During large err concrete pours, excess concrete is often available for this purpose. • Hog fuel (wood-based mulch) may be substituted for or combined with quarry spalls in areas that will not be used for permanent roads. Hog fuel is generally less effective at stabilizing construction entrances and should be used only at sites where the amount of traffic is very limited. Hog fuel is not recommended for entrance stabilization in urban areas. The effectiveness of hog fuel is highly variable and it generally requires more maintenance than quarry spalls. The inspector may at any time require the use of quarry spalls if the hog fuel is not preventing sediment from being tracked onto pavement or if the hog fuel is being carried onto pavement. Hog fuel is prohibited in permanent roadbeds because organics in the subgrade soils cause degradation of the subgrade support over time. • Fencing(see BMPs C103 and C 104) shall be installed as necessary to restrict traffic to the construction entrance. 4-8 Volume ll—Construction Storm water Pollution Prevention February 2005 so • Whenever possible,the entrance shall be constructed on a firm, compacted subgrade. This can substantially increase the effectiveness of the pad and reduce the need for maintenance. Maintenance • Quarry spalls (or hog fuel)shall be added if the pad is no longer in Standards accordance with the specifications. • If the entrance is not preventing sediment from being tracked onto pavement,then alternative measures to keep the streets free of sediment shall be used. This may include street sweeping, an increase in the dimensions of the entrance,or the installation of a wheel wash. • Any sediment that is tracked onto pavement shall be removed by shoveling or street sweeping. The sediment collected by sweeping shall be removed or stabilized on site. The pavement shall not be cleaned by washing down the street, except when sweeping is ineffective and there is a threat to public safety. If it is necessary to wash the streets,the construction of a small sump shall be considered. The sediment would then be washed into the sump where it can be controlled. or • Any quarry spalls that are loosened from the pad, which end up on the roadway shall be removed immediately. • If vehicles are entering or exiting the site at points other than the construction entrance(s), fencing(see BMPs C 103 and CI 04)shall be installed to control traffic. • Upon project completion and site stabilization, all construction accesses intended as permanent access for maintenance shall be permanently stabilized. Driveway shall meet the requirements of the permitting agency It Is recommended that the entrance be Crowned se that runoff {cylsdn�Ppea chains the pad +�:nvcu wl� Install driveway Culvert �Zi J4‘,:„+i; if there Is a roadside \`r.�± ditch present •,�/:��;.;;+, ; ; 0"•8"quarry spells N•j G Geolextila a 12"min.ltsckness j \43 Provide kill width of ingresslegress area Figure 4.2—Stabilized Construction Entrance ism February 2005 Volume II—Construction Stormwater Pollution Prevention 4-9 BMP C106: Wheel.Wash Purpose Wheel washes reduce the amount of sediment transported onto paved me roads by motor vehicles. Conditions of Use When a stabilized construction entrance(see BMP C105) is not preventing sediment from being tracked onto pavement. • Wheel washing is generally an effective BMP when installed with careful attention to topography. For example,a wheel wash can be detrimental if installed at the top of a slope abutting a right-of-way where the water from the dripping truck can run unimpeded into the street. N • Pressure washing combined with an adequately sized and surfaced pad with direct drainage to a large 10-foot x 10-foot sump can be very effective. Design and Suggested details are shown in Figure 4.3. The Local Permitting Installation Authority may allow other designs. A minimum of 6 inches of asphalt Specifications treated base(ATB)over crushed base material or 8 inches over a good subgrade is recommended to pave the wheel wash. Use a low clearance truck to test the wheel wash before paving. Either a belly dump or lowboy will work well to test clearance. Keep the water level from 12 to 14 inches deep to avoid damage to truck hubs and filling the truck tongues with water. Midpoint spray nozzles are only needed in extremely muddy conditions. Wheel wash systems should be designed with a small grade change, 6 to 12 inches for a 10-foot-wide pond,to allow sediment to flow to the low side of pond to help prevent re-suspension of sediment. A drainpipe with a 2-to 3-foot riser should be installed on the low side of the pond to allow ■r for easy cleaning and refilling. Polymers may be used to promote coagulation and flocculation in a closed-loop system. Polyacrylamide (PAM) added to the wheel wash water at a rate of 0.25 - 0.5 pounds per ri 1,000 gallons of water increases effectiveness and reduces cleanup time. If PAM is already being used for dust or erosion control and is being applied by a water truck, the same truck can be used to change the wash water. Maintenance The wheel wash should start out the day with fresh water. Standards The wash water should be changed a minimum of once per day. On large earthwork jobs where more than 10-20 trucks per hour are expected,the wash water will need to be changed more often. Wheel wash or tire bath wastewater shall be discharged to a separate on- site treatment system, such as closed-loop recirculation or land application,or to the sanitary sewer with proper local sewer district i approval. N 4-10 Volume II—Construction Stormwater Pollution Prevention February 2005 N h 2"Schedule 40 / 1 %"schedule 40 for sprayers 1 2% 5:1 5:1 I I 2% Slope""` Slope Slope -1 Slope - 11 • 1/1 Slope Wheel Wash Plan F-16--1 15 20' 15 _-i501 Elevation View Water level I1 • 1:1Slope • •" I � 1111INfi''/ • I 12 I Section A-A sr N.T.S. Figure 4.3 Wheel Wash Notes: 1. Asphalt construction entrance 6 in.asphalt treated base (ATB). .. 2. 3-inch trash pump with floats on the suction hose. 3. Midpoint spray nozzles, if needed. 4. 6-inch sewer pipe with butterfly valves. Bottom one is a drain. Locate top pipe's invert 1 foot above bottom of wheel wash. rrr 5. 8 foot x 8 foot sump with 5 feet of catch. Build so can be cleaned with trackhoe. 6. Asphalt curb on the low road side to direct water back to pond. 7. 6-inch sleeve under road. 8. Bali valves. 9. 15 foot.ATB apron to protect ground from splashing water. February 2005 Volume 11—Construction Storm water Pollution Prevention 4-11 rrr Ii BMP C107: Construction Road/Parking Area Stabilization Purpose Stabilizing subdivision roads, parking areas,and other onsite vehicle transportation routes immediately after grading reduces erosion caused by construction traffic or runoff. so • Roads or parking areas shall be stabilized wherever they are constructed, Conditions of Use whether permanent or temporary, for use by construction traffic. • Fencing (see BMPs C103 and C104) shall be installed,if necessary, to • limit the access of vehicles to only those roads and parking areas that are stabilized. Design and • On areas that will receive asphalt as part of the project, install the first Installation lift as soon as possible. Specifications • A 6-inch depth of 2-to 4-inch crushed rock, gravel base, or crushed surfacing base course shall be applied immediately after grading or utility installation. A 4-inch course of asphalt treated base(ATB)may also be used,or the road/parking area may be paved. It may also be possible to use cement or calcium chloride for soil stabilization. If cement or cement kiln dust is used for roadbase stabilization,pH monitoring and BMPs are necessary to evaluate and minimize the effects on stormwater. If the area will not be used for permanent roads, rrr parking areas, or structures, a 6-inch depth of hog fuel may also be used,but this is likely to require more maintenance. Whenever possible, construction roads and parking areas shall be placed on a firm, compacted subgrade. • Temporary road gradients shall not exceed 15 percent. Roadways shall be carefully graded to drain. Drainage ditches shall be provided on each side of the roadway in the case of a crowned section,or on one side in the case of a super-elevated section. Drainage ditches shall be directed to a sediment control BMP. • • Rather than relying on ditches, it may also be possible to grade the road so that runoff sheet-flows into a heavily vegetated area with a well- developed topsoil. Landscaped areas are not adequate. If this area has at least 50 feet of vegetation,then it is generally preferable to use the vegetation to treat runoff,rather than a sediment pond or trap. The 50 feet shall not include wetlands. If runoff is allowed to sheetflow through 11111 adjacent vegetated areas, it is vital to design the roadways and parking areas so that no concentrated runoff is created. • Storm drain inlets shall be protected to prevent sediment-laden water entering the storm drain system(see BMP C220). Maintenance • Inspect stabilized areas regularly,especially after large storm events. Standards • Crushed rock,gravel base,hog fuel,etc. shall be added as required to maintain a stable driving surface and to stabilize any areas that have eroded. • Following construction,these areas shall be restored to pre-construction condition or better to prevent future erosion. 4-12 Volume Il— Construction Storm water Pollution Prevention February 2005 UI ■r BMP C120: Temporary and Permanent Seeding mo Purpose Seeding is intended to reduce erosion by stabilizing exposed soils. A well-established vegetative cover is one of the most effective methods of wr reducing erosion. Conditions of Use • Seeding may be used throughout the project on disturbed areas that have reached final grade or that will remain unworked for more than 30 days. • Channels that will be vegetated should be installed before major earthwork and hydroseeded with a Bonded Fiber Matrix. The vegetation should be well established (i.e., 75 percent cover)before water is allowed to flow in the ditch. With channels that will have high flows, erosion control blankets should be installed over the +�+ hydroseed. If vegetation cannot be established from seed before water is allowed in the ditch, sod should be installed in the bottom of the ditch over hydromulch and blankets. "' • Retention/detention ponds should be seeded as required. • Mulch is required at all times because it protects seeds from heat, moisture loss, and transport due to runoff. • All disturbed areas shall be reviewed in late August to early September and all seeding should be completed by the end of September. Otherwise, vegetation will not establish itself enough to provide more than average protection. • At final site stabilization,all disturbed areas not otherwise vegetated or stabilized shall be seeded and mulched. Final stabilization means the completion of all soil disturbing activities at the site and the establishment of a permanent vegetative cover,or equivalent permanent stabilization measures(such as pavement,riprap, gabions or geotextiles)which will prevent erosion. Design and • Seeding should be done during those seasons most conducive to Installation growth and will vary with the climate conditions of the region. Specifications Local experience should be used to determine the appropriate seeding periods. • The optimum seeding windows for western Washington are April 1 through June 30 and September 1 through October 1. Seeding that occurs between July 1 and August 30 will require irrigation until 75 percent grass cover is established. Seeding that occurs between October 1 and March 30 will require a mulch or plastic cover until 75 percent grass cover is established. • To prevent seed from being washed away, confirm that all required surface water control measures have been installed. WS February 2005 Volume II— Construction Storm water Pollution Prevention 4-13 t • The seedbed should be firm and rough. All soil should be roughened no matter what the slope. If compaction is required for engineering MN purposes, slopes must be track walked before seeding. Backblading or smoothing of slopes greater than 4:1 is not allowed if they are to be seeded. to • New and more effective restoration-based landscape practices rely on deeper incorporation than that provided by a simple single-pass rototilling treatment. Wherever practical the subgrade should be initially ripped to improve long-term permeability, infiltration,and water inflow qualities. At a minimum,permanent areas shall use soil amendments to achieve organic matter and permeability performance a,,, defined in engineered soil/landscape systems. For systems that are deeper than 8 inches the rototilling process should be done in multiple lifts, or the prepared soil system shall be prepared properly and then No placed to achieve the specified depth. • Organic matter is the most appropriate form of"fertilizer"because it provides nutrients(including nitrogen,phosphorus, and potassium) in r the least water-soluble form. A natural system typically releases 2-10 percent of its nutrients annually. Chemical fertilizers have since been formulated to simulate what organic matter does naturally. • In general, 10-4-6 N-P-K(nitrogen-phosphorus-potassium)fertilizer can be used at a rate of 90 pounds per acre. Slow-release fertilizers should always be used because they are more efficient and have fewer environmental impacts. It is recommended that areas being seeded for final landscaping conduct soil tests to determine the exact type and quantity of fertilizer needed. This will prevent the over-application of fertilizer. Fertilizer should not be added to the hydromulch machine and agitated more than 20 minutes before it is to be used. If agitated too much,the slow-release coating is destroyed. so • There are numerous products available on the market that take the place of chemical fertilizers. These include several with seaweed extracts that are beneficial to soil microbes and organisms. If 100 percent cottonseed meal is used as the mulch in hydroseed,chemical fertilizer may not be necessary. Cottonseed meal is a good source of long-term, slow-release, available nitrogen. • Hydroseed applications shall include a minimum of 1,500 pounds per acre of mulch with 3 percent tackifier. Mulch may be made up of 100 percent: cottonseed meal; fibers made of wood, recycled cellulose, hemp, and kenaf;compost; or blends of these. Tackifier shall be plant- based, such as guar or alpha plantago,or chemical-based such as polyacrylamide or polymers. Any mulch or tackifier product used shall be installed per manufacturer's instructions. Generally, mulches come in 40-50 pound bags. Seed and fertilizer are added at time of application. INN 4-14 Volume ll—Construction Stormwater Pollution Prevention February 2005 • Mulch is always required for y q o seeding. Mulch can be applied on top of the seed or simultaneously by hydroseeding. • On steep slopes, Bonded Fiber Matrix (BFM)or Mechanically Bonded Fiber Matrix (MBFM)products should be used. BFM/MBFM products are applied at a minimum rate of 3,000 pounds per acre of mulch with approximately 10 percent tackifier. Application is made so that a minimum of 95 percent soil coverage is achieved. Numerous products are available commercially and should be installed per manufacturer's instructions. Most products require 24-36 hours to cure before a rainfall and cannot be installed on wet or saturated soils. Generally,these products come in 40-50 pound bags and include all necessary ingredients except for seed and fertilizer. BFMs and MBFMs have some advantages over blankets: ■rr • No surface preparation required; • Can be installed via helicopter in remote areas; • On slopes steeper than 2.5:1, blanket installers may need to be roped and harnessed for safety; • • They are at least$1,000 per acre cheaper installed. In most cases,the shear strength of blankets is not a factor when used on slopes,only when used in channels. BFMs and MBFMs are good alternatives to blankets in most situations where vegetation establishment is the goal. tie • When installing seed via hydroseeding operations, only about 1/3 of the seed actually ends up in contact with the soil surface. This reduces the ability to establish a good stand of grass quickly. One way to overcome this is to increase seed quantities by up to 50 percent. • Vegetation establishment can also be enhanced by dividing the hydromulch operation into two phases: I. Phase 1-Install all seed and fertilizer with 25-30 percent mulch and tackifier onto soil in the first lift; rr� 2. Phase 2- Install the rest of the mulch and tackifier over the first lift. An alternative is to install the mulch,seed,fertilizer,and tackifier in one lift. Then, spread or blow straw over the top of the hydromulch at a rate of about 800-1000 pounds per acre. Hold straw in place with a standard tackifier. Both of these approaches will increase cost moderately but will greatly improve and enhance vegetative establishment. The increased cost may be offset by the reduced need for: 1. Irrigation 2. Reapplication of mulch 3. Repair of failed slope surfaces February 2005 Volume II—Construction Stormwater Pollution Prevention 4-15 r This technique works with standard hydromulch(1,500 pounds per acre minimum) and BFM/MBFMs (3,000 pounds per acre minimum). • Areas to be permanently landscaped shall provide a healthy topsoil that reduces the need for fertilizers, improves overall topsoil quality, provides for better vegetal health and vitality, improves hydrologic characteristics,and reduces the need for irrigation. This can be accomplished in a number of ways: so Recent research has shown that the best method to improve till soils is to amend these soils with compost. The optimum mixture is approximately two parts soil to one part compost. This equates to 4 inches of compost mixed to a depth of 12 inches in till soils. Increasing the concentration of compost beyond this level can have negative effects on vegetal health,while decreasing the concentrations can reduce the benefits of amended soils. Please note:The compost should meet specifications for Grade A quality compost in Ecology Publication 94-038. Other soils, such as gravel or cobble outwash soils, may require different approaches. Organics and fines easily migrate through the loose structure of these soils. Therefore, the importation of at least 6 inches of quality topsoil, underlain by some type of filter fabric to prevent the migration of fines,may be more appropriate for these soils. Areas that already have good topsoil, such as undisturbed areas,do not require soil amendments. • Areas that will be seeded only and not landscaped may need compost or meal-based mulch included in the hydroseed in order to establish vegetation. Native topsoil should be re-installed on the disturbed soil • surface before application. • Seed that is installed as a temporary measure may be installed by hand NM if it will be covered by straw, mulch, or topsoil. Seed that is installed as a permanent measure may be installed by hand on small areas (usually less than I acre)that will be covered with mulch,topsoil, or am erosion blankets. The seed mixes listed below include recommended mixes for both temporary and permanent seeding. These mixes,with the exception of the wetland mix,shall be applied at a rate of 120 pounds per acre. This rate can be reduced if soil amendments or slow- release fertilizers are used. Local suppliers or the local conservation district should be consulted for their recommendations because the appropriate mix depends on a variety of factors,including location, "Y exposure, soil type, slope, and expected foot traffic. Alternative seed mixes approved by the local authority may be used. rwr 4-16 Volume 11—Construction Stormwater Pollution Prevention February 2005 �Mi err Table 4.1 represents the standard mix for those areas where just a temporary vegetative cover is required. Table 4.1 Temporary Erosion Control Seed Mix %Weight %Purity %Germination Chewings or annual blue grass 40 98 90 Festuca rubra var. commutata or Poa anna Perennial rye- 50 98 90 aw Lolium perenne Redtop or colonial bentgrass 5 92 85 Agrostis alba or Agrostis tenuis White dutch clover 5 98 90 Trifolium repens Table 4.2 provides just one recommended possibility for landscaping seed. Table 4.2 Landscaping Seed Mix %Weight %Purity %Germination Perennial rye blend 70 98 90 Lolium perenne Chewings and red fescue blend 30 98 90 Festuca rubra var.commutata me or Festuca rubra This turf seed mix in Table 4.3 is for dry situations where there is no need for much water. The advantage is that this mix requires very little sag maintenance. Table 4.3 Low-Growing Turf Seed Mix % Weight %Purity %Germination Dwarf tall fescue(several varieties) 45 .98 90 Festuca arundinacea var. Dwarf perennial rye(Barclay) 30 98 90 Lolium perenne var. barclay _ Red fescue 20 98 90 Festuca rubra rr Colonial bentgrass 5 98 90 Agrostis tenuis Table 4.4 presents a mix recommended for bioswales and other s intermittently wet areas. Table 4.4 Bioswale Seed Mix* %Weight %Purity %Germination Tall or meadow fescue 75-80 98 90 Festuca arundinacea or Festuca elation Seaside/Creeping bentgrass 10-15 92 85 Agrostis palustris Redtop bentgrass 5-10 90 80 Agrostis alba or Agrostis gigantea *Modifred Briargreen, inc. Hs Guide Wetlands Seed Mix NW February 2005 Volume II—Construction Stormwater Pollution Prevention 4-17 1111 SO The seed mix shown in Table 4.5 is a recommended low-growing, relatively non-invasive seed mix appropriate for very wet areas that are not regulated wetlands. Other mixes may be appropriate, depending on the soil type and hydrology of the area. Recent research suggests that bentgrass(agrostis sp.)should be emphasized in wet-area seed mixes. Apply this mixture at a rate of 60 pounds per acre. m` Table 4.5 Wet Area Seed Mix* %Weight %Purity %Germination Tall or meadow fescue 60-70 98 90 Festuca arundinacea or Festuca elatior MI Seaside/Creeping bentgrass 10-15 98 85 Agrostis palustris Meadow foxtail 10-15 90 80 Alepocurus pratensis Alsike clover 1-6 98 90 Trifolium hybridum Redtop bentgrass 1-6 92 85 Agrostis alba *Modified Briargreen,Inc. Hydroseeding Guide Wetlands Seed Mix The meadow seed mix in Table 4.6 is recommended for areas that will be maintained infrequently or not at all and where colonization by native plants is desirable. Likely applications include rural road and utility right- of-way. Seeding should take place in September or very early October in order to obtain adequate establishment prior to the winter months. The appropriateness of clover in the mix may need to be considered, as this can be a fairly invasive species. If the soil is amended,the addition of clover rr may not be necessary. Table 4.6 Meadow Seed Mix %Weight %Purity %Germination Redtop or Oregon bentgrass 20 92 85 Agrostis alba or Agrostis oregonensis fie Red fescue 70 98 90 Festuca rubra • White dutch clover 10 98 90 Tri olium re ens Maintenance • Any seeded areas that fail to establish at least 80 percent cover(100 Standards percent cover for areas that receive sheet or concentrated flows)shall be reseeded. If reseeding is ineffective,an alternate method, such as sodding,mulching, or nets/blankets, shall be used. If winter weather prevents adequate grass growth,this time limit may be relaxed at the discretion of the local authority when sensitive areas would otherwise be protected. 4-18 Volume 11—Construction Storm water Pollution Prevention February 2005 ■i err rr< • After adequate cover is achieved,any areas that experience erosion shall be reseeded and protected by mulch. If the erosion problem is am drainage related,the problem shall be fixed and the eroded area reseeded and protected by mulch. ,rr • Seeded areas shall be supplied with adequate moisture, but not watered to the extent that it causes runoff. al eirr tra ■r rrr .�r February 2005 Volume II—Construction Storm water Pollution Prevention 4-19 rr BMP C121: Mulching Purpose The purpose of mulching soils is to provide immediate temporary - protection from erosion. Mulch also enhances plant establishment by conserving moisture,holding fertilizer, seed, and topsoil in place, and moderating soil temperatures. There is an enormous variety of mulches that can be used. Only the most common types are discussed in this section. r•r Conditions of Use As a temporary cover measure,mulch should be used: • On disturbed areas that require cover measures for less than 30 days. • As a cover for seed during the wet season and during the hot summer months. • During the wet season on slopes steeper than 3H:l V with more than 10 feet of vertical relief. • Mulch may be applied at any time of the year and must be refreshed lib periodically. Design and For mulch materials,application rates, and specifications,see Table 4.7. Installation Note: Thicknesses may be increased for disturbed areas in or near Specifications sensitive areas or other areas highly susceptible to erosion. Mulch used within the ordinary high-water mark of surface waters should be selected to minimize potential flotation of organic matter. Composted organic materials have higher specific gravities(densities)than straw, wood, or chipped material. Maintenance • The thickness of the cover must be maintained. Standards • Any areas that experience erosion shall be remulched and/or protected 1110 with a net or blanket. If the erosion problem is drainage related,then the problem shall be fixed and the eroded area remulched. r�r Oil 4-20 Volume 11—Construction Stormwater Pollution Prevention February 2005 11111 _ — Table 4.7 Mulch Standards and Guidelines Mulch Application Material Quality Standards Rates Remarks Straw Air-dried;free from 2"-3"thick;5 Cost-effective protection when applied with adequate undesirable seed and bales per 1000 sf thickness. Hand-application generally requires greater coarse material, or 2-3 tons per thickness than blown straw.The thickness of straw may be acre reduced by half when used in conjunction with seeding. In windy areas straw must be held in place by crimping,using a rn tackifier,or covering with netting. Blown straw always has to be held in place with a tackifier as even light winds will blow it away.Straw,however,has several deficiencies that should be considered when selecting mulch materials.It often introduces and/or encourages the propagation of weed species and it has no significant long-term benefits. Straw should be used only if mulches with long-term benefits are unavailable locally. It should also not be used within the + ordinary high-water elevation of surface waters(due to flotation). Hydromulch No growth Approx.25-30 Shall be applied with hydromulcher. Shall not be used inhibiting factors. lbs per 1000 sf without seed and tackifier unless the application rate is at or 1500 -2000 least doubled. Fibers longer than about%-1 inch clog lbs per acre hydromulch equipment, Fibers should be kept to less than 3/, inch. Composted No visible water or 2"thick min.; More effective control can be obtained by increasing Mulch and dust during approx. 100 tons thickness to 3". Excellent mulch for protecting final grades Compost handling. Must be per acre(approx. until landscaping because it can be directly seeded or tilled purchased from 800 lbs per yard) into soil as an amendment. Composted mulch has a coarser supplier with Solid size gradation than compost.It is more stable and practical Waste Handling to use in wet areas and during rainy weather conditions, Permit(unless exempt). Chipped Site Average size shall 2"minimum This is a cost-effective way to dispose of debris from Vegetation be several inches. thickness clearing and grubbing,and it eliminates the problems Gradations from associated with burning. Generally,it should not be used on fines to 6 inches in slopes above approx. 10%because of its tendency to be length for texture, transported by runoff. It is not recommended within 200 variation,and feet of surface waters. If seeding is expected shortly after interlocking mulch,the decomposition of the chipped vegetation may tie properties. up nutrients important to grass establishment. Wood-based No visible water or 2"thick;approx. This material is often called"hog or hogged fuel." It is Mulch dust during 100 tons per acre usable as a material for Stabilized Construction Entrances handling. Must be (approx. 800 lbs. (BMP C105)and as a mulch. The use of mulch ultimately purchased from a per cubic yard) improves the organic matter in the soil. Special caution is supplier with a Solid advised regarding the source and composition of wood- Waste Handling based mulches. Its preparation typically does not provide Permit or one any weed seed control,so evidence of residual vegetation in exempt from solid its composition or known inclusion of weed plants or seeds waste regulations. should be monitored and prevented(or minimized). aw wr February 2005 Volume II—Construction Stormwater Pollution Prevention 4-21 rr BMP C123: Plastic Covering Purpose Plastic covering provides immediate, short-term erosion protection to • slopes and disturbed areas. Conditions of • Plastic covering may be used on disturbed areas that require cover Use measures for less than 30 days,except as stated below. • Plastic is particularly useful for protecting cut and fill slopes and stockpiles. Note: The relatively rapid breakdown of most polyethylene sheeting makes it unsuitable for long-term (greater than six months) applications. rai • Clear plastic sheeting can be used over newly-seeded areas to create a greenhouse effect and encourage grass growth if the hydroseed was installed too late in the season to establish 75 percent grass cover, or if the wet season started earlier than normal. Clear plastic should not be used for this purpose during the summer months because the resulting high temperatures can kill the grass. • Due to rapid runoff caused by plastic sheeting,this method shall not be used upslope of areas that might be adversely impacted by concentrated runoff. Such areas include steep and/or unstable slopes. "m • While plastic is inexpensive to purchase,the added cost of installation, maintenance, removal, and disposal make this an expensive material, us up to $1.50-2.00 per square yard. • Whenever plastic is used to protect slopes, water collection measures must be installed at the base of the slope. These measures include plastic-covered berms, channels,and pipes used to covey clean rainwater away from bare soil and disturbed areas. At no time is clean runoff from a plastic covered slope to be mixed with dirty runoff from a project. • Other uses for plastic include: 1. Temporary ditch liner; 2. Pond liner in temporary sediment pond; 3. Liner for bermed temporary fuel storage area if plastic is not reactive to the type of fuel being stored; 4. Emergency slope protection during heavy rains; and, 5. Temporary drainpipe("elephant trunk") used to direct water. rri 4-26 Volume 11-Construction Stormwater Pollution Prevention February 2005 +r. Design and • Plastic slope cover must be installed as follows: Installation 1. Run plastic up and down slope,not across slope; Specifications 2. Plastic may be installed perpendicular to a slope if the slope length is less than 10 feet; 3. Minimum of 8-inch overlap at seams; 4. On long or wide slopes, or slopes subject to wind, all seams should be taped; 5. Place plastic into a small (12-inch wide by 6-inch deep)slot trench err at the top of the slope and backfill with soil to keep water from flowing underneath; 6. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place; 7. Inspect plastic for rips, tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion; 8. Sandbags may be lowered into place tied to ropes. However, all sandbags must be staked in place. • Plastic sheeting shall have a minimum thickness of 0.06 millimeters. • If erosion at the toe of a slope is likely,a gravel berm, riprap, or other suitable protection shall be installed at the toe of the slope in order to reduce the velocity of runoff. Maintenance • Torn sheets must be replaced and open seams repaired. Standards • If the plastic begins to deteriorate due to ultraviolet radiation, it must be completely removed and replaced. • When the plastic is no longer needed, it shall be completely removed. • Dispose of old tires appropriately. ■w February 2005 Volume II—Construction Stormwater Pollution Prevention 4-27 .�r 1116 rn BMP C124: Sodding Purpose The purpose of sodding is to establish permanent turf for immediate rig erosion protection and to stabilize drainage ways where concentrated overland flow will occur. wr Conditions of Use Sodding may be used in the following areas: • Disturbed areas that require short-term or long-term cover. • Disturbed areas that require immediate vegetative cover. • All waterways that require vegetative lining. Waterways may also be seeded rather than sodded,and protected with a net or blanket. wS Design and Sod shall be free of weeds,of uniform thickness (approximately 1-inch Installation thick), and shall have a dense root mat for mechanical strength. „+ Specifications The following steps are recommended for sod installation: • Shape and smooth the surface to final grade in accordance with the approved grading plan. The swale needs to be overexcavated 4 to 6 inches below design elevation to allow room for placing soil amendment and sod. rr • Amend 4 inches(minimum)of compost into the top 8 inches of the soil if the organic content of the soil is less than ten percent or the permeability is less than 0.6 inches per hour. Compost used should Nil meet Ecology publication 94-038 specifications for Grade A quality compost. • Fertilize according to the supplier's recommendations. • Work lime and fertilizer 1 to 2 inches into the soil, and smooth the surface. iS • Lay strips of sod beginning at the lowest area to be sodded and perpendicular to the direction of water flow. Wedge strips securely into place. Square the ends of each strip to provide for a close,tight fit. Stagger joints at least 12 inches. Staple on slopes steeper than 3H:1V. Staple the upstream edge of each sod strip. • Roll the sodded area and irrigate. • When sodding is carried out in alternating strips or other patterns, seed the areas between the sod immediately after sodding. iS Maintenance If the grass is unhealthy, the cause shall be determined and appropriate Standards action taken to reestablish a healthy groundcover. If it is impossible to establish a healthy groundcover due to frequent saturation, instability,or 1111 some other cause,the sod shall be removed,the area seeded with an appropriate mix,and protected with a net or blanket. No 4-28 Volume 11—Construction Stormwater Pollution Prevention February 2005 iS as I BMP C125: Topsoiling Purpose To provide a suitable growth medium for final site stabilization with vegetation. While not a permanent cover practice in itself,topsoiling is an integral component of providing permanent cover in those areas where there is an unsuitable soil surface for plant growth. Native soils and disturbed soils that have been organically amended not only retain much more stormwater, but they also serve as effective biofilters for urban pollutants and, by supporting more vigorous plant growth,reduce the water, fertilizer and pesticides needed to support installed landscapes. Topsoil does not include any subsoils but only the material from the top several inches including organic debris. Conditions of • Native soils should be left undisturbed to the maximum extent Use practicable. Native soils disturbed during clearing and grading should be restored,to the maximum extent practicable,to a condition where moisture-holding capacity is equal to or better than the original site hiiter m by using , incorporatconditionsingT amendmentsscrion intocanbe on-siteet soils,no r importingon-sitenative blended 1 topsoil. • Topsoiling is a required procedure when establishing vegetation on shallow soils, and soils of critically low pH (high acid) levels. • Stripping of existing,properly functioning soil system and vegetation „•, for the purpose of topsoiling during construction is not acceptable. If an existing soil system is functioning properly it shall be preserved in its undisturbed and uncompacted condition. • Depending on where the topsoil comes from,or what vegetation was on site before disturbance, invasive plant seeds may be included and could cause problems for establishing native plants, landscaped areas, or grasses. • Topsoil from the site will contain mycorrhizal bacteria that are necessary for healthy root growth and nutrient transfer. These native mycorrhiza are acclimated to the site and will provide optimum conditions for establishing grasses. Commercially available mycorrhiza products should be used when topsoil is brought in from �.r off-site. Design and If topsoiling is to be done,the following items should be considered: •. Installation • Maximize the depth of the topsoil wherever possible to provide the Specifications maximum possible infiltration capacity and beneficial growth medium. Topsoil depth shall be at least 8 inches with a minimum d011 organic content of 10 percent dry weight and pH between 6.0 and 8.0 or matching the pH of the undisturbed soil. This can be accomplished either by returning native topsoil to the site and/or incorporating organic amendments. Organic amendments should be incorporated to a minimum 8-inch depth except where tree roots or other natural February 2005 Volume II—Construction Stormwater Pollution Prevention 4-29 air 111 features limit the depth of incorporation. Subsoils below the 12-inch depth should be scarified at least 2 inches to avoid stratified layers, where feasible. The decision to either layer topsoil over a subgrade or incorporate topsoil into the underlying layer may vary depending on the planting specified. • If blended topsoil is imported,then fines should be limited to 25 percent passing through a 200 sieve. • The final composition and construction of the soil system will result in a natural selection or favoring of certain plant species over time. For example, recent practices have shown that incorporation of topsoil may favor grasses,while layering with mildly acidic,high-carbon amendments may favor more woody vegetation. • Locate the topsoil stockpile so that it meets specifications and does not interfere with work on the site. It may be possible to locate more than one pile in proximity to areas where topsoil will be used. • Allow sufficient time in scheduling for topsoil to be spread prior to seeding, sodding,or planting. • Care must be taken not to apply to subsoil if the two soils have contrasting textures. Sandy topsoil over clayey subsoil is a particularly poor combination, as water creeps along the junction between the soil layers and causes the topsoil to slough. • If topsoil and subsoil are not properly bonded,water will not infiltrate the soil profile evenly and it will be difficult to establish vegetation. The best method to prevent a lack of bonding is to actually work the topsoil into the layer below for a depth of at least 6 inches. • Ripping or re-structuring the subgrade may also provide additional benefits regarding the overall infiltration and interflow dynamics of the soil system. ` • Field exploration of the site shall be made to determine if there is surface soil of sufficient quantity and quality to justify stripping. Topsoil shall be friable and loamy(loam, sandy loam, silt loam, sandy clay loam, clay loam). Areas of natural ground water recharge should be avoided. • Stripping shall be confined to the immediate construction area. A 4- to 6- inch stripping depth is common,but depth may vary depending on the particular soil. All surface runoff control structures shall be in - place prior to stripping. Stockpiling of topsoil shall occur in the following manner: • Side slopes of the stockpile shall not exceed 2:1. • An interceptor dike with gravel outlet and silt fence shall surround all topsoil stockpiles between October 1 and April 30. Between May 1 4-30 Volume Il— Construction Stormwater Pollution Prevention February 2005 and September 30,an interceptor dike with gravel outlet and silt fence shall be installed if the stockpile will remain in place for a longer period of time than active construction grading. • Erosion control seeding or covering with clear plastic or other mulching materials of stockpiles shall be completed within 2 days (October 1 through April 30) or 7 days (May 1 through September 30) of the formation of the stockpile. Native topsoil stockpiles shall not be covered with plastic. • Topsoil shall not be placed while in a frozen or muddy condition, when the subgrade is excessively wet,or when conditions exist that may otherwise be detrimental to proper grading or proposed sodding or seeding. • Previously established grades on the areas to be topsoiled shall be maintained according to the approved plan. • When native topsoil is to be stockpiled and reused the following should apply to ensure that the mycorrhizal bacterial,earthworms,and other beneficial organisms will not be destroyed: 1. Topsoil is to be re-installed within 4 to 6 weeks; ,rn 2. Topsoil is not to become saturated with water; 3. Plastic cover is not allowed. Maintenance • Inspect stockpiles regularly,especially after large storm events. Standards Stabilize any areas that have eroded. IS rr .rr n February 2005 Volume ll— Construction Storm water Pollution Prevention 4-31 gib BMP C140: Dust Control rrr Purpose Dust control prevents wind transport of dust from disturbed soil surfaces onto roadways,drainage ways,and surface waters. Conditions of Use • In areas (including roadways) subject to surface and air movement of dust where on-site and off-site impacts to roadways, drainage ways, or surface waters are likely. 1111 Design and • Vegetate or mulch areas that will not receive vehicle traffic. In areas Installation where planting,mulching,or paving is impractical, apply gravel or Specifications landscaping rock. is • Limit dust generation by clearing only those areas where immediate activity will take place, leaving the remaining area(s) in the original condition, if stable. Maintain the original ground cover as long as practical. • Construct natural or artificial windbreaks or windscreens. These may , be designed as enclosures for small dust sources. • Sprinkle the site with water until surface is wet. Repeat as needed. To prevent carryout of mud onto street,refer to Stabilized Construction Entrance (BMP C105). • Irrigation water can be used for dust control. Irrigation systems should es be installed as a first step on sites where dust control is a concern. • Spray exposed soil areas with a dust palliative,following the manufacturer's instructions and cautions regarding handling and application. Used oil is prohibited from use as a dust suppressant. Local governments may approve other dust palliatives such as calcium chloride or PAM. • PAM (BMP C126) added to water at a rate of 0.5 lbs.per 1,000 gallons of water per acre and applied from a water truck is more effective than water alone. This is due to the increased infiltration of +rr water into the soil and reduced evaporation. In addition, small soil particles are bonded together and are not as easily transported by wind. Adding PAM may actually reduce the quantity of water needed for Oil dust control, especially in eastern Washington. Since the wholesale cost of PAM is about$4.00 per pound,this is an extremely cost- effective dust control method. Techniques that can be used for unpaved roads and lots include: • Lower speed limits. High vehicle speed increases the amount of dust mo stirred up from unpaved roads and lots. • Upgrade the road surface strength by improving particle size, shape, and mineral types that make up the surface and base materials. rr 4-40 Volume ll-Construction Stormwater Pollution Prevention February 2005 a • Add surface gravel to reduce the source of dust emission. Limit the amount of fine particles (those smaller than .075 mm)to 10 to 20 a" percent. • Use geotextile fabrics to increase the strength of new roads or roads undergoing reconstruction. • Encourage the use of alternate,paved routes, if available. • Restrict use by tracked vehicles and heavy trucks to prevent damage to Ai road surface and base. • Apply chemical dust suppressants using the admix method, blending m, the product with the top few inches of surface material. Suppressants may also be applied as surface treatments. • Pave unpaved permanent roads and other trafficked areas. • Use vacuum street sweepers. • Remove mud and other dirt promptly so it does not dry and then turn into dust. • Limit dust-causing work on windy days. • Contact your local Air Pollution Control Authority for guidance and training on other dust control measures. Compliance with the local Air Pollution Control Authority constitutes compliance with this BMP. a Maintenance Respray area as necessary to keep dust to a minimum. Standards a a a ell February 2005 Volume II—Construction Storm water Pollution Prevention 4-41 r�r Mik BMP C150: Materials On Hand Purpose Quantities of erosion prevention and sediment control materials can be kept on the project site at all times to be used for emergency situations such as unexpected heavy summer rains. Having these materials on-site reduces the time needed to implement BMPs when inspections indicate that existing BMPs are not meeting the Construction SWPPP requirements. In addition, contractors can save money by buying some materials in bulk and storing them at their office or yard. sir Conditions of Use • Construction projects of any size or type can benefit from having materials on hand. A small commercial development project could have a roll of plastic and some gravel available for immediate protection of bare soil and temporary berm construction. A large earthwork project, such as highway construction,might have several tons of straw, several rolls of plastic, flexible pipe,sandbags, geotextile fabric and steel"T"posts. • Materials are stockpiled and readily available before any site clearing, grubbing, or earthwork begins.A large contractor or developer could keep a stockpile of materials that are available to be used on several projects. • If storage space at the project site is at a premium,the contractor could maintain the materials at their office or yard. The office or yard must be less than an hour from the project site. Design and Depending on project type, size,complexity, and length,materials and Installation quantities will vary. A good minimum that will cover numerous situations Specifications includes: Material Measure Quantity Clear Plastic,6 mil 100 foot roll 1-2 us Drainpipe,6 or 8 inch diameter 25 foot section 4-6 Sandbags,filled each 25-50 Straw Bales for mulching, approx. 50# each I0-20 Quarry Spalls ton 2-4 Washed Gravel cubic yard 2-4 Geotextile Fabric 100 foot roll 1-2 Catch Basin Inserts each 2-4 Steel "T"Posts each 12-24 Maintenance • All materials with the exception of the quarry spalls, steel"T"posts, Standards and gravel should be kept covered and out of both sun and rain. • Re-stock materials used as needed. 4-42 Volume II—Construction Stormwater Pollution Prevention February 2005 Orr r.rl BMP C151: Concrete Handling Purpose Concrete work can generate process water and slurry that contain fine particles and high pH, both of which can violate water quality standards in the receiving water. This BMP is intended to minimize and eliminate concrete process water and slurry from entering waters of the state. Conditions of Use Any time concrete is used,these management practices shall be utilized. rr Concrete construction projects include, but are not limited to,the following: • Curbs • Sidewalks • Roads • Bridges • Foundations sa • Floors • Runways Design and • Concrete truck chutes,pumps,and internals shall be washed out only Installation into formed areas awaiting installation of concrete or asphalt. Specifications • Unused concrete remaining in the truck and pump shall be returned to �rw the originating batch plant for recycling. • Hand tools including, but not limited to,screeds, shovels, rakes, floats, and trowels shall be washed off only into formed areas awaiting installation of concrete or asphalt. • Equipment that cannot be easily moved, such as concrete pavers,shall ++. only be washed in areas that do not directly drain to natural or constructed stormwater conveyances. • Washdown from areas such as concrete aggregate driveways shall not drain directly to natural or constructed stormwater conveyances. • When no formed areas are available,washwater and leftover product shall be contained in a lined container. Contained concrete shall be disposed of in a manner that does not violate groundwater or surface water quality standards. Maintenance Containers shall be checked for holes in the liner daily during concrete Standards pours and repaired the same day. am February 2005 Volume 11—Construction Stonnwater Pollution Prevention 4-43 rir BMP C152: Sawcutting and Surfacing Pollution Prevention Purpose Sawcutting and surfacing operations generate slurry and process water that contains fine particles and high pH (concrete cutting),both of which can violate the water quality standards in the receiving water. This BMP is intended to minimize and eliminate process water and slurry from entering waters of the State. Conditions of Use Anytime sawcutting or surfacing operations take place,these management practices shall be utilized. Sawcutting and surfacing operations include,but are not limited to,the following: • Sawing • Coring • Grinding • Roughening • Hydro-demolition mit • Bridge and road surfacing Design and • Slurry and cuttings shall be vacuumed during cutting and surfacing w Installation operations. Specifications • Slurry and cuttings shall not remain on permanent concrete or asphalt pavement overnight. aii • Slurry and cuttings shall not drain to any natural or constructed drainage conveyance. • Collected slurry and cuttings shall be disposed of in a manner that does not violate groundwater or surface water quality standards. gib • Process water that is generated during hydro-demolition,surface roughening or similar operations shall not drain to any natural or constructed drainage conveyance and shall be disposed of in a manner that does not violate groundwater or surface water quality standards. • Cleaning waste material and demolition debris shall be handled and disposed of in a manner that does not cause contamination of water. If the area is swept with a pick-up sweeper,the material must be hauled out of the area to an appropriate disposal site. Maintenance Continually monitor operations to determine whether slurry, cuttings,or Standards process water could enter waters of the state. If inspections show that a violation of water quality standards could occur, stop operations and NI immediately implement preventive measures such as berms, barriers, secondary containment,and vacuum trucks. Orr Mill 4-44 Volume 11—Construction StormwaterPollution Prevention February 2005 r dill BMP C153: Material Delivery, Storage and Containment AN Purpose Prevent,reduce, or eliminate the discharge of pollutants from material delivery and storage to the stormwater system or watercourses by minimizing the storage of hazardous materials onsite, storing materials in a designated area, and installing secondary containment. Conditions of Use These procedures are suitable for use at all construction sites with delivery and storage of the following materials: • Petroleum products such as fuel, oil and grease rn • Soil stabilizers and binders(e.g. Polyacrylamide) • Fertilizers,pesticides and herbicides • Detergents • Asphalt and concrete compounds • Hazardous chemicals such as acids, lime, adhesives,paints, solvents and curing compounds • Any other material that may be detrimental if released to the environment •+� Design and The following steps should be taken to minimize risk: Installation • Temporary storage area should be located away from vehicular traffic, Specifications near the construction entrance(s), and away from waterways or storm ON drains. • Material Safety Data Sheets(MSDS) should be supplied for all materials stored. Chemicals should be kept in their original labeled containers. • Hazardous material storage on-site should be minimized. • Hazardous materials should be handled as infrequently as possible. • During the wet weather season(Oct 1 —April 30), consider storing materials in a covered area. • Materials should be stored in secondary containments, such as earthen dike, horse trough,or even a children's wading pool for non-reactive materials such as detergents,oil,grease,and paints. Small amounts of material may be secondarily contained in"bus boy"trays or concrete mixing trays. • Do not store chemicals, drums,or bagged materials directly on the ground. Place these items on a pallet and, when possible, in secondary containment. February 2005 Volume 11—Construction Stormwater Pollution Prevention 4-45 irr imummorommosommonmer • If drums must be kept uncovered,store them at a slight angle to reduce ponding of rainwater on the lids to reduce corrosion.Domed plastic covers are inexpensive and snap to the top of drums,preventing water from collecting. Material Storage Areas and Secondary Containment Practices: sm • Liquids,petroleum products,and substances listed in 40 CFR Parts 110, 117, or 302 shall be stored in approved containers and drums and shall not be overfilled. Containers and drums shall be stored in al temporary secondary containment facilities. • Temporary secondary containment facilities shall provide for a spill containment volume able to contain precipitation from a 25 year,24 hour storm event,plus 10%of the total enclosed container volume of all containers, or 110%of the capacity of the largest container within its boundary,whichever is greater. • Secondary containment facilities shall be impervious to the materials stored therein for a minimum contact time of 72 hours. • Secondary containment facilities shall be maintained free of accumulated rainwater and spills. In the event of spills or leaks, accumulated rainwater and spills shall be collected and placed into mis drums.These liquids shall be handled as hazardous waste unless testing determines them to be non-hazardous. • Sufficient separation should be provided between stored containers to allow for spill cleanup and emergency response access. • During the wet weather season(Oct 1 —April 30),each secondary containment facility shall be covered during non-working days,prior to and during rain events. • Keep material storage areas clean,organized and equipped with an rrr ample supply of appropriate spill clean-up material (spill kit). • The spill kit should include,at a minimum: • 1-Water Resistant Nylon Bag • 3-Oil Absorbent Socks 3"x 4' • 2-Oil Absorbent Socks 3"x 10' org • 12-Oil Absorbent Pads 17"x19" • 1-Pair Splash Resistant Goggles "'t" • 3-Pair Nitrile Gloves • 10-Disposable Bags with Ties • Instructions Is 4-46 Volume II-Construction Storm water Pollution Prevention February 2005 Is yrrr • BMP C160: Certified Erosion and Sediment Control Lead Purpose The project proponent designates at least one person as the responsible representative in charge of erosion and sediment control (ESC), and water quality protection. The designated person shall be the Certified Erosion air and Sediment Control Lead(CESCL)who is responsible for ensuring compliance with all local, state,and federal erosion and sediment control and water quality requirements. Conditions of Use A CESCL shall be made available on projects one acre or larger that discharge stormwater to surface waters of the state art • The CESCL shall: • Have a current certificate proving attendance in an erosion and +rr sediment control training course that meets the minimum ESC training and certification requirements established by Ecology (see details below). Ecology will maintain a list of ESC training and certification providers at: www.ecy.wa.gov/programs/wq/stormwater. OR • Be a Certified Professional in Erosion and Sediment Control (CPESC);for additional information go to: www.cpesc.net Specifications • Certification shall remain valid for three years. • The CESCL shall have authority to act on behalf of the contractor or developer and shall be available, on call, 24 hours per day throughout the period of construction. • The Construction SWPPP shall include the name, telephone number, fax number,and address of the designated CESCL. • A CESCL may provide inspection and compliance services for multiple construction projects in the same geographic region. Duties and responsibilities of the CESCL shall include,but are not limited "`m to the following: • Maintaining permit file on site at all times which includes the SWPPP ,,,i and any associated permits and plans. • Directing BMP installation, inspection,maintenance, modification, and removal. • Updating all project drawings and the Construction SWPPP with changes made. """ February 2005 Volume II— Construction Stormwater Pollution Prevention 4-47 drimmoorr • Keeping daily logs,and inspection reports. Inspection reports should include: ,rr •Inspection date/time. •Weather information; general conditions during inspection and No approximate amount of precipitation since the last inspection, •A summary or list of all BMPs implemented, including observations of all erosion/sediment control structures or - practices. The following shall be noted: 1) Locations of BMPs inspected, 2)Locations of BMPs that need maintenance, 3) Locations of BMPs that failed to operate as designed or intended, and 4)Locations of where additional or different BMPs are mu required. •Visual monitoring results, including a description of discharged stormwater. The presence of suspended sediment,turbid water,discoloration,and oil sheen shall be noted, as applicable. •Any water quality monitoring performed during inspection. •General comments and notes, including a brief description of any BMP repairs, maintenance or installations made as a result of the inspection. rr • Facilitate, participate in,and take corrective actions resulting from inspections performed by outside agencies or the owner. 11111 iN ur 4-48 Volume ll—Construction Stormwater Pollution Prevention February 2005 1 Minimum Requirements for ESC Training and Certification Courses General Requirements 1. The course shall teach the construction stormwater pollution prevention guidance provided in the most recent version of: a. The Washington State Dept.of Ecology Stormwater Management Manual for Western Washington, b. Other equivalent stormwater management manuals approved by Ecology. 2. Upon completion of course,each attendee shall receive documentation of certification, including, at a minimum, a wallet-sized card that certifies completion of the course. Certification shall remain valid for three years. Recertification may be obtained by completing the 8-hour refresher course or by taking the initial 16-hour training course again. 3. The initial certification course shall be a minimum of 16 hours (with a reasonable time allowance for lunch,breaks,and travel to and from field)and include a field element and test. .rr a. The field element must familiarize students with the proper installation, maintenance and inspection of common erosion and sediment control BMPs including,but not limited to,blankets, check dams, silt fence, straw mulch, plastic,and seeding. b. The test shall be open book and a passing score is not required for certification. Upon completion of the test,the correct answers shall be provided and discussed. 4. The refresher course shall be a minimum of 8 hours and include a test. a. The refresher course shall include: i. Applicable updates to the Stormwater Management Manual that is used to teach the course, including new or updated BMPs;and ii. Applicable changes to the NPDES General Permit for Construction Activities. "ui b. The refresher course test shall be open book and a passing score is not required for certification. Upon completion of the test,the correct answers shall be provided and discussed. c. The refresher course may be taught using an alternative format(e.g. internet, CD ROM,etc.) if the module is approved by Ecology. Required Course Elements 1. Erosion and Sedimentation Impacts a. Examples/Case studies February 2005 Volume II—Construction Stormwater Pollution Prevention 4-49 err 4111111111111111111111111111111111, 1101 2. Erosion and Sedimentation Processes a. Definitions b. Types of erosion c. Sedimentation i. Basic settling concepts ii. Problems with clays/turbidity 3. Factors Influencing Erosion Potential a. Soil b. Vegetation c. Topography d. Climate lie 4. Regulatory Requirements a. NPDES - Construction Stormwater General Permit b. Local requirements and permits c. Other regulatory requirements 5. Stormwater Pollution Prevention Plan (SWPPP) a. SWPPP is a living document should be revised as necessary b. 12 Elements of a SWPPP;discuss suggested BMPs(with examples) 1. Mark Clearing Limits 2. Establish Construction Access 3. Control Flow Rates 4. Install Sediment Controls 5. Stabilize Soils 6. Protect Slopes 7. Protect Drain Inlets 8. Stabilize Channels and Outlets 9. Control Pollutants 10. Control De-watering 11. Maintain BMPs 12. Manage the Project IMO 6. Monitoring/Reporting/Recordkeeping a. Site inspections/visual monitoring i. Disturbed areas ii. BMPs iii. Stormwater discharge points b. Water quality sampling/analysis i. Turbidity ii. pH c. Monitoring frequency i. Set by NPDES permit ii. Inactive sites -reduced frequency 4-50 Volume II—Construction Stormwater Pollution Prevention February 2005 d. Adaptive Management i. When monitoring indicates problem,take appropriate action (e.g. install/maintain BMPs) ii. Document the corrective action(s) in SWPPP e. Reporting I. Inspection reports/checklists ii. Discharge Monitoring Reports(DMR) iii. Non-compliance notification Instructor Qualifications 1. Instructors must be qualified to effectively teach the required course elements. 2. At a minimum, instructors must have: srr a. Current certification as a Certified Professional in Erosion and Sediment Control (CPESC), or b. Completed a training program for teaching the required course elements, or c. The academic credentials and instructional experience necessary for teaching the required course elements. mi 3. Instructors must demonstrate competent instructional skills and knowledge of the applicable subject matter. de Mil ■r rr February 2005 Volume II—Construction Stormwater Pollution Prevention 4-51 rr arr11rrrr111rr 11111 4.2 Runoff Conveyance and Treatment BMPs BMP C200: Interceptor Dike and Swale Purpose Provide a ridge of compacted soil, or a ridge with an upslope swale, at the top or base of a disturbed slope or along the perimeter of a disturbed construction area to convey stormwater. Use the dike and/or swale to intercept the,runoff from unprotected areas and direct it to areas where erosion can be controlled. This can prevent storm runoff from entering the , work area or sediment-laden runoff from leaving the construction site. Conditions of Use Where the runoff from an exposed site or disturbed slope must be conveyed to an erosion control facility which can safely convey the stormwater. m • Locate upslope of a construction site to prevent runoff from entering disturbed area. 1111 • When placed horizontally across a disturbed slope, it reduces the amount and velocity of runoff flowing down the slope. • Locate downslope to collect runoff from a disturbed area and direct it to a sediment basin. Design and • Dike and/or swale and channel must be stabilized with temporary or Installation permanent vegetation or other channel protection during construction. Specifications • Channel requires a positive grade for drainage; steeper grades require channel protection and check dams. • Review construction for areas where overtopping may occur. • Can be used at top of new fill before vegetation is established. • May be used as a permanent diversion channel to carry the runoff. • Sub-basin tributary area should be one acre or less. • Design capacity for the peak flow from a 10-year,24-hour storm, assuming a Type lA rainfall distribution,for temporary facilities. Alternatively, use 1.6 times the 10-year, 1-hour flow indicated by an approved continuous runoff model. For facilities that will also serve on a permanent basis, consult the local government's drainage - requirements. Interceptor dikes shall meet the following criteria: Top Width 2 feet minimum. Height 1.5 feet minimum on berm. Side Slope 2:1 or flatter. - Grade Depends on topography, however, dike system minimum is 0.5%,maximum is 1%. Compaction Minimum of 90 percent ASTM D698 standard proctor. sii Mir February 2005 Volume II—Construction Storm water Pollution Prevention 4-57 Horizontal g p Spacing of Interceptor Dikes: p Average Slope Slope Percent Flowpath Length 20H:l V or less 3-5% 300 feet (10 to 20)H:1 V 5-10% 200 feet (4 to 10)H:1V 10-25% 100 feet (2 to 4)H:1 V 25-50% 50 feet Stabilization depends on velocity and reach ✓w Slopes<5% Seed and mulch applied within 5 days of dike construction (see BMP C121, Mulching). Slopes 5 -40% Dependent on runoff velocities and dike materials. au Stabilization should be done immediately using either sod or riprap or other measures to avoid erosion. • The upslope side of the dike shall provide positive drainage to the dike err outlet. No erosion shall occur at the outlet. Provide energy dissipation measures as necessary. Sediment-laden runoff must be released through a sediment trapping facility. • Minimize construction traffic over temporary dikes. Use temporary cross culverts for channel crossing. rr Interceptor swales shall meet the following criteria: Bottom Width 2 feet minimum;the bottom shall be level. Depth 1-foot minimum. «w Side Slope 2:1 or flatter. Grade Maximum 5 percent,with positive drainage to a suitable outlet(such as a sediment pond). Stabilization Seed as per BMP C120, Temporary and Permanent Seeding,or BMP C202, Channel Lining, 12 inches thick of riprap pressed into the bank and extending ,,, at least 8 inches vertical from the bottom. • Inspect diversion dikes and interceptor swales once a week and after every rainfall. Immediately remove sediment from the flow area. .■ • Damage caused by construction traffic or other activity must be repaired before the end of each working day. Check outlets and make timely repairs as needed to avoid gully formation. When ""' the area below the temporary diversion dike is permanently stabilized, remove the dike and fill and stabilize the channel to blend with the natural surface. MO 111 4-58 Volume 11—Construction Stormwater Pollution Prevention February 2005 rr BMP C207: Check Dams Purpose Construction of small dams across a swale or ditch reduces the velocity of concentrated flow and dissipates energy at the check dam. Conditions of Use Where temporary channels or permanent channels are not yet vegetated, rrri channel lining is infeasible, and velocity checks are required. • Check dams may not be placed in streams unless approved by the State Department of Fish and Wildlife. Check dams may not be placed in wetlands without approval from a permitting agency. • Check dams shall not be placed below the expected backwater from any salmonid bearing water between October 1 and May 31 to ensure that there is no loss of high flow refuge habitat for overwintering juvenile salmonids and emergent salmonid fry. Design and Whatever material is used,the dam should form a triangle when viewed Installation from the side. This prevents undercutting as water flows over the face of Specifications the dam rather than falling directly onto the ditch bottom. Check dams in association with sumps work more effectively at slowing flow and retaining sediment than just a check dam alone. A deep sump should be provided immediately upstream of the check dam. • In some cases, if carefully located and designed, check dams can remain as permanent installations with very minor regrading. They may be left as either spillways, in which case accumulated sediment would be graded and seeded, or as check dams to prevent further sediment from leaving the site. • Check dams can be constructed of either rock or pea-gravel filled bags. Numerous new products are also available for this purpose. They tend to be re-usable,quick and easy to install,effective, and cost efficient. • Check dams should be placed perpendicular to the flow of water. • The maximum spacing between the dams shall be such that the toe of aii the upstream dam is at the same elevation as the top of the downstream dam. • Keep the maximum height at 2 feet at the center of the dam. rr • Keep the center of the check dam at least 12 inches lower than the outer edges at natural ground elevation. • Keep the side slopes of the check dam at 2:1 or flatter. • Key the stone into the ditch banks and extend it beyond the abutments a minimum of 18 inches to avoid washouts from overflow around the dam. ,rr February 2005 Volume II—Construction Stormwater Pollution Prevention 4-75 rw • Use filter fabric foundation under a rock or sand bag check dam. If a blanket ditch liner is used,this is not necessary. A piece of organic or rr synthetic blanket cut to fit will also work for this purpose. • Rock check dams shall be constructed of appropriately sized rock. 4111 The rock must be placed by hand or by mechanical means (no dumping of rock to form dam)to achieve complete coverage of the ditch or swale and to ensure that the center of the dam is lower than the edges. The rock used must be large enough to stay in place given the expected design flow through the channel. • In the case of grass-lined ditches and swales, all check dams and accumulated sediment shall be removed when the grass has matured sufficiently to protect the ditch or swale-unless the slope of the swale is greater than 4 percent. The area beneath the check dams shall be seeded and mulched immediately after dam removal. • Ensure that channel appurtenances, such as culvert entrances below check dams,are not subject to damage or blockage from displaced es stones. Figure 4.13 depicts a typical rock check dam. Maintenance Check dams shall be monitored for performance and sediment Standards accumulation during and after each runoff producing rainfall. Sediment shall be removed when it reaches one half the sump depth. • Anticipate submergence and deposition above the check dam and erosion from high flows around the edges of the darn. • If significant erosion occurs between dams, install a protective riprap liner in that portion of the channel. rri +.r .�r 4-76 Volume II—Construction Storm water Pollution Prevention February 2005 rir r1.... ■w lit View Looking Upstream I — A 18"(0.5m) -�- to 1 I. r 12"(150mm) {11'11;1=,i�1 A rt /\%�//�///�A � o :Q96M//.00� t °i//'; 24"(0.6m)• rrr, 90 NOTE: °O� a C o 0.o caP i Key stone into channel banks and •`// ///7 t '') '/ extend it beyond the abutments a \'k','" •`\\/�\ minimum of 18"(0.5m)to prevent i,A ilik flow around dam. Section A - A ` FLOW i ,, '--------- 24"(0.6m) , ? o do rrr �v V OO;Qo 4 8). /, Q p°uoOO oe \,\\�\\i\%/\\\\\\// /\\/\\j\/ ---- "�' -- 8'(2.4m) imy Spacing Between Check Dams .o 'L'=the distance such that points'A'and 'B'are of equal elevation. 'L' j '' 40 ob.� f POINT'A' �POINT'B' MO \ \/\/\ \ . \\ \/\\/\ \ \ Imo /\/i\//,. NOT TO SCALE aa Figure 4.13-Check Dams ma Oki Oki Ili February 2005 Volume Il-Construction Stormwater Pollution Prevention 4-77 ea 1 BMP C209: Outlet Protection Purpose Outlet protection prevents scour at conveyance outlets and minimizes the potential for downstream erosion by reducing the velocity of concentrated stormwater flows. Conditions of use Outlet protection is required at the outlets of all ponds,pipes, ditches, or other conveyances,and where runoff is conveyed to a natural or manmade drainage feature such as a stream,wetland, lake, or ditch. Design and The receiving channel at the outlet of a culvert shall be protected from Installation erosion by rock lining a minimum of 6 feet downstream and extending up Specifications the channel sides a minimum of I—foot above the maximum tailwater elevation or 1-foot above the crown,whichever is higher. For large pipes (more than 18 inches in diameter),the outlet protection lining of the channel is lengthened to four times the diameter of the culvert. • Standard wingwalls, and tapered outlets and paved channels should also be considered when appropriate for permanent culvert outlet protection. (See WSDOT Hydraulic Manual, available through WSDOT Engineering Publications). • Organic or synthetic erosion blankets,with or without vegetation, are usually more effective than rock, cheaper, and easier to install. Materials can be chosen using manufacturer product specifications. ASTM test results are available for most products and the designer can choose the correct material for the expected flow. • With low flows, vegetation(including sod)can be effective. • The following guidelines shall be used for riprap outlet protection: 1. If the discharge velocity at the outlet is less than 5 fps(pipe slope less than 1 percent), use 2-inch to 8-inch riprap. Minimum thickness is 1-foot. 2. For 5 to 10 fps discharge velocity at the outlet(pipe slope less than 3 percent),use 24-inch to 4-foot riprap. Minimum thickness is 2 feet. 3. For outlets at the base of steep slope pipes(pipe slope greater than 10 percent), an engineered energy dissipater shall be used. • Filter fabric or erosion control blankets should always be used under riprap to prevent scour and channel erosion. • New pipe outfalls can provide an opportunity for low-cost fish habitat improvements. For example,an alcove of low-velocity water can be created by constructing the pipe outfall and associated energy dissipater back from the stream edge and digging a channel, over- all widened to the upstream side, from the outfall. Overwintering juvenile and migrating adult salmonids may use the alcove as shelter during 4-80 Volume II—Construction Stormwater Pollution Prevention February 2005 INI high flows. Bank stabilization, bioengineering, and habitat features may be required for disturbed areas. See Volume V for more mil information on outfall system design. Maintenance • Inspect and repair as needed. Standards • Add rock as needed to maintain the intended function. • Clean energy dissipater if sediment builds up. rrr NW OP February 2005 Volume 11—Construction Storm water Pollution Prevention 4-81 BMP C220: Storm Drain Inlet Protection Purpose To prevent coarse sediment from entering drainage systems prior to permanent stabilization of the disturbed area. Conditions of Use Where storm drain inlets are to be made operational before permanent stabilization of the disturbed drainage area. Protection should be provided for all storm drain inlets downslope and within 500 feet of a disturbed or construction area, unless the runoff that enters the catch basin will be conveyed to a sediment pond or trap. Inlet protection may be used anywhere to protect the drainage system. It is Iikely that the drainage system will still require cleaning. Table 4.9 lists several options for inlet protection. All of the methods for storm drain inlet protection are prone to plugging and require a high frequency of maintenance. Drainage areas should be limited to 1 acre or less. Emergency overflows may be required where stormwater ponding would cause a hazard. if an emergency overflow is provided, additional end-of-pipe treatment may be required. Table 4.9 Storm Drain Inlet Protetion Applicable for Type of Inlet Emergency Paved/Earthen Protection Overflow Surfaces Conditions of Use Drop Inlet Protection Excavated drop inlet Yes, Earthen Applicable for heavy flows. Easy protection temporary to maintain. Large area flooding will Requirement: 30'X 30'/acre occur Block and gravel drop Yes Paved or Earthen Applicable for heavy concentrated inlet protection flows. Will not pond. Gravel and wire drop No Applicable for heavy concentrated inlet protection flows. Will pond. Can withstand traffic. Catch basin filters Yes Paved or Earthen Frequent maintenance required. rr Curb Inlet Protection Curb inlet protection Small capacity Paved Used for sturdy, more compact with a wooden weir overflow installation. Block and gravel curb Yes Paved Sturdy, but limited filtration. rim inlet protection Culvert Inlet Protection Culvert inlet sediment 18 month expected life. trap dal �r 4-82 Volume It—Construction Stormwater Pollution Prevention February 2005 rrr eft Design and Excavated Drop Inlet Protection -An excavated impoundment around the NMI Installation storm drain, Sediment settles out of the stormwater prior to entering the Specifications storm drain. • Depth 1-2 ft as measured from the crest of the inlet structure. • Side Slopes of excavation no steeper than 2:1. • Minimum volume of excavation 35 cubic yards. • • Shape basin to fit site with longest dimension oriented toward the Iongest inflow area, • Install provisions for draining to prevent standing water problems. • Clear the area of all debris. • Grade the approach to the inlet uniformly. • Drill weep holes into the side of the inlet. • Protect weep holes with screen wire and washed aggregate. • Seal weep holes when removing structure and stabilizing area. • It may be necessary to build a temporary dike to the down slope side of the structure to prevent bypass flow. Block and Gravel Filter-A barrier formed around the storm drain inlet with standard concrete blocks and gravel. See Figure 4.14. • Height 1 to 2 feet above inlet. • Recess the first row 2 inches into the ground for stability. • Support subsequent courses by placing a 2x4 through the block opening. • Do not use mortar. • Lay some blocks in the bottom row on their side for dewatering the pool. • Place hardware cloth or comparable wire mesh with 1/2-inch openings over all block openings. • Place gravel just below the top of blocks on slopes of 2:1 or flatter. • An alternative design is a gravel donut. • Inlet slope of 3:1. • • Outlet slope of 2:1. • 1-foot wide level stone area between the structure and the inlet. • Inlet slope stones 3 inches in diameter or larger. • Outlet slope use gravel ''Y2-to 1/4-inch at a minimum thickness of 1-foot. February 2005 Volume II-Construction Stormwater Pollution Prevention 4-83 im i do Plan View A Drain eQqoc4Or)°o�, ,� o°QO ff. >, ' „tr Grate \d . :�o ,,0 Co��crOo',o?o_�cyO� gc4 [l, )0_. 'd;)o0-,,ram,°�.�OOU-,.0 G AO C- :C'.94�C\ ,�`(400t,�J.. `}�h oo no \ - '�'. ' :?o Block n�jr�`,�)� 0 .606..,... �, Gravel r• r'� `la o° r� '� Backfill �,qQ' <5 _ VOc- 9 Cgp � °r�G('>00?OL_)�,0—,..c....)• rQ. a Section A - A Concrete Block Wire Screen or Filter Fabric Gravel Backfill Overflow urr = ' Water Pending Height ° ����.t.... -o JL ,*o, .. Water l ItlA1mma"'vC ,Oo 4, �'//V//A/OVA//V/, Drop Inlet /VA//A/ /VA/ \//\//,' ////\/\ IS Notes: 1.Drop inlet sediment barriers are to be used for small,nearly level drainage areas.(less than 5%) 2.Excavate a basin of sufficient size adjacent to the drop inlet. 3.The top of the structure(ponding height)must be well below the ground elevation downslope to prevent a111 runoff from bypassing the inlet. A temporary dike may be necessary on the dowslope side of the structure. Figure 4.14—Block and Gravel Filter r. Gravel and Wire Mesh Filter-A gravel barrier placed over the top of the inlet. This structure does not provide an overflow. • Hardware cloth or comparable wire mesh with '/2-inch openings. am • Coarse aggregate. • Height 1-foot or more, 18 inches wider than inlet on all sides. a • Place wire mesh over the drop inlet so that the wire extends a . minimum of i-foot beyond each side of the inlet structure. in • If more than one strip of mesh is necessary, overlap the strips. • Place coarse aggregate over the wire mesh. ,, •• The depth of the gravel should be at least 12 inches over the entire inlet opening and extend at least 18 inches on all sides. r. 4-84 Volume 11— Construction Stormwater Pollution Prevention February 2005 do wrt is Catchbasin Filters- Inserts should be designed by the manufacturer for use at construction sites. The limited sediment storage capacity increases the amount of inspection and maintenance required, which may be daily for heavy sediment loads. The maintenance requirements can be reduced by combining a catchbasin filter with another type of inlet protection. This type of inlet protection provides flow bypass without overflow and therefore may be a better method for inlets located along active rights-of- way. • 5 cubic feet of storage. • Dewatering provisions. sia • High-flow bypass that will not clog under normal use at a construction site. • The catchbasin filter is inserted in the catchbasin just below the grating. Curb Inlet Protection with Wooden Weir—Barrier formed around a curb inlet with a wooden frame and gravel. UI • Wire mesh with %2-inch openings. • Extra strength filter cloth. • Construct a frame. • Attach the wire and filter fabric to the frame. • Pile coarse washed aggregate against wire/fabric. • Place weight on frame anchors. "' Block and Gravel Curb Inlet Protection—Barrier formed around an inlet with concrete blocks and gravel. See Figure 4.14. • Wire mesh with '/2-inch openings. • Place two concrete blocks on their sides abutting the curb at either side of the inlet opening. These are spacer blocks. asat • Place a 2x4 stud through the outer holes of each spacer block to align the front blocks. rrr • Place blocks on their sides across the front of the inlet and abutting the spacer blocks. • Place wire mesh over the outside vertical face. • Pile coarse aggregate against the wire to the top of the barrier. Curb and Gutter Sediment Barrier—Sandbag or rock berm (riprap and MO aggregate) 3 feet high and 3 feet wide in a horseshoe shape. See Figure 4.16. • Construct a horseshoe shaped berm, faced with coarse aggregate if using riprap, 3 feet high and 3 feet wide,at least 2 feet from the inlet. • Construct a horseshoe shaped sedimentation trap on the outside of the berm sized to sediment trap standards for protecting a culvert inlet. February 2005 Volume ll—Construction Storm wafer Pollution Prevention 4-85 UI rrr rw Maintenance • Catch basin filters should be inspected frequently, especially after Standards storm events. If the insert becomes clogged, it should be cleaned or replaced. • For systems using stone filters: If the stone filter becomes clogged with sediment,the stones must be pulled away from the inlet and cleaned or replaced. Since cleaning of gravel at a construction site may be difficult, an alternative approach would be to use the clogged stone as fill and put fresh stone around the inlet. • Do not wash sediment into storm drains while cleaning. Spread all excavated material evenly over the surrounding land area or stockpile iss and stabilize as appropriate. NM WO rr WM NM 4-86 Volume II—Construction Storm water Pollution Prevention February 2005 rr err ill Plan View iii cBack of Sidewalk A Catch Basin Nil ill 2x4 Wood Stud Back of Curb _ Concrete Block Nil Curb Inlet 6 o o n Ro.• % iii :I 4 j ae.e, •400 000 �j,-, oqo oa O`8�4 , •�•• ''� :..Oa p4 O� :•p•;..,y.d:p• 04..13 r`\o�p� •o�,pp�,t,�� p•0•,�\A.��• p• qo Pa,�O4p°qes a0. 1' g4�apP�QSCo5i ,,qPiN, 4P p5 • 9oP•4•.9 °q0o• 62 �q�•p ,•o'a�„»�i:��0;,,,:q ab_ g,4 W :O?p• Illi Wire Screen •r Filter Fabric A.--- Concrete Block Section A - A 3/4"Drain Gravel (20mm) 3/4"Drain Gravel (20mm) go Ponding Height Concrete Block rv-erfl siii Curb Inlet \ \\ aii \\ 4 Wood Stud Catch Basin /' Oil (100x50 Timber Stud) \� \/ ill NOTES: 1.Use block and gravel type sediment barrier when curb inlet is located in gently sloping street segment, where water can pond and allow sediment to separate from runoff. 2. Barrier shall allow for overflow from severe storm event. 3.Inspect barriers and remove sediment after each storm event. Sediment and gravel must be removed NM from the traveled way immediately. Figure 4.15—Block and Gravel Curb Inlet Protection no w February 2005 Volume 11—Construction Stowater Pollution Prevention 4-87 rm No rr Plan View Back of Sidewalk Burlap Sacks to Catch Basin Overlap onto Curb Curb Inlet fBack of Curb =IN RUNOFF _ i•I�I�i�l�l MIIIIiI•iII111111111=i=11i am = Il 11=If•l•1111l1•11iMI RUNOFF SPILLWAY if ,111•l•111,111111i=1l1Ml rr� � 41 ' � Gravel Filled Sandbags Stacked Tightly rr NOTES: 1.Place curb type sediment barriers on gently sloping street segments,where water can pond and allow sediment to separate from runoff. eta 2. Sandbags of either burlap or woven 'geotextile'fabric,are filled with gravel,layered and packed tightly. 3.Leave a one sandbag gap in the top row to provide a spillway for overflow. 4.Inspect barriers and remove sediment after each storm event.Sediment and gravel must be removed from the traveled way immediately. Figure 4.16—Curb and Gutter Barrier ilia 4-88 Volume II—Construction Stormwater Pollution Prevention February 2005 awarrilisiliflasserirmailwArlair tier BMP C233: Silt Fence .Iw Purpose Use of a silt fence reduces the transport of coarse sediment from a construction site by providing a temporary physical barrier to sediment and reducing the runoff velocities of overland flow. See Figure 4.19 for details on silt fence construction. Conditions of Use Silt fence may be used downslope of all disturbed areas. • Silt fence is not intended to treat concentrated flows,nor is it intended to treat substantial amounts of overland flow. Any concentrated flows must be conveyed through the drainage system to a sediment pond. The only circumstance in which overland flow can be treated solely by a silt fence,rather than by a sediment pond, is when the area draining to the fence is one acre or less and flow rates are less than 0.5 cfs. • Silt fences should not be constructed in streams or used in V-shaped ditches. They are not an adequate method of silt control for anything deeper than sheet or overland flow. Joints in filter fabric shall be spliced at posts.Use staples,wire rings or 2"x2"by 14 Ga.wire or equivalent to attach fabric to posts equivalent,if standard Inn strength fabric usedas [:[: m::::a:a•°l:r°.a:::: I Filter fabric I i tint::: ail::;::r N u HIh nutf 1 p �1-1=;;IFIL'Ltil,,�i�iim,,IT� I_.u�,.�II=i��7i I 6'max — — I I "'I-- l iir a Minimum 4"x4"trench J I Backfill trench with native soil litli Post spacing may be increased or 3!4"-1.5"washed gravel to 8'if wire backing is used 2"x2"wood posts,steel fence +t posts,or equivalent is Figure 4.19—Silt Fence Design and • Drainage area of 1 acre or less or in combination with sediment basin Installation in a larger site. Specifications • Maximum slope steepness(normal (perpendicular)to fence line) 1:1. 1116 • Maximum sheet or overland flow path length to the fence of 100 feet. • No flows greater than 0.5 cfs. • The geotextile used shall meet the following standards. All geotextile properties listed below are minimum average roll values (i.e.,the test result for any sampled roll in a lot shall meet or exceed the values shown in Table 4.10): 4-94 Volume lI— Construction Stormwater Pollution Prevention February 2005 S Table 4.10 Geotextlle Standards .�r Polymeric Mesh AOS 0.60 mm maximum for slit film wovens(#30 sieve). 0.30 (ASTM D4751) mm maximum for all other geotextile types(#50 sieve). 0.15 mm minimum for all fabric types(#100 sieve). are Water Permittivity 0.02 sec"' minimum (ASTM D4491) Grab Tensile Strength 180 lbs.Minimum for extra strength fabric. (ASTM D4632) 100 lbs minimum for standard strength fabric. Grab Tensile Strength 30%maximum (ASTM D4632) arr Ultraviolet Resistance 70%minimum (ASTM D4355) • Standard strength fabrics shall be supported with wire mesh, chicken wire, 2-inch x 2.-inch wire, safety fence, or jute mesh to increase the strength of the fabric. Silt fence materials are available that have synthetic mesh backing attached. • Filter fabric material shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of six months of expected usable construction life at a temperature range of 0°F. to 120°F. • 100 percent biodegradable silt fence is available that is strong, long lasting,and can be left in place after the project is completed, if permitted by local regulations. • Standard Notes for construction plans and specifications follow. Refer to Figure 4.19 for standard silt fence details. The contractor shall install and maintain temporary silt fences at the locations shown in the Plans. The silt fences shall be constructed in the areas of clearing, grading, or drainage prior to starting those activities. A silt fence shall not be considered temporary if the silt fence must function beyond the life of the contract. The silt fence shall prevent soil carried by runoff water from going beneath,through, or over the top of the silt fence, but shall allow the water to pass through the fence. aar The minimum height of the top of silt fence shall be 2 feet and the maximum height shall be 2% feet above the original ground surface. rr The geotextile shall be sewn together at the point of manufacture,or at an approved location as determined by the Engineer, to form geotextile lengths as required. All sewn seams shall be located at a support post. Alternatively, two sections of silt fence can be overlapped,provided the Contractor can demonstrate, to the satisfaction of the Engineer,that the overlap is long enough and that the adjacent fence sections are WOclose enough together to prevent silt laden water from escaping through the fence at the overlap. a• February 2005 Volume II--Construction Stormwater Pollution Prevention 4-95 The geotextile shall be attached on the up-slope side of the posts and support system with staples,wire, or in accordance with the manufacturer's recommendations. The geotextile shall be attached to the posts in a manner that reduces the potential for geotextile tearing at the staples,wire,or other connection device. Silt fence back-up support for the geotextile in the form of a wire or plastic mesh is dependent on the properties of the geotextile selected for use. If wire or plastic back-up mesh is used,the mesh shall be fastened securely to the up-slope of the posts with the geotextile being up-slope of the mesh back-up support. The geotextile at the bottom of the fence shall be buried in a trench to lb a minimum depth of 4 inches below the ground surface. The trench shall be backfilled and the soil tamped in place over the buried portion of the geotextile, such that no flow can pass beneath the fence and scouring can not occur. When wire or polymeric back-up support mesh is used,the wire or polymeric mesh shall extend into the trench a minimum of 3 inches. The fence posts shall be placed or driven a minimum of 18 inches, A minimum depth of 12 inches is allowed if topsoil or other soft subgrade soil is not present and a minimum depth of 18 inches cannot , be reached. Fence post depths shall be increased by 6 inches if the fence is located on slopes of 3:1 or steeper and the slope is perpendicular to the fence. If required post depths cannot be obtained, the posts shall be adequately secured by bracing or guying to prevent overturning of the fence due to sediment loading. Silt fences shall be located on contour as much as possible, except at aim the ends of the fence,where the fence shall be turned uphill such that the silt fence captures the runoff water and prevents water from flowing around the end of the fence. is If the fence must cross contours,with the exception of the ends of the fence, gravel check dams placed perpendicular to the back of the fence shall be used to minimize concentrated flow and erosion along the back of the fence. The gravel check dams shall be approximately 1- foot deep at the back of the fence. It shall be continued perpendicular to the fence at the same elevation until the top of the check dam intercepts the ground surface behind the fence. The gravel check dams shall consist of crushed surfacing base course,gravel backfill for walls, or shoulder ballast. The gravel check dams shall be located wr every 10 feet along the fence where the fence must cross contours. The slope of the fence line where contours must be crossed shall not be steeper than 3:1. 111 Wood, steel or equivalent posts shall be used. Wood posts shall have minimum dimensions of 2 inches by 2 inches by 3 feet minimum length, and shall be free of defects such as knots, splits, or gouges. mu 4-96 Volume I!—Construction Stormwater Pollution Prevention February 2005 dig rn Steel posts shall consist of either size No. 6 rebar or larger,ASTM A 120 steel pipe with a minimum diameter of 1-inch,U, T, L,or C shape steel posts with a minimum weight of 1.35 lbs./ft. or other steel posts having equivalent strength and bending resistance to the post sizes listed. The spacing of the support posts shall be a maximum of 6 feet. +rr Fence back-up support, if used, shall consist of steel wire with a maximum mesh spacing of 2 inches, or a prefabricated polymeric mesh. The strength of the wire or polymeric mesh shall be equivalent to or greater than 180 lbs. grab tensile strength. The polymeric mesh must be as resistant to ultraviolet radiation as the geotextile it supports. •■ • Silt fence installation using the slicing method specification details follow. Refer to Figure 4.20 for slicing method details. The base of both end posts must be at least 2 to 4 inches above the top "•' of the silt fence fabric on the middle posts for ditch checks to drain properly. Use a hand level or string level, if necessary,to mark base points before installation. Install posts 3 to 4 feet apart in critical retention areas and 6 to 7 feet apart in standard applications. Install posts 24 inches deep on the downstream side of the silt fence, and as close as possible to the fabric,enabling posts to support the fabric from upstream water pressure. Install posts with the nipples facing away from the silt fence fabric. Attach the fabric to each post with three ties, all spaced within the top 8 inches of the fabric. Attach each tie diagonally 45 degrees through the fabric,with each puncture at least 1 inch vertically apart. In addition,each tie should be positioned to hang on a post nipple when tightening to prevent sagging. ell Wrap approximately 6 inches of fabric around the end posts and secure with 3 ties. No more than 24 inches of a 36-inch fabric is allowed above ground level. ,,,• The rope lock system must be used in all ditch check applications. The installation should be checked and corrected for any deviation before compaction. Use a flat-bladed shovel to tuck fabric deeper into �+• the ground if necessary. Compaction is vitally important for effective results. Compact the soil immediately next to the silt fence fabric with the front wheel of the tractor, skid steer, or roller exerting at least 60 pounds per square inch. Compact the upstream side first and then each side twice for a total of four trips. dia February 2005 Volume II—Construction Stormwater Pollution Prevention 4-97 drriitttr III ■i • Any damage shall be repaired immediately. Maintenance • If concentrated flows are evident uphill of the fence, they must be at Standards intercepted and conveyed to a sediment pond. • It is important to check the uphill side of the fence for signs of the fence clogging and acting as a barrier to flow and then causing mi channelization of flows parallel to the fence. If this occurs,replace the fence or remove the trapped sediment. • Sediment deposits shall either be removed when the deposit reaches Ill approximately one-third the height of the silt fence,or a second silt fence shall be installed. • If the filter fabric (geotextile)has deteriorated due to ultraviolet is breakdown, it shall be replaced. bonding height POET SPACING: meta.24' 7'mew on open runs A I 4'max.en pooling areas Top of Febdc mezesril ,rrrrriFfl Boil Attach tondo b 1 tomato r: uome side et poet . ' :_too 8' 2 i \ PLOW—« a� SG PLO orlon over sasirsire et POST RPPTNi / • r ►nt tones S to d limp b As much below pround - with devise exstlby i se bade above pound - f{ a0 ps,1.or emir ,lf i ,r ,Ologonet allat<Mrrs . 100%romps _i 1011%compaction - douhfettYeiiglh. .t? i \V\V\�� �.\\�\•\\/N\\ 4 E+ j a z; ATTACHMENT DI1MS: '.'' : /t/ � \� \��\ •Gather tepee a ports,'needed, \\\\\\ i�\ •ldae three ties pet poss.ciwihin top 11*of%ee. . atie \� \\/\//\�/��\ •pavilion each tie dia9on•7y.p ig holpswrtically, 'Z44 �j\ •Many•pch tie art a pay nipple end MOM yeti No more than 240 of a 38"fabric line cabin ties isnwl w ewt who. ! is allowed above ground. , :,. • Roll of alit fence vaisnimi Oppration Post ni iik....N. .....itiii0s.illigigie Insteriect eft* compaction MINTMEINIIIIONW;II^ 1; fablc F Voi 'I*" Sit Fenceiflatilei ill r 4 t '/. 's- i' r 'd' rH{0'•3 •4.4mod 'tr' ¢ * \"�1\\. 7, o / li 4*C? 12OQ'3Q0Mi 3 \T4`��� �yo li f •i f I 1 CFp:m: t t \\I,1„\\",\`vy� 4,, r 0 IfoNmntsl at lsel point Slicing blade (78 ram'wkw1) (18 inn width) ea Complated Instigation Vlixattoiy plow Is not acceptable because of horaontOi compoction Figure 4.20-Silt Fence installation by Slicing Method 1111 11111 4-98 Volume II—Construction Stormwater Pollution Prevention February 2005 IN rr BMP C235: Straw Wattles Purpose Straw wattles are temporary erosion and sediment control barriers consisting of straw that is wrapped in biodegradable tubular plastic or similar encasing material. They reduce the velocity and can spread the ""' flow of rill and sheet runoff, and can capture and retain sediment. Straw wattles are typically 8 to 10 inches in diameter and 25 to 30 feet in length. The wattles are placed in shallow trenches and staked along the contour of d disturbed or newly constructed slopes. See Figure 4.21 for typical construction details. Conditions of Use • Disturbed areas that require immediate erosion protection. ille • Exposed soils during the period of short construction delays, or over winter months. di • On slopes requiring stabilization until permanent vegetation can be established. • Straw wattles are effective for one to two seasons. • If conditions are appropriate, wattles can be staked to the ground using willow cuttings for added revegetation. rr • Rilling can occur beneath wattles if not properly entrenched and water can pass between wattles if not tightly abutted together. Design Criteria • It is critical that wattles are installed perpendicular to the flow r▪ ► direction and parallel to the slope contour. • Narrow trenches should be dug across the slope on contour to a depth of 3 to 5 inches on clay soils and soils with gradual slopes. On loose "•' soils, steep slopes,and areas with high rainfall,the trenches should be dug to a depth of 5 to 7 inches, or 1/2 to 2/3 of the thickness of the wattle. • Start building trenches and installing wattles from the base of the slope and work up. Excavated material should be spread evenly along the uphill slope and compacted using hand tamping or other methods. • Construct trenches at contour intervals of 3 to 30 feet apart depending on the steepness of the slope, soil type,and rainfall. The steeper the slope the closer together the trenches. • Install the wattles snugly into the trenches and abut tightly end to end. Do not overlap the ends. • Install stakes at each end of the wattle,and at 4-foot centers along entire length of wattle. wrr • If required, install pilot holes for the stakes using a straight bar to drive holes through the wattle and into the soil. • At a minimum,wooden stakes should be approximately 3/4 x 3/4 x 24 inches. Willow cuttings or 3/8-inch rebar can also be used for stakes. 4-100 Volume II— Construction Stormwater Pollution Prevention February 2005 Ili III Maintenance • Stakes should be driven through the middle of the wattle, leaving 2 to 3 Standards inches of the stake protruding above the wattle. itall • Wattles may require maintenance to ensure they are in contact with soil and thoroughly entrenched, especially after significant rainfall on steep sandy soils. wr • Inspect the slope after significant storms and repair any areas where wattles are not tightly abutted or water has scoured beneath the wattles. err 3'4' I :- \ (1.2m) I ;-. ',! Mit Strew Rolls Must ,� -— ;_. �" Be Placed Along j\\.�I:,"r_ �� \ ''• Slope Contours z'':f�' Adjacent rolls shall `/dsk ' "`� tightly abut Ilia ,,,,,N I_ _✓! , is •� \" -. I�l. was; /'s >,/ I \ l 10'-25'(3.8m) //��� + � \;il; NN7 \-,. \;\,., , .. „. „„, ,,, , 10 ,...... --i-,;..-. k \,;;\ Spacing Depends on Soll Type and /!/\\ Sediment,organic matter, Slope Steepness ,\\\� and native seeds are /`\ / captured behind the rolls. ( l / ` IIIIII T---1 3"-5"(75-125mm) y\ elf//' r. ,,:..—,.,„.,, \__\___?- VA�A 8°-16"DIA. �` /�J (200-250mm) NM \/\ > z. .jam ) / \/ `� No Live Stake \k- �.,�� \`x ,r � .� 1" X 1" Stake A II i is not to scale (25 x 25mm) NOTE: 1.Straw roll installation requires the placement and secure staking of the roll in a trench,3"-5'.(75-125mm) III deep,dug on contour. runoff must not be allowed to run under or around roll. as Figure 4.21 —Straw Wattles NE February 2005 Volume II— Construction Stormwater Pollution Prevention 4-101 wr to BMP C241: Temporary Sediment Pond ;i, Purpose Sediment ponds remove sediment from runoff originating from disturbed areas of the site. Sediment ponds are typically designed to remove sediment no smaller than medium silt(0.02 mm). Consequently,they usually reduce turbidity only slightly. Conditions of Use Prior to leaving a construction site, stormwater runoff must pass through a sediment pond or other appropriate sediment removal best management .■ practice. A sediment pond shall be used where the contributing drainage area is 3 acres or more. Ponds must be used in conjunction with erosion control practices to reduce the amount of sediment flowing into the basin. Design and • Sediment basins must be installed only on sites where failure of the 41111 Installation structure would not result in loss of life, damage to homes or Specifications buildings,or interruption of use or service of public roads or utilities. Also, sediment traps and ponds are attractive to children and can be ,i„ very dangerous. Compliance with local ordinances regarding health and safety must be addressed. If fencing of the pond is required, the type of fence and its location shall be shown on the ESC plan. r • Structures having a maximum storage capacity at the top of the dam of 10 acre-ft(435,600 ft3) or more are subject to the Washington Darn Safety Regulations(Chapter 173-175 WAC). • See Figure 4.24, Figure 4.25, and Figure 4.26 for details. • If permanent runoff control facilities are part of the project, they should be used for sediment retention. The surface area requirements of the sediment basin must be met. This may require enlarging the permanent basin to comply with the surface area requirements. If a permanent control structure is used, it may be advisable to partially restrict the lower orifice with gravel to increase residence time while still allowing dewatering of the basin. • Use of infiltration facilities for sedimentation basins during construction tends to clog the soils and reduce their capacity to infiltrate. If infiltration facilities are to be used, the sides and bottom of the facility must only be rough excavated to a minimum of 2 feet above final grade. Final grading of the infiltration facility shall occur only when all contributing drainage areas are fully stabilized. The infiltration pretreatment facility should be fully constructed and used with the sedimentation basin to help prevent clogging. • Determining Pond Geometry Obtain the discharge from the hydrologic calculations of the peak flow for the 2-year runoff event(Q2). The 10-year peak flow shall be used if the project size, expected timing and duration of construction, or downstream conditions warrant a higher level of protection. If no hydrologic analysis is required,the Rational Method may be used. rr February 2005 Volume II—Construction Sto mwater Pollution Prevention 4-105 Oki 1116 Determine the required surface area at the top of the riser pipe with the equation: SA = 2 x Q2/0.00096 or 2080 square feet per cfs of inflow See BMP C240 for more information on the derivation of the surface area calculation. The basic geometry of the pond can now be determined using the following design criteria: • Required surface area SA(from Step 2 above) at top of riser. • Minimum 3.5-foot depth from top of riser to bottom of pond. • Maximum 3:1 interior side slopes and maximum 2:1 exterior slopes. The interior slopes can be increased to a maximum of 2:1 if fencing is provided at or above the maximum water surface. "i' • One foot of freeboard between the top of the riser and the crest of the emergency spillway. re • Flat bottom. • Minimum 1-foot deep spillway. • Length-to-width ratio between 3:1 and 6:1. • Sizing of Discharge Mechanisms. The outlet for the basin consists of a combination of principal and emergency spillways. These outlets must pass the peak runoff expected from the contributing drainage area for a 100-year storm. If,due to site conditions and basin geometry,a separate emergency spill-way is not gig feasible,the principal spillway must pass the entire peak runoff expected from the 100-year storm. However,an attempt to provide a separate emergency spillway should always be made. The runoff calculations should be based on the site conditions during construction. The flow through the dewatering orifice cannot be utilized when calculating the 100-year storm elevation because of its potential to become clogged; therefore, available spillway storage must begin at the principal spillway 011 riser crest. The principal spillway designed by the procedures contained in this standard will result in some reduction in the peak rate of runoff. However,the riser outlet design will not adequately control the basin discharge to the predevelopment discharge limitations as stated in Minimum Requirement#7: Flow Control. However, if the basin for a ■r permanent stormwater detention pond is used for a temporary sedimentation basin,the control structure for the permanent pond can be used to maintain predevelopment discharge limitations. The size of the basin,the expected life of the construction project,the anticipated downstream effects and the anticipated weather conditions during construction,should be considered to determine the need of additional discharge control. See Figure 4.28 for riser inflow curves. 4-106 Volume 11—Construction Stormwater Pollution Prevention February 2005 rr err aalll Key divider into slope to prevent flow ,r arour�fi�fi. 4.2. Sediment • r�-iser r,• .11 The pond length shall be 3 to 6 times the maximum pond width MI irof . Emergency overflow r spillwa ilk _ a,hfi�1 4.4.,„...,...,._,_.4�6:#,Y JOT. .. ......i.v.N:,.. gig Pon.length pip` S 'K .`� Inflow •7.$ _ Silt fence or IIE// equivalent divider Discharge to stabilized conveyance,outlet,or s level spreader Aim -- ...411, 4 saiiiNote:Pond may be formed by berm or 111111& by partial or complete excavation wr Figure 4.24—Sediment Pond Plan View Riser pipe -(principal spillway) Crest of open at top with 6'min.Width trash rack emergenc spillway � h 1-„,.,- . , `.„ ..,--.....1._ ', I, Embankment compacted 95% Il—. Dewatering device \//AAA' , 17-- n V ,envious materials such as +R '• '`�s: (see riser detail) i 'a gravel or clean sand shall Y'r _+',, not be used LI }' IW. r� 1 r" i•re Jrr iir--es . ,. I—'l r ! - td n ■1(! ll r.,1"r l 'II—�II'—I—11411 all r;:f—1 t ii j- Tr Wire-backed silt fence bewa(er ngDischarge to stabilized awe ked es wrapped Concrete base conveyance outlet or with fitter fabric,or orifice (see riser detail) level spreader equivalent divider ea Figure 4.25—Sediment Pond Cross Section eril Polyethylene cap Provide adequate strapping a_ Perforated polyethylene c drainage tubing,diameter omrgater 11110 min.2"larger than metal riser dewatering orifice. 3.5"min. Tubing shall comply Watertight with ASTM F667 and Coupling Dewatering orifice,�hedule, AASHTO M294 Tack weld 40 steel stub min. -„ AimAimDiameter as per calculations •'fa lriEMS a 8"min. ,---- 18"min. i Alternatively,metal stakes i_ Concrete base and wire may be used to alliiiprevent flotation I•---2X riser dia.Min.—I No Figure 4.26—Sediment Pond Riser Detail February 2005 Volume 11—Construction Stormwater Pollution Prevention 4-107 1 is r�r 1°o 11.111111111111.111•1111.1111 72 5 4 .4 8 5/P1lman-ma 1111=1111111111111111111111■ rlluilimonwarimilmo/%m%I!11.1 //1■11MMICOMPIS1 NENE/ Ain 33 Orillei 32: rein Eli IIMPFTYV 2 4 •,' ''� " MORI 0 1 8 imp a I 0 1 5111/0211.111 �_///////,/ FAMIl.iMINIII/_11111 VAIP7//�/MEMINir � P2Minn �r�♦� AZYAi1HI 10 111111 littAr ///:r��ii!�i/.iiMI 1E111 as V A Nairn /yam Alio so 0.1 1 1 0 HEAD IN FEET (measured from crest of riser) welr=9.739 DHe'2 G1ur1110 =3.782 D2H112 CI in cfs,D and H in feet Slope change occurs at weir-orifice transition Figure 4.27—Riser Inflow Curves trr taxi 4-108 Volume 11—Construction Stormwater Pollution Prevention February 2005 Principal Spillway: Determine the required diameter for the principal spillway (riser pipe). The diameter shall be the minimum necessary to pass the pre-developed 10-year peak flow(QIa). Use Figure 4.28 to determine this diameter(h 1-foot). Note:A permanent control structure may be used instead of a temporary riser. Emergency Overflow Spillway: Determine the required size and design of the emergency overflow spillway for the developed 100-year peak flow using the method contained in Volume III. Dewatering Orifice: Determine the size of the dewatering orifice(s) (minimum 1-inch diameter) using a modified version of the discharge equation fora vertical orifice and a basic equation for the area of a circular orifice. Determine the required area of the orifice with the following equation: au A AS(2h)os 0.6x3600Tg os where Ao = orifice area(square feet) As = pond surface area (square feet) h — head of water above orifice(height of riser in feet) T — dewatering time (24 hours) g = acceleration of gravity (32.2 feet/second2) dim Convert the required surface area to the required diameter D of the orifice: au D =24x,jA° =13.54x A° YV 7r The vertical,perforated tubing connected to the dewatering orifice must be at least 2 inches larger in diameter than the orifice to improve flow characteristics. The size and number of perforations in the tubing should be large enough so that the tubing does not restrict flow. The orifice should control the flow rate. • Additional Design Specifications The pond shall be divided into two roughly equal volume cells by a permeable divider that will reduce turbulence while allowing movement of water between cells. The divider shall be at least one- half the height of the riser and a minimum of one foot below the top of the riser. Wire-backed, 2-to 3-foot high, extra strength filter fabric supported by treated 4"x4"s can be used as a divider. Alternatively, staked straw bales wrapped with filter fabric (geotextile)may be used. If the pond is more than 6 feet deep,a different mechanism must be proposed. A riprap embankment is one acceptable method of separation for deeper ponds. Other designs that satisfy the intent of au February 2005 Volume II—Construction Stormwater Pollution Prevention 4-109 it& 1116 this provision are allowed as long as the divider is permeable, structurally sound, and designed to prevent erosion under or around 1111 the barrier. To aid in determining sediment depth, one-foot intervals shall be prominently marked on the riser. r ` If an embankment of more than 6 feet is proposed, the pond must comply with the criteria contained in Volume III regarding dam safety for detention BMPs. • The most common structural failure of sedimentation basins is caused by piping. Piping refers to two phenomena: (1)water seeping through fine-grained soil, eroding the soil grain by grain and forming pipes or tunnels;and, (2)water under pressure flowing upward through a granular soil with a head of sufficient magnitude to cause soil grains to lose contact and capability for support. The most critical construction sequences to prevent piping will be: 1. Tight connections between riser and barrel and other pipe 'm' connections. 2. Adequate anchoring of riser. 3. Proper soil compaction of the embankment and riser footing. 4. Proper construction of anti-seep devices. Maintenance • Sediment shall be removed from the pond when it reaches 1—foot in Standards depth. am • Any damage to the pond embankments or slopes shall be repaired. so um MO rr 4-110 Volume II—Construction Stormwater Pollution Prevention February 2005 rrr fier gill REQUIREMENTS ACTIVITY SHEET A-1 : Required BMPs for All Commercial Properties MINIMUM REQUIREMENTS The following BMPs are required if you own or occupy commercial, AIN industrial,agricultural,public,or multifamily residential property in unincorporated King County. Clean Your Storm Drainage System Maintain your storm drainage system by removing sediment and other debris to prevent the transport of pollutants into receiving waters. The storm drainage system includes all drains, catch basins, pipes, ditches, gutters, and flow control and water quality facilities. tain See BMP Info Sheet 7 in Chapter 5 for details on drainage system maintenance. Eliminate Illicit Connections to the Storm Drainage System A common situation that can cause severe stormwater pollution problems is discharge of non-stormwater to the storm drainage system. Examples are discharges from internal floor drains,appliances, industrial processes,sinks,and toilets. These are sometimes illegally or inadvertently connected or drained to the nearby storm drainage system. These discharges must go to the sanitary sewer system, a holding tank, an on-site process water treatment system, or a septic system. You must correct these illicit discharges. If you have any questions as to whether your discharge is allowable,contact the King County Water and Land Resources Division at 206-296-1900. MO See BMP Info Sheet 1 in Chapter 5 for information on how to check for illicit connections. You can also ask for help from your local sewer utility. If you find out that your internal drains are January 2009 King County Stormwater Pollution Prevention Manual rw Ir Required BMPs for All Commercial Properties(continued) iii improperly connected to the storm drainage system,they will need to be either removed,permanently plugged, or connected to the sanitary sewer, septic system, on-site treatment system,or a holding "i` tank. Stencil Your Storm Drains Stencil or apply storm drain markers adjacent to storm drains to help IN prevent the improper disposal of pollutants. Storm drain inlets should have messages such as"Dump No Waste-Drains to Stream"applied next to the catch basin to warn against the intentional dumping or ii discharge of pollutants. If the metal catch basin grate has been cast with this message, marking the drains is still recommended,but may not be required unless evidence is found that pollutants are being dumped or ■r washed to the storm drains. lie MI ill For more information or assistance in implementing these best management practices,contact the King County IN Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to ill the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. irr Ili II Mil O King County Storm water Pollution Prevention Manual January 2009 MO w +�r REQUIREMENTS ACTIVITY SHEET A-4 Storage of Soil, Sand, and Other Erodible Materials This activity applies to you if you are stockpiling erodible raw materials such as soil, sawdust, am landscaping bark, gravel, sand, and road deicing salts. It covers permanent sites as well as temporary construction sites and other temporary locations. Raw material stockpiles can easily erode due to wind or precipitation and contribute suspended solids, nutrients,metals, and harmful pH to stormwater runoff. MINIMUM REQUIREMENTS The following BMPs, or equivalent measures, methods,or practices, are required if you are engaged in storage or stockpiling erodible material on a routine or temporary basis. Cover and contain the stockpiles of raw materials to prevent stormwater from washing material to surface waters or a storm drainage system. The covers must be in place at all times when the stockpile is not in ,w„ active use. Do not hose down the contained stockpile area to the storm drainage system. Stockpiles located away from paved areas or where material will not be washed or tracked to the storm drainage system may not need to be covered unless windy conditions cause air borne particulate that could settle on hard surfaces and subsequently washed into adjacent surface waters or storm drainage systems. OR did If the stockpiles are so large that they cannot feasibly be covered and contained, implement erosion control practices at the perimeter and as needed on site to prevent erosion and runoff of the stockpiled material into the storm drainage system or off site. See the King County Surface Water Design Manual,Appendix D (Erosion and Sediment Control rw Standards). See BMP Info Sheet 3 in Chapter 5 for information on covering options. January 2009 King County Stormwater Pollution Prevention Manual Irr Storage of Soil, Sand, and Other Erodible Materials(continued) via See BMP Info Sheet 5 in Chapter 5 for information on containment options. Required Routine maintenance: • Sweep paved storage areas as needed and collect and dispose of loose solid materials.Do not hose down the area to a storm drain or No ditch. • Stock cleanup materials, such as brooms,dustpans, and vacuum sweepers near the storage area. ADDITIONAL BMPS The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control. A catch basin insert, configured for sediment removal,may remove rrr some of the pollutants in runoff from this activity. Catch basin inserts require frequent maintenance to be effective. Carefully consider this requirement when evaluating your options. See BMP Info Sheet 10 in Chapter 5 for more information. tit ail For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-I900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. a nr King County Stormwater Pollution Prevention Manual January 2009 REQUIREMENTS ACTIVITY SHEET A-S Storage of Pesticides and Fertilizers This activity applies to you if you store dry pesticides or fertilizers. See Activity Sheets A-2 and A-3 for the storage of liquid materials. Runoff from pesticide storage areas can be contaminated with toxic compounds, oils, and metals. Runoff from fertilizer storage areas can be contaminated with nutrients and fecal coliform bacteria. The primary problem with most of these pollutants is ION that they are soluble,which means they cannot be removed from stormwater runoff, or out of contaminated water that seeps into the soil,with the technologies currently in use. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods,or practices are required if you are engaged in the storage of dry pesticides and fertilizers: air Cover pesticides and fertilizers. See BMP Info Sheet 3 in Chapter 5 for information on covering options. "m" Raise the materials off the ground by using pallets or another similar method to prevent contact with stormwater runoff. OR Contain the material in such a manner that if the container leaks or spills,the contents will not discharge,flow, or be washed into the storm •r drainage system, surface waters, or groundwater. See BMP Info Sheet 5 in Chapter 5 for information on containment options. Required Routine Maintenance: • Store and maintain appropriate spill cleanup materials near the storage area, in a location known to all. .r� January 2009 King County Stormwater Pollution Prevention Manual Storage of Pesticides and Fertilizers(continued) • Clean up any spilled fertilizer or pesticides and ensure that the materials are kept in the designated covered or contained areas. • Sweep paved storage areas as needed. Collect and dispose of loose solid materials. Do not hose down the area to a storm drain or conveyance ditch. wrr For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. King County Storm water Pollution Prevention Manual January 2009 rrit REQUIREMENTS ACTIVITY SHEET A-8 OM Storage of Solid Waste and Food Wastes (Including Cooking Grease) This activity applies to you if you store solid wastes including both food and non-food wastes outdoors. This typically refers to garbage dumpsters,other outdoor waste containers such as cooking grease barrels or containers, and any stockpiled garbage. Improper storage of non-food solid wastes can allow toxic compounds, oils and greases, metals, nutrients, and suspended solids to enter stormwater runoff. Stormwater runoff from food waste storage areas may be contaminated with oils and greases, nutrients, and suspended solids if waste containers are leaking, are not covered,or are too small to contain the amount of waste generated. If you store dangerous wastes you must follow specific regulations outlined by the Washington State Department of Ecology. MINIMUM REQUIREMENTS ea The following BMPs,or equivalent measures, methods, or practices, are required if you are engaged in storage of solid wastes or food wastes: Dumpsters and other waste storage containers must be leak-proof with solid lids. Keep dumpsters closed except when adding waste. If waste es is not in containers,cover all waste piles (plastic tarps are acceptable coverage)and prevent stormwater run-on and run-off with a berm or similar method. Keep all waste piles covered except when in use. Cl See BMP Info Sheet 5 in Chapter 5 for information on containment and run-on prevention and BMP Info Sheet 3 for information on covering options. Yid When transferring cooking oil/grease to outside containers from kitchens, cover the container with a tight lid during transport and clean up any spills immediately. Keep the area around the grease container clean,free of grease, and debris free. Use drip pans or absorbent materials whenever grease containers are emptied by vacuum trucks or other means. Grease cannot be left on the rw January 2009 King County Stormwater Pollution Prevention Manual 111111 Storage or Solid Waste and Food Wastes(Including Cooking Grease)(continued) ow ground. Clean up spills immediately. Collected grease must be properly disposed of as garbage. 44, am Required Routine Maintenance: NS • Check storage containers as needed for leaks and to ensure that lids are on tightly.Replace containers that are leaking, corroded,or otherwise deteriorating. No • Sweep and dean the storage area as needed if it is paved. Do not hose down the area to a storm drain. go • Dispose of rinse and wash water from cleaning your containers into a sanitary sewer according to health department requirements, or if Ili no sewer is available,store in a holding tank,dead end sump or truck off site to an approved disposal location. No See BMP Info Sheet 2 in Chapter 5 for information on disposal options. oil or For more information or assistance in implementing these best management practices,contact the King County - Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to rrb the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. se NI 11111 Ili III King County Stormwater Pollution Prevention Manual January 2009 au REQUIREMENTS ACTIVITY SHEET A-11 Cleaning or Washing of Tools and Equipment This activity applies if you clean all types of tools and equipment. This includes landscaping equipment such as lawn mowers and weed whackers;tools used at auto and other equipment repair shops; and,manufacturing equipment such as saws, grinders and screens. Uncontrolled outdoor washing can contribute toxic hydrocarbons and other organic compounds, oils and greases, nutrients,metals, harmful pH, and suspended solids to stormwater runoff. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures, methods,or practices, are required if you are engaged in cleaning or washing of tools and dal small power and manufacturing equipment: Tool and equipment wash water is considered process water, and must ma discharge to the sanitary sewer,a holding tank,or a process treatment system, regardless of the washing method used. See BMP Info Sheet 2 in Chapter 5 for information on disposal options. '"' You are encouraged to recycle your wash water with an enclosed loop system or use self-contained parts washers.Numerous products are commercially available that recycle and contain wash water and cleaning solvents. If you cannot connect discharges to a sanitary sewer, process treatment ri system, or holding tank you must contact the Washington State Department of Ecology and go through the Individual Wastewater Discharge permit process. Lawnmowers may be rinsed with water only on a lawn or similar area as long as the rinsed-off grass clippings will not be washed to the storm drain system or surface waters when it rains. Washwater from oily or similarly contaminated lawn maintenance equipment is not allowed to flow to or discharge to any stormwater system or surface water. ea are January 2009 King County Storm water Pollution Prevention Manual Cleaning or Washing of Tools and Equipment(continued) 1111 For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. filk rr • ■r King County Storm water Pollution Prevention Manual January 2009 wr REQUIREMENTS ACTIVITY SHEET A-17 Fueling Operations This activity applies if you refuel vehicles on the premises,whether a large sized gas station or a single pump maintenance yard installation. It also covers mobile fueling operations. Stormwater runoff from fueling areas may be contaminated with toxic hydrocarbons, oils and greases,and metals. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods,or practices,are required if you are engaged in dedicated permanent fueling operations: am Cover the fueling area with an overhanging roof structure or canopy so that precipitation cannot come in contact with the fueling area. ar' See BMP Info Sheet 3 in Chapter 5 for information on covering options. `➢" An exception to this requirement is granted for mobile fueling equipment, floating fuel islands on water, and oversized vehicles that can not maneuver under a roof. Pave the fueling area with Portland cement concrete and contain the area to prevent uncontaminated stormwater from running into the fueling area and carrying pollutants to the onsite storm drainage system or adjacent surface dui water or conveyance systems. See BMP Info Sheet 5 in Chapter 5 for information on containment. Install and maintain an oil or spill control device in the appropriate catch basin(s)to treat runoff from the fueling area. See the King County Surface Water Design Manual for various designs and the BMP Info Sheet 9 in Chapter 5 for further information on oil/water separators. Never hose down the fueling area to the storm drains. Contaminated runoff must be collected for proper disposal. Required Routine Maintenance: • Post signs to remind employees and customers not to top off the fuel tank when filling. Post signs that ban customers and employees from changing engine oil or other fluids at that location. • Store and maintain appropriate spill cleanup materials in a location known to all. Ensure that employees are familiar with the site's spill control plan and/or proper spill cleanup procedures. January 2009 King County Stormwater Pollution Prevention Manual IN Fueling Operations(continued) Nil If you cannot.implement the above requirements on your site,consider ceasing your on-site fueling activities and take your vehicles to a fueling NO station that meets these requirements. The following BMPs,or equivalent measures,methods,or practices,are 1111 required if you are engaged in mobile fueling operations: Locate the fueling operation to ensure leaks or spills will not discharge, flow,or be washed into the storm drainage system, surface water,or dilli groundwater. Use drip pans or absorbent pads to capture drips or spills during fueling so operations. If fueling is done during evening hours, lighting must be provided. moo Required Routine Maintenance: iii • Store and maintain appropriate spill cleanup materials in the mobile fueling vehicle.Ensure that employees are familiar with proper spill control and cleanup procedures. II, ADDITIONAL BMPs Ili The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control. Use absorbent pillows or similar absorbent materials in or around storm si drain inlets on the property to filter oily runoff.These require frequent maintenance and close attention,but can be useful in short-term situations. Used absorbent materials containing oil must be picked up by a qualified am disposal contractor. A catch basin insert configured for oil removal may remove some of the pollutants in runoff from this activity.Catch basin inserts require frequent Ili maintenance to be effective.Carefully consider this when evaluating your options. The oil absorbent filter media must retain absorbed oil during future storm events. See Chapter 6.6.1 of the King County Surface Water Design iii Manual for more information regarding which filter media provide acceptable oil retention. ow See BMP Info Sheet 10 in Chapter 5 for more information. ma For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. sti Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. mit King County Stormwater Pollution Prevention Manual January 2009 REQUIREMENTS ACTIVITY SHEET A-1 8 Vehicle and Equipment Repair and Maintenance This activity applies if you repair and maintain vehicles and other equipment. It also applies to mobile vehicle maintenance operations, such as at construction sites. This common activity can lead to immediate stormwater contamination if repairs and maintenance are not done in a controlled manner.This activity can contaminate stormwater runoff with toxic hydrocarbons, other toxic organic compounds, oil and grease,harmful pH, and metals. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods,or practices, are all required if you are engaged in engine and vehicle repair and maintenance: Inspect vehicles and equipment for leaks. Use drip pans or absorbent material to capture leaking fluids. Clean up any spilled fluids immediately. Keep waste oil, antifreeze,and other fluids properly covered and contained. See Activity Sheet A-3, "Storage of Liquid Materials in Portable Containers." Store batteries upright in a secure,contained, covered place. Don't store batteries outside on the ground. Check to ensure batteries are not damaged or leaking. Keep battery acid neutralizing materials, such as baking soda, 'i available near the storage area. Call the Business Waste Line at 206-296-3976 or see http://www.govlink.org/ hazwaste/business/index.cfm for information on the proper disposal and recycling of vehicle fluids,filters, and batteries. Sweep paved work areas as needed to clean up debris. Clean up vehicle fluids with rags or other absorbent material immediately. Never wash paved areas to a storm drain or the street. Regular work at a stationary business location should be done indoors. If temporary work is being conducted outside, use a tarp,ground cloth, or drip pans beneath the vehicle or equipment to capture all spills and drips. The collected material must be disposed of, reused, or recycled properly. See BMP Info Sheet 2 in Chapter 5 for information on disposal options. ,,, January 2009 King County Stormwater Pollution Prevention Manual iii Engine Vehicle and Equipment Repair and Maintenance(continued) Ili 4. Ensure employees are trained in the proper handling, storage, and disposal of vehicle and equipment fluids. 11111 UM Store and maintain appropriate spill cleanup materials in a location known to all. Ensure that employees are familiar with the site's spill control plan and/or proper spill cleanup procedures. Call the Business Waste Line at 206-296- 3976 for information on the proper disposal of used absorbent materials. 'ri Industrial laundry services are available that provide reusable cloth shop rags to clean up small drips and spills.A list of industrial laundry services that to manage shops rags is available online at http://www.govlink.org/hazwaste/ business/wastedirectory/wasteindex.efm#S. Do not wash cloth rags at home Ili or at a regular commercial laundry. ADDITIONAL BMPs * The following BMPs are optional unless the above minimum as requirements do not provide adequate source control. Absorbent material such as pillows or booms can be used around storm drains or in catch basins to absorb oil and other substances. Used absorbent toi materials containing oil or other engine fluids must be disposed of in the appropriate manner. Oil recycling vendors or other vendors that pick up used go vehicle fluids can assist in the appropriate disposal of these materials. A catch basin insert,configured for oil removal,may remove some of the pollutants in runoff from this activity. Catch basin inserts require frequent to maintenance to be effective. Carefully consider this requirement when evaluating your options. ma Cr See BMP Info Sheet 10 in Chapter 5 for more information. ,nr, Ili IS Ili King County Stormwater Pollution Prevention Manual January 2009 us um 411 as REQUIREMENTS ACTIVITY SHEET A-19 Concrete and Asphalt Production at Stationary Sites This activity applies if you mix raw materials on-site to produce concrete or asphalt.It also applies to subsequent activities such as pouring concrete structures, and making other concrete and asphalt products. Mishandling during concrete production can introduce suspended solids and metals to stormwater runoff and cause pH alterations in receiving waters.Asphalt production as can introduce toxic hydrocarbons,other toxic organic compounds, oils and greases, and metals to stormwater runoff. Improper equipment washing may cause concrete and asphalt waste materials and liquids to be washed to storm drainage systems. Mobile concrete pouring and asphalt applications are covered under Activity Sheet A-20. This activity sheet does not cover concrete production at mining or sand and gravel sites covered by a King County Clearing and Grading Permit or National Pollution Discharge Elimination System (NPDES) Sand and Gravel Permit issued by the Washington State Department of Ecology. However, if the BMPs conditioned in these permits do not adequately protect stormwater, surface, or ground water quality, more stringent BMPs may be required under King County Code 9.12. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods, or practices, are required if you are engaged in concrete and asphalt mixing and production: Discharge all process water from production,pouring,and equipment cleaning activities to a sump,process water treatment or recycling system,or sanitary sewer system.Never wash contaminated water to the storm drainage system. Discharge to the sanitary sewer system will require approval from the local sewer district/agency. See BMP Info Sheet 2 in Chapter 5 for information on disposal options. Contain the production and pouring area to prevent stormwater runon so pollutants are not washed to stormwater or natural drainage systems. See BMP Info Sheet 5 in Chapter 5 for information on containment January 2009 King County Storm water Pollution Prevention Manual .r� liti Concrete and Asphalt Production at Stationary Sites(continued) Ili and run-on prevention. NMI Prevent cement dust from settling onto surfaces where it will contaminate stormwater runoff. Sweep up any settled dust. Never hose down cement dust to the storm drainage system. mii Required Routine Maintenance: Sweep the production and pouring area as needed if it is paved. Collect Ili loose chunks of aggregate and raw material particles for recycling or proper disposal. Do not hose down the area to a storm drain. is ADDITIONAL BMPs wit The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control: NoUse an oil control device in the catch basins to treat stormwater runoff. See the King County Surface Water Design Manual and BMP Info Sheets 9 and 10 in Chapter 5 for further information. ri Pave the mixing,production,and/or pouring area(s)with a slope that , ; drains to a central collection area. For concrete production and pouring activities,a sump drain should not be provided because it would be quickly clogged with hardened concrete. It would be effective to IN segregate the mixing and pouring area from the curing area because wastewater from curing applications could be collected by a drain. By sloping the pavement to a central location, loose chunks of concrete or a asphalt aggregate can be collected more easily and recycled or disposed of properly. iii re For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. MI Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution NI discharges. Ili King County Stormwater Pollution Prevention Manual January 2009 rr or REQUIREMENTS ACTIVITY SHEET A-20 Concrete and Asphalt Application at Temporary Sites 4111 This activity applies if you apply asphalt and/or pour concrete for building construction, road 4111 construction, sidewalk, curb and gutter repairs and construction, sealing of driveways and roofs, and other applications. These activities are typically done on a temporary site-to-site basis where permanent BMP measures do not apply.Asphalt application can contribute high concentrations of toxic hydrocarbons, other toxic organic compounds, oils and greases, and metals to stormwater runoff. Concrete pouring can contribute suspended solids and metals to stormwater runoff and cause detrimental pH changes in receiving waters. MINIMUM REQUIREMENTS 4' The following BMPs, or equivalent measures, methods,or practices are required if you are engaged in concrete pouring and asphalt application at temporary sites: Use drip pans,ground cloths, heavy cardboard or plywood wherever concrete, asphalt,and asphalt emulsion chunks and drips are likely to fall unintentionally, such as beneath extraction points from mixing equipment. Provide storm drain covers, inlet protection or similarly effective containment devices over all nearby drains at the beginning of the workday. All accumulations of runoff, aggregate chunks,and other solids must be collected for proper disposal at the end of the workday (or more frequently)prior to removing the containment or cover device(s).Drain covers and other containment devices are commercially available to keep runoff out of the storm drainage system. Contain and collect the slurry from exposed aggregate washing, where the top layer of unhardened concrete is hosed or scraped off to leave an exposed aggregate or rough finish.Never wash or allow the discharge of concrete slurry to a storm drain, ditch, roadway shoulder or gutter. Use a storm drain cover, inlet protection or other containment device, such as a hand-dug sump where slurry can be directed to and contained. (See item 4 below).All collected runoff must be properly disposed of. 4 "°� January 2009 King County Stormwater Pollution Prevention Manual Concrete and Asphalt Application at Temporary Sites(continued) Concrete and concrete pumping vehicles shall not discharge any concrete, slurry, or rinse water into street gutters, storm drains, or ili drainage ditches or onto the paved surface of a roadway or driveway. Designate a wash-out area onsite where application and mixing 1111 equipment cleaning will be conducted. This washout area can also be used as an area for rinse water control. It is also acceptable to dispose of rinse water and slurry in a hole in the ground large enough to contain the III slurry and rinse material. Commercial products and services are also available for concrete,slurry,and rinse water containment and disposal. Routine Maintenance: Sweep the pouring area at the end of each day or more frequently if needed. Collect loose aggregate chunks and dust. Do not hose down the i area to a storm drain. 1111 Additional BMPs The following BMPs are optional,unless the above minimum a required BMPs do not provide adequate source control: 4. If possible,portable asphalt mixing equipment should be covered by an ow awning or other simple structure while raining to avoid contact with rainfall. 11111 A catch basin insert configured for sediment removal may remove some of the pollutants in runoff from this activity. This is especially useful if the activity must proceed on rainy days. Catch basin inserts require mi frequent maintenance to be effective,so consider this when evaluating your options. Concrete work of all types tends to cause elevated pH in runoff, and it must be monitored and neutralized before off site mg discharge of the runoff occurs. See BMP Info Sheet 10 in Chapter 4 for more information. ' is For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Stormwater Services Section at 206-296-1900. of Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. m King County Stormwater Pollution Prevention Manual January 2009 rr Mil REQUIREMENTS ACTIVITY SHEET A-26 AN Landscaping Activities and Vegetation Management This broad activity encompasses all aspects of landscaping and vegetation management, from small- scale yard maintenance to large-scale commercial landscaping businesses and vegetation management programs. It includes vegetation removal,herbicide and insecticide application, fertilizer application,watering, and other gardening and lawn care practices. Stormwater runoff from areas that have been subject to pesticide or fertilizer application or extensive clearing, grading or ra cutting may be contaminated with pesticides and other toxic organic compounds,metals, oils, suspended solids,nutrients from fertilizer, and coliform bacteria, and may cause biochemical oxygen demand. While not required, consider using the Integrated Pest Management(IPM)approach for pest control. IPM is an approach that uses an array of methods to manage pest damage with the least possible hazard to people and the environment. IPM uses a combination of biological, cultural, and physical practices that can significantly reduce or eliminate the use of pesticides. See Activity Sheets A-5,"Storage of Pesticides and Fertilizers"and A-3,"Storage of Liquid Materials in Portable Containers."Landscaping activities related to golf courses should refer to King County's Golf Course BMP Manual(see Chapter 6 of this manual for more information). Note: The term pesticide includes insecticides, herbicides,fungicides, rodenticides, etc. MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods,or practices are required if you are engaged in landscaping activities: Do not apply any pesticides directly to surface waters, unless the dill application is approved and permitted by the Washington State Department of Ecology. rW Mix pesticides so that spilled material will not be washed to surface waters, the storm drainage system,or onto the ground.Clean up any spills immediately. Ensure employees are trained on the proper use of pesticides and in pesticide application techniques to prevent pollution. Washington pesticide law requires most businesses that commercially apply pesticides to the property of another to be licensed as a Commercial Applicator. Follow manufacturers' recommendations and label directions. Pesticides and fertilizers must never be applied if it is raining or about to rain. Do not apply pesticides within 100 feet of surface waters such as lakes,ponds, +r+ wetlands,and streams. This also can include stormwater conveyance ditches. Remove weeds/vegetation in stormwater ditches by hand or other January 2009 King County Stormwater Pollution Prevention Manual are ft i Landscaping Activities and Vegetation Management(continued) iiii mechanical means.Chemicals should be used as a last resort. ilk Dispose of grass clippings,leaves,branches, sticks, or other collected vegetation, by recycling,composting, or burning(if allowed).Do not dispose of collected vegetation into storm drainage systems, conveyance ditches, stormwater ponds,or surface water. ' Use mulch or other erosion control measures when soils are exposed for more than one week during the dry season or two days during the rainy ma season. • Implement water conservation practices to assure sprinkler systems do not "overspray"vegetated areas and discharge to hard surfaces such as ti sidewalks,driveways,and parking lots. Adjust sprinkler heads accordingly. Minimize water use so runoff does not occur or enter storm drainage iiii systems.Use approaches to reduce water use such as those described in the Natural Yardcare program. http://your.k ingcounty.gov/solidwaste/naturalyardcare/watering.asp mg The King County Noxious Weed Control Program provides best management practices for the removal of typical noxious weeds such as iiii blackberry and purple loosestrife. Call 206-296-0290 or see http://www.kingcounty.gov/environment/animalsandplants/noxious- weeds/weed-control-practices.aspx for more information. iiii ADDITIONAL BMPs The following BMPs are optional unless the above minimum required IN BMPs do not provide adequate source control: Integrated pest management(IPM), a comprehensive approach to the use of pesticides is the most effective BMP measure that can be taken for iiii herbicide, insecticide, and fungicide use. 0P See BMP Info Sheet 6 in Chapter 5 for information on IPM. + 6Fertilizers should be worked into the soil rather than dumped or broadcast onto the surface. Determine the proper fertilizer application for the types of soil and vegetation involved. Soil should be tested for the correct fertilizer 'S usage. Use mechanical methods of vegetation removal rather than applying rrr herbicides. r a King County Stormwater Pollution Prevention Manual January 2009 Ili Ili Landscaping Activities and Vegetation Management(continued) An effective measure that can be taken to reduce pesticide use,excessive watering, and removal of dead vegetation involves careful soil mixing and layering prior to planting. A topsoil mix or composted organic material air should be rototilled into the soil to create a transition layer that encourages deeper root systems and drought-resistant plants. This practice can improve the health of planted vegetation, resulting in better disease resistance and reduced watering requirements. Use native plants in landscaping.Native plants do not require extensive fertilizer or pesticide applications. ar For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. rn rw 101 ,gin 11111 January 2009 King County Stormwater Pollution Prevention Manual �rrr 11115 rri N REQUIREMENTS ACTIVITY SHEET A-28 ■ Demolition of Buildings ON This activity applies to the removal of existing buildings by controlled explosions,wrecking s balls,or manual methods,and subsequent clearing of the rubble. Demolition of buildings can introduce a variety of pollutants into stormwater runoff,primarily suspended solids,but also toxic organic compounds and metals.Broken concrete can elevate the pH of stormwater. This NO activity can also produce air borne pollutants that must be controlled to avoid surface water contamination. NI MINIMUM REQUIREMENTS Ili The following BMPs,or equivalent measures,methods,or practices are required if you are engaged in building demolition: Spray water throughout the site to help control fine materials and dust. NI The amount of water must be actively controlled and monitored to eliminate contaminated runoff from leaving the site. Other approved dust suppressants are available.Avoid excessive and repeated imi applications of dust suppressant chemicals. Place filter fabric, inlet control measures or a similarly effective device la in or around all nearby drains to prevent particles and solids from entering the storm drainage system. Filtering devices shall be placed at the beginning of the workday and the accumulated materials collected wil and disposed of properly before removing the devices at the end of the workday. Filter fabric and other filter devices are commercially available. Sweep surrounding street gutters, sidewalks, driveways,and other paved iiii surfaces as needed to collect loose debris and garbage. Properly dispose di of collected debris and garbage. Do not hose down the area to a storm drain. re ow January 2009 King County Stormwater Pollution Prevention Manual riii Demolition of Buildings(continued) ADDITIONAL BMPs The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control: ryr A catch basin insert configured for sediment and debris removal may remove some of the pollutants in runoff from this activity. Catch basin inserts require frequent maintenance to be effective. Carefully consider this when evaluating your options. am See BMP Info Sheet 10 in Chapter 5 for information. For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. rwr awe w}r die wr King County Stormwater Pollution Prevention Manual January 2009 arr ma r Ns REQUIREMENTS ACTIVITY SHEET A-29 r Building Repair, Remodeling, and Construction ow This activity applies if you are engaged in common on-site labor activities associated with construction of buildings and other structures, remodeling of existing buildings and houses, ilk painting of building exteriors,and general exterior building repair work. Stormwater runoff from building repair,remodeling,and construction work can be contaminated with toxic hydrocarbons in solvents,other toxic organic compounds,suspended solids, metals,abnormal pH, and oils and greases. Concrete pouring is covered under Activity Sheet A-20,"Concrete and Asphalt 11. Application at Temporary Sites." ft MINIMUM REQUIREMENTS The following BMPs,or equivalent measures, methods,or practices are required if you are engaged in building repair, remodeling,and um construction: Do not dump any substance,wash water or liquid waste on the MI pavement, the ground,or toward a storm drain or drainage ditch. Use ground or drop cloths underneath outdoor painting, scraping,and sandblasting work and properly dispose of collected material daily. • NibUse a ground cloth or oversized tub for activities such as paint mixing and tool cleaning. Dispose of all wash water from tool cleaning to the sanitary sewer system. Never dispose of wash water to on-site yard Ili drains or street drains. 440i. Never dispose of any wash water to a storm drain. Clean paint brushes and tools covered with water-based paints in sinks connected to "'I sanitary sewers or in portable containers that can be dumped into a sanitary sewer. Brushes and tools covered with non-water-based paints, finishes,or other materials must be cleaned in a manner that enables imi collection of used solvents (e.g.,paint thinner, turpentine, etc.) for recycling or proper disposal. See BMP Info sheet 2 in Chapter 5 for information on disposal options. ur January 2005 King County Stormwater Pollution Prevention Manual ow rri war Building Repair,Remodeling, and Construction(continued) Use a storm drain cover, filter fabric, or similarly effective runoff control mechanism if dust,grit,wash water, or other pollutants may escape the work area and enter a catch basin. This is particularly necessary on rainy days. The containment device(s) must be in place at the beginning of the workday, and accumulated dirty runoff and solids must be collected and disposed of in an appropriate manner before removing the containment device(s)at the end of the workday. For example, a combination of a wet vacuum and brooms and dustpans could be used to collect accumulations of dirty runoff. Drain covers, filter fabric, and other containment devices are commercially available if effective runoff control cannot otherwise be provided. If you need to dewater an excavation site,you must filter the water before discharging to a catch basin or discharging off-site. You should direct the water through sediment filters or traps or use an equivalent method. The pH of water from dewatering activities must be monitored. If the pH is not neutral(7), discharge must not occur to a '1'" drainage system until the water is neutralized through an approved method. Dewatering must also be assessed for other pollutants that may not be removed by simple filtering of stormwater. If other pollutants are present, discharging the water to surface or stormwater systems may not be allowed. See Appendix D of the King County Surface Water Design Manual,"Erosion and Sediment Control Standards." fie Routine Maintenance: • Store and maintain appropriate spill cleanup materials in a location known to all. Ensure that employees are familiar with proper spill cleanup procedures. • Sweep paved areas as needed and collect loose particles for proper disposal. Wipe up spills with rags and other absorbent material immediately. Do not hose down the area to a storm drain. • Store toxic material under cover during precipitation events and when not in use(such as overnight).A cover would include tarps or other temporary cover materials. See Activity Sheet 3,"Storage of Liquid Materials Portable Containers." drr Oh wr King County Stormwater Pollution Prevention Manual January 2009 rr Building Repair, Remodeling, and Construction(continued) ADDITIONAL. BMPs The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control: Recycle or reuse left over materials. A catch basin insert configured for debris and sediment removal may remove some of the pollutants in runoff from this activity. Catch basin inserts require frequent maintenance to be effective. Carefully consider Nii this when evaluating your options. See BMP Info Sheet 10 in Chapter 5 for more information. err For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. Nil January 2009 King County Stormwater Pollution Prevention Manual wr REQUIREMENTS ACTIVITY SHEET A-31 Vehicle and Equipment Parking and Storage This activity applies to all types of parking lots(commercial,public,and private),retail store parking lots, fleet vehicle lots and yards (including rent-a-car lots and car dealerships), industrial areas,equipment sale and rental lots,and parking lot driveways. Stormwater runoff from these sites can be contaminated with toxic hydrocarbons and other organic compounds,oils and greases,metals, nutrients, and suspended solids. MINIMUM REQUIRED ROUTINE MAINTENANCE The following BMPs,or equivalent measures, methods, or practices are required if you have parking lots and driveways: Sweep parking lots, storage areas, and driveways as needed to collect dirt, waste,and debris. Do not hose down the area to the storm drainage system. if washing/pressure washing of the parking lot occurs,the wash water must be collected and discharged to a sanitary sewer or other treatment system. There are services that will clean parking lots and collect water for off-site disposal.Never drain washwater to the storm drainage system. wr See BMP Info Sheet 2 in Chapter 5 for information on disposal options. Gravel and dirt lots may require additional BMPs to prevent sediment laden water from leaving your site. Vehicles can track dirt out of parking and storage areas onto public roadways.Basic sediment controls as outlined in Appendix D ("Erosion and Sediment Control Standards") of the King County Surface Water Design Manual must be installed if other BMPs do not adequately control sediment laden water am from entering off site storm water conveyance systems or surface water. Wheel wash facilities may need to be considered if track out of mud becomes a problem. See Activity Sheet A-41,"Wheel Wash and Tire Bath Operations." ell January 2009 King County Stormwater Pollution Prevention Manual rr� iii Vehicle and Equipment Parking and Storage(continued) al ADDITIONAL BMPs 11111 The following BMPs are optional, unless the above minimum required BMPs do not provide adequate source control. , „ Encourage employees to carpool or use public transit through incentives. MI Encourage customers to use public transit by rewarding valid transit pass holders with discounts. "' A catch basin insert configured for sediment and also oil removal may • remove some of the pollutants in runoff from this activity. Catch basin inserts may require frequent maintenance to be effective. Carefully • consider this when evaluating your options. Clean up oil and antifreeze spills with absorbent materials. mii See BMP Info Sheet 10 in Chapter 5 for more information. IN Ili For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. mit Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. Ili Illi Ili Ilk wr King County Storm water Pollution Prevention Manual January 2009 di 1 1 7 REQUIREMENTS ACTIVITY SHEET A-32 7 Sidewalk Maintenance Iii This activity applies if you have sidewalks. Litter accumulation on sidewalks can contribute 7 suspended solids to stormwater runoff;runoff from sidewalks crossing driveways may also have hydrocarbon, oil and grease,and metal contaminants. If herbicides are used on sidewalks,toxic pesticide compounds, oils, and metals may also be introduced into stormwater. If crack sealants 7 or surface coatings are applied, toxic hydrocarbons, oils and greases, and metals may be contributed to stormwater runoff. Sidewalks and driveways are important areas to target for stormwater pollution control because they typically drain directly to stormwater conveyance wr. facilities.Note that BMPs for driveways associated with parking lots are described under Activity Sheet 31, "Vehicle and Equipment Parking and Storage." am MINIMUM REQUIREMENTS The following BMPs,or equivalent measures, methods,or practices are required if you are engaged in sidewalk maintenance: go Sweep sidewalks as needed to collect loose dirt and debris rather than pushing it into the street or gutter or hosing it down. Collected materials must be disposed of as solid waste. so Conduct spot stain removal instead of washing the entire sidewalk. Do not use soaps and detergents to wash down sidewalks. ON If pressure washing of sidewalks is needed,and soaps or other cleaners are used,the wash water must be collected and disposed of to the 111 sanitary sewer or taken off site for appropriate disposal. If only water is used,filtering devices at catch basins must be used to collect all solids and debris. so is is , , January 2009 King County Stormwater Pollution Prevention Manual on a Sidewalk Maintenance(continued) Mil ADDITIONAL BMPs 111, The following BMPs are optional unless the above minimum required BMPs do not provide adequate source control: Ili Use deicing salts and sands only when snow or ice is present(not as a preventive measure)and apply sparingly. Shoveling of snow is always isis preferred to dumping excessive amounts of deicing materials in an effort to avoid shoveling. If deicing salts are used,the residue and remaining granules must be swept up when the snow and ice have Mk melted, and reused or disposed of in your garbage. Oil Mil For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. ii Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. aiii we NI Iii w1 iw I. MI King County Stormwater Pollution Prevention Manual January 2009 ire us , 7 TREQUIREMENTS ACTIVITY SHEET A-41 Wheel Wash and Tire Bath Operations T If a site is not paved(e.g. gravel or compacted dirt), sediment and mud on vehicle tires can be 7 transported onto the adjacent paved roads. If track out cannot be controlled by constructing a typical rocked construction entrance, a wheel wash system may need to be installed. See Appendix D, Chapter D.3.4.3 of the King County Surface Water Design Manual for a more 7 detailed description of wheel wash operation requirements. ,,,,,, MINIMUM REQUIREMENTS The following BMPs,or equivalent measures, methods, or practices, as are required if are install a wheel wash or tire bath system to control sediment tracking onto adjacent roads: NI The wheel wash area must be paved. '•■ The water level in the wheel wash must be a minimum of 12 inches deep. MI Spray nozzles may be needed in muddy conditions. NS Wheel wash systems should be designed with a small grade change, e.g. 6 to 12 inches for a 10 foot wide ponding area,to allow sediment to MI collect in the low side of the ponding area to prevent re-suspension of solids. ris Required Routine Maintenance: Mid • A drain pipe with a 2 to 3 foot riser should be installed on the low side of the ponding area to allow for cleaning and refilling. WM „ill January 2009 King County Stormwater Pollution Prevention Manual ma i ON Wheel Wash and Tire Bath Operations(continued) ft • The wheel wash should start out with fresh water each day. ea NO ALTERNATIVE DESIGNS Closed loop wheel wash systems are preferred with the wastewater discharged to a sanitary sewer. NO Polymers for flocculation may be used in closed loop systems that discharge to the sanitary sewer. Contact your local sewer district and/or MO the King County Industrial Waste Program for authorization. Note:See Appendix D of the Surface Water Design Manual for NO additional information or wheel wash systems. at it For more information or assistance in implementing these best management practices,contact the King County Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. iii Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution discharges. IN ON Nii NO NO NO King County Stormwator Pollution Prevention Manual January 2009 rrr NO t wT 7 TREQUIREMENTS ACTIVITY SHEET A-43 7 Use of Soil Amendments on Construction Sites • The use of soil amendments(including cement treated base(CTB)and cement kiln dust(CKD)) on aim development sites must be approved by King County. The approval process is described in BMP Info Sheet#11, "Processing Requirements for Use of Soil Amendments on Construction Sites". as Note: Additional BMPs may be required to prevent adverse impacts to the public and/or the environment. It is the responsibility of the permit holder to remain in compliance with all other applicable local,state, and federal regulations. all Category of Action Specific Action CTB/CKD Best Management Practices 1. Materials Solubility A. If CKD is proposed,a chemical analysis of soluble pollutants of the is Source Analysis Testing& product to be used will be provided to the Washington State Specifications Department of Ecology(DOE)and the King County Department of Development and Environmental Services(DDES)in advance of any product is applied. MS B. CTB/CKD mixing percentage is anticipated to be approximately 3 percent to 5 percent. C. A Geotechnical Engineer will establish the mixing percentage for the on-site soils. ra D. All treatment procedures shall be directed,monitored,and verified by a Geotechnical Engineer. E. Soil amendments will never occur in excess of the ability of the on-site equipment and resources to meet all BMP requirements specified da herein. 2. Site Preparation Runoff A. Areas that are to be treated as shown on the plan are flagged off to Collection prevent equipment from leaving treated area and going onto untreated System areas,and to prevent unauthorized equipment from entering the treated area. B. Assessment of surface runoff collection points are noted. C. Cutoff trenches,collection sumps,and pumps are installed. los D. Sealed storage tanks will be properly sized to contain all runoff from treated areas. E. Sealed storage tanks shall be set up and ready for use to treat contact water. du P. An approved wheel wash will be constructed at the construction exit, typically a paved ramp sump that utilizes high-pressure washers. G. Copies of Treatment Plan,Approval,and Contingency Plan area are required to be located on site. iiiii 3. La -down A. Exposure of CTB/CKD materials to air to be minimized. Delivery y tankers shall be set up to place CTB/CKD directly into spreading Mixing trucks or equipment. Equipment B. CTB/CKD operations are only allowed during daylight hours. au C. Tarps or dust bags will be used over the discharge truck hose at NU January 2009 King County Stormwater Pollution Prevention Manual AM via Use of Soil Amendments on Construction Sites(continued) Category of Action Specific Action C'TB/CKD Best Management Practices unloading to prevent dust particles for becoming airborne. D. Unloading will occur at the lowest possible pump pressure. E. Unloading and mixing will be avoided on high wind days. PSAPCA Section 9.15 prohibits visible emissions of fugitive dust. F. CTB/CKD to be placed on ground by large wheeled spreaders designed for this purpose capable of measuring application. G. When spreading CTB/CKD it shall be kept 2-3 feet away from untreated areas boundaries to prevent the material from migration and contaminating outside the treatment zone. H. Treatment area will be kept damp/wet at all times CTB/CKD is being spread and mixed.Skirting around applicator/spreader and mixer is required to minimize CTB/CKD dust. I. CTB/CKD is to be roto-tilled into soil immediately after being spread onto soils and shall be done with a skirted tiller. J. Direct auguring machine that measures,spreads,and mixes CTB/CKD in one operation is preferred. K. Compaction will be complete within 2 hours after CTB/CKD application. A. Dust suppression by use of water trucks shall be used on areas where 4. Site Work Progress work on dry soil is performed and potential airborne contamination Management and Weather Conditions may occur. B. The volume of CTB/CKD allowed on site will be limited to the amount that can be used within a normal workday. Every effort will be made to forecast the daily delivery rate to match the daily on-site use rate. C. CTB/CKD will not be added to soils at a rate that exceeds the ability of on-site resources to immediately commence mixing and compacting. D. No work will occur in rain'heavier than drizzle,or under drizzle that exceeds 6 hours duration,or under any rainfall which generates runoff from the areas being worked. E. Should the weather change to stop the application,remaining rit CTB/CKD will be covered and contained to prevent stormwater from entering storage containment,and causing runoff. F. All vehicles and equipment leaving the treatment area/site must be cleaned/washed to prevent CTB/CKD from leaving site. Wash water will be contained and treated as needed. G. CTB/CKD contact water in the wheel wash will be removed from the site via a vactor truck for transport to an approved off-site treatment or disposal facility in accordance with all federal,state,and local laws and regulations;or,if permitted,to the sanitary sewer system. 5. Surface Water A. Surface runoff from the treated areas is to be collected and stored in onsite sealed treatment tanks. aui Collection B. A rigid schedule of TESC inspection,maintenance,and drainage controls will be maintained. C. Temporarily plugging and using detention facilities is not allowed as a storage practice. D. Runoff from compacted areas amended with CTB/CKD will be directed to previously sealed tank(s)until pH levels of water are verified to be within acceptable background water limits. No uncontrolled discharge or infiltration from the sealed tank(s)will be allowed. E. Drainage from areas amended with CTB/CKD within the past 72 hours will be prevented from co-mingling with any other project drainage. riri 6. Discharge Applicable A. Any and all discharges from this site will be in compliance with all King County Stormwater Pollution Prevention Manual January 2009 rr1 Use of Soil Amendments on Construction Sites (continued) Category of Action Specific Action CTB/CKD Best Management Practices Compliance Regulations applicable federal,state,and local laws and regulations pertaining to health and safety,water,air,waste,and wildlife,including the Federal Clean Water Act,Clean Air Act,and Endangered Species Act. Laboratory analysis of water is required prior to discharge to verify compliance. B. No infiltration is allowed to occur if pH readings are above 8.5 standard pH units,or below 6.5 standard pH units. C. A pH meter must be used to determine levels. pH meter is to be calibrated following proper QA/QC procedures. Fresh buffers are to be available to re-calibrate as needed. rn D. A log of turbidity and pH readings will be kept on site for inspection. E. All treatment of water must be directed,bench tested,monitored and verified by a qualified water quality specialist. F. Treated area water runoff shall not enter the permanent stormwater system. G. Stormwater drainage system within treatment area is to be cleaned out prior to use for regular water runoff conveyance from untreated areas. Water from cleanout is to be tested and treated following the approved treatment criteria. 7. Natural A. The preferred method of disposal of the treatment water will be Treatment and discharge to the sanitary sewer,provided a permit is obtained to do so. Discharge B. If infiltration is proposed,the area of infiltration is to be identified, capacity confirmed,and a contingency discharge plan in place in the event facilities fail to infiltrate. C. For infiltration,pH limits shall be strictly adhered to. D. If a permit to discharge to the sanitary sewer is not obtained,a National Pollutant Discharge Elimination System(NPDES)discharge permit is required from DOE. The retention volume of the lined pond(s)will also be increased to ensure complete control of the retained volume. Monitoring,bench testing,and controlled discharge rates,with prior approval by DOE,would be needed prior to discharge to an approved off-site surface drainage system. Sites that currently have NPDES permits will need to amend permit prior to discharge to cover this action. County approval is still required. E. Per KCC 9.12,discharges into receiving drainage systems shall not have acid or basic pH levels. rw F. Sealed storage tanks shall be used to reduce turbidity and pH before discharge. 8. Chemical A. Carbon dioxide sparging(dry ice pellets)may be used as the chemical Treatment treatment agent to reduce the water pH. B. Any means of water treatment to reduce pH will require an NPDES discharge permit from DOE. Permit would only be granted after bench testing performed by an independent qualified party. C. Active mixing will cease if the residual retention water volume falls did below the ability to treat and properly dispose of contact storm water. D. Discharge would only occur after the approval of DOE,following bench testing and consultation with DOE. E. All materials for chemical treatment will be on site and property stored,during all phases of CTB/CKD treatment. 9. Water Quality Monitoring A. Turbidity and pH will be monitored on a twice-daily basis,prior to operations and immediately upon ceasing operations,and these measurements will be recorded. Monitoring will also occur immediately after any storm event of inch in 24 hours,or water ++a January 2009 King County Stormwater Pollution Prevention Manual ar mit Use of Soil Amendments on Construction Sites(continued) Category of Action Specific Action CTB/CKD Best Management Practices migration to the retention pond(s),and the measurements recorded. If the pH approaches 8.0,monitoring frequency will increase. B. Turbidity and pH monitoring will occur in all treatment facilities, stormwater detention facilities,infiltration areas(if infiltration is used), and in all surface water areas adjacent to site where stormwater potentially discharges. Additional upstream surface water sites will be established to determine background levels of turbidity and pH. C. All water quality monitoring data will be conducted and evaluated by an independent,qualified party and conducted using professionally supportable test protocols and QA/QC procedures. 10. Reporting Ecology and A. All water quality monitoring data will be included in weekly DDES DDES TESC reports to DDES,and in weekly NPDES reports to DOE. B. All work,testing,and monitoring associated with the application of CTB/CKD shall be observed by engineer. The engineer shall prepare and submit a report to the assigned DDES project inspector indicating BMPs were/were not being met. C. Copies of all reports and logs will be available on site during the soil and surface runoff treatment activities. Other elements to consider: A. There may be very small amounts of concrete washout produced on- 11. Water Quality— Source Controls site as a result of construction of erosion control measures during Soils reclamation.Concrete washout,if any,would be retained in a lined enclosure of at least 6-ml visqueen or plastic sheeting,with no outlet. NW The washout retention enclosure would be isolated and separate from any CTB/CKD area runoff. Contents of the lined concrete washout enclosure will be removed from the site via a vactor truck for disposal in an approved off-site treatment or disposal facility in accordance with rtr all federal,state,and local laws and regulations. Signed trip tickets,as proof of proper disposal,will be provided to DOE and DDES. A. Areas amended with CTB/CKD for compaction after CTB/CKD B. Water Quality Cover Measures addition will be covered with plastic or visqueen sheeting,or other 116 pH impervious material by the end of each working day. B. Temporary cover will be maintained over all compacted areas amended with CTB/CKD until testing confirms that pH levels are stabilized to background measurements. [Note:Curing to avoid pH effects has no relationship to the rate at which material can be compacted in multiple lifts. Compaction will commence immediately after application and mixing,and multiple lifts will occur as quickly as each lift is compacted and ready to accept the next.] C. Should weather conditions prevent mixing,any unmixed CTB/CKD remaining on site will be enclosed in a sealed containment,such as portable silo,or removed from site. mil King County Stormwater Pollution Prevention Manual January 2009 tat � REQUIREMENTS ACTIVITY SHEET A-44 Dust Control and Soil Erosion and Sediment Control for Manufacturing and Other Commercial Operations This activity applies to manufacturing and other commercial operations that generate dust, sediment, and other particulate matter that may contaminate stormwater runoff if not properly controlled. Best management practices to control dust and other particulates are intended to stop dust and other particulates from being tracked or washed to the storm drainage system. If not controlled,stormwater runoff may be contaminated with suspended solids, toxic organic compounds, harmful pH, and metals. rur MINIMUM REQUIREMENTS The following BMPs,or equivalent measures,methods,or practices, are required if you are engaged in manufacturing or other commercial operations: air Sweep paved areas as needed where dust accumulates from commercial, manufacturing, and industrial operations. Use power vacuum cleaners and sweepers as appropriate to minimize generating airborne dust and for more efficient dust removal. Regularly clean equipment and vehicles subject to dust accumulation from operations.Never wash down equipment or vehicles to the storm drainage system. Stabilize or cover areas of exposed or disturbed soil where necessary to prevent soil erosion. See the King County Surface Water Design Manual, Appendix D, Erosion and Sediment Control Standards, for recommended erosion and sediment control practices and standards. Ensure employees are trained in the proper operating procedures to minimize dust from accumulating on the ground. WA rrr January 2009 King County Stormwater Pollution Prevention Manual IIIII Dust Control and Soil Erosion and Sediment Control for Manufacturing and Industrial Operations(continued) mu ADDITIONAL BMPs w The following BMPs are optional, unless the above minimum required BMPs do not provide adequate source control. A catch basin insert, may remove some of the pollutants in runoff from this activity. Catch basin inserts require frequent maintenance to be NI effective. Carefully consider this requirement when evaluating your NI 1 options. See BMP Info Sheet 10 in Chapter 5 for more information. . MI If appropriate, consider using dust filtration and collection systems such as bag house filters. IN Contact your local sewer authority and the King County Wastewater Treatment Division Industrial Waste Section to determine if it is Si acceptable to wash accumulated dust to the sanitary sewer. or Consider using approved dust suppressants such as those listed in the King County Surface Water Design Manual,Appendix D,Erosion and so Sediment Control Standards. See also the Department of Ecology Publication "Techniques for Dust Prevention and Suppression,"#96-433. Please note that not all dust suppressants are appropriate for use near n„ storm drainage systems or surface waters. ill For more information or assistance in implementing these best management practices,contact the King County in Department of Natural Resources and Parks Water and Land Resources Division at 206-296-1900. Reader Note:The above requirements are the minimum required BMPs.If these BMPs fail to prevent discharges to the storm drainage system,you will be asked to take additional measures to correct the continued pollution rS discharges. NI w illi King County Storm water Pollution Prevention Manual January 2009 rrr BMP INFO SHEET #2 Disposal Options Every business,property owner,and public agency in King County must dispose of solid and liquid wastes and contaminated stormwater properly.There are generally five options for disposal depending on the types and quantity of materials. These options are: (1)sanitary sewer system, (2) septic system, (3)recycling,(4) municipal solid waste disposal facilities, and (5)waste transportation and disposal services. Ordinary stormwater runoff is not considered to be contaminated to the point of requiring special disposal. Stormwater that is mixed with concentrated wastes requires special disposal,as discussed below. ia DISCHARGE TO SANITARY SEWER SYSTEM Process wastewater(depending on the pollutants and associated concentrations present)can be put into the sanitary sewer, subject to approval by the local sewer authority and the King County Industrial Waste Program. Animal waste can be disposed of in a sanitary sewer,subject to rr loading capacity constraints. The King County Industrial Waste Program may require that all stormwater discharged to a sanitary sewer be metered. Sewer fees may be collected on such discharges. The first priority is to discharge process water to a sanitary sewer using an existing plumbing connection or a new pipe connection. Whenever the diversion of any process water or other wastewater to the sanitary sewer is needed,the local sewer authority and King County must be contacted to obtain approval prior to discharging to the sanitary sewer. Pretreatment of discharges to remove some of the process water pollutants may be required to obtain approval. The local sewer authority and King County must also be contacted prior to the installation of any permanent connection to the sanitary sewer. The name of your local sewer authority is identified on your water and sewer bill. Sumps or other temporary storage devices may be useful for storing liquid wastes on a temporary basis if you cannot discharge to a sanitary sewer system. Consideration should be given to using a holding tank for process water if the volume of process water generated by the activity is not excessive. See BMP Info Sheet 4 for more information on holding tanks. The contents of the holding tank must be pumped out or drained before the tank is full. Several commercial services are available for pumping out sumps and holding tanks. These can be found in your telephone directory's yellow pages under the headings"Sewer Contractors and Cleaners" and"Tank Cleaning,"or on the King County Stormwater Services website at http://www.kingcounty.gov/environment/waterandland/stormwater/problem-investigation- line/drainage_maint_vendors.aspx. Septic system pumpout and hauling contractors must not be used for disposing wastes other than domestic sewage. They are not allowed to haul industrial wastes. January 2009 King County Stormwater Pollution Prevention Manual rre BMP Info Sheet#2,Disposal Options(continued) DISCHARGE TO SEPTIC SYSTEM If your site is not serviced by a sanitary sewer system,you probably have a septic system. Only liquid waste that is comparable to residential sewage in strength and constituency may be disposed of in septic systems.Hazardous chemicals cannot be disposed of in septic systems. Further,the septic system must be designed to accommodate the volume of suitable wastewater generated.Any changes in waste volume and constituency from those present when the system was permitted must be approved by the Seattle-King County Department of Public Health. int Stormwater,whether contaminated or not,may not be disposed of in septic systems. Animal waste may not be disposed of in a septic system designed for single family, multifamily or commercial properties. RECYCLING Recycling facilities are a recommended option for many commercial items, including used oils, used batteries, a variety of used auto parts,metal scrap materials,solvents,paints, and other solid wastes. There are a number of private businesses that accept materials for recycling. In addition there is an Industrial Material Exchange clearinghouse which facilitates the transfer of unwanted ' " materials from the generator to another business that can use them. The Industrial Material Exchange or IMEX website is http://www.govlink.org/hazwaste/business/imex. Process wastewater such as wash water can be recycled on-site as an alternative to discharge to the sanitary sewer. There are numerous products on the market that are designed to recycle wash water. Contact the King County Water and Land Resources Division at 206-296-1900 for more information. MUNICIPAL SOLID WASTE DISPOSAL FACILITIES Municipal solid waste disposal facilities are designed to handle solid wastes.Hazardous and dangerous wastes and many liquid wastes must be properly disposed of at an appropriate facility. Contact your local solid waste disposal facility or see http://your.kingeounty.gov/solidwaste/ garbage-recycling/index.asp for information on which materials are accepted at these facilities. Call the Business Waste Line at 206-296-3976 or see http://www.govlink.org/hazwaste/business wu for information on the proper disposal of oil, antifreeze, and other hazardous wastes. WASTE TRANSPORTATION AND DISPOSAL SERVICES 'I There are numerous services that can help you identify, quantify,transport, and dispose of any waste that you may generate. Many people have their wastes picked up by a disposal contractor. Costs of disposal vary considerably depending on the types of materials,quantities,methods of collection and transport, and whether the wastes are mixed. The rate the contractor charges will generally reflect the costs of testing and/or treating waste materials(if necessary) and the subsequent disposal. It is important to keep different types of wastes separated,so that the disposal contractor(s)can take them to the appropriate place(s) without causing inadvertent contamination problems elsewhere, and so that you are not paying too much for disposal of January 2009 V-6 King County Storrnwater Pollution Prevention Manual all wrr BMP Info Sheet#2,Disposal Options(continued) to materials that are not contaminated (e.g. regular garbage). If you are properly implementing your BMPs and collect contaminated waste materials for proper disposal,your efforts are compromised if a disposal contractor subsequently disposes the contaminated materials as regular garbage. Therefore, it is essential to be familiar with disposal alternatives and the different types of contractors for each disposal option. .ir The Seattle-King County Department of Public Health's Waste Characterization Program serves hazardous waste generators in Seattle and King County that have questionable wastes. Information supplied by the generator on questionable wastes such as sludges, sandblast waste, treated wood,and contaminated soils is reviewed by the Health.Department. Permits are issued for those wastes that will be allowed in the garbage. The dangerous waste regulations as well as other criteria are used in the decision process. The disposal of wastes is the responsibility of the generator. Before agreeing to let a company handle your waste, it is recommended that you ask for(and check)the company's references. All waste collected by the company should be delivered to an authorized site. Make sure you keep copies of all your transactions. Transfer of waste to a vender does not release you from legal obligation for disposal to a licensed disposal facility. rr • all I war January 2009 King County Stormwater Pollution Prevention Manual BMP INFO SHEET #3 Covering Options: Tarp, Roof, or Awning One of the most effective actions a person can take to prevent stormwater contamination is keeping potential pollutant generating materials out of the rain. There are numerous options for et covering an activity or stored materials.This BMP, combined with the prevention of stormwater runon into the covered area,can be as effective as storing materials or conducting activities indoors. The simplest cover is a tarp or other nonstructural device. Building a permanent structure may require a building permit and must comply with all applicable building and fire codes. These building requirements may make some structures too expensive to be practical. Contact the King County Department of Development and Environmental Services for information on building permits and requirements for a roof ilmAIN structure. , ' " ' °:' 4 Many activities,such as stockpiling of raw •or erodible materials or storage of drums, can be effectively covered with a heavy plastic tarp made of impermeable material. Weights such as bricks,tires,or sandbags must be used to anchor the cover in place. Tarp Covering Care should be taken to ensure that the tarp covers the stored materials completely and that stormwater runon does not penetrate significantly under the cover. If several tarps are used to form a cover,they should be tethered together or overlapped. If necessary,pins or stakes should be used to anchor the tarps to the ground.The tarp/cover will be easier to keep in place and will last longer if some form of wind protection is possible. Attempts should be made to locate stockpiles in areas where winds are minimal. The tarps must be in place when the material is not being used. The tarps must be inspected weekly to ensure that no holes or gaps are present. Tarps are inexpensive,and therefore are a cost effective BMP for many activities. This BMP can be combined with containment for better effectiveness. See BMP Info Sheet 5 for more information. The other option for covering is the use of a roof. The particular roof cover option used at a given site is subject to the site layout, available space, affordability, and limitations imposed by other regulations. The area of the roof should be sufficient to prevent any precipitation from reaching the contents underneath. This BMP should be implemented in conjunction with N' January 2009 V.8 King County Stormwater Pollution Prevention Manual rr rug I 1 BMP Info Sheet#3, Covering Options(continued) prevention7 of stormwater run-on into the covered area. BMP Info Sheet S presents information on containment/run-on prevention.Examples of various structures are shown below. If ,;,,,, ,<l l�')) ,f,4 ,),„ . ,,,,,„,„,„. , ,,,,,,.„.,,,,,,,, s, ,,.,y,,,,,t,,,,..,,,,,,4,,,„9,t,y‘ , , ._, - .. T f , r ,, ,,„,...,: , (a�. . ,„, >r� t 1 R,,, ,,. � t �? �4 gg „it,,r,„ , ),,,, g,...„.,„„`, , ,„' -, il ik, 7 I }' ?Wd., h �i9 r +u 6 i , � ,+�s�`,�',t m 5^ to Lean-To Structure ''i •`- i Stand-alone Canopy dm There are also numerous prefabricated storage sheds that can be purchased to enclose and cover materials. This may be a preferred alternative on some sites.Before purchasing these structures ensure they meet applicable building and fire I"' codes. Another option for covering an activity or stored .rr ` materials is to use an overhanging awning of k• • q y � sufficient size to prevent precipitation from idi , reaching the contents underneath. This cannot be a la an awning already in place over a public right-of- way such as a sidewalk in front of a store. Many of the building permit, fire code, and zoning code la requirements mentioned above apply to these structures. Overhanging Awning MA Activities such as fueling operations may be covered by an island-type overhanging roof. err This roof arrangement is supported by columns along the center of the structure i rather than at the corners,enabling vehicular ''. > = , , ` i` ju` ' ; traffic underneath while still providing ;;1 WU sufficient protection from precipitation. ice: Island-Type Overhanging Roof et Mill tam January 2009 King County Storm water Pollution Prevention Manual au 1111 1111 rrr BMP INFO SHEET #S Secondary Containment and Elevation: Surround with Dike or Berm, or Elevate These BMP options can be an effective means for prevention of uncontaminated stormwater from flowing into or onto a contaminated activity area. These BMPs also explain containment of spills in activity areas where pollutants may be present. These BMPs may be less expensive to implement than paving the area and providing storm drainage collection, but can also be more rru difficult to maintain if stormwater ponding occurs inside a secondary containment dike. If a curb,berm,or dike is used to prevent stormwater run on to a covered area,and the area is paved or otherwise impermeable, it should be covered so that precipitation will not pond inside the secondary containment area. In some instances,run on prevention can be accomplished by placing a curb or berm on the upslope sides of the area. Elevating the activity or stored materials 11111 with a platform or other type of pedestal can also prevent stormwater run-on. Secondary containment may be achieved with concrete curbing,an earthen berm,a tub such as a plastic wading pool, or some other dike structure, depending on the activity,its size,and resources available. If a curb, berm, or dike is used to contain possible spills, and other containment regulations(such as fire codes or Washington State Department of Ecology requirements) do not apply,the containment area must be sized to hold a volume of 110 percent of the volume contained in the tank/containers. Secondary containment without a cover generally will allow rainwater to accumulate in the containment area. Contaminated water cannot be drained from the containment area to surface water or the ground. The water must be collected and disposed of either into a sanitary sewer, a stormwater treatment system,or at a licensed decant facility. During the wet season, secondary containment without any cover provisions can lead to frequent disposal of relatively clean water that can be costly.In addition, monitoring may be needed to determine if the water is contaminated. If the stormwater is typically clean,or if a stormwater treatment system is present s, on-site, a valve must be installed in the secondary containment area so that excess stormwater can be drained out of the containment area and directed either to storm drainage facilities(if clean) or into the stormwater treatment system(if contaminated),whichever applies. If a discharge valve is installed in the containment area,the valve should always be kept closed unless excess stormwater is being discharged, so that any spills that occur within the area can be contained.Local sewer authorities and the King County Industrial Waste Program may not allow discharges from a large containment area into the sewer system. Discharge authorizations from the local sewer district must be obtained prior to releasing water from containment areas into the sanitary sewer system. irw January 2009 V-12 King County Stormwater Pollution Prevention Manual lid BMP Info Sheet#5, Secondary Containment and Elevation(continued) If containment is used for stockpiles of erodible material,a dike,berm, or filtering device such as basic erosion control must be placed on at least three sides of every stockpile to act as a barrier or filter to treat runoff and to remove suspended solids. If the containment device is three-sided, the open side should not be on the upslope or the downslope side of the stockpile, if feasible. The dike or filter can be made of hay bales, silt fencing(filter fabric),concrete curbing, ecology blocks, compacted earth with grass planted on it,or similarly effective materials. Timbers treated with creosote or other preservatives should not be used because they can leach contaminants into runoff. If ponding occurs due to a sturdy dike, filter materials should be used instead. All filter materials used around stockpiles must be maintained to work effectively and must be replaced when necessary(see Appendix D of the Surface Water Design Manual for other options. '101 For storage of small items,a simple containment device is a tub or wading pool.A rubber or plastic wading pool may be sufficient for t f ; h` containment of some stored materials that do not require a lot space,such as storing is rg remodeling and painting materials, and _ temporary storage of wastes in drums. These small storage devices should also be covered with a tarp or other cover. An example of this is shown to the left. You must also take into Simple Containment Devices consideration the type of materials stored to ensure adverse chemical reactions do not occur with the containment material. It should also be noted that neglect and poor maintenance can render the secondary containment useless. Maintenance of containment devices must be stressed, as maintenance is essential for containment to work as intended. Commercial products are available that are a combination of containment boxes/elevated pedestals. These commercially available products prevent stormwater run-on by elevating containers of liquids (such as drums)off the ground and collecting spills and drips inside the pedestal box. ,� „ - s fret %r. , Containment Dike Containment Curb itai err January 2009 • King County Stormwater Pollution Prevention Manual air BMP INFO SHEET #7 Maintenance of Drainage Systems Many commercial, industrial,residential and public agency properties have storm drainage flow control and water quality systems to capture and treat stormwater flows. Most of these systems 1116 have catch basins as key components. Catch basins are typically located along curbs,at low spots in parking lots,and where stormwater conveyance pipes combine flows. Storm drains collect runoff that directs flows into basins and pipes that are located underneath parking lots and storm Ilk drain grates.Most catch basins have a few feet of storage in the bottom or sump. This storage area is intended to trap sediment,debris,and other particulates that settle out of stormwater,to prevent clogging of downstream pipes and to keep solids from being flushed into receiving waters. Anyone who has ever looked into a catch basin can attest to its ability to capture dirt, leaves, twigs, litter,and a variety of other materials that make for a mucky buildup in the bottom. However, if the sump(the bottom of the catch basin) is full of solid material, everything in the incoming runoff passes straight through to an outflow pipe. The bottom (or sump) in catch basins is must be cleaned out periodically so they can continue to trap solids from stormwater runoff. Routine maintenance practices at all sites with storm drains and catch basins must include cleaning/removal of sediment or solids from these important drainage system features. If catch basins are not cleaned,they can actually contribute to receiving water pollution problems as MIN trapped solids, and stagnant,polluted water in sumps can be flushed out in large quantities with turbulent storm flow conditions. Check your catch basins annually for needed maintenance timed to occur before the rainy season. For organizations with large numbers of catch basins(greater than 50 per site), inspections may be conducted on a"circuit basis"whereby sampling of representative catch basins, including the lowest one in the circuit, within each circuit is inspected to identify clean- out needs for the circuit. The annual catch basin inspection schedule may be changed as appropriate to meet the maintenance standards based on maintenance records of double the length of time of the proposed inspection frequency. Catch basins must be cleaned out when the solids, trash,and debris in the sump reaches one-half of the depth between the bottom of the sump and the bottom(invert)of the lowest inflow or outflow pipe connected to the catch basin or at least 6 inches below this invert. The rate at which a sump fills with solid material is quite variable, and depends on the characteristics of the drainage basin feeding into it. If activities that generate a lot of sediment are taking place in the drainage area that contributes stormwater flows to a catch basin, such as exposing soils due to construction or landscaping,stockpiling erodible materials, or if your site is not paved and has heavy traffic use on dirt or gravel surfaces.,the sump will fill up relatively quickly. Therefore, sites with activities generating a lot of sediments and other debris will have to inspect and clean out their catch basins more often. MU January 2009 V-15 King County Storm water Pollution Prevention Manual UN i BMP Info Sheet#7, Maintenance of Drainage Systems(continued) Other components of drainage systems include ponds,tanks,and bioswales. These components f must also be maintained to ensure your drainage systems functions as designed.Vegetation in ponds and bioswales must be mowed or thinned, and sediment accumulations must be removed. Maintenance of ponds,tanks, and bioswales is generally beyond the ability of the typical property owner. Drainage system maintenance contractors are available to complete this work. If you clean out/maintain the catch basins yourself, you may dispose of up to one cubic yard of solid material as solid waste in your regular garbage. If you exceed this threshold you are encouraged to contact a company offering catch basin cleaning services. You can locate a `1' cleaning service by calling the King County Water and Land Resources Division at 206-296-1900 for a list of firms performing drainage system maintenance services or in your telephone directory's yellow pages under headings like"Sewer Cleaning Equipment and Supplies,""Sewer Contractors," and"Tank Cleaning."All of the solids and stagnant water collected from catch basin sumps must be disposed of properly. None of the sump contents can be flushed into the catch basin outflow pipe. Depending on the nature of the pollutants in the sump, and the associated types of activities taking place on the site,the sump contents may need to be handled as contaminated waste. Contractors who perform catch basin clean-out services are required to follow appropriate disposal requirements. ■r Frequent sweeping of paved parking and storage areas,covering pollutant generating activity areas, and containing runoff from activity areas will help reduce catch basin and drainage system cleaning frequency,and may save time and money spent on required maintenance. All businesses and public agencies should set up maintenance schedules for all of their BMPs so that coordinated BMP efforts result in reduced catch basin and drainage system maintenance and r cleaning. rrr rrr rw January 2009 • King County Stormwater Pollution Prevention Manual dr BMP INFO SHEET #8 1�rrr Water Quality Treatment BMPs Water quality treatment BMP options may be required if operational or basic structural source controls do not adequately address pollutant discharges from your site. Source control BMPs, as irir presented in Chapter Three,must always be implemented before treatment BMPs are considered. mie The following information describe some basics of water quality treatment systems/facilities. Design and construction details can be found in the King County Surface Water Design Manual (which contains relevant information for the treatment BMPs discussed). A private vendor specializing in the treatment system or an engineering consultant can provide information on treatment systems. Milk Businesses and agencies are allowed to select a treatment BMP other than those presented in this manual if they follow the adjustment process as outlined in the King County Surface Water Design Manual or if they complete the Alternative BMP request in this manual. Table 5.2 (next page)presents a brief description of some typical water quality treatment BMPs. Table 5.3 presents water quality treatment BMPs for removing specified pollutants. One treatment BMP usually cannot treat all pollutant problems. Each BMP is designed for a specific purpose and is capable of removing only specified pollutants. If you decide to install a water quality treatment BMP,always ensure that it is removing the pollutant of concern from your site runoff. se wrY January 2009 King County Stormwater Pollution Prevention Manual 1111 411 BMP Info Sheets#8, Water Quality Treatment BMPs(continued) TABLE 5.2 WATER QUALITY TREATMENT BMPs TREATMENT BMP BRIEF DESCRIPTION ghig Oil/Water Separator An underground vault specifically designed to remove oil and grease. Also will remove floatable and some settleable solids. Catch Basin Insert A filtering device that is installed within an existing catch basin and uses various sorbent materials and settling space to collect pollutants. Catch Basin Sump and Vault Filter A device similar to catch basin inserts,only larger and placed underground. Leaf Compost Filters A filtering device that is installed above or below ground and uses leaf compost to remove pollutants from stormwater. Wet Pond,Constructed Wetland, A wet pond is a stormwaterpond that retains a . rmanent pool of Wet Vault water.A constructed wetland is similar to , wet pond,but shallower me and supporting wetland vegetation in large areas.A wet vault is an underground,covered,engineered structure that retains a permanent pool of water. Vegetated Biofilter-Biofiltration A biofiltration swale is a long, gently sloped ditch or depression Swale and Filter Strip designed to treat water as it passes throughvegetation. Grass is am the most common vegetation. A filter strip is a grass area,wider than biofilters,also with gentle slopes. Water usually enters as sheet flow from the adjacent pavement. Sand Filter A structure placed in the landscape,with grass grown on top,or in vaults. Stormwater passes through the sand allowing particulate pollutants to be filtered out. mm Infiltration A normally dry basin which temporarily stores stormwater until it soaks through the bottom and sides of the basin, and infiltrates into surrounding soil. Chemical Treatment See the King County Design Manual for allowable chemical treatment including chitosan and alum and CO2 sparging.MM January 2009 V-18 King County Stormwater Pollution Prevention Manual wr d BMP Info Sheets#8, Water Quality Treatment BMPs(continued) TABLE 5.3 APPROPRIATE USES FOR WATER QUALITY TREATMENT BMPs POLLUTANTS TO REMOVE APPROPRIATE TREATMENT BMPs Oil/Grease Oil/water separators;catch basin inserts; catch basin IIII Sources: vehicle and equipment areas, sump/vault filters,leaf compost filters. industrial areas, food preparation tin Sediments/Solids For coarse sediments-Wet pond/vault; constructed wetland Sources: sand/gravel storage,construction (with forebay);vegetated biofilter;sand filter;catch basin sites,unpaved areas,agriculture/livestock insert;catch basin sump/vault filters;leaf compost filters. uses For fine sediments-Wet pond/vault;constructed wetland rr (with forebay);vegetated biofilter;sand filter.Also see catch basin sump/vault filters. Chemical treatment Phosphorus Compounds For particulate phosphorus-Wet pond/vault;constructed Sources: detergents/cleaners,fertilizers, wetland(with forebay);vegetated biofilter;sand filter. If organic matter,animal wastes dissolved phosphorus must also be removed- a large "oversized"wet pond or sand filter. Nitrogen Compounds For particulate nitrate-Wet pond/vault;constructed wetland Sources:fertilizers,animal wastes,organic (with forebay);vegetated biofilter;sand filter. For dissolved n> matter nitrate-constructed wetland. Metals For particulate metals-Wet pond/vault;constructed wetland Sources:industrial areas,vehicle and (with forebay);vegetated biofilter; sand filter.For dissolved equipment areas,paints,pesticides metals -leaf compost filter or constructed wetland. Fecal Coliform Bacteria There is no treatment BMP that can reliably reduce fecal Sources: animal wastes;fertilizers coliform bacteria to acceptable levels. Some studies have shown constructed wetlands provide some benefit. pH A constructed wetland can neutralize some ranges of pH. Sources:metal plating,printing/graphic industries, cement/concrete production, cleaners BOD and Trace Organics For particulate BOD-see"particulate nitrate"above. For lik Sources:organic debris,food wastes,some dissolved BOD-A constructed wetland will remove some chemical wastes dissolved BOD and trace organics; more reliable performance requires activated carbon. rr, January 2009 V-19 King County Stormwater Pollution Prevention Manual mil rr� BMP INFO SHEET #11, Processing Requirements for Use of Soil Amendments on Construction Sites Purpose: This Info Sheet establishes procedures for implementing BMPs when using soil amendments on construction sites. See Activity Sheet 43, "Use of Soil Amendments on Construction Sites"for a description of the BMPs. This document outlines an expedited review process and typical approval conditions that will allow contractors and builders to use soil amendments without impacting water quality.Additional BMPs may be required based upon site specific conditions that may warrant more protection.This policy is limited to those amendments, defined below, commonly known to add stability to sloppy soil conditions but can alter water runoff quality. Use of Soil Amendments: It is sometimes a construction practice to add soil amendments to the surfaces of some construction areas in order to stabilize the ground for building. This practice includes placing an additive on the ground then mixing with the soil to a specified depth and finally compacting the mix. When mixed with the soil,the moisture in the ground may allow these additives to create a chemical reaction that cures similar to concrete and may absorb excessive moisture to allow soils to be compacted. The end result is a stable site for constructing a road or building pad. Because soil amendments may be rich in lime content and other material,water runoff from these areas can be affected. If not controlled and treated,this could result in a degradation of water quality and natural drainage systems. Because these additives come in a fine powder form, the actual application can create fugitive dust. When mixed with water, some additives can become corrosive. Authority: KCC 9.12.025 prohibits discharges of polluted or contaminated water into surface or storm water drainage systems. The purpose of this statute is to protect surface and ground water by regulating the discharge of potentially contaminated surface water. If soil amendments arc proposed with an initial application, an environmental review is required, under SEPA, which assesses impacts,provides public input and mitigated conditions for its use. King County Road Standards, Section 4.02 also requires an engineered design for use of a soil amendment on road surfaces or around drainage systems. The design may incorporate a thorough assessment of soil composition and laboratory analysis. The Surface Water Design Manual authorizes DDES to adopt BMPs for the control and protection of surface water. Currently, for all sites,the BMPs established in this policy are the minimum standards that shall be applied. sal January 2009 V-25 King County Stormwater Pollution Prevention Manual rir AMP Info Sheet#11, Processing Requirements for Use of Soil Amendments on Construction Sites(continued) Definitions: The following are definitions of soil amendment products that are allowed for use under these procedures: 1. Cement Kiln Dust(CKD)is a by-product in the manufacturing of cement'. 2. Cement Treated Base(CTB) utilizes Portland Cement Type II as the soil additive. Procedure: An applicant may apply for use of soil amendments allowed under this policy anytime during the permit application review or after the permit has been issued and site construction is underway. After making a submittal to DDES,the applicant may receive approval rr conditions. Conditions may vary from site to site, but typically will include many of the BMPs included in this policy. Applicants should identify any use of soil amendments as early in the process as possible to avoid delays in obtaining approval for use during the construction phase. If a site has known soil and water conditions that might make work during rainy periods difficult,they may want to plan to use soil amendments on their site. Obviously, if this issue is addressed at the permit review phase, implementation in the field can occur without delay. However, because of the potential risks of surface water pollution discharge and required treatment,an environmental assessment will be necessary before conditions for use can be established. Limitations: This policy applies to intended the use of soil amendments in areas that will be covered impervious surfaces.For areas not covered by impervious surfaces,additional reviews, study,and BMPs may be required. In addition, alterations to original approved use plans will i" require a resubmittal for approval.Approval for the use of the soil amendments in unincorporated King County can only occur by strictly following the procedures contained herein and not by any other approval obtained from DDES. Submittal Requirements: To obtain approval for the use of soil amendments allowed under this policy,the applicant shall prepare a submittal package to DDES that includes the following: • Letter to DDES requesting use of soil amendments at a construction site allowed under this policy. • Document or letter attachment that identifies source of materials and description of mixing j"r" and laydown process,plan for disposal of treated contact water, sanitary sewer permits and/or BMPs,and special precautions proposed to prevent the contamination of surface or stormwater drainage systems,other than 'sealed'drainage systems.. • Site Plan: Show a site plan map which: 1) Shows overall grading plan showing existing and proposed contours. Illb CKD is collected by air pollution control devices used to clean kiln exhaust during the manufacturing of Portland Cement.EPA has classified CKD a non-hazardous waste product provided management standards are followed for groundwater protection and control of fugitive dust releases. CKD should not to be confused with Fly Ash,which is a by product of burning coal or wood and incineration of 1111 other material.Fly ash can contain major oxides and trace metals,depending upon the fuel source,and is considered too hazardous for use as a soil amendment.Using this product is not authorized or endorsed by DOE or King County. ro January 2009 • King County Stormwater Pollution Prevention Manual go dili BMP Info Sheet#11, Processing Requirements for Use of Soil Amendments on Construction Sites(continued) 2) Identifies sensitive areas and permanent or temporary drainage facilities. 3) Identifies areas that soil amendment is planned. 1111 4) Shows depths of application and percent of amendment to be used. 5) Shows location of special wheel wash facility. 6) Shows location of collection and conveyance swales or pipes for contact water. 7) Shows location of sealed storage/treatment tanks or temporary ponds(fully lined). 8) Identifies any discharge point from the site into natural drainage systems. �r. 9) Includes soil log locations that identify seasonal high groundwater areas. • Report and analysis of engineering mix design which includes depths of application and percent of amendment usage. • For proposals that use CKD and CKD additive,provide analysis of source material for soluble contaminants. Include a description of fuel source. • Monitoring criteria, including locations for pH and turbidity testing. • Provide contingency plan should use of soil amendment and site and weather conditions result in polluted or contact water entering natural drainage systems. • Provide contact information or water quality specialist assigned to monitor application of soil amendments and BMPs. If the project is under construction,the applicant shall contact the DDES inspector assigned to the project to initiate a review for compliance with the BMPs and requirements herein. Otherwise contact the planner or engineer assigned to review the permit or land use application. Review and Approval: Once the review has been completed, the applicant shall be notified by letter which stipulates the conditions of approval. Prior to authorizing the use of soil amendments at the site,the applicant shall provide a special restoration financial guarantee cash deposit in the amount as determined by the existing,established processes.Note: It remains the applicant/contractor's responsibility to comply with any other applicable state or federal regulations such as use of NIOSH respiratory protection,safety goggles, gloves and protective clothing whenever using hazardous materials. Applicable Standards: Typically, all proposals using soil amendments in unincorporated King County shall have these a conditions as standard requirements: 1. Prior to any application of CKD/CTB,the general contract shall hold a preconstruction meeting with the assigned DDES inspector at least 3 working days in advance. 2. CKD will not be permitted for use in areas adjacent to or in proximity to wetlands and streams areas. CTB may or may not be permitted in these areas. 3. Areas not covered by impervious surfaces: • CKD will not be permitted in areas that will not be covered by impervious surfaces. • If CTB is proposed in these areas, an analysis of whether or not the soil amendment will *'! change the post-development runoff characteristics and the permanent stormwater facilities were sized appropriately shall be submitted for review. Use of CTB in areas not permanently covered by impervious surface may require re-sizing of the permanent stormwater facilities. January 2009 King County Storm water Pollution Prevention Manual rr� BMP Info Sheet#11, Processing Requirements for Use of Soil Amendments on Construction Sites(continued) illik 4. If CKD is proposed, the contractor shall provide mill certificates verifying the product composition. The contractor/developer must be prepared to follow BMPs during and after soil treatment and be prepared to treat runoff from the treatment area(s) immediately. All stormwater collection systems must be in place and all equipment(pH meters,dry ice,etc.) must be onsite. 5. Collection of stormwater (see BMP# 5): • Stormwater from the application area shall be kept separate from and prevented from co- mingling with uncontaminated stormwater. • During the application of CKD/CTB, stormwater runoff shall be collected in temporary collection systems and shall not be allowed to enter the permanent facilities. Permanent drainage systems shall be capped to prevent contact stormwater from entering the inlets of the catch basins. Stormwater from the application area shall not be collected in the temporary/permanent detention ponds, even if the underlying soils are 'impermeable'. 6. Treatment: If necessary,pH adjustment shall be done in the collection tanks or temporary 1111' ponds and not in the permanent detention ponds. 7. Disposal options: The proposal to use CKD/CTB must contain a disposal plan that may include one or a combination of sanitary sewer or approved offsite disposal. Treated contact is water may be discharged to the sanitary sewer if authorizations are obtained from the King County Industrial Waste Program (206-263-3000)and the local sewer district. All discharge conditions (e.g. pH, settleable solids) must be followed. If a sanitary sewer is not available at the site,contact water may be transported offsite to an approved site for disposal and proof of proper disposal must be submitted to King County. All authorizations for disposal shall be obtained prior to CKD/CTB application. • Infiltration: Depending on the site conditions,pH-adjusted stormwater may be infiltrated. Prior to infiltration,pH must be between 6.5 and 8.5. • Surface Water: Contact water from the application area shall not be discharged to surface waters, even if treatment has adjusted the p1f I. 8. Emergency backup plan: An emergency backup plan must be prepared and ready to implement to handle large quantities of stormwater. 9. Monitoring shall be conducted to determine that contact stormwater is not leaving the site. Offsite monitoring shall also be conducted to identify impacts to adjacent water bodies. rr. Bonding may be required to cover mitigation of impacts and restoration. 10.A soils specialist will establish the mixing percentage for onsite soils. Soil amendments will never occur in excess of the ability of the onsite equipment and resources to meet all BMP requirements. 11. For sites one acre or larger, a National Pollutant Discharge Elimination System (NPDES) Construction Stormwater permit must be obtained from DOE.NPDES permits and 'Stormwater Pollution Prevention Plans'(SWPPPs)must be amended and the use of CKD/CTB must be approved by DOE prior to application. The contractor/developer shall comply will all federal, state, and local regulations. A health and safety plan may be required for the protection of King County inspectors. Additional BMPs may be applicable depending on mix design, proximity of wetlands or streams rr (e.g. within 300 feet of class/type I and 100 feet or less for other types)and site conditions. January 2009 V-28 King County Stormwater Pollution Prevention Manual 1 VI `TECHNICAL ASSISTANCE INTRODUCTION The quality of stormwater runoff from commercial and industrial developments, residential areas, and agricultural lands is of increasing concern with respect to protection of water resources in King County. Much of our water pollution is due to pollutants that are washed off the land during and following storms,eventually degrading surface and ground waters. Runoff from urban areas is one of the leading causes of water pollution in the United States.The Best Management Practices (BMPs) in Chapter 3 (for business and multifamily activities)and Chapter 4 (for single family residential activities)serve to reduce the amount of pollutants entering our water. This chapter provides information on where you may obtain technical assistance for understanding, choosing, and designing appropriate BMPs for your property. The information is identified according to subject matter and function(such as selecting appropriate BMPs,hazardous waste management, landscaping,and automotive industry). This is not an inclusive list of sources of assistance but should provide a jump start on locating information. In addition, a quick-reference phone list is included at the end of the chapter. TECHNICAL ASSISTANCE There are a variety of organizations and programs that can offer technical assistance in selecting and implementing BMPs. These sources of information and assistance range from local and regional programs to state and federal agencies. Governmental entities as well as private sector associations are available to provide suggestions and guidance regarding the most effective and appropriate measures to take in order to protect King County's valuable water resources.For best results,local organizations or programs should be contacted before federal or state agencies are consulted. This section provides names,contact information, and brief descriptions of several sources of information and assistance available to the businesses and residents of unincorporated King County. In addition to the personal assistance offered by many organizations and programs, there is also a broad range of written materials available to help businesses and residents select,design,and understand applicable BMPs for water quality protection. Many of these can be obtained free of charge from local associations or governmental agencies. This section also provides information regarding several publications, manuals, books, and newsletters that can help in the formation of January 2009 King County Storm water Pollution Prevention Manual pollution prevention strategies to protect King County's water quality. so GENERAL BMP SELECTION King County Water and Land Resources Division The Water and Land Resources Division has water quality engineers available to provide free on-site consultations to businesses and residents for assistance in implementing the water quality BMPs in this manual. For information, or to request an on-site consultation, contact: King County Water and Land Resources Division 201 South Jackson, Suite 600 Seattle, WA 98104 Telephone: (206)296-1900 Web site: http://www.kingcounty.gov/environment/waterandland/stormwater King Conservation District The King Conservation District can provide technical assistance for a variety of stormwater pollution control efforts related to residences, small businesses, commercial farms,and hobby farms.Advice is available on effective erosion control practices and methods for specific site conditions, including stream bank stabilization and slope stabilization techniques.The Conservation District also has experience in controlling water quality problems on commercial and hobby farms. Personnel are available for site visits and can assist in effective stormwater pollution prevention planning for individual sites.The Conservation District can prepare farm management plans to assist in compliance with King County Code 9.12, Water Quality. The Conservation District does not assist with BMP implementation on large business sites (such as malls) or industrial sites. For information, contact: King Conservation District 935 Powell Avenue SW Renton, WA 98055 Telephone: (206)764-3410 Trade/Business Associations Local trade or business associations can be valuable sources of information for specific r ri BMP applications on a business property. Many trade and business associations have developed pollution prevention information for the benefit of their members that is unique to their specific types of operations. Contact the appropriate trade or business association to obtain information,BMP assistance, and help in locating other businesses that are working out similar problems. rii January 2009 King County Storm water Pollution Prevention Manual rr► it SANITARY SEWER AGENCIES tilli King County Wastewater Division—Industrial Waste Program The Industrial Waste Program provides information on what can be discharged to the sanitary sewer and works with businesses to meet individual discharge requirements. Industrial Waste can also assist with information for rerouting illicit storm sewer connections to the sanitary sewer. For information, contact: King County Industrial Waste Program 130 Nickerson Street, Suite 200 Seattle, WA 98109 Telephone: (206)263-3000 Web site: http://www.kingcounty.gov/industrialwaste Local Sewer Agency If you are not served by King County, contact your local sewer agency for information on allowable discharges. The name of your local sewer agency is identified on your water and sewer bill. w HAZARDOUS WASTE MANAGEMENT The Business Waste Line—(206) 296-3976 The Business Waste Line has staff to answer questions from small businesses about hazardous waste. The Waste Line staff make referrals to other agencies and vendors and send out printed materials.The Waste Line may also be used to report complaints and hazardous waste violations. Calls are anonymous if requested. Ala For information, contact: The Business Waste Line Telephone: (206)296-3976 Web site: http://www.govlink.org/hazwaste/ Hazardous Waste Library The Hazardous Waste Library offers small businesses, citizens, agency staff, and local officials one place to go for hazardous waste information. The library has a wealth of onsite resources and is linked by computer to environmental information throughout the world.Anyone in King County can request help in person or by phone. The library can track down information, drawing on contacts in the community,government,trade associations,various industries,and other libraries. For information, contact: Seattle/King County Hazardous Waste Library 130 Nickerson Street, Suite 100 January 2009 King County Stormwater Pollution Prevention Manual Seattle, WA 98109 Telephone: (206)263-3050 ma Web site: http://www.govlink.org/hazwaste/ Hazardous Waste: A Management Guide for Local Businesses This booklet contains information to help businesses that generate small quantities of hazardous waste understand and apply the laws that affect them. The guide includes information on hazardous waste regulations, a service directory, and sources to contact for more information. To obtain a copy of this guide, contact: The Business Waste Line Telephone: (206)296-3976 Hazardous Waste Onsite Consultation Program The Onsite Consultation Program provides free onsite visits to businesses that request assistance. Only small quantity waste generators or businesses that are potential small quantity waste generators qualify for this service. Staff work with the business owner to help develop a practical hazardous waste handling program, find alternatives, reduce waste, and comply with regulations. is For information on the program or to request an onsite consultation, contact.' Seattle/King County Hazardous Waste Management Program 130 Nickerson Street, Suite 100 Seattle, WA 98109 206-263-3050 Web site: http://www.govlink.org/hazwaste/ The Household Hazards Line (Household Hazardous Waste)— (206) 296-4692 err This telephone hot line provides hazardous waste information and referrals to the general public. (Businesses should call the Business Waste Line, also listed in this Reference Guide.) The Hazards Line tells citizens where to dispose of their hazardous NM waste and suggests less hazardous alternatives.It also provides operations times and locations for household disposal sites for King County and the City of Seattle. For information, contact: The Hazards Line Telephone: (206)296-4692 Web site: http://www.govlink.org/hazwaste/house Seattle-King County Department of Public Health Waste Characterization This program serves businesses in Seattle and King County that have questionable re wastes.Information supplied by the generator on questionable wastes such as sludges, sandblast waste,treated wood, and contaminated soils is reviewed by the Health Department. Written authorizations are issued for those wastes that will be allowed in via January 2009 VI-4 King County Storm water Pollution Prevention Manual 411 the garbage. For information, contact: Telephone:206-296-4633 Washington Toxics Coalition The Washington Toxics Coalition is a nonprofit organization dedicated to providing information on reducing the use and production of toxic materials. The Coalition offers fact sheets,research materials, and personal assistance to individuals interested in reducing toxics (such as pesticides,solvents,cleaning chemicals,and a variety of other «�r chemicals)and finding safer alternatives to toxic materials. For written information or personal assistance, contact: am Washington Toxics Coalition 4516 University Way NE Seattle,WA 98105 Telephone: (206) 632-1545 as Washington State Department of Ecology Dangerous Waste TSD as Information The Department of Ecology is the source of information on businesses that provide services in regard to dangerous waste treatment, storage,and disposal (TSD), and information on applicable regulations for TSD businesses. Contact: w,r Washington State Department of Ecology Telephone:(360)407-6000(Olympia), (425) 649-7000 (Bellevue) Web site:http://www.ecy.wa.gov/programs/hwtr/ err COMMERCIAL AND HOBBY FARMS Washington State University Cooperative Extension—King County The Extension Service offers a variety of educational services designed to promote sensitivity to water quality concerns in land development planning.Extension staff have expertise in several types of land uses, including agricultural production, livestock management, small farms, forestry,gardening, lawn care,and others. Several programs targeted at specific land use practices offer educational materials,workshops, MINN conferences, and individual consultation for landowners and land managers.Although the Extension Service cannot make individual site visits,staff can advise on effective BMPs,supply supporting information, and contact information for other groups with si further information. For information, contact: WSU Cooperative Extension—King County January 2009 King County Storm water Pollution Prevention Manual Ii 919 SW Grady Way Ste 120 Renton ,WA 98055 1111 Telephone: (206) 205-3100 or(206)296-DIAL for prerecorded information on hundreds of topics related to gardening, horticulture, and agriculture Web site: http://king.wsu.edu/ King Conservation District See earlier description. LANDSCAPING, NURSERY, AND GOLF COURSE PRACTICES rrr University of Washington Center for Urban Horticulture Elisabeth C. Miller Library The Center for Urban Horticulture is a valuable resource for information on environmentally sensitive gardening, landscaping, and nursery practices. The Center has the only horticultural library in the Northwest,the Elisabeth C. Miller Library.Although personnel are not available for answering individual questions on vegetation-related BMPs, the library is open to the public for information that can assist in determining effective BMP strategies. ea Elisabeth C. Miller Library 3501 NE 41st Street Seattle,WA 98195 For library hours,call: (206) 543-0415 Web site: http://www.millerlibrary.org ia Golf Course Best Management Practice Manual The King County Department of Development and Environmental Services has a BMP manual specifically applicable to golf courses and their stormwater pollution concerns. The Golf Course BMP Manual provides details on environmentally sound site planning provisions, construction practices, vegetation planting and maintenance practices, rr pesticide use,and general golf course maintenance practices. This manual should be consulted for effective BMPs applicable to existing and proposed courses. To obtain a copy of the manual, contact: King County Department of Development and Environmental Services—Resource Planning Section at 206-296-6640 or King County Water and Land Resources Division Telephone: (206)296-6519 The Water Quality Action Manual for Greenhouse and Nursery Operators S This is a water quality protection guide for greenhouse and nursery growers that merges pollution control and prevention,economics,worker safety,and public relations into one easy-to-read manual.The American Association of Nurserymen, the Society of aft au January 2009 VI-6 King County Storm water Pollution Prevention Manual 7 American Florists,the Professional Plant Growers Association, and Roses, Inc developed it. To obtain a copy of this manual, contact: AAN Publications 1250 I Street NW, Suite 500 Washington,D.C. 20005 Telephone: (202) 789-2900 Web site:http://www.anla.org Washington State University Cooperative Extension - King County See earlier description. nr LAND USE REQUIREMENTS King County Department of Development and Environmental Services dis The Department of Development and Environmental Services (DDES)should be consulted to determine whether any permits may be required in constructing BMPs, modifying property layout, or otherwise altering a site to control runoff contamination. If permit requirements are overlooked or ignored,business or property owners may be subject to fines. DDES should be contacted while plans are being formed for BMPs,and before any action is taken,to determine permit applicability and potential fees. For information, contact: King County DDES 900 Oaksdale Ave SW Renton, WA 98055-1219 Telephone:(206)296-6640 Web site: http://www.kingcounty.gov/property/permits King County Fire Marshal Questions on specific fire code requirements for individual site conditions and potential BMP scenarios can be directed to the King County Fire Marshal's office. For information, contact: King County Fire Marshal 900 Oaksdale Ave Renton, WA 98055-1219 +�+ Telephone: (206)296-6675 King County Critical Area Ordinance User's Manual air King County has enacted a Critical Areas Ordinance(CAO)to define and protect certain land and water features throughout the county. The Environmental Education Section of King County's Department of Development and Environmental Services (DDES)has prepared a CAO User's Manual that serves as a reference for the CAO in January 2009 King County Stormwater Pollution Preventibn Manual irr all Ilk an easy-to-understand format. The CAO User's Manual can help determine special considerations that may be necessary for implementation of BMPs within or near a designated sensitive area. The King County Environmental Education Section also offers training at the community level on sound development practices (including BMPs)related to erosion control,clearing and grading,wildlife, and sensitive areas. 1111 To obtain a copy of the CAO User's Manual, contact: King County DDES Oil Environmental Education Section 900 Oaksdale Ave Renton, WA 98055-1219 Telephone: (206)296-6640 EROSION CONTROL PRACTICES Master Builders Association of King and Snohomish Counties This is a business association primarily for residential construction companies. Members have experience in applying erosion and sediment control BMPs on both small and large sites. The association can provide references on erosion and sediment control products for use on construction sites as well as material suppliers who carry erosion and sediment control products. Mari For information, contact: Master Builders Association chili 335 116th Ave SE Bellevue,WA 98004 Telephone: (425)451-7920 , Associated General Contractors This association provides information and training on erosion and sediment control for rMa contractors and field staff. The Association also provides resources in the areas of waste disposal and erosion/sediment control. It provides information on recommended water quality protection methods for contractors who maintain equipment yards or are involved in building construction or site preparation activities, such as clearing and grading. Mali For information: Associated General Contractors 1200 Westlake Avenue North, Suite 310 Ma Seattle, WA 98109 Telephone:(206)284-0061 Web site: http://www.constructionfoundation.org r King County Surface Water Design Manual This manual contains the requirements and standards for designing surface and January 2009 King County Storm water Pollution Prevention Manual rti stormwater management g systems in King County. It also includes a chapter on erosion and sediment control requirements for permitted sites. To obtain a copy of the manual, contact: King County Water and Land Resources Division "' 201 South Jackson, Suite 600 Seattle, WA 98104 Telephone: (206) 296-6519 "" Web site: http://www.kingeounty.gov/environment/waterandland/stormwater Stormwater Management Manual for Western Washington The Department of Ecology developed this manual as a model for local governments. It contains requirements for stormwater management system design,erosion control, and urban best management practices. Volume II discusses erosion and sediment control. To obtain the manual, contact: Publications Distribution Office Washington State Department of Ecology P.O. Box 47600 Olympia, WA 98504-7600 ar` Telephone: (360) 407-7472 Order by title and publication number 91-75 King Conservation District See earlier description. all RECYCLING AND REUSE PRACTICES King County Solid Waste Division - Business Recycling Program This program assists businesses with recycling by: 1) providing information on waste reduction and recycling services for your particular needs; 2)helping you work with your employees to promote participation; 3) offering information on buying recycled products; and 4) providing you with ongoing support to ensure your program is allsuccessful.The program also runs "GreenWorks"a special program that recognizes individual business recycling efforts. For more information, contact: GreenWorks Waste Reduction and Recycling Program King County Solid Waste Division 400 Yesler Way,Room 600 Seattle, WA 98104 Telephone: (206)296-8800 .w January 2009 Vl-9 King County Stormwater Pollution Prevention Manual wx The Guidebook for Implementing Curbside and Dropoff Used Oil Collection Programs Washington Citizens for Recycling, a nonprofit organization, has prepared this guidebook for general public use to enhance used oil recycling efforts. Businesses interested in recycling used oil can use this guidebook to determine how they can recycle oil efficiently as well as how they can team with other businesses to form joint oil recycling programs. For information on obtaining the guidebook, contact: Washington Citizens for Recycling 157 Yesler Way, Suite 309 Seattle,WA 98104 rio Industrial Materials Exchange (IMEX) IMEX provides a free service helping businesses that have surplus materials find businesses that need them. As an alternative to disposal,exchanges reduce disposal costs for generators, enable secondary users to obtain useful materials at low cost(or no cost), and reduce the amount of material that is permanently disposed. Surplus or waste materials,such as solvents,paint,plastics,and wood, are exchanged. IMEX provides this service through a bimonthly catalog,which is mailed to businesses in the region. The catalog lists materials available and materials wanted.Materials are also listed on the National Materials Exchange Network computer bulletin board(accessible by computer modem). IMEX is a component of the Local Hazardous Waste Management Program in King County, which is a multi-agency effort. For information on the catalog or computer service, contact: ww IMEX Wells Fargo Center 999 3rd Ave Suite 700 Seattle,WA 98104 Telephone: (206)296-4899 Washington State Department of Ecology Waste Reduction, Recycling, and Litter Control Program The Department of Ecology has extensive information on recycling, including details on types of wastes that can be recycled, lists of commercial vendors that recycle certain types of wastes,and locations of drop-off stations for recyclable materials. SOLID WASTE DISPOSAL King County Solid Waste Division The Solid Waste Division can provide information on solid waste disposal issues. January 2009 v1-10 King County Storm water Pollution Prevention Manual Nr For questions on where to dispose of questionable solid waste, contact: King County Solid Waste Division General Information Telephone: (206)296-6542 For information on the disposal of construction, demolition, and land clearing debris, contact. Regional Disposal Telephone: (206) 646-2400 Seattle-King County Department of Public Health Waste Characterization See earlier description. BOAT AND MARINA PRACTICES Northwest Marine Trade Association The Northwest Marine Trade Association is a business organization with experience in water pollution issues related to a variety of boat facilities. The association can offer advice on BMPs as well as provide further contacts in the King County area for more detailed information applicable to individual site conditions. For information, contact: Northwest Marine Trade Association 1900 North Northlake Way, Suite 233 Seattle, WA 98103-9087 Telephone: (206) 634-0911 I. AUTOMOTIVE INDUSTRY Auto Industry Guides to Managing Hazardous Wastes The Washington State Department of Ecology has published eight guides for the automotive industry describing ways to manage hazardous wastes. These are small individual guide books for the following auto service areas: radiator shops,transmission shops,automotive machine shops,automotive repair shops, service stations, auto dealers,tire dealers, and auto body shops. To obtain a guide, contact: Publications Distribution Office Washington State Department of Ecology P.O. Box 47600 Olympia, WA 98504-7600 Telephone: (360) 407-7472 Order by title and publication number. You can also download publications and guides from the Washington State Department of Ecology website at wr January 2009 King County Stormwater Pollution Prevention Manual rrti http://www.ecy.wa.gov/biblio/automotive.html. A Water Quality Resource Manual for the Automotive Service Industry This manual serves as an educational tool to facilitate compliance with water quality regulations. The manual includes information on water quality problems and regulations,guidance on how to develop shop-specific BMPs and policies, and case studies on the problems and solutions of three repair shops in this region. rig To obtain a copy of this manual, contact: Puget Sound Alliance 130 Nickerson Street, Suite 107 r>rr Seattle, WA 98109 Telephone: (206) 286-1309 Vehicle Recycler Facilities The Washington Department of Ecology has prepared a guidance document to assist vehicle recyclers in selecting best management practices. The title is"Best Management Practices to Prevent Stormwater Pollution at Vehicle Recycler Facilities." To obtain the document, contact: Publications Distribution Office Washington State Department of Ecology P.O. Box 47600 Olympia, WA 98504-7600 Telephone: (360)407-7472 Order by title and publication number. You can also download publications and guides from the Washington State Department of Ecology website at http://www.ecy.wa.gov/biblio/automotive.html. a Also refer to the Hazardous Waste Management Section listed earlier. SCRAP METAL INDUSTRY PRACTICES Scrap Metal Recycling Environmental Guidance Manual Pacific Iron and Metal has developed a guidance manual for metal recyclers that suggests effective stormwater BMPs applicable in the metal recycling industry. The guidance manual has been reviewed extensively by several interested agencies and organizations in the Northwest, and it addresses regulatory issues in detail. The manual includes lists of pollutants associated with various types of recyclable materials that are likely to be encountered at typical metal recycling businesses. The guidance manual also offers suggestions for recyclers seeking the assistance of an environmental consultant. January 2009 King County Stormwater Pollution Prevention Manual mid T For information f on on the guidance manual, contact: Pacific Iron and Metal Telephone: (206)628-6222 or Metro Telephone: (206) 689-3000 LABOR SUPPORT FOR IMPLEMENTATION Washington Conservation Corps The Washington Conservation Corps is a group of citizens,ages 18-25,who can offer free assistance on environmental cleanup projects such as stream restoration. A supervisory board of representatives from the state departments of Ecology, Wildlife, and Natural Resources oversees the Conservation Corps. The Conservation Corp's efforts are not intended for private sites, but the group may offer assistance in cooperative efforts by several businesses or residences to implement larger-scale BMPs that will benefit particularly sensitive water resources.The Department of Ecology, the Department of Wildlife, or the Department of Natural Resources must make a formal request for Conservation Corps assistance. Consequently,outside requests for services must be directed to one of these agencies. For information, contact: Washington Conservation Corps P.Q.Box 47600 Olympia, WA 98504-7600 Telephone: (360)407-7248 Web site:http://www.ecy.wa.gov/programs/sea/wcc/ ACTIVITIES THAT MAY RESULT IN PROHIBITED DISCHARGES 4111 According to King County Code 9.12.025B,the following activities may result in prohibited discharges to the surface water,stormwater or groundwater. Each activity has at least one activity sheet in this manual that describes the required best management rrr practices specific to that activity. This list is not a complete list of potential prohibited discharges. For the complete list, see the King County Code Title 9 for Surface Water Management at http://www.kingcounty.gov/council/legislation/kc_code.aspx. 1. Potable water line flushing Activity Sheet A-42 Potable Water Line Flushing or Tank Maintenance 2. Lawn watering with potable water January 2009 King County Stormwater Pollution Prevention Manual �r. 1111 Activity Sheet A-26 Landscaping Activities Activity Sheet R-5 Residential Gardening and Lawn Care 3. Dust control with potable water re Activity Sheet A-44 Dust Control and Soil Erosion and Sediment Control 4. Automobile and boat washing rrr Activity Sheet A-13 Vehicle Washing and Steam Cleaning wit Activity Sheet R-1 Residential Automobile and Boat Washing 5. Pavement and building washing Activity Sheet A-15 Pressure Washing of Buildings,Rooftops, and other Large Objects Activity Sheet A-31 Vehicle and Equipment Parking and Storage Activity Sheet A-32 Sidewalk Maintenance sr Activity Sheet R-6 Residential Maintenance and Repairs lib 6. Swimming pool and hot tub maintenance Activity Sheet A-33 Swimming Pool and Spa Cleaning and Maintenance Activity Sheet R-7 Residential Swimming Pool and Hot Tub Maintenance 7. Auto repair and maintenance Activity Sheet A-18 Engine Repair and Maintenance Activity Sheet R-3 Residential Automobile Repair and Maintenance 8. Building repair and maintenance Activity Sheet A-29 Building Repair,Remodeling,and Construction Activity Sheet R-6 Residential Maintenance and Repair 9. Landscape maintenance Activity Sheet A-26 Landscaping Activities Activity Sheet R-5 Residential Gardening and Lawn Care January 2009 King County Storm water Pollution Prevention Manual oW1 10.Hazardous waste handling Activity Sheet A-2 Storage of Liquid Materials in Stationary Tanks Activity Sheet A-3 Storage of Liquid Materials in Portable Containers err Activity Sheet A-5 Storage of Pesticides and Fertilizers nr Activity Sheet A-6 Storage and Treatment of Contaminated Soils Activity Sheet R-4 Residential Hazardous Waste Use, Storage and Disposal 11. Solid and food waste handling Activity Sheet A-8 Storage of Solid Wastes and Food Wastes (including cooking grease) Activity Sheet A-9 Storage of Scrap and Recycling Materials (including auto recycling facilities) Activity Sheet R-2 Residential Storage of Solid and Food Wastes 12. Application of pesticides , „ Activity Sheet A-25 Chemical Applications other than for Landscaping Activity Sheet A-26 Landscaping Activities ss Activity Sheet R-4 Residential Hazardous Waste Use, Storage and Disposal Activity Sheet R-5 Residential Gardening and Lawn Care WO Orr WO January 2009 King County Stormwater Pollution Prevention Manual QUICK PHONE , REFERENCE 1111 Cascadia Revolving Fund (206) 447-9226 King Conservation District (206) 764-3410 NO King County Department of Development and Environmental Services Clearing and Grading (206) 296-6640 Environmental Services (206) 296-6640 Fire Marshal (206) 296-6675 No Code Enforcement (206) 266-6680 Permits (206) 296-6600 King County Local Hazardous Waste Program (206) 263-3050 King County Solid Waste Division General Information (206) 296-6542 No Business Recycling Program (206) 296-8800 King County Water and Land Resources Division Main Desk (206) 296-6519 To request a water quality audit (206) 296-1900 Master Builders Association (206) 451-7920 (425) 641-8093 Northwest Marine Trade Association (206) 634-0911 January 2009 VI-16 King County Stormwater Pollution Prevention Manual ¶ QUICK PHONE REFERENCE Pacific Northwest Pollution Prevention Research Center (206) 223-1151 Puget Sound Clean Air Agency (PSCAA) 1-800-552-3565 do Seattle—King County Health Department Information on septic tanks and garbage containers Contact District Office Business Waste Line (206) 296-3976 Waste characterization service (206) 296-4633 Hazards Line (for households) (206) 296-4692 Industrial Materials Exchange (IMEX) (206) 296-4899 Pesticide applicator licensing (206) 205-4394 University of Washington Center for Urban Horticulture- (206) 543-8616 Elisabeth C. Miller Library Washington State Department of Ecology Northwest Regional Office (Bellevue) (425) 649-7000 Waste reduction and recycling 1-800-RECYCLE Reporting of Spills (425) 649-7000 Washington Conservation Corps (360)407-7248 Publications Distribution Office (360) 407-7472 ati Washington State Department of Natural Resources (206) 825-1631 Washington State University Cooperative Extension - King (206) 205-3100 County 206-296-3440 Master Gardener Hotline au or for prerecorded information (206) 296-DIAL (3425) Washington Toxics Coalition (206) 632-1545 11111 11.11 January 2009 • King County Stormwater Pollution Prevention Manual rr se Appendix D Inspection and Maintenance Report Forms a Construction Stormwater Pollution Prevention Plan CE11:1111 Renton Early Childhood Learning Center 210515.10 rr kr Renton Early Childhood Learning Center Stormwater Pollution Prevention Plan Inspection and Maintenance Report Form To be completed every 7 days and within 24 hours of a rainfall event of 0.5 inch or more. Inspector: Date: Inspector`s Qualifications: Days since last rainfall: Amount of last rainfall: inches IS Stabilization Measures Drainage Area Date Since Last Date of Next Stabilized Stabilized With Condition Disturbance Disturbance (yes/No) Stabilization required: To be performed by: On or before: NEI ori l.. ern► • Renton Early Childhood Learning Center Stormwater Pollution Prevention Plan Inspection and Maintenance Report Form VII Perimeter Structural Controls: Date: Filter Fence Drainage Area Perimeter Has Slit Reached 1/3 of Is Fence Properly Secured? Is There Evidence of sio Fence Height? Washout or Overtopping? Maintenance required for Filter fence and straw bales: To be performed by: On or before: UM IIII 11111 arr Renton Early Childhood Learning Center Stormwater Pollution Prevention Plan Inspection and Maintenance Report Form Changes required to the pollution prevention plan: Reasons for changes: I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signature: Date: rrr Ii ;ram► MO 11. NW mai S wr S S S it* 1 Appendix E Sediment Pond Design Calculations sib ifill ail MN ReConstruction ton o Stormwater er Learning Prevention Plan Q© D Renton EarlyChildhood Center 210515.10 mu err rr �r► mm mm mm m mm mm mm mm �r . , Project pence EG► t- Project No. Z-105 I T/ 112 ®Page_l. of P Subject Phone ISICalculations =�pj I With/To Fax# ❑Fax ❑Memorandum INV ‘or Address #Faxed Pages f1 H B : L / I ❑Meeting Minutes 1'7 ir Date 01 7i✓ f Z By j41 vI E.Telephone Memo Civil Engineers r56Di A 111 P D s1 rN 6 Structural Engineers iiii r" -hi J top ed Ft P 5 " Landscape Architects 7 Q2y+ " = 2 . 7 I,, Community Planners Land Surveyors ill leq w/v d swv-ifict? 61,17.40c. (5A-) G- top 0 f v aS-e/i P i Q-6 - Neighbors (p,0o09(v) AN SAyr ' (.) (7--W _ 5, 0e3SF us (0, 000q 69 SA it9 y,, f ).(3.9 0 ) _ _ -7, 063 sp ✓ iiii ((?, 0006 (P) Nov�l-h 2614e/16mf o i 4 t Ii'e -Iv� 3-79,90 54 - : 1=0 s ii S'rjvt-I-li sebmen-t ?on d -el. t 3-76,. ooI.1v ,37.9.6015A- =. 1-1,7 96 51= 7, 5110 5j / 13o-1- 1 .re rat ,fi pale' iieL-F- 3 : I mill 1.6te. slope yt MM1-I . iria 1 -FD -+-- -rya boa/i d '1 V 1 141,6`1--, �-1Gl4'ko-kYri K 1-f-,U IS ❑ �f TACOMA iiii I kl VA-- .V b .e&ii 3, ) (/9 ' I is ii t± . 2215 N.30th St. Suite 300 I ___( 3-pi IIIda t.► v el&t.i V�1 yt_e,vt- /s )41 . Tacoma,WA f 98403-3305 rill 253.383.2422 253.383.2572 FAX rig SEATTLE • 1200 6th Avenue Suite 1620 as Seattle,WA r D r.s 98101-3123 mai If this does not meet with your understanding,please contact us in writing within seven days.THANK YOU. I 206.267.2�125 206,267.2429 FAX i Project k1! �Ci L•C/ Project No. 12 Page � of - ■ Subject Phone ©Calculations Fax �, �.i With/To Fax# rr 1111 ❑Memorandum Address #Faxed Pages ❑Meeting Minutes A H B L ' Date 01/2-S/l 1 Z By ❑Telephone Memo -R6-'I E-A of �;veyz ,t)v'ef s pi '�..,�;,..vv Civil Engineers rW1 / Structural Engineers L It 10O I _ ( L/) 14) (J.2 1)(H 3 Landscape Architect? 1 (7 34) w (�,(- ) (o, 2-) Community Planners, L 'Zf) (O' 2- '/2 Land Surveyors i sit L r 2 6 > mu-)y j ' Neighbors Dan/A-1 19\I c o R 1 E 1 ( ' A0 (qI (4 ) ( r) rik NoY4-11 A = (1-1. ei (-3 i q) ar Nv' +h A 0 = o. o5,(p 5P = 3, OM 5.17144h Ay ( l _ ( 7 ) ( d ) Suvt-i-h A .0 o, oeae • its ❑TACOMA 2215 N.30th St. • Suite 300 Tacoma,WA 98403-3305 S 253.383.2422 253.383.2572 FAX S SEATTLE 1200 6th Avenue Suite 1620 Seattle,WA 98101-3123 2 OF5 If this does not meet with your understanding,please contact us in writing within seven days.THANK YOU, 206.267,2425 206.267.2429 FAX KCRTS Data Entry& Computation Sheet y�r Project: 210515.10-Renton ECLC page 1 of 1 Comp by: JMK Date: 2/10/2012 Basin Name: Total Site: Developed 15-min. File Name: DEV95MIN Region: Seatac Scale Factor: 1.00 Time Step: 15-min Record Length: Reduced Total Acreage: rr ,` ` rrr 'Pervious Land Types Land Use KCRTS Soil Group Cover Group Area (sf) Acreage Till Forest Till Pasture Remainder of Site Till Grass 113,185 - 2.598 Outwash Forest Outwash Pasture Outwash Grass Wetland -- ter Impervious Land Types Land Use Acreage EIF EIA Non Effective Area Reverts to: Impervious Areas 5.125 1.00 5.125 0.000 N/A Adjusted Land Use Areas Based on EIF Calculations f KCRTS Soil Group Cover Group Added Acreage Computed Acreage for Model Till Forest Ail Till Pasture Till Grass 2.598 Outwash Forest Outwash Pasture Outwash Grass Wetland -- -- Effective Impervious -- 5.125 Total Area Check a .,�:`s f ' i E t �Pf;•.li Ei A 3 f z\TEurt� .,ter: Flow Path Data Land Use Length Slope nr Notes: raw n t G, mi DEV15MINPKS Flow Frequency AnalysisMb Time Series File:devl5min.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- Flow Frequency Analysis mo Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period 2.44 6 8/27/01 18:00 7.36 1 100.00 0.990 1.72 8 1/05/02 15:00 5.19 2 25.00 0.960 5.19 2 12/08/02 17:15 3.40 3 10.00 0.900 1.97 7 8/23/04 14:30 2.90 4 5.00 0.800 2.90 4 11/17/04 5:00 2.90 5 3.00 0.667 2.90 5 10/27/05 10:45 2.44 6 2.00 0.500 3.40 3 10/25/06 22:45 1.97 7 1.30 0.231 7.36 1 1/09/08 6:30 1.72 8 1.10 0.091 Computed Peaks 6.64 50.00 0.980 u s mi ma w ■r ms mm mm mm mo mi Page 1 mm t1 F5 i5.3.4 CONTROL STRUCTURES—METHODS OF ANALYSIS 1 Riser Overflow The nomograph in Figure 5.3.4.H may be used to determine the head(in feet)above a riser of given diameter and for a given flow(usually the 100-year peak flow for developed conditions). I FIGURE 5.3.4.H RISER INFLOW CURVES 1 D C" 100 72 54 48 7 �,.)4 c- �� 4 I l� 42 � „I 33�111111111111716IIIIII 'A is 30 OM I� 27 24 polio I er /' 21 f Qvi oil // Ci / kildth I 18 a. 10ill ��INFMAz1s11�— 15 I 4UI' ea ,0'_, r oplopP '� / I moitu 12 ri io 3.5lo 710711110,/ rill° " ' or au o I / 0.1 1 HEAD IN FEET(measured from crest of riser) 10 IN Qweir=9.739 DH312 QwtTiee- -3.782 D2H112 0 in cfs,D and H in feet Slope change occurs at weir-orifice transition am 6oFS 2009 Surface Water Design Manual 1/9/2009 as 5-47 rir a a a ON a a r a a a a a arr MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION PART ONE—GENERAL 1_1 SUMMARY 1.1.1 This work consists of retaining and protecting trees during the construction of the project. 1.2 RELATED WORK 1.2.1 Related Documents: Construction Documents, General and Special Conditions of the Contract Ail apply to work of this section. 1_3 QUALITY ASSURANCE ell 1.3.1 General Requirements: Provide daily supervision of field crews by Owner/City Urban Forest- ry Manager during the critical phases of the project: for example,demolition of existing asphalt and con- crete; root pruning; or construction of pavements within tree protection areas. as 1.3.2 If it appears that the completion of the construction may cause damage to the branches of any ,s tree,the Contractor shall contact Owner prior to work commencement. 1.3.3 To prevent or minimize soil compaction,designated routes for equipment and foot traffic by work crews shall be determined prior to commencing construction activities, and shall be indicated in the tree protection plan to be submitted by Contractor. These routes shall be marked at the site, prior to commencement of construction, with tree protection fencing and signage as specified. 1.3.4 Motorized equipment and trailers, including tractors, Bobcats,bulldozers,trackhoes,trucks, cars,and carts shall not be allowed access within tree protection areas. all 1.3.5 Materials and supplies shall not be stockpiled or stored within the tree protection area. Should temporary storage be necessary within designated tree protection areas,the existing grade shall be cov- ered with double, overlapping sheets of 3/4"thick plywood, or six(6)to eight(8)inches of wood mulch to Oa help distribute the weight of materials or supplies and to minimize soil compaction. 1.3.6 Under no circumstances shall any objects or materials be leaned against or supported by a tree's trunk,branches, or exposed roots. The attachment or installation to trees of any sign, cable, wire, nail, swing, or any other material that is not needed to help support the natural structure of the tree is prohibit- ed. Standard arboricultural techniques such as bracing or cabling that are performed by professional ar- borists are acceptable upon approval by the Owner. 1.4 REFERENCE STANDARDS AND GUIDELINES 1.4.1 Contractor shall comply with applicable requirements and recommendations of the most current versions of the following standards and guidelines. Where these conflict with other specified require- ments,the more restrictive requirements shall govern. 1.4.1.1 ANSI Z133.1-1988: American National Standard for Tree Care Operations 1.4.1.2 .ANSI A300-1994: Standard Practices for Trees, Shrubs and Other Woody Plant Maintenance BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 320190 - 1 MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION 1.4.1.3 NATIONAL ARBORIST ASSOCIATION STANDARDS: Pruning, Cabling and Bracing, Fer- tilization 1.4.1.4 GUIDE FOR PLANT APPRAISAL-8TH EDITION: Authored by the Council of Tree and Landscape Appraisers; published by the International Society of Arboriculture. 1.5 DEFINITIONS 1.5.1 Tree Protection Area: Generally, a tree protection area should consist of the ground encompass- ing from 1.5 (minimum)to 2.0 times the distance between the trunk and dripline, or one linear foot away Eli from the trunk base for every inch diameter of the trunk, whichever is greater. Areas of ground covered by pavement,buildings, or other permanent structures where the presence of roots is minimal or negligi- ble are excluded. The area under or within the tree's dripline is also referred to as the "Critical Root a Zone" (see below). With groups of trees or where an array effect is present, there may be discontinuous(non-overlapping) perimeters of tree protection areas that result in difficult to maintain or ineffective tree protection fencing. In these cases,even though tree protection areas do not overlap,they should be treated as though they do if the distance between the perimeters of such areas is less than thirty (30) feet. In effect,this will artifi- cially enlarge the area of tree protection,but will result in a more clearly defined,manageable area. • 1.5.2 Dripline: The outermost edge of the tree's canopy or branch spread. The area within a tree's dripline is all the ground under the total branch spread. 1.5.3 Critical Root Zone: Generally,all of the ground area included in the dripline. a 1.5.4 Diameter(Caliper): The size(in inches)of a tree's trunk is measured at: [1]-six(6)inches above grade for trunk diameters up to and including four(4)inches. [2]-twelve(12)inches above grade for trunk diameters from four(4) inches up to and in- eluding eight(8) inches. [3]-four and a half(4'/2) feet above grade for trunk diameters greater than eight(8)inches All work shall be done in accordance with guidelines established in the "Guide for Plant Appraisal". All measurements should be rounded to the nearest inch. 1.5.5 High-Value Shrub: Any specimen shrub with an appraised value of$100.00 or more. 1.6 PROJECT SITE MONITORING 1.6.1 As determined by Owner,the City's Urban Forestry Manager should be utilized and informed ilk to enforce and monitor the Tree Retention and Protection objectives. The project site should be moni- tored a minimum of two(2)times weekly-more frequently at the start of the project until all procedures and specifications are understood and properly executed by all parties. Specific monitoring schedules should be developed at preconstruction meetings and modified as deemed necessary by the appropriate parties. 1.7 SUBMITTALS 1.7.1 Proposed methods and schedule for effectuating tree and other plant protection shall be submit- ted for approval. Contractor shall submit construction schedule that includes a time frame for work near existing plants. Approval of such shall be obtained from the Owner prior to commencement of construc- BLRB ARCHITECTS 4/2/13 a DESIGN CONCEPTS BID SET PAGE: 320190 -2 a r111 MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION tion near tree protection areas. 1.7.2 Proposed methods, materials, and schedule for root pruning, branch pruning, and other tree maintenance shall be submitted for approval. Owner and City's Urban Forestry Manager shall mark the location of root pruning lines in the field prior to the operation. If possible, root pruning should occur between autumnal leaf fall and spring foliation. Root pruning during the growing season shall require approval of Owner and City's Urban Forestry Manager. PART 2 - MATERIALS 2_1 TREE PROTECTION FENCING 2.1.1 Tree protection fences should be constructed as follows: 2.1.1.1 Orange safety fence 48" in height, with 1/2"x 1-1/2" wood slats. Posts shall be steel t-posts, 5- 1/2' in length. Install on ten- (10) foot centers (maximum), at a depth of 18" minimum. Installation of post shall not result in injury to surface roots or root flares of trees. r�r PART 3—EXECUTION Oil 3_1 TREE PROTECTION FENCING 3.1.1 Tree protection areas shall be as designated on construction documents, and fencing locations should be staked for approval by Owner or City's Urban Forestry Manager. 3.1.2 Fencing should be installed to completely surround the limits of tree protection areas, and should extend up to the designated construction limits. 3.1.3 Tree protection fencing shall be installed prior to any site activity and shall remain until its MI re- moval is authorized by Owner. 3_2 DEMOLITION OF EXISTING ASPHALT OR CONCRETE 3.2.1 Caution should be used during removal of existing rock, paving, curb,gutter, sidewalk, drain inlets, and other concrete demolition,to minimize injury to tree root systems. The following procedures should be used when removing existing concrete. 3.2.2 Breaking of the existing concrete for removal should be done in a manner that will minimize ground disturbance and vibration. a' 3.2.3 Concrete or stone within designated tree protection areas and critical root zones shall be re- moved by hand. When removing existing sidewalks and curbs, care should be taken to avoid injury to wr roots located under,over, or adjacent to paved surfaces. 3.2.4 Roots and root-trunk flares growing over curbs should not be injured during breaking of curbs and removal of debris. Wood and bark tissues shall not be injured by striking tissues with equipment. 3.2.5 During the removal of concrete, all root systems and soil areas exposed shall not be disturbed. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 320190- 3 err MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION ow 3.2.6 Motorized equipment and trailers, including tractors, Bobcats, bulldozers,trackhoes,trucks, cars, and carts are to be limited to access on the existing paved street only. Access is not allowed behind the curb within tree protection areas. 3.2.7 Should access be necessary within designated tree protection areas,the existing grade shall be covered with double,overlapping sheets of 3/4"thick plywood,or six(6)to eight(8)inches of wood mulch to help distribute the weight of equipment and to minimize soil compaction and rutting. Plywood and/or mulch shall not be acceptable bridging material for driving over exposed tree roots. Exposed tree roots shall not be driven over. Owner or City's Urban Forestry Manager shall be notified and shall ap- prove of the access and driving surface prior to its use. 3.3 CONSTRUCTION OF PAVEMENTS,CURBS AND STRUCTURES ow 3.3.1 The following procedures shall be used when constructing hard surface improvements. 3.3.2 Keep all materials and equipment within the area bounded by existing pavement. ow 3.3.3 Protect exposed roots from contamination by stabilization materials and concrete. 3.3.4 Locate concrete washout areas away from roots and tree protection areas. 3.3.5 When excavating for the construction of inlets,excavated soil shall be deposited in trucks and hauled off or deposited temporarily on 3/4 inch thick plywood outside the critical root zone. Excavated and fill soil shall not be deposited, even temporarily,on unprotected natural grade. 3.3.6 After proper pruning,as needed,cover exposed roots within thirty (30)minutes to minimize desiccation. Roots may be covered with soil, mulch,or moistened burlap (7 ounce or equivalent), and shall be kept moist during the period until the final grade is established. ow 3.3.7 Where possible paving should be raised,narrowed,curved,or relocated to prevent cutting and removing major roots(e.g.roots greater than three inches in diameter). 3.3.8 Place a sheet of six(6)mil or thicker plastic over the grade within affected portions of tree pro- tection areas prior to pouring concrete sidewalks, curbs, inlets, ramps, and driveway approaches. The plastic will assist in providing a non-leaching barrier between the concrete, soil and roots. ow 3.3.9 Limit grading to a maximum of two(2)inches fill over natural grade within critical root zones. Fill should consist of sandy loam topsoil. Clay soils shall not be used as fill. When using fill soil,the am existing surface to receive fill should be scarified prior to filling. Any filling operation should not occur during water saturated soil conditions. 3.3.10 Existing soil may be used as a form for back of curb and gutter, with or without the use of a ast thin masonite-type form, although a masonite form is preferred. This will minimize excavation in the critical root zone and prevent undue injury to the roots. This method is unnecessary in areas outside the critical root zone. Place a layer of root restricting barriers between the curb and tree roots to help inhibit air root growth that may exploit small cracks in the curb. Where appropriate,use curbs with discontinuous footings to maintain natural grade near the base of trees adjacent to the curbing, and to minimize injury to roots and root flares. rrtt BLRB ARCHITECTS 4/2/13 °1a DESIGN CONCEPTS BID SET PAGE: 320190 -4 los MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION 3.3.11 In areas where roots have to be removed for construction,roots shall be severed prior to exca- vation to eliminate unnecessary tearing of roots by equipment. rr 3.3.11.1 Excavate soil by hand at the construction cut limit to a depth of thirty(30) inches or to the depth of the required root cut, whichever is less. 3.3.11.2 Prune roots as specified. 3.3.11.3 Protect exposed roots as specified. 3.3.12 Concrete or chemicals spilled within tree protection areas should be completely removed. Con- taminated soil shall be completely removed at the time of the spill and removed by hand without disturb- „, ance to root systems. Appropriate soil should be added as necessary to restore the grade. 3.4 PROTECTION DURING UTILITY INSTALLATION 3.4.1 Protection of Trees and High-Value Shrubs: 3.4.1.1 Contractor shall protect all trees and high-value shrubs from injury due to utility related work. All injuries to trees and high-value shrubs shall be mitigated to the satisfaction of the Owner, and, if ap- propriate in accordance with guidelines established in the "Guide for Plant Appraisal". All costs of such mitigation shall be charged to and paid by the Contractor. rrr 3.4.1.2 All utility lines shall be indicated on construction plans and pre-approved by the Owner. Un- less absolutely necessary, no utility lines shall be located within 10 feet of any existing tree trunk. 3.4.2 Existing Trees: 3.4.2.1 Owner shall be notified prior to any trenching or excavation known or suspected to involve cut- ting of more than: [1]-two roots,three inches or more in diameter. [2]-four roots between two(2) and three(3)inches in diameter. Owner shall be notified immediately in the event that roots in excess of that described above are cut,torn,ripped, or otherwise injured. Oil 3.4.2.2 All trenching or other work under the dripline of any tree shall be done by hand or by other methods that will prevent breakage or other injury to branches and roots. 3.4.2.3 Where it is necessary to excavate within the critical root zone of existing trees, Contractor shall use all possible care to avoid injury to trees and tree roots. Excavation, in areas where two(2)inch diam- eter and larger roots occur, shall be done by hand with approved hand tools. Where possible,tree roots two(2) inches or larger in diameter shall be tunneled or bored under and shall be covered with moistened au burlap to prevent excessive drying. 3.4.2.4 Wherever a trenching machine exposes roots smaller than two(2)inches in diameter, such roots extending through the trench wall shall be hand pruned. All trenches within critical root zones shall be closed within twelve-(12)hours-if this is not possible,the trench walls shall be covered with burlap and kept moistened. Prior to backfilling, Contractor shall contact Owner to inspect the condition and treatment of roots larger than two (2) inches in diameter injured by trenching. Mit BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 320190 - 5 rr a MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION 3.4.2.5 Horizontal directional boring(auger tunneling),rather than open trenching, shall be used for irrigation line or other utility installation within one half('/2)foot linear distance from the trunk base for every inch of trunk diameter, if root disruption or utility installation occurs on no more than one side of the tree. If trenching or utility installation occurs on two or more sides of a tree trunk(e.g.N,S,E, or W), then horizontal directional boring shall be used if line installation is within one (1)foot linear distance from the trunk base for every inch of trunk diameter. 3.5 ROOT PRUNING 3.5.1 Tree roots shall not be pruned or cut unless their removal is unavoidable or absolutely neces N. - sary. Owner shall be notified prior to any operation known or suspected to involve cutting of more than: [1]-two roots,three (3) inches or more in diameter; and/or [2]-four(4)roots between two (2)and three(3) inches in diameter. is Owner shall be notified immediately in the event that roots in excess of that described above are cut,torn, ripped,or otherwise injured. 3.5.2 Upon approval.by Owner, prior to any excavation,removal of sidewalk, or other activity that will result in removal of soil and tree roots, all tree roots within a designated area will be pruned to a depth of fourteen (14) inches. Pruning shall occur with a Dosko Root Pruner, or equivalent, in accessible areas,and by hand in areas inaccessible to the root pruning machine. All other root pruning shall be done a by hand with approved tools. 3.5.3 Removal of roots greater than one(1)inch diameter or parts of roots that are injured or diseased a should be performed as follows: 3.5.3.1 Preserve the root bark ridge(similar in structure and function to a branch bark ridge). Direc- tional root pruning is the recommended technique and should be used during hand excavation around tree roots. Roots are similar to branches in their response to pruning practices. With directional root pruning, objectionable and severely injured roots are properly cut to a lateral root, if possible,that is growing se downward or in a favorable direction. 3.5.3.2 All roots needing to be pruned or removed shall be cut cleanly with sharp hand tools,with oversight by Owner or City's Urban Forestry Manager . No wound dressings shall be used. 3.5.3.3 Recommended root pruning tools: Scissor-type lopper, Scissor-type pruner, Large and small hand saws, Wound scriber, Trowel or small shovel,Garden Fork, Hand broom. iril 3.6 ROOT PRUNING NEAR SIDEWALKS a 3.6.1 Root pruning shall be done by hand to achieve the objective of reducing future sidewalk prob- lems as well as preserving the trees. Removing anchoring roots or causing injuries in anchoring roots and root flares can cause future decay and windthrow hazards. Indiscriminate cutting of vigorous roots results in their resprouting so that several more new roots may grow from the cut end,back under the sidewalk, thereby reducing the time between sidewalk repairs. Roots can be managed in the ground without signifi- cant harm to trees, if care is taken to avoid injuries that lead to root and trunk decay. a 3.6.2 Directional root pruning is recommended because it considers the tree's response to root prun- ing and decay. With directional root pruning,roots are cut to a large lateral, if possible,that is growing downward or in a more favorable direction. The pruned root ends will be less likely to resprout, since a a large lateral can assume the new terminal role of the root.Proper removal of selected roots or parts of BLRB ARCHITECTS 4/2/13 a DESIGN CONCEPTS BID SET PAGE: 320190 -6 r MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION roots can direct roots away from sidewalks in the future. Procedures for root pruning directly next to sidewalks are as follows: air 3.6.2.1 Hand dig a trench six(6)to eight(8) inches in depth at the edge of the planting strip and side- walk. 3.6.2.2 Remove all roots less than two(2) inches in diameter in this trench back to a desirable lateral root,preserving the root bark ridge. If careful excavation does not reveal a desirable lateral root within twelve(12) inches of the exposed root in question,then the exposed root shall be pruned properly so that a minimal amount of root is removed. 3.6.2.3 Small root bundles,the source of future sidewalk problems, shall also be removed at this time. rr 3.6.3 All roots between two (2) and four (4) inches in diameter should be examined by Owner or City's Urban Forestry Manager in terms of their role in anchoring the tree. de 3.6.3.1 All roots that contribute significantly to anchorage should be preserved. Remove all other roots in this size range to sound, downward growing lateral roots that are at least one half(V2) the size of the root being removed. 3.6.3.2 All roots larger than four (4) inches in diameter are to be preserved unless their removal is ab- solutely necessary. Preservation of large roots may require: [1]- reducing the sidewalk width near the root flare; and/or [2]- ramping or bridging the side- walk over the roots to allow for root growth. 3.6.3.3 Tree guying subsequent to root pruning: 3.6.4 Upon review of on-site root pruning and constructing grading limits, Owner or City's Urban Forestry Manager shall determine if existing trees subject to root pruning should be guyed or otherwise 0111 stabilized. Contractor shall retain a qualified tree service company to complete tree guying and stabiliza- tion in accordance with National Arborist Association standards. 3_7 TREE PROTECTION SIGNAGE 3.7.1 A sign shall be mounted on tree protection fencing at fifty (50) foot intervals warning con- structing personnel and the public to keep out of the tree protection areas. 3_8 INJURIES TO EXISTING PLANTS-DAMAGE PENALTIES 3.8.1 Tree and High-Value Shrub Appraisal: 3.8.1.1 All trees and high-value shrubs will be evaluated and appraised by Owner and a list of all tree mott values for the project will be on file with Owner. Any tree or other plant requiring retention or protection that is not on the list shall be appraised by Owner as necessary to comply with this damage penalty. 3.8.1.2 Documentation for appraisals will consist of: [I]-measurement of plant size; [2]-identification by common and botanical names; [3]-current condition (overall health, injuries, overt hazard status, etc.)and [4]-location factors as described arr in the "Guide for Plant Appraisal". Photographs may be taken of certain trees and shrubs to document debilitating condition factors. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 320190 - 7 MEADOW CREST PLAYGROUND SECTION 320190 PROJECT NO. 11.12.116 TREE PROTECTION 3.8.1.3 The threshold level for plants to be appraised shall be $100.00; only those trees and shrubs es- timated to have a monetary value greater than $100.00 shall be appraised. 3.8.2 Trees and other plants designated as requiring retention or protection shall be identified and located on construction plans. Loss of, or partial injury to, any of these plants due to Contractor neglect or improper construction activities will result in liquidated damages for the assessed value of the tree as determined by Owner. 3.8.3 Trees determined as requiring "general protection" or "special protection" in the construction a areas and in other key locations should be clearly identified by Owner or City's Urban Forestry Manager. Loss or partial injury to any of these trees due to Contractor neglect or improper construction activities will result in liquidated damages for the assessed value of the trees as determined by Owner. Injury to a portion of these trees will be assessed by Owner and a corresponding portion of the liquidated damages will be assessed to the Contractor. 3.8.4 A fine of one thousand dollars ($1,000.00) will be levied against the Contractor for each inci- dent of construction damage(including construction traffic) within designated tree protection areas. Any fine shall be independent of any applicable liquidated damages for the assessed value of the tree or tree part. 3.8.5 Trees or roots visibly and unnecessarily injured will cause the Owner to withhold from the Con- tractor an assessed amount conforming to the requirements stipulated above, for a period of one full year. After that period the impact of the injury to any tree will be assessed by Owner. 3.8.6 If any trees or shrubs designated to be retained or protected are injured and replacement is justi- fied, a number and equivalent diameter inches of trees or shrubs of same or similar species shall be fur- nished and planted by the Contractor. The total inch diameter of the replacement plant(s) shall equal the diameter of the plant(s)to be replaced,in accordance with the "Guide for Plant Appraisal". • END OF SECTION 320190 a ea mii BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 320190 - 8 las MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING wr PART 1 - GENERAL 11 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. ail 1.2 SUMMARY 1.2.1 This Section includes exterior cement concrete pavement for the following: 1.2.1.1 Driveways rr 1.2.1.2 Curbs and Gutters 1.2.1.3 Walkways onsite and within City of Renton Right-of-Way. 1.2.1.4 Vehicular Concrete da 1.2.2 Related Sections include the following: 1.2.2.1 Division 03 Section 033000 "Cast-in-Place Concrete" for general building applications of concrete. 1.2.2.2 Division 31 Section 312000 "Earth Moving" for subgrade preparation, grading, and dill subbase course. rr 1.3 DEFINITIONS 1.3.1 Cementitious Materials: Portland cement alone or in combination with one or more of blended hydraulic cement, fly ash and other pozzolans, and ground granulated blast-furnace slag. 1.4 SUBMITTALS err 1.4.1 Product Data: For each type of manufactured material and product indicated. 1.4.2 Design Mixtures: For each concrete pavement mixture. Include alternate mixture designs when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments. 1.4.3 Material Test Reports: From a qualified testing agency indicating and interpreting test results for compliance of the following with requirements indicated, based on comprehensive testing of current materials: rr 1.4.3.1 Aggregates. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 - 1 ari Wi MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING rr 1.4.4 Material Certificates: Signed by manufacturers certifying that each of the following materials complies with requirements: 1.4.4.1 Cementitious Materials 1.4.4.2 Admixtures 1.4.4.3 Curing Compounds 1.4.4.4 Applied Finish Materials 1.4.4.5 Bonding Agent or Epoxy Adhesive 1.4.4.6 Joint Fillers 1.4.5 Field quality-control test reports. 1.4.6 Minutes of preinstallation conference. so 1.5 QUALITY ASSURANCE 1.5.1 Manufacturer Qualifications: Manufacturer of ready-mixed concrete products who complies with ASTM C 94/C 94M requirements for production facilities and equipment. 1.5.1.1 Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities." 's 1.5.2 Testing Agency Qualifications: An independent agency qualified according to ASTM C 1077 and ASTM E 329 for testing indicated, as documented according to ASTM E 548. um 1.5.2.1 Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1,according to ACI CP-01 or an equivalent certification program. 1.5.3 ACI Publications: Comply with ACI 301, "Specification for Structural Concrete," unless modified by requirements in the Contract Documents. Nil 1.5.4 Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixtures. 1.5.5 Preinstallation Conference: Conduct conference at Project site to comply with requirements in Division 01 Section 013100 "Project Coordination." 1.5.5.1 Before submitting design mixtures, review concrete pavement mixture design and examine procedures for ensuring quality of concrete materials and concrete pavement construction practices. Require representatives, including the following, of each entity directly concerned with concrete pavement,to attend conference: 1.5.5.1.1 Contractor's superintendent. a 1.5.5.1.2 Independent testing agency responsible for concrete design mixtures. BLRB ARCHITECTS 04/02/13 AHBL,INC. BID SET PAGE: 321313 -2 ar MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 1.5.5.1.3 Ready-mix concrete producer. 1.5.5.1.4 Concrete pavement subcontractor. 1.6 PROJECT CONDITIONS 1.6.1 Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities. -rNr PART 2 — PRODUCTS rr 2_1 MANUFACTURERS do 2.1.1 In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection: am 2.1.1.1 Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include,but are not limited to,products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements, manufacturers Ail offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified. err 2_2 FORMS 2.2.1 Form Materials: Plywood, metal, metal-framed plywood, or other approved panel-type materials to provide full-depth, continuous, straight, smooth exposed surfaces. 2.2.1.1 Use flexible or curved forms for curves with a radius 100 feet or less. or 2.2.2 Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and will not impair subsequent treatments of concrete surfaces. 2.3 CONCRETE MATERIALS ion 2.3.1 Conform to WSDOT Specification 8-14.2 for sidewalks. 2.3.2 Conform to WSDOT Specification 8-04.3 for curbs 2.4 RELATED MATERIALS 2.4.1 Expansion-and Isolation-Joint-Filler Strips: ASTM D 1751,asphalt-saturated cellulosic fiber. r.r 2.4.2 Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene. rw BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 —3 rri am MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 2.4.3 Epoxy Bonding Adhesive: ASTM C 881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class suitable for application temperature and of grade to requirements, and as follows: 111111 2.4.3.1 Types I and II, non-load bearing, for bonding hardened or freshly mixed concrete to hardened concrete. es 2.4.4 Chemical Surface Retarder: Water-soluble, liquid-set retarder with color dye, for horizontal concrete surface application, capable of temporarily delaying final hardening of concrete to a depth of 1/8 to 1/4 inch. as 2.4.4.1 Available Products: 2.4.4.1.1 Burke by Edeco; True Etch Surface Retarder. 2.4.4.1.2 ChemMasters; Exposee. wrw 2.4.4.1.3 Conspec Marketing& Manufacturing Co., Inc.; Delay S. 2.4.4.1.4 Euclid Chemical Company(The); Surface Retarder S. is 2.4.4.1.5 Kaufman Products, Inc.; Expose. 2.4.4.1.6 Metalcrete Industries; Surftard. 2.4.4.1.7 Nox-Crete Products Group, Kinsman Corporation; Crete-Nox TA. 2.4.4.1.8 Scofield, L. M. Company; Lithotex. 2.4.4.1.9 Sika Corporation, Inc.; Rugasol-S. us 2.4.4.1.10 Vexcon Chemicals, Inc.; Certi-Vex Envioset. 2.5 CONCRETE MIXTURES 2.5.1 Prepare design mixtures, proportioned according to ACI 301, for each type and strength of normal-weight concrete determined by either laboratory trial mixes or field experience. 2.5.1.1 Use a qualified independent testing agency for preparing and reporting proposed concrete mixture designs for the trial batch method. 2.5.2 Proportion mixtures to provide normal-weight concrete with the following properties: 2.5.2.1 Compressive Strength (28 Days): 4000 psi. 2.5.2.2 Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.50. 2.5.2.3 Slump Limit: 3 inches, plus or minus 1 inch. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 -4 rr1 MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING aim 2.5.3 Add air-entraining admixture at manufacturer's prescribed rate to result in normal-weight concrete at point of placement having an air content as follows: 2.5.3.1 Air Content: 5 percent plus or minus 1.5 percent for 3/4-inch nominal maximum aggregate size 2.5.4 Limit water-soluble, chloride-ion content in hardened concrete to 0.30 percent by weight of cement. 2.5.5 Cementitious Materials: Limit percentage, by weight, of cementitious materials other than portland cement according to ACI 301 requirements as follows: 2.5.5.1 Fly Ash or Pozzolan: 25 percent. NIS 2.5.5.2 Ground Granulated Blast-Furnace Slag: 50 percent. 2.5.5.3 Combined Fly Ash or Pozzolan, and Ground Granulated Blast-Furnace Slag: 50 percent, with fly ash or pozzolan not exceeding 25 percent. 1101 2.6 CONCRETE MIXING 2.6.1 Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete according to gia ASTM C 94/C 94M. Furnish batch certificates for each batch discharged and used in the Work. 2.6.1.1 When air temperature is between 85 deg F and 90 deg F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes. ,r 2.6.2 Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer. 2.6.2.1 For concrete mixes of 1 cu. yd. or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer,before any part of batch is released. 2.6.2.2 For concrete mixes larger than I cu. yd., increase mixing time by 15 seconds for each Aso additional 1 cu. yd. 2.6.2.3 Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixing time, quantity, and amount of water added. r�r PART 3 - EXECUTION 3.1 EXAMINATION 3.1.1 Examine exposed subgrades and subbase surfaces for compliance with requirements for +w dimensional, grading, and elevation tolerances. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 -5 MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING Ni 3.1.2 Proof-roll prepared subbase surface below concrete pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. 3.1.2.1 Completely proof-roll subbase in one direction. Limit vehicle speed to 3 mph. 3.1.2.2 Proof-roll with a loaded 10-wheel tandem-axle dump truck weighing not less than 15 tons. 3.1.2.3 Subbase with soft spots and areas of pumping or rutting exceeding depth of 1/2 inch require correction according to requirements in Division 31 Section 312000 "Earth Moving." 3.1.3 Proceed with concrete pavement operations only after nonconforming conditions have been corrected and subgrade is ready to receive pavement. S 3.2 PREPARATION 3.2.1 Remove loose material from compacted subbase surface immediately before placing concrete. S 3.3 EDGE FORMS AND SCREED CONSTRUCTION 3.3.1 Set, brace, and secure edge forms, bulkheads, and intermediate screed guides for pavement to required lines, grades, and elevations. Install forms to allow continuous progress of work and so forms can remain in place at least 24 hours after concrete placement. 3.3.2 Clean forms after each use and coat with form-release agent to ensure separation from concrete without damage. 3.4 JOINTS 3.4.1 General: Form construction, isolation, and contraction joints and tool edgings true to line with faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to centerline, unless otherwise indicated. 3.4.1.1 When joining existing pavement, place transverse joints to align with previously placed joints, unless otherwise indicated. 3.4.2 Construction Joints: Set construction joints at side and end terminations of pavement and at locations where pavement operations are stopped for more than one-half hour unless pavement terminates at isolation joints. 3.4.2.1 Butt Joints: Use epoxy bonding adhesive at joint locations where fresh concrete is placed against hardened or partially hardened concrete surfaces. 3.4.2.2 Keyed Joints: Provide preformed keyway-section forms or bulkhead forms with keys, unless otherwise indicated. Embed keys at least 1-1/2 inches into concrete. 1111 BLRB ARCHITECTS 04/02/13 AHBL,INC. BID SET PAGE: 321313 -6 {rr MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 3.4.3 Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins,manholes, inlets, structures, walks, other fixed objects, and where indicated. 3.4.3.1 Locate expansion joints at intervals of 15 feet, unless otherwise indicated. 3.4.3.2 Extend joint fillers full width and depth of joint. r 3.4.3.3 Terminate joint filler not less than 1/2 inch or more than 1 inch below finished surface if joint sealant is indicated. 3.4.3.4 Place top of joint filler flush with finished concrete surface if joint sealant is not indicated. 3.4.3.5 Furnish joint fillers in one-piece lengths. Where more than one length is required, lace or clip joint-filler sections together. 3.4.3.6 Protect top edge of joint filler during concrete placement with metal, plastic, or other temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint. 3.4.4 Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows: 3.4.4.1 Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint with grooving tool to a 3/8-inch radius. Repeat grooving of contraction joints after applying surface finishes. Eliminate groover marks on concrete surfaces. aw 3.4.5 Edging: Tool edges of pavement, gutters, curbs, and joints in concrete after initial floating with an edging tool to a 3/8-inch radius. Repeat tooling of edges after applying surface finishes. Eliminate tool marks on concrete surfaces. 3_5 CONCRETE PLACEMENT 3.5.1 Inspection: Before placing concrete, inspect and complete formwork installation and items to be air embedded or cast in. Notify other trades to permit installation of their work. 3.5.2 Remove snow, ice, or frost from subbase surface and reinforcement before placing concrete. Do not place concrete on frozen surfaces. ari 3.5.3 Moisten subbase to provide a uniform dampened condition at time concrete is placed. Do not place concrete around manholes or other structures until they are at required finish elevation and alignment. 3.5.4 Comply with ACI 301 requirements for measuring,mixing,transporting, and placing concrete. "` 3.5.5 Do not add water to concrete during delivery or at Project site. 3.5.6 Do not add water to fresh concrete after testing. NMI aa� BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 -7 air amok sir MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 3.5.7 Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place. 3.5.8 Consolidate concrete according to ACI 301 by mechanical vibrating equipment supplemented by hand spading, rodding,or tamping. 3.5.8.1 Consolidate concrete along face of forms and adjacent to transverse joints with an internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms. Use only square- faced shovels for hand spreading and consolidation. Consolidate with care to prevent dislocating reinforcement, dowels,and joint devices. +�► 3.5.9 Place concrete in two operations; strike off initial pour for entire width of placement and to the required depth below finish surface. Place top layer of concrete, strike off,and screed. 3.5.9.1 Remove and replace concrete that has been placed for more than 15 minutes without being covered by top layer, or use bonding agent if approved by Architect. 3.5.10 Screed pavement surfaces with a straightedge and strike off. 3.5.11 Commence initial floating using bull floats or darbies to impart an open textured and uniform surface plane before excess moisture or bleed water appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations or spreading surface treatments. 3.5.12 Curbs and Gutters: When automatic machine placement is used for curb and gutter placement, submit revised mix design and laboratory test results that meet or exceed requirements. Produce curbs and gutters to required cross section, lines, grades, finish, and jointing as specified for formed concrete. If results are not approved, remove and replace with formed concrete. 3.5.13 Slip-Form Pavers: When automatic machine placement is used for pavement, submit revised mix design and laboratory test results that meet or exceed requirements. Produce pavement to required No thickness, lines, grades, finish, and jointing as required for formed pavement. 3.5.13.1 Compact subbase and prepare subgrade of sufficient width to prevent displacement of paver machine during operations. 3.5.14 When adjoining pavement lanes are placed in separate pours, do not operate equipment on lig concrete until pavement has attained 85 percent of its 28-day compressive strength. 3.5.15 Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions,or low temperatures. 3.5.15.1 When air temperature has fallen to or is expected to fall below 40 deg F, uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg F and not more than 80 deg F at point of placement. 3.5.15.2 Do not use frozen materials or materials containing ice or snow. 3.5.15.3 Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in mix designs. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 -8 MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 3.5.16 Hot-Weather Placement: Comply with ACI 301 and as follows when hot-weather conditions exist: 3.5.16.1 Cool ingredients before mixing to maintain concrete temperature below 90 deg F at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated to total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option. 3.5.16.2 Cover steel reinforcement with water-soaked burlap so steel temperature will not exceed rr ambient air temperature immediately before embedding in concrete. 3.5.16.3 Fog-spray forms and subgrade just before placing concrete. Keep subgrade moisture uniform without standing water, soft spots,or dry areas. 3_6 FLOAT FINISHING 3.6.1 General: Do not add water to concrete surfaces during finishing operations. rill 3.6.2 Float Finish: Begin the second floating operation when bleed-water sheen has disappeared and concrete surface has stiffened sufficiently to permit operations. Float surface with power-driven floats, or by hand floating if area is small or inaccessible to power units. Finish surfaces to true planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform granular texture. 3.6.2.1 Medium-to-Fine-Textured Broom Finish: Draw a soft bristle broom across float-finished concrete surface perpendicular to line of traffic to provide a uniform, fine-line texture. its 3.6.2.2 Medium-to-Coarse-Textured Broom Finish: Provide a coarse finish by striating float- finished concrete surface 1/16 to 1/8 inch deep with a stiff-bristled broom, perpendicular to line of traffic. 3_7 CONCRETE PROTECTION AND CURING 3.7.1 General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. rr 3.7.2 Comply with ACI 306.1 for cold-weather protection. 3.7.3 Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing. 3.7.4 Begin curing after finishing concrete but not before free water has disappeared from concrete surface. voo BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 -9 rr� MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 3.7.5 Curing Methods: Cure concrete by moisture curing, moisture-retaining-cover curing, curing compound,or a combination of these as follows: 3.7.5.1 Moist Curing: Keep surfaces continuously moist for not less than seven days with the following materials: 3.7.5.1.1 Water. 3.7.5.1.2 Continuous water-fog spray. 3.7.5.1.3 Absorptive cover, water saturated and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers. is 3.7.5.2 Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least 12 inches, and sealed by waterproof tape or adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape. 'MO 3.7.5.3 Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating and repair damage during curing period. ■r 3.8 PAVEMENT TOLERANCES 3.8.1 Comply with tolerances of ACI 117 and as follows: 3.8.1.1 Elevation: 1/4 inch. 3.8.1.2 Thickness: Plus 3/8 inch,minus 1/4 inch. 3.8.1.3 Surface: Gap below 10-foot-long, unleveled straightedge not to exceed 1/4 inch. 3.8.1.4 Joint Spacing: 3 inches. 3.8.1.5 Contraction Joint Depth: Plus 1/4 inch, no minus. so 3.8.1.6 Joint Width: Plus 1/8 inch,no minus. 3.8.1.7 Slope: Cross slope and landings shall not exceed 2 percent. 3.9 FIELD QUALITY CONTROL 3.9.1 Testing Agency: Owner will engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports. sit BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 - 10 rri arr MEADOW CREST PLAYGROUND SECTION 321313 PROJECT NO. 11.12 CONCRETE PAVING 3.9.2 Testing Services: Testing of composite samples of fresh concrete obtained according to ASTM C 172 shall be performed according to the following requirements: 3.9.2.1 Testing Frequency: Obtain at least l composite sample for each 100 cu. yd. or fraction thereof of each concrete mix placed each day. 3.9.2.1.1 When frequency of testing will provide fewer than five compressive-strength tests for each concrete mixture, testing shall be conducted from at least five randomly selected batches or from each batch if fewer than five are used. 3.9.2.2 Slump: ASTM C 143/C 143M; one test at point of placement for each composite sample, but not less than one test for each day's pour of each concrete mix. Perform additional tests when concrete consistency appears to change. 3.9.2.3 Air Content: ASTM C 231, pressure method; one test for each composite sample, but not less than one test for each day's pour of each concrete mix. 3.9.2.4 Concrete Temperature: ASTM C 1064; one test hourly when air temperature is 40 deg F and below and when 80 deg F and above, and one test for each composite sample. 3.9.2.5 Compression Test Specimens: ASTM C 31/C 31M; cast and laboratory cure one set of three standard cylinder specimens for each composite sample. ri 3.9.2.6 Compressive-Strength Tests: ASTM C 39/C 39M; test 1 specimen at 7 days and 2 specimens at 28 days. "r 3.9.2.6.1 A compressive-strength test shall be the average compressive strength from 2 specimens obtained from same composite sample and tested at 28 days. 3.9.3 Strength of each concrete mix will be satisfactory if average of any 3 consecutive compressive- strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 500 psi. ea 3.9.4 Test results shall be reported in writing to Architect, concrete manufacturer, and Contractor within 48 hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing and inspecting agency, location of ae concrete batch in Work, design compressive strength at 28 days, concrete mixture g P � y , proportions and. materials, compressive breaking strength,and type of break for both 7-and 28-day tests. dill 3.9.5 Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by Architect but will not be used as sole basis for approval or rejection of concrete. gra 3.9.6 Additional Tests: Testing and inspecting agency shall make additional tests of concrete when test results indicate that slump, air entrainment, compressive strengths, or other requirements have not been met, as directed by Architect. 3.9.7 Remove and replace concrete pavement where test results indicate that it does not comply with specified requirements. or 3.9.8 Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 - 11 wff MEADOW CREST PLAYGROUND SECTION 321313 PROJ ECT NO. 11.12 CONCRETE PAVING 3.10 REPAIRS AND PROTECTION 3.10.1 Remove and replace concrete pavement that is broken, damaged, or defective or that does not comply with requirements in this Section. 3.10.2 Drill test cores, where directed by Architect,when necessary to determine magnitude of cracks or defective areas. Fill drilled core holes in satisfactory pavement areas with portland cement concrete bonded to pavement with epoxy adhesive. 3.10.3 Protect concrete from damage. Exclude traffic from pavement for at least 14 days after or placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of materials as they occur. rie 3.10.4 Maintain concrete pavement free of stains, discoloration, dirt, and other foreign material. Sweep concrete pavement not more than two days before date scheduled for Substantial Completion inspections. END OF SECTION 321313 Mill MS BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 321313 - 12 irii ass MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING r. PART 1 - GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification sections, apply to this section. 1_2 SUMMARY 1.2.1 Section Includes: ■ 1.2.1.1 Prepare subgrade as specified in Earth moving section 312000. 1.2.1.2 Placing geotextile fabric and crushed rock paving. 1_3 RELATED SECTIONS Ike 1.3.1 Division 31 —Earth Moving. 1.3.2 Division 32—Soil Preparation. 1_4 PERFORMANCE REQUIREMENTS AND QUALITY ASSURANCE 1.4.1 Contractor Qualifications: Install work using skilled persons, proficient in the trades required, in a neat orderly and responsible manner with recognized standards of workmanship. Contractor shall have not less than 5 years successful experience with installation of similar work. Submit lists of three projects completed in the last two years of projects in similar complexity including, owner's name and Ira telephone number,name of project,principal project consultant and telephone number. 1.4.2 Gravel Materials: Subject to inspection and acceptance. Provide source location and sample if ma requested prior to delivery to site. 1.4.3 Inspection will be made periodically during path installation, and at project completion and end of warranty period. 1.5 SUBMITTALS 'W 1.5.1 Materials Certificates signed by Material Producer and Contractor, certifying that each material item complies with or exceeds specified requirements. r�r 1.5.1.1 Crushed rock material including gradation, sieve analysis,color range and source. 1.5.1.2 One-half cubic foot(±) sample of crushed rock material. Sample shall illustrate the functional characteristics, and range of color and texture. 1.5.1.3 Geotextile Fabric: Manufacturer's data. as 1.5.1.4 Geotextile fabric: one square foot sample. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540- 1 aro MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING 1.5.1.5 Product data: Stabilizer Binder Paving additive. so 1.5.1.6 Prepare a sample finished paving section using specified materials after approval of material sample. Sample section shall be minimum of 6 foot x 6 foot. Sample paving section shall be approved in writing by the Landscape Architect before the crushed rock paving is constructed. 1.6 DELIVERY,STORAGE AND HANDLING 1.6.1 Stockpile delivered crushed rock near path location. 1.6.2 Material will be inspected upon delivery to site. us 1.6.3 Immediately remove unacceptable material from site. 1.7 PROJECT CONDITIONS 1.7.1 Visit site to determine existing conditions. 1.7.2 Crushed rock paving construction to precede planting operations. PART 2 -PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: 2.1.1.1 Available Products: Subject to compliances with requirements,products that may be incorporated into the Work include,but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include,but are not limited to,manufacturers specified. 2.2 MATERIALS 2.2.1 Crushed Rock: 2.2.1.1 1/4" minus crushed rock gravel -2 parts. 2.2.1.2 3/16" crushed rock gravel - 1 part. 2.2.1.3 1 1/2" pit run (for installation as needed for soft or low spots). 2.2.1.4 The crushed rock shall be free from clay lumps, vegetable mater,and deleterious material. 2.2.2 Weed Barrier Fabrics: BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540-2 MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING 2.2.2.1 Geotextile Fabric: Made from non-woven polyester fibers mechanically bonded by needling. Fabric shall meet or exceed the following properties: r,r Property Units Method Grab Strength (min.) 90 lbs. ASTMD-4632 Grab Elongation (min.) 70 lbs. ASTMD-4632 Trapezoidal Tear Strength(min.) 40 lbs. ASTMD-4533 Puncture Strength 50 lbs. ASTMD-3787 Mullen Burst Strength 140 lbs. ASTMD-3786 rr 2.2.3 Stabilizer Binder Paving Additive: 2.2.3.1 Stabilizer,a patented non-toxic, colorless, odorless,non-staining, concentrated organic powder that binds soil and crushed aggregate screenings, creating a natural-appearing, firm paving surface, or equal. Stabilizer is manufactured by Stabilizer Solutions, Inc., 205 S. 28th Street, Phoenix,AZ 85034. Ns Tel: 602-225-5900, Fax: 602-225-5902. ,, PART 3 - EXECUTION • 3_1 PLACEMENT 3.1.1 Cut earthwork to width of the crushed rock area an approximate depth for the crushed rock section as specified on the plans and details. Remove and spoil excess material. Ensure that subgrade is free of organic materials. +.r 3.1.2 Proofroll subgrade. Where soft spots are detected,scarify subgrade beneath crushed rock paving to a minimum of 6" depth. Moisture treat and compact to a minimum 95%proctor density as determined by ■r ASTM D698 or AASHTO T-99. Take moisture density tests every 50 feet or proofroll. Treat and compact subgrade, leaving it 4" below final grade for placement of crushed rock. Compact material and retest by proofroll ing. OWN 3.1.3 Spread crushed rock in location indicated on drawings. Rake the crushed rock smooth, roll and compact to meet proposed grade. Establish cross-slope for drainage across the area. wr 3.1.3.1 If the crushed rock area is part of a cross slope it should drain in the direction of the slope. Do not create low spots where water will puddle. 3.1.3.2 Mechanically tamp area. 3.1.3.3 Roll crushed rock to compact. 3.2 GROUND SURFACE PREPARATION rrr +rr BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540-3 rr� am MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING 3.2.1 Strip within the designated areas according to Section 329250 - Site Preparation and Demolition to depth required to install crushed rock paving. 3.3 SUBGRADE PREPARATION 3.3.1 Prior to placing crushed aggregate screenings, shape, fill, grade, and compact the sub-grade. Remove all soft,yielding subgrade material and backfill with 1 '/2" pit run. 3.3.2 Excavate sections and adjacent areas shall be reasonably smooth, compacted, and free from irregular surface changes. No geotextile shall be applied until subgrade is approved by the Landscape Architect. 3.4 BLENDING STABILIZER 3.4.1 Thoroughly pre-blend Stabilizer with the crushed aggregate screenings,at the rate is recommended by the manufacturer, prior to placing of Stabilized mix. It is essential that Stabilizer be mixed thoroughly and uniformly through the crushed aggregate screenings to achieve a successful result. Blending is best accomplished with a truck-mounted mixer; a portable mechanical mixer may be used. rrr Blend for a minimum of 15 minutes prior to placing on subgrade. Blend with material dry as water will make the material hard. MIN 3.4.2 Bucket blending is not acceptable. Blending with a rake or shovel is not acceptable. 3.4.3 Drop spreading of Stabilizer over raked crushed aggregate screenings and mixing Stabilizer by rototilling is not acceptable. 3.4.4 Soil stabilizer shall not be applied during,just prior to, or immediately following rainfall. wr 3.5 PLACING CRUSHED AGGREGATE SCREENINGS 3.5.1 Stabilizer: 3.5.1.1 After pre-blending,place the Stabilized crushed aggregate screenings on prepared subgrade, and rake smooth using a steel fine rake to desired grade and cross section. Place to avoid segregation, in one layer of 2 inches minimum thickness. Do not apply deeper than 2 inches in one lift. 3.6 WATERING 3.6.1 Water heavily to achieve full depth moisture penetration of the stabilized crushed aggregate screenings through the pathway profile. Water activates Stabilizer and it is essential that the full depth of Stabilized material is saturated. 3.6.1.1 Follow manufacturer's recommendations for ratio of water to material. Generally apply 25 to 45 gallons of water per 1-ton to achieve saturation of stabilized crushed aggregate screenings. 3.6.2 Test for depth of water penetration by random inspection of cores or using a probing device that reaches full depth. After inspection,fill core holes with material removed, smooth and hand tamp to match adjoining surface grade. so BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540-4 MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING 3.6.3 Allow watered mix to stand 6 -24 hours until surface water is not longer present. The paving mix should then be moist but not wet. 3.7 COMPACTION 3.7.1 Upon thorough moisture penetration, compact aggregate screenings to 85% relative compaction by compaction equipment such as a 2 to 4-ton double drum roller or 1,000 lb. single drum roller with vibratory plate tamp. Do not begin compaction for 6 hours after placement and up to 48 hours. 3.7.2 Hand tamp with 8 or 10 inch tamp in areas adjacent to walls,mowbands, concrete flatwork, planting and irrigation systems. 3.7.3 If surface aggregate dries significantly quicker than subsurface material, lightly mist surface before compaction. 3.8 INSPECTION rr� 3.8.1 Finished surface of paving shall be smooth, uniform, and solid, with no evidence of chipping or cracking. Cured and compacted paving shall be firm throughout with no spongy areas. Loose material shall not be present on the surface initially. Any significant irregularities in paving surface shall be repaired to the uniformity of entire installation. 3.8.2 Loose gravel on the surface, or unconsolidated crushed aggregate screenings below the surface, is evidence of improper bonding due to poor mixing or insufficient watering. Test the loose material for adequate Stabilizer by wetting,then tamping,and allowing it to dry. If the material still is unconsolidated, Stabilizer did not get mixed adequately throughout the crushed aggregate screenings. If the material now is solid, initial watering was insufficient. Cracking or sponginess is evidence of excessive Stabilizer in the mix. 3.8.3 Unconsolidated areas shall be excavated to the depth of the paving, and replaced with new stabilized crushed aggregate screenings. If area is dry,moisten damaged portion lightly. Pre-blend the required amount of dry stabilize powder as recommended by the manufacturer, in a concrete mixer. Add water and thoroughly moisten mix with 25 to 45 gallons per 1 ton of pre-blended material or to approximately 10%moisture content. Apply moistened pre-blended aggregate to excavated area to finish grade, compact with 8 to 10 inch hand tamp or 250 to 300 lb.roller. rrr 3.8.4 Keep traffic off repaired areas for 12 to 48 hours after completion. 3.8.5 Final thickness of completed paving shall no vary more than inch from dimension indicated. Measurements may be taken by means of test holes taken at random in finished surface. Correct any variations in the thickness beyond the allowable 'A inch by repeating the installation procedure. ,rr 3_9 REPAIRS ri. lai BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540-5 MEADOW CREST PLAYGROUND SECTION 321540 PROJECT NO. 11.12.116 CRUSHED ROCK PAVING 3.9.1 Excavate damaged area to depth of crushed rock paving and square off sidewalls. If area is dry, moisten damaged portion lightly. 3.9.2 Apply moistened pre-blended aggregate in a concrete mixer to excavated area to finish grade. Follow manufacturer's recommendation for blend and for amount of water to be applied. 3.9.3 Compact with 8 or 10 inch roller or 250 to 300 lb. roller. Keep traffic off areas for 12 to 48 hours after repair has been completed. 3.10 CLEANING 3.10.1 General: Contractor shall be responsible for daily removal of mud and debris from road surfaces on a daily basis. 3.10.2 Remove debris and excess materials from site. 3.11 PROTECTION mei 3.11 The Contractor shall be responsible for making a reasonable effort to protect the work from vandalism. If barricading or signage is necessary,the Contractor shall request such from the Owner. Owner shall provide any necessary barricading or signage. Any vandalism shall be brought to the attention of the Owner. END OF SECTION 321540 w 1116 NI rr S BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321540-6 ao MEADOW CREST PLAYGROUND SECTION 321816 PROJECT NO. 11.12.116 PLAY PAD PAVEMENT MARKING gas PART 1 - GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY 1.2.1 This Section specifies layout and paint lines on athletic event courts. rr 1.3 RELATED SECTIONS 1.3.1 Related Sections: The following Sections contain requirements that relate to this Section. 1.3.1.1 Division 32 Section "Asphalt Paving". 1_4 QUALITY ASSURANCE 1.4.1 Installer Qualifications: Perform pavement markings by installer regularly engaged in this type of work and with proper equipment for striping a project of this size. 1.4.2 Material Compatibility: Verify compatibility of striping paint with sealers,joint sealants, and all other surface treatments specified in Division 07. 1.4.3 Paint Materials: Paint markings shall not fade, crack, flake, or peel within the one year warranty period. r. 1.5 SUBMITTALS lig 1.5.1 Product Data: Submit Technical Data sheets indicating compliance with the tests specified in Table II of Federal Specification TT-P-115 F. 1.5.2 Samples: Submit sample color chip and standard color chip of Federal Specification 595 for 1111 white and yellow paint and other colors as applicable to painted game markings per drawings and details. 1_6 DELIVERY,STORAGE AND HANDLING am 1.6.1 Material Storage: Store, mix and prepare paints only in areas designated for that purpose. r�r 1.6.2 Furnish clean cans and buckets required for mixing paints and for receiving rags and other waste materials associated with painting. Clean buckets regularly. At the close of each day's work remove used rags and other waste materials associated with painting. 1.6.3 Take precautions to prevent fire in or around painting materials. Furnish and maintain hand fire extinguisher near paint storage and mixing area. 1_7 PROJECT CONDITIONS Nama BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321816- 1 MEADOW CREST PLAYGROUND SECTION 321816 PROJECT NO. 11.12.116 PLAY PAD PAVEMENT MARKING 1.7.1 Do not apply pavement markings in wet weather or when the ambient or receiving material temperature is below 40° F. PART 2 - PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to a product selection: 2.1.1.1 Available Products; Subject to compliances with requirements, products that may be rat incorporated into the Work include,but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering „m products that may be incorporated into the Work include,but are not limited to,manufacturers specified. 2.2 MATERIALS 2.2.1 General: Provide materials meeting requirements of FS TT-P-115 F, Type II, for White and Yellow Highway Traffic Paints. at 2.2.2 Yellow Paint: Visually match color chip No. 13538 of Federal Standard 595A when a wet film of 0.015"thickness is applied to a tin panel and let dry for 24 hours. In case of dispute,the color shall be within green and red tolerance limits when compared with the latest Highway yellow Color Tolerance Chart, PR Color No. 1, U.S. Department of Transportation, Federal Highway Administration. 2.2.3 White Paint: Match Federal Standard 595 for white paint and have the daylight directional a reflectance specified in FS TT-P-115 F, Type I. 2.2.4 Other Colors: DynaFlex Color Coat Acrylic Color Coating. ma 2.2.5 Drying Time: Furnish paint with a no-pick-up maximum drying time of 20 minutes,when tested according to ASTM D711 using a wet film thickness of 0.015" and when applied and tested at 77° F. PART 3 -EXECUTION a 3.1 EXAMINATION a 3.1.1 Examine surfaces to which paint will be applied and report immediately in writing to the Architect any conditions detrimental to the proper execution of this work. Do not proceed until unsatisfactory conditions are acceptably remedied. a 3.2 PREPARATION 3.2.1 Verify that surfaces to be painted are in proper condition to receive painting materials,that surfaces are clean, dry, smooth, and at proper temperature as recommended by paint manufacturer. BLRB ARCHITECTS 4/2/13 - DESIGN CONCEPTS BID SET PAGE: 321816-2 +rr MEADOW CREST PLAYGROUND SECTION 321816 PROJECT NO. 11.12.116 PLAY PAD PAVEMENT MARKING 3.2.2 Do not paint or finish any surface which is wet or damp. 3.2.3 Clean all surfaces free of adhering foreign matter,dirt and dust. 3.2.4 Lay out all striping, using dimension strings shown on plans, before painting. Report any discrepancies, interferences or changes in striping due to field conditions to Architect prior to painting. Paint Installer shall be required to remove paint, repair surface treatment and repaint stripes not applied in strict accordance with the drawings. 3_3 MIXING 3.3.1 Do not intermix materials of different character or different manufacturer. 3.3.2 Do not thin material except as recommended by manufacturer. 3.4 APPLICATION 3.4.1 Apply painting and finishing materials in accordance with the manufacturer's directions. Use applicators and techniques best suited for the material and surfaces to which applied. 3.4.2 Apply paint with mechanical equipment to produce uniform straight edges. Apply at manufacturer's recommended rates. 3.4.3 Minimum wet film thickness shall be 0.015". ON 3_5 PROTECTION 3.5.1 Provide protections to ensure that work will be without damage or deterioration until final acceptance. r► END OF SECTION 321816 +rr oi BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321816-3 +rirr rri al rrr ■r w a a a MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF vw PART 1 —GENERAL rr 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract,including General and Supplementary Conditions and Division 01 Specification Section,apply to this Section. 1.2 WORK INCLUDED so 1.2.1 It shall be the responsibility of the successful turf contractor to provide all labor, materials, equipment and tools necessary for the complete installation of an infilled synthetic turf system. The scope of the project shall consist of,but not necessarily be limited to,the following: 1.2.1.1 A synthetic turf system consisting of 2Y4"length, 100%true single strand exuded polyethylene slit film fibers,tufted into a triple primary backing with a hot applied polyurethane secondary backing. 1.3 RELATED SECTIONS tie 1.3.1 Division 31: Earth Moving. 1.3.2 Division 3: Concrete Paving. 1.3.3 Division 32: Porous Stone Base and Drainage System for Synthetic Turf. 1_4 QUALITY ASSURANCE 1.4.1 The Bidding entity shall meet the following experience criteria: 1.4.1.1 The Bidder must have been in business for at least five years,actively selling and installing in-filled synthetic turf and have installed a minimum of five(5)installations of(15,000 square feet or more)in-filled +s synthetic turf areas with varying shapes. 1.4.1.2 The Bidder must have the experience of five (5) acceptable installations of the specific system specified. Submit a list of all applicable installations with your bid response. 1.4.1.3 When submitting reference, include several references specific to turf replacement projects comparable to this project. 1.4.2 Compaction Testing: Soils tests during construction shall be done by an approved testing laboratory selected and paid for by the Contractor, pass or fail. err 1.4.3 Inspection and Approval: The Owner's Representative or Landscape Architect shall,at all times, have access to the project and the opportunity to inspect all workmanship;in addition,the Contractor shall be responsible for providing proper facilities for access and inspection. All materials,components,assemblies, workmanship and installation are to be observed by the Owner's Representative or Landscape Architect. Work not so inspected is subject to uncovering and replacement. The Owner reserves the right to reject,or ru require the correction of materials or workmanship, which, in the Owner's opinion, fails to meet BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819- 1 we MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF specifications. Any rejected or faulty work shall be repaired at no cost to the Owner, and reject materials shall be removed from the site. ars 1.4.4 All synthetic turf material shall be tested for construction and physical properties by an approved testing laboratory prior to installation. No turf shall be installed prior to delivery and approval of test results. Provide Owner with a minimum of forty-eight(48)hours notice prior to samples being taken. The Owner will take a sample from the material delivered to the site,and coordinate and pay for testing. The following companies are approved to carry out the testing: aii TSI Contact: Earl Miles @ 800-849-9901 or Commercial Testing—Contact: Larry Cooper @ 706-278-3935. 1.4.4.1 Testing will include the following. All tests shall conform to ASTM F1551 methods: 1.4.4.1.1 Total Weight w 1.4.4.1.2 Pile Weight 1.4.4.1.3 Primary Backing Weight ea 1.4.4.1.4 Secondary Backing Weight 1.4.4.1.5 Average Pile Height 1.4.4.1.6 Average Turf Bind Strength ■r 1.4.4.1.7 Average Grab Tear Strength 1.4.4.1.8 Pill Flammability 1.4.4.1.9 Perforation Spacing& Diameter 1.4.4.1.10 Ribbon Denier 1.5 SUBMITTALS 1.5.1 All Bidders shall submit resumes of both the Project Managers and Turf Foreman that will be utilized on the project. Subcontractors shall not be acceptable for the installation of the synthetic turf,inlays or infill. 1.5.2 All Bidders shall submit a list of five(5)completed installations over the last five(5)years. The list shall include installations that are similar in scope arid no less than 15,000 square feet in size. The list shall include names and phone numbers of the contacts. The contacts cannot be current or former employees of the Bidder. r 1.5.3 The Bidder shall submit the following with their bid response. Synthetic turf subcontractors may submit their product directly to the Owner,rather than through the General Contractor. If submitted directly, samples must be received prior to the submission deadline and should be mailed to the following address: rl BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819-2 Nit MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF Renton School District No. 403 Sample submitted from for Attn: Rick Stracke 7812 South 124th Street aili Seattle, Washington 98178 1.5.3.1 Detailed specifications and other descriptive literature,as may be required,to insure the Owner is clear on the scope of the turf installation and the specific product proposed. 1.5.3.2 One (1) 12"x 12"minimum synthetic turf sample(complete with backing). la 1.5.3.3 Sample copy of the Manufacturer's Standard Warranty. 1.5.3.4 Completed product information form at the end of this section. to 1.5.4 The Bidder must supply a Manufacturer's Warranty that guarantees the usability and playability of the synthetic surface for(8)eight years including: 1.5.4.1 The Manufacturer's Warranty shall include coverage for damage caused from UV degradation or defects in workmanship and materials in the manufacturing or installation of the synthetic turf. IMO 1.5.4.2 All turf warranties shall be limited to repair or replacement of the affected areas, at the Manufacturer's option,and shall include all necessary materials,labor,transportation costs,etc.to complete rr the required repairs. 1.5.4.3 Must have a provision to repair or replace such portions of the installed materials that no longer maintain a serviceable and playable surface. air 1.5.4.4 Must be a manufacturer's warranty from a single source covering workmanship and all self- manufactured or procured materials. 411 1.5.4.5 Guarantee that the entire system must maintain a G-Max rating of between 90 and 110 on the synthetic turf areas for the entire life of the system,tested using current industry standard testing methods. Additional rubber infill must be added or removed or repositioned as required to maintain this rating over the eight year life of the warranty. The initial acceptance test points shall be in each area of synthetic turf. 1.5.4.6 Guarantee that the finished synthetic turf system shall be capable of water infiltration at the minimum rate of 30"per hour. 1.5.5 The successful bidder will be required to prepare and provide plans and specifications sufficient for construction; all plans must be stamped by a Washington Professional Engineer or Registered Architect. Shop drawings shall include but not be limited to: a seaming diagram detail for entire play area layout, curbing details and drainage system detail. err 1.5.6 Sub-Base Acceptance: Prior to beginning installation,the manufacturer/installer of the synthetic turf shall inspect the earthen subgrade and supply a Certificate of Subgrade Acceptance for the purpose of obtaining manufacturer's warranty on the finished synthetic playing surface. Contractor shall receive Owner's on-site approval of subgrade prior to installation synthetic turf. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819—3 a► r�r MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF rrri 1.5.7 G-Max Test Report: Upon completion of the synthetic turf the Contractor shall test the G-Max 1111 rating of the field, and shall provide the Owner with a copy of the test report. 1.5.8 A written manufacturer's warranty shall cover the following items: ,rr 1.5.8.1 All materials and labor shall be warranted against defect for a period of eight(8)years from the date of final acceptance. 1.5.8.2 The warranty shall not be limited by the amount of usage on the turf play area. 1.5.8.3 The warranty shall not be limited by the turf area elevation above sea level. 1.5.8.4 The warranty shall not be limited by the type of footwear that can be worn on the turf play area. 1.5.8.5 Guarantee that any replacement materials required will be available for the entire eight year warranty period. 1.5.8.6 The warranty must be from a single source. PART 2—PRODUCTS 2.1 MANUFACTURERS ow 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: : 2.1.1.1 Available Products: Subject to compliances with requirements, products that may be incorporated into the Work include,but are not limited to,products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include,but are not limited to, manufacturers specified. 2.2 SYNTHETIC TURF SYSTEM MATERIALS 2.2.1 Fibers: irr 2.2.1.1 The finished surface shall appear as mowed grass with no irregularities and, resist abrasion and cutting from normal use. 2.2.1.2 Turf system shall be perforated for drainage. Minimum rate of infiltration: 30"per hour. 2.2.1.3 The yarn must have the ability to be warranted against wear and tear for a minimum of 8 years. Proof of this warranty availability must be submitted at the time of bid. 2.2.2 Manufacturers: Subject to compliance with requirements, provide products by one of the following: r� BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819-4 rrr MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF 2.2.2.1 Acceptable Manufacturers/Product: Forever Lawn of Puget Sound LLC,Playground Grass Ultra, Olympia, Washington. Phone: 360-455-9500. 2.2.2.2 Or Approved. de 2.2.3 Seaming: 2.2.3.1 All sewn seams shall be double stitched at a rate of no less than 4.2 spi. 2.2.3.2 All glued seams shall be adhered at no less than 25 ft. per gallon of adhesive de 2.2.3.3 All inlays shall be glued per the manufacture's recommendations. 2.2.4 Rubber In-fill Material: 100%of the infill shall be Recycled SBR Rubber. 1/8"minus granules. ""' No steel filaments are allowed. The exposed fiber height above the in-fill material shall be approximately one-half('A) inch. The entire synthetic turf system shall be resistant to attack by bacterial and to fungal growths. ea 2.2.5 All synthetic yarn must be ultra violet(UV)protected for an altitude of 3,000 feet above sea level at the yarn manufacturer's factory before installation. 2.2.6 Surplus Material: The Turf Contractor shall provide the Owner at each installation as part of this contract, the following surplus materials(transported to a storage location selected by the Owner): ea 2.2.6.1 Turf Fabric(Field Green): Provide a 10'x15' piece of extra turf to the Owner. 2.2.7 Anchor System: 2"x 4"composite lumber solid blocking mechanically anchored to the concrete edging as shown on the details. 2.2.8 Sample Performance Specifications: These will be evaluated by inspection of the samples provided and used only for purposes of evaluating submitted bids. 2.2.8.1 Appearance 2.2.8.1.1 Simulated appearance of natural grass. 2.2.8.1.2 Synthetic fiber blades generally straight, upright, and uniform in appearance. 2.2.8.1.3 Aesthetically pleasing overall appearance. 2.1.8.2 Texture 2.2.8.2.1 Flexible fiber blades generally soft to the touch. -I 2.2.8.2.2 Overall turf feels flexible to impact. 2.2.8.2.3 Turf allows for some sliding but does not over grip. aid BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819-5 ,rr MEADOW CREST PLAYGROUND SECTION 321819 PROJECT NO. 11.12.116 SYNTHETIC TURF PART 3—EXECUTION 3.1 SYNTHETIC TURF INSTALLATION 3.1.1 The finished stone base must be accepted by the turf contractor for planarity. It shall not vary more than 3/16"in any 10' direction. 3.1.2 The turf rolls are to be installed directly over the laser graded stone base. Extreme care should be taken to avoid disturbing the aggregate base. A 2-5 ton static roller shall be used to compact the base ahead of the placement of each roll of turf. The Contractor will be responsible for any damage to the base during removal/installation of the synthetic turf system after the deficiencies(if any)have been corrected as noted on the Certificate of Base Acceptance. 3.1.3 Full width rolls shall be laid out across the area. Remove any wrinkles prior to starting the seaming process. Using"state of the art",and current industry standard gluing or sewing techniques,each roll shall be as attached to the next with 12"wide seaming tape. Temperature must be above 50°during installation. There shall be no"head seams"permitted in the playing area. 3.1.4 The synthetic turf system is to be perimeter anchored using a composite lumber nailer attached to a concrete curb. The nailer and concrete curb shall be provided by the Contractor as a part of this contract. The turf shall be set in such a height so that the top on the infill material is flush to the top of the concrete curb/ edge or paving. 3.1.5 Infill Material: The installation of the infill material shall begin immediately following the turf se installation. The infill material shall be spread in lifts,utilizing equipment specifically designed for this type of application. Between lifts,the infill area shall be brushed(fibrillated)to ensure proper uniformity of depth, consolidation of the infill material and to fan and texture the fiber blades. Final turf texture and appearance shall replicate natural turf,with no irregularities. 3.2 MAINTENANCE ail 3.2.1 Contractor is responsible for protection of field through final acceptance. 3.2.2 Maintenance Instructions: Upon the completion of work, the Contractor shall furnish three (3) is copies of all product information, testing results, and warranty papers for all materials installed. These documents shall be placed in a three(3)ring binder,with the project name on the cover. The manuals shall include all necessary instructions for the proper care and preventative maintenance of the synthetic turf system, including but not limited to: cleaning,brushing,and top dressing with additional in-fill material. 3.3 WARRANTY rrr 3.3.1 The synthetic turf material shall be warranted as specified in Section 1.5.8. 3.3.2 Installation and workmanship shall be warrant:ied as specified in Section 017000. END OF SECTION 321819 oil BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321819-6 qlr MEADOW CREST PLAYGROUND SECTION 321822 PROJECT NO. 11.12.116 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF PART 1 - GENERAL 1_1 RELATED DOCUMENTS GO 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification sections, apply to this section. 1_2 SUMMARY go 1.2.1 It shall be the responsibility of the successful turf contractor to provide all labor, materials, equipment and tools necessary for the complete installation of a vertically draining porous stone base, drainage system and perimeter edge attachment detail. The scope of the project shall consist of but not necessarily be limited to the following: 1.2.1.1 A vertically draining porous aggregate base consisting of two layers of specifically sized stone. The finishing layer is specifically designed to provide a tight uniform finish surface over the base layer without settlement. MO 1.2.1.2 A water evacuation system consisting of a properly sized perimeter drain. ,do 1.2.1.3 An appropriately designed perimeter edge detail. 1.3 RELATED SECTIONS 1.3.1 Division 31 —Earth Moving. 1.3.2 Division 32—Concrete Paving 1.3.3 Division 32—Synthetic Turf lie 1_4 QUALITY ASSURANCE 1.4.1 The Bidding entity shall meet the following experience criteria: Ilk 1.4.1.1 The Bidder must have installed at least five porous stone base and drainage systems of similar scope and scale within the last three years. The installer shall have a qualified job foreman on site to certify the installation. 1.4.1.2 Coordinate installation of system with Geotechnical Engineer. Allow Geotechnical Engineer to observe conditions prior to layout, excavation and installation. 1.4.2 Proof Roll: Before stone base installation,the subgrade shall be proof rolled with a heavily loaded,pneumatic-tired vehicle. The vehicle should have a gross vehicle weight of at least 50,000 pounds with a loaded single axle weight of 18,000 pounds and a tire pressure of 100 psi. Areas which deform excessively under heavy wheel loads are not stable and should be removed and replaced to achieve a stable subgrade. rr or BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321822- 1 ii um MEADOW CREST PLAYGROUND SECTION 321822 PROJECT NO. 11.12.116 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF 1.4.3 Stone Base grade Verification: Contractor shall provide a surveyed verification of grades on a 10' grid across the synthetic turf subgrade. Local soil contour after final compaction and grading shall rrr not have deviations in surface shape greater than '/a"over a 10' span. 1.4.4 Stringline Verification: Contractor shall verify local soil contour using"string line"method: lengths of 50'-100' pulled taught with high/low spots marked and hand-dressed prior to installation of synthetic turf underlayment or turf. ors 1.5 SUBMITTALS 1.5.1 All Bidders shall submit resumes of the Project Manager that will be utilized on the project. MI 1.5.2 All Bidders shall submit,with the bid,a list of 5 completed installations of vertically draining porous stone base and drainage systems completed in the last five years. The list shall include names and phone numbers of the contacts. 1.5.3 All Bidders shall submit product data for each manufactured component to be used within the subdrainage system as well as a sample (1 lb.)of the aggregate base material with material gradation report from supplier and a letter of fracture verification. For synthetic turf underlayment,provide material data sheet,product sample,and warranty information. ilk 1.5.4 Submit,with shop drawings, design and calculations of the complete under drain system. Include all piping and accessories necessary for the collection and conveyance of the design flow to be accommodated by the playing area. oro 1.5.5 The Bidder shall submit the following: 1.5.5.1 Submit detailed specifications and other descriptive literature, as may be required,to insure the Owner is clear on the scope of the installation and the specific product proposed. Items such as cross- sections, edge detail,drainage plan and proposed slopes may be necessary. 1.5.6 Contractor shall provide a grading verification drawing upon completion of subgrade. Certification shall be submitted in electronic and hard copy formats. ON 1.5.7 The Bidder shall supply a Warranty on the vertically draining stone base and drainage system that guarantees the usability and specifically states that the installed system is suitable for its intended purpose. The Warranty period shall be one year from the date of substantial completion. +wr 1.6 DELIVERY,STORAGE,AND HANDLING 1.6.1 Deliver, store,protect and handle materials under provisions of Division 01 Specifications. 1.6.2 Stockpile delivered material near installation area a 1.6.3 Material will be inspected upon delivery to site. 1.6.4 Immediately remove unacceptable material from site. is BLRB ARCHITECTS 4/2/13 a DESIGN CONCEPTS BID SET PAGE: 321822-2 r r MEADOW CREST PLAYGROUND SECTION 321822 PROJECT NO. 11.12.116 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF ate PART 2 - PRODUCTS 2_1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: air 2.1.1.1 Available Products: Subject to compliances with requirements, products that may be incorporated into the Work include,but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include,but are not limited to,manufacturers specified. 2_2 GEOTEXTILE MEMBRANE an 2.2.1 Provide a semi-pervious geotextile fabric, Mirafi 140 N. 2_3 STONE AGGREGATE 2.3.1 The stone shall be installed in two layers: go • 4"depth Open Graded Stone(OGS)base aggregate. • 2"depth finish aggregate. The aggregate shall conform to the following: BASE (OGS) FINISH MESH SIZE % PASSING % PASSING aa 3/4" 100 5/8" 100 1/2" 90-100 100 3/8" 30-50 85-100 75-100 1/8" #4 40-75 60-90 #8 0-40 35-75 #16 0-20 10-55 #30 0-10 0-40 #60 0-15 #100 0-6 0-8 ar #200 0-4 0-4 Leveling base material must be fractured on 3 faces minimum. Contractor to provide gradation certification and verification of stone fracture prior to delivery and installation. 2.4 DRAINAGE PIPING ar 2.4.1 Per Manufacturer's recommendations for the synthetic turf system. 'ill BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321822-3 ar ome MEADOW CREST PLAYGROUND SECTION 321822 PROJECT NO. 11.12.116 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF 2.4.2 Perimeter drain—properly sized to 8"to 12"diameter,or corrugated perforated plastic pipe, �w ADS 120. 2.4.3 Un-perforated Pipe: HDPE corrugated pipe and press-on attached fitting complying with ASTM D2837. 2.4.4 Bedding around the HDPE Drainage System: All rock around the pipe shall be 3/8"crushed clean rock. 2.4.5 Multi-flow Flat Drain: Size and space as indicated on the drawings. PART 3 - EXECUTION tits 3.1 EXCAVATION AND SUBGRADE PREPARATION 3.1.1 A single benchmark must be established prior to any excavation and maintained by a licensed ei' surveyor of record during the entire construction process. Unless otherwise authorized by Soils Engineer fill shall meet the following requirements: 3.1.1.1 Plastic Index of not more than 30 per ASTM D424. 3.1.1.2 Minimum laboratory dry weight at optimum moisture content of 110 lbs./CF. ori 3.1.1.3 Satisfactory soil materials are defined as those complying with ASTM 2487 soil classification groups GW, GP, GM, SM and SP. elm 3.1.1.4 Unsatisfactory soil materials are defined as those complying with ASTM 2487 soil classification groups GC, SC, ML, CL, CH, OL, OH and PT. 3.1.1.5 Shale shall not be considered suitable for fill unless specifically approved by Soils Engineer. 3.1.2 The Soils Engineer will determine whether the materials in the excavated areas are suitable for 1111 use as select fill. All unsuitable material shall be removed and, prior to installation,the Soils Engineer shall approve all new materials to be used as select fill. 3.1.3 The subgrade shall be constructed using approved select fill material. This material shall be placed in lifts not greater than 8" in depth. Each lift(layer or course) shall be compacted to at least 95% of maximum dry density at optimum moisture content per ASTM D698 Standard Proctor method. 3.1.4 In accordance with the plans approved by the Owner,the entire area shall be excavated. It shall be the Bidders responsibility to stockpile enough suitable material from the existing soil to be reused,as necessary, in the restoration process. 3.1.5 All other excavated material shall be properly disposed of,off site or a designated area by Owner. The Bidder shall provide the Owner with a cubic yard number for the removal and replacement, with suitable compactable material,of unclassified material. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321822-4 oft MEADOW CREST PLAYGROUND SECTION 321822 PROJECT NO. 11.12.116 POROUS STONE BASE& DRAINAGE SYSTEM FOR SYNTHETIC TURF +w+ 3.1.6 The finished leveling base material shall be as shown in details, installed in 2"maximum lifts. Compact leveling base to 95% Standard Proctor, minimum. 3.1.7 The sub grade shall slope 0.5%to 1%toward the perimeter drain and shall not vary more than 1/4" in any 10' direction. The entire excavated area shall be proof rolled to check for any soft spots or un-compacted areas. The sub grade shall test and must achieve a minimum of 95% compaction. 3.1.8 The geotextile fabric shall be installed over a compacted and prepared sub grade. Seams shall be overlapped a minimum of 12". The geotextile shall extend into and completely wrap the perimeter drainage ditch. 3.2 BACKFILL 3.2.1 Do not backfill trenches until joints and connections have been inspected and approved by the Geotechnical Engineer. When placing backfill,prevent displacement of or injury to the pipe. 3_3 DRAINAGE SYSTEM 3.3.1 A properly sized perimeter drain, 8"in diameter, shall be installed per the drawings. The CPPP (corrugated perforated plastic pipe)shall be sloped at a minimum 0.3%toward the proposed storm drain/ catch basin. 3.3 VERTICALLY DRAINING POROUS STONE BASE 3.4.1 The base(OGS)aggregate layer shall be installed with care to avoid damaging the geotextile or the strip drains. The stone shall conform to the sieve in Section 2.02, A. The base(OGS) layer shall be 6"thick. The surface planarity shall not vary more than 3/8"in any 10' direction. 3.3.2 The finish aggregate layer is 2"thick and shall be installed in a single layer. The stone shall conform to the sieve in Section 2.02, A. The surface planarity must not vary more than 1/4" in any 10' direction. Enough finish stone shall be installed to insure a full 2"above the base(OGS)aggregate. All stone layers must be rolled in both directions to obtain maximum compaction and settlement. Jig 3.3.3 Contractor to protect the porous stone drainage system until synthetic turf has been installed. Any damage to the drainage system or fine grade will be repaired prior to turf installation. rrr END OF SECTION 321822 rn EN rr BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321822-5 a a a a a ■w a a a a a a a rr a a MEADOW CREST PLAYGROUND SECTION 321840 PROJECT NO. 11.12.116 POURED-IN-PLACE RESILIENT MATTING PART 1 GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification sections, apply to this section. 1.2 SUMMARY rrr 1.2.1 The Contractor shall supply all labor, materials and equipment necessary to furnish and install a synthetic,resilient material of gradated rubber granules and polyurethane binding agents mixed and poured- in-place on site, as required by the drawings and specifications. 1.3 RELATED SECTIONS dill 1.3.1 Division 31 —Earth Moving. 1.3.2 Division 32—Playground Equipment. 1_4 QUALITY ASSURANCES 1.4.1 Qualifications/References: The Contractor or subcontractor must have proven successful experience in the construction installation of poured in place resilient matting within the last three(3)years. The Contractor or their subcontractor designated to perform this work, shall be required to submit three(3) °11 references, 2 of which are in similar climates, for projects, which demonstrate successful experience with similar work. These projects must have been installed for a minimum of one(1)year. The installation must be completed by certified factory installers from the location of the manufacturer. rir 1.5 SUBMITTALS 1.5.1 Submittals: The Contractor shall submit two copies of the manufacturer's product data and installation details showing all dimensions, details,accessories and installation instructions. 1.5.1.1 The Contractor shall submit the following samples to the Owner's Representative within ten(10) days after the Notice to Proceed. 1.5.1.1.1 Material Samples-two(2) 12"x 12"x(thickness required for highest fall height),samples of each color of resilient matting being poured on the project. The samples shall be submitted to the Owner's Representative for approval upon request. mum 1.5.1.2 The Contractor shall submit the following test reports to the Owner's Representative within ten(10) days after the Notice to Proceed. rir 1.5.1.2.1 Test Reports - A copy of manufacturer's test reports indicating compliance with the latest U.S. Consumer Product Safety Commission's Technical Guidelines for Public Playground Safety with regard to thickness of product beneath various equipment height ranges. IPEMA certification required — 1292-99 or impact testing. In order to determine performance and longevity,the following test reports shall be required and tested by a certified laboratory. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321840- 1 w+r wit MEADOW CREST PLAYGROUND SECTION 321840 PROJECT NO. 11.12.116 POURED-IN-PLACE RESILIENT MATTING mil The tests must certify that each material item has been tested for the following physical properties: ASTM F-1292, Shock attenuation and HIC ASTM E-108, Flame Spread wir ASTM E-303, Skid Resistance ASTM D-412, Tensile Strength ASTM D-6241/86,Tear Resistance Permeability Proof that the product has been manufactured for at least 5 years. Material safety data sheets. Copy of a list of recommended maintenance procedures. 1.6 GUARANTEE AND REPLACEMENT 1.6.1 Warranty and Guarantee: The manufacturer shall guarantee all materials to be free from defects in workmanship and materials for a period of ten (10) years. Defects include edge raveling, resistance to mildew,bacterial growth,bubbling,delaminating,peeling,loss of integrity,color fading,shedding,cracking, N shrinkage and poor UV stability,temporary yellowing or discoloration. The manufacturer must warrant the product to perform in accordance with specifications and against material breakdowns caused by failure of chemical bond under normal use. 1.7 DELIVERY,STORAGE,& HANDLING 1.7.1 Deliver, store and handle all resilient matting materials to prevent damage and deterioration. All damage,cuts,tears to bags,etc.,resulting from improper handling will be the responsibility of the Contractor, and will be replaced at the Contractor's expense as deemed necessary by the Owner's Representative. Store and protect as required in cold weather conditions. N PART 2 PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: ea 2.1.1.1 Available Products: Subject to compliances with requirements, products that may be incorporated into the Work include, but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements, manufacturers offering N products that may be incorporated into the Work include,but are not limited to, manufacturers specified. 2.2 RESILIENT MATTING MATERIAL 2.2.1 New resilient matting material shall be a seamless,poured-in-place,hand-troweled application. The surfacing system shall consist of a rubber SBR cushion layer and a top EPDM rubber granule wearing course. N All rubber granules shall be bound together with a polyurethane binder. The entire system is poured over a compacted aggregate base course. The thickness of the layers shall be from manufacturers recommendations based on possible fall height. w 2.2.1.1 The following manufacturer's and products have been specified as those which are pre-approved BLRB ARCHITECTS 4/2/13 wl� DESIGN CONCEPTS BID SET PAGE: 321840-2 w MEADOW CREST PLAYGROUND SECTION 321840 PROJECT NO. 11.12.116 POURED-IN-PLACE RESILIENT MATTING and accepted as equal due to warranty,guarantee and materials required for maximum strength and durability. IN • "Surface America"by Tatonka Playgrounds. • "Playbound"by Surface America. • "GT Impax"by Gametime. • "Tot turf'by Robertson Industries, Inc. • "Pebble Flex"by Landscape Structures • "SpectraPour"by Spectra Turf Global Surfacing Systems 2.2.2 Materials 2.2.2.1 Aliphatic Urethane Binder: Two component urethane. Binder shall contain no solvents,have a low odor, and ultra violet resistant. 2.2.2.2 Wearing Course: Ethylene-Propylene-Dien-Monomere (EPDM) pigmented synthetic rubber granules chipped and gradated to 1-3.5 mm in size. Strand or shredded rubber is not acceptable. Binder for the wearing course only shall be non-ambering and aliphatic. 2.2.2.3 Cushion Course: Styrene-Butadien-Rubber (SBR) processed rubber granules, cellular rubber granules and polyurethane binder. The entire surface system shall be permeable to water at approximately 0.5 gal/sec. 2.2.2.4 Colors: See plans for wearing course colors. Selection shall be made from the standard available colors. Cushion course shall be all black—no color. Wearing course colors shall be as specified herein. Submit samples as specified. Owner's Representative has the right to reject the material on the basis of color or color mix inconsistency. 2.2.2.4.1 Color as specified on plans. 2.2.2.4.2 Shop drawings required. 2.2.2.5 Concrete: Install per plans and details and per Section 321313 Concrete Paving. '•" PART 3—EXECUTION 3.1 RESILIENT MATTING MATERIAL g.r 3.1.1 Subbase and Surface Preparation: The entire area is to be cleaned of all trees, stumps,vegetation and topsoil. Prepare the subbase by scarifying existing surface,raking and conforming to a consistent level air below top of existing concrete edger, and then roll to a compacted state. The subbase shall be brought to required grades,stable,properly compacted and frost-free. Remove any existing soil,if too high,or fill and compact as needed. When fill is required it shall be placed in six-inch lifts and compacted to a density of rr, 95%proctor. Spray play surface area with water to achieve 95%proctor. 3.1.1.1 See Section 312000, Earth Moving, for sub-base compaction requirements. 3.1.2 Slope: All play areas shall be sloped according to plans. All succeeding construction shall conform to the same slope. 41111 BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321840-3 ifit MEADOW CREST PLAYGROUND SECTION 321840 PROJECT NO. 11.12.116 POURED-IN-PLACE RESILIENT MATTING imi 3.1.3 Cushion Course: Contractor shall install thick cushion course (thickness as required by manufacturer and as called out on the plans) over the concrete base. The total thickness shall be recommended per ASTM 1292-99. 3.1.3.1 The Contractor shall adhere to the following installation procedure: 3.1.3.1.1 Determine manageable batch size. 3.1.3.1.2 Thoroughly mix ingredients by mechanical drum mixer to ensure all[granules are coated. Rubber granules, binder and mixing additives must be mixed at least 2 minutes to ensure a complete coating of particles. 3.1.3.1.3 Establish reference points using screed strips to establish proper depth of Poured-in-Place cushion course. The cushion course shall be Poured-in-Place by means of screeding and hand troweled to maintain a seamless application. Mil 3.1.3.1.4 Prior to placement of the cushion course, the Contractor shall prime the vertical edges of all existing concrete to ensure matting does not pull away from edges. ma 3.1.3.1.5 Allow the cushion course to cure completely before installing the top wearing course surface. 3.1.4 Top Wearing Course: The poured cap material shall be composed of EPDM granular rubber and mit polyurethane resin. The thickness of the poured cap material shall be determined by manufacturer but shall not be less than '/2" thick. The wearing course shall be screed, troweled, and compacted onto the cushion course. To maintain a seamless application,the top-wearing course must be completed within one working day. All rubber shall remain consistent in gradation and size. Color tinted binder will not be allowed. 3.1.4.1 The wearing course must be compacted manually by using hand trowels and light rollers. irr 3.1.4.2 All mixing shall be done by means of the mixmatic M 1200 D. Rubber granules, polyurethane binder and mixing additives must be mixed at least 2 minutes to ensure a complete coating of the particles. 3.1.5 Curing Time: Curing time in between the cushion course and top wearing course shall be approximately 12 hours. Curing time before use must be at least 48 hours after completion of wearing surface. 3.1.6 Weather Limitations: The matting shall not be applied during adverse weather conditions,such as rain,sleet or snowstorms. Based on specific manufacturer's recommendations,resilient matting shall not be installed if temperature is below 50°F. Should any additional cold weather curing ingredients be needed, it shall be at the Contractor's expense. 3.1.7 Protection: The Contractor shall be responsible for the protection of the resilient matting during the installation process. The Contractor shall also be responsible for the protection of the surface during curing period following the completion of the installation. It is required that a temporary 6'high chain link security fence be installed around the perimeter of all the playgrounds from the start of construction through project final acceptance. 3.1.8 Any damages to the surfacing during this curing period shall be paid for at the Contractor's expense. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321840-4 ow Rai MEADOW CREST PLAYGROUND SECTION 321840 PROJECT NO. 11.12.116 POURED-IN-PLACE RESILIENT MATTING au 3.2 Maintenance and Cleanup 3.2.1 Upon completion of work,the Contractor shall remove all containers and surplus materials leaving the site in a clean and orderly condition acceptable to the Owner's Representative. 3.2.2 Contractor shall provide the Owner's Representative with a certificate of satisfactory workmanship and warranty application to Surfacing Manufacturer. 3.2.3 Contractor shall supply the Owner's Representative with surfacing maintenance guidelines at the completion of the project. 3.2.4 Contractor shall supply the Owner's Representative with two (2) fifty (50) pound bags of the identical color of EPDM granular rubber used for the project and a five (5) gallon pail of resin. 3.2.5 Contractor to provide shop drawings for patterns in poured-in-place surfacing. ,rr END OF SECTION 321840 err +rr MI .rr 1111 BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 321840—5 re rir S S Ui Ui lib NI w rig Mil rig S w S S MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE rr PART 1 - GENERAL am 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1_2 SUMMARY "' 1.2.1 Section Includes: 1.2.1.1 Installation of chain link fencing and gates shall conform to the requirements stipulated herein. Chain link fencing shall be either buried perimeter fencing or standard fencing as indicated in the contract. 1.2.2 Related Sections: 1.2.2.1 Division 03 Section "Cast-in-Place Concrete" for concrete. 1.2.2.2 Division 31 Sections "Earth Work" and "Excavation and Fill" for site excavation, fill, and backfill where decorative metal fences and gates are located. ell 1_3 SUBMITTALS 1.3.1 Product Data: For each type of product indicated. 1.3.2 Shop Drawings: For fences: Include plans, elevations, sections, details, and schedules for fabrication and assembly. For gates. Include plans, elevations, sections,details,and attachments to other work. 1.3.3 Samples: For each fence material specified. .ri 1.3.4 Provide Samples 12 inches in length for linear materials. ma 1.3.5 Provide Samples 12 inches square for wire mesh. 1.3.6 Welding certificates. 1.3.7 Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for decorative metallic-coated steel tubular picket fences, including finish, indicating compliance with referenced standard and other specified requirements. 1.3.8 Maintenance Data: For gate operators to include in maintenance manuals. de rr BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119- 1 rw MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE Oa 1.4 QUALITY ASSURANCE 1.4.1 Installer Qualifications: Fabricator of products. MN 1.4.2 Installer: Must have five(5)years minimum experience installing this type of work, with three (3)projects of similar or greater size and complexity. Provide laborers and supervisors who are thoroughly familiar with type of construction involved and materials and techniques specified Retain "Welding Qualifications" Paragraph below if shop or field welding is required. If retaining, also retain "Welding certificates" Paragraph in "Submittals" Article,. 1.4.3 Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel." 1.4.4 Wind Load Pressure: see Structural General Notes and Drawings for wind loading table. 1.4.5 Approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. 1.4.6 Preinstallation Conference: Conduct conference at Project site. PART 2 - PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: as 2.1.1.1 Available Products: Subject to compliances with requirements, products that may be incorpo- rated into the Work include,but are not limited to,products specified. mit 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include,but are not limited to, manufacturers specified. 2.2 CONCRETE INS 2.2.1 Concrete footings shall be at least 3000 psi. 2.3 FENCING MATERIALS. 2.3.1 Type 1: Black Vinyl 4' ht. chain link fence as located on the Drawings. 2.3.2 Type 2: Black Vinyl 6' ht. chain link fence as located on Drawings. 2.3.3 Posts, gate frames,braces, rails, stretcher bars,truss rods and tension wire shall be of mai galvanized steel. 2.3.3.1 Gate hinges, post caps, stretcher bar bands, bolts, hardware, and other parts shall be of steel, am malleable iron,ductile iron, except that post tops, rail ends, and clips may be of aluminum. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119-2 +rii ell MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE die 2.3.4 All fencing,pipe, fabric, and accessories shall conform to the specifications described in the "Product Manual" published by the Chain Link Fence Manufacturers Institute unless further restricted by this section. air 2.3.5 Pipe: All posts,braces, rails, and gate framing members shall be black powder coated. The strip steel used in the manufacture of the pipe shall conform to either ASTM A-120 (Schedule 40)or ASTM A-569 (SS 40 by Allied Tube and Conduit Corp. or approved). 2.3.6 Fabric: Fabric shall be ASTM A392, Class 1,zinc coated(1.2 ounces), steel wire/fabric, woven in a 1 inch mesh size(at Restroom Building only), 9-guage(0.120 inches) coated wire size,black vinyl coated before weaving,with knuckle/knuckle selvages top and bottom. 2.3.6.1 Pipe conforming to ASTM A-120 shall receive not less than 1.8 ounces per square foot of zinc coating. Pipe conforming to ASTM A-569 shall be triple coated with a minimum of 0.9 ounces per square foot of zinc, 15 micrograms per square inch of chromate, and 0.3 mils of polyurethane finish. sour 2.3.6.2 Pipe shall be straight or have an installed deflection not greater than 1/2" per span or post. 2.3.7 Line Posts: All line posts shall be nominal 2-inch,2.375 inch O.D. steel pipe for fabric height up to 8 feet, and nominal 2-1/2 inch, 2-7/8 inch O.D. for fabric height over 8 feet to 16 feet or less. 2.3.8 Terminal Posts: Angles, corners, ends, and pull posts shall be nominal 2-1/2 inch,2.875 O.D. steel pipe for fabric height up to 8 feet, and nominal 3-1/2,4 inch O.D. for fabric height over 8 feet to 16 as feet or less. 2.3.9 Top Rail: All top rails shall be nominal 1-1/4 inch, 1.660 inch O.D. steel pipe. Top rails shall be provided with expansion couplings and shall be securely fastened to gate and terminal posts by means of suitable black powder coated connections. air 2.3.10 Bottom Rail: All bottom rails shall be nominal 1-1/4 inch, 1.660 inch O.D. pipe. 2.3.11 Bracing: Rails shall be nominal 1-1/4 inch, 1.660 inch O.D. black powder coated steel pipe with adjustable truss braces 3/8" in dia. and all fittings black powder coated finish. 2.3.12 Tension Bars shall be 3/16 x 3/4 black powder coated steel. we 2.3.13 Fabric Ties shall be minimum No. 9 gauge copper-bearing black powder coated steel wire, or similar black powder coated steel wire of a tensile strength and gauge not less than that of the main fence fabric. 2.3.14 Gates: Gate frames shall be nominal 1-1/2 inch, 1.900 inch O.D. black powder coated high carbon-welded steel tubing with internal bracing of nominal 1-1/4 inch, 1.660 inch O.D.,black powder coated high carbon-steel tubing welded at all joints to provide rigid water-tight construction. Gate fabric shall match the line fence fabric. Gates shall be per Drawings with heavy malleable iron extension arms as previously described. Swing gates shall be furnished with pivot-type hinges,center stop, and hold open devices. 2.3.14.1 Gates shall provide clear openings to widths as noted on the drawings. If requested on the submittal list,the contractor shall submit shop and erection drawings on the gates, hardware,type of gm BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119-3 le MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE as hangers, spacing,and all other details required for a complete installation. Latches are required only if called for in the contract. 2.3.15 Gate Posts. For gates over 4 feet wide, gate posts shall be nominal 3-1/2 inch,4.00 inch O.D. black powder coated steel pipe. The posts shall be provided with heavy malleable iron extension arms as previously described. For gates 4-feet wide and smaller,gate posts may be nominal 2-1/2 inch,2.875 inch O.D. m` 2.3.16 Post Caps: Formed Steel,malleable cast iron, or aluminum, sized to post diameter,with set screw retainer. irr PART 3 - EXECUTION 3.1 INSTALLATION 3.1.1 Site Preparation: Blade off all fence lines to finish grade before construction of fences. 3.1.2 Erection: The fence erection, including all connections, shall be made in accordance with , manufacturer's directions and the "Product Manual" published by the Chain Link Manufacturers Institute. 3.1.3 Concrete Placement: Posts and gate hold open devices shall be placed in concrete. Concrete shall meet the requirements of Standard Specification 03300 Cast-In-Place Concrete. The contractor shall insure that the fresh concrete has sufficiently cured prior installing and pulling the fabric. 3.1.4 Fabric shall be stretched taut enough to resist a 6-inch deflection laterally,top or bottom,when so force is exerted with the hand. Fabric shall be attached to and supported by terminal and gate posts by means of 3/16 x 3/4 inch black powder coated tension bars. sea 3.1.5 Fabric shall be fastened to line posts and to the top and bottom rails by means of tie wire (Fabric Ties) spaced approximately two feet apart. There shall be two complete wraps made with the tie wire around the fabric on all perimeter security fences. 3.1.6 Posts bracing,and other structural members shall be located on the inside of the security fence. 3.1.7 Top Rail shall pass through the extension arms to form a continuous brace from end to end of each stretch of fence. 3.1.8 Bottom Rail shall be installed in accordance with manufacturer's directions using couplings. oil 3.1.9 Bracing: All end and corner posts, unless otherwise shown, shall be suitably braced with pipe set in horizontal position,with adjustable truss braces between terminal and first line posts,complete with all fittings. Terminal posts shall be braced laterally in an approved manner. 3.1.10 Post Spacing and Setting: All posts shall be spaced in the line of the fence not to exceed 10- foot centers for a fence height not exceeding 8 feet and 8-foot centers for a fence height greater than 8 feet not exceeding 16 feet or as indicated on drawings. All posts shall be set in concrete foundations to a depth of not less than 36 inches for a fence height not exceeding 8 feet, and a minimum of 60 inches for a fence height greater than 8 feet not exceeding 16 feet. Nil BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119-4 .r MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE 3.1.11 Top of concrete mow strip for buried fabric shall be 6-inches below finish grade. Concrete foundations shall be circular in horizontal section, not less than 10-inches in diameter for line posts, and with a diameter not less than the outside diameter of the post plus 9 inches for each gate and terminal post am for a fence height not exceeding 8 feet. 3.1.12 Set terminal posts(end, corner, and gate)at beginning and end of each continuous length of fence and at abrupt changes in vertical and horizontal alignments. 3.1.13 Bolts and Hardware: r 3.1.14 All screws,nuts, bolts,bars,wire mesh,hinges and hinge pins shall be securely fastened to preclude surreptitious removal and assure visual evidence of tampering. 3.1.15 Hardware accessible from outside the area shall be restrained by peening,brazing, or spot welding to preclude removal. ma 3.1.16 Exceptions: Carriage bolts with round head need not be restrained when used to connect top or bottom rail, latches or center stop. Carriage bolts need not be restrained when used on hardware when the nut is not accessible from the outside. re 3.1.17 Exceptions: Bolts and hardware on fence shall not be restrained unless directed otherwise. 3.1.18 Painting: Surfaces that have been cut, filed, or where the galvanized coating has been damaged go shall be coated with a zinc-enriched paint to prevent corrosion per ASTM A 780. 3.1.19 Clearance: 3.1.19.1 The bottom rail shall be installed so that it is not over 2 inches above grade at any point. do 3.1.20 Provide suitable closure at irregularities in grade, such as curbs or ditches. This can be accomplished with suitable extensions from the bottom rail made from an equivalent material. Vertical posts shall not exceed 3 '/z inches open space to the adjacent post or solid structure. If fabric is utilized in the closure it shall be sufficiently secured to the bottom rail and extensions with fabric ties. Overlap the am fabric for the enclosure a minimum of 6 inches above the bottom rail. 3.1.21 Vertical posts shall not exceed 6 inches open space to the adjacent post or solid structure. do 3.1.22 Gates in the closed position shall have vertical and horizontal clearances not greater than 3 ''/2" inches. 3.1.23 Post Excavation: Drill or hand-excavate holes for posts in firm, undisturbed soil. Excavate holes to a diameter of not less than 4 times post size and a depth of not less than 24 inches plus 3 inches for each foot or fraction of a foot that fence height exceeds 4 feet 3.1.24 Post Setting: Set posts in concrete at indicated spacing into firm, undisturbed soil. 3.1.24.1 Verifythatposts are set plumb, alined and at correct height and spacing, and hold in position aligned, g during setting with concrete or mechanical devices. me 3.1.24.2 Posts Set in Concrete: Extend post to within 6 inches of specified excavation depth, but not closer than 3 inches to bottom of concrete. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119-5 ■r MEADOW CREST PLAYGROUND SECTION 323119 PROJECT NO. 11.12.116 CHAIN LINK FENCE 3.1.24.3 Space posts uniformly at 8 feet o.c. or per plans. 3.2 GATE INSTALLATION 3.2.1 Install gates according to manufacturer's written instructions, level. plumb, and secure for full opening without interference. Attach hardware using tamper-resistant or concealed means. Install ground-set items in concrete for anchorage. Adjust hardware for smooth operation and lubricate where necessary. fri 3_3 ADJUSTING 3.3.1 Gates: Adjust gates to operate smoothly,easily,and quietly, free of binding,warp,excessive deflection, distortion,nonalignment, misplacement, disruption, or malfunction,throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding. 3.3.2 Lubricate hardware and other moving parts. so 3.3.3 DEMONSTRATION: Train Owner's personnel to adjust,operate,and maintain gates. END OF SECTION 323119 ort SI BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 323119-6 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION rw PART 1 - GENERAL WI 1.1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1_2 SUMMARY wr 1.2.1 This Section includes valves,piping, sprinklers, specialties,accessories, controls, and wiring for lawn and shrubbery irrigation systems. 1.3 DEFINITIONS 1.3.1 Pipe sizes used in this Section are nominal pipe size (NPS) in inches. Tube sizes are Standard size in inches. Equivalent SI (metric) sizes are indicated in millimeters (mm)in parentheses. 1.3.2 Supply Piping: Piping from water source to connection to irrigation system pressure piping. rir Piping is under same pressure as water supply. Piping in this category is not included in this Section. 1.3.3 Pressure Piping: Piping downstream from supply piping to and including control valves. Piping is under irrigation system pressure. Piping in this category includes pressure regulators, water meters, and backflow preventers, when used. 1.3.4 Circuit Piping: Piping downstream from control valves to irrigation system sprinklers, emitters, devices, and drain valves. Piping is under pressure(less than pressure piping)during flow. 1.3.5 Control Valve: Manual or automatic (electrically operated)valve for control water flow to NO irrigation system zone. 1.3.6 Drain Piping: Downstream from circuit piping drain valves. Piping is not under pressure. to 1.3.7 Drain Valve: Manual or automatic(pressure operated)drain valve for draining of irrigation system circuit piping. 1.4 SYSTEM PERFORMANCE REQUIREMENTS 1.4.1 Minimum Water Coverage: Not less than 100 percent. dim 1.4.2 Components and Installation: Capable of producing piping systems with the following minimum working pressure ratings except where indicated otherwise. 1.4.2.1 Pressure Piping: 200 psig(1380 kPa). 1.4.2.2 Circuit and Drain Piping: 200 psig(1380 kPa). mi 1.5 SUBMITTALS 1.5.1 General: Submit the following according to the Conditions of the Contract and Division 1 Specification Sections. dis BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000— 1 orr 4106. MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION 1.5.2 Product data including pressure rating, rated capacity, settings, and electrical data of selected models for the following: 1.5.2.1 Valves, including general-duty, underground, manual and automatic control, and quick coupler types, and valve boxes. 1.5.2.2 Sprinkler assemblies including bodies, nozzles, check valves,and devices. 1.5.2.3 Triple swing joint riser assemblies. MIN 1.5.2.4 Controls, including controller wiring diagrams. 1.5.2.5 Wiring. • 1.5.3 Maintenance data for inclusion in "Operating and Maintenance Manual" specified in Division 1 Section "Contract Closeout" for the following: iim 1.5.3.1 Automatic control valves. 1.5.3.2 Sprinkler Assemblies. 1.5.3.3 Controllers. 1.5.4 Record Documents: Prepare and provide per Section 01720. Project Record Documents. 1.5.4.1 Update record drawings daily. a 1.5.4.2 Make record drawings available in Irrigation Contractor's job site office for access at all times. 1.6 QUALITY ASSURANCE 1.6.1 Comply with requirements of utility supplying water for prevention of backflow prevention 1.6.2 Comply with requirements of authority with jurisdiction for irrigation systems. 1.6.3 Installer Qualifications: Engage an experienced Installer who has completed irrigation systems similar in material, design, and extent to that indicated for Project that have resulted in construction with a record of successful in-service performance. 1.6.4 Listing/Approval Stamp, Label, or Other Marking: On equipment, specialties, and accessories made to specified standards. 1.6.5 Listing and Labeling: Equipment, specialties, and accessories that are listed and labeled. 1.6.5.1 The Terms "Listed" and "Labeled": As defined in "National Electrical Code," Article 100. 1.6.5.2 Listing and Labeling Agency Qualifications: A "Nationally Recognized Testing Laboratory" +rr (NRTL)as defined in OSHA Regulation 1910.7. 1.6.6 Product Options: Irrigation system piping, specialties, and accessories are based on specific types, manufacturers, and models indicated. Components with equal performance characteristics produced by other manufacturers may be considered, provided deviations in dimensions,operation, and other BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000-2 mormar MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION characteristics do not change design concept or intended performance as judged by the Architect. The burden of proof of product equality is on the Contractor. Refer to Division 1 Section "Product Substitutions." au 1.7 PROJECT CONDITIONS 1.7.1 Perform site investigation, research public utility records,and verify existing utility locations. Verify that irrigation system piping may be installed in compliance with original design and referenced standards. 1_8 EXTRA MATERIALS 1.8.1 Deliver extra materials to Owner. Furnish extra materials matching products installed as described below. Package them with protective covering for storage and label clearly describing contents. 1.8.1.1 Quick Coupling Valves: Furnish quantity of units equal to 10 percent of amount of each size installed. rrw 1.8.1.2 Sprinkler Assemblies: Furnish quantity of units, including bodies and nozzles,equal to 10 percent of amount of each type installed. 1.8.1.3 Triple Swing Joint Riser Assemblies: Furnish quantity of assemblies equal to 10 percent. 1.8.1.4 Valve Access Keys: Furnish (1)tee handle key for curb stop at water meter, (1)key handle to operate ball isolation valves and(1)key to operate remote control valve adjustment. 1.8.1.5 Quick-Coupler Operating Keys: Furnish (2) Quick coupler key assemblies fitted with hose swivel and gate valve, and(1)Quick coupler key to be utilized for"Winterization Blowout." 'r' PART 2 -PRODUCTS 2.1 MANUFACTURERS aft 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: AN 2.1.1.1 Available Products; Subject to compliances with requirements, products that may be incorporated into the Work include, but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include, but are not limited to,manufacturers specified. to 2.2 MANUFACTURERS 2.2.1 Manufacturers: Subject to compliance with requirements,provide products by the following, or approved equal: iir 2.2.1.1 Ball Valves for Underground Installation: 2.2.1.1.1 Red& White brass ball valves 2.2.1.2 Automatic Control Valves: 2.2.1.2.1 Rain Bird Sprinkler Mfg. Corp. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000-3 +rr ism MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION rir 2.2.1.3. Valve Boxes: 2.2.1.3.1 Carson Industries, Inc. as 2.2.1.4 Quick Coupler Valves and Keys 2.2.1.4.1 Rain Bird Sprinkler Mfg. Corp. 2.2.1.5 Sprinkler Assemblies 2.2.1.5.1 Rain Bird Sprinkler Mfg. Corp. is 2.2.1.6 Swing Joint Assemblies 2.2.1.6.1 Hunter Industries wr 2.2.1.6.2 Rain Bird 2.2.1.7 Controllers: 2.2.1.7.1 Sentinel by The Toro Company. um 2.2.1.8 Remote Irrigation Control Equipment: 2.2.1.8.1 Sentinel by The Toro Company. 2.3 MAINLINE,LATERAL LINE AND SLEEVE PIPES 2.3.1 Refer to Part 3 Article "Piping Applications" for identification of systems where pipe materials specified below are used. 2.3.2 Polyvinyl Chloride(PVC) Plastic Pipe: ASTM D 1785, PVC 1120, Schedule 40, 160 psig (1100 kPa)minimum pressure rating for 8-inch(200 mm)and smaller sizes, 'with plain ends. 2.3.3 Pipe shall be marked with the manufacturer's name,class of pipe and NSF seal. Pipe walls shall be uniform and shiny. Pipe and fittings must be non-toxic,free from taste and odor and self-extinguishing and conform to the following minimums: 2.3.3.1 Tensile strength 79 degrees 6000 psi 2.3.3.2 Izod impact strength (notices) 15 ft. lb./in. 2.3.3.3 Modulus of elasticity 300,000 psi 2.3.3.4 Compressive strength 8,500 psi 2.3.3.5 Flexural strength 10,500 psi 2.3.4 Lines under paved areas that are not sleeved shall be PVC Schedule 80 conforming to standards of ASTM 1785. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000—4 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION de 2.3.5 '/2"poly pipe and fittings shall be thick walled polyethylene pipe specifically designed for connection of irrigation heads to lateral lines. 2.3.6 Sleeves: Irrigation sleeves shall be Class 200 PVC,minimum 6"size. 2.4 PIPE FITTINGS d 2.4.1 Refer to Part 3 Article "Piping Applications" for identification of systems where pipe fitting materials specified below are used. 2.4.2 All PVC pipe fittings shall be solvent weld type except where swing joints, risers, etc. require threaded fittings. All threaded fittings shall conform to standards of ASTM D 2466 (Schedule 80). 2_5 JOINING MATERIALS 2.5.1 Solvent Cement: ASTM F 656 primer and ASTM D 2564 solvent cement in color other than orange. 2.5.2 Gaskets for Plastic Flanged Joints: Materials recommended by plastic pipe and fittings err manufacturer. 2_6 CONTROL VALVES 2.6.1 Description: Manufacturer's standard control valves for circuits, of type and size indicated,and as follows: rr 2.6.1.1 Automatic Control Valves: PEB-CP or PEB-CP-PRS per valve key for 24 volt systems. Include proprietary pressure regulating device if noted on the plan. Glass filled, nylon reinforced diaphragm type,normally closed,with manual flow adjustment, and operated by 24 volt AC solenoid. 2.6.1.1.1 Maximum cold water working pressure 150 psi. 2.6.1.1.2 Dual ported diaphragm to allow equal pressure on both sides of diaphragm wall regardless of line pressure. 2.6.1.1.3 Diaphragm constructed of nylon reinforced rubber. 2.6.1.1.4 Non-corrosive exhaust orifice with an opening larger than the diaphragm ports so that any pieces of sand or silt passing through the diaphragm will not be trapped beneath the solenoid actuator. 2.6.1.1.5 One-piece solenoid design with captured plunger and spring for easy servicing. 2.6.1.1.6 Valve body and cover shall be glass-filled plastic. Cover retention mechanism shall be '/4" stainless steel studs. .�r 2.6.1.1.7 Manual internal and external bleed mechanism. 2.6.1.2 Quick-Coupling Valves: Rain Bird 44LRC(1")with matching key and swivel hose ell. Factory-fabricated, 2-piece assembly. Include coupler water-seal valve;removable upper body with spring-loaded or weighted,rubber-covered cap. Install on triple swing joint assembly with Anti-rotation device as indicated in Details on Construction Documents. Provide quick coupling key with 1"resilient vos BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000-5 r�r wow rrr MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION seated ball valve and 1"hose swivel with ASME B1.20.7 3/4 11.5NH threads for garden hose on outlet and required threaded brass nipples. 2.6.1.2.1 Locking Top Option: Include vandal-resistant, locking feature with 2 matching keys. 2.6.1.3 Winterization Blowout Connection Quick Coupling Valve: Factory fabricated,2-piece assembly. Include coupler water seal valve,removable upper body with spring loaded or weighted, rubber cap. Install on triple swing joint assembly with anti-rotation device as indicated in Details on Construction Documents. Provide quick coupling key of equal size. 2.6.1.3.1 Locking Top Option: Include vandal-resistant, locking feature with 2 matching keys. • 2.6.2 Control Valve Boxes: Carson model 1419 standard valve box. Polyethylene(PE), acrylonitrile- butadiene-styrene(ABS), fiberglass, polymer concrete, or precast concrete box and cover. Size as required for application. Carson Jumbo or approved equivalent with T-type lid on box. 2.6.2.1 Wrap Mirafi filter fabric around all openings in control valve boxes prior to backfilling to NW prevent dirt from entering valve box around pipes, etc. 2.6.2.2 Drainage Backfill: Cleaned gravel or crushed stone, graded from 7/8 inch(16 mm)maximum to 1/4 inch (6 mm)minimum. 2.6.3 Service Boxes for Key-Operated Control Valves 2.6.3.1 Boxes located within paved areas: Cast-iron box with telescoping lop section of length required for depth of bury of valve. Include cover with lettering "WATER," and bottom section with base of size to fit over curb stop and barrel approximately 3 inches(75 mm) in diameter. 2.6.3.2 Boxes located within lawn or planting areas: 6 inch i.d. PVC sleeve cut to length required for depth of bury of valve. Cover top of sleeve with 10"round valve box set flush with finish grade. 2.6.3.3 Include Valve Key, 36 inches(915 mm)long with tee handle and key end to fit valve. 2.7 SPRINKLERS • 2.7.1 Description: Manufacturer's standard sprinklers designed to provide uniform coverage over entire area of spray shown on Drawings at available water pressure, as follows: 2.7.1.1 Bodies: 2.7.1.1.1 Rain Bird 1800 Series. 2.7.1.1.2 Rain Bird rotors—Series Models 3500, 5000, 7005. 2.7.1.1.3 High impact Plastic except where other material is specified. 2.7.1.1.4 Stainless steel riser option for high-vandalism prone turf areas. 2.7.1.1.5 Easy arc adjustment of 40-360 degrees through top of sprinkler for part circle models. 2.7.1.1.6 Water lubricated gear drive mechanism. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000-6 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION rr� 2.7.1.1.7 Heavy Duty Stainless steel retraction springs. 2.7.1.1.8 Stainless steel trip gears. rr 2.7.1.1.9 Standard black rubber cover or optional purple rubber cover for non-potable applications. ri. 2.7.1.1.10 Optional check valve eliminates puddling due to low-head drainage. 2.7.1.1.11 Pressure activated wiper seal. 2.7.1.1.12 Female flow tube threads. 2.7.1.1.13 Nozzles interchangeable from front without special tools. rrr 2.7.1.1.14 Radius adjustment of up to 25%without changing nozzle. 2.7.2 Nozzles: 2.7.2.1 Contain three ports for optimum short, mid and long-range coverage. ari 2.7.2.2 Minimum operating pressure 30 psi. 2.7.2.3 Multiple color-coded nozzle sizes available for design flexibility 2.8 SWING JOINT ASSEMBLIES .r 2.8.1 Description: Manufacturer's swing joint assemblies designed to connect lateral lines and sprinkler or rotor heads. 2.8.1.1 Spray Head Swing Joints shall be Hunter SJ-512 factory assembled three-way swing joint assembly, or approved alternate. 2.8.1.2 Rotor Swing Joints shall be Rain Bird TSJ-12 pre-manufactured swing joint. 2_9 AUTOMATIC CONTROL SYSTEM 2.9.1 Description: Existing Toro Sentinel controller to be used. 2.9.2 Wiring: UL 493, solid copper conductor, insulated cable, suitable for direct burial. err 2.9.2.1 Low-Voltage, Branch Circuit Cables: Type UF,No. 14 AWG minimum,between controllers and automatic control valves. Jacket color is other than feeder-circuit-cable jacket color. Furnish cables with jackets of different colors for multiple cable installation in same trench. Verify that wire sizing is adequate for application. 2.9.2.2 Splicing Materials: 2.9.2.2.1 Splices above grade: screw type connectors. rr 2.9.2.2.2 Splices below grade direct burial wire: 3-M DBY or DBR. 2.10 LOW VOLTAGE CONTROL WIRE AND CONNECTORS .r� wir BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000—7 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 1 1.12.1 16 IRRIGATION kW 2.10.1 All buried control wire must be insulated copper designed for 24 volts or higher. Minimum size of wire is AWG#14. Common wire shall be of the same size or larger than control wire. Control wire shall be red, common wire shall be white. Size of longer wire runs requiring gauges larger than AWG#14 shall be sized according to electric valve manufacturer's recommendation and irrigation controller's recommendation. 2.11 PIPE BEDDING 2.11.1 Sand Pipe Bedding: 2.11.1.1 Utilize screened concrete sand free of particles larger than 1/4"O.D. PART 3 -EXECUTION 3.1 EXAMINATION 3.1.1 Investigate and verify available water supply, water pressure and flow characteristics. Advise am Architect of any potential problems prior to commencement of work. 3.2 PREPARATION 3.2.1 Set stakes to identify proposed sprinkler locations. Obtain Landscape Architect's approval before excavation. me 3.3 EARTHWORK 3.3.1 Trenching: All mainline pipe shall be installed in trenches sufficiently wide to permit tamping aus tools for backfilling alongside both sides of the pipe. The pipe shall be shall be laid on stable soil with the trench bottom evenly graded. Ledge rock,boulders and large stones shall be removed to provide no contact with the pipe. Excavations remaining from the removal of large rocks shall be refilled and rr compacted with select material. 3.3.2 Backfilling: Mainline and lateral pipe shall have a minimum/maximum cover as specified in Section (02810-3.8 Piping Installation)of clean backfill. If 115 volt wire and pipe are in same trench wire shall be at code depth below the pipe. Backfill material shall be free from any roots,wood or any type of vegetative or organic material. WHERE INSUFFICIENT FINE MATERAL IS AVAILABLE FOR BACKFILLING OVER AND UNDER PIPING FOR A MINIMUM OF 4",THE PIPES SHALL BE SAND-BEDDED WITH SAND,NO LESS THAN 4"OVER, UNDER AND ON SIDES OF PIPE. SAND WILL BE PROVIDED BY IRRIGATION CONTRACTOR AS INCIDENTAL TO THIS PORTION OF THE CONTRACT. �r1 3.3.3 Backfilling of mainlines shall be accomplished in 6" lifts, compacting each lift to ninety(90%) density at optimum moisture content. Backfill with 4"over pipe,compacting alongside and under the pipe with appropriate compactors. Additional lifts shall be 6"maximum and compacted before adding the next loose lift. Backfill procedures shall ensure that the trench shall show no future settlement. Contractor shall obtain the approval from the Landscape Architect for the first mainline compacting effort. us 3_4 SLEEVING rrr 3.4.1 Install piping in sleeves where crossing sidewalks. No BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000- 8 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION do 3.4.1.1 Install piping sleeves by boring or jacking under existing paving, where possible. 3.4.1.2 Sleeve size shall be minimum double the diameter of irrigation pipe. 3.4.1.3 Provide separate sleeves for each pipe. to 3.4.1.4 Provide one additional 4"sleeve for future use at each sleeve location. Mark both ends with buried rebar. ®.r 3.5 PIPING APPLICATIONS 3.5.1 Use pipe,tube, fittings,and joining methods according to the following applications. +�+ 3.5.2 Pressure Piping Underground: Use the following: 3.5.2.1 All Sizes: Schedule 40 PVC plastic, socket-type pipe fittings; and solvent-cemented joints. dd 3.5.3 Circuit Piping: Use the following: 3.5.3.1 All Sizes: Class 200, PVC plastic, socket-type fittings; and solvent-cemented joints. 3.5.4 Branches and Offsets at Sprinklers and Devices: All Sizes: Schedule 40 PVC plastic, socket- type pipe fittings; and solvent-cemented joints. 3.5.5 Drain Piping: ASTM D 2241, SDR 21 or 26, polyvinyl chloride(PVC)plastic pipe; ASTM D 2466, Schedule 40, PVC plastic, socket-type fittings; and solvent-cemented joints. 3.5.6 Sleeves: All sizes: High density corrugated polyethylene smooth interior pipe. 4 through 10- inch diameters shall meet strength requirements of AASHTO M252. Material shall conform to ASTM D1248 Type III, Category 4, Grade P33, Class C. Pipe joint and fittings shall conform to AASHTO M252 or AASHTO M294. (Hancor HI-Q or equal). Sleeves shall be a minimum of twice the diameter of the pipe to be placed within the sleeve. In areas where length of sleeve exceeds 20' use Schedule 40, PVC plastic pipe with ASTM D 2466, Schedule 40, PVC plastic, socket type fittings,and solvent-cemented vie joints. 3.6 JOINT CONSTRUCTION 3.6.1 Threaded Joints: Thread pipes with tapered pipe threads according to ASME B 1.20.1,apply tape or joint compound, and apply wrench to valve ends into which pipes are being threaded. t"m 3.6.2 Polyvinyl Chloride(PVC) Piping Solvent-Cemented Joints: Construct joints according to ASTM D 2672 and ASTM D 2855. rir 3.6.2.1 Handling of Solvent Cements, Primers, and Cleaners: Comply with procedures in ASTM F 402 for safe handling when joining plastic pipe and fittings with solvent cements. 3.6.3 Dissimilar Materials Piping Joints: Construct joints using adapters that are compatible with both piping materials, outside diameters,and system working pressure. Refer to "Piping Systems- Common Requirements" Article for joining dissimilar metal piping. 3.7 PIPING SYSTEMS-COMMON REQUIREMENTS .r. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000-9 ..r MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION 3.7.1 General Locations and Arrangements: Drawings indicate general location and arrangement of piping systems. Indicated locations and arrangements were used to size pipe and calculate friction loss, and in other design considerations. Install piping as indicated, except where deviations to layout are approved on coordination drawings. Do not install any valves,backflow preventers or Pressure Piping outside of property lines. 3.7.2 Install pressure piping at a uniform slope of 6 inches per 100 feet(1:200)minimum,down to drain points. Drain valves are required on pressure piping at all low points on the system. Indicate locations by dimension from fixed objects on Record Documents. Install circuit piping to specified cover depths paralleling finish grade profile. System will be winterized by displacing water with compressed air. Drain valves are not required on circuit piping unless specifically noted on drawings. 3.7.3 Install components having pressure rating equal to or greater than system operating pressure. 3.7.4 Install piping free of sags and bends. 3.7.5 Locate groups of pipes parallel to each other, spaced to permit valve servicing. aro 3.7.6 Install fittings for changes in direction and branch connections. 3.7.7 Piping Connections: Except as otherwise indicated make piping connections as specified below. 3.7.7.1 Install unions,in piping 2 inches(50 mm)and smaller, adjacent to each valve and at final connection to each piece of equipment having 2-inch (50 mm)or smaller threaded pipe connection. 3.7.7.2 Install flanges, in piping 2-1/2 inches(65 mm)and larger,adjacent to flanged valves and at final connection to each piece of equipment having flanged pipe connection. 3.7.7.3 Install dielectric fittings to connect piping of dissimilar metals. 3.8 PIPING INSTALLATION 3.8.1 Install underground polyvinyl chloride(PVC)plastic pipe according to ASTM D 2774. 3.8.2 Lay piping on solid sub-base,free of rocks larger than 2 inches in diameter and/or any sharp edged objects, uniformly sloped without humps or depressions. r ft 3.8.2.1 Install polyvinyl chloride(PVC)plastic pipe in dry weather when temperature is above 40 deg. F (4 deg. C). Allow joints to cure at least 24 hours at temperature above 40 deg. F (4 deg. C)before le testing, unless otherwise recommended by manufacturer. 3.8.3 Drain Pockets: Excavate to sizes indicated. Backfill with cleaned gravel or crushed stone, graded from 7/8 inch(16 mm)to 1/4 inch (6 mm)minimum, drain material to 12 inches(300 mm)below ern grade. Cover drain material with sheet of Mirafi 140N filter fabric or equal and backfill remainder with excavated material. 3.8.4 Minimum Cover: Provide following minimum cover over top of buried piping: 3.8.4.1 Pressure Piping: Minimum depth of 24 inches (600 mm),up to a maximum 30"(750 mm) below finished grade, or not less than 18 inches(460 mm)below average local frost depth. 3.8.4.2 Circuit Piping: 12 inches(300 mm)minimum, 16"(400 mm)maximum. 3.8.4.3 Drain Piping: 12 inches(300 mm)minimum. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000- 10 Irsiimminommumm MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION +�r 3.8.4.4 Sleeves: 24 inches (600 mm)minimum, 30-"(750 mm)maximum. Ale 3.8.5 Tunneling: Install pipe under streets or other obstructions that cannot be disturbed, by tunneling, boring, or jacking. OMB 3.8.6 Install piping under sidewalks and paving in sleeves. 3_9 VALVE APPLICATIONS 3.9.1 Drawings indicate valve types to be used. Where specific valve types are not indicated, following requirements apply: 3.9.1.1 Buried Valves 2 Inches(50 mm)and Smaller: Bronze-body, curb stop, with tee head, service box and shutoff rod. 3.10 VALVE INSTALLATION 3.10.1 Valves: Install underground valves in valve boxes. rw 3.10.2 Curb Stops: Install underground curb stops in service boxes. 3.10.3 Control Valves: Install in valve boxes, arranged for easy adjustment and removal. Install union on downstream side of valve. Set boxes square to each other and in relation to other elements such as curbs, walks and buildings. 3.11 SPRINKLER INSTALLATION mmo 3.11.1 Sprinklers: Flush circuit piping with full head of water and install sprinklers after hydrostatic test is completed. Head spacing shall not exceed that recommended by manufacturer with as uniform a water coverage as possible. Avoid over-spray onto building and hard surface pavements. 3.11.1.1 Install lawn sprinklers at manufacturer's recommended heights. mm 3.11.1.2 Install shrubbery sprinklers at heights indicated. 3.11.1.3 Locate part-circle sprinklers to maintain a minimum distance of one foot(305 mm)from walls and six inches(150 mm) from other boundaries, unless otherwise indicated. 3.12 CONNECTIONS 3.12.1 Connect piping to sprinklers, devices, valves,control valves, specialties, and accessories. tam 3.12.2 Connect water supplies to irrigation systems. Include backflow preventer. 3.12.3 Electrical Connections: Connect to power source,controllers, and automatic control valves. rr 3.12.4 Minimum requirements for electrical installations are specified in Division 16. 3.12.5 Ground systems according to Division 16 Section "Grounding." BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000- 11 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 11.12.116 IRRIGATION 3.13 FIELD QUALITY CONTROL 3.13.1 Required inspections/approvals by Landscape Architect: 3.13.1.1 Staked head locations with 1 x 2 x 12 inch wood stakes or new/straight wire stakes with colored flags attached; and lime lines or painted lines indicating piping layout on ground prior to trenching. 3.13.1.2 Pressure piping line visual inspection and pressure testing prior to back-filling; all 24 volt a.c. control wires to be installed prior to this visit. 3.13.1.2.1Cap and subject the piping to a static pressure of 50 psig(345 kPa)above the operating as pressure without exceeding the pressure rating of the piping system materials. Isolate test source and allow to stand for 4 hours. Leaks and loss in test pressure constitute defects that must be repaired. Testing: perform hydrostatic test of piping and valves before backfilling trenches. Piping may be tested in sections to expedite work. 3.13.1.2.2 Repair leaks and defects with new materials and retest system or portion thereof until satisfactory results are obtained. 3.13.1.3 Circuit piping visual inspection and pressure testing prior to back-filling pipes. 3.13.1.3.1 Cap and subject the piping to a static pressure of the existing water service line. Drip leaks in swing joints risers allowed. Leaks in piping or glued joints shall be repaired. ■r 3.13.1.3.2 Repair leaks and defects with new materials and retest system or portion thereof until satisfactory results are obtained. 3.13.1.4 Operational Test: Perform Operational testing after hydrostatic testing is complete,backfill is in place, and sprinklers are adjusted to final position. 3.13.1.4.1 Water coverage of all Lawn and Planting areas: if any lawn or planting areas appear to have se exceptional wet or dry coverage areas as determined by the Landscape Archi tect(L.A.),the L.A. shall perform a Water Audit executed in accordance with the Irrigation Association (I.A.)"Certified Landscape Irrigation Auditor" procedures to determine the Distribution Uniformity (DU)of the irrigation zone(s) in question. If,based on the Water Audit,the DU factor is determined to be less than 70 percent the rr► Contractor shall perform installation corrections as deemed necessary by the Landscape Architect to improve the DU coverage performance to 70 percent or above. Contractor shall adjust and L.A. shall re- audit the irrigation system as required until specified performance is achieved. 3.13.1.4.2 Check operation of Automatic Controller and Valves. 3.14 CLEANING AND ADJUSTING m 3.14.1 Flush dirt and debris from piping before installing sprinklers and other devices. NI 3.14.2 Adjust automatic control valves to provide flow rate of rated operating pressure required for each sprinkler circuit. 3.14.3 Carefully adjust lawn sprinklers so they will be flush with, or not more than 1/2 inch(13 mm) asi above, finish grade after completion of landscape work. 3.14.4 Adjust settings of controllers and automatic control valves. 3.15 COMMISSIONING BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000- 12 MEADOW CREST PLAYGROUND SECTION 328000 PROJECT NO. 1 1.12.1 16 IRRIGATION did 3.15.1 Starting Procedures: Follow manufacturer's written procedures. If no procedures are prescribed by manufacturers,proceed as follows: did 3.15.1.1 Verify that specialty valves and their accessories have been installed correctly and operate correctly. 3.15.1.2 Verify that specified tests of piping are complete. 3.15.1.3 Check that sprinklers and devices are correct type. air 3.15.1.4 Check that damaged sprinklers and devices have been replaced with new materials. 3.15.1.5 Check that potable water supplies have correct type backflow preventers. 3.15.1.6 Energize circuits to electrical equipment and devices. .rr 3.15.1.7 Adjust operating controls. 3.15.2 Operational Testing: Perform operational testing after hydrostatic testing is completed, backfill is in place, and sprinklers are adjusted to final position. 3.16 DEMONSTRATION "' 3.16.1 Demonstrate to Landscape Architect that system meets coverage requirements and that automatic controls function properly. rim 3.16.2 Demonstrate to Owner's maintenance personnel operation of equipment, sprinklers, specialties, and accessories. Review operating and maintenance information. 3.16.3 Provide seven (7)days written notice in advance of demonstration. END OF SECTION 328000 rr dill a a�. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 328000- 13 aw 110 110 1.1 S Sit NW OW S wrr MEADOW CREST PLAYGROUND SECTION 329113 PROJECT NO. 11.12.116 SOD LAWN iim PART 1 — GENERAL am 1_1 SUMMARY 1.1.1 Drawings and general provisions of Contract, including General Conditions and Division -1 Specifications, apply to this section. 1.1.2 Section Includes: Planting required for this work is indicated on the drawings and, in general, includes installation of sod lawn, erosion control,weed control and maintenance of the finished work. 1.2 RELATED SECTIONS 1.2.1 Related Work Specified Elsewhere: 1.2.1.1 Division 32—Soil Preparation. ta 1_3 QUALITY ASSURANCE 1.3.1 Qualifications of Workmen: Provide at least one person who shall be present at all times rr during execution of the Work and who shall be thoroughly familiar with the type of materials being installed and the best methods for their installation and who shall direct all work performed under this section. 1.3.2 Standards: 1.3.2.1 Sod shall be nursery-grown (farm-grown)under climatic conditions similar to or hardier than those at the site. Sod shall have normal habit of growth and be healthy,vigorous and free of disease, insects, insect eggs and larvae. Sod material shall meet or exceed the specification of Federal, State and local laws requiring inspection for plant disease and insect control. 1.4 SUBMITTALS 1.4.1 Make submittals in accordance with the provisions of the Contract—submittal procedures of these specifications. 1.4.2 Certification of Material: 1.4.2.1 Supply on-site 12"x 12"sample of each sod specified for inspection and approval in advance by the Landscape Architect. 1.4.2.2 Supply Grower's written recommendations for fertilizer type, rate of application, and frequency. 1.4.3 Manufacturer's Certificates of Conformance: al 1.4.3.1 Fertilizer to 1.4.4 Schedule for Installation: It is the Contractor's responsibility to coordinate all work with the Landscape Architect. 1.4.5 Record Drawings: During the course of the installation, carefully record in red-line on a print oil of the planting drawings all changes made to the lawn area layout during installation. Submit an approved record drawing to the Landscape Architect prior to final inspection. iiN BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329113 - 1 rrr MEADOW CREST PLAYGROUND SECTION 329113 PROJECT NO. 11.12.116 SOD LAWN 1.4.6 Certificates: 1.4.6.1 All certificates required by law shall accompany shipments. 1.4.6.2 Upon completion of the installation and prior to final inspection, deliver all certificates to the Landscape Architect. sir 1.5 PRODUCT HANDLING 1.5.1 Delivery and Storage: as 1.5.1.1 Deliver all items to the site in their original containers, with all labels intact and legible, at the time of the Landscape Architect's inspection. 1.5.1.2 Coordinate delivery and installation of sod to ensure sod is installed immediately upon delivery. 1.5.1.3 Use all means necessary to protect new lawn areas before, during, and after installation and to protect the installed work and materials of all other trades. 1.5.2 Replacements: In the event of damage or rejection, immediately make all repairs and replacements necessary for the approval of the Landscape Architect and at no additional cost to the Owner. au 1.6 JOB CONDITIONS 1.6.1 Site Information: Preserve and protect all sod on site prior to and during installation. Protect from wind, drought, unusual weather and vandalism. Store all sod on site within limits of work. 1.6.2 Existing Utilities: vio 1.6.2.1 Underground: Locate all underground utilities prior to planting. 1.6.3 Protection of Persons and Property: Protect adjacent property, public walks, curbs and pavement from damage. Do not block public access routes with plant material. lei PART 2— PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: 2.1.1.1 Available Products; Subject to compliances with requirements, products that may be incorporated into the Work include,but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include,but are not limited to,manufacturers specified. 2.2 SOD ow 2.2.1 The Contractor shall provide sod to all new lawn areas and to those lawn areas requiring restoration from the Contractor's operations. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329113 -2 MEADOW CREST PLAYGROUND SECTION 329113 PROJECT NO. 11.12.116 SOD LAWN 2.2.2 Sod: Non-net"JB Pacific Northwest sod, a blend of 60% Perennial Ryegrass and 40% Fine Fescue" Sod Mixture from JB Instant Lawn and Nursery, Redmond, WA;phone: 800-599-2699 or approved equal. Approved equal must be from a local grower and be established in growing sod in sandy loam soils. Sod grown in heavy clay soils is not acceptable. All required certifications apply for "approved equal". Sod shall contain 65%perennial turf-type ryegrass by weight and 35%hard fescue by weight. 2_3 FERTILIZER 2.3.1 General: All fertilizer shall be delivered to the site in bags labeled with the manufacturer's guaranteed analysis. Provide fertilizer per Grower's recommendations and as approved by the Landscape Architect in the submittals. 2.3.2 Special Protection: If stored at the site,protect fertilizer from the elements at all times. 2.4 PLANTING SOIL/TOPSOIL 2.4.1 General: Planting Soil/Topsoil: Conforming to Section 329250—Soil Preparation. 2_5 OTHER MATERIALS 2.5.1 All other materials not specifically described but required for a complete and proper planting installation, shall be selected by the Contractor subject to the approval of the Landscape Architect. a.i PART 3 - EXECUTION 3.1 SURFACE CONDITIONS: 3.1.1 Inspection: NW 3.1.1.1 Prior to all work of this section, carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence. NIS 3.1.1.2 Verify that lawn installation may be completed in accordance with the original design and the referenced standards. me 3.1.1.3 Discrepancies: In the event of discrepancy, immediately notify the Landscape Architect for specific instructions. 3_2 INSTALLATION PREPARATION 3.2.1 Prepare subgrade in all lawn areas by scarifying to an 8"minimum depth and removing rocks and debris over 1" in diameter. Subgrade soils should be free-draining and without any impervious soils or other materials harmful to plant growth. Notify the Landscape Architect of any subgrade conditions am deleterious to plant growth. 3.2.2 Spread topsoil to a minimum depth of 4"after settlement in all lawn areas. 3.2.3 Thoroughly rototill topsoil to a minimum depth of 6 inches. 3.2.4 Fine grade per Specifications in turf areas as indicated on drawings. Rake entire surface and r conform to grading tolerances. Grade edges to 1"below adjacent paved surfaces to provide a smooth transition. Roll as necessary to firm grade to satisfaction of the Landscape Architect. r�r BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329113 -3 MEADOW CREST PLAYGROUND SECTION 329113 PROJECT NO. 11.12.116 SOD LAWN r�r 3.2.5 Apply fertilizer to the prepared lawn areas at rates recommended by sod grower and lightly rake to incorporate into the soil. 3.3 SOD INSTALLATION 3.3.1 Moisten sod bed and roll lightly for compaction. 3.3.2 Lay sod strips per supplier's instructions. Tightly butt joints,trim edges to conform to smooth 5 curves and straight lines of pavement. Sod is to be flush with paved surfaces after settlement. Avoid gaps and overlaps and stagger sod joints in a brick-like fashion. S 3.3.3 Remove any bumps, undulations,or low-high spots with a light rolling. 3.3.4 Water daily for a minimum of two weeks to prevent dehydration. 3.3.5 Protection: Protect all turf areas by erecting temporary fences, barriers, signs,etc. as necessary to prevent trampling. 3_4 PROTECTION 3.4.1 Protect all new turf areas against harm from wind, unusual weather and the public. Do not work in, over, or adjacent to planting areas without proper protection and safeguards. S 3.5 TURF ESTABLISHMENT AND FINAL ACCEPTANCE 3.5.1 General: The Contractor shall maintain all new lawn areas in this project; shall be responsible for the survival of turf in acceptable condition and shall maintain all new lawn areas in a neat and orderly fashion until Final Acceptance of the project by the Landscape Architect. The Contractor will be held responsible for all damage or loss caused by his inattention or carelessness. The Contractor shall repair damage caused by traffic, vandalism, weather or other outside causes. 3.5.2 Preliminary Inspection and Acceptance: When work specified in this Section has been completed,an inspection will be made within seven(7) days of Contractor's request. The Landscape 5 Architect will generate a punch list of items that will require revisions or completion to comply with the Contract documents. Preliminary acceptance of landscaping will be given when items on the punch list have been completed to the satisfaction of the Landscape Architect. a 3.5.3 Establishment Period: The Establishment Period will commence on the date of Preliminary Acceptance and will extend to Substantial Completion or Final Acceptance by the Landscape Architect of landscape work,whichever is later. Maintenance during this period will include: 3.5.3.1 Watering: Water areas of new turf so they receive adequate water for survival of the plant in a healthy position. a 3.5.3.2 Lawns shall be fertilized every six weeks from March through September per Grower's written recommendations. Lawns shall be maintained weed-free. S 3.5.3.3 Lawns are to be mowed weekly or as needed to maintain a neat appearance. All grass clippings shall be removed from the site. Maximum height of lawn shall not exceed three inches. S 3.5.3.4 Protect all lawn areas against damage, including erosion and trespassing,by providing and maintaining proper safeguards. 3.5.3.5 Debris Control: Debris control shall be accomplished in all landscaped lawn areas on a regular NNE basis, at least weekly or more often where necessary. This will include leaf fall control in Fall period. BLRB ARCHITECTS 4/2/13 rri DESIGN CONCEPTS BID SET PAGE: 329113 -4 rri MEADOW CREST PLAYGROUND SECTION 329113 PROJECT NO. 11.12.116 SOD LAWN Policing for paper and litter in all areas shall be conducted at least weekly. During the Fall period leaves, wind blown into gutters and catch basins,are considered as litter and shall be removed as debris. m 3.5.4 Guarantee: All new turf areas shall be guaranteed by the Contractor to be in a healthy condition for a period of one year from the date of Final Acceptance. 3.5.4.1 Inspection: Make periodic inspections, at no cost to the Owner, during the guarantee period. Determine what changes, if any, should be made in the Owner's maintenance program. 3.5.4.2 Replace, at no cost to Owner and as soon as weather conditions permit, lawn areas not in vigorous,thriving condition. 3.5.5 Final Acceptance: Final inspection of the work of the Section will be made at the time of the ,,, Final Inspection of the entire project or earlier, if approved by the Landscape Architect. A final punch list will be issued. Final Acceptance of the new turf areas which are the responsibility of the Contractor will be contingent upon Final Acceptance of the entire project or at the determination of the Landscape Architect if earlier than Final Acceptance of the entire project. 3_6 FINAL CLEANUP ar 3.6.1 Remove all debris, such as cans, surplus materials and trimmings, from the site. END OF SECTION 329113 rr rir sag ailit BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329113 -5 �rrrrr� rnr NMI 111111 MI lit Nil 1111 w Mil MEADOW CREST PLAYGROUND SECTION 329250 PROJECT NO. 11.12.116 SOIL PREPARATION 41011 PART 1 - GENERAL 1_1 RELATED DOCUMENTS do 1.1.1 Drawings and general provisions of Contract, including General Conditions and Division-1 Specifi- cations, apply to this section 1_2 DESCRIPTION OF WORK IN THIS SECTION 1.2.1 This work includes the following: 1.2.1.1 Subgrade preparation 1.2.1.2 Soil preparation and finish grading .,r 1.2.1.3 Cleanup and maintenance 1_3 WORK IN OTHER SECTIONS 1.3.1 Division 31 —Site Clearing and Site Demolition 1.3.2 Division 32—Earthmoving 1.3.3 Division 32—Sod Lawn 1.3.4 Division 32— Irrigation 1.4 SUBMITTALS s 1.4.1 Submit agricultural soils analysis tests results and recommendations for pH adjustments and amendments. 1.4.2 Submit samples of topsoil and mulch. 1.4.3 Obtain acceptance of sand and topsoil sieve analysis prior to delivery on site. Air 1.4.4 Operations and Maintenance Manuals: It shall be the responsibility of the Contractor to identify any and all maintenance requirements that will affect proper and healthy maturation of the landscaping. soMaintenance tasks outlined shall be submitted in writing to the Architect prior to substantial completion and shall identify special needs,time requirements, and duration of maintenance to Owner. ■ 1.5 SCHEDULING 1.5.1 Coordinate soil preparation work with installation of other site improvements. 1_6 QUALITY ASSURANCE 1.6.1 Contractor Qualifications: Contract is to be performed by currently licensed firm(s)active and ex- am perienced in the respective trade(s)represented in the drawings and specifications. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329250- 1 err MEADOW CREST PLAYGROUND SECTION 329250 PROJECT NO. 11.12.116 SOIL PREPARATION w 1.6.2 Maintenance: Contractor is responsible for care and maintenance of all unaccepted work until pro- ject, or part of project, is accepted for substantial completion. Upon acceptance, Owner shall be responsible for maintenance of the accepted work. 1.6.3 Review of Existing Conditions: Contractor shall review site before commencement of construction. If existing conditions are in variance with drawings and specifications,notify Architect before proceeding. 1.7 ENVIRONMENTAL CONDITIONS 1.7.1 Prepare soil only when topsoil is not in muddy or wet conditions. Take precautions to control run- iso off of topsoil and fertilizers and to contain in place on project site. The Contractor is required to comply with provisions of Section 312513 Erosion Control. 1.8 WARRANTY AND REPLACEMENT 1.8.1 Warranty: Contractor shall not be held responsible for damage resulting from excessive climatolog- mil ical conditions that occur after substantial completion. Contractor shall be responsible for missing or vandal- ized materials until substantial completion. One year warrantee period shall commence on date of substantial completion of project or portions of project unless herein stated otherwise 1_9 MAINTENANCE Maintenance shall begin following installation and shall continue as follows: iris 1.9.1 Protect and maintain until substantial completion 1.10 CLEAN UP 1.10.1 All areas shall be kept clean, neat and orderly at all times. Dirt and rubbish shall be kept off paved so areas during construction. Project shall be left safe,clean,and neat at the end of each working day. It shall be the contractor's responsibility to remove all sediment and debris from catch basins. 1.11 ADJUSTMENT OF LAYOUT do 1.11.1 Architect shall have the right to adjust the location of material during installation as appropriate to the job at no additional cost to the Owner. rr� PART 2 - PRODUCTS 2_1 MANUFACTURERS MI 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: 2.1.1.1 Available Products: Subject to compliances with requirements,products that may be incorporated into the Work include,but are not limited to,products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products wr that may be incorporated into the Work include,but are not limited to,manufacturers specified. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329250-2 MEADOW CREST PLAYGROUND SECTION 329250 PROJECT NO. 11.12.116 SOIL PREPARATION No 2_2 100% IMPORTED TOPSOIL gie 2.2.1 Topsoil shall be by Pacific Topsoil "Three-Way Mix"or approved equal. Material must be free of noxious weeds, deleterious materials and rocks or debris which will not pass through a'/4" screen. The con- stituents must be evenly distributed throughout the topsoil mix. Landscape Architect must approve '/2-gallon sample and source prior to delivery to site. PART 3 - EXECUTION 3_1 GENERAL 3.1.1 All products and materials noted herein or on drawings are to be installed per manufacturer's rec- ommendations and per each appropriate trade's highest standards. rr 3_2 PREPARATION 3.2.1 Inspect all planting areas for the conditions specified below, and other conditions, which would ad- - versely affect the landscaping installation. Notify the Landscape Architect if adverse conditions are discov- ered. Commencement of landscaping installation indicates acceptance of the surrounding conditions. Protect surrounding construction from damage caused by the work of this section. 3.2.1 Contaminants: Inspect planting areas for contaminants that may have been discarded during construc- tion activities, such as paint thinner,plaster and other contaminating materials. 3.2.2 Improper Drainage: Inspect for drainage conditions, which would adversely affect plant growth. 3.2.3 Subgrade: Inspect planting areas for condition and depth. 3.2.4 Landscape Contractor to submit a plan to the Landscape Architect clearly describing the method the Contractor will use to salvage, store and amend the existing topsoil. dig 3.3 SUBGRADES AND TOPSOIL DEPTHS 3.3.1 It is the responsibility of the General Contractor to leave all planting areas in a clean condition and to bring all grades to designated subgrades, except special areas as noted on drawings. Verify these condi- tions prior to onset of landscape construction and notify Landscape Architect of any discrepancies. es 3.3.2 All areas shall be finish subgraded before commencement of topsoil placement. Commencement of landscape construction shall represent acceptance of existing conditions and Landscape Contractor thereby rw. accepts responsibility for any additional steps, which may be necessary to achieve the proposed design at no additional cost to the Owner. 3.3.3 General Contractor shall provide clean subgrades as follows: ON 3.3.3.1 Shrub Planting Areas around building: Minimum depth shall be minus 14",to allow for 10"topsoil, 4"mulch topdressing. .r� BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329250-3 rir Nis MEADOW CREST PLAYGROUND SECTION 329250 PROJECT NO. 11.12.116 SOIL PREPARATION 3.3.4 Lawn Areas: Minimum shall be minus 6",to allow for 4"topsoil,and 2"sod(adjust per thickness of sod). 3.3.4.1 All areas shall be graded such that finish subgrade is flush with finish subgrade of all adjacent areas except as noted. All areas shall allow for topsoil and mulch added to individual planting pits as specified herein. All finish subgrades shall allow for reasonable settlement of soils. Subgrades will be approved only after review and acceptance of subgrade survey staking. is 3.4 SOIL PREPARATION 3.4.1 Scarify all compacted subgrades as noted to promote proper drainage for plant growth. Remove debris from areas. Float or drag subgrades to produce smooth, uniform surfaces. Distribute excess soil even- ly throughout planting areas. Remove any vegetation,debris,and unsatisfactory soil from all areas. All areas are to be prepared and topsoil placed as follows: 3.4.2 Shrub Planting Area with Topsoil: Scarify subgrade. Install half depth of topsoil. Work topsoil into the top 2"of subgrade. Add remainder of soil and rake to a smooth uniform finish. Compacted to 80% dry maximum density. 3.5 POSITIVE DRAINAGE 3.5.1 All planting areas are to be crowned in the center at'/2"per foot from edge(unless otherwise noted on Civil drawings.) All grades shall flow smoothly and produce positive drainage. ■r 3.6 FINISH CONDITIONS me 3.6.1 Finish grades of sod areas at contact points with paving shall be flush with the top of adjacent pav- ing or curb. Finish grade of planted areas (shrub and groundcover beds) at contact points with paving or curb shall be 1"below the top of adjacent paving or curb. All finish grades shall allow for future settlement of soil. 3_7 LAYOUT 3.7.1 Layout verification refers to staking location of all plantings areas. 3.7.2 No work shall commence on installation of materials until layout is verified and accepted by Archi- tect. Should Contractor choose to begin installation prior to approval, it shall be at his own risk. 3.7.3 Contractor shall notify Landscape Architect in writing immediately of any variances between draw- ma ings and actual site and await instructions before proceeding. 3.8 ADJUSTMENT OF LAYOUT Nil 3.8.1 Architect may require adjustment of the position in the field for best-finished appearance or in re- sponse to existing site conditions at any time during installation period. Adjustments shall be made at no ad- ditional cost. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329250-4 vinummini err MEADOW CREST PLAYGROUND SECTION 329250 PROJECT NO. 11.12.116 SOIL PREPARATION a 3.9 FINAL CLEAN UP 3.9.1 Prior to inspection for substantial completion,remove all deleterious material and debris from all areas, rake neatly all planting areas to an even fine grade and wash clean all hard surfaces. END OF SECTION 329250 a irr a r a a a �r BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329250-5 10 OM a a a S MI atr w a a a S If a MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT PART 1 - GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification sections, apply to this section. rrr 1_2 SUMMARY 1.2.1 Playground equipment work as shown on the drawings for play equipment, custom fabricated site elements and similar items. 1.3 RELATED SECTIONS 1.3.1 Division 32—Concrete Paving. 1.3.2 Division 32—Poured-in-Place Surfacing. 1.4 PERFORMANCE REQUIREMENTS AND QUALITY ASSURANCE 1.4.1 Meet requirements of ASTM F 1951, Standard Specification for Determination of Accessibility of Surface Systems Under and Around Playground Equipment. do 1.4.2 Meet accessibility requirements of Access Board, Final Report. 1.5 SUBMITTALS 1.5.1 Product data: Submit manufacturer's technical data and installation instructions for each item of equipment required. Provide statement of accessibility from manufacturer, including total number of play components as well as total number of accessible components. Provide both plan view and 3- dimensional views of equipment. 1.5.1 Samples: Submit paint and plastic color samples of play equipment for color selection and approval. Color chart is not acceptable. Colors shall be selected by Architect. rw 1.5.2 Operations and Maintenance: Provide tools,touch-up paint,maintenance recommendations, recommendations for graffiti removal and spare parts including nuts and bolts. 1.6 REFERENCES 1.6.1 Safety: 1.6.1.1 American Society for Testing and Materials (ASTM)designation F1487 98(or current issue) "Standard Consumer Safety Performance Specification for Playground Equipment for Public Use." 1.6.1.2 U.S. Consumer Product Safety Commission (CPSC) Handbook for Public Playground Safety (Publication No. 325) (based on ASTM F 1487). +rr 1.6.1.3 CPSC Playground Surfacing Materials(Publication No. 325). BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550- 1 MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT me PART 2—PRODUCTS 2_1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: 2.1.1.1 Available Products: Subject to compliance with requirements,products that may be incorporated into the Word include,but are not limited to, products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include,but are not limited to, manufacturers specified. to 2_2 MATERIALS 2.2.1 All requests for substitutions must be submitted in writing with supporting documentation by or through the Contractor to the Architect for initial review 7 to 10 days prior to bid,before being submitted to the Owner for evaluation and final approval. 2.2.1.1 Each apparatus area must include stickers mounted on equipment indicating age appropriateness of play apparatus. 2.2.2 New Equipment Base Bid Wavy Walk Area 2.2.2.1 (5)Tuned Drums by Freenotes Harmony Park. 2.2.2.2 (7)Contrabass Chimes with(2) Mallets by Freenotes Harmony Park. 2.2.2.3 (1) Glass Imbarimba by Freenotes Harmony Park. oto Younger Children Area 2.2.2.4 (1)Custom Ladybug Climber by Cre8Play. rig 2.2.2.5 (1) Spinner Bowl by Kompan, Inc. 2.2.2.6 (3) Ladybug Steppers by Cre8Play. Older Children Area 2.2.2.7 Biggo Solo Swing by Dynamo. Climbing Area 2.2.2.8 (1) Sway Fun with 12' Wheelchair Access Ramp (#177140)by Landscape Structures. 2.2.2.9 (1) Super Nova by Kompan, Inc. rr 2.2.3 New Equipment Alternate 1A BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550-2 irr ari MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT Wavy Walk Area AIN 2.2.3.1 (1) Custom School Zone Sign with post by Landscape Structures. (Design shall match Playworld Systems School Zone Sign#PD3410). 2.2.3.2 (1) Rain Sound Wheel Panel (#177719)by Landscape Structures. 2.2.3.3 (1) Color Splash Panel (#177713)by Landscape Structures. ar 2.2.3.4 (1) Trail Tracker Reach Panel (#139264)by Landscape Structures. 2.2.3.5 (1)Custom Gas Station by Landscape Structures. (Design shall match Playworld Systems Gas Station#XX0477). 2.2.3.6 (1) Kaleidospin Panel (#173571)by Landscape Structures. 2.2.3.7 (1)Custom Drive Thru Panel by Landscape Structures. (Design shall match Playworld Systems go Drive Thru#PD3360). 2.2.3.8 (1)Navigator Reach Panel (#139266)by Landscape Structures. 2.2.3.9 (1)Custom Stop Sign with post by Landscape Structures. (Design shall match Playworld Systems Stop Sign #PD3370). Younger Children Area 2.2.3.10 Weevos Play Structures(#64170)with three arches by Landscape Structures with the following components: Swiggly Stix(#173575), Wee Planet Climber(#173573), Cozy Coaster Slide with ASTM Handrail (#164174), See Crawl (#173574), Bongo/Xylofun Panel (#173583), Optigear Panel (#173578), Boppity Bridge(#164178). Refer to Drawings for layout information. 2.2.3.11 (2)Talk Tube(#113931)by Landscape Structures. 2.2.3.12 (1) Seesaw 2-seats(#148636)with back support(#148706)by Landscape Structures. 2.2.3.13 (1) Playhouse(#2382)by Landscape Structures. MI 2.2.3.14 (1) Log Balance Beam (#173596)by Landscape Structures. 2.2.3.15 (1)2-5 Year Olds Area Sign by Landscape Structures Older Children Play Area 2.2.3.16 (1)Custom Play structure by Landscape Structures including the following components: 72" Air Spyroslide (#122033),Vertical Ascent(#145624), Mantaray Climber with permalene handholds 126" model (#185084), Firepole(#148426),0-Zone 3 Ring Climber with Permalene Handholds(#184805), Accessible Stationary Cycler(#153165), Cozy Climber(#123293), Transfer Station(#152911), 111111 Corkscrew Climber(#148432), Sunbeam Climber(#179594), Blender(#172586), Gear Panel Accessible at Grade (#117146), Marble Panel (#173567), Ball Maze Panel accessible at grade(#115236), (7) Pine BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550-3 orn MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT Tree Accent Topper(#178470) Rain Sound Wheel Panel (#177718)and Navigator Reach Panel (#127439)independent panels at grade. Refer to Drawings for layout information. 2.2.3.17 (1) Omnispinner(#173591)by Landscape Structures. 2.2.3.18 (1) 8' Height Arch Swing with(2) Molded Bucket seats with harnesses by Landscape Structures. 2.2.3.19 (1) 5-12 Year Olds Area Sign by Landscape Structures. Climbing Wall Area 2.2.3.20 (1) Double Bobble Spring Rider(#164075)by Landscape Structures. 2.2.3.21 (1)2-12 Year Olds Sign by Landscape Structures. 2.2.4 New Equipment Alternate 1B Wavy Walk Area 2.2.4.1 (1) School Zone Sign with post by Playworld Systems. 2.2.4.2 (1) Make-A-Face, Color/Shape & ADA Bugs panels by Playworld Systems. 2.2.4.3 (1) Shifting Sands, Store Front, and ADA Driver Panels by Playworld Systems. 2.2.4.4 (1)Gas Station(#XX0477)by Playworld Systems. 2.2.4.5 (1)ADA Solar Panel with Babble-On to Younger Children's Area by Playworld Systems. 2.2.4.6 (1)Animal Locator Panel by Playworld Systems. 2.2.4.7 (1) Stop Sign with post by Playworld Systems. Younger Children Area 2.2.4.8 (1) Babble-On to Wavy Walk with Medium Lollitop Roof by Playworld Systems. 2.2.4.9 (1) Butterfly Adventure Tube by Playworld Systems. 2.2.4.10 (1)Custom Play House with Tree House Doorway, Bell Panel, (2)x 12" Buttons, Playseat, Single Post Seat, Store Front and Roof by Playworld Systems. 2.2.4.11 Custom Challenger Play Structure including the following components: Slither Slide, Slide& Learn Panel,Nature Hunt Panel, Solar Climber, Transfer Station,Tree House Barrier, 7"& 8" Bells, Wide Glide Slide, Silo Climber,Twist& Shout Slide, (3) Small Lollitop, (1) Medium Lollitop, (2) Large Lollitop by Playworld Systems. Refer to Drawings for layout information. 2.2.4.12 (1) Bee Spring Rider without sound by Playworld Systems. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE:329550-4 MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT 2.2.4.13 (1) Spinning Cozy Cocoon by Playworld Systems. 2.2.4.14 (1)2-5 Year Olds Area Sign by Playworld Systems. are Older Children Play Area d"' 2.2.4.15 (1) Custom Challenger Play structure including the following components: Spiral Slide, ADA Solar Panel,Nature Slither Slide, Tree House Climber, Storefront Panel, 12" Rise Crazy Bones Bridge, 8" & 10"Bells, The Wall Net Climber, Silo Climber, Twist& Shout Slide, Stairs, Wildwood Climber, Deck- 11111 to-Deck Climber, Transfer Station, 36" Rise Accessible Stairs, Twisted Climber, Babble-On, Spin Racer Panel, Treehouse Doorway, Assorted Small, Medium and Large Lollitops by Playworld Systems. Refer to Drawings for layout information. .rr 2.2.4.16 (1) Babble-On to Composite Play Structure with Large Lollitop by Playworld Systems. 2.2.4.17 (1) 8' Height swings with (2) Molded Bucket Seats with harnesses by Playworld Systems. 2.2.4.18 (1) Origins Rock Log by Playworld Systems. a' 2.2.4.19 (1) Boulder Bench by Playworld Systems. 2.2.4.20 (1) 5-12 Year Olds Area Sign by Playworld Systems. ■ Climbing Wall Area 2.2.4.21 (1) Button Trail (2) 12" Buttons, (2) 18" Buttons, (1) 24" Button by Playworld Systems. 2.2.4.22 (1)2-12 Year Olds Area Sign by Playworld Systems. rw 2.2.5 New Equipment Alternate 2A Older Children Area 2.2.5.1 (1)Adventurescape Design#1 (Direct Bury)with Outrigger, (2) Log Benches(#173595), (1) Stepper Natural Stones(#160419), and(2) Log Steppers 8"(#173907)by Landscape Structures. mis 2.2.6 New Equipment Alternate 2B Older Children Play Area 2.2.6.1 (1)Origins Castle Boulder, Tower Boulder and Rope Bridge by Playworld Systems. �r. 2.2.7 New Equipment Alternate 5 2.2.7.1 Caterpillar Climber by Integrated Design Solutions, Ian Glas at 970-641-1747. .r. BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550-5 No MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT 2.2.8 New Equipment Alternate 6 2.2.8.1 Integrated Design Solutions Climbing Wall with (1) Double Swirl Poly Slide with transfer station and deck extensions and(1) 30" El Tunnel Slide by Landscape Structures . Contact Ian Glas at 970-641-1747. 2_2 CONCRETE 2.2.1 Refer to sections 321313 for concrete specifications which are applicable to concrete required in this section. PART 3 - EXECUTION ++ 3.1 INSTALLER 3.1.1 New play apparatus shall be installed only by person trained and certified by the play apparatus manufacturer. 3_2 INSPECTION 3.2.1 Verify gradients and elevations of base. Verify compaction for all footings and subgrades. Beginning of installation means acceptance of existing conditions. 3.3 PREPARATION 3.3.1 Before geotextile fabric has been installed, locate each item of equipment accurately as indicated. Obtain field verification of location for each item from Landscape Architect before proceeding. as 3.3.2 Excavate for footings for play structures, and concrete wall. Moisten base,compact to 90% of Standard Proctor Density. 3.4 FOOTINGS 3.4.1 Pour footings to the dimensions indicated by the manufacturer using concrete specified under concrete paving. Set any sleeves required to pouring. 3.4.2 All footings should be level and even with no bumps, dips, or adverse slopes to affect the placement of the site improvements. oat 3_5 GENERAL 3.5.1 Playground items: Set item in position and temporarily brace. Fill voids at anchorages with concrete as specified in Section 321313. Remove temporary bracing after concrete has set for 48 hours minimum. Place geotextile fabric and secure to each post with manufacturer's recommended adhesive. am Set units plumb, level, and free of warp or racking. Secure in position using concrete anchors and devices recommended by the manufacturer. ml 3.6 FIELD QUALITY CONTROL ma BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550-6 rit dig MEADOW CREST PLAYGROUND SECTION 329550 PROJECT NO. 11.12.116 PLAYGROUND EQUIPMENT air 3.6.1 All items must be protected from staining, cracking, chipping, vandalism, and other drainage during progress of the work and left in a first class condition upon completion. END OF SECTION 329550 Alli am rr ma Nat rr� dal .rr BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329550-7 rr N N ✓ N N N N N N N N r N Id N N N +err MEADOW CREST PLAYGROUND SECTION 329551 PROJECT NO. 11.12.116 CATERPILLAR PLAYGROUND SCULPTURE liw PART 1 -GENERAL .�r 1.1 WORK INCLUDED 1.1.1 Design, engineer, fabricate, and install custom outdoor, playground climbing sculpture system to attach to a structural foundation, in accordance with the concept model and all requirements specified herein and as required to complete the Work. The Climbing Sculpture will be located at Meadow Crest Playground in Renton, WA. The Caterpillar Playground sculpture is intended to be a creative play feature for children (over 3 yrs.) The climbing structure will attach to a structural concrete foundation. 1.2 RELATED SECTIONS AND DOCUMENTS 1.2.1 Drawings and general provisions of the Construction Contract 11111 1.2.2 DESIGN REQUIREMENTS: Comply with the Climbing Wall Association(CWA)standards and the International Building Code(IBC). Safety surfacing and all elements of sculpture to meet or exceed ASTM F 1487, ASTM F 1292 and CPSC Guidelines for Public Playground Safety. 1.2.3 Structural elements of the climbing sculpture must be certified by a State of Washington licensed structural engineer. 1.3 QUALITY ASSURANCE 1.3.1 Manufacturer's Qualifications:Not less than seven years experience in the manufacture of custom .■ playground climbing sculptures and wall systems of the type proposed for the Work. Minimum of 10 references. 1.3.2 Installer's Qualifications:Not less than five years experience in the assembly and installation of custom playground climbing sculptures and wall systems of the type proposed for the work,or be supervised in the field by a representative of the manufacturer. err 1.3.3 Drawings: complete shop drawings, including installation details, dimensions, interface or attachment to adjacent work,fastening and anchoring methods of all system components, detail and location of joints, and notation or identification of finishes for work specified herein. 1.3.4 SAMPLES: Submit one sample: Minimum 12"X 12" sample of playground climbing sculpture/ wall system, including colors as selected by Landscape Architect. 1.3.5 The Contractor shall notify Landscape Architect of any discrepancies of site dimensions, obstructions, etc. that are not shown on the drawings and that might not have been known during preparation of drawings. If such notification is not made, Contractor shall assume all expenses and responsibility for any revisions necessary. Work called for on the drawings by notes or on details shall be furnished and installed whether or not specifically mentioned in the specifications. dill 1.4 SUBMITTALS 1.4.1 Drawings: Complete design drawings illustrating concept and structural design, sealed by a State of Washington registered structural engineer. Complete shop drawings, including installation details, dimensions, interface or attachment to adjacent work, fastening and anchoring methods of all system BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329551 - 1 .�r MEADOW CREST PLAYGROUND SECTION 329551 PROJECT NO. 11.12.116 CATERPILLAR PLAYGROUND SCULPTURE MIS components, detail and location of joints, and notation or identification of finishes for work specified herein. 1.4.2 Quality Control Submittals: Any deviations from the proposed climbing sculpture design must be approved by the Landscape Architect prior to construction. Submit three(3)copies of any design deviations before commencing any work. 1.5 GUARANTEE - 1.5.1 Guarantee: During the period of one full year after the final payment of work,make all necessary repairs or replacements due to defective workmanship or materials within thirty (30)calendar days of receipt of notice of malfunction by the Owner. PART 2-PRODUCTS 2.1 MANUFACTURERS 2.1.1 In other Part 2 articles where titles below introduce lists,the following requirements apply to product selection: 2.1.1.1 Available Products: Subject to compliances with requirements,products that may be incorporated into the Work include, but are not limited to,products specified. 2.1.1.2 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated into the Work include,but are not limited to, manufacturers specified. 2.2 CATERPILLAR CLIMBER 2.2.1 Landscape drawings: Detailed Caterpillar Climber as shown on drawings. we 2.2.1.1 Fabricator/Manufacturer: Integrated Design Solutions or approved; Ian Glas;phone 970-641- 1747. eii 2.2.1.2 Or approved substitution prior to Bid. END OF SECTION 329551 ilk BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329551 -2 me. MEADOW CREST PLAYGROUND SECTION 329552 PROJECT NO. 11.12.116 CLIMBING WALL PLAYGROUND SCULPTURE PART 1 -GENERAL 1.1 WORK INCLUDED 1.1.1 Design,engineer,fabricate, and install custom outdoor, playground climbing sculpture system to attach to a structural foundation, in accordance with the concept model and all requirements specified herein and as required to complete the Work. The Climbing Sculpture will be located at Meadow Crest Playground in Renton, WA. The Climbing Wall Playground sculpture is intended to be a creative play feature for children (over 3 yrs.)The climbing sculpture will attach to a structural concrete retaining wall (installed by others). 1.2 RELATED SECTIONS AND DOCUMENTS 1.2.1 Drawings and general provisions of the Construction Contract 1.2.2 DESIGN REQUIREMENTS: Comply with the Climbing Wall Association(CWA) standards and the International Building Code(IBC). Safety surfacing and all elements of sculpture to meet or exceed ASTM F 1487,ASTM F 1292 and CPSC Guidelines for Public Playground Safety. 1.2.3 Structural elements of the climbing sculpture must be certified by a State of Washington licensed structural engineer. r 1.3 QUALITY ASSURANCE 1.3.1 Manufacturer's Qualifications: Not less than seven years experience in the manufacture of custom .r playground climbing sculptures and wall systems of the type proposed for the Work. Minimum of 10 references. 1.3.2 Installer's Qualifications:Not less than five years experience in the assembly and installation of custom playground climbing sculptures and wall systems of the type proposed for the work, or be supervised in the field by a representative of the manufacturer. 1.3.3 Drawings: complete shop drawings, including installation details, dimensions, interface or attachment to adjacent work,fastening and anchoring methods of all system components, detail and location of joints, and notation or identification of finishes for work specified herein. 1.3.4 SAMPLES: Submit one sample: Minimum 12"X 12" sample of playground climbing sculpture/ wall system, including colors as selected by Landscape Architect. 1.3.5 The Contractor shall notify Landscape Architect of any discrepancies of site dimensions, obstructions, etc. that are not shown on the drawings and that might not have been known during preparation rr, of drawings. If such notification is not made, Contractor shall assume all expenses and responsibility for any revisions necessary. Work called for on the drawings by notes or on details shall be furnished and installed whether or not specifically mentioned in the specifications. 1.4 SUBMITTALS 1.4.1 Drawings: Complete design drawings illustrating concept and structural design, sealed by a State of Washington registered structural engineer. Complete shop drawings, including installation details, dimensions,interface or attachment to adjacent work, fastening and anchoring methods of all system BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329552- r. MEADOW CREST PLAYGROUND SECTION 329552 PROJECT NO. 11.12.116 CLIMBING WALL PLAYGROUND SCULPTURE so components, detail and location of joints, and notation or identification of finishes for work specified herein. 1.4.2 Quality Control Submittals: Any deviations from the proposed climbing sculpture design must be approved by the Landscape Architect prior to construction. Submit three (3) copies of any design deviations before commencing any work. 1.5 GUARANTEE • 1.5.1 Guarantee: During the period of one full year after the final payment of work,make all necessary repairs or replacements due to defective workmanship or materials within thirty (30)calendar days of receipt of notice of malfunction by the Owner. PART 2 -PRODUCTS 2.1 MANUFACTURERS 2.1.1 Available Manufacturers: Subject to compliance with requirements,manufacturers offering products that may be incorporated in the Work include,but are not limited to, manufacturers specified. 2.2 CLIMBING WALL 2.2.1 Landscape Drawings: Detailed climbing wall with attached Play Equipment as shown on drawings. rit 2.2.1.1 Fabricator/Manufacturer: Integrated Design Solutions or Approved; Ian Glas; phone: 970-641- 1747. 2.2.1.2 Or approved substitution prior to bid. ors 2.3 PLAY EQUIPMENT ATTACHED TO CLIMBING WALL 2.3.1 (1) Double Swirl Poly Slide with transfer station and deck extensions and(1) 30" El Tunnel Slide by Landscape Structures. END OF SECTION 329552 di Of BLRB ARCHITECTS 4/2/13 DESIGN CONCEPTS BID SET PAGE: 329552-2 MEADOW CREST PLAYGROUND SECTION 331 100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING PART 1 - GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,apply to this Section. arr 1.1.2 These specification supplement construction standards. In case of conflict, the City of Renton Standard Specifications shall govern. 1.1.3 Division 31 Section 312000`Barth Moving"for trenching,bedding, and backfilling. 1.1.4 Division 31 Section 312513 "Erosion Control"for temporary erosion control measures. 1_2 SUMMARY 1.2.1 This Section includes water-distribution piping and related components outside the building for water service and fire-service mains. 1.2.2 Utility-furnished products include water meters that will be furnished to the site, ready for contractor installation. Contractor shall provide and install meter boxes. 1.3 DEFINITIONS 1.3.1 PE: Polyethylene plastic. 1.3.2 PVC: Polyvinyl chloride plastic. 1.3.3 DIP: Ductile iron pipe. foia 1.4 REFERENCE STANDARDS 1.4.1 Washington State Department of Transportation (WSDOT) Standard Specifications. ,rw 1.4.2 City of Renton Public Works Department Plans and Standard Specifications. "' 1.5 SUBMITTALS 1.5.1 Product Data: For each type of product indicated. rr 1.5.2 Certification ww 1.5.2.1 Provide a letter, signed by the supplier and reviewed and also signed by an officer of the general contractor's company, certifying that the following products to be incorporated into the work meet the requirements specified. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100- 1 MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING ell 1.5.2.2 Products 1.5.2.2.1 Pipe and Fittings 1.5.2.2.2 Restrained Joint Fittings 1.5.2.2.3 Valves and Valve Boxes 1.5.2.2.4 Fire Department Connection 1.5.2.2.5 Fire Hydrants 1.5.3 Record Drawings: At Project closeout of installed water-service piping according to Division 01 Section 017700,"Closeout Procedures." 1.5.4 Purging and Disinfecting Reports: As specified in"Cleaning"Article in Part 3. is 1.5.5 Shop Drawings: Detail precast concrete vault assemblies and indicate dimensions, method of field assembly,and components. mei 1.5.6 Coordination Drawings: For piping and specialties including relation to other services in same area, drawn to scale. Show piping and specialty sizes and valves, meter and specialty locations, and elevations. rri 1.5.7 Field quality-control test reports. 1.5.8 Operation and Maintenance Data: For water valves and specialties to include in emergency, operation, and maintenance manuals. 1.6 QUALITY ASSURANCE 1.6.1 Regulatory Requirements: 1.6.1.1 Comply with requirements of City of Renton Public Works Department. 1.6.1.2 Comply with standards of authorities having jurisdiction for potable-water-service piping, 5 including materials, installation,testing, and disinfection. 1.6.1.3 Comply with standards of authorities having jurisdiction for fire-suppression water-service rei piping, including materials,hose threads, installation,and testing. 1.6.2 Piping materials shall bear label, stamp, or other markings of specified testing agency. 1.6.3 Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. 1.6.4 NFPA Compliance: Comply with NFPA 24 for materials, installations, tests, flushing, and valve and hydrant supervision for fire-service-main piping for fire suppression. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-2 r AIN MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING Ari 1_7 DELIVERY,STORAGE,AND HANDLING 1.7.1 Preparation for Transport: Prepare valves,including fire hydrants,according to the following: 1.7.1.1 Ensure that valves are dry and internally protected against rust and corrosion. via 1.7.1.2 Protect valves against damage to threaded ends and flange faces. 1.7.1.3 Set valves in best position for handling. Set valves closed to prevent rattling. err 1.7.2 During Storage: Use precautions for valves, including fire hydrants,according to the following: 9rr 1.7.2.1 Do not remove end protectors unless necessary for inspection;then reinstall for storage. 1.7.2.2 Protect from weather. Store indoors and maintain temperature higher than ambient dew- point temperature. Support off the ground or pavement in watertight enclosures when outdoor storage °" is necessary. 1.7.3 Handling: Use sling to handle valves and fire hydrants if size requires handling by crane or lift. rr Rig valves to avoid damage to exposed parts. Do not use handwheels or stems as lifting or rigging points. 1.7.4 Deliver piping with factory-applied end caps. Maintain end caps through shipping, storage, and am handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture. 1.7.5 Protect stored piping from moisture and dirt. Elevate above grade. Do not exceed structural capacity of floor when storing inside. mu 1.7.6 Protect flanges, fittings,and specialties from moisture and dirt. rr 1.7.7 Store plastic piping protected from direct sunlight. Support to prevent sagging and bending. 1_8 PROJECT CONDITIONS 1.8.1 Interruption of Existing Water-Distribution Service: Do not interrupt service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary water-distribution service according to requirements indicated: 1.8.1.1 Notify Owner no fewer than two days in advance of proposed interruption of service. arr 1.8.1.2 Do not proceed with interruption of water-distribution service without Owner's written permission. 1.8.1.3 Coordinate with City of Renton for any interruption of existing water service. 1.9 COORDINATION 1.9.1 Coordinate connection to water main with the City of Renton. 1.9.2 City of Renton crews will furnish and install domestic service and meter, and irrigation service and meter. wr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331 100-3 ,rr MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 1.9.3 The site Contractor's work begins at the downstream end of the meters and continues into the building. nor PART 2 - PRODUCTS 2.1 DUCTILE-IRON PIPE AND FITTINGS 2.1.1 Mechanical-Joint, Ductile-Iron Pipe: AWWA C151, with mechanical joint bell and plain spigot frA end unless grooved or flanged ends are indicated. Conform to WSDOT Specification 9-30.1(1). 2.1.1.1 Mechanical-Joint, Ductile-Iron Fittings: AWWA C1 10, ductile- or gray-iron standard tie pattern or AWWA C153,ductile-iron compact pattern. 2.1.1.2 Glands, Gaskets, and Bolts: AWWA C111, ductile- or gray-iron glands, rubber gaskets, sii and steel bolts. 2.1.1.3 All fittings shall have cement mortar lining conforming to AWWA C104 or epoxy lining per AWWA C153. 2.1.2 Push-on-Joint, Ductile-Iron Pipe: AWWA C151, with push-on-joint bell and plain spigot end unless grooved or flanged ends are indicated. Conform to WSDOT Specification 9-30.1(1). 2.1.2.1 Push-on-Joint, Ductile-Iron Fittings: AWWA Cl 10, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern. di 2.1.2.2 Gaskets: AWWA C111,rubber. 2.1.2.3 All fittings shall have cement mortar lining conforming to AWWA C104 or epoxy lining per AWWA C153. 2.1.3 All Ductile-Iron Pipe and Fittings shall be wrapped with 8-Mil blank, tube-type polyethylene plastic pipe per ANWA C105 Standard. 2.1.4 Flanges: ASME 16.1, Class 125, cast iron. imi 2.1.5 Restrained Joints: Mega-Lugs or approved equal. 2.1.6 Comply with City of Renton requirements. 2_2 GATE VALVES 2.2.1.1 Nonrising-Stem, Resilient-Seated Gate Valves: 2.2.1.1.1 Description: Gray- or ductile-iron body and bonnet; with bronze or gray- or ductile- iron gate,resilient seats,bronze stem, and stem nut. 2.2.1.1.1.1 Standard: AWWA C509 or C515-99. BLRB ARCHITECTS 04/02/13 AHBL,INC. BID SET PAGE: 331 100-4 1i MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 2.2.1.1.1.2 Minimum Pressure Rating: 200 psig. 2.2.1.1.1.3 End Connections: As shown on drawings. Mechanical joint and push on conforming to AWWA C111, A21.11. Flanged joints conforming to AWWA C110, A21.10. 2.2.1.1.1.4 Interior Coating: Fusion bonded epoxy complying with AWWA C550. 2.2.1.1.1.5 Conform to City of Renton requirements. ale 2.2.1.1.1.6 Gate valves shall be Clow List 14, Mueller Company No. A-2380 or M&H. 2.2.1.2 OS&Y, Rising-Stem, Resilient-Seated Gate Valves: 2.2.1.2.1 Description: Cast- or ductile-iron body and bonnet, with bronze or gray- or ductile- iron gate,resilient seats, and bronze stem. • ' 2.2.1.2.1.1 Standard: AWWA C509. 2.2.1.2.1.2 Minimum Pressure Rating: 200 psig. MIN 2.2.1.2.1.3 End Connections: Flanged. mom 2.3 GATE VALVE ACCESSORIES AND SPECIALTIES 2.3.1 Valve Boxes: Cast-iron valve boxes, Series 940B as manufactured by Olympic Foundry. Include top section, adjustable extension of length required for depth of burial of valve, plug with lettering "WATER," and bottom section with base that fits over valve and with a barrel approximately 5 inches in diameter. lie 2.3.1.1 Conform to City of Renton Public Works Department Standard Plan. 2_4 WATER METERS 2.4.1 Water meters and vaults will be furnished by City of Renton. Owner shall pay City of Renton fee ✓r and service charges. rig 2.5 FIRE HYDRANTS 2.5.1 Dry-Barrel Fire Hydrants: Conform to City of Renton Public Works Department Standard Plan. dill 2_6 FIRE DEPARTMENT CONNECTIONS go 2.6.1 Fire Department Connections: Conform to City of Renton requirements and detail plans. u m wou BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-5 Ira MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING IN 2.7 ALARM DEVICES 2.7.1 Alarm Devices, General: UL 753 and FMG approved, of types and sizes to mate and match piping and equipment. 2.7.2 Supervisory Switches: Single pole, double throw; designed to signal valve in other than fully open position. 2.7.3 Pressure Switches: Single pole, double throw; designed to signal increase in pressure. PART 3 - EXECUTION 3_1 EARTHWORK 3.1.1 Refer to Division 31 Section 312000 "Earth Moving" for excavating, trenching, bedding, and ai backfilling. 3.2 PIPING APPLICATIONS 3.2.1 General Locations and Arrangements: Drawings indicate general location and arrangement of piping systems. Indicated locations and arrangements were used to size pipe and calculate friction loss, expansion, and other design considerations. Install piping as indicated, unless deviations to layout are approved on Coordination Drawings. Ii 3.2.2 Install piping at indicated location and elevation. Ensure that minimum vertical clearance at 6 inches is provided where crossing other utilities. a 3.2.3 Install components with pressure rating equal to or greater than system test pressure. 3.2.4 Install piping free of sags and location and elevation. Ensure that 6-inch vertical clearance is provided where crossing other utilities. 3.2.5 Locate groups of pipes parallel to each other, spaced to permit valve servicing. ea 3.2.6 Install fittings for changes in direction and branch connections. 3.2.7 Piping Connections: Unless otherwise indicated,make piping connections as specified below: rill 3.2.7.1 Install flanges, in piping 2-1/2-inch NPS and larger, adjacent to flanged valves and at final connection to each piece of equipment with flanged pipe connection. 3.2.8 General: Use pipe, fittings, and joining methods for piping systems according to the following applications. 3.2.9 Transition couplings and special fittings with pressure ratings at least equal to piping pressure rating may be used, unless otherwise indicated. 3.2.10 Do not use unions for underground piping. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-6 MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 3.2.11 Flanges, unions, grooved-end-pipe couplings, and special fittings may be used, instead of joints indicated, on piping in vaults. 3.2.12 Underground water-service piping NPS 3/4 to NPS 3 shall be any of the following: 3.2.12.1 PE, ASTM pipe. dill 3.2.13 Underground water-service piping NPS 4 to NPS 8 shall be the following: tas 3.2.13.1 Ductile-iron, mechanical joint pipe; ductile-iron, mechanical joint fittings; and mechanical joints. 3.2.14 Underground Fire-Service-Main Piping NPS 4 to NPS 12 shall be the following: ire 3.2.14.1 Ductile-iron, mechanical joint pipe; ductile-iron, mechanical joint fittings; and mechanical joints. errr 3_3 VALVE APPLICATIONS 3.3.1 General Application: Use mechanical-joint-end valves for NPS 3 and larger underground installation. Use threaded-or flanged-end valves for installation in vaults. Use UL/FMG, nonrising-stem gate valves for installation with indicator posts. Use corporation valves and curb valves with ends compatible with piping, for NPS 2 and smaller installation. 3.3.2 Drawings indicate valve types to be used. srr 3_4 PIPING INSTALLATION dill 3.4.1 Water-Main Connection: Arrange with City of Renton and provide connection to existing main as indicated. 3.4.2 Comply with NFPA 24 for fire-service-main piping materials and installation. 3.4.3 Install ductile-iron,water-service piping according to AWWA C600 and AWWA M41. 3.4.4 Install PE pipe according to ASTM D 2774 and ASTM F 645. 3.4.5 Bury piping with depth of cover over top at least 36 inches for pipe diameter of 10-inch or less and 48 inches for pipe diameter of 12-inch or larger. 3.4.6 Extend water-service piping and connect to water-supply source and building-water-piping systems at outside face of building wall in locations and pipe sizes indicated. dill 3.4.6.1 Terminate water-service piping at 5 feet from building wall until building-water-piping systems are installed. Terminate piping with caps, plugs, or flanges as required for piping material. Make connections to building-water-piping systems when those systems are installed. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-7 rill MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 3.4.7 Install underground piping with restrained joints at horizontal and vertical changes in direction. Use restrained joint piping,thrust blocks, anchors,tie-rods and clamps, and other supports. 3.4.8 See Division 22 Section 224000 "Plumbing Fixtures" for potable-water piping inside the building. eft 3_5 JOINT CONSTRUCTION 3.5.1 Make pipe joints according to the following: 3.5.1.1 Ductile-Iron Piping, Gasketed Joints for Water-Service Piping: AWWA C600 and AWWA M41. ire 3.5.1.2 Ductile-Iron Piping, Gasketed Joints for Fire-Service-Main Piping: UL 194. 3.5.1.3 PE Piping Insert-Fitting Joints: Use plastic insert fittings and fasteners according to fitting manufacturer's written instructions. 3.5.1.4 Dissimilar Materials Piping Joints: Use adapters compatible with both piping materials, with OD, and with system working pressure. rr 3_6 ANCHORAGE INSTALLATION 3.6.1 Anchorage, General: Install water-distribution piping with restrained joints. Anchorages and restrained joint types that may be used include the following: 3.6.1.1 Concrete thrust blocks. mmi 3.6.1.2 Locking mechanical joints. 3.6.1.3 Set-screw mechanical retainer glands. mei 3.6.1.4 Bolted flanged joints. 3.6.1.5 Pipe clamps and tie rods. 3.6.2 Install anchorages for tees, plugs and caps, bends, crosses, valves, and hydrant branches. Include anchorages for the following piping systems: sta 3.6.2.1 Gasketed-Joint, Ductile-Iron, Water-Service Piping: According to AWWA C600. 3.6.2.2 Fire-Service-Main Piping: According to NFPA 24. - 3.6.3 Apply full coat of asphalt or other acceptable corrosion-resistant material to surfaces of installed ferrous anchorage devices. r�r BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-8 MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING rr 3.7 VALVE INSTALLATION 3.7.1 AWWA Gate Valves: Comply with AWWA C600. Install each underground valve with stem pointing up and with valve box. 3.7.2 UL/FMG, Gate Valves: Comply with NFPA 24. Install each underground valve and valves in vaults with stem pointing up and with vertical cast-iron indicator post. 3.7.3 Corporation Valves and Curb Valves: Install each underground curb valve with head pointed up am and with service box. 3.7.4 Provide concrete collar at valve box. 3.8 FIRE DEPARTMENT CONNECTION INSTALLATION 3.8.1 Install ball drip valves at each check valve for fire department connection to mains. err 3_9 ALARM DEVICE INSTALLATION 3.9.1 General: Comply with NFPA 24 for devices and methods of valve supervision. Underground valves with valve box do not require supervision. min 3.9.2 Supervisory Switches: Supervise valves in open position. r" 3.9.2.1 Valves: Grind away portion of exposed valve stem. Bolt switch, with plunger in stem depression,to OS&Y gate-valve yoke. 3.9.2.2 Indicator Posts: Drill and thread hole in upper-barrel section at target plate. Install switch, with toggle against target plate,on barrel of indicator post. 3.9.3 Locking and Sealing: Secure unsupervised valves as follows: 11111 3.9.3.1 Valves: Install chain and padlock on open OS&Y gate valve. 3.9.3.2 Post Indicators: Install padlock on wrench on indicator post. 3.9.4 Pressure Switches: Drill and thread hole in exposed barrel of fire hydrant. Install switch. rr 3.9.5 Water-Flow Indicators: Install in water-service piping in vault. Select indicator with saddle and vane matching pipe size. Drill hole in pipe,insert vane,and bolt saddle to pipe. ,rr 3.9.6 Connect alarm devices to building fire alarm system. 3.10 CONNECTIONS 3.10.1 Piping installation requirements are specified in other Division 22 Sections. Drawings indicate ant, general arrangement of piping,fittings, and specialties. 3.10.2 Connect water-distribution piping to existing water main as indicated on drawings. .rr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100-9 do a MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 3.10.3 Connect water-distribution piping to interior domestic water piping. 3.11 FIELD QUALITY CONTROL 3.11.1 Piping Tests: Conduct piping tests before joints are covered and after concrete thrust blocks have hardened sufficiently. Fill pipeline 24 hours before testing and apply test pressure to stabilize system. a Use only potable water. 3.11.2 Hydrostatic Tests: Test at not less than one-and-one-half times working pressure for two hours. 3.11.2.1 Increase pressure in 50-psig increments and inspect each joint between increments. Hold at test pressure for 1 hour; decrease to 0 psig. Slowly increase again to test pressure and hold for 1 more hour. Maximum allowable leakage is 2 quarts per hour per 100 joints. Remake leaking joints with new materials and repeat test until leakage is within allowed limits. 3.11.3 Prepare reports of testing activities. 3.11.4 Conform to City of Renton requirements. a 3.12 IDENTIFICATION 3.12.1 Install continuous underground warning tape during backfilling of trench for underground water- a distribution piping. Locate 6 to 8 inches below finished grade, directly over piping. Underground warning tapes are specified in Division 31 Section 312000 "Earth Moving." ■r 3.13 CLEANING a 3.13.1 Clean and disinfect water-distribution piping as follows: 3.13.1.1 Purge new water-distribution piping systems and parts of existing systems that have been altered, extended,or repaired before use. 3.13.1.2 Use purging and disinfecting procedure prescribed by authorities having jurisdiction or, if method is not prescribed by authorities having jurisdiction, use procedure described in AWWA C651 a or do as follows: 3.13.1.2.1 Fill system or part of system with water/chlorine solution containing at least 50 ppm of a chlorine; isolate and allow to stand for 24 hours. 3.13.1.2.2 Drain system or part of system of previous solution and refill with water/chlorine solution containing at least 200 ppm of chlorine; isolate and allow to stand for 3 hours. 3.13.1.2.3 After standing time, flush system with clean,potable water until no chlorine remains in water coming from system. a 3.13.1.2.4 Submit water samples in sterile bottles to Department of Health approved lab. Repeat procedure if biological examination shows evidence of contamination. BLRB ARCHITECTS 04/02/13 ill AHBL, INC. BID SET PAGE: 331 100- 10 r sr MEADOW CREST PLAYGROUND SECTION 331100 PROJECT NO. 11.12 FACILITY WATER DISTRIBUTION PIPING 3.13.2 Prepare reports of purging and disinfecting activities. dim Conform to City of Renton requirements. END OF SECTION 331100 .r� rrr +rr AO 41111 rrr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 331100- 11 rr S Mil S ma S ■i ■s N il S S S err MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS PART 1 - GENERAL 1_1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,apply to this Section. a 1_2 SUMMARY 1.2.1 Section Includes: 1.2.1.1 Pipe and Fittings 1.2.1.2 Cleanouts 1.2.1.3 Grease Interceptor rr 1.3 DEFINITIONS 1.3.1 PVC: Polyvinyl chloride plastic. 1.4 SUBMITTALS „r 1.4.1 Submit under provisions of Division 01 Section 013400 "Shop Drawings, Product Data & Samples,"and as further provided. 1.4.2 Certification: Provide a letter, signed by the supplier and reviewed and also assigned by an officer of the general contractor's company, certifying that the following products to be incorporated into the work meet the requirements specified. rr 1.4.2.1 Pipe and Gaskets 1.4.2.2 Cleanouts +rr 1.4.2.3 Locate Wire 1.4.3 Television Inspection Report: Prepared by a firm licensed to perform such analysis, submitted to Architect minimum of 14 days before final surfacing construction is scheduled. The following shall be submitted: 1.4.3.1 Video tape or CD of pipe 8 inches and larger and structures. 1.4.3.2 Written report documenting stationing of sags, improper joints, connections, or other areas of concern. BLRB ARCHITECTS 04/02/13 AHBL,INC. BID SET PAGE: 333000- 1 arr MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS 1.4.4 Field Test Reports: Indicate and interpret test results for compliance with performance requirements. rir 1.5 DELIVERY,STORAGE,AND HANDLING 1.5.1 Do not store plastic pipe, and fittings in direct sunlight. 1.5.2 Protect pipe, pipe fittings,and seals from dirt and damage. 1.6 PROJECT CONDITIONS 1.6.1 Site Information: Perform site survey, research public utility records, and verify existing utility locations. 1.6.2 Locate existing structures and piping to be closed and abandoned. 1.6.3 Prior to beginning the work, excavate, expose, and obtain the elevation of all connections to existing utilities. When discrepancy exists between the plans and existing conditions,the Contractor shall notify the engineer immediately. 1.7 REGULATORY REQUIREMENTS ss 1.7.1 Conform to applicable codes for materials and installation of the Work of this section. Codes include,but are not limited to,the Uniform Plumbing Code(UPC). 1.7.2 City of Renton Side Sewer Connection Permit: Contractor shall obtain and pay for permit and comply with all requirements of permit. 1.7.3 WSDOT Specification: Standard Specifications for Road, Bridge and Municipal Construction, prepared jointly by the Washington State Department of Transportation, and the American Public Works Association, Washington State Chapter, 2012 edition. All references to measurement and payment shall be deleted from consideration; and the terms agreed to in the contract substituted thereof. 1.8 PROJECT RECORD DOCUMENTS 1.8.1 Submit record drawings according to Division 01 Section 017900,"Project Record Documents." 1.8.2 Drawings shall include surveyed invert elevations, rim elevations, and identify any discovery of uncharted utilities. err 1.8.3 Conform to City of Renton requirements. NO MB BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 333000-2 ow MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS orr PART 2 - PRODUCTS 2.1 PVC PIPE AND FITTINGS 2.1.1 PVC Type Sewer Piping: 2.1.1.1 Pipe: ASTM D 3034, SDR 35, PVC sewer pipe with bell-and-spigot ends for gasketed joints. Conform to WSDOT Specification 9-05.12(1). .�r 2.1.1.2 Fittings: Conform to City of Renton standards. 2.1.1.3 Gaskets: Conform to City of Renton standards. 2_2 CLEANOUTS all 2.2.1 Cleanouts: 2.2.1.1 Conform to detail. 2.3 MANHOLES ■rr 2.3.1 Manholes: 2.3.1.1 Conform to detail. ,, 2_4 GREASE INTERCEPTOR 2.4.1 Grease Interceptor: vie 2.4.1.1 Conform to detail. 2.5 ACCESSORIES 2.5.1 Tracing Wire: Brightly colored No. 12 AWG insulated copper wire with plastic covering. rr. PART 3 - EXECUTION rim 3.1 EARTHWORK 3.1.1 Excavating, trenching, and backfilling are specified in Division 31 Section 312000 "Earth Moving." via BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 333000-3 MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS 3.2 PIPING INSTALLATION 3.2.1 General Locations and Arrangements: Drawing plans and details indicate general location and arrangement of underground sanitarysewer piping. Location and arrangement of piping layout take into account design considerations. Install piping as indicated, to extent practical. Where specific installation is not indicated,follow piping manufacturer's written instructions. 3.2.2 Install piping beginning at low point, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions for using lubricants, cements, and other Aft installation requirements. 3.2.3 Install proper size increasers, reducers, and couplings where different sizes or materials of pipes and fittings are connected. Reducing size of piping in direction of flow is prohibited. 3.2.4 When installing pipe under streets or other obstructions that cannot be disturbed, use pipe jacking ma process of microtunneling. 3.2.5 Install gravity-flow, nonpressure, drainage piping according to the following: 3.2.5.1 Install piping pitched down in direction of flow, at slope indicated. 3.2.5.2 Install piping with restrained joints at tee fittings and at changes in direction. Use corrosion-resistant rods, pipe or fitting manufacturer's proprietary restraint system, or cast-in-place- concrete supports or anchors. 3.2.6 Clear interior of piping and manholes of dirt and superfluous material as work progresses. Maintain swab or drag in piping, and pull past each joint as it is completed. Place plug in end of incomplete piping at end of day and when work stops. .r 3.2.7 Install gravity-flow piping and connect to building's sanitary drains, of sizes and in locations indicated. Terminate piping as indicated. out 3.2.8 Extend sanitary sewerage piping and connect to building's sanitary drains, of sizes and in locations indicated. Terminate piping as indicated. 3.2.9 Conform to City of Renton requirements. 3.3 PIPE JOINT CONSTRUCTION 3.3.1 Join gravity-flow, nonpressure, drainage piping according to the following: a 3.3.1.1 Join PVC sewer piping according to ASTM D 2321 and ASTM D 3034 for elastomeric- seal joints or ASTM D 3034 for elastomeric-gasket joints. 3.3.2 Pipe couplings, expansion joints, and deflection fittings with pressure ratings at least equal to a piping rating may be used in applications below unless otherwise indicated. 3.3.2.1 Use nonpressure flexible couplings where required to join gravity-flow, nonpressure sewer piping unless otherwise indicated. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 333000-4 a MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS 3.4 CLEANOUT INSTALLATION .�r 3.4.1 Install cleanouts and riser extensions from sewer pipes to cleanouts at grade. 3.4.2 Conform to detail. rr 3.5 MANHOLE INSTALLATION 3.5.1 General: Install manholes complete with appurtenances and accessories indicated. 3.5.2 Install precast concrete manhole sections with sealants according to ASTM C 891. 3.5.3 Form continuous concrete channels and benches between inlets and outlet. 3.5.4 Set tops of frames and covers flush with finished surface of manholes that occur in pavements. air 3.5.5 Retain paragraph below only if specified in "Manholes" Article. 3.5.6 Install manhole-cover inserts in frame and immediately below cover. 3.5.7 Conform to City of Renton requirements. 3_6 CONNECTIONS +rr 3.6.1 Connect nonpressure, gravity-flow drainage piping to building's sanitary building drains specified in Division 22 Section 221319"Sanitary Waste Piping Specialties." 3.6.2 Make connections to existing piping. 3.6.2.1 Conform to City of Renton Sewer connection detail and requirements. 3.6.2.2 Protect existing piping and manholes to prevent concrete or debris from entering while making tap connections. Remove debris or other extraneous material that may accumulate. +o 3.6.3 Conform to City of Renton requirements. 3_7 IDENTIFICATION 3.7.1 Materials and their installation are specified in Division 31 Section 312000 "Earth Moving." Arrange for installation of green warning tapes directly over piping and at outside edges of underground manholes. 3.7.1.1 Use detectable warning tape over nonferrous piping and over edges of underground ++� manholes. �+r BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 333000-5 S MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS 3.8 FIELD QUALITY CONTROL 3.8.1 Inspect interior of piping to determine whether line displacement or other damage has occurred. Inspect after approximately 24 inches of backfill is in place, and again at completion of Project. 3.8.1.1 Submit separate report for each system inspection. rr 3.8.1.2 Defects requiring correction include the following: 3.8.1.2.1 Alignment: Less than full diameter of inside of pipe is visible between structures. 3.8.1.2.2 Deflection: Flexible piping with deflection that prevents passage of ball or cylinder of size not less than 92.5 percent of piping diameter. 3.8.1.2.3 Damage: Crushed,broken,cracked, or otherwise damaged piping. 3.8.1.2.4 Infiltration: Water leakage into piping. 3.8.1.2.5 Exfiltration: Water leakage from or around piping. 3.8.1.3 Replace defective piping using new materials, and repeat inspections until defects are within allowances specified. 3.8.1.4 Reinspect and repeat procedure until results are satisfactory. 3.8.2 Test new piping systems, and parts of existing systems that have been altered, extended, or repaired, for leaks and defects. w� 3.8.2.1 Do not enclose,cover, or put into service before inspection and approval. a 3.8.2.2 Test completed piping systems according to requirements of authorities having jurisdiction. 3.8.2.3 Schedule tests and inspections by authorities having jurisdiction with at least 24 hours' 11111 advance notice. 3.8.2.4 Submit separate report for each test to Owner and City of Renton inspector. a 3.8.2.5 Test sanitary sewerage according to requirements of City of Renton: 3.8.3 Leaks and loss in test pressure constitute defects that must be repaired. 3.8.4 Replace leaking piping using new materials, and repeat testing until leakage is within allowances specified. 39 CLEANING S 3.9.1 Clean dirt and superfluous material from interior of piping. Ns BLRB ARCHITECTS 04/02/13 r� AHBL,INC. BID SET PAGE: 333000-6 rid MEADOW CREST PLAYGROUND SECTION 333000 PROJECT NO. 11.12 FACILITY SANITARY SEWERS arr 3.10 PROTECTION .�r 3.10.1 Protect finished installation from any disturbance. 3.10.2 Protect pipe and aggregate cover from damage or displacement until backfilling operation is in progress. Damaged materials shall be replaced at the Contractor's expense. wrM END OF SECTION 333000 ow .ir r. es No BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 333000-7 �rti w al rr a a a S S • aim MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING rr PART 1 - GENERAL 1_1 RELATED SECTIONS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,apply to this Section. arr 1.1.2 Division 31 Section 312000 "Earth Moving"for trenching, bedding, and backfilling. 1.1.3 Division 31 Section 312513 "Erosion Control"for temporary erosion control measures. .an 1.2 SUMMARY 1.2.1 Section Includes: 1.2.1.1 Pipe and Fittings 1.2.1.2 Nonpressure Transition Couplings 1.2.1.3 Cleanouts 1.2.1.4 Catch Basins and Manholes as 1.2.1.5 Connecting site drainage piping to City of Renton storm system. 1.2.1.6 All temporary and permanent storm drainage piping, fittings, and accessories. 1.2.1.7 Connection of building downspouts to roof drains. ow 1.2.1.8 Cleaning and flushing storm system at completion of project. arr 1.3 DEFINITIONS 1.3.1 CPEP: Corrugated polyethylene plastic pipe. 1.3.2 PVC: Polyvinyl chloride plastic pipe. "" 1.4 SUBMITTALS 1.4.1 Submit under provisions of Division 01, Section 013400 "Shop Drawings, Product Data & aaaar Samples,"and as further provided. arr BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100— 1 MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 1.4.2 Certification: 1.4.2.1 Provide a letter, signed by the supplier and reviewed and also signed by an officer of the Contractor's company, certifying that the following products to be incorporated into the work meet the requirements specified. 1.4.2.2 Products: 1.4.2.2.1 Catch Basins,Grates, and Frames. 1.4.2.2.2 Pipe 1.4.2.2.3 Cleanouts 1.4.3 Record drawings according to Division 01 Section 017900, "Project Record Documents." 1.4.3.1 Record information shall be prepared by a professional land surveyor licensed in the State irr of Washington and shall include all rim and invert elevations and as-built location (coordinates). 1.4.3.2 Record drawings for City of Renton drawings shall show station, offset, invert, and rim elevations to nearest 0.01 foot. 1.4.3.3 Record drawings for City of Renton drawings shall be submitted within 30 days of substantial completion. 1.4.4 Television Inspection Report: Prepared by a firm licensed to perform such analysis, submitted to Architect minimum of 14-days before final surfacing construction is scheduled. The following shall be submitted: 1.4.4.1 Video tape or CD of pipe 8 inches and larger and structures. 1.4.4.2 Written report documenting stationing of sags, damaged or improper joints, and connections or other areas of concern or non-conformance. Report shall include proposed repair for all documented problem areas. 1.5 DELIVERY,STORAGE,AND HANDLING 1.5.1 Do not store plastic manholes, pipe, and fittings in direct sunlight. 1.5.2 Protect pipe,pipe fittings, and seals from dirt and damage. 1.5.3 Handle Filterra units according to manufacturer's written rigging instructions. 1.6 PROJECT CONDITIONS 1.6.1 Site Information: Perform site survey, research public utility records, and verify existing utility locations. Field verify all connection points of existing facilities and contact Architect if proposed improvement cannot be provided. 1.6.2 Locate existing structures and piping to be closed and abandoned. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-2 m.r MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 1.7 REFERENCE STANDARDS 1.7.1 WSDOT Specification: Standard Specifications for Road, Bridge and Municipal Construction, prepared jointly by the Washington State Department of Transportation, and the American Public Works Association, Washington State Chapter, 2012 edition. All references to measurement and payment shall be deleted from consideration, and terms agreed to in the contract substituted therefore. so 1.7.2 WSDOT Standard Plan: Standard Plans for Road and Bridge Construction, prepared by Washington State Department of Transportation, 2008 edition. arr 1.7.3 2009 King County Surface Water Design Manual. 1.7.4 City of Renton Amendments to the King County Surface Water Design Manual, February 2010. PART 2 -PRODUCTS NNW 2.1 DUCTILE-IRON,CULVERT PIPE AND FITTINGS 2.1.1 Pipe: ASTM A 716, for push-on joints. Conform to WSDOT Specification 9-05.13. 2.1.2 Standard Fittings: AWWA CI 10, ductile or gray iron, for push-on joints. 2.1.3 Compact Fittings: AWWA C153, for push-on joints. as 2.1.4 Gaskets: AWWA C111,rubber. 2.2 PE PIPE AND FITTINGS 2.2.1 Corrugated PE Drainage Pipe and Fittings NPS 3 to NPS 10: AASHTO M 252M, Type S, with smooth waterway for coupling joints. Conform to WSDOT Specification 9-05.19. 2.2.1.1 Soiltight Couplings: AASHTO M 252M, corrugated,matching tube and fittings. - 2.2.2 Corrugated PE Pipe and Fittings NPS 12 to NPS 60: AASHTO M 294M, Type S, with smooth waterway for coupling joints. Conform to WSDOT Specification 9-05.19. as 2.2.2.1 Soiltight Couplings: AASHTO M 294M,corrugated,matching pipe and fittings. 2.3 PVC PIPE AND FITTINGS 2.3.1 PVC Gravity Sewer Piping: 2.3.1.1 Pipe: ASTM D 3034, SDR 35, PVC sewer pipe with bell-and-spigot ends for gasketed joints. Conform to WSDOT Specification 9-05.12(1). 2.3.1.2 Fittings: ASTM D 3034, PVC with bell ends. 2.3.1.3 Gaskets: ASTM F 477, elastomeric seals. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-3 aw MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING WI 2.4 NONPRESSURE TRANSITION COUPLINGS 2.4.1 Comply with ASTM C 1173, elastomeric, sleeve-type,reducing or transition coupling, for joining underground non pressure piping. Include ends of same sizes as piping to bejoined, and g P PP g• PP g corrosion- resistant-metal tension band and tightening mechanism on each end. 2.4.2 Sleeve Materials: 2.4.2.1 For Plastic Pipes: ASTM F 477,elastomeric seal or ASTM D 5926, PVC. 2.4.2.2 For Dissimilar Pipes: ASTM D 5926, PVC or other material compatible with pipe materials being joined. 2.5 CLEANOUTS 2.5.1 Cast-Iron Cleanouts: 2.5.1.1 Conform to detail. mii 2.6 MANHOLES mit 2.6.1 Precast Concrete Catch Basins: Conform to WSDOT Standard Plan Section B Series for catch basin type indicated on plans. 2.6.2 Manhole Frames and Covers: 2.6.2.1 Frames and Grates: Cast or ductile iron designed for heavy-duty service, conforming to WSDOT Standard Plan B-25.20, B-30.30, B-30.40, and B-30.50 for grate type indicated. All grates and lids shall be locking. 2.6.2.2 Solid Locking Lid: Cast or ductile iron conforming to WSDOT Standard Plan B-30.20-01. 2_7 CATCH BASINS No 2.7.1 Precast Concrete Catch Basins: Conform to WSDOT Standard Plan B Series for catch basin type indicated on plans. a 2.7.2 Frames and Grates: Cast or ductile iron designed for heavy-duty service, conforming to WSDOT Standard Plan B-30.10-00, 30-30, and 50-00 for grate type indicated. All grates and lids shall be locking. 2.7.3 Solid Locking Lid: Cast or ductile iron conforming to WSDOT Standard Plan B-30.20-01. ail BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-4 MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING air PART 3 - EXECUTION 3_1 EARTHWORK 3.1.1 Excavation, trenching, and backfilling are specified in Division 31 Section 312000 "Earth Moving." 3.2 PIPING INSTALLATION 3.2.1 General Locations and Arrangements: Drawing plans and details indicate general location and a.r arrangement of underground storm drainage piping. Location and arrangement of piping layout take into account design considerations. Install piping as indicated, to extent practical. Where specific installation is not indicated,follow piping manufacturer's written instructions. 3.2.2 Install piping beginning at low point, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions for use of lubricants, cements, and other installation requirements. 3.2.3 Install manholes or catch basins for changes in direction unless fittings are indicated. Use fittings sr for branch connections unless direct tap into existing sewer is indicated. 3.2.4 Install proper size increasers, reducers, and couplings where different sizes or materials of pipes re and fittings are connected. Reducing size of piping in direction of flow is prohibited. 3.2.5 When installing pipe under streets or other obstructions that cannot be disturbed, use pipe jacking process of microtunneling. 3.2.6 Install gravity-flow,nonpressure drainage piping according to the following: 3.2.6.1 Install piping pitched down in direction of flow. 3.2.6.2 Install piping NPS 6 and larger with restrained joints at tee fittings and at changes in direction. Use corrosion-resistant rods, pipe or fitting manufacturer's proprietary restraint system, or cast-in-place concrete supports or anchors. 3.2.6.3 Install ductile-iron piping and special fittings according to AWWA C600 or AWWA M41. err 3.2.6.4 Install PE corrugated sewer piping according to ASTM D 2321. 3.2.6.5 Install PVC sewer piping according to ASTM D 2321 and ASTM F 1668. 3.3 PIPE JOINT CONSTRUCTION rr 3.3.1 Join gravity-flow,nonpressure drainage piping according to the following: rr 3.3.1.1 Join ductile-iron culvert piping according to AWWA C600 for push-on joints. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100—5 rr mmt MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 3.3.1.2 Join ductile-iron piping and special fittings according to AWWA C600 or AWWA M41. 3.3.1.3 Join corrugated PE piping according to ASTM D 3212 for push-on joints. am 3.3.1.4 Join PVC sewer piping according to ASTM D 2321 and ASTM D 3034 for elastomeric- seal joints or ASTM D 3034 for elastomeric-gasketed joints. mit 3.3.1.5 Join dissimilar pipe materials with nonpressure-type flexible couplings. 3.3.2 Provide a tee in the roof drain at each building downspout location; provide all fittings required to ; connect to roof drains. See architectural plans for downspout locations. No above-grade offsets shall be allowed. 3.4 CLEANOUT INSTALLATION 3.4.1 Install cleanouts and riser extensions from sewer pipes to cleanouts at grade. S' 3.4.1.1 Conform to detail. 3.4.2 Set cleanout frames and covers in earth in cast-in-place concrete block, conform to detail. 3.4.3 Set cleanout frames and covers in concrete pavement and roads with tops flush with pavement rre surface. 3.4.4 Cleanouts shall be provided at all changes in direction. 3.4.5 Cleanouts for roof drainage connections shall be located within 2 feet of building and shall conform to detail on plan. moi 3_5 MANHOLE INSTALLATION 3.5.1 General: Install manholes, complete with appurtenances and accessories indicated. Installation shall conform to WSDOT Specification Division 7. 3.5.2 Install precast concrete manhole sections with sealants according to ASTM C 891. 3.5.3 Where specific manhole construction is not indicated, follow manhole manufacturer's written instructions. 3.5.4 Set tops of frames and covers flush with finished surface of manholes that occur in pavements. met 3_6 CATCH BASIN INSTALLATION 3.6.1 Installation shall conform to WSDOT Specification Division 7. 3.6.2 Construct catch basins to sizes and shapes indicated. 3.6.3 Set frames and grates to elevations indicated. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-6 4.10 MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 3.7 FILTERRA INSTALLATION ar 3.7.1 Installation shall conform to manufacturer's recommendations. 3_8 STORMTECH CHAMBER INSTALLATION wir 3.8.1 Installation shall conform to manufacturer's recommendations. 3.9 STORMFILTER INSTALLATION 3.9.1 Installation shall conform to manufacturer's recommendations. 3.10 CONNECTIONS rrr 3.10.1 Connect nonpressure, gravity-flow drainage piping in building's storm building drains specified in Division 22 Section 221413 "Facility Storm Drainage Piping." 3.10.2 Make connections to existing storm drain manhole. AU 3.10.2.1 Conform to City of Renton requirements for connection to existing storm drain manholes. 3.10.2.2 Protect existing piping, manholes, and structures to prevent concrete or debris from entering while making tap connections. Remove debris or other extraneous material that may 'N accumulate. 3.10.3 Pipe couplings, expansion joints, and deflection fittings with pressure ratings at least equal to piping rating may be used in applications below unless otherwise indicated. 3.10.3.1 Use nonpressure-type flexible couplings where required to join gravity-flow, nonpressure r sewer piping unless otherwise indicated. 3.11 OIL WATER SEPARATOR arr 3.11.1 Installation shall conform to manufacturer's recommendations. rwr 3.12 CLOSING ABANDONED STORM DRAINAGE SYSTEMS 3.12.1 Abandoned Piping: Close open ends of abandoned underground piping indicated to remain in i"" place. Include closures strong enough to withstand hydrostatic and earth pressures that may result after ends of abandoned piping have been closed. 3.12.1.1 Close open ends of piping with threaded metal caps, plastic plugs, or other acceptable methods suitable for size and type of material being closed. Do not use wood plugs. IS BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-7 MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 3.12.2 Abandoned Manholes and Structures: Excavate around manholes and structures as required and use one procedure below: ea 3.12.2.1 Remove manhole or structure and close open ends of remaining piping. 3.12.3 Backfill to grade according to Division 31 Section 312000 "Earth Moving." NW 3.13 IDENTIFICATION so 3.13.1 Materials and their installation are specified in Division 31 Section 312000 "Earth Moving." Arrange for installation of green warning tape directly over piping and at outside edge of underground structures. 3.13.1.1 Use detectable warning tape over ferrous piping. 3.13.1.2 Use detectable warning tape over nonferrous piping and over edges of underground structures. 3.13.1.3 Locate wire is not required when pipe extends from catch basin to catch basin. 3.13.1.4 Use locate wire along all roof drain systems. 3.13.1.5 The ends of locate wire must be exposed within catch basin or cleanout and maintained. 3.14 FIELD QUALITY CONTROL 3.14.1 Clear interior of piping and structures of dirt and superfluous material as work progresses. Maintain swab or drag in piping, and pull past each joint as it is completed. rir 3.14.1.1 In large, accessible piping,brushes and brooms may be used for cleaning. go 3.14.1.2 Place plug in end of incomplete piping at end of day and when work stops. 3.14.1.3 Flush piping between manholes and other structures to remove collected debris, if required by authorities having jurisdiction. ' 3.14.2 Inspect interior of piping to determine whether line displacement or other damage has occurred. Inspect after approximately 24 inches of backfill is in place, and again at completion of Project. 3.14.2.1 Submit separate reports for each system inspection. 3.14.2.2 Defects requiring correction include the following: 3.14.2.2.1 Alignment: Less than full diameter of inside of pipe is visible between structures. r 3.14.2.2.2 Deflection: Flexible piping with deflection that prevents passage of ball or cylinder of size not less than 92.5 percent of piping diameter. S 3.14.2.2.3 Damage: Crushed,broken, cracked,or otherwise damaged piping. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-8 ing MEADOW CREST PLAYGROUND SECTION 334100 PROJECT NO. 11.12 STORM UTILITY DRAINAGE PIPING 3.14.2.2.4 Infiltration: Water leakage into piping. 3.14.2.2.5 Exfiltration: Water leakage from or around piping. air 3.14.2.3 Replace defective piping using new materials, and repeat inspections until defects are within allowances specified. 3.14.2.4 Reinspect and repeat procedure until results are satisfactory. aim 3.14.3 Test new piping systems, and parts of existing systems that have been altered, extended, or repaired, for leaks and defects. 3.14.3.1 Do not enclose,cover, or put into service before inspection and approval. 3.14.3.2 Test completed piping systems according to requirements of authorities having jurisdiction. 3.14.3.3 Schedule tests and inspections by authorities having jurisdiction with at least 24 hours' advance notice. 3.14.3.4 Submit separate report for each test. 3.14.3.5 Gravity-Flow Storm Drainage Piping: Test according to requirements of authorities having jurisdiction, UNI-B-6, and the following: as 3.14.3.5.1 Exception: Piping with soiltight joints unless required by authorities having jurisdiction. 3.14.4 Leaks and loss in test pressure constitute defects that must be repaired. n,r, 3.14.5 Replace leaking piping using new materials, and repeat testing until leakage is within allowances specified. 3.15 CLEANING 3.15.1 Clean interior of piping of dirt and superfluous materials. Flush with water. END OF SECTION 334100 rr err BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334100-9 �.rrr► rr S S ma S S S MEADOW CREST PLAYGROUND SECTION 334600 PROJECT NO. 11.12 SUBDRAINAGE wr PART 1 - GENERAL 1.1 RELATED DOCUMENTS 1.1.1 Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,apply to this Section. 1_2 SUMMARY 1.2.1 This Section includes subdrainage systems for the following: 1.2.1.1 Foundations. or 1.2.1.2 Retaining walls. iis 1.2.1.3 Seat walls. 1.2.2 Related Sections include the following: 1.2.2.1 Division 31 Section 312000 "Earth Moving." 1.2.2.2 Division 33 Section 334100"Storm Utility Drainage Piping." 1.3 DEFINITIONS ryr 1.3.1 PVC: Polyvinyl chloride plastic. 1.3.2 Subdrainage: Drainage system that collects and removes subsurface or seepage water. +rr 1.4 SUBMITTALS am 1.4.1 Submit under provisions of Division 01 Section 013400 "Shop Drawings, Product Data & Samples,"and as further provided. lei 1.4.2 Certification: 1.4.2.1 Provide a letter, signed by the supplier and reviewed and also signed by an officer of the Contractor's company, certifying that the following products to be incorporated into the work to meet the requirements specified. air 1.4.2.2 Product Data: For the following: 1.4.2.2.1 Perforated Drainage Pipe. err 1.4.2.2.2 Gravel Backfill for Drains. did BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334600— 1 OE MEADOW CREST PLAYGROUND SECTION 334600 PROJECT NO. 11.12 SUBDRAINAGE a 1.4.2.2.3 Filter Fabric. 1.5 COORDINATION 1.5.1 Coordination work under provisions of Division 01 Section 013100 "Project Coordination." a PART 2 - PRODUCTS aft 2_1 MATERIALS imi 2.1.1 Foundation Drainage Piping and Accessories: Provide PVC perforated and non-perforated pipe conforming to ASTM D3034 SDR-35, of 6-inch diameter size unless otherwise shown, complete with standard accessories; accessories to include, as applicable, reducing tees, 45 degree elbows, perforated end plugs, 45 degree "Y"s, snap couplings, tees, saddle tees, and snap adapters where connecting tubing to piping; corrugated flexible plastic pipe not permitted. Furnish non-perforated piping for connecting footing drain piping to storm sewer at catch basin only. N 2.1.2 Filter Fabric: Filter fabric enveloping washed gravel surrounding the perforated piping shall be Mirafi "14ONS," Reemay "Typar,"or approved equivalent. ini 2.1.3 Gravel For Slotted Drain Tube Surround: Envelope around the perforated piping and against building foundation walls shall be 1-1/2 inch minus clean washed graded gravel conforming to Washington State Department of Transportation Specification (WSDOT/APWA) Standard Specifications 9.03.12(4), "Gravel Backfill for Drains." 2.1.4 Backfill Material: Furnish additional backfill materials as specified under Division 31 Section 312000,"Earth Moving." ii 2.1.5 Cleanouts: Mii 2.1.5.1 ASTM D 3034, PVC cleanout threaded plug and threaded pipe hub. 2.1.5.2 Conform to detail. PART 3 - EXECUTION N 3_1 TRENCH EXCAVATIONS N 3.1.1 Excavating and Trenching: 3.1.1.1 Use previously excavated footing trenches for perimeter footing drains at building perimeter. Excavate additional trenches for foundation drainage as indicated and otherwise required for connection to storm sewer line. 3.1.1.2 The Contractor shall do all additional excavation required of whatever substance rrlii encountered to the lines and grades indicated on the Drawings. BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334600-2 N MEADOW CREST PLAYGROUND SECTION 334600 PROJECT NO. 11.12 SUBDRAINAGE 3.1.1.3 All material suitable for use as backfill shall be piled in an orderly manner a sufficient distance from the bank of the trench to avoid overloading and to prevent sliding into the trench. 3.1.1.4 The Contractor shall do such grading as is necessary to prevent surface water from entering the excavation. err 3_2 RETAINING-WALL DRAINAGE INSTALLATION all 3.2.1 Lay flat-style geotextile filter fabric in trench and overlap trench sides. 3.2.2 Place supporting layer of drainage course over compacted subgrade to compacted depth of not less than 6 inches. NU 3.2.3 Encase pipe with sock-style geotextile filter fabric before installing pipe. Connect sock sections with adhesive. r 3.2.4 Add drainage course to width of at least 6 inches on side away from wall and to top of pipe to perform tests. 3.2.5 After satisfactory testing, cover drainage piping to width of at least 6 inches on side away from footing and above top of pipe to within 6 inches of finish grade. 3.2.6 Place drainage course in layers not exceeding 6 inches in loose depth; compact each layer placed and wrap top of drainage course with flat-style geotextile filter fabric. die 3.2.7 Place layer of flat-style geotextile filter fabric over top of drainage course, overlapping edges at least 4 inches. 3_3 CLEANOUT INSTALLATION 3.3.1 Cleanouts for Foundation and Retaining-Wall Subdrainage: ars 3.3.1.1 Install cleanouts from piping to grade. Locate cleanouts at beginning of piping run and at changes in direction. Install fittings so cleanouts open in direction of flow in piping. MIN 3.3.1.2 Conform to detail. rrl 3.4 PREPARATORY WORK OF OTHER SECTIONS 3.4.1 Do not lay piping work until damp proofing has been properly applied and cured. 3_5 INSTALLATION OF DRAINAGE TUBING err 3.5.1 Place foundation drainage tubing at exterior perimeter wall footings as indicated on plans. 3.5.2 Trim previous foundation excavations to 2 inches below tubing invert, full cross section width, with even downward slope to storm sewer line. ,+w BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334600—3 arr MEADOW CREST PLAYGROUND SECTION 334600 PROJECT NO. 11.12 SUBDRAINAGE 3.5.3 Place gravel in bottom of excavation to 2-inch minimum depth. 3.5.4 Lay filter fabric over gravel base full trench width, with ends lapped 3 feet minimum; install carefully so as not to tear or punch holes in fabric. 3.5.5 Carefully place pipe with even downward slope. Lay drain tubing using specified couplings and fittings. Install cleanouts as necessary and appropriate. 3.5.6 Fill gravel surround around and over foundation drain tubing to provide a 12-inch minimum cover over tubing. 3.5.7 Lay a second layer of filter fabric over gravel surround full trench width, with ends lapped 3 feet minimum; install carefully so as not to tear or punch holes in fabric. 3.5.8 Backfill remaining portion of foundation drainage trench with backfill material specified under Division 31 Section 312000 "Earth Moving," in layers not exceeding 8 inches loose depth, each layer compacted as specified under Section 312000. 3.6 CONNECTIONS TO STORM SEWER ss 3.6.1 Drawings indicate general arrangement of piping, fittings,and specialties. 3.6.2 Connect low elevations of subdrainage system to solid-wall-piping storm drainage catch basin. 3.7 IDENTIFICATION is 3.7.1 Materials and their installation are specified in Division 31 Section 312000 "Earth Moving." Arrange for installation of green warning tapes directly over piping. se 3.7.1.1 Install detectable warning tape over nonferrous piping and over edges of underground structures. Nis 3.8 FIELD QUALITY CONTROL 3.8.1 Testing: After installing drainage course to top of piping, test drain piping with water to ensure free flow before backfilling. Remove obstructions, replace damaged components, and repeat test until results are satisfactory. mit 39 CLEANING 3.9.1 Clear interior of installed piping and structures of dirt and other superfluous material as work progresses. Maintain swab or drag in piping and pull past each joint as it is completed. Place plugs in ends of uncompleted pipe at end of each day or when work stops. END OF SECTION 334600 BLRB ARCHITECTS 04/02/13 AHBL, INC. BID SET PAGE: 334600-4 lir ow ari rrt via dim..... , ;{-,,',,, '1 mi ,Il a Il, .., i II iii iii,,, d ,..:4 a ii '":j fd 1 1 id ..,,:•; ,,,,,, ::.'i