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Home My WebLink AboutMiscTECHNICAL INFORMATION REPORT DRAINAGE REPORT RENTON TRIPLEXES RENTON, WASHINGTOI*VELOPr.J,B; T PLANNING D Y yr: z7c�li0"� NOV - 2 2001 Submitted to: RECkovED Victor Phan 201 Valley Avenue Puyallup, Washington 98371 Submitted by: E3RA, Inc, 9802 - 29th Avenue West Suite B-102 Everett, Washington 98204 October 25, 2007 T07250 Technical Information Report Drainage Report Renton Triplexes Renton, Washington October 252007 T07250 Prepared For Victor Phan 201 Valley Ave Puyallup, Washington 98371 206-778-6859 Prepared By E3RA, Inc 9802 - 29th Ave W, #B 102 Everett, Washington 98204 425-356-3372 TABLE OF CONTENTS Page No. CERTIFICATION..................................... ....-----.................................................-----.-----.--..........1 INTRODUCTION/ PROJECT OVERVIEW..................................................................................1 ExistingConditions..............................................................................................................2 ProposedConditions.....................................•------.---...........................2 CONDITIONS AND REQUIREMENTS SUMMARY ................. ................................................... 2 OFFSITE ANALYSIS.................................................................................................................2 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS DESIGN ................... ......_--_3 ExistingHydrology................................................................................. .............................3 Developed Site Hydrology.............................................3 CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (CSWPPP)...................4 Element 1- Marking Clearing Limits......................................................................................4 Element 2: Establish Construction Access..........................................................................4 Element 3: Control Flow Rates...........................................................................................4 Element 4: Install Sediment Control....................................................................................4 Element 5: Stabilize Soils...................................................................................................4 Element6- Project Slopes...................................................................................................5 Element 7: Protect Drain Inlets ......--•--•..............................................................................5 Element 8: Stabilize Channels and Outlets.........................................................................5 Element 9: Control Pollutants.............................................................................................5 Element 10. Control Dewatering..........................................................................................5 Element 11- Maintain BMPs----......................................................................................... ---5 Element12: Manage the Project ................. ......................................................................... 5 PREPARATION OF STORMWATER SITE PLANS....................................................................6 Source Control of Pollution..................................................................................................5 Discharge at the Natural Location / Preservation of Natural Systems and Outfalls...............6 BondQuantities .......................... .........................................................................................6 FireHydrant.........................................................................................................................6 List of Figures Figure 1: Topographic and Location Map Figure 2: TIR Worksheet Figure 3- Basin Map Figure 4: Soils Map APPENDICIES APPENDIX A -City of Renton Maps APPENDIX B-Hydrology APPENDIX C-Spill Record Sheet APPENDIX D-Maintenance Manual and Summary ........................................................ D-1... D-3 APPENDIX E-Inspection Schedule..... .................................................................................... E-1 APPENDIX F-Bond Estimate. APPENDIXG-References--•---------------•------................................................ ............................. G-1 APPENDIX H- Grading and Drainage Plan (Permanent Stormwater Control Plan) ................. H-1 E3RA CERTIFICATION PO Box 44890 Tacoma, WA 98448 253-537-9400 253-537-9401 Fax I herby certify that this Drainage and Erosion Control Plan for the Renton Duplexes has been prepared by me or under my supervision and meets minimum standards of the City of Renton and normal standards of engineering practice. I understand that the City does not and will not assume liability for the sufficiency, suitability or performance of the drainage facilities designed by me. r . i 1 � '. J tom, 1 Fiob2rt C kS MO. G=_'a -; U1401 ` EXPIRES 12/5/()7 i October 25, 2007 E3RA, Inc. T07250 / Drainage Report — Renton Triplexes INTRODUCTION/PROJECT OVERVIEW This report is intended to meet the stormwater requirements of the City of Renton for the construction of the Renton Triplexes consisting of two buildings, landscaping, a recreational area, paved access and parking areas. The subject property is located at 530 Shattuck Avenue South in the City of Renton in King County, Washington as shown on the attached Site and Location Plan (Figure 1). The Parcel Number is 7841300400. Our site visit was conducted on October 2, 2007. The Technical Information Report is attached as Figure 2. Existing Conditions The site consists of an existing home, driveway, and garage totaling approximately 2,200 square -feet of impervious surface. The total new impervious area of the improvement to the property is approximately 5,203 square -feet and 2,200 square -feet replaced impervious area. The pervious areas of the property are landscaped with grass and one rhododendron. The site is level. The site is 9,600 square -feet or 0.22 acres. The site soils are not mapped due to urbanization prior to the SCS mapping, shown in Figure 3. The site is in the Green/Duwamish River Watershed Basin, shown in Figure 4. The property is served by water, storm, and sewer. All services are on Shattuck Avenue South. An additional sewer line can be found in the alley to the east of the site as well. Proposed Conditions It is proposed to add 3,120 square -feet of drivewaylparking and 4,283 square -feet of roof to the site. It is also proposed to remove the existing home, garage and driveway totaling approximately 2,200 square -feet. The site is relatively level. Grading will be minimal and shall consist of excavation of building pads and access road grading. The total new and replaced impervious area of the site will be 5,203 square -feet. The plans propose to disturb 9,600 square -feet or less. Based on the increases in impervious area, Minimum Requirements #1 through #8 apply to this project. CONDITIONS AND REQUIREMENTS SUMMARY No cuts or fills will be associated with this project. It is recommended to obtain the services of a geotechnical firm to monitor any structural fill placement, if needed, to assure that it meets compaction requirements. E3RA is available to perform that service if needed_ OFFSITE ANALYSIS During our offsite analysis we found no potential problems. Our analysis included the following: • Capacity Problems: We propose connecting to the City stormwater system utilizing a catch basin. There are no known capacity problems in this area. • Flooding: The site does not have a history of flooding and is outside the flood hazard area as mapped by the city of Renton and shown in Appendix A - Flood Hazard Areas. • Upland Erosion/Landslide Hazards: There are no erosion or landslide areas on or near the site as per the map of Erosion Hazard Areas for the City of Renton (Appendix A). iJ October 25, 2007 T072501 Drainage Report - Renton Triplexes • Channel Erosion/Outfail Location: The outfall location will be a catch basin. • Violations of surface quality water standards: None were noted. E3RA, Inc. The only system noted is the City storm system. No known capacity or other problems exist at this time. This system shall be protected with a series of catch basin protection inserts as needed_ • There are no stream inlets or outlets on or near the site and the site is not in an aquifer recharge area as shown on the Aquifer Protection Zones map (Appendix A). • Groundwater depth is not known in the area. The proposed development will not affect the groundwater in the area in any significant way. FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS DESIGN Existing Site Hydrology Site hydrology currently flows from east to west across the site which slopes at approximately 0.5 percent or less on average. The surface water sheet flows across the property or infiltrates into the ground_ The pre -developed flows were analyzed with King County Runoff Time Series. The basin used was the property boundaries. The flows were comprised of the historic site conditions assuming 75 percent forest, 15 percent grass, and 10 percent impervious totaling 0.22 acres. Developed Site Hydrology The developed flows and analysis were performed with KCRTS. The basin consisted of the entire property. The areas to be landscaped were modeled as an outwash pasture and consisted of 0.05 acres. The impervious areas of the site, consisting of roof and driveway surfaces, made up the rest of the site and totaled 0.17 acres. The detailed analysis and graphical information can be found in Appendix B of this report. Outwash was chosen as the soil type to be conservative. The difference in site run-off from developed to pre -developed is less if modeled as till. Data Summary Flow Rates (cfs): Difference (cfs) Storm Predeveloped (Historic) Post -developed 2 0.010 0.046 0.036 10 0.017 0.054 0.037 100 0.029 0.091 0.062 The onsite stormwater runoff will be collected in a series of Type 1 catch basins and routed to the City storm system. The ground in the area is not readily conducive to infiltration and the difference in developed 100 peak flows to the historic site condition peak flows, as defined in the KCSWDM 2005, is less then 0.1 cfs. Due to the small increase in stormwater flows from this site, a detention system is not required and the site qualifies for an exception as stated on Page 1-35 of the KCSWDM 2005, Exceptions in a flow control area, item 2. 3 October 25, 2007 E31RA, Inc. T072501 Drainage Report — Renton Triplexes This site also qualifies for the exemption from the water quality Core requirement #8. The site is not creating new or replacing a total of 5,000 sf or more of pollution generating surface, qualifying for the Surface Area Exemption. Item 1 found under exemptions form Core requirement #8 found in the KCSWDM 2005, page 1-58. CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (CSWPPP) Construction stormwater pollution prevention consists of the following 12 elements: Element 1: Marking Clearing Limits The clearing limits for this project are the entire property_ These areas will impact mowed lawn, berries, and several trees. The clearing limits will be marked with silt fencing. Element 2: Establish Construction Access Construction vehicle access will be limited to one route, the construction entrance. This will mitigate sediment tracking by vehicular traffic. If sediment is tracked off site, the public roads shall be cleaned thoroughly at the end of each day, or more frequently, should conditions require it. The cleaning will be accomplished with a street -sweeper - Element 3: Control Flow Rates The flow rates from this property will not be significantly increased due to the construction of this project. Potential increases to the runoff from this site during construction are best described as de minimus. Element 4: Install Sediment Controls The following Best Management Practices (BMPs) are specified for this project: 4 Silt Fence + Temporary and Permanent Seeding + Catch Basin Filter Insert The detail for the catch basin filters can be found on the plans. They are to be placed in the catch basin at the corners of Shattuck and 6th Street as well as Shattuck and Houser Way South. Element 5: Stabilize Soils All exposed soils will be stabilized according to the following schedule: October 1 through April 30: No soils shall remain exposed and unworked for more than two days. • May 1 through September 30: No soils shall remain exposed and unworked for more than seven days. 4 October 25, 2007 T07250 / Drainage Report — Renton Triplexes Element 6: Protect Slopes There are no significant slopes on site_ ERA, Inc. Element 7: Protect Drain Inlets The catch basins nearby shall be protected with catch basin filter inserts. They are to be placed in the catch basin at the corners of Shattuck and 6th Street as well as Shattuck and Houser Way South. Element 8: Stabilize Channels and Outlets There were no channels or outlets noted at the time of our visit. Element 9: Control Pollutants Onsite fueling of equipment will not be permitted on this project. Maintenance and repair of equipment or vehicles will not be permitted on this project. A spill report log sheet can be found in Appendix C of this report. Element 10: Control Dewatering Little to no dewatering is anticipated. Element 11: Maintain BMPs All BMPs will be inspected, maintained, and repaired to assure their continued performance. The inspection schedule, maintenance, and repairs shall be conducted in accordance with industry standards and/or manufacturer's recommendations. All sediment control BMPs shall be inspected weekly or after a runoff producing event during the dry season and daily during the wet season. All temporary erosion and sediment control BMPs will be removed within 30 days after final stabilization. Element 12: Manage the Project The clearing and grading will occur only as necessary to permit the construction activities, i.e., construction phasing. A Certified Professional in Erosion and Sediment Control, Robert Elslip, P.E., C.P_E_S.C., (cell: 206-226-5777), will be on -call at all times. The project contact person is Victor Pham (206-778-6859). PREPARATION OF STORMWATER SITE PLANS A stormwater site plan has been developed for this site. The plan is contained in Appendix H. The major elements of the plan include: • Grading the access road area to drain to new catch basins; and Routing the roof area runoff to the detention tank. Source Control of Pollution Source control of pollution is meant to prevent pollution before it occurs. Source controls for this project will include: 5 October 25, 2007 ERA, Inc. T07250 ! Drainage Report — Renton Triplexes • Construction Phasing to reduce exposed soils; Temporary or permanent seeding to reduce exposed soils; and Prohibiting the fueling and/or maintenance of vehicles on site_ Discharge at the Natural Location / Preservation of Natural Drainage Systems and Outfalls There were no natural drainage features noted during the time of our visit. This project will not alter the existing drainage patterns. Bond Quantities A bond estimate can be found in Appendix F of this report. The total bond estimated amount is $9,462,20. Fire Hydrant A fire hydrant will be placed according to the plans as directed by the Fire Department and according to the City of Renton standard details and specifications. The site is in the 190 psi area of the city. 11 TGPO! map printed on 10117107 from "Untided,tpc" 1221114.000' W 122013.000' W WGS84122° 12,000' W is C C a t� 0 d RRAfe41f4XIN � lk tk 122°14,000' W 122°13,000' W WGS84122°12,000' W TN MN S 1 MLE 18° LOUD FEET 0 5w ION (DETERS Map created wish TOP010 02003 Moral Geo"br (ww.rafiom]ge ppbiuom4opo) E3RA, Inc. P.O Box 44890 Tacoma, WA 98448 ILK 0 0 0 �v a z a 0 M N 0 RENTON TRIPLEXES TOPOGRAPHIC AND LOCATION MAP FIGURE I T07250 RENTON, WASHINGTON KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part t PROJECT OWNER AND PROJECT ENGINEER Project Owner 41I0-o4 jeSF4m Phone Address 2p t (��//ty �ldrsstrC Project Engineer U,6�,'/ Company .0 % —, Phone �2.5-35G-3.32 Part 3 TYPE..OF'PERMIT APPLICATION ................ . . ................ . ❑ Landuse Services Subdivison / Short Subd. / UPD 21 Building Services M/F / Commerical / SFR Z1 Clearing and Grading QO Right -of -Way Use ❑ Other Part 2 PROJECT LOCATION AND DESCRIPTION Project Name !0x) DDES Permit # Location Township z Range SectionE Site Address 530 Part 4 OTHER REVIEWS AND PERMITS ❑ DFW HPA ❑ Shoreline ❑ COE 404 Management ❑ DOE Dam Safety ❑ Structural ❑ RockeryNault/ FEMA Floodplain ❑ ESA Section 7 ❑ COE Wetlands ❑ Other Part 5 PLAN AND REPORT INFORMATION Technical Information Report Site Improvement Plan (Engr. Plans) Type of Drainage Review (jO Targeted / Type (circle one): F dified / (circle): Large Site mall Sit Date (include revision %4-d5'a Date (include revision /41;�-�5-0 dates): dates): Date of Final: Date of Final: Part 6 ADJUSTMENT APPROVALS Type (circle one): Standard 1 omplex / Preapplication / Experimental 1 Blanket Description: (include conditions in TIR Section 2) Date of Approval: 2005 Surface Water Design Manual 111105 1 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 7 MONITORING REQUIREMENTS Monitoring Required: Yes No Start Date: 41s1 Completion Date: Part 8 SITE COMMUNITY AND DRAINAGE BASIN Community Plan : Special District Overlays: _ Drainage Basin: Stormwater Requirements: •'C Soil Type Slopes M.e- 14LA ❑ High Groundwater Table (within 5 feet) ❑ Other ❑ Additional Sheets Attached Describe: / I E: �l-rr-.~Ysa ❑ Sole Source Aquifer ❑ Seeps/Springs 2005 Surface Water Design Manual 1/1105 2 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 11 DRAINAGE DESIGN LIMITATIONS REFERENCE ❑ Core 2 - Offsite Analysis ❑ Sensitive/Critical Areas ❑ SEPA ❑ Other Ll i ❑ Additional Sheets Attached LIMITATION / SITE CONSTRAINT ore.4/n4vs Alle lrcl Part 12 TIR SUMMARY SHEET(provide one TIR Summary Sheet per Threshold Discharge Area Threshold Discharge Area: name or description) Gore Requirements (all 8 apply) Discharge at Natural Location Number of atural Discharge Locations: Offsite Analysis Level: 1 2 13 dated: /D 7- Flow Control Level: 1 2 / 3 or Exemption Number Z Incl. facility summary sheet Small Site BMPs Conveyance System Spill containment located at: 0-16 Erosion and Sediment Control ESC Site Supervisor: fc U r'/ Contact Phone: 2UG - 6&51 After Hours Phone: Maintenance and Operation Responsibility: rivate Public If Private, Maintenagw Log Required: Yes / No Financial Guarantees and Provided: (Yes )/ No Liability Water Quality Type: asic Sens. Lake / Enhanced Basicm / Bog (include facility summary sheet) or Exemption No. / Landscape Management Plan: Yes / No Special Re uirements as applicable) Area Specific Drainage Type: CDA / SDO / MDP / 8P / LMP / Shared Fac. / None Requirements Name: Floodplain/Floodway Delineation Type: Major / Minor / Exemption None I00-year Base Flood Elevation (or range): Datum: Flood Protection Facilities Describe: Source Control Describe landuse: AA F (comm./industrial landuse) Describe an structural controls: Y �� r � 2005 Surface Water Design Manual 3 111105 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Oil Control High -use Site: Yes No Treatment BMP: D L Maintenance Agreement: jD No with whom? Other Drainage Structures Descrlbe: /r_ /C A�`�s Part 13 EROSION AND SEDIMENT. CONTROL REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION clearing Limits 9 tabilize Exposed Surfaces IJ over Measures LT Perimeter Protection Remove and Restore Temporary ESC Facilities Clean and Remove All Silt and Debris Ensure �raffic Area Stabilization Operation of Permanent Facilities Isediment ❑ Flag Limits of SAO and open space Retention preservation areas urface Water Control❑Other kDust Control La"Construction Sequence Part 14 STORMWATER FACILITY DESCRIPTIONS Note: Include Facility Su mary and Sketch Flow Control Type/Description Water Quality Type/Description ❑ Detention ❑ Infiltration ❑ Regional Facility ❑ Shared Facility ❑ Small Site BMPs ❑ Other ❑ Biofiltration ❑ Wetpool ❑ Media Filtration 0/Oil Control/yJQz-,r��l�c Spill Control ❑ Small Site BMPs ❑ Other f 2005 Surface Water Design Manual 111105 4 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL STORM WATER FACILITY SUMMARY SHEET DDES Permit Number (provide one Stormwater Facility Summary Sheet per Natural Discharge Location) Overview: Project Name &7N7o E Downstream Drainage Basins Major Basin Name d ftkl-J4A415W iC/vee5 Immediate Basin Name Flow Control: Flow Control Facility Name/Number- e2e -r'el Facility Location If none, Flow control provided in regiond facility (give location) No flow control required Exemption number Z General Facility Information: Type/Number of detention facilities: ponds vaults tanks Control Structure Location Type of Control Structure Size of Orifice/Restriction: No. 1 No. 2 No. 3 No. 4 Flow Control Performance Standard Live Storage Volume Number of Acres Served Number of Lots Type/Number of infiltration facilities: ponds tanks trenches Depth lz� -45 67 Number of Orifices/Restrictions Volume Factor of Safety Dam Safety Regulations (Washington State Department of Ecology) Reservoir Volume above natural grade Depth of Reservoir above natural grade Facility Summary Sheet Sketch All detention, infiltration and water quality facilities must include a detailed sketch. (11 "x17" reduced size plan sheets may be used) 2005 Surface Water Design Manual 1/1/05 1. KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL Water Quality: X r /74'0-/ Type/Number of water quality facilitiesBMPs: biofiltration swale sand filter (basic or large) (regular/wet/ or continuous inflow) sand filter, linear (basic or large) combined detentionlwetpond sand filter vault (basic or large) (wetpond portion basic or large) sand bed depth (inches) combined detentionlwetvault stormwater wetland filter strip flow dispersion farm management plan landscape management plan oil/water separator (baffle or coalescing plate) Z catch basin inserts: Manufacturer storm filter wetpond (basic or large) wetvault Is facility Lined? If so, what marker is used above Liner? pre -settling pond pre -settling structure; Manufacturer high flow bypass structure (e.g., flow-splitter catch basin) source controls Design Information Water Quality design flow Water Quality treated volume (sandfilter) Water Quality storage volume (wetpool) Facility Summary Sheet Sketch All detention, infiltration and water quality facilities must include a detailed sketch. (I1"x17" reduced size plan sheets may be used) 111105 2005 Surface Water Design Manual 2 a The Green/Duwamish River sr.lne Duwamish Estuary 5ubwatershed Watershed If IT I I SITE �u 1..1uld ¢. Suid[ II Golrtrs}/ I Middle Green River Mb _ 5u6watershed Lower Green River ti.tWatershed Boundary Subwatershed� ., ,. - 1"i,� u..,.,,:,r,:,•. Basin Boundary River N - Major Road - - Open Water 0 Mny 2Opb Upper King County Produced by: Green River $ubwatershed Department of Natural Resources and Parks Department of Natural Resources and Parks,WLRD, G;S, Visual Communications & Web Unit Water and Land Resources Division File Name: 0605greenbase sk VlGr &F, -1 E3RA, Inc. 530 SHATTUCK AVE S PROPERTY SOILS MAP FIGURE P.0 Box 44890 4 Tacoma, WA 98444 RENTON, WASHINGTON APPENDIX A CITY OF RENTON MAPS C�� • �. mil_-- � � � �. a I OKI .77 1p !tN-- lk 01019I MM ETil`lIV I1_1:N w: r i1;��►��IM��akTAFA MADFAAM0 AM� MERCER_=___;____` ISLAND NEWCAS I r KIM A III011�� -OWNrl �� J1 tR IEni le�wy KENW PANTHER LAKE f 0 196 Pressure Zane 495 Pressure Zone CITY OF RENTON 270 Pressure Zane F- 565 Pressure Zone Comprehensive Water System. Plan 1 Ts 300 Pressure Zone 590 Pressure Zane Figure No. 1 320 Pressure Zone ® Metered Intertie EXISTING WATER SYSTEM 350 Pressure Zone .0 PRV Station 370 Pressure Zone 0 Distribuli4nSys— U [-_-- 435 Pressure Zone TILITYSYSTEW 0 1500 0000 W at- Q�Ty SamPLng Point •I� Pw+++rex.r�-s?,�„,�„ 490 Pressure Zone Municipal Boundaries 1:16,000 Pin0e0 May 20U5 APPENDIX B HYDROLOGY w sf 3f 10 0 a. 120. 240. 360. 480. 600. 720. Flour U- U 1C U N r-1 10 Return Period 2 5 10 20 50 100 1 2 5 10 20 30 40 5p 60 70 80 90 95 98 99 Cumulative Probability I APPENDIX C SPILL RECORD SHEET Description I Response Procedure Date Location Type of Quantity Source Reason for Amount of Material No Preventive Measure Taken (as Material , if Spill/Leak Material longer (month/day/yea indicated Known Recovered exposed to r) on site Stormwater map) I I I I I (Yes/No) 2005 Surface Water Design Manual (CSWPP Forms) Page 1 APPENDIX D MAINTENANCE MANUAL AND SUMMARY APPENDIX D MAINTENANCE MANUAL AND SUMMARY POLUTION SOURCE CONTROL PROGRAM What are pollution source controls and why are they needed? Pollution source controls are actions taken by a person to reduce the amount of pollution reaching the surface and groundwater. Controls, also called "best management practices" (BMPs). For this site_ we recommend that the owners prevent any oils or grease from entering the system. It is also recommended that any oil spills or other chemical spills be cleaned up immediately and any contaminated water should be prevented from entering the tank system to the extent practicable. By preventing any pollutants form entering the system. they will be protecting the environment and the drinking water supply. . Most pollution sources in residential projects are from vehicles. It is recommended that regular maintenance be performed on any vehicles that will be kept on site to prevent any unnecessary fluid leaks. Any washing of vehicles or driving surfaces should not be directed into the storm system. The oil/water separators are a means to help mitigate pollutants from entering the stormwater system but a much better means of prevention is to not let the pollutants enter the system at all. D-1 Stormwater Maintenance Manual Renton Triplexes 530 Shattuck Ave S Renton, Washington Prepared By E3RA, Inc 9802 291h Ave W, #13102 Everett, WA 98204 425-356-3372 D-2 Manual Purpose: The purpose of this manual and the enclosed inspection sheets is to provide a maintenance plan to ensure the continued proper operation of all stormwater facilities associated with your property. Lack of maintenance could lead to local flooding, water damage, and costly repairs or replacements of these or other infrastructure. Proect Description: The stormwater system that serves this site was designed to accommodate 7,400 square -feet of roof and driveway runoff. Stormwater System Description: The stormwater system consists of the following items that are labeled on the enclosed site drawing with the following symbols: CB: Catch Basin Type 1 (See Attached Details) OW: OiUWater Separator (See Attached Details) Maintenance Intervals: CB: Twice per year (April and September are recommended) OR Quarterly and after each oil spill Proiect Construction information: Installation Contractor: Name: Address: Phone: Date of Construction: Average annual cost estimate of maintenance: $100/yr D-3 ATTACHMENT "A" (CONTINUED) 421 - Maintenance Checklist for Grounds (Landscaping) Date J J ✓ ✓ Frequency Drainage Problem Conditions to Check For Conditions That Should Exist System Feature M General Weeds (nonpoisonous) Weeds growing in more than 20% Weeds present in less than of the landscaped area (trees and 5% of the iandscaped area. shrubs only). Ni General insect hazard Any presence of poison ivy or other No poisonous vegetation or poisonous vegetation or insect insect nests present in nests. lanscaped area. M's General Trash or litter See Ponds Checklist. See Ponds Checklist. M's General Erosion of Ground Noticeable rills are seen in Causes of erosion are Surface landscaped areas. identified and steps taken to slow dcwnlspread out the water. Eroded areas are filled, contoured, and seeded. A Trees and Damage Limbs or parts of trees or shrubs Trim trees/shrubs to restore shrubs that are split or broken which affect shape. Replace treeslshrubs more than 25% of the total foliage with severe damage. of the tree or shrub. M Trees and Damage Trees or shrubs that have been Replant tree, inspecting for shrubs blown down or knocked over, injury to stem or roots. Replace if severely damaged. A Trees and Damage Trees or shrubs which are not Place stakes and rubber - shrubs adequately supported or are leaning coated ties around young over, causing exposure of the roots. trees/shrubs for support. If you are unsure whether a problem exists, please contact a Professional Engineer. (M) Monthly from November through April. (A) Once in late summer (preferable September) (S) After any major storm (use 1-inch in 24 hours as a guideline). J-57 Ordinance No. 2003-121s ATTACHMENT "A" (CONTINUED) #5 - Maintenance Checklist for Catch Basins Date Frequency Drainage Problem Conditions to Check Fer Conditions That Should System r Exist Feature enera "Dump no pollutants ° Stencil or stamp should be Warning signs (e.g., Stencil or stamp not visible and easily read Dump No Waste -Drains to visible Stream") shalt be painted or embossed on or adjacent to all storm drain inlets. Ueneral Trash & Trash or debris which is located No trash or debris located Debris immediately in front of the catch immediately in front of basin opening or is blocking catch basin or on grate inletting capacity of the basin by opening. more than 10%. 6eneral Trash & Trash or debris (in the basin) No trash or debris in the Debris that exceeds 60 percent of the catch basin. sump depth as measured from the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of six inches clearance from the debris surface to the invert of the lowest i e. General 1-4 s, i. + --A +i + ,i IF— ' J-33 Ordinance No. 20 03 -12 1 s 1-9 equerncy Drainage , Problem Conditions to Check For Concitions Tha: ShoJJ System ✓ Exist Feature enera Fractures w Cracks in Grout fillet has separated or Pipe is regrouted and Basin Walls/ Bottom cracked wider than 1/2 inch and secure at basin wall. longer than 1 foot at the joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. A settlemeny if failure of basin has created a Basin replaced or repairedMisalignment ;:enera, safety, function, or design to design standards. nera -ege a ion Vegetation growing across and No vegetation blocking blocking more than 10% of the opening to basin. basin openinq. ivi uenerai Vegetation growing in No vegetation or root inlet/outlet pipe joints that is growth present. more than six inches tall and less than six inches a art. ffvegetat�cn amnia ion an Any evidence of oil, gasoline, Generalution o con aminan s or pollutants present. contaminants or other poliutants (Coordinate removal/cleanup with local water quality Catch Cover Not in Place Cover is missing or only Any open catch basin Basin partially in place. requires maintenance. Catch basin cover is closed. Locking Mechanism Mechanism cannot be opened Mechanism opens with Not Working by one maintenance person proper tools. with proper tools. Bolts into frame have less than 112 inch of thread. in Cover Difficult to One maintenance person Cover can be removed by Remove cannot remove lid after applying one maintenance person. normal lifting pressure. (intent is keep cover from sealing offaccess to maintenance.Ladder Rungs Unsafe Ladder is unsafe due to missing Ladder meets design rungs, not securely attached to standards and allows basin wall, misalignment, rust, maintenance person safe cracks, or sharp edges_ access. Grates Grate opening Grate with opening wider than Grate opening meets Unsafe 718 inch. des i n standards. Grates Trash & Trash and debris that is Grate free of trash and Debris blocking more than 20% of debris. rate surface inletting ca acit _ Grates Damaged or Grate missing or broken Grate is in place and meets Missinq. member(s) of the grate. design standards. If you are unsure whether a problem exists, please contact a Professional Engineer Key: (M) Monthly from November through April. (A) Once in fate summer (preferable September) (S) After any major storm (use 1-inch in 24 hours as a guideline). J-34 Ordinance No. 2003-121 s APPENDIX E INSPECTION SHEDULE APPENDIX E INSPECTION SCHEDULE INSPECTION SCHEDULE It is recommended that E3RA Inc. be called to inspect if adverse conditions are encountered during the installation of the drainage system. We also recommend that E3RA be retained to perform a final inspection on the drainage system prior to the system being backfilled to verify correct installation. E3RA will be on call as needed but we do not anticipate the need for a regular inspection schedule. We recommend that the BMP's be inspected after heavy rain events and as a minimum once a week during dry weather to insure proper performance. This inspection can be performed by the project contractor. E3RA Inc. 253-537-9400 425-356-3372 Robert Elsip, PE Casey Lowe, E.I.T. E-1 APPENDIX F BOND ESTIMATE Site Improvement Bond Quantity Worksheet Web date: 11/21/2005 * King County Department of Development & Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 For alternate formats, call 206-296-6600. 206-296-6600 TTY 206-296-7217 Project Name: Renton Duplexes Date: 10/5/2007 Location: 530 Shattuck Ave S. Renton. WA Clearing greater than or equal to 5,000 board feet of timber? yes If yes, Forest Practice Permit Number: (RCW 76,09) Page 1 of 9 li-wks-sbgl X no Project No.: Activity No.: T07250 Note: All prices include labor, equipment, materials, overhead and profit. Prices are from RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Web date: 11121/2005 R?re6c...<.....'; Mw T: 2� Backfill & compaction -embankment ESCA $ 5,62 CY Check dams, 4" minus rock ESC-2 SWDM 5.4.6.3 $ 67.511 Each Crushed surfacing 1 1/4" minus ESC-3 WSDOT 9-03.9(3) $ 85.45 CY Ditching ESC-4 $ 8,08 CY .Excavation -bulk ESC-5 $ 1.50 CY 10 1 15 Fence, silt ESC-6 SWDM 5.4.3.1 $ 1.38 LF 400 1 552 Fence, Temporary (NGPE) ESC-7 $ 1.38 LF Hydroseeding ESC-8 SWDM 5A,2.4 $ 0.59 SY 270 1 159 Jute Mesh ESC-9 SWDM 5.4.2.2 $ 1.45 SY Mulch, by hand, straw, 3" deep ESC-10 SWDM 5.4.2.1 $ 2.01 SY Mulch, by machine, straw, 2" deep ESCA 1 SWDM 5,4.2.1 $ 0.53 Sy Piping, temporary, CPP, 60' ESCA 2 $ 10.70 LF Piping, temporary, CPP, 8" ESC-13 $ 16.10 LF Piping, temporary, CPP. 12" ESC-14 $ 20.70 LF Plastic covering, 6mm thick, sandbagged ESC-15 SWDM 5.4.2.3 $ 2.30 SY 50 1 115 Rip Rap, machine placed, slopes ESCA 6 WSDOT 9- 1 & 1 (2) $ 39.08 CY Rock Construction Entrance, 50'x15'x1' ESCA 7 SWDM 5.4-4.1 $ 1,464.34 Each 1 1 1464 Rock Construction Entrance, 100'x15'x1' ESCA 8 SWDM 5.4.4.1 $ 2,928.68 Each Sediment and riser assembly ESCA 9 SWDM 5,4.5.2 $ 1,949.38 Each Sediment trap, 5' high berm ESC-20 SWDM 5.4.5.1 $ 17.91 LF Sed, trap, 5' high, riprapped spillway berm section ESC-21 SWDM 5.4.5.11 $ 68-54 LF Seeding, by hand Soddin2. 1" deep, level ground ESC-22 SWDM 5.4.2.4 $ 0.51 SY ESC-23 SWDM 5.4,2.5 $ 6.03 SY Sodding, 1" deep, sloped ground ESC-24 SWDM 5A.2.5 $ 7.45 SY TESC Supervisor ESC-25 $ 74.75 HR 1 20 1495 Water truck, dust control ESC-26 SWDM 5.4.7 $ 97.75 HR Each IL ESC SUBTOTAL: $ 3,800,64 30% CONTINGENCY & MOBILIZATION: $ 1,140.19 ESC TOTAL: $ 4,940.83 COLUMN: A Page 2 of 9 Unit prices updated: 02/12/02 Version: 04122/02 li-wks-sbql Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Web date: 11/21/2005 Backfill & Compaction- embankment GI- $ 5.62 CY Backfill & Compaction- trench GI-2 $ 8.53 CY 10 85,30 Clear/Remove Brush, bY hand GI - 3 $ 0.36 SY Clearin /Grubbin FTree Removal GI - 4 $ 8,876,16 Acre Excavation - bulk GI - 5 $ 1.50 CY 10 15.00 Excavation - Trench GI - 6 $ 4.06 CY 10 40.60 Fencing, cedar, 6' hi h GI -7 $ 18.55 LF Fencing, chain link, vinyl coated, 6' hi hIGJ GI - 8 $ 13.44 LF Fencing. chain link, ate, vinyl coated, 2GI - 9 $ 1,271.81 Each Fencing, split rail, 3' hi h GI - 10 $ 12.12 LF Fill & compact - common barrow - 11 $ 22.57 CY 10 225.70 Fill & compact - gravel base GI - 12 $ 25.48 CY Fill & compact - screened topsoil GI - 13 $ 37.85 CY Gabion, 12" deep, stone filled mesh GI - 1 $ 54.31 SY Gabion, 18" deep, stone filled mesh GI - 15 $ 74.85 SY Gabion, 36" deep. stone filled mesh Gl - 16 $ 132.48 SY Grading, fine, by hand GI - 17 $ 2.02 SY 100 202.00 Gradin , fine, with grader GI - 18 $ 0.05 SY Monuments, 3' long GI - 19 $ 135.13 Each Sensitive Areas Sin GI - 20 $ 2.88 Each 5oddin , 1" deep, sloped ground GI - 21 $ 7,46 SY Surveying, line & grade GI - 22 $ 788.26 Day 1 788.26 Surveying, lot location/lines GI - 23 $ 1,556,64 Acre Traffic control crew ( 2 flaggers) GI - 24 $ 85.18 HR 12 1,022.16 Trail, 4" chipped wood GI - 25 $ 7.59 SY Trail, 4' crushed cinder GI - 26 $ 8.33 SY Trail, 4im course GI - 27 $ 8.19 SY Wall, retaining, concrete 44.16 SF Wall, rockery IGI - 29 $ 9.49 1 SF Page 3 of 9 SUBTOTAL 85.30 2.2933.72 Unit prices updated: 02112/02 *KCC 27A authorizes only one bond reduction. Version: 4/22/02 li-wks-sbgi Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Webdale: 11Y2112005 ......... . ..................... ....... WNW! i .. -41 3" AC Grinding, 4 wide machine < 1000sy RI - 1 $ 23.00 SY AC Grinding, 4 Mcle machine 1000-200C RI -2 $ 5.75 SY AC Grinding, 4 wide machine > 2000U R1 - 3 $ 1.38 SY AC Removal/DisposallRepair RI-4 $ 41.14 SY 28 1,151.92 Barricade, type I Rl - 51 $ 30.03 LF Barricade, typ2 III ( Permanent) Rl -61 $ 45.05 LF Curb & Gutter, rolled Rl - 7 1 $ 1127 F LF Curb & Gutter, vertical RI -8 $ 9,69 LF Curb and Gutter, demolition and disposal RI -9 $ 13.58 LF Curb, extruded as halt RI - 10 $ 2.44 LF Curb, extruded concrete Rl - 11 $ 2.56 LF Sawcut, asphalt, 3" depth RI - 12 $ 1.85 LF 100 185.00 Sawcut, concrete, per 1" depth R1 - 13 $ 1.69 LF Sealant, asphalt RI - 14 $ 0.99 LF 100 99.00 Shoulder, AC, ( see AC road unit price ) R1 - 15 $ - SY Shoulder, gravel, 4" thick Rl - 16 $ 7.53 SY Sidewalk, 4' thick Rl - 17 $ 30,52 SY 1 M52 Sidewalk, 4" thick, demolition and disposi R1 - 18 $ 27.73 SY 1 27.73 Sidewalk, 5" thick RI-19 $ 34.94 SY Sidewalk, 5" thick, demolition and dispow R1 - 20 $ 34.65 SY Si nhandicap _ RI - 21 $ 85.28 Each Striping, per stall RI -22 $ 5.82 Each Striping, thermoplastic, ( for crosswalk) Rl -23 $ 2,38 SF Striping, 4!' reflectorized line JRI -241 $ 0, �2� L �F Page 4 of 9 SUBTOTAL 1,494.17 Unit prices updated: 02/12/02 *KCC 27A authorizes only one bond reduction. Version: 4/22102 I!-wks-sbql Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Web date: 41/2112005 M. 'M sx-x -es 2" X X.. For KCRS'93, (additional 25'base) add IRS - I I $ 3.60 SY AC Overlay, 1.5" AC RS - 21 $ 739 SY AC Overlay, 2" AC RS - 31 $ 8.75 SY AC Road, 2", 4" rack, First 2500 SY RS-4 $ 17.24 SY AC Road, 2", 4�' rock. Qty. over 25008Y RS-5 $ 13.36 SY 100 1,336.00 AC Road, 3', 4' rock, First 2500 SY IRS - 5 $ 19.69 SY AC Road, 3", 4" rock, Qty. over 2500 SY RS-7 $ 15,81 SY AC Road, 5", First 2500 SY RS-8 $ 14.57 SY AC Road, 5", Qty. Over 2500 SY RS-9 $ 13.94 SY AC Road, 6", First 2500 SY RS-1( $ 16.76 SY AC Road, 6", City. Over 2500 SY RS-11 $ 16.12 SY Asphalt Treated Base, 4" thick RS - 1 $ 9.21 SY Gravel Road, 4' rock, First 2500 SY RS - 1,-: $ 11.41 SY Gravel Road, 4!' rock, Qty. over 2500 SY RS - 14 $ 7.53 SY PCC Road, 5", no base, over 2500 SY RS - 1r, $ 21.51 SY PCC Road, 6", no base, over 2500 SY IRS - 1 $ 21.87 SY Thickened Edge RS - 17 $ 6,89 LF Page 5 of 9 SUBTOTAL 1,336.00 Unit prices updated: 02/12102 *KCC 27A authorizes only one bond reduction. Version: 4/22/02 li-wks-sbql Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Web date: 1112112005 .. .. . ..... xX I ............ As, ......... ...... . ........ tr x, x Access Road, MD 1) - 1 $ 16.74 SY Bollardr, - fixed D-2 $ 240.74 Each Bollards - removable D - 3 $ 452.34 Each * (CBs include frame and lid) CB Typel D-4 $ 1,257.64 Each 3 3,772.92 CB Type IL D - 5 $ 1,433.59 Each CB Type il, 48" diameter D - 6 $ 2,033.57 Each for additional depAh over 4' D - 7 $ 436.52 FT CB Type 11, 54'diameter D - 8 $ 2,192.54 Each for additional depth over 4' D - 9 $ 486.53 FT C13 Type 11, 60" diameter D - 10 $ 2,351.52 Each for additional depth over 4 D-11 $ 536.54 FT CB Type 11, 72" diameter D - 12 $ 3,212,64 Each for additional depth over 4 D-13 $ 692,21 FT Through -curb Inlet Framework (Add) D - 14 $ 366.09 Each Cleanout, PVC, 4' D - 15 $ 130.55 Each Cleanout, PVC, 6' D - 16 $ 174.90 Each Cleanout, PVC, F D - 17 $ 224.19 Each Culvert, PVC, 4" D - 18 $ 8.64 LF Culvert, PVC, 6" D - 19 $ 12.60 LF Culvert, PVC, 8' D - 20 $ 13.33 LF Culvert, PVC, 12" D - 21 $ 21-77 LF Culvert, CMP, 8" D - 22 $ 17.25 LF Culvert, CMP, 12" D - 23 $ 26.45 LF Culvert, CMP, 15" D - 24 $ 32.73 LF Culvert, CMP, 18" D - 25 $ 37.74 LF Culvert, CMP, 24" D - 26 $ 53.33 LF Culvert, CMP, 30" D - 27 $ 71.45 LF Culvert, CMP, 36" D - 28 $ 112-41 LF Culvert, CMP, 48" D - 29 $ 140.83 LF Culvert, CMP, 60" D - 30 $ 235-45 LF Culvert, CMP, 72" D - 31 $ 302,58 LF Page 6 of 9 SUBTOTAL *KCC 27A authorizes only one bond reduction. li-wks-sbql 3,772.92 Unit prices updated: 02/12102 Version: 4/22/02 Report Date: 10/1712007 Site Improvement Bond Quantity Worksheet Web date: 11121/2005 Culvert, Concrete, 8" 1 D - 32 $ 21.02 LF Culvert, Concrete, 12" D - 33 $ 30.05 LF Culvert, Concrete, 15" D - 34 $ 37.34 LF Culvert, Concrete, 18" D - 35 $ 44.51 LF Culvert, Concrete, 24' D - 36 $ 61.07 LF Culvert, Concrete, 30" D - 37 $ 104.18 LF Culvert, Concrete, 36" D - 38 $ 137.63 LF Culvert, Concrete, 42" D - 39 $ 158.42 LF Culvert, Concrete, 48" D - 40 $ 175.94 LF Culvert, CPP, 6" D - 41 $ 10.70 LF Culvert, CPP, 8" D - 42 $ 16,10 LF Culvert, CPP, 12" D - 43 $ 20.70 LF Culvert, CPP, 15" D - 44 $ 23.00 LF Culvert, CPP, 18" D - 45 $ 27.60 LF Culvert, CPP, 24" D - 46 $ 36,80 LF Culvert, CPP, 30" ❑ - 47 $ 48.30 LF Culvert, CPP, 36" D -48 $ 55.20 LF Ditchin D - 49 $ 8.08 CY 150 1212 Flow Dispersal Trench 1,436 base+ D - 50 $ 25.99 LF French Drain 3' deth D - 51 $ 22.60 LF Geotextile, laid in trench, polypropylene D - 52 $ 2.40 SY Infiltration pond testing D - 53 $ 74.75 HR Mid -tank Access Riser, 48" dia, 6 deep D - 54 $ 1.605.40 Each Pond Overflow Spillway ❑ - 55 $ 14,01 SY Restriclor/Cil Separator, 12" D - 56 $ 1,045.19 Each Restrictor/Oil Separator, 15" 0 - 57 $ 1,095.56 Each RestrictorlOil Separator, 18" 0 - 58 $ 1,146.16 Each RI ra laced D - 59 $ 39.08 CY Tank End Reducer 36" diameter D - 60 $ 1,000.50 Each Trash Rack, 12" D - 61 $ 211.97 Each Trash Rack, 15" D - 62 $ 237.27 Each Trash Rack, 16' D - 63 $ 268,89 Each Trash Rack, 21" D - 64 $ 306.84 Each Page 7 of 9 SUBTOTAL 1212 Unit prices updated: 02/12/02 'KCC 27A authorizes only one bond reduction. Version: 4/22/02 li-wks-sbgl Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Web date: 1112112005 z x? R M Rr - ge. :-, Aaaj,43, 72, R"7737 E ff T No. 2" AC, 2" to course rock a q, borrow PL-1 $ 15.84 Sy 2" AC, 1.5" to course & 2.5" base cour PL - 2 $ 17.24 SY 260 4482.4 4" select borrow PL-3 $ 4.55 SY 1.5" to course rock & 25'base course PL - 41 $ 11.41 SY (Such as detention/water quality vaults,) No. wl-1 Each WI-2 Each WI-3 CY WI-4 LF WI-5 FT wl -6 Each Wl -7 .WI-8 IWI-9 SUBTOTAL 4,482.40 SUBTOTAL (SUM ALL PAGES): 30% CONTINGENCY & MOBILIZATION: GRAN !}TOTAL: COLUMN: Page 8 of 9 B 7,397.87 2,219.36 9,617.23 C 7,278.54 2,183.59 9,462.23 E Unit prices updated: 02112102 *KCC 27A authorizes only one bond reduction. Version: 4122102 li-wks-sbql Report Date: 10/17/2007 Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: _ Robert ElsV PE Registration Number: 25368 Firm Name: E3RA Inc. Web date: 11/2112005 Date: 8/15/2007 Tel. #: 425-356-3372 Address: 9802 29th Ave W Ste B-102, Everett, WA Project No: T07250 ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS Stabilization/Erosion Sediment Control (ESC) Existing Right -of -Way Improvements Future Public Road Improvements & Drainage F Private Improvements Calculated Quantity Completed Total Right -of Way and/or Site Restoration Bond*r* (First $7,500 of bond* shall be cash.) Performance Bond* Amount (A+B+C+D) = TOTAL Reduced Performance Bond* Total *** Maintenance/Defect Bond* Total NAME OF PERSON PREPARING BOND* REDUCTION: PERFORMANCE BOND* AMOUNT (A) $ 4,940.8 (B) $ 9,6172 (C) $ (D) $ 9,462.2 (A+B) $ 14,558.1 (T) $ 24,020.3 Minimum on amount is $1000. Casey Lowe BOND* AMOUNT REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY *** T x 0.30 $ 7,206.1 OR (T-E) $ 24,020.3 Use larger of Tx30%or Date: PUBLIC ROAD & DRAINAGE MAINTENANCE/DEFECT BOND* (B+C) x 0.25 = $ 2,404.3 10/5/2007 NOTE: The word "bond" as used in this document means any financial guarantee acceptable to King County. ** NOTE: KCC 27A authorizes right of way and site restoration bonds to be combined when both are required. The restoration requirement shall includethe total cost for all TESC as a minimum, not a maximum. In addition, corrective work, both on- and off -site needs to be included. Quantities shall reflect worse case scenarios not just minimum requirements. For example, if a salmonid stream may be damaged, some estimated costs for restoration needs to be reflected in this amount. The 30% contingency and mobilization costs are computed in this quantity. *** NOTE: Per KCC 27A, total bond amounts remaining after reduction shall not be less than 30% of the original amount (T) or as revised by major design changes. SURETY BOND RIDER NOTE: If a bond rider is used, minimum additional performance bond shall be $ 9,462.2 (C+D)-E REQUIRED BOND* AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY DDES Page 9 of 9 Unit prices updated: 02/12/02 Check out the DDES Web site at www.meltrokc. av/ddes Version: 4/22/02 li-wks-sbgl Report Date: 10/17/2007 APPENDIX G REFERENCES APPENDIX G REFERENCES 2005 King County Surface Water Design Manual + Site Plan transmitted to E3RA by Victor Phan • City of Renton Web Site • City of Renton water and storm line information obtained from City Hall G-1 APPENDIX H GRADING AND DRAINAGE PLAN APPENDIX H GRADING AND DRAINAGE PLAN (Permanent Stormwater Control Plan) • Title, Index, and Location Map • Drainage, Grading, and Notes 0 TESC Plan * Water Service and Fire Plan • Details and Notes a Sanitary Sewer Plan • Landscape Plan • Landscape Details H-1 a x N TALBDT RD S 405 YFCINITY HAP NTS Two Triplexes 530 Shattuck Avenue South Renton, Washington Prepared For: Victor Pham 201 Valley Ave Puyallup, Washington 206-778-6859 Sheet Index Sheet Number Sheet Title 1 Title, Index, and Location Map 2 Drainage, Grading Plan, and Notes 3 Temporary Erosion and Sediment Control Plan and Notes 4 Water Service and Fire Plan 5 Details and Notes 6 Sanitary Sewer Plan 7 Landscape Plan 8 Landscape Details No. Date Revision E3RA ,no. 9802 29th Ave. W. Suite B102 Everett, WA 98204 425-356-3372 425-356-3374fax www.e3ra.com 98371 CHECKED FOR COMPLIANCE TO CITY STANDARDS Date Elate Date PROJECT: Renton Triplexes HenWn, WA SHEET TITLE: T'die, bdaB . 8nd Location Map DESIGNER: CRL JO8NaT07250 DRAM BY. CRL SCALE: CHECKED 9Y: RCE __ SHEET: 1 of 8 DATE: 10/24107 FILE: ohrenL[ E,------------- TrHESE NOTES SHALL APPEAR ON PROJECTS FOR TI-E SURFACE WATER UTILITY. II I I ij j 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A ff I L I LO PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON PLAN C%f RENEWER. 2. Al construction shall be in accordance with the 1995 Standard Specifications for F Rood. Bridge and Municipal Constructim prepared by HSDOT and the American Public Works Associ Ubm (APWA), as amended by the City of Renton Public Works I Ili I �--,I Department. 33 3 The surface water drainage system shall be constructed according ka the it approved plans, which ore on file in the Public works Department. Ary deviation from the approved plops wilt require written approval from the City of Renton Public vI U) works Department, Surface Water Utility Section. , X4. A copy of these approved plans meet be an the job site whenever construction is f 3 a t i F j , k.- +� W in progress. 1 s „ _ ..... tf .. z f e j q` — I 5. Datum shall be NAVB 88 un7esa otherwise aPRroved by the City of Renton Public i6`' / 7 o „_.. 588'481rE 719.i8� ..... Ir} w ❑ Works Deparimenk_ Reference benchmark and elava{ions are noted on the Diana, � I I� �: � 3 ❑ 6. Alt sedimedtolion/erosion facilities must be In operation prior to clearing and + j a I building eonsiruatim, and they must be satisfactorily maintained until construction is r I 4 : - - _ _._ .. _ _ _ _ _ _ _ _ _ _ _ _ __- _ ------- z completed and the potential for on-sU erosion has passed. x k O7. All retention/detenflon facilities must be installed and in operation prior to or it z canp.,rction with ill construction actil4ty unless otherwise oPplomd by Lhe Public Works Department. Surface Water Utillty Section H)i j _ I y 1 PROPOSED TRIPLu+t LU II E 8. Gross seed may be applied by hydroseeding. The grass seed mixture, other than a,, y I I City. of Renton approved standard mixes, shall be subritted by a Landscape a -I = approved by the Public Works Department, Surface Water Utility - C w - AfYhlteat and I � '. Section.- 9. All pipe and appurtenances shall be laid an c property prepared foundation in al D accordance with Sfs:Lon 7-02.3(1) of the curtest State of Washington Standard - Specificolion for Road and Bridge Construction. This shall include necessary leveling of the trench bottom or the top of the foundation mnteriol, a well as Placement w- tl - --- =-- - - EECK and compoclion of required bedding material, to unfform grade so that the art" I f frl a length of the pipe will be supported an a unilartnly dens., unyielding box. All pipe bedding shall be APWA Gass 'C, with the exception of PVC pie. AD trench bockfilf shill be compacted to minimum 95% for pavement and structural fill and 90% % Alt �- otherwise per ASTM D-1557-10. Pea gravel bedding shall be 6 inches over and ''> - A under PVC pipe, J I 10, Galvanized steel pipe and durnni4ed steel pipe for all drainage futilities shall hove asphalt trectment #1 m better inside and outside. I Fl--- h 11. Structures shall not be permitted within tO feet of the spring line of any storm N 3 ! -- - 2 DECK 'I r- N drainage Pipe, or 15 feet from the top of any channel bank. I 4 , _ , - rrl I 12. AN catch basin grates shell be depressed CAO feeH blow pavement level- 7 I` t 13. Open cut road crossings through existing public right of way will not be allowed�I unless specifically approved by City of Renton Planning/Building/Public Works Administrator- PRDcOSED TRTPLEX T 14, tar suasion pratsatlon of roadside ditch". where raquirhall ad, sbe of sound Rock quarry rack pon paced to o depth of e (7) foot a<+d moat meet the following soecificailonr. 4 - 8 inch rock / 40 - 70% passing: $ - 4 inch rack / 30 - 40% Passing; and i1 less thou 2 inch rock / 10 - 20% Dossing. 15. All building downspouts and footing drains shill be connected to the sto— drainage eyafem, unless approved by the City Plan reviewer o- Surface Water Utility IY� Section- An accurately dlmensimed, certified as drawing of this drainage 16, jFB-23 f system will be submitted to the City upon compile{ion. t S 8BQ46'1tl, 16. Issuance of the building or eonstn+ction permits by the City of Renton does not relieve the owner of the continuing legal ebllgation d/or liablity connected with storm surface water disposition- Further, the City of Renton does not accept any obligation for the proper functioning and mointenanca of the system proNded during 1 - aonstractlon. 17, The Contractor snail be responsible for provid€ng adequate safeguard, safety devices, protective equipment, Ilaggers, and any other needed actions to protect the .` iii i r._ ;,F_ • I r: "' ' life, health, and safety of the public, and to protect property in connection with the performanere ce of work covered by the contract. Any work within the troweled right of way that may interrupt normal traffic flaw shall require a traffic con" plan approve by the Public Works Department, Transportation Systems Division. All onf ! sectis of the WSDOT Standard Spscilicotions 1-07--23 Traffic Control shall apply. 18. Speclal drainage measures will he required if the project location is within the jII f f + IO i] 10 20 aquifer protection area (APA), 1 w •I ® TYPE 1 C8 V/ OIL WATER SEPERATOR AMD GRATE ® 4' PVC CONIECTIMG TO Ill DDVNSPUUTS SCALE IN FEET I SEE STANDARD PLAN B012 � I i RE, 2WW (APPROXD4ATD @ SAW CUT 4' TRENCH DIE, 2E.40 12' ADS N-12 W REPLACE ASPHALT AND PAVE)UfT ® 64 LF 1�- ADS N-12 Y La3% MATCH EXISTING PRVENIENT SECTICIN PROPOSED ASPHALT AREA _ _ vWATER SEP........ ® RE, 25SD (APPRmallERAI� AND GitATE. e,�7E1' NOTE: %cW':r •(•1�.:..-, r 21A5 12' ADS tH12 E �. ev lE, 2M S' ADS M-12 E BOUNDARY AND TOPOGRAPHY ARE BASED ON f, ��?. ,�., LEGAL: 5Y1rTHERs SrH ADD TO RENTON ]Er 2I-S3 W AN N-12 E MA?PING PROVIDED TO E3RA BY DESIGNS LIMITED �'- LEr EL05 L2` ADS N-12 W AND OBSERVATIONS MADE IN THE FIELD- THE 4J a dD'i CHECKED FOR COMPLIANCE ;0 LF IV PVC t 113X INFORMATION SHOWN DOES NOT CONSTITt1TE A FIELD EXISTING 1MPERvTCUSE AREA 5 ti, Pch-rp TO CITY STANDARDS Q (GRAVEL) SURVEY BY E3RA. s'• ""' �7i TYPE L CB W/ SO-M CaVF72 Date 1E.' &3 a rP OP N TIDUD `--" Date X, 20A3 12r PCP H ff]RSTING, t:JILCI NOTE: Date LE, BL53 12' PVC E PROPOSE➢ IMPERVIOUS SURFACES NOTE- THIS SET OF PLANS SUPERCEEDS ALA PREVIOUS PLAN SETS ff, 2033 12' PCP S HE7QSTIYy CALM RODF-4,263 SQ-FT PaOJBCT: ne ion, Triplextss ® 9 LF 6' ADS 14-12 2 LAX KIN PAVEMENT-3,120 SD -FT No. Eats Revision By E3RA IOC- Renton, WA 1 C@MECTM TO Ill Aim FOOTING TOTAL NEW AND REPLACCU IMPERVIOUS SURFACE SHEET Drainage, Graal Plan, al SYSTEILS PROPOSED FOR THE SITE-7,403 SQ-FT 9802 29th AVe. W. n9 Coll 2 Working Doys Before You Dig Suite B102 t. ands 6 1F 6' ADS M-12 ! 1Ax M1M C&INNECTIfD TO � AND FOCTDIG EXISTING IMPERVIOUS SURFACES Everett, WA 98204 m - DRAtM SYSTEMS HOUSE-t,300 SQ-FT 1—800-424�-5555 425-356-3372 '4aret� a�� DESIGNER: CRL .roc No: T07250 ® 4- PERFDRATED FMTM DRAIN PIPE PARKING-500 SQ-FT Utilities Under round Location Center 425-356-3374fax ! fD.NAL p DRAWN BY: CRL SCALE: 1"=10' GARAGE-400 SO -FT g www.e3ra.com I, +1Uit7 rxCHECKED BY: RCE SHEET: 2 of 6 vwts Iynia DATE: 16/24N7 FILE: hrert.dwg O Erosion Control NotesLID 1 I '•, (I , THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS, SURFACE �� I O WATER UTILITY, WASTEWATER U'PUTY, WATER UTILITY, AND TRANSPORTATION PLANS: 13I ll' I T. BEFORE ANY CONSTRUCTION OR DE`rELCTPMETIT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST 8E HELD WITH THE CITY OF iENTON. PUBUC WORKS DESIGN EMpMEER. I r~1 I I os pmscr 2on preservation lbad an the 1 II €I N plan(s) shall be clearly flagged u, the field and observed during constructor.. All limits of clearing and areas of vegetati 3. All required sedimenlatim/erosion contrd facilities must be constructed and in U) operation prior to land c€eanng and/or construction to ensure that sediment laden s W water dam not inter the noturd dram e a kem. AI eroaim ono sediment a ag ys I r• facilities shall be maintained h a sotlsiaatory Oantlitlan until such time that clearing 1 l I F LLI and/or ,=wciinn is oomplefe and potential for on -sits erosion has passed. The __J implementation, maintenonce, replacement and eddtwns to efoawnfsed—ent.f— k6. i7-;7 control s tema shall he the re slbilit of the ermi,ee. System. span Y R 4. The erasion ant eedlmentalion control systems depicted on this drawing are iI'' ' • •--�-� or intended to be minimum requirements to meek onticipoted site conditions. As I , I • I I ZI coasfruc mn progresses and ..expected or seosonat conditions tllctate. the permitee a V fff j , I 1 II l Q = anticipate that more erosion and sediment. ion contrd lo" Ries .91 be eeeswry to ensure complete sitation control an the proposed site. During the a d f111 course of construction. it shall be the obligation end reWp ibII[ty of the permitee a n `-A z to address any new conditions that may be created 6y the octlwtlea and to provideLIA I y 3 f N x Protect additional adjacent s, pver and above quality r ementi s 6e needed, to i rents, drainage ale D - a [= prated adjacent properties and waterquality of the g ge system. S A rovol of this Ian is far erosi sedfro-tation contrd only, It does not l ?!I a j -.E _ mm _ PRf$r03ED 5*13CKPILE AREA constfuke an approval of at— drainage design. size nor I-otion of pipes, restrictors, channeis, or retention facil€ties. I ! I 6. areas greater than 5,000 square feet, that arDuring the time period of October ist through April 30th, all project distrlhuted D < I I 1 sail are to be left un-worked far more ac ca, I I e than 12 hours. shot be covered by mulch, sodding or plastic covering. k- wl� I - N I 3- fn any area which has been stripped of vegetation and ..hue no further work is �I u m# _� # Q 9 Q V 7 V 7 7 7 0 -7 I , anticipated for a period 30 days or more, all disturbed areas must be immediately 4 0 Q Q p Q; �; p 0- slobllized with mulching, grass planting of other approved erosion controt treatment i I lE appl-cable to the time o1 year. Grass seeding done W be acceptable —1y during � _ . . _ . — _� � -� I �_. v 9 v 0 � v � � � � rQ the months of April through September, inclusive. Seeding may proceed, however, I — _ _ _ _ q, it whmaver d. Is In the interest of the Permiiee, but must 6e augmented with Q V-`}� Mulching, netting or other treatment approved by the City of Renton. outside the i Ii specified time period. NI ' f ! I p p p p p Q p Q. p V 7 B. For all o-aaian/sad'unenfokion contra ponds where the dead atoragv depth p t7 Q q 0 p , 0 V. _ p Q a ceeda 6 nchea, a fierce is requires with a minimum height of three (3) feet, 3:1 I I j _ $ side stapes S. A temporary grovN construction entrance, 24 feet x 50 fact x 8 'inches of 4 to y+ I I N - R I fi inch quarry apolla shall be located at all paints of vehicular ingress and egress to - $ the construction sRe. aI I-: - Utiliiy SpeciRcalions _.....-- .- _......_, CONSTRLCTIBN ENTRANCE 3 V i I SEE DETAIL SHEET S. .. C "o z NOTE: xjn I I o r BOUNDARY AND TOPOGRAPHY ARE BASED ON I ! MAPPING PROVIDED TO i BY DESIGNS LIMITED AND OBSERVATIONS MADE IN THE FIELD. THE j,"'OSE11 BCKPILE AREA INFORMATION SHOWN DOES NOT CONSTITUTE A FIELD SURVEY BY E3RA. �-- IS,�FS-?3 PLACE CATCH BASIN PROTECTION AT CORNER OF SHATTUCK AND j , i x S eBA48'38" E^ S191— HOUSER WAY S AS WELL AS SHATTUCK AND S 15TH ST_ I f � _ � SILT TT)FENCE SHEET 5 CLEARING LIMITS �a I SEE DETAIL SHEET 5 II� i i I h I i I ZA\* �I Coll 2 Working Dcys Before You Dig 1-800-424-5555 Utilities Underground Lecotion Center I I N I I 10 0 10 2fl I[ I t V I I I SCALE IN FEET I �i�4 PROrr\ I: �cys{sue_ ,r •,, g: CP�SC �`yE�tri�t� NOTE: THIS SET OF PLANS SUPERCEEDS ALL PREVIOUS PLAN SETS LEGEND 1H PR0P05ED GATE VALVE TEE (FL) ADAPIFi7 (FL X NJ) CONCH BLOCKING BLND (w) w/RLXKW 11 SLEEVE (MJ) OR FLEX COUPLING PROPOSED WATER MAIN -W--.—x'— EXISTING WATER MAW PROPOSED PRE NYORANT ASSY. I-r.;y5 pb$?paG FIRE HYDRANT ASSY. ExCTiNG WATER METER —S---..—SS_ SPIER MAIN V11' ASPHALT RE510PA7I0N l.ILLLLLCJ MATCH DV%G SECTION Q Ex15TING MANHOLE .. CATCH BASIN _Si..- V- EXISTlIQ STORM ---m PROPOSED WATER METER N OTE: BOUNDARY AND TOPOGRAPHY ARE BASED ON MAPPING PROVIDED TO E3RA BY DESIGNS LIMITED AND OBSERVATIONS MADE IN THE FELD. THE NFORMATION SHOWN DOES NOT CONSTITUTE A FIELD SURVEY BY E3RA, SEE SHEET 5 FOR NOTES ALL DETAILS CAN BE FOUND ON CITY OF RENTON WEBSITE STANDARD DETAILS THIS PLAN SUPERCEEOS ALL PREVfOUS PLANS Call 2 Working pays Before You Dig 1— 800-424-5555 PROPOSED ASPHALT AREA Utilities Underground Location Center _ E)OSRNG IMPERVIOUSE AREA @ SAW cLCUT4' TRENCH (GRAVEL) REPLACE ASPHALT AND PAVEMENT MATCH FJ(ISTIhK PAVEMENT SELiITII Tn 1S' S�ITCE; 1`0 IW INSTALLED BY CITY, Er 2EHrdN - .. z w� I.5' WATER SERVICE ....' - �--- E � 33 I DOUBLE LHECK V V A $ MBLY (DCVA) SEE RENTONTON STAN➢AANB10 .. �.._I in?- I ' o , C TAPPING TEE r N.i f [ f*[ TAPPING GATIQ VALVF'KFLXH".i1 - �1 F5, 7EHPDRARY P LICi (M.!) 1lTTH 6' TAP A PLAN B115 13 LF6 DI - - PROPOSED HYDRANT SESE£ STANDARD PLAN Bi02 DCVA z 1f; aI PROPOSED 15' WATER SERVICE SEE RENTON STANDARD PLAN 310'1.1 (TYP.) BY SERVICE TO $N INSTALLED n 1a c 1a �o SCALE IN FEET 0 Ed x LU J EL ZI 0 Z W IS Water Utility Notes and Sprclfications THESE NOTES SHALL APPEAR ON PROJECTS FOR THE WATER UTILITY 1. All work materia shall be in confamiance with the standards end specifications of the City o1 Renton Pianning/Buading/Public Works Department and the latest edition or the WSDOT/APWA Stendards and SpedficaGons, as approved and modified by the CHy of Renton in the Rentan Standard Plans & Specifications. A set of approved plans shall be kept an site at be times during construction. 2. The hours of wank In the street right of way Shun be €Inirl to 6:30 AM to 3:30 PM on weekdays unless otherwise approved in writing by the Public Works Department at (425) 430-7301. The Police Department, Fire Department, and Bit Wall be notified 24 hours r advance of any work in the right of way. 3. All locations of existing utilities shown are approximate and It shop be bra contractors responsibiity to -ify the true and correct Vocation so as to avoid damage or disturbance- For utility locates call 48-hour locators 800-424-5555. 4- An approved Traffic Control Plon is required to be submitted of the pre -Construction meeting. 5. All watermair ppe is to be cement lined ductile iron pipe conforming to AWWA C110 and C111 or latest revision, thickness Class 52. Cement mortar lining and seal coating shill conform to AWWA C104 or latest revision. Pipe pinta to de push -or or mechanical pint. Bedding to be Gass C. All ductile Iron pipe and fittings shall be polyethylene wrapped per ANSI/AWWA C105/A21.5-93 Standards. E. Cost iron and ductile iron fiiing. shall be cement lined, pressure rated us noted on plans. and in accordance with ANSI/AWWA C110/A21AU-87. Cement lining shall be in accordance with ANSI/AWWA C104/421/4-90. If fittings are 3 to 12 inches in diameter and hove mechanical joints, the fittings shall in accordance with eiiher ANSI/AWWA C110-A21.10-87 or ANSI/AWWA C153/A21.53-94. Three (3) inch to 12 inch diameter Bttings, which have mechdnical Joints and/or flanged joints, shall be in accordance with ANSI/AWWA C11D/A21.10.87 o amhinotion of ANSI/AWWA C110/A21J0,87 and ANS1/AWWA C153/A21.53-94 such (bat the portion o1 the fitting with a mechanical joirt(s) may be with ANSf/AWWA C153/A21.53-94 and that portion of the fitting with forged 'pint(.) shall be in accord.... with AWWA C110/A21,10-e7. Acceptance testing in accordance with section 53.53 of ANSI/AWWA section 10-4.3 of ANSI/AWWA C110/A21.70-87 shall be obtained by the contractor and transmitted to the owner. 7. Cote valves shall be iron body, bronzed -mounted, double disc with bronze wedging device end 0-nng Stull box (AWWA C500) or of resilient seated type (AWWA C509)- Valves shall be designed far a minimum water operating pressure of 2W psi. Cate valves shall be Clow List 14, Mueller Company NO. A238D or M & H. 8, fare hydrants shall be Corey type (opening with the pressure) ar compression type (ap-ing against priiiii-) con farming to AWWA C-502-65 with a 6 inch mechanical pint inlet and a male valve opening (M.V-O.} or 5-1/4 inch, two 2-1/2 inch base nozzles with Notional Standard Threads 7-1/2 threads per inch and one 4 inch pumper nozzle with the new Seattle Pattern 5 threads per Tech, 50 degrees V. Threads outside diameter of more thread 4.675 and roof diameter 4.6263. Hydrants shall have a 1-1/4 iron pentagon operating nut opened by turning counter clockwise (left). 9. The two 2-1/2 inch hose nozzles shelf be fitted with cast iron threaded caps with operating nut of the same design and proportions as the hydrant stem nut. Caps shall be fitted with suitable neoprene gaskets for positive water tightness under test pressures. 10. The 4 inch pumper nozzle shop be fitted with o SLarz adopter, 4 in h Seattle Thread x 5 inch Storz. Storz adapter shall be forged and/or extruded 6061-TO aluminum alloy, hardcoat anodized. Threaded and portion shelf hove no lags and two set screws 180 degrees apart. Storz face to be metal, no gasket to weather. St- cep to have synthetic melded rubber gasket, and shell be attached to hydrant adapter with 1/8 inch, coated, stainless steel, 6-oft cable. 11. Fire hydrants shall be pointed with two coats of point. Preserv.live point number 43-655 safety yellow or approved equal. 12 Pumper connection to face roadway assembly. 13. Fire hydrants Shull be installed per City of Renton Standard Detail far fire hydrants. latest re+dslon. 14. Ail waLermains 10 inches and smaller to maintain a minimum cover of 36 inches below finish grade. Ali watemncin 12 inches and larger shall be at a mil of 48 inches below finish grade- Where utility conflicts occur, watenr lns are to be lowered to clear, 15, All watermains 5 inches oad larger In diameter shall be cleaned with pipe cleaning "PICS� prior to disinfection. The `Poly pigs" shall be Girard Industries Aqua Swab -AS or approved aquol, 2 Ib/ . ft. density foam with 90A durometer urethane rubber coating an the rear of "PIG" only. 16. "PIGS" shill be cylinder shaped with bullet nose ar square end- The contractor wilt perform the cleaning aper.tlon. 17. All watermakls and services shall be pressure tested to a minimum of 200 psi or 15D psi over operating pressure, in occadancs with the specifications of the City or Benton and the Washington Slate Health Department Alf pressure testng shall be done in the presence of a representative of the City of Renton. The quantity of water lost from the main shall not exceed the number of gallons per hour as listed in City of Rental Standard Plans & Spxificatlons 7-11.3(11). The loss in pressure shall not exceed 5 psi during the 2 hour test period. 16. All watermains and services shall be ciislnfented by the injection of a 50 ppm (minimum connentrution) chlnrine/water solution. Dry Calcium Hy9ochlorite shall NOT fie pieced n the pipe as laid, Chlorine shall be metered/injected in accordance with Section 7-11.3(12)E or 7-11.3(12)F of the Standard Specif-bona referenced above. 19. A pre-constr.cllon conference Is requlred prior to any construction. A minimum of five (5) working day. notice is required for scheduling. 20. Twenity-twr f24) hours notice will be required prier to starting new construction. 21. It what be the contractors responsibility to secure all necessary permits prior to starting construction. 22. Installation of corporate strips. water servlees, lines and meters shill not tie done until all service agreements, meter applications, c nstructior permits, and payment of fees have been made to the City of Rental,. 23. All connection to existing moire is to be accomplished by the City or Remtor, except wet tops, which may be made by approved wet top eanimctars with prior approval from the Public Works Depertment. Ali necessary ...ovation and materials are to be supplied by the contractor and be on -site prior to City notifieetions. 23. AG connection to existing moins is to be accomplished by the City of Renton, except wet tops. which may be made by approved wet tap contractors with prior approval from the Pul Works Department. All necessary excavation and materials are to be supplied by the controctor and be err -site priu to City notifications. 24r lnspectian will be accomplished by a representative of the City of Renton. H shall be the contractor's respons3Gity to notify 13eveiepment Services twenty four (24) hours in advance of bockfdling all construction. The contr.ctor, as -11 as the engineers, shall keep as-bult drawings_ 25. Contractor to provide plugs and temporary blow -off amemblisa far testing and putty acceptance prior to final tie-in. 26. All joint restraint systems (shackle rods. nuts, bolts, etc) shall be as manufactured by the Star Manufacturing Company of Columbus Ohio. or equal, approved in writing by the P.biie Works Department 27. Asphalt and concrete street ping shall be sowcut to a minimum depth of two (2) inches. 09 mat streets may be spode cut. AP surf- concrete, povemenL sidewalks. curb, gutters, and driveway approaches shall be sowcut to a minimum depth of two (2) inches or removed to an existing expansion pint. 26. A temporary cold mix asphalt patch shall he placed an the day of initial excavation with a permonsnt, .soled patch to be placed, to City of Renton policy, within 10 days. Coll for subgrade inspection prior to piocement of final patch. ' 29. For City projects such as telemetry conduit, the PVC pipe used andl he Ail chemical process lines shall be schedule 80 PVC pipe. Schedule 40 In unimproved cm- and schedule 80 PVC pipe under improved .rears. RECOMMENDED CONSTRUCTION SEGUENCE i. Pre -construction meeting. 2. Flog or fence clearing limits. 3. Post sign with name and phone number of ESC Supervisor, 4, Inato€I catch basin protection If required. & Grade and! install construction entrance($). 6. Install perimeter pratection (silt fence, brush barrier, etc.). 7. Construct sediment ponds and trope. 8. Grade and stabilize construction roods. g. Construct surface water controls (intercepter dikee, pipe slope drains, etc.) simultaneously with clearing and grading for project development. 10. Maintain erosion central measures in occnrdance with Snahomiah County standards and manufacturers recammendotions. 11. Relocate surface water controls and erosion control measures or instalr new measures so that as site curia lone change the eroaien and sediment control is all in eccardanu with the Snohomish County Erosion and Sediment Control Standards. 12. Coiner all areas that will be unwerked far more than seven days during the dry Season or two Boys during the wet season with straw, wood fiber mulch, compost, plastic Sheeting or equivalent. 13. Stabilize all areas that reach final grade within seven days, 14. Seed or sod any areas to remain unwarked for more than 30 days. 15, Upon completion of the project, ell disturbed area. must be stabilized and best monagement practices removed if appraprlats. ril PERFDRM MAINTENANCE AFTER EACH STORM EVENT AS DEFINED IN THE ➢RATI,GAGE PLAN. I. SIZE THE BELOW GRATE INLET I)EVICE (BGIl1) FOR THE STORM WATER STRUCTURE IT VILL SERVICE, 2. THE BGID SHALL HAVE A BLJILT-IN HIGH -FLOW RELIEF SYSTEM COVERFL13V BYPASS). 3. THE RETRIEVAL SYSTEM MUST ALLOV REMOVAL of THE 36ID VITHOUT SPILLING THE COLLECTED MATERIAL. ISOETRIC VIEW CATCH BASIN pRDTEl IXWL NTS JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINM, OR EOUWALIF IT TO ATTACH FABRIC TO POSTS. 2"s2- BY 14 Ga. WIRE 01 EWfVALEM, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC z s N 3y 6, MAX, � MINIMUM 4"x4" TRENCH / BACKFILL TRENCH WITH / NATNVE SM OR POST SPACING MAY BE INCRIF SED WASHED GRAVEL TO 8' IF WIRE BACKING IS USED 2"x4" WOOD POSTS, STEEL FENCE NOTE, FILTER FABRIC FENCES SHALL BE POSTS, REBAR, OR EOUROJENT INSTALLED ALONG CONTOUR WHENEVER POSSIBLE DETAIL: SILT FENCE N.T.S. SYST[N �Vcp DRIVEWAYS SHALT, BE PANS TO THE EDGE OF R-O-W PRIOR TO IKSTALLATION OF T14E ry[5 r CONSIRUC'i10N ENTRANCE TO AVOID 1ci1 DAMAGING OF THE ROADWAY FT IS RECOMMENDED THAT THE R - 25' MIN. ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD BYPASS 4'-R" WMRY $PALLS GEOTEATILE 12" MIN. 7HIC1(NE55 / Nvi " PROYIDE FALL WIDTH OF tFLDV BYPASS INGRESS/EGRESS AREA DETAIL: STABILIZED C4STRUCTION,., ENTRANCE BEM MD DEBRIS N.T.S. tyre? Pq "•.(5y� i Ron,>y C. "-lip mf�LB tit M W X W CL I O h Z Ill it THESE N07ES SHALL APPEAR ON PROJECTS FOR THE SANITARY SEWER UTILITY. 1. All work and wank material shall be in conformance with the standords end specifications of the City of Renton Planning/Suilding/Public Work Deportment and the latest edition of the WSDOT/APWA Standards cord Specifications, as approved and modified by the City of Renton In the Renton Standard Plane k Specifications. A set of approved plans shall he kept on ale at at times during construcU— 2. The hours of work in the street right of way shall be per City speciflcat€ons on weekdays unless otherwise approved in writing by the Planning/%ildog/Public Works Department. An approved traffic casual plan must be obtained prior to beginning any work within public right of way. 3. Alt locations of existing utilities shown we oppraximole and it shall be the contractor's respansoblity to verify the true and correct focotion so as to ovoid damage or disturbon.e. 4. A pre —construction confera,ce and a 24 hour notice shall be r"uired prior to starting new carstruction. it shall be the contractors responeibility to Seoul- all nuceasory permits prior to starting construction, (Incpectlon veal be a—phirhad by a representative of the City of Renton.) It shall be the contractors responsibility to notify the Public Works inspector 24 hours E. advance of backFi€ling all construction. 5. Contractor is solely responsible for the means, method. and sequences of construction and for the safety of workers and others an the construction silo. 6, It shall he the responsibility of the contractar to obtain street vac and any other related permits prior to any construction. 7. Plans opprored by the City of Renior, Public Works Department shall take precedence over all other plane. ti A copy of these approved plans must be on the job site whenever construction is in progress - 9. The contractor shall provide the City of Renton with an vs —built drawing of the sanitary sewer system, which has been stamped and signed by a 3icensed professional engineer or licensed professiond aurveyar. 10. 8ackfdl shall be placed equally on both sides of the pipe in layers with a loose average depth of 6 inches. maximum depth of 8 inches, thoroughly tamping each Foyer to 95 percent of maximum density. These compacted layers must extend for ont pipe diameter on each side of the pipe or to the side of the trench. Materials to complete the nil aver lope shall be the same as desaribed. 11. Open cut road vossings for utility trenches an existing tra led roadway shall be backblled with crushed rock and mechanica4y compacted unless otherwise approved by the Public Works inspector. Cut. into the eeisling asphalt shd€ be neotline cut with sow in a continuous line. A temporary mix patch must be placed immediately after backf3i and campoctlan. A permanent hot mi. patch shall be placed within 10 dap anal shall be per City of Renton current at.adond,. 72. Datum shot€ be City of Renton, 1968 NAVD. 13, A11 disturbed areas shall be seeded and mulched or otherwise mobs€zed to the sctisfoction of the Department far the prevention of on —site erosion after the conpietion of construction. 14. Ail pipe and appurtenances shall be laid on a properly prepared foundation in accordance with the stardards and epeoifications of the City of Renton Ploaning/B3 ilding/Pudltc Works Department and the latest edition of the WSDOT/APWA Standards and Specifications, as oppr.—d and modified by the City of Renton in the Renton Standard Plana k Specificatiorm Th€s shall include necessary, leveling of the trench bottom or the top of the foundation moterkd, as well as piacement and cornpoctio of requked bedding material. to uniform grade so that the entire length of the plot will be supported on a uniformly dense. unyielding base. Pipe bedding ehol€ be pen grail 6 inches above sad below tha pp.. 15. Sanitary sewer pipe shall be polpmyf chloride (PVC) rubber gosketed ASTM D 3034. SDR 35, or ductile iron A.ss 50. unless otherwise approved by the Wastewater Utility. 16. In unimproved areas, manhole to extend minimum 6 inches and maxmum 12 inches above finished grade ar must hove minimum 2' diameter concrete ring poured at grade. in pored area, cover must dope in off directions to math paving. SIDE SEWER NOTES 1. Prior to installation of a sonitery sewer connection, a side —sewer permit must be purchased from the City of Renton Public Works Department 2- Types of pipe and fittings that can be used far sanitary sewers shall be approved by the Department of Public Works, Rubber or neoprene gaskets as specified by the manufocfurer, shall be used on joints. 3. A minimum grade of 2% (1/4" per fact) must be maintained with 4" pipe- €r the event a 2% grade cannot be maintained, the owner must grant a grade raiease to the City and then can maldl 6" pipe at a grade of 1Z. 4. For inspection of side sewer, call 24 hours in advance. The inspecbco phone number is or the side —sewer permit. Site must be ready for €nspection and representation on the site when inspector arrives at appointed Inn w Side seer and stub shall be tested per City ap..lfI-1I-,. Wake the connection at the house. Do not backfill the ditch until approval is given by the inspector. Final approwl will be granted otter the existing septic taak has been pumped out cad filed with and. 5. Install side sewer with 2' minimum cover. 18` Cover is allowed of the house if Outlet is shall... E. if sides stub is not avalable. The contractor shall be responsible for its instalfatior. se The side sewer shall be a minimum 5' in size. If tee Is not available, unless otherwise opproved by the City. make top through cost iron saddle secured to .ewer main with atrinless steel bonds when connecting new side sewers to existing main. Plain and reinforced concrete, DI pipe, and Ci pipe sewer mains are to be core drilled. Vtrified cloy pipe shall be cut and hove a new tee sectioned in. 0 work within street right—of—way shall be done by a licensed and bonded contractor. 7. All work shall be accomplished In occardonce with the Washington Industrial Safety and henith Act- (WISHA) 8. All trench restoration for aide se sin the public right—of—way shag conform to the most current trench restoration assh.— on d g. JHR-23. 9. All budding aewer and aide sewers shall have bedding in accordance with drawing 9W18C or OR09 as applicable. 10. There ehall be a minimum 30 foot horizontal separation between sanitary side sewers and water services wd a minimum 5 fact horizontal aeporatian between aoritary aide sewers and al other utilities. 01 SAW CUT 4' TRENCH REPLACE ASPHALT AND PAVEMENT MATCH EXISTING PAVEMENT SECTION (D 6' TEST TEE WITH PLUG FACE UP (TYP.) ® 24 PVC SIDE SEVER RUBER GASKETED, ASTM 3034 2 13.20% p 24 PVC SIDE SEWER RUBER GASKETE➢, AS7M 3034 It 16.92% ® 6' SURFACE CLEANOU7 WYE (7YP.7 SEE CITY OF RENTON STANDARD DE7A1L BD82 SIDE SEWER (PROPER7Y LINE? TU BUILDING CONNEC710N INSTALLATION PLAN, BC76.1 8 DR 6 INCH CLEANCUT, AND NOTE: THIS Si OF PLANS SUPERCEEDS ALL PREVIOUS PLAN SETS 11077 PIPE BEDDING FOR SANITARY SEVERS FOR SIDE SEWER INSTALLATION. No, Date Revision Cali 2 Working Days Before You Dig 1- 800- 424- 5555 Utilities Underground Location Center (1) LLI x LLJ —i LL z 0 F— z LLJ Cc COMMON NAME LATIN NAME JYPE NNE MAPLE ACER CIRC3NATUM TREE 6 BITTER CHERRY PRUNrS EMARGINATE TREE 4 OCEANSPRAY —7ramlxm�F-314 �u _TQ759CON tAAK MAHONIA AOUTOLIUM Mpuff aA" HJP ROSE RO A CYNBOCARPA Pfus— EVERGFW-EN HUCKLEBERRY VA�:(;INIUN UVAIUM VRU-g BEACH STRAVOERRY AG IA CHI O�MKW SWORD FERN Ti poLyscHum MUNITUM — GROUND 420 VANCOUVERIA HLXAMA 7TUW NOTE; IRRIGATION SYSTEM TO BE INSTALLED PRIOR TO PLANTING. S4RU85 REMOVEO�I TOTAL 10 TREES ADDED VNE WEE MIN 2' TRUNK AT TIME OF PLAMrNG BRIER CHERRY MIN 2" TRUNK AT TIME OF PLWITNG 0 OCEAN SPRAY 43 TALL OREGON GRAPE • EVERGREEN HUCKLEBERRY • BALD HIP ROSE - SWORD FERN BS BEACH STRAWBERRY 10 WSIOE-OUT FLOWER PROPOSED ASPHALT AREA EXISTING IMPERVIOUSE AREA (GRAVEL) N I 10 20 SEALE IN FEET Call 2 Working Days Before You Dig 1-800-424-5555 Utilities Underground Location Center 5 a3d4$'10' E 110.W' NOTE: BOUNDARY AND TOPOGRAPHY ARE BASED ON MAPPING PROVIDED TO E3RA By DESIGNS LIMITED AND OBSERVATIONS MADE IN THE FIELD. THE INFORMATION SHOWN DOES N07 CONSTITUTE A FIELD SURVEY BY E3RA. SEE SHEET 0 FOR LANDSCAPING DETAILS. ALL OPEN AREAS NOT COVERED IN IMPERVIOUS MATERIAL SHALL BE SEEDED OR MULCHED. w x w J a. zI z Ill ir BdcB OR CONTAINERIZED SHRUB (TYP) SET ALL PLANTS AT NURSERY LEVEL (TYP) MIN 2"-3" OF MULCH SHRUU PLANTING PIT PREPARATION LUSV- DEPTH & WIDTH PLUS 1'0" ADDITIONAL ALL SIDES ,,--FINSH GRADE ' ADDITIONAL PLANTI AREA PREPARATIONNG PER DRAWINGS REMOVE CONTAINER COMPLETELY OR REMOVE BURLAP FROM TOP 2/3 OF ROCTBALL REMOVE ALL WIRE AND STRING ' - NATIVE BACKRLL SOIL AMENDED WITH 25% DECOMPOSE© ORGANIC ROOTBALL + l'—O'MIN ALL SIDES MULCH AMMENOMENT UNDISTURBED SUBGRADE (PROVIDES FIRM BASE SO THAT ROCTBALL WALL NOT SINK) TYPICAL GROUND COVER VEL MIN. 6" DEPTH 3"-4"PLANTING SOIL MIXED 50/50 WITH NATIVE SOIL OR NATIVE SCfL AMENDED WITH 25 % W N DECOMPOSED ORGANIC MULCH AMENDMENT SCARInFD SUBGRADE STAKE TREE WITN (2) TREATED 2"4 LOOCFPCLE PINE DOWELED TREE STAKES {B'--O' LENGTH) LOOP EACH TIE AROUND HALF TREE LOOSELY TO PROVIDE 1' SLACK FOR TRUNK GROWTHS 'CHAINLDCK" O2 EQUAL TREE TIE MATERIAL (I" WIDTH} NAIL 2'- MIN OR STAPLE TREE TIE MATERIAL TO STAKE TO HCLD VERTICALLY. LOOP EACH TIE AROUND HALF TREE LOOSELY TO PROVIDE I" SLACK FOR TRUNK GROWTH 2"-3" MULCH DEPTH (TAPERED Ai MULCH TREE PIT MIN 5'-0" LENGTH X FULL PLANTING STRIP WIDTH BETWEEN CURD AND SIDEWALK (FOR FLAXTING STRIPS {ESS THAN 6'-O"WIDE.) PROVTOE 5'-0"0 MULCH SEE NOTE RING FOR PLANTING STRIPS WIDER THAN 6'-0" a - ROUGHEN SIDES OF PLANTING HOLE MAXIMIZE EXCAVATED AREA - WITHOUT UNDERMINING ADJACENT PAVING/CURB I6' DEEP ROOT BARRIER *'r (TYP. WITHIN ID' OF PAVING REMOVE ALL A'IRE do STRING, AND REMOVE ALL BURLAP FROM TOP 2/3 OF ROOTBALL NATIVE BACKFlf.L SOIL AMENDMENT ` f WLTH 25s (@I/3 CU YD) DECOMPOSED ORGANIC MULCH AMENDMENT FOR ENTIRE TREE PIT , AREA X RODTHALL DEPTH UNDISTURBED SUBGRADE (PROVIDES FIRM BASE SO THAT ROOTBALL WALL NOT SINK) NOTES: � 1. INSTALLATION INCLUDES MIN REMOVAL OF STAKES ONE YEAR AFTER INSTALLATION 2, SHAPE SOIL SURFACE TO PROVIDE 3' DIAMETER WATERING RING 3. TREE CLEARANCES SHALL _ BE PER STD PLAN NO 030 4. SEE STD PLAN NO 424 SEE NOTE 2 FOR TREE PIT DETAII- -SET TOP OF ROOT CROWN 2" ABOVE ADJACENT CURB k SIDEWALK GRADE TREEP!T DEPTH- ROOTBALL DEPTH (MEASURE BEFORE DIGGING TO AVOID OVEREXCAVATION) bll� 5'-0', WHICHEVER IS GREATER MULCH AREA TO BE CLEAR OF GRASS, WEEDS, ETC. TO REDUCE COMPETITION WITH TREE ROOTS .CPMNQNT! -NAMF E MR VINE MA A CR NA M TREE BITTER CHERRY R PUNS £MARGINATE 'IS TT A H I U AHA M N. B A N HU Y VA OVA M HGR RUB A Y A € IL N S 0AGf V FERN POLY CHSWORD STIUM MIUNITUM GROUND42 1RMUI!--MT FLOWER A A DRIVE STAKES 6' TO I'-O' INTO UNDISTURBED SOIL BELOW ROOTBALL DRIVE STAKE AT ROOTBALL EDGE (TIP) SEWER REPORT RENTON TRIPLEXES 530 SHATTUCK AVE S. RENTON , WASHINGTON Submitted to: NOV 2�07 VIECEIvED Victor Phan 201 Valley Avenue Puyallup, Washington 98371 Submitted by: E3RA, Inc. PO Box 44890 Tacoma, Washington 98448 October 24, 2007 T07250 0 TABLE OF CONTENTS Page No_ CERTIFICATION............................................................................1 INTRODUCTION...................................................................2 List of Figures Figure 1. Site Location Map APPENDICIES APPENDIX A References........................................................................................... A-1 APPENDIX B Sanitary Sewer Service Plans E3RA CERTIFICATION PO Box 44890 Tacoma, WA 98448 253-537-9400 253-537-9401 Fax This plan was prepared under the supervision and direction of the undersigned seals as a licensed professional engineer is affixed below. EXPIRES 12/5/b ` )7 October 24, 2007 T072501 Victor Pharr Sewer Report INTRODUCTION This report is intended to meet the requirements of the Renton Sewer District. E3RA, Inc. The project is located at 530 Shattuck Ave S in the City of Renton in King County, Washington as shown on the site map, Figure 1. There is an 18" sewer main in Shattuck Ave S and an 8" sewer main running north to south to the east of the site in the 16' alley. We propose to connect to the 8" main in the alley. The project consists of constructing two 6-inch diameter side sewers to serve 2 triplexes. The sewer will serve three single-family residential homes each. The side sewers will be privately maintained. A 6 inch side sewer has been chosen for the site as shown on Standard Plan B082 "minimum line size for other than single family is 6." The slope on the private 6-inch mains will be 13.20 percent sloping to the 8" sewer main for the northern most side sewer. The southern most side sewer will have a slope of 16.92% sloping to the 8" sewer main in the alley. Concrete clocking is not required at these angles. All private sewer pipes will be constructed of PVC and bedded according to B077 Standard City of Renton Detail Pipe Bedding for Side Sewers. The side sewers shall be connected to the sewer main with a cast iron side saddle secured to the sewer main with stainless steel bands. The main shall be core drilled unless clay. If clay piping is encountered a Tee shall be used. 2 15 0 Q N v z 0 0 0 M N a TOPOI map printed on 101117107 from "Untitled.tpo" 1221114, 000' W 1220 13 000' W �NGS84 122012, 000' W rk 6{Yj +� f ji! {+ * � � I Power M .. P1ant' age an 40 0 74 !w `•1 1 � 1 i, -ark "` r �1 t,rL Park. :1t m 122a14,000' W 122a13,000' W WG 84122a12,000' Ud TN MN 0 -5 1 MILE 1ea 0 I0]0 FEET U 500 to MU RS Map created with TOPO!§ @2003 National Geographic(www.nationslgeographic.cornitopa) ORA, Inc. P.4 Box 44890 Tacoma, WA 98448 RENTON TRIPLEXES TOPOGRAPHIC AND LOCATION MAP RENTON, WASHINGTON ~ Il z 0 0 N a z FIGURE 1I T07250 APPENDIX A REFERENCES City of Renton Web Site APPENDIX A REFERENCES A-1 APPENDIX B SANITARY SEWER SERVICE PLANS rsdi O Lf 3 r" O U LL w U z u � a Ii THFSE NOTES SHALL APPEAR ON PROJECTS FOR THE SANITARY SEWER UTILITY. 1. All work and work moterio'i shall be in cmfwmance with the standards and r specifications of the City of Renton Ranning/aulldaeg/Public Works Department and the latest ediHm of the W'SDUT/APWA Stanve Standards and $pxirira[ians, as approd and modified by the City of Rarion In the Renton Standard Plans da Spaclbcetlms A set or approved plans shall be kept an site at all tines during canstrvctim 2- The hours of work in the street right of way shall be per City specifications an weekdays unless otherwise upprv,ald in writing by the Plonniag/6udding/Public Works Deportmant. An approved traffic contra pile -.at be obtained prior to beginning any work within public ryht of way. Z. At locations of existing uNities shown We appro6mote and 'd shell be the contractors responsibility to verify the true and correct IOCetim so as to avid damage or disturbmnre. 4. A prrconsiruetfon conference and a 24 hour notice shelf be required prior to starting new construction. A small be the contractor's responsibility to secure eW ntcaaary perrnits prior to starting coe-tructlon- (Inspection will be ace—plishisd by o representative of the City of Renton.) It shall be the contractar's responsibility to notify the Public Works inspector 24 hours in advance of bodhfdOng oil construction. 5. Contractor is solely responsible for the meos s, method. and sequences of const'-Van and for the safety of warktrs andothers on the aonsrsuction aite- S. It shall be the respaosibility of the oontractar to obtain street use and any other related permits prior to any construction. 7. Plans approved by the City of Renton, Public Works Department shall take precedeinoe aver all other plops. 8. A copy of these approved plans mast be on the join site whand er eanatruction is n progress. 9. The contractor shelf provide the City of Renton with an as -built drawing of the sanitary sewer system. which has been stamped and sgned by a licensed professional engineer or licensed professfonal suns). 10. 9ockf1fll shall be placed equally on bath sides of the pipe in layers with c Tease overoge depth of 5 inches, maximum depth of 8 }nches, thoroughly tamping each layer to ms 95 percent of maximum density. These composted loya must extend for one plpe diameter an each site of the pipe or to the side of the trench. uaterials to on plete the fill aver pipe shall be the same as described. 11. open cut rood crossings for utility trenches on edsting trovded roadway, shill be badm r6led with crushed rock and mechonicolly caoacted unless otherwise approved by the Public Works Inspector. Cuts into the misting asphelt shall be ritabine ant with $ aw In o Continuous line. A ternporary mix patch must be placed immediately after backfill and compaction. A permanent hot mil patch shall be placed within 10 dap, and shall be per City of Renton mment otondard,. 12. Datum shall be City of Renton, 1986 NAVD. 13. Al disturbed areas shall be seeded and mulched or otherwise sleblized to the satisfaction of the Department liarthe pre + ntlon of on -site erosion after the Campletian of construction. 14. All pipe and appurtenances shell be laid on a properly prepared foundation in accordance with the standards ond specifications of the City of Rattan Plunning/SuAd"mg/Public Works Department and the latest edition of the WS007/APWA Standards end Specfrcobans. as nppro+ d and modified by the City of Renton fn the Renton Standard Plana & Specifii-U.ns. This shall include niscewswy leveling of the trench bottom or the top of the foundation metered. as well as piccement and compaction of required bedding matariaf, to uniform grade so that the entire length of the pipe will be supported on a uniformly dense, unyielding base - Pipe bedding ehol! be pea grovel 6 inches above and below the pipe. 15. Sanitary ewer pipe shall be Pdyvinyf chloride (PVC) rubber gaskeked ASTM D 3034, SOR .35. w ductile iron doss $0, unless otherwise approved by the Wastewater 1111dy. 16. In unimproved arena, manhole to extend minimum 6 inches and maximum 12 inches above finished grade W must hove m:himum 2' diameter concrete ring poured at grade, In paved area, cows must siope in alI directions to match pwnng. SIDE SEWER NOTES 1. Prior to Installation of o sanitary sewer connection, aside -sewer permit must be purchased from the City of Renton Public Works Deportment. 2- Types of pipe and fittings thot can be ...d far sanitary sewers shad be approved by the Department of Public Works, Rubber cur neoprene gaskets as specfied by the manufac!urer, sha€I be used on jaunts. J. A minimum grade of 2% (1/4" per foot) must be maintained with 4" pipe. In the went a 2% groats Cannot be nmaintche%t the owner must grant a grade reieaee to the Cfty and then can install Sr pipe at a grade of 17. 4. For inspection of aide sewer. call 24 hburs in odvonce. The inspection phone number is on the side --sewer pemhll. Site must be ready for Inspection and representation on the site when nspector orriv at appointed time. Side a er and stub shall be tested per City specifications- Doke the connection at the house. De ,at backfid the ditch untl approvd is given try the inspector. Find approvaf will be gnarled after the aerating septic honk has teen pumped out and flied with sand. 5. instill side sewer .ith 2' mrmmum cove. 1B" sever is cil-ed at the house if outlet is shallow. 6. If aide sewer stub is not ava%able. The contractor shall be responsible for its imstollatt. The side sewer shall be a minimum 6" in size. If tee is not ovailoble, unless otherwise opproved by the City, make top through coat iron saddle secured to sewer main with stainiess steel bonds when connecting new side sewers to existing moan_ Plain and reinforced aencrete, 01 pipe, and Cl Pipe sewer mains are to be core drilled. VitrhYed cloy pipe shall be cut and have a new tee sectioned in. All work within street right-of-way shall be done by a lictrtsed and bonded contractor 7. All work shall be accomplished in accordance with the Washington Industrial Safety and health Act (YASHIA) B. All trench restoration for aide ..were in the public right-of-way shall conform to the most current trench reatorabon as shown an dwg- SIR-23. 9. All bulding aeweir and side sewers shall hove bedding in oecordon e, with drawing SW1BC on BIRDS as applicable. 113. There shall be a minanurn 10 foot harizontd seporatiam between sanitary aide wens and water services and a mfnimam 5 foot hon€ tot separation between sanitary side sewers and of other utilities. 1= a 0 a y b$ I . 3 Q SAW CUT 4' TRENCH REPLACE ASPHALT AND PAVEMENT MATCH EXISTING PAVEMENT SECTIIIN 6' TEST TEE WITH PLUG FACE UP tTYP.) ® 24 PVC SIDE SEVER RUHER GASKETEB, ASTM 3034 It 13.P0X 24 PVC SIDE SEVER "ER GASKETE➢, ASTH 3G34 2 Ir52% 6' SURFACE CLEANIDT WYE CTYP.) SEE CITY OF RENTON STANDARD DETAIL B062 SIDE SEVER (PROPERTY LINE) TO BUILDING CIINNECTION INSTALLATION PLAN, 9076.1 R OR 6 INCH CL.EANDUi, AND B077 PIPE BEDDING FOR SANITARY SEWERS FOR SIDE SEWER INSTALLATION, Call 2 Working Days Before You Dig 1-800-424-5555 Utilities Underground Location Center PROPOSED ASPHALT AREA I - r_ Fx STINC ILIPFRVOLI.V ARFA 10 0 10 20 SCALE IN FEET ! I 1 r I I fie SIDE SEVER " IE-zs+a s• 5 lE R= (APPROXIIAT)i � f KM IEAIN AON e' COVER ' Z _r:v E9,IIDL.f I I6Er CI SADDLE 19A4 e =k4 w • — — s W"a'16- near! K6 2LT50 MIN a COVER I I 14AO:TAIN MIN r cuvrJz 1 41 �' E105nNG SaM: `[-� I Sgu'S iE=17.7a d' R f r I I N OTE: BOUNDARY AND TOPOGRAPHY ARE BASED ON l f MAPPING PROVIDED TO E3RA BY DESIGNS LJMITED I AND OBSERVATIONS MADE IN THE FIELD_ T.-IE N Ijl I INFORMATION SHOWN DOES NOT CONSTITUTE A FIELD r A SURVEY BY E3RA. 1 r OF PLANS No. Date Revision CHECKED FOR COMPLIANCE TO CITY STANDARDS Date pate Date /� E � RA Inc. T C. PROJECf: Renton'Enpleses Renton, WA SHEET TRLE Sanitary Sewer Plan 9802 291h Avg, W. Suite B102 Everett, WA 98204 425-356-3372 w DESIGNER: CRL J09 NO:T0725C DRAYJNBY: ORL SCALE: 1^=la 425-356-3374tax www.e3ra.com ax CHECKEDSY, RCE SHEET: 6of8 s tZL ❑ATE- 10124J07 FILE: ohrent.dvvo WATER REPORT RENTON TRIPLEXES 530 SHATTUCK AVE S. RENTON , WASHINGTON DEVELOPMENT PLANNING a C`;TY OF RENTOIN NOV - 2 2007 Submitted to: RECEIVED Victor Phan 201 Valley Avenue Puyallup, Washington 98371 Submitted by: E3RA, Inc. PO Box 44890 Tacoma, Washington 98448 October 24, 2007 T07250 { TABLE OF CONTENTS Pa a No. CERTIFICATION.......................................................................................................................1 INTRODUCTION. .................................. .....................................................................................2 List of Figures Figure 1. Site Location Map Figure 2. Water APPENDICIES APPENDIX A References................................................................................................ A-1 APPENDIX B Water Service Plans E3RA CERTIFICATION PO Box 44890 Tacoma, WA 98448 253-537-9400 253-537-9401 Fax This plan was prepared under the supervision and direction of the undersigned seals as a licensed professional engineer is affixed below. /.1 E,�d�tS i2/5/�7 October 24, 2007 T07250 I Victor Pham Water Report INTRODUCTION This report is intended to meet the requirements of the Renton Water District. OR& Inc. The project is located at 530 Shattuck Ave S in the City of Renton in King County, Washington as shown on the site map, Figure 1. There is a 16" C.I.P. water main approximately 20 feet west of the property line in Shattuck Ave 5 and a 6" cement asbestos water main running north to south about 14 feet west of the property line that has been abandoned. We propose to connect to the 16" main in Shattuck Ave S. as shown on the water service plans found in Appendix B of this Report. The project consists of constructing two 1.5" water service connections connecting to the 16 inch C.T.P. water main. Each water service will serve three single-family residences. There will also be a double check valve assembly (DCVA) on each service as shown on the attached plans. All water service connections shall be by City forces according to City of Renton Standard Plan B107.1. A 1.5" service will be sufficient to serve 3 residences and irrigation. Pressure should also be sufficient in the area which has been mapped as 196 psi shown in Figure 2. A fire hydrant has also been proposed for the site as shown on the attached plans. The fire hydrant shall be constructed according to City of Renton Standard Plan B 102 and wet tapped according to B 115. A City approved contractor will be used for this connection. Irk z z a 0 0 N 4 TOPG! map panted on 10117107 from "Untided,tpo" 122" 14.000' W 122013.000' W WGS84122012.000' W I We') FPO • s . r.. an4 hill !L • 122° 14.000' W 122013.000' W WGS84122° 12.000' W TN MN q 1 WE 18° 1030 FEE1 0 5W 1000 METERS Map created with TOM@ 02003 Natmrml Geographc (www.mtianafgeogmphx.comAopo) E3RA, Inc. P.Q Box 44890 Tacoma, WA 98448 0 0 (D 0) N 0 h F 0 0 0 OD N 0 N t RENTON TRIPLEXES TOPOGRAPHIC AND LOCATION MAP FIGURE 9 T07250 RENTON, WASHINGTON Ur0.m YSTEMS Q 15DC MOD 435 Pressure Zone Wa, Quitliiy s:ss,pUng Point '„f 'd aT.wrysdw�. 490 Pressure lone Municipal Boundaries vM.e u.rams APPENDIX A REFERENCES City of Renton Web Site APPENDIX A REFERENCES A-1 APPENDIX B SANITARY WATER SERVICE PLANS A-1 LEGEND N PROPOSED GATE VALVE E-! TEE (FLf AI.NYfER (EL x MJl CONCRETE HLOCKM EIENC (MJ) WIBLOCKING J[ SLEEVE (W) OR Rn C0UPLING PROPOSED WATER MPIN -W W— EkISTINO WATER llWN PRDpos 0 rK HYiHUJlT ASS:. OnTWG FIRE HYORAHT ASSY. --� EMSTING WATER TEETER SEWER MAIN ASPHALT RESTORATION HATCH DusTIHG SEanoN Q E7RSRNG MANHOLE .- CATCH WIN -ST Si- EXIS W6 STORM --m PPZPM WATER METER NOTE: BOUNDARY AND TOPOGRAPHY ARE BASED ON MAPPING PROVIDED TO E3RA BY DESIGNS LIMITED AND OBSERVATIONS MADE IN THE FIELD. THE ENFORMATION SHOWN DOES NOT CONSTITUTE A FIELD SURVEY BY E3RA. SEE SHEET 5 FOR NOTES ALL DETAILS CAN BE FOUND ON CITY OF RENMN WEBSITE STANOARD DETAILS THIS PLAN SUPERCEECS ALL PREVIOUS PLANS Gall 2 Working i]oys Before You Dig 1-800-424-5555 Utilities underground Location Center �tJ SAW CUT 4` TRENCH REPLACE ASPHALT PAM PAVEMENT MATCH ETCTSTM PAVEMENT SECTIEIN