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SURFACE WATER STANDARD PLAN NOTES:
THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE DRAINAGE PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY
PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE
APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE
SURFACE WATER STANDARD PLAN NOTES.
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY
REFERRED TO AS THE CITY. THE APPLICANT. AND THE APPLICANT'S CONTRACTOR.
12. THE APPLICANT SHALL BE RESPONSIBLE FOR SECURING ALL NECESSARY CITY, STATE, AND FEDERAL PERMITS PRIOR TO CONSTRUCTION.
3. ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF RENTON SURFACE
WATER DESIGN MANUAL (RENTON SWDM), RENTON MUNICIPAL CODE (RMC), AND THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL
CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA). IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT TO
CORRECT ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO
THE CITY.
4. APPROVAL OF THE ROAD, GRADING, PARKING, BUILDING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AS APPROVAL OF ANY OTHER CONSTRUCTION (E.G. WATER,
SEWER, GAS, ELECTRICAL. ETC.). PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY
THE CITY PRIOR TO CONSTRUCTION. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS. ANY DEVIATION
FROM THE APPROVED PLANS WILL REQUIRE COORDINATION FOLLOWED BY WRITTEN APPROVAL FROM THE CITY.
15. A COPY OF THE APPROVED PLANS SHALL BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS.
6. THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY FIELD SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHALL
THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY COMPLETE. IT IS THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE APPLICANT'S
CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN, AND TO FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT
SHOWN HEREON THAT MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN. THE APPLICANT SHALL RECORD ON THE AS -BUILT DRAWINGS ALL
UNDOCUMENTED UTILITIES DISCOVERED AND ANY CHANGES TO THE APPROVED PLANS. THE APPLICANT SHALL IMMEDIATELY NOTIFY THE ENGINEER OF RECORD IF A
CONFLICT EXISTS.
7. VERTICAL DATUM SHALL BE NAVD 88 AND HORIZONTAL DATUM SHALL BE NAD 83 (WA STATE PLANE, NORTH), UNLESS OTHERWISE APPROVED BY THE CITY.
REFERENCE BENCHMARK, DATUM, AND ELEVATIONS SHALL BE NOTED ON THE PLANS.
8. ALL UTILITY TRENCH BACKFILL AND ROADWAY SUBGRADE SHALL BE COMPACTED TO 95% MAXIMUM DRY DENSITY PER SECTION 2-03.3(14)D - COMPACTION AND
MOISTURE CONTROL TESTS OF THE WSDOT STANDARD SPECIFICATIONS. IN PERMEABLE PAVEMENT AND OTHER INFILTRATION AREAS ALL TRENCH BACKFILL SHALL
BE FIRM AND UNYIELDING BUT IN NO CASE SHALL BE COMPACTED TO MORE THAN 92% OF MAXIMUM DRY DENSITY.
9. OPEN CUTTING OF EXISTING ROADWAYS FOR STORM DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY AND NOTED ON THESE
APPROVED PLANS, ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH THE CITY TRENCH RESTORATION STANDARDS.
10. ALL PIPE AND STRUCTURES SHALL BE STAKED FOR SURVEY LINE AND GRADE PRIOR TO THE START OF CONSTRUCTION. WHERE SHOWN ON THE PLANS OR WHERE
DIRECTED BY THE CITY, THE EXISTING MANHOLES, CATCH BASINS, OR INLETS SHALL BE ADJUSTED TO THE GRADE AS STAKED.
11. ALL FLOW CONTROL FACILITIES SHALL BE INSTALLED AND IN OPERATION PRIOR TO, OR IN CONJUNCTION WITH, ANY CONSTRUCTION ACTIVITY UNLESS OTHERWISE
APPROVED BY THE CITY.
12. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH THE CURRENT STATE OF WASHINGTON STANDARD
SPECIFICATION FOR ROAD AND BRIDGE CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE FOUNDATION
MATERIAL, AS WELL AS PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE
SUPPORTED ON A UNIFORMLY DENSE, UNYIELDING BASE. ALL PIPE BEDDING AND BACKFILL SHALL BE AS SHOWN ON THE CITY STANDARD PLAN 220.00, 220.10, AND
220.20.
111 STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT TREATMENT 1, 2, OR 5 INSIDE AND OUTSIDE.
14. ALL DRAINAGE STRUCTURES SUCH AS CATCH BASINS AND MANHOLES SHALL BE FITTED WITH DUCTILE IRON, BOLT -LOCKING LIDS PER THE CITY STANDARD PLAN
204,10, 204,20, 204,30, 204,40, AND 204.50. STRUCTURES SHALL HAVE:
• RECTANGULAR OR ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND OUTSIDE OF THE ROADWAY.
• ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND LOCATED WITHIN THE ROADWAY, BUT OUTSIDE OF THE CURB/GUTTER LINE.
• ROUND, SOLID LIDS DISPLAYING THE CITY LOGO WHEN WITHIN THE PUBLIC RIGHT-OF-WAY OR IN AN EASEMENT TO THE CITY. PRIVATE STRUCTURE LIDS OUTSIDE
PUBLIC RIGHT-OF-WAY AND EASEMENTS TO THE CITY SHALL NOT DISPLAY THE CITY LOGO.
115. BUILDINGS AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1 EASEMENT WIDTHS AND BUILDING SETBACKS LINES OF THE RENTON SWDM.
16. LIDS OF MANHOLES/CATCH BASINS WITHIN PUBLIC RIGHT-OF-WAY SHALL NOT BE ADJUSTED TO FINAL GRADE UNTIL AFTER PAVING. ALL MANHOLE/CATCH BASIN RIMS
SHALL BE ADJUSTED TO BE FLUSH WITH FINAL FINISHED GRADES, UNLESS OTHERWISE SHOWN.
17. ALL DRIVEWAY CULVERTS LOCATED WITHIN CITY RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE
DRIVEWAY TO THE BOTTOM OF THE DITCH.
18. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY ROCK PLACED TO A MINIMUM DEPTH OF ONE (1) FOOT
AND SHALL MEET THE FOLLOWING SPECIFICATIONS:
• 4 - 8 INCH ROCK / 40 - 70% PASSING;
• 2 - 4 INCH ROCK / 30 - 40% PASSING, AND
• LESS THAN 2 INCH ROCK 110 - 20% PASSING.
19. FOOTING DRAINAGE SYSTEMS AND ROOF DOWNSPOUT SYSTEMS SHALL NOT BE INTERCONNECTED AND SHALL SEPARATELY CONVEY COLLECTED FLOWS TO THE
CONVEYANCE SYSTEM OR FLOW CONTROL FACILITY ON THE SITE, UNLESS APPROVED BY THE CITY. FOOTING DRAINS SHALL NOT BE CONNECTED TO ON -SITE BMPS.
20. THE END OF EACH STORM DRAIN STUB SHALL BE CAPPED. A CLEANOUT TOPPED WITH A BOLT -LOCKING LID MARKED "STORM" OR "DRAIN" SHALL BE LOCATED AT THE
PROPERTY LINE OR AT THE POINT OF CONNECTION OF A PRIVATE STORM DRAINAGE CONVEYANCE SYSTEM PER THE CITY STANDARD PLAN 227.00.
21. ALL STORM SYSTEM EXTENSIONS SHALL BE STAKED FOR LINE AND GRADE BY A SURVEYOR LICENSED IN WASHINGTON STATE, AND CUT SHEETS SHALL BE PROVIDED
TO THE CITY PRIOR TO CONSTRUCTION.
22. ALL NEWLY -INSTALLED AND NEWLY -REHABILITATED (PUBLIC AND PRIVATE) STORM CONVEYANCE SYSTEMS SHALL BE INSPECTED BY MEANS OF REMOTE CCTV
ACCORDING TO THE CITY STANDARD PLAN 266.00. CCTV INSPECTIONS AND REPORTS SHALL BE SUBMITTED TO THE CITY PRIOR TO RECEIVING APPROVAL TO INSTALL
PROJECT CURBS, GUTTERS AND/OR PAVEMENT.
23. ALL STORM SYSTEMS AND CONNECTIONS TO EXISTING MAINS SHALL BE TESTED IN ACCORDANCE WITH SECTION 7-04.3(1) OF THE WSDOT STANDARD SPECIFICATIONS
AND IN THE PRESENCE OF A REPRESENTATIVE OF THE CITY. STORM DRAIN STUBS SHALL BE TESTED FOR ACCEPTANCE AT THE SAME TIME THE MAIN STORM IS
TESTED.
24. FOR ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE DEVELOPMENT SITE, TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL
EITHER STOCKPILE AND REDISTRIBUTE THE EXISTING DUFF LAYER AND NATIVE TOPSOIL OR AMEND THE SOIL WITH COMPOST IN ACCORDANCE WITH STANDARD PLAN
264.00.
25. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY DOES NOT RELIEVE THE APPLICANT OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY
CONNECTED WITH STORMWATER DISPOSAL. THE CITY DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND MAINTENANCE OF THE STORM
SYSTEM PROVIDED DURING CONSTRUCTION.
26, ADEQUATE SAFEGUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER ACTIONS NEEDED TO PROTECT THE LIFE, HEALTH, AND SAFETY OF
THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK SHALL BE PROVIDED. ANY WORK WITHIN THE TRAVELED
RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED BY THE CITY. ALL SECTIONS OF THE WSDOT
STANDARD SPECIFICATIONS 1-10 TEMPORARY TRAFFIC CONTROL SHALL APPLY.
27. PROJECTS LOCATED WITHIN THE CITY'S AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH SPECIAL REQUIREMENT #6 OF THE RENTON SWDM AND AQUIFER
PROTECTION REGULATIONS (RMC 4-3-050).
28. PLACEMENT OF SURFACE APPURTENANCES (CATCH BASIN/MANHOLE LIDS, CLEANOUTS, INLETS, ETC.) IN THE STREET TRAVEL LANE WHEEL PATH, INTERSECTIONS OF
STREET TRAVEL LANES, BIKE LANES, SIDEWALKS, AND CROSSWALKS SHALL BE AVOIDED WHENEVER POSSIBLE. ANY SURFACE APPURTENANCE PLACED IN A
SIDEWALK OR CROSSWALK SHALL BE FITTED WITH A NON -SLIP OR NON-SKID LID PER ADA REQUIREMENTS.
129. CLEARLY LABEL PUBLIC AND PRIVATE SYSTEMS ON THE PLANS. PRIVATE SYSTEMS SHALL BE MAINTAINED BY THE APPLICANT.
130. MINIMUM COVER OVER STORM DRAINAGE PIPE SHALL CONFORM TO TABLE 4.2.1.A2 OF THE RENTON SWDM.
31. CONSTRUCTED PERMEABLE PAVEMENT SHALL BE PERMEABLE ENOUGH TO ABSORB WATER AT A MINIMUM RATE OF 20 INCHES PER HOUR IMMEDIATELY AFTER THE
PAVEMENT SURFACE HAS BEEN WETTED CONTINUOUSLY FOR AT LEAST 10 MINUTES. COMPLIANCE WITH THIS MINIMUM RATE SHALL BE CHECKED PRIOR TO
CONSTRUCTION APPROVAL OF THE PAVEMENT. COMPLIANCE MAY BE CHECKED USING A SIMPLE BUCKET TEST IN WHICH 5 GALLONS OF WATER IS POURED ONTO THE
PAVEMENT SURFACE ALL AT ONCE. IF ONLY A MINOR AMOUNT OF WATER PONDS OR RUNS OFF THE SURFACE, THEN THE PAVEMENT IS CONSIDERED TO MEET THE
MINIMUM RATE OF ABSORPTION. AT LEAST ONE TEST SHALL BE CONDUCTED PER 1,000 SQUARE FEET OF PERMEABLE PAVEMENT. IF THIS TEST IS NOT CONCLUSIVE,
THEN ANOTHER TEST PER ASTM C1701 SHALL BE CONDUCTED. FOR LARGE AREAS (E.G., PARKING AREAS), TESTING OBSERVATION MAY BE ACCOMPLISHED WHILE
WALKING BEHIND A SLOWLY MOVING WATER TRUCK DISCHARGING WATER AT A RATE SIMILAR TO THE BUCKET TEST. PERMEABLE PAVERS SHALL BE TESTED USING
ASTM C1781.
TOPOGRAPHY, BOUNDARY, AND UTILITIES STATEMENT
FURR ENGINEERING SERVICES PLLC. DOES NOT WARRANT THE TOPOGRAPHY,
BOUNDARY, AND/OR EXISTING UTILITIES SHOWN ON THESE PLANS. IT IS THE
CONTRACTORS' RESPONSIBILITY TO HAVE ALL EXISTING IMPROVEMENTS FIELD
VERIFIED PRIOR TO CONSTRUCTION. ANY SUBSURFACE EXPLORATION OF EXISTING
UNDERGROUND UTILITIES (POWER, WATER, SEWER, TELECOM, ETC.) SHALL BE
PERFORMED BY THE CONTRACTOR. DISCREPANCIES BETWEEN WHAT IS SHOWN ON THE
PLANS AND LOCATED BY THE CONTRACTOR SHALL BE BROUGHT TO THE ATTENTION OF
FURR ENGINEERING SERVICES PLLC.. PRIOR TO CONSTRUCTION ACTIVITIES.
Know what's below.
Call before you dig.
8/23/2024
NE 1/4 OF THE SW 1/4 OF SEC. 20, T. 23N.7 R. 05 E, W.M.
GRANT PLACE TOWNHOMES
Utility Specifications
Vater Utility Notes and Specifications
THESE NOTES SHALL APPEAR ON PROJECTS FOR THE WATER UTILITY.
1. All work material shall be in conformance with the standards and specifications of the
City of Renton Planning/Building/Public Works Department and the latest edition of the
WSDOT/APWA Standards and Specifications, as approved and modified by the City of
Renton in the Renton Standard Plans & Specifications. A set of approved plans shall be
kept on site at all times during construction.
2. The hours of work in the street right of way shall be limited to 8:30 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 911 shall be notified 24
hours in advance of any work in the right of way,
3. All locations of existing utilities shown are approximate and it shall be the contractor's
responsibility to verify the true and correct location so as to avoid damage or
disturbance. For utility locates call 48-hour locators 800-424-5555.
4. An approved Traffic Control Plan is required to be submitted at the Pre -Construction
meeting.
5. Datum for Vertical Control shall be North American Vertical Datum 1988 Meters and for
Horizontal Control shall be North American Datum 1983/1991 Meters unless otherwise
approved by the City of Renton Public Works Department. Reference benchmark and
elevations are noted on the plans.
6. All watermain pipe 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
shall conform to AWWA C104 or latest revision. Pipe joints to be push -on or mechanical
joint. Bedding to be Class C. All ductile iron pipe and fittings shall be polyethylene
wrapped per ANSI/AWWA C105/A21.5-93 Standards.
7. Cast iron and ductile iron fittings shall be cement lined, pressure rated as noted on
plans, and in accordance with ANSI/AWWA C110/A21.10-87. Cement lining shall be in
accordance with ANSI/AWWA C104/421/4-90. If fittings are 3 to 12 inches in diameter
and have mechanical joints, the fittings shall in accordance with either ANSI/AWWA
C110-A21.10-87 or ANSI/AWWA C153/A21.53-94. Three (3) inch to 12 inch diameter
fittings, which have mechanical joints and/or flanged joints, shall be in accordance with
ANSI/AWWA C110/A21.10.87 or a combination of ANSI/AWWA C110/A21.10.87 and
ANSI/AWWA C153/A21.53-94 such that the portion of the fitting with a mechanical
joint(s) may be with ANSI/AWWA C153/A21.53-94 and that portion of the fitting with
flanged joint(s) shall be in accordance with AWWA C110/A21,10-87. Acceptance testing
in accordance with section 53.53 of ANSI/AWWA section 10-4.3 of ANSI/AWWA
C110/A21.10-87 shall be obtained by the contractor and transmitted to the owner.
8. Gate valves shall be iron body, bronzed -mounted, double disc with bronze wedging
device and 0-ring stuffing box (AWWA C500) or of resilient seated type (AWWA C509).
Valves shall be designed for a minimum water operating pressure of 200 psi. Gate
valves shall be Clow List 14, Mueller Company NO. A2380 or M & H.
9. Fire hydrants shall be Corey type (opening with the pressure) or compression type
(opening against pressure) conforming to AWWA C-502-85 with a 6 inch mechanical
joint inlet and a main valve opening (M.V.O.) of 5-1/4 inch, two 2-1/2 inch hose nozzles
with National Standard Threads 7-1/2 threads per inch and one 4 inch pumper nozzle
with the new Seattle Pattern 6 threads per inch, 60 degrees V. Threads: outside
diameter of male thread 4.875 and root diameter 4.6263. Hydrants shall have a 1-1/4
inch pentagon operating nut opened by turning counter clockwise (left).
10. The two 2-1/2 inch hose nozzles shall 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.
11. The 4 inch pumper nozzle shall be fitted with a Storz adapter, 4 inch Seattle Thread x 5
inch Storz. Storz adapter shall be forged and/or extruded 6061-T6 aluminum alloy,
hardcoat anodized. Threaded end portion shall have no lugs and two set screws 180
degrees apart. Storz face to be metal, no gasket to weather. Storz cap to have
synthetic molded rubber gasket, and shall be attached to hydrant adapter with 1/8 inch,
coated, stainless steel, aircraft cable.
12. Fire hydrants shall be painted with two coats of paint. Preservative paint number 43-
655 safety yellow or approved equal.
13. Pumper connection to face roadway assembly.
14. Fire hydrants shall be installed per City of Renton Standard Detail for fire hydrants,
latest revision.
15. All watermains 10 inches and smaller to maintain a minimum cover of 36 inches below
finish grade. All watermain 12 inches and larger shall be at a minimum of 48 inches
below finish grade. Where utility conflicts occur, watermains are to be lowered to clear.
16. All watermains 6 inches and larger in diameter shall be cleaned with pipe cleaning
"PIGS" prior to disinfection. The "Poly pigs" shall be Girard Industries Aqua Swab -AS or
approved equal, 2 lb/cu. ft. density foam with 90A durometer urethane rubber coating
on the rear of "PIG" only.
17. "PIGS" shall be cylinder shaped with bullet nose or square end. The contractor will
perform the cleaning operation,
18. All watermains and services shall be pressure tested to a minimum of 200 psi or 150 psi
over operating pressure, in accordance with the specifications of the City of Renton and
the Washington State Health Department. All pressure testing 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 Renton
Utility Specifications
Vater Utility Notes and Specifications
THESE NOTES SHALL APPEAR ON PROJECTS FOR THE WATER UTILITY.
1. All work material shall be in conformance with the standards and specifications of the
City of Renton Planning/Building/Public Works Department and the latest edition of the
WSDOT/APWA Standards and Specifications, as approved and modified by the City of
Renton in the Renton Standard Plans & Specifications. A set of approved plans shall be
kept on site at all times during construction.
2. The hours of work in the street right of way shall be limited to 8:30 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 911 shall be notified 24
hours in advance of any work in the right of way.
3. All locations of existing utilities shown are approximate and it shall be the contractor's
responsibility to verify the true and correct location so as to avoid damage or
disturbance. For utility locates call 48-hour locators 800-424-5555.
4. An approved Traffic Control Plan is required to be submitted at the Pre -Construction
meeting.
5. Datum for Vertical Control shall be North American Vertical Datum 1988 Meters, and for
Horizontal Control shall be North American Datum 1983/1991 Meters unless otherwise
approved by the City of Renton Public Works Department. Reference benchmark and
elevations are noted on the plans.
6. All watermain pipe 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
shall conform to AWWA C104 or latest revision. Pipe joints to be push -on or mechanical
joint. Bedding to be Class C. All ductile iron pipe and fittings shall be polyethylene
wrapped per ANSI/AWWA C105/A21.5-93 Standards.
7. Cast iron and ductile iron fittings shall be cement lined, pressure rated as noted on
plans, and in accordance with ANSI/AWWA C110/A21.10-87. Cement lining shall be in
accordance with ANSI/AWWA C104/421/4-90. If fittings are 3 to 12 inches in diameter
and have mechanical joints, the fittings shall in accordance with either ANSI/AWWA
C110-A21.10-87 or ANSI/AWWA C153/A21.53-94. Three (3) inch to 12 inch diameter
fittings, which have mechanical joints and/or flanged joints, shall be in accordance with
ANSI/AWWA C110/A21.10.87 or a combination of ANSI/AWWA C110/A21.10.87 and
ANSI/AWWA C153/A21.53-94 such that the portion of the fitting with a mechanical
joint(s) may be with ANSI/AWWA C153/A21.53-94 and that portion of the fitting with
flanged joint(s) shall be in accordance with AWWA C110/A21.10-87. Acceptance testing
in accordance with section 53.53 of ANSI/AWWA section 10-4.3 of ANSI/AWWA
C110/A21.10-87 shall be obtained by the contractor and transmitted to the owner.
8. Gate valves shall be iron body, bronzed -mounted, double disc with bronze wedging
device and 0-ring stuffing box (AWWA C500) or of resilient seated type (AWWA C509).
Valves shall be designed for a minimum water operating pressure of 200 psi. Gate
valves shall be Clow List 14, Mueller Company NO. A2380 or M & H.
9. Fire hydrants shall be Corey type (opening with the pressure) or compression type
(opening against pressure) conforming to AWWA C-502-85 with a 6 inch mechanical
joint inlet and a main valve opening (M.V.O.) of 5-1/4 inch, two 2-1/2 inch hose nozzles
with National Standard Threads 7-1/2 threads per inch and one 4 inch pumper nozzle
with the new Seattle Pattern 6 threads per inch, 60 degrees V. Threads: outside
diameter of male thread 4.875 and root diameter 4.6263. Hydrants shall have a 1-1/4
inch pentagon operating nut opened by turning counter clockwise (left),
10. The two 2-1/2 inch hose nozzles shall 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.
11. The 4 inch pumper nozzle shall be fitted with a Storz adapter, 4 inch Seattle Thread x 5
inch Storz. Storz adapter shall be forged and/or extruded 6061-T6 aluminum alloy,
hardcoat anodized. Threaded end portion shall have no lugs and two set screws 180
degrees apart. Storz face to be metal, no gasket to weather. Storz cap to have
synthetic molded rubber gasket, and shall be attached to hydrant adapter with 1/8 inch,
coated, stainless steel, aircraft cable.
12. Fire hydrants shall be painted with two coats of paint. Preservative paint number 43-
655 safety yellow or approved equal.
13. Pumper connection to face roadway assembly.
14. Fire hydrants shall be installed per City of Renton Standard Detail for fire hydrants,
latest revision.
15. All watermains 10 inches and smaller to maintain a minimum cover of 36 inches below
finish grade. All watermain 12 inches and larger shall be at a minimum of 48 inches
below finish grade. Where utility conflicts occur, watermains are to be lowered to clear.
16. All watermains 6 inches and larger in diameter shall be cleaned with pipe cleaning
"PIGS" prior to disinfection. The "Poly pigs" shall be Girard Industries Aqua Swab -AS or
approved equal, 2 lb/cu. ft. density foam with 90A durometer urethane rubber coating
on the rear of "PIG" only.
17. PIGS shall be cylinder shaped with bullet nose or square end. The contractor will
perform the cleaning operation.
18. All watermains and services shall be pressure tested to a minimum of 200 psi or 150 psi
over operating pressure, in accordance with the specifications of the City of Renton and
the Washington State Health Department. All pressure testing 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 Renton
Standard Plans & Specifications 7-11.3(11). The loss in pressure shall not exceed 5 psi
during the 2 hour test period.
19. All watermains and services shall be disinfected by the injection of a 50 ppm (minimum
concentration) chlorine/water solution. Dry Calcium Hypochlorite shall NOT be placed in
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 Specifications referenced above.
20. A pre -construction conference is required prior to any construction. A minimum of five
(5) working days notice is required for scheduling.
21. Twenty-four (24) hours notice will be required prior to starting new construction.
22. It shall be the contractor's responsibility to secure all necessary permits prior to starting
construction.
23. Installation of corporate stops, water services, lines and meters shall not be done until
all service agreements, meter applications, construction permits, and payment of fees
have been made to the City of Renton.
24. All connection to existing mains is to be accomplished by the City of Renton, except wet
taps, which may be made by approved wet tap contractors with prior approval from the
Public Works Department. All necessary excavation and materials are to be supplied by
the contractor and be on -site prior to City notifications.
25. Inspection will be accomplished by a representative of the City of Renton. It shall be
the contractor's responsibility to notify Development Services twenty four (24) hours in
advance of backfilling all construction. The contractor, as well as the engineers, shall
keep as -built drawings.
26. Contractor to provide plugs and temporary blow -off assemblies for testing and purity
acceptance prior to final tie-in.
27. 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
Public Works Department.
28. Asphalt and concrete street paving shall be sawcut to a minimum depth of two (2)
inches. Oil mat streets may be spade cut. All surface concrete, pavement, sidewalks,
curb, gutters, and driveway approaches shall be sawcut to a minimum depth of two (2)
inches or removed to an existing expansion joint.
29. A temporary cold mix asphalt patch shall be placed on the day of initial excavation with
a permanent, sealed patch to be placed, to City of Renton policy, within 10 days. Call
for subgrade inspection prior to placement of final patch.
30. For City projects such as telemetry conduit, the PVC pipe used shall be All chemical
process lines shall be schedule 80 PVC pipe. Schedule 40 in unimproved areas and
schedule 80 PVC pipe under improved areas.
FURR
/ \SERVIMS, Pu.c
4715142nd PI. SW #B,
Edmonds, WA 98026
ph 206.890.8291 R-429003
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
DEVELOPMENT ENGINEERING
NJanders 09/16/2024
SURVEYED: SCALE, DATE:
"Eff' NAVD 1988 GRANT PLACE TOWNHOMES / /
4 PER CITY COMMENTS DAF 08/26/24 1 "=30' HORIZONTAL: NAD ,sas/,ss, CITY 0 F 11 21 23
3 PER CITY COMMENTS DAF 07/29/24 DESIGNED: 1600 GRANT AVE S RENTON, WA 98055 FIELDBOOK:
2 PER CITY COMMENTS DAF 05/21/24 DRAWN: TJW, FEM RENTON PARCEL 2023059052 PAGE:
• DRAWING N0:
1 PER CITY COMMENTS DAF 04/04/24 CHECKED: ONE INCH DATUM
DAF AT FULL SCALE Planning/Building/Public Works Dept. 20069
IF NOT ONE INCH
N 0 . REVISION BY DATE AP P R APPROVED: SCALE ACCORDINGLY NOTES SHEET: OF,
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