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Water Utility Notes and Specifications
1. THESE NOTES SHALL APPEAR FOR PROJECTS FOR THE WATER UTILITY.
2. All work material shall be in conformance with the standards and specifications of the City of
Renton Planning /Building /Public Works Department and the 1996 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.
3. 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.
4. All locations of existing utilities shown are approximate and it shall be the contractors
responsibility to verity the true and correct location so as to avoid damage or disturbance. For
utility locates call 48 -hour locators 800- 424 -5555.
5. An approved Traffic Control Plan is required to be submitted at the Pre - Construction meeting.
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 C704/421/4 -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.
B. Gate vales shall be iron body, bronzed - mounted, double disc with bronze wedging device and
0 -ring stuffing box (ANNA 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.
91 Fire hydrants shall be Corey type (opening with the pressure) or compression type (opening
against pressure) conforming to AWWA C- 502 -55 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 some 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
' molded rubber gasket, and shall be
v synthetic Storz ca to have metal, no gasket to weather. S p y 9
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
accordance with Section
7-11.3(12)E or
7-11.3(12)F of
Chlorine shall be m
etered
injected in
laid. metered/ injected
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 contractors 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
contractors 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.
M
Surface Water Drainage Notes and Specifications
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE - CONSTRUCTION
MEETING MUST BE HELD WITH THE CITY OF RENTON PLAN REVIEWER.
2. All construction shall be in accordance with the current Standard Specifications for
Road, Bridge and Municipal Construction prepared by WSDOT and the American Public
Works Association (APWA), as amended by the City of Renton Public Works Department.
3. The surface water drainage system shall be constructed according to the approved
plans, which are on file in the Public Works Department. Any deviation from the
approved plans will require written approval from the City of Renton Public Works
Department, Surface Water Utility Section.
4. A copy of these approved plans must be on the job site whenever construction is in
progress.
5. Datum shall be NAVD 88 unless otherwise approved by the City of Renton Public
Works Department. Reference benchmark and elevations ore as noted on the plans.
6. All sedimentation /erosion facilities must be in operation prior to clearing and building
construction, and they must be satisfactorily maintained until construction is completed
and the potential for on -site erosion has passed.
7. All retention /detention facilities must be installed and in operation prior to or in
conjunction with all construction activity unless otherwise approved by the Public Works
Department, Surface Water Utility Section.
B. Grass seed may be applied by hydroseeding. The grass seed mixture, other than City
of Renton approved standard mixes, shall be submitted by a Landscape Architect and
approved by the Public Works Department, Surface Water Utility Section.
9. All pipe and appurtenances shall be laid on a properly prepared foundation in
accordance with Section 7- 02.3(1) of 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 shall
be APWA Class "C with the exception of PVC pipe. All trench backfill shall be
compacted to minimum 95% for pavement and structural fill and 90% otherwise per
ASTM D- 1557 -70. Pea gravel bedding shall be 6 inches over and under PVC pipe.
10. Galvanized steel pipe and aluminized steel pipe for all drainage facilities shall have
asphalt treatment #1 or better inside and outside.
11. Structures shall not be permitted within 10 feet of the spring line of any storm
drainage pipe, or 15 feet from the top of any channel bank.
12. All catch basin grates shall be depressed 0.10 feet below pavement level.
13. Open cut road crossings through existing public right of way will not be allowed
unless specifically approved by City of Renton Planning /Building /Public Works
Administrator.
f roadside ditches where required, d shall be of sound
erosion protection o
14. Rock for q
P
quarry rock placed to a depth of one (1) foot and must meet the following
specifications:
4 - 8 inch rock / 40 - 70% passing;
2 - 4 inch rock / 30 - 40% passing; and
less than 2 inch rock / 10 - 20% passing.
15. All building downspouts and footing drains shall be connected to the storm drainage
system, unless approved by the City plan reviewer or Surface Water Utility Section. An
accurately dimensioned, certified as -built drawing of this drainage system will be
submitted to the City upon completion.
16. Issuance of the building or construction permits by the City of Renton does not
relieve the owner of the continuing legal obligation and /or liability connected with storm
surface water disposition. Further, the City of Renton does not accept any obligation for
the proper functioning and maintenance of the system provided during construction.
17. The Contractor shall be responsible for providing adequate safeguard, safety devices,
protective equipment, floggers, and any other needed actions to protect the life, health,
and safety of the public, and to protect property in connection with the performance of
work covered by the contract. Any work within the traveled right of way that may
interrupt normal traffic flow shall require a traffic control plan approve by the Public
Works Department, Transportation Systems Division. All sections of the WSDOT Standard
Specifications 1 -07 -23 Traffic Control shall apply.
18. Special drainage measures will be required if the project location is within the
aquifer protection area (APA).
EROSION CONTROL
19. All limits of clearing and areas of vegetation preservation as prescribed on the
plan(s) shall be clearly flagged in the field and observed during construction.
20. All required sedimentation /erasion control facilities must be constructed and in
operation prior to land clearing and /or construction to ensure that sediment laden water
does not enter the natural drainage system. All erosion and sediment facilities shall be
maintained in a satisfactory condition until such time that clearing and /or construction is
complete and potential for on -site erosion has passed. The implementation,
maintenance, replacement and additions to erosion /sedimentation control systems shall be
the responsibility of the permitee.
21. The erosion and sedimentation control systems depicted on this drawing are intended
to be minimum requirements to meet anticipated site conditions. As construction
progresses and unexpected or seasonal conditions dictate, the permitee shall anticipate
that more erosion and sedimentation control facilities will be necessary to ensure
complete siltation control on the proposed site. During the course of construction, it
shall be the obligation and responsibility of the perritee to address any new conditions
that may be created by the activities and to provide additional facilities, over and above
minimum requirements, as may be needed, to protect adjacent properties and water
quality of the receiving drainage system.
22. Approval of this plan is for erosion /sedimentation control only. It does not
constitute an approval of storm drainage design, size nor location of pipes, restrictom,
channels, or retention facilities.
23. During the time period of October let through April 30th, all project distributed soil
areas greater than 5,000 square feet, that are to be left un- worked for more than 12
hours, shall be covered by mulch, sodding or plastic covering.
24. In any area which has been stripped of vegetation and where no further work is
anticipated for a period 30 days or more, all disturbed areas must be immediately
stabilized with mulching, grass planting or other approved erosion control treatment
applicable to the time of year. Grass seeding alone will be acceptable only during the
months of April through September, inclusive. Seeding may proceed, however, whenever
it is in the interest of the permitee, but must be augmented with mulching, netting or
other treatment approved by the City of Renton, outside the specified time period.
25. For all erosion /sedimentation control ponds where the dead storage depth exceeds 6
inches, a fence is required with a minimum height of three (3) feet, 3:1 side slopes.
26. A temporary gravel construction entrance, 24 feet x 50 feet x B inches of 4 to 6
inch quarry spolls shall be located at all points of vehicular ingress and egress to the
construction site.
Sanitary Sewer Notes and Specifications
1. All work materials shall be in conformance with the standards and
specification of the City of Renton Utility Department and the latest edition of
the WSDOT /APWA Standards and Specifications. .
2. All construction shall be in accordance with "Standard Specifications for
Municipal Public Works Construction" prepared by Washington State Chapter
American Public Works Association, latest edition (APWA) and City of Renton
Standard Specifications.
3. All locations of existing utilities shown are approximate and it shall be the
contractors responsibility to verify the true and correct location so as to avoid
damage or disturbance.
4. Contractor is solely responsible for the means, methods and sequences of
construction and for the safety of workers and others on the construction site.
5. It shall be the responsibility of the contractor to obtain street use and any
other related permits prior to any construction.
6. Plans approved by the City of Renton, Public Works Department shall take
precedence over all other plans.
7. A copy of these approved plans must be on the job site whenever
construction is in progress.
B. The contractor shall provide the City of Renton with an as -built drawing of
the sanitary sewer system, which has been stamped and signed by a licensed
professional engineer or licensed professional surveyor.
9. Backfill 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 layer to 95 percent of maximum density. These compacted layers
must extend for one pipe diameter on each side of the pipe or to the side of
the trench. Materials to complete the fill over pipe shall be the same as
described.
s
10. Open cut road crossings for utility trenches on exi : s Ling traveled roadway shall
be backrilled with crushed rock and mechanically compcted. Cuts into the
existing asphalt shall be neabine cut with saw in a continuous line. A temporary
mix patch must be placed immediately after backfill and compaction. A
permanent hot mix patch shall be placed within 10 days and shall be per City
of Renton current standards.
11. Datum shall be City of Renton, 1988 NAVD.
12. NI disturbed areas shall be seeded and mulched or otherwise stabilized to
the satisfaction of the Department for the prevention of on -site erosion after the
completion of construction.
13. All pipe and appurtenances shall be laid on a properly prepared foundation in
accordance with Section 7 of the current State of Washington Standard
Specifications for Road and Bridge Construction. This shall include necessary
leveling of the trench bottom or the top of the foundation material, as well as
d bedding material to uniform grade so
placement and compaction of requre g 9
that the entire length of the pipe will be supported on a uniformly dense,
unyielding base. Pipe bedding shall be pea gravel 6 inches above and below the
pipe.
14. Sanitary sewer pipe shall be polyvinyl chloride (PVC) rubber gasketed ASTM D
3034, SDR 35, or ductile iron class 50.
15. In unimproved areas, manhole to extend minimum 6 inches and maximum 12
area cover must sloe in all directions
inches above finished grade. In paved p
to match paving.
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PATCH SURFACING TO
MEET AND MATCH EXISTING.
MINIMUM SECTION TO BE
3" A.C. PAV'T CL 8 OVER
4" CRUSHED ROCK BASE
NOTES:
1. PROVIDE 4" SAND BLANKET BEDDING FOR RIGID PIPE
2. ALL TESTING OF BACKFILL AND COMPACTION SHALL BE
IN CONFORMANCE WITH ASTM D -1557
T -PATCH
ROAD RESTORATION DETAIL
NOT TO SCALE
2" COMPACTED DEPTH
CLASS V A.C. PAVEMENT
PLACED IN 2 LIFTS
6" COMPACTED DEPTH CRUSHE
SURFACE COURSE
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TYPICAL PAVING SECTION (ON SITE)
NOT TO SCALE
5- 334303
RECOMMENDED FOR APPROVAL
By: Date:
By: Date:
By: Date:
/06 CITY OF RENTON
_ I 1:>EPAF1 TMENT OF= PUBLIC WORKS
Notes and Details
DESIGNED DAB 1/10/06 RENO
DRAWN STS - D7
CHECKED SCAT E AS SHOWN f$D Iu
APPROVED _..�
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JUN 22 9(0]
5 33430 }(.SCAN
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STRUCTURAL FILL
MATERIAL COMPACTED
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TO 95% OF MAX.
DENSITY
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VARIES
SUBGRADE OR STRUCTURAL
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FILL MATERIAL COMPACTED
TO 90% OF MAX. DENSITY
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GRAVEL BACKFILL FOR
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PIPE BEDDING COMPACTED
TO 95% OF MAX. DENSITY
%\
NOTES:
1. PROVIDE 4" SAND BLANKET BEDDING FOR RIGID PIPE
2. ALL TESTING OF BACKFILL AND COMPACTION SHALL BE
IN CONFORMANCE WITH ASTM D -1557
T -PATCH
ROAD RESTORATION DETAIL
NOT TO SCALE
2" COMPACTED DEPTH
CLASS V A.C. PAVEMENT
PLACED IN 2 LIFTS
6" COMPACTED DEPTH CRUSHE
SURFACE COURSE
g° 8
a 0 00 0
fv000, 0 0oa °o 000 °� 00$ o00oo
°00 0 00 0 0r� 0ago m oo db
° 0 0 0 00° 090 o0S0 00 0o db 0 ° o° oo do
TYPICAL PAVING SECTION (ON SITE)
NOT TO SCALE
5- 334303
RECOMMENDED FOR APPROVAL
By: Date:
By: Date:
By: Date:
/06 CITY OF RENTON
_ I 1:>EPAF1 TMENT OF= PUBLIC WORKS
Notes and Details
DESIGNED DAB 1/10/06 RENO
DRAWN STS - D7
CHECKED SCAT E AS SHOWN f$D Iu
APPROVED _..�
GO: w-55450Z "ANNFp
JUN 22 9(0]
5 33430 }(.SCAN
5 of