RESOLUTION NO. 6490-2022
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SEBASTOPOL
ADOPTING THE WATER AND SEWER STANDARD DETAILS
WHEREAS, the City of Sebastopol has standard details, more commonly referred to as “Standards”, for construction of public improvements, which include streets, water, sewer, and storm drain facilities to provide minimum standards and engineering and construction best practices for private developers and contractors; and
WHEREAS, it is necessary to periodically update the Standards to remain compliant with current engineering and construction best practices, and state and federal regulations; and WHEREAS, the City of Sebastopol last adopted the Street Standards by Council passage of Resolution No. 6371 (2021) and the Water and Sewer Standards by Council passage of Resolution No. 4978 (1998); and
WHEREAS, the Water and Sewer Standards have now been updated, the City Engineer has reviewed these updates and the updated Water and Sewer Standards are ready to be adopted; and
WHEREAS, minor discrepancies may be found from time to time necessitating the City Engineer to periodically make minor changes to the Water and Sewer Standards to correct errors, conflicts, and discrepancies.
NOW, THEREFORE BE IT RESOLVED, that the City Council of the City of Sebastopol, as follows:
1. Finds the foregoing recitals are true and correct.
2. Adopts the Water and Sewer Standard Details (“Water and Sewer Standards”) dated October 2022 attached hereto as Exhibit “A,” and.
3. Authorizes the City Engineer to make minor changes to the Water and Sewer Standards from time to time to correct errors, conflicts, and discrepancies.
The above and foregoing Resolution was duly passed, approved, and adopted at a meeting by the City Council on the 15th day of November 2022.
I, the undersigned, hereby certify that the foregoing Resolution was duly adopted by City of Sebastopol City Council following a roll call vote:
VOTE:
Ayes: Councilmembers Glass, Gurney, Rich, Vice Mayor Hinton and Mayor Slayter Noes: None
Absent: None
Abstain: None
APPROVED:
Mayor Patrick Slayter
11/15/2022
ATTEST: ______________________________
Mary Gourley, Assistant City Manager/City Clerk, MMC
APPROVED AS TO FORM:
Larry McLaughlin, City Attorney
11/15/2022
Match existing grade NON-PAVED AREAS NOTES: Aggregate base or select native backfill as approved at 90% relative compaction 6" 12"6" 6" Bedding material ROADWAYS / SIDEWALKS Where existing street is concrete overlaid with AC, the concrete section removed by trenching shall be replaced with AC to the required structural section. Final trench paving is required to be expanded to a painted lane stripe, existing pavement patch, the lip of gutter or edge of pavement where such street feature is within 3 feet of the final saw cut. If existing pavement adjacent to trench is cracked or damaged, final trench paving shall be extended to a location where a clean, smooth edge can be established. Permanent paving must be completed within 30 days. AC or cutback (1" thick) may be placed as a temporary surface in roadway areas and shall be maintained until permanent paving is completed. Where warranted and at the discretion of the Public Works Inspector, trench plates may be used for up to 2 weeks. Trench plates shall have a skid resistant surface, secured with 24" wide collar of cutback around all sides of plate, and tapered to provide smooth transitions. Temporary surface and material shall be completely removed prior to placement of permanent pavement. Contractor shall be responsible to provide adequate shoring to keep adjacent material from running into trench. Voids under pavement sections adjacent to the trench shall be filled with a 2 sack slurry or the pavement over such voids shall be removed and the area backfilled with Class 2 aggregate and compacted to 95% relative compaction. 1. 2. 3. 4. 5. 6" 12" New AC trench plug shall be placed in 2 lifts (with tack coat) and shall match existing A.C. thickness plus 1" (4" min - 7" max) Class 2 aggregate base rock at 95% relative compaction 6" 6" Final saw cut (per note 2) Initial cut Existing pavement (thickness varies) Bedding material 6" MIN 6" MIN Bedding material for all pipes except water service laterals shall be 3 8 " crushed chips. Poly water services shall be bedded in #4 grade salt-fee sand.
TRENCH BACKFILL AND RESURFACING
SCALE: NONE DRAWN: NB APPROVED:
STD. NO.
R-1.4
ML DATE: OCT 2022
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TEE
DEAD END & EACH SIDE OF A VALVE
RUN RUN BRANCH
RESTRAINED LENGTHS PROVIDED BY DESIGN ENGINEER SUPERSEDE THIS STANDARD
HORIZONTAL BENDS
VERTICAL BENDS
4"∅ PIPE "L" = 58'
6"∅ PIPE "L" = 82'
8"∅ PIPE "L" = 107'
12"∅ PIPE "L" = 131'
4"∅ PIPE "L" = 50'
6"∅ PIPE "L" = 66'
8"∅ PIPE "L" = 91'
12"∅ PIPE "L" = 115'
4"∅ PIPE "L" = 2'
6"∅ PIPE "L" = 3'
8"∅ PIPE "L" = 3'
12"∅ PIPE "L" = 4'
11-1/4° BEND
4"∅ PIPE "L" = 4'
6"∅ PIPE "L" = 5'
8"∅ PIPE "L" = 6'
12"∅ PIPE "L" = 7'
22-1/2° BEND
4"∅ PIPE "L" = 7'
6"∅ PIPE "L" = 10'
8"∅ PIPE "L" = 12'
12"∅ PIPE "L" = 15'
45° BEND
4"∅ PIPE "L" = 16'
6"∅ PIPE "L" = 23'
8"∅ PIPE "L" = 29'
12"∅ PIPE "L" = 35'
90° BEND
4"∅ PIPE "L" = 24'
6"∅ PIPE "L" = 34'
8"∅ PIPE "L" = 45'
12"∅ PIPE "L" = 55'
UPPER "L" / 45° BEND
4"∅ PIPE "L" = 12'
6"∅ PIPE "L" = 17'
UPPER "L" / 22-1/2° BEND
8"∅ PIPE "L" = 22'
12"∅ PIPE "L" = 27'
4"∅ PIPE "L" = 5'
6"∅ PIPE "L" = 7'
8"∅ PIPE "L" = 10'
12"∅ PIPE "L" =12'
LOWER "L" / 45° BEND
4"∅ PIPE "L" = 3'
6"∅ PIPE "L" = 4'
LOWER "L" / 22-1/2° BEND
8"∅ PIPE "L" = 5'
12"∅ PIPE "L" = 7'
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PROFILE VIEW
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