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CITY�OF'RENTON SANITARY SEWER NOTES �O
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].. It shall be the responsibility of the contractor to �
avoid damage or disturbance to all existing utilities. o
The contractor shall contact all utilities including but o
not limited to telephone, power, sewer, water, gas and 2
cable T.V. for the purpose of identifying the correct rq
locations prior to construction. o
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2. Public sewers shall conform to the latest standards of v
"The Standard Specifications for Municipal Public Works r h
Construction of. the 'American Public �7orks Association Q`l- 2
and to the "Recommended Standards for Sewage Works" of yy =
the Great Lake-Upper Mississippi River Board of State _ W
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Sanitary, Engineers, and are subject to review by the °al 0 2
Department of Ecology of Washington. -�
ch)AN ti J
3. The public sewer shall be ductile iron,,AWWA 0151, cast J j
iron, I AWWA C106, or C108, with Type 2 pushon or Type 3
mechanical joints, together with cement mortar lining 3' W m va H
32" in accordance with AWWA- 'C104, or polyvinyl chloride UOL ¢ Q
(PVC) plastic pipe ASTM D 3034, rubber 'gasket for PVC
pipe shall meet ASTM 1869 standards. Minimum size shall
be 8" diameter.' oa
4. Manholes, shall be installed at the end of each line, at 61AD i; •®
all changes .of grade, size or • alignment, at distances no y� oV was •,,'!j °e
greater than 400' for 15" 'diameter sewers or smaller. ti,
Greater spacing may` be permitted in larger sewers.
Manholes shall -be a minimum of 48" diameter, shall be
precast concrete or cast in place: concrete, with steel
reinforcement.: steps will rbe placed at 1' spacing, r •'
conforming to current safety regulations.
The manhole Covers shall be 24" diameter cast irnn frame
.and ductile iron grate. No inside drop connections will
be allowed. All connections to the manhole shall match the existing inverts or have an outside drop connection.
5. All public sewer extensions shall conform to the
standards and be consistent with the City comprehensive '
sewerage plan.
6. Publi=c sewers installed in filled or unstable ground, in
areas with high ground water levels, or in areas where p "4
the potential for infiltration occurs, may be required - 1At'li�
to be cast or ductile iron pipe, or PVC plastic D 3034
pipe. S -l8 -88
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T. 5eddi Shall be
ng pep grave{:. When using P.V.G. pipe bedding will b2
G"ovar # G "osier pipe.
i'tECOMMENDED
FOR APFROVlIL
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4.—DATE: L G
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