02720 Sanitary Sewer Collection System - City of Daly City
02720 Sanitary Sewer Collection System - City of Daly City
02720 Sanitary Sewer Collection System - City of Daly City
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. Optimum moisture content in percentc. Maximum dry density in pounds per cubic footTests shall be taken at locations designated by the <strong>City</strong>'s Project Inspector.3.09 CONNECTIONS TO EXISTING MANHOLESA. Pipe connections to existing manholes shall be done under the direction <strong>of</strong> the<strong>City</strong>'s Project Inspector and other applicable requirements specified for newmanholes, including all necessary concrete work, cutting, and shaping <strong>of</strong> channel.B. All PVC pipe entering or leaving a manhole shall have a rubber sealing gasket assupplied by the pipe manufacturer, firmly seated perpendicular to the pipe axis,around the pipe exterior and cast into the structure base or near the wall center as awater stop. Water stop may also consist <strong>of</strong> a manhole coupling with rubber sealingrings cast into the structure base.C. Existing flow shall be maintained through a bypass. A bypass plan shall besubmitted and the contractor shall be solely responsible for maintaining the bypassand shall be liable for any fines levied by any agency as a result <strong>of</strong> any spill oroverflow.3.10 CONNECTIONS TO EXISTING PIPEA. The Contractor shall provide fittings or adapters required to connect new pipe toexisting pipe. Detail drawings <strong>of</strong> such fittings or adapters and the method <strong>of</strong>connection shall be submitted to the <strong>City</strong>'s Proj ect Inspector for approval.B. Pipelines shall be connected to existing mains as indicated on the drawing. Eachconnection shall be made at a time and in a manner that will result in the leastinterruption <strong>of</strong> service. Refer to Paragraph 3.26 <strong>of</strong> this Section for additionalrequirements.3.11 SIDE SEWER CONNECTIONS TO MAIN SEWERSA. Side sewer and lateral size shall be four inches (4") for single-family units and sixinches (6") minimum for commercial or industrial buildings and multiple familyunits.Six inch and larger connections to main sewers are to be made at a manhole. Insome circumstances, a new manhole may need to be installed at the applicant'sexpense and with the required permits.Section <strong>02720</strong> - 28
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