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Element 1 – Goal and Introduction <br /> <br />City of Pleasanton Sewer System Management Plan, July 2025 2 <br />• 2031 SSMP Update – Submittal to CIWQS by 7/31/31 <br />1.3: Sewer System Asset Overview <br />The City owns and operates a sewer system that serves a population of approximately 76,000 <br />in a 25 square mile service area that is shown in Figure 1-1. The sewer system consists of <br />approximately 253 miles of gravity sewers, approximately 4.9 miles of force mains, 8 siphons, <br />11 active pump stations, and approximately 21,000 service connections. The average dry <br />weather flow is approximately 6 million gallons per day (MGD). The City has agreements <br />with DSRSD and City of Livermore (for Ruby Hill area only) for wastewater treatment and is <br />a member of LAVWMA for treated wastewater disposal. The City also has an agreement with <br />Alameda County that allows sewage flows from their Castlewood Service Area to be <br />transported through the City’s collection system (including LS-10) for treatment at DSRSD. <br />Sewer service laterals are owned by the property owner and therefore are the responsibility of <br />the property owner to maintain. The City will not service, repair, rehabilitate, or replace any <br />portion of sewer service laterals from the building to the public sewer main. <br />Figure 1-1: Sewer Service Area <br />