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48 <br /> <br />Although there are no major water service constraints in the city, regular maintenance <br />and upgrading of the water delivery system is essential to provide adequate firefighting <br />capacity and ensure reliable service delivery. The water system remains vulnerable to <br />disruption in an earthquake. EBMUD’s pipelines cross active earthquake faults at 200 <br />locations within the service area. The utility is in the midst of a major seismic <br />improvement program, including upgrades to reservoirs, anchoring of equipment, <br />improvements to water treatment and pumping plants, and retrofitting of pipelines at <br />fault line crossings. <br />The City of San Leandro and EBMUD have undertaken a number of programs to conserve <br />water and reduce the need for developing new supplies. <br /> <br />3.13.2 Wastewater <br />San Leandro is served by two different sanitary sewer systems. About two-thirds of the <br />city, including most of northern and central San Leandro, is served by a City-owned and <br />operated system. The remainder of the city, including Washington Manor and most of <br />southern San Leandro, is served by the Oro Loma Sanitary District. The Oro Loma District <br />also includes a large portion of unincorporated Alameda County encompassing Ashland, <br />Cherryland, and San Lorenzo. Most of San Leandro’s commercial and industrial land uses <br />are served by the City of San Leandro system. <br /> <br />3.13.3 City of San Leandro System <br /> <br />The City of San Leandro constructed its initial wastewater treatment plant at the west end <br />of Davis Street in 1939. The plant has been upgraded substantially over the last 60 years <br />in response to changes in demand and more stringent state and federal water quality <br />standards. Today, the plant has a dry weather capacity of about 7.9 million gallons per <br />day and treats about 5.2 million gallons per day. Flows sometimes exceed capacity during <br />major winter storms, in part due to the infiltration of winter storm run-off into the 130 <br />miles of pipes that comprise the collection system. The City is presently undertaking an <br />extensive program to reduce wet weather infiltration problems by replacing deficient <br />links in the collection system. <br />Once at the plant, wastewater is treated and dechlorinated. Most of the effluent is <br />discharged to San Francisco Bay through an outfall pipe shared by other communities in <br />Alameda County. Some of the effluent is directed to a recycled water system owned by <br />EBMUD and is used to irrigate golf courses in Oakland and Alameda. Sludge from the <br />treatment plant is used as an agricultural soil conditioner. The treatment system is <br />enhanced by an aggressive industrial waste pre-treatment program serving industrial <br />customers. <br />87