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City of San Leandro <br />Sewer System Management Plan <br />Volume I <br />P a g e | 4 <br />RDI/I Rainfall-dependent infiltration and inflow <br />RWQCB Regional Water Quality Control Board <br />SCADA Supervisory Control and Data Acquisition <br />SHECAP Sewer Hydraulic Evaluation and Capacity Assessment Plan <br />SOP Standard Operating Procedure <br />SSMP Sewer System Management Plan <br />SSO Sanitary Sewer Overflow <br />SWRCB State of California Water Resources Control Board <br />UPC Uniform Plumbing Code <br />TM Technical Memorandum <br />WDR Waste Discharge Requirements <br />WPCP Water Pollution Control Plant <br />Background <br />The State Water Resources Control Board (SWRCB) requires that all public wastewater <br />collection system agencies in California with more than one mile of sewer pipe be regulated <br />under General Waste Discharge Requirements (WDR). The WDR mandates that the City prepare <br />an SSMP following the guidelines set forth in the WDR and report SSOs using an electronic <br />reporting system. In addition the San Francisco Bay Regional Water Quality Control Board <br />(RWQCB) requires that the SSMP incorporate the guidelines in the SSMP Development Guide <br />prepared by the RWQCB in cooperation with the Bay Area Clean Water Agencies (BACWA). <br />In July 2009, the City of San Leandro City Council approved the first version of the City of San <br />Leandro Sewer System Management Plan (SSMP). The SSMP was prepared in compliance with <br />requirements of both the State Water Resources Control Board (SWRCB) Order No. 2006-0003, <br />and the SWRCB Order No. WQO 2013-0058, amending the Monitoring and Reporting Program <br />for Statewide General Waste Discharge Requirements for Sanitary Sewer Systems. <br />City of San Leandro Sewer System Management Plan <br />City Service Area and Sewer System <br />The City of San Leandro (the City) is located in Alameda County and is surrounded by Oakland <br />to the north, San Lorenzo and Hayward to the south, San Francisco Bay to the west, with open <br />space preserves and Castro Valley to the east. As of 2013, the City has a population of <br />approximately 88,000 based on estimates from the U. S. Census Bureau. The City covers <br />approximately 13 square miles with a population density of 6,750 persons per square mile. The <br />City is substantially built out and experienced an overall decrease in industry over the last fifteen <br />years. <br />The City’s sewer system consists of approximately130 miles of pipe, ranging from 6 inches to 42 <br />inches in diameter, and 13 remote lift stations. The sewers in the City system range in age from