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City of Pleasanton Final Water Supply Assessment Stoneridge Drive Specific Plan Amendment and Staples Ranch Project A proposed residential development of more than 500 dwelling units; 8) A proposed shopping center or business establishment employing more than 1,000 persons or having more than 500,000 square feet (ft of floor space; 9) A commercial building employing more than 1,000 persons or having more than 250,000 ft of floor space; 10) A hotel or motel with more than 500 rooms; 11) A proposed industrial, manufacturing, or processing plant, or industrial park, planned to house more than 1,000 persons, occupying more than 40 acres of land, or having more than 650,000 ft of floor area; 12) A mixed -use project that includes one or more of these elements; or 13) A project creating the equivalent demand of 500 residential units. Altemately, if a public water system has less than 5,000 service connections, the definition of a "Project" also includes any proposed residential, business, commercial, hotel or motel, or industrial development that would account for an increase of ten percent or more in the number of service connections for the public water system. Because the proposed project is a mixed -use development that includes residential dwelling units and commercial uses, it meets the requirements as a "Project" under the Water Code. 4.1.3 "Is There a Public Water System The third step in the SB 610 process is determining if there is a "public water system" to serve the project. Section 10912 (c) of the Califomia Water Code (Water Code) states: "[A] public water system means a system for the provision of piped water to the public for human consumption that has 3,000 or more service connections." The City of Pleasanton is identified as the public water supplier for the project site. The City serves approximately 22,000 water service connections through a local network of treated water tumouts (wholesale metering locations off of the Zone 7 water system), groundwater wells, storage, booster pumping stations and conveyance systems and distribution infrastructure. 4.1.4 "Is There a Current UWMP That Accounts for the Project Demand Step four in the SB 610 process involves determining if there is a current UWMP that considers the projected water demand for the project area. The Water Code requires that all public water systems providing water for municipal purposes to more than 3,000 customers, or supplying more than 3,000 acre -feet annually, must prepare an UWMP, and this plan must be updated at least every five years on or before December 31, in years ending in five and zero. Water Code Section 10910(c)(2) states, if the projected water demand associated with the Project was accounted for in the most recently adopted urban water management plan, the public water system may incorporate the requested information from the urban water management plan in preparing the elements of the assessment required to comply with subdivisions (d),(e),(f), and (g) [i.e., the WSA]." The City's most recent UWMP was adopted in August, 2002. Water demand and growth since 2002 is consistent with the adopted 2002 UWMP, and the City continues to implement the recommended water conservation programs outlined in that UWMP. Presently, the City is working on an updated UWMP for adoption and release in 2008. 5 Personal Communication October 24, 2007. City of Pleasanton Department of Utilities. PAPraisde YR On1041102.01 aepoo n.pera rwawaoo 4-3 3.0 Water Supply Planning