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<br />7A - ATTACHMENT NO.3 <br />Saltworks Proposal- Water Group Summary Report (22 January 2010) Page 26 <br /> <br />· 2010 UWMP -In accordance with the California Urban Water Management <br />Planning Act, Redwood City will update its UWMP in 2010. UWMPs are <br />required to be prepared every five years. The water demand and supply <br />assumptions of the 2005 UWMP will be revisited and updated; if the <br />Saltworks proposal moves forward, its demand and supplies may need to be <br />addressed in the 2010 UWMP. The General Plan may identify demand that <br />is greater than that identified in the 2005 UWMP and possibly greater than <br />the City's current SFPUC Supply Assurance of 12,243 AFY; this would be <br />addressed in the 2010 UWMP. <br /> <br />3.3.3 Conclusions Regarding Potable Water Supply <br /> <br />Redwood City receives all of its potable water supply from the SFPUC regional water <br />system. The City's contractual supply is 12,243 AFY, and the City has used more than <br />this amount in nine of the last ten years. The 2005 UWMP indicates that potable demand <br />will decrease to 11,724 AFY by 2030. The Saltworks potable water demand, using the <br />City's Attachment Q methodology, is about 1,815 AFY, or 15 percent of the City's <br />SFPUC contractual supply. Thus, existing potable supply is considered by the water <br />team to be to insufficient to meet existing demand plus the estimated Saltworks potable <br />demand, as summarized in Table 3. As noted above, the City is scheduled to update <br />the UWMP in 2010. The anticipated Saltworks potable demand could be considered at <br />that time. <br /> <br />Table 3: Saltworks Additional Potable Supply Need (in AFY) <br />Anticipated potable demand without Saltworksa 11 ,724 <br />Anticipated additional potable demand from Saltworksb 1,815 <br />Total demand with Saltworks 13,539 <br />Total potable supplyC 12,243 <br />Supply deficit 1,296 <br />a Demand in 2030 from 2005 UWMP. This is a minimum value, and could be larger as described in <br />Section 3.3.2 above. <br />b From Table 1 <br />C Water from SFPUC Water Supply Agreement <br /> <br />3.4 Recycled Water Supply <br /> <br />3.4.1 Description of Existing Recycled Water Supply <br />Redwood City approved a City-wide recycled water project in 2003 with the goal of <br />reducing demand on the Hetch Hetchy system. Phase 1 of the project is nearly <br />complete and delivers recycled water to the Redwood Shores and Greater Bayfront <br />Areas of Redwood City; these areas are located on the east (Bay) side of U.S. 101 and <br />include industrial uses along Seaport Boulevard and the Port of Redwood City. <br /> <br />The source of the recycled water for Redwood City is the South Bayside System <br />Authority (SBSA), a sub-regional wastewater treatment plant located at the eastern end <br /> <br />19 <br />