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22 6.1.3 Alternative Water Supply Program In early 2020, the SFPUC began implementation of the Alternative Water Supply Planning Program (AWSP), a program designed to investigate and plan for new water supplies to address future long-term water supply reliability challenges and vulnerabilities of the RWS particularly in light of the possible implementation of the Bay-Delta Plan Amendment. Included in the AWSP is a suite of diverse, non-traditional supply projects that, to a great degree, leverage regional partnerships and are designed to meet the water supply needs of the SFPUC Retail and Wholesale Customers through 2045. As of the May 2024 Alternative Water Supply (AWS) Plan annual progress report the SFPUC has budgeted $187 million over the next ten years to fund water supply projects. Overall, the AWS program includes the following goals:  Identification of the anticipated water supply gap through the 2045 planning horizon  Description of ongoing efforts to reduce demands and optimize RWS supply availability  Description of AWS Projects that can augment RWS supply and address the future water supply gap  Recommendations that will further advance the AWS Program The SFPUC is considering several water supply options and opportunities to meet all foreseeable water supply needs, including surface water storage expansion, recycled water expansion, water transfers, desalination, and potable reuse. These efforts and their expected benefit to supply reliability are listed below, and described in further detail in the SFPUC’s Alternative Water Supply Plan Report: • Daly City Recycled Water Expansion (Regional; Normal and Dry Year Supply, estimated completion in 2030) • Alameda County Water District – Union Sanitary District Purified Water (Regional; Normal and Dry Year Supply, estimated completion in 2039) • PureWater Peninsula (Regional; Normal and Dry Year Supply, estimated completion in 2039) • South Bay Purified Water (Regional; Dry Year Supply, estimated completion in 2038) • Los Vaqueros Reservoir Expansion (Regional; Dry Year Supply; estimated completion 2030) • Calaveras Reservoir Expansion (Regional; Dry Year Supply, estimated completion in 2039) 6.2 Redwood City Water Supply Reliability In the City’s 2020 UWMP, projected normal year supplies are shown to be adequate to satisfy the City’s projected normal year demands. However, in the City’s 2020 UWMP, and this WSA, the City’s purchased supplies from the SFPUC RWS assume dry year supply reductions as a result of the implementation of the Bay-Delta Plan Amendment, which significantly reduces dry year allocations for SFPUC wholesale customers. Recycled water is estimated to be available during all hydrologic years at a volume that meets the City’s projected recycled water demands. ATTY/RESO.0027/CC RESO WATER SUPPLY ASSESSMENT (920 SHASTA) - EXHIBIT A REV: 04-22-25 VR Page 22 of 42