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Section 7 2025 Urban Water Management Plan <br />Water Supply Reliability Assessment City of Pleasanton <br /> Public Draft | May 2026 <br /> 7-10 EKI Environment & Water, Inc. <br />Table 7-2 Basis of Water Year Data for Zone 7 Supplies <br />Water Source (a) Normal Year Single <br />Dry Year <br />Multi-Year Drought <br />Year 1 Year 2 Year 3 Year 4 Year 5 <br />SWP – Table A 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />SWP – Carryover 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />Water Transfers 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />Arroyo Valle 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />Sites Reservoir 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />From Storage <br />Main Basin 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />Non-Local Storage <br />Programs (b) <br />1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />Chain of Lakes 1922-2021 <br />Median 1977 1987 1988 1989 1990 1991 <br />NOTES: <br />(a) This table is based on Zone 7’s 2025 UWMP (Section 7.2 and Tables 7-1 to 7-9), where the reliability of each <br />water supply source is discussed. <br />(b) Non-local storage programs include storage in Semitropic and Cawelo, as well as other future programs. <br />