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Water Supply Assessment Griffith Energy Storage Project <br /> 1 DEMAND ANALYSIS AND SUFFICIENCY DETERMINATION <br /> Water demand for construction activity could be met by hauling water from the City of Tracy. <br /> The water demand of this Project(30.7 acre-feet) accounts for only 0.02 percent of the average annual <br /> pumping demand (199,549 AFY)within the Tracy Subbasin and the groundwater budget indicates that <br /> there is a surplus supply of just over 4,800 AFY, so the Tracy Subbasin could easily support this Project. <br /> The City of Tracy has surplus water in normal years in both the near term and the long term and could <br /> provide water for the Project. In single dry years, the City has a deficit and may not be able to support the <br /> Project. However, in a multi-dry-year scenario occurring by the year 2030 or earlier, the City has a surplus <br /> of water adequate to supply the Project. <br /> Based on the forgoing, there is sufficient groundwater available for construction of the Project. The <br /> proposed water demand is small compared to the available water budget and the Tracy Subbasin can <br /> easily support the Project. <br /> OTETRA TECH 8 February 2023 <br />