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2025 URBAN WATER MANAGEMENT PLAN <br /> MAY 2026/FINAL DRAFT/CAROLLO <br /> CHAPTER 1 INTRODUCTION AND UWMP OVERVIEW <br /> The City of Santa Ana (City) prepared this 2025 Urban Water Management Plan (UWMP) to submit to the <br /> California Department of Water Resources (DWR) to satisfy the UWMP Act of 1983 (UWMP Act or Act) <br /> and subsequent California Water Code (Water Code) requirements. <br /> The City is a retail water supplier that provides water to its residents and other customers using the <br /> imported potable water supply obtained from its regional wholesaler, Metropolitan Water District of <br /> Southern California (MET), local groundwater from the Orange County Groundwater Basin (OC Basin), <br /> which is managed by the Orange County Water District (OCWD), and recycled water from OCWD. As one <br /> of MET's 26 member agencies, the City has prepared this 2025 UWMP in collaboration with MET in <br /> addition to OCWD, Municipal Water District of Orange County(MWDOC), and other key agencies. <br /> UWMPs are comprehensive documents that present an evaluation of a water supplier's reliability over a <br /> long-term (20- to 25-year) horizon. In response to the changing climatic conditions and regulatory <br /> updates since the 2020 UWMP, the City has been proactively managing its water supplies and demands. <br /> The water loss audit program, water conservation measures, public outreach and education on water use <br /> efficiency and efforts for increased self-reliance to reduce dependency on imported water from the <br /> Sacramento-San Joaquin Delta (the Delta) are some of the water management actions that the City has <br /> taken to maintain the reliability of water supply for its service area. In addition, the City has been proactive <br /> in managing local water supplies through the drilling of a new well, rehabilitation of existing wells, and <br /> addition of treatment systems since 2020. Lastly, the City has been maintaining the City's water system <br /> through the rehabilitation of pump stations, reservoirs, and other miscellaneous projects. <br /> This UWMP provides an assessment of the present and future water supply sources and demands within <br /> the City's service area. It presents an update to the 2020 UWMP on the City's water resource needs,water <br /> use efficiency programs, water reliability assessment, and strategies to mitigate water shortage conditions. <br /> It also includes the City's updated 2025 Water Shortage Contingency Plan (WSCP) designed to prepare for <br /> and respond to water shortages. This 2025 UWMP contains all elements required by of the Act. <br /> 1.1 Overview of UWMP Requirements <br /> The UWMP Act enacted by California legislature requires every urban water supplier(Supplier) providing <br /> water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre-feet (AF) <br /> of water annually to prepare, adopt, and file an UWMP with the California DWR every five years. <br /> For this 2025 UWMP cycle, DWR continues to place emphasis on achieving improvements for long term <br /> reliability and resilience to drought and climate change in California. Despite there being no new statutory <br /> requirements, Suppliers must now report progress on meeting their 2028 Water Loss Standards and <br /> continue to state their compliance with Senate Bill (SB) X7-7 2020 Targets. Additional guidance on stored <br /> water accounting and recommendations on identifying the need for future or proposed water supply <br /> projects are provided by DWR as well. <br /> CITY OF SANTA ANA <br />