IRWD’s mission is to provide high quality water and sewer services in an efficient, cost effective, and environmentally sensitive manner which produces a high level of customer satisfaction. For additional information on IRWD’s service area and customers see Section 3 of this UWMP for IRWD “System Description.”
1.3 Purpose and Importance: IRWD Water Resources Planning
In 1972, IRWD developed master plans for its domestic (potable) and irrigation (non-potable) water systems. As IRWD’s service area developed, the original master plans were updated over the years. In 1991, IRWD combined the potable and non-potable master plans to make up the Water Resources Master Plan (WRMP) and evaluate IRWD’s water resources in their entirety. The WRMP, IRWD’s principal planning document, is a comprehensive document compiling data and analysis that IRWD considers necessary for its planning needs. The WRMP provides the framework for future IRWD water resource planning and decision-making including supply and demand, operations, and financial perspectives. IRWD expects to complete an update of the WRMP in December 2027. Land use within IRWD’s service area has been changing steadily from agricultural to urban development. Additionally, in 1999, two large Marine Corps stations within IRWD’s service area were closed as part of the Federal Base Realignment and Closure. IRWD was involved in various planning studies for the redevelopment and reuse of these bases in coordination with the local jurisdictional agencies. In accordance with Section 10610.2 (a)(4) of the Act, as part of its long- range planning activities, IRWD coordinates closely with various cities and jurisdictions within its service area on their respective general planning to ensure water demand forecasts are consistent with current and future land-use planning. IRWD’s WRMP is used as the foundational document for compliance with enacted legislation (SB221 and SB610), which requires water retailers to demonstrate the sufficiency of water supplies to serve long term demands for certain proposed subdivisions and large development projects subject to the California Environmental Quality Act (CEQA), in addition to existing and planned water supply uses. IRWD stresses the importance of short-term and long-term planning efforts to ensure reliable, affordable water supplies are made available to our customers. This 2025 UWMP allows IRWD to demonstrate the benefits of the District’s water resources planning efforts. Sections 3, 4, 6, 7 and 8 of this UWMP provide detailed information on IRWD’s service area, water systems, supplies and demands, and water supply reliability in accordance with the Act.
1.4 UWMP Organization and Section Summaries
IRWD’s water resources planning efforts and increased water reliability are demonstrated throughout the UWMP and subsequent analyses. This plan provides information on IRWD’s ability to address drought conditions, its short-term and long-term planning needs, historic and projected water supply and demands, as well as options to increase local water resiliency.
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IRWD – 2025 Urban Water Management Plan
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