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Santa Ana 2020 Urban Water Management Plan <br />arcadis.com <br />6-22 <br />6.3.9 Planned Future Sources <br />The City plans to build two new future wells, build three new wells at existing sites, and rehabilitate <br />two wells to ensure reliable local groundwater and continued drinking water safety. These well projects <br />are further described in Section 6.9. <br />On a regional scale, OCWD regularly evaluates potential projects and conducts studies to improve the <br />existing facilities and build new facilities to include in their Long-Term Facilities Plans (LTFP). <br />OCWD’s 2014 LTFP evaluated 65 potential projects for water supply, basin management, recharge <br />facilities, operational improvements, and operational efficiency. Some of OCWD’s planned water projects <br />that would increase supply are listed below. For a more detailed list of projects, refer to the 2014 LTFP <br />(OCWD). <br />GWRSFE – The Final Expansion of the GWRS is currently underway and is the third and final phase <br />of the project. When the Final Expansion is completed in early 2023, the plant’s treatment capacity <br />will increase from 100 to 130 MGD. To produce 130 MGD, additional treated wastewater from Orange <br />County Sanitation District (OC San)’s Treatment Plant 2 is required. This recycled water represents a <br />high quality, drought-proof source of water to protect and enhance the OC Basin. The Final <br />Expansion project will include expanding the existing GWRS treatment facilities, constructing new <br />conveyance facilities at OC San Plant 2, and rehabilitating an existing pipeline between OC San Plant <br />2 and the GWRS. Once completed, the GWRS plant will recycle 100% of OC San’s reclaimable <br />sources and produce enough water to meet the needs of over one million people. <br />Forecast Informed Reservoir Operations (FIRO) at Prado Dam – Stormwater represents a <br />significant source of water used by OCWD to recharge the OC Basin. Much of this recharge is made <br />possible by the capture of Santa Ana River stormflows behind Prado Dam in the Conservation Pool. <br />FIRO represents the next generation of operating water reservoirs using the best available <br />technology. Advances in weather and stormwater runoff forecasting hold promise to allow USACE to <br />safety impound more stormwater while maintaining equivalent flood risk management capability <br />behind Prado Dam. Preliminary modeling show that by expanding the Conservation Pool from <br />elevation 505 to 512 ft msl, annual recharge to the groundwater basin could increase by as much as <br />4,500 to 7,000 AFY. <br />Surface Water <br />6.4.1 Existing Sources <br />There are, currently, no direct surface water uses in the City’s service area. <br />6.4.2 Planned Future Sources <br />As of 2021, there are no planned direct uses of surface water in the City’s service area.