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Santa Ana 2020 Urban Water Management Plan arcadis.com 7-12 Management Tools and Options Existing and planned water management tools and options for the City, OCWD, and MWDOC’s service area that seek to maximize local resources and result in minimizing the need to import water are described below. Although they are a direct MET Member Agency, the City benefits from collaboration between MWDOC and OCWD to maximize local resources. Reduced Delta Reliance: MET has demonstrated consistency with Reduced Reliance on the Delta Through Improved Regional Water Self-Reliance (Delta Plan policy WR P1) by reporting the expected outcomes for measurable reductions in supplies from the Delta. MET has improved its self-reliance through methods including water use efficiency, water recycling, stormwater capture and reuse, advanced water technologies, conjunctive use projects, local and regional water supply and storage programs, and other programs and projects. In 2020, MET had a 602,000 AF change in supplies contributing to regional-self-reliance, corresponding to a 15.3% change, and this amount is projected to increase through 2045 (MET, 2021). For detailed information on the Delta Plan Policy WR P1, refer to Appendix C. The continued and planned use of groundwater: The water supply resources within the City’s service area are enhanced by the existence of groundwater basins that account for the majority of local supplies available and are used as reservoirs to store water during wet years and draw from storage during dry years, subsequently minimizing the City’s reliance on imported water. Groundwater basins are managed within a safe basin operating range so that groundwater wells are only pumped as needed to meet water use. The City supports and partners in recycled water efforts, including groundwater recharge, through its coordination with OCWD and OC San. The City is currently planning for new well construction and major well rehabilitation at seven well sites, described in Section 6.9. Groundwater storage and transfer programs: MET and OCWD’s involvement in SARCCUP includes participation in a CUP that improves water supply resiliency and increases available dry-year yield from local groundwater basins. The groundwater bank has 137,000 AF of storage (OCWD, 2020b). Additionally, MET has numerous groundwater storage and transfer programs in which MET endeavors to increase the reliability of water supplies, including the AVEK Waster Agency Exchange and Storage Program and the High Desert Water Bank Program. The IRWD Strand Ranch Water Banking Program has approximately 23,000 AF stored for IRWD’s benefit, and by agreement, the water is defined to be an "Extraordinary Supply" by MET and counts essentially 1:1 during a drought/water shortage condition under MET’s Water Supply Allocation Plan. In addition, MET has encouraged storage through its cyclic and conjunctive use programs that allow MET to deliver water into a groundwater basin in advance of agency demands, such as the Cyclic Storage Agreements under the Main San Gabriel Basin Judgement. Water Loss Program: The water loss audit program reduces MET’s dependency on imported water from the Delta by implementing water loss control technologies after assessing audit data and leak detection. Increased use of recycled water: The City partners with OCWD in recycled water efforts to identify opportunities for the use of recycled water for irrigation purposes, groundwater recharge City Council 28 –111 6/1/2021