UWM Plan - Municipal Water District of Orange County

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Section 3 Water Sources and Supply Reliability Figure 3-1: Schematic of Water Supply Sources in Orange County6 MWDOC and its member agencies are collectively working to improve the water reliability within the service area by continuously developing local supplies. MWDOC works together with two primary agencies – Metropolitan and OCWD to insure a safe and high quality water supply. Metropolitan’s 2010 Integrated Water Resources Plan (IRP) update describes the core water resource strategy that will be used to meet fullservice demands (non-interruptible agricultural and replenishment supplies) at the retail level under all foreseeable hydrologic conditions from 2015 through 2035. The water supply mix projected to meet MWDOC’s service area demands through 2035 is depicted in Figure 3-2 below. The imported water supply numbers shown here represent only the amount of supplies projected to meet demands and not the full supply capacity, as only the amount of imported water needed to meet demands will be purchased from Metropolitan. 6 This includes water supply sources for the entire County including the three cities of Anaheim, Fullerton, and Santa Ana Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 3-2
Section 3 Water Sources and Supply Reliability 100% 90% 39,642 51,658 55,699 59,324 59,492 59,597 5,485 6,100 6,100 6,100 6,100 6,100 80% 70% 60% 50% 40% 220,052 243,032 246,514 248,933 250,553 251,754 30% 20% 220,132 225,697 234,454 243,853 247,545 250,519 10% 0% 2010 2015 2020 2025 2030 2035 Metropolitan (Imported Treated/Untreated Water) Groundwater Surface Water Recycled Water Figure 3-2: Current and Projected Water Supplies for MWDOC Service Area (AFY) The following section provides a detailed discussion of the main sources of water within MWDOC’s service area as well as projections of the region’s future water supply portfolio for the next 25 years. This section also compares projected supply and demand under various hydrological conditions to determine MWDOC’s supply reliability for the 25 year planning horizon. This section satisfies the requirements of § 10631 (b) and (c), and 10635 of the Water Code. 3.2. Metropolitan Water District of Southern California Metropolitan is the largest water wholesaler for domestic and municipal uses in California. Approximately 19.1 million Southern Californians rely on Metropolitan for imported water. Metropolitan wholesales imported water supplies to 26 member cities and water districts in six Southern California counties. Since 1983, the total regional retail water demands within Metropolitan’s service area have increased from about 2.9 million acre-feet to nearly 4.2 million acre-feet in 2007. Metropolitan has provided between 45 and 60 percent of the municipal, industrial, and agricultural water used in its nearly 5,200-squre-mile service area. The remaining supply comes from local wells, local surface water, recycled water supplies, and from the City of Los Angeles’s aqueduct in the eastern Sierra Nevada. Metropolitan is governed by a Board of Directors comprised of 37 appointed individuals with a minimum of one representative from each of Metropolitan’s 26 member agencies. The allocation of directors and voting rights are determined by each agency’s assessed Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 3-3
Page 1 and 2: Municipal Water District of Orange
Page 3 and 4: Table of Contents Contents Executiv
Page 5 and 6: Table of Contents 6. Recycled Water
Page 7 and 8: Table of Contents List of Figures F
Page 9 and 10: Acronyms GAC GAP GMFP GPCD gpm GRF
Page 11 and 12: Message from the Board of Directors
Page 13 and 14: Executive Summary • Offer opportu
Page 15 and 16: Executive Summary When comparing su
Page 17 and 18: Executive Summary • Promoting par
Page 19 and 20: 1. Introduction 1.1. Urban Water Ma
Page 21 and 22: Section 1 Introduction • Long-ran
Page 23 and 24: Section 1 Introduction term by vote
Page 25 and 26: Section 1 Introduction For more tha
Page 27 and 28: Section 1 Introduction Orange Count
Page 29 and 30: Section 2 Water Demand 600,000 2.5
Page 31 and 32: Section 2 Water Demand Table 2-1: C
Page 33 and 34: Section 2 Water Demand used to fill
Page 35 and 36: Section 2 Water Demand Baseline and
Page 37 and 38: Section 2 Water Demand o 10 percent
Page 39 and 40: Section 2 Water Demand These target
Page 41 and 42: Section 2 Water Demand under SBx7-7
Page 43 and 44: Section 2 Water Demand Legislation
Page 45: 3. Water Sources and Supply Reliabi
Page 49 and 50: Section 3 Water Sources and Supply
Page 55 and 56: 3.2.3. State Water Project (SWP) Se
Page 57 and 58: State Water Project Programs and Lo
Page 71 and 72: 3.3.2. San Juan Basin Section 3 Wat
Page 79 and 80: 3.3.8. Recharge Facilities for OCWD
Page 89 and 90: 4. Demand Management Measures 4.1.
Page 91 and 92: 4.2. BMP Implementation in MWDOC Se
Page 93 and 94: Section 4 Demand Management Measure
Page 95 and 96: Section 4 Demand Management Measure
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4.2.4. DMM 4: Metering with Commodi
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Section 4 Demand Management Measure
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Section 5 Water Supplies Contingenc
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6. Recycled Water 6.1. Agency Coord
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Section 6 Recycled Water outfalls a
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Section 6 Recycled Water IRWD’s r
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Section 6 Recycled Water IRWD Los A
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Section 6 Recycled Water OCWD Groun
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6.4.2. Indirect Potable Reuse Secti
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7. Future Water Supply Projects and
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Section 7 Future Water Supply Proje
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Section 8 UWMP Adoption Process Thi
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Section 8 UWMP Adoption Process Cit
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Appendices A. Urban Water Managemen
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CALIFORNIA WATER CODE DIVISION 6 PA
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and county, city, regional agency,
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(4) A detailed description and anal
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dated December 10, 2008, as it may
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the agencies participating in the p
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service area at the end of 5, 10, 1
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10631, that achieve water savings s
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"Memorandum of Understanding Regard
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Demand “Bump” Factors for 2010
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Table 1. Per-Capita Retail Water Us
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Appendix C California Urban Water C
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Agency: Municipal Water District of
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Urban Water Management Plan checkli
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Calif. Water No. UWMP requirement a
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Municipal Water District of Orange
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List of Tables and Figures TABLES T
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Section 2: Metropolitan Water Distr
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Section 3: Development Process In p
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MWDOC’s allocation plan. Moreover
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Base Period Interim Agricultural Wa
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Shortage Levels: The model allocate
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to 2008; in order to incorporate th
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Section 5: Plan Implementation This
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agencies and Board Committee member
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Tracking and Reporting In preparing
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It important to note, MWDOC does no
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Appendix A List of Acronyms: AF- Ac
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Appendix C MWDOC Growth Adjustment
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Appendix F Letters of Notification
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Appendix H Resolution of Adoption o
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8001 Irvine Center Drive, Suite 110
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UWM Plan - Municipal Water District of Orange County

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