UWM Plan - Municipal Water District of Orange County

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3.2.6. MWDOC’s Imported Water Supply Projections Section 3 Water Sources and Supply Reliability California Water Code section 10631 (k) requires Metropolitan to provide information to MWDOC for inclusion in its UWMP that identifies and quantifies the existing and planned sources of water available from the wholesale agency. Table 3-5 indicates Metropolitan’s water availability projections by source for the next 25 years as provided to MWDOC. These supply projections include only the supply Metropolitan projects will be needed to serve MWDOC. Metropolitan’s projected supplies to serve MWDOC are lower than MWDOC’s projected demands on Metropolitan due to Metropolitan’s assumption of a 20 percent reduction in demands by 2020. Based on Metropolitan’s supply projections, MWDOC will be able to meet demands under average year, single dry year, and multiple dry year scenarios. The water supply projections shown in Table 3-7 represent the amount of supplies projected to meet MWDOC demands, as MWDOC will only purchase the amount of water needed to meet demands from Metropolitan. Table 3-7: Wholesaler Identified & Quantified Existing and Planned Sources of Water (AFY) Wholesaler Sources Fiscal Year Ending 2015 2020 2025 2030 2035 Imported Water from Metropolitan 225,697 234,454 243,853 247,545 250,519 3.3. Groundwater Among all local supplies available to MWDOC’s member agencies, groundwater supplies the most water. The water supply resources in MWDOC’s service area are enhanced by the existence of four groundwater basins, which provide a reliable local source and, additionally, are used as reservoirs to store water during wet years and storage to draw on during dry years. This section describes the four groundwater basins utilized by MWDOC’s member agencies and provides information on historical groundwater production as well as a 25-year projection of the service area’s groundwater supply. 3.3.1. Lower Santa Ana River Groundwater Basin The Lower Santa Ana Groundwater Basin, also known as the Orange County Groundwater Basin (Basin) underlies the north half of Orange County beneath broad lowlands. The Basin covers an area of approximately 350 square miles, bordered by the Coyote and Chino Hills to the north, the Santa Ana Mountains to the northeast, the Pacific Ocean to the southwest, and terminates at the Orange County line to the northwest, where its aquifer systems continue into the Central Basin of Los Angeles County. The aquifers comprising this Basin extend over 2,000 feet deep and form a Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 3-22
Section 3 Water Sources and Supply Reliability complex series of interconnected sand and gravel deposits. Figure 3-5 depicts the Lower Santa Ana Groundwater Basin. Figure 3-5: Lower Santa Ana Groundwater Basin The OCWD was formed in 1933 by a special legislative act of the State of California Legislature to protect and manage the County's vast, natural, underground water supply with the best available technology and to defend its water rights to the Orange County Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 3-23
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Municipal Water District of Orange
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Table of Contents Contents Executiv
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Table of Contents 6. Recycled Water
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Table of Contents List of Figures F
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Acronyms GAC GAP GMFP GPCD gpm GRF
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Message from the Board of Directors
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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 and 46: 3. Water Sources and Supply Reliabi
Page 47 and 48: 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 65: Section 3 Water Sources and Supply
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 97 and 98: 4.2.4. DMM 4: Metering with Commodi
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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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