UWM Plan - Municipal Water District of Orange County

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Section 1 Introduction supplier to develop urban water use targets to help meet the 20% goal by 2020 and an interim 10% goal by 2015. Each urban retail water supplier must include in its 2010 UWMPs the following information from its target-setting process: • Baseline daily per capita water use • 2020 Urban water use target • 2015 Interim water use target • Compliance method being used along with calculation method and support data • An implementation plan to meet the targets Wholesale water suppliers such as MWDOC are required to include an assessment of present and proposed future measures, programs, and policies that would help achieve the 20% water use reduction by 2020 goal. In effort to assist retail agencies in Orange County to meet the requirement of SB7x7, the MWDOC 2010 Plan will describe the Orange County Regional Alliance and methodology used to calculate the regional targets for 2015 and 2020. The other recent amendment made to the Act is set forth in SB 1087, Water and Sewer Service Priority for Housing Affordable to Low-Income Households. SB 1087 requires water and sewer providers to grant priority for service allocations to proposed developments that include low income housing. SB 1087 also requires UWMPs to include projected water use for single- and multi-family housing needed for low-income households. This 2010 Plan update also incorporates MWDOC’s current and planned water use efficiency efforts pursuant to the Memorandum of Understanding Regarding Urban Water Conservation in California (MOU). 1 MWDOC became a signatory and adopted the MOU in 1991. An UWMP may serve as a foundational document and source of information for a Water Supply Assessment, (Water Code Section 10613), and a Written Verification of Water Supply, (Water Code Section 66473.7). Both statutes require detailed information regarding water supply availability to be provided to city and county decision makers prior to approval of specified large development projects. Additionally, an UWMP also serves as a: • Long-range planning document for water supply; 1 The Memorandum of Understanding Regarding Urban Water Conservation in California (MOU) was adopted in September 1991 by a large number of water suppliers, public advocacy organizations and other interested groups. It created the California Urban Water Conservation Council and established 16 Best Management Practices (BMPs) for urban water conservation, recently refined to 14 BMPs. Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 1-2
Section 1 Introduction • Long-range planning documents for water use efficiency; • Source data for development of a regional water plan; • Source document for cities and counties, as they prepare their General Plans; • Key component of an Integrated Regional Water Management Plan; and • Condition to qualify for receipt of certain State grant funds. For MWDOC, the activities associated with the update of its Plan and the benefits the Plan ultimately affords its local retailers extend far beyond the implied or stated supplyreliability goals. The regional approach allows MWDOC to do the following: • Provide a comprehensive assessment of water resource needs in its service area; • Provide guidance to coordinate implementation of water conservation programs in a cost-effective manner; • Provide assistance to maximize the beneficial use of recycled water and local groundwater supplies, providing the region with new sources of local water to reduce the need for imported supplies from the Metropolitan Water District of Southern California (described in the next section); and • Offer opportunities for public participation through publicly noticed meetings, and provide information that will allow the public to gain further understanding of the region’s comprehensive water planning. The sections in this Plan correspond to the outline of the Act, specifically Article 2, Contents of Plans, Sections 10631, 10632, and 10633. The sequence used for the required information, however, differs slightly in order to present information in a manner reflecting the unique characteristics of MWDOC’s water utility. The UWMP Checklist has been completed, which identifies the location of Act requirements in this Plan and is included as Appendix D. 1.2. Municipal Water District of Orange County Formation and Purpose Orange County was settled around areas of surface water. San Juan Creek supplied the mission at San Juan Capistrano. Santa Ana River supplied the early cities of Anaheim and Santa Ana. The Santa Ana River also provided water to a large aquifer underlying the northern half of the county, enabling settlers to move away from the river's edge and still obtain water by drilling wells. By the early 1900s, Orange County residents understood that their water supply was limited, the rivers and creeks did not flow all year long, and the aquifer would eventually be degraded or even dry up if the water was not replenished on a regular basis. Municipal Water District of Orange County 2010 Regional Urban Water Management Plan Final 1-3
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
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Page 25 and 26: Section 1 Introduction For more tha
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3.3.2. San Juan Basin Section 3 Wat
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Section 3 Water Sources and Supply
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3.3.8. Recharge Facilities for OCWD
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4. Demand Management Measures 4.1.
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4.2. BMP Implementation in MWDOC Se
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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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