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Elsinore Valley Water District Reference Materials General Plan Update Appendix M1: 2005 Urban Water Managment Plan Elsinore Valley Municipal Water District

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Elsinore Valley Water District Reference Materials General Plan Update Appendix M1: 2005 Urban Water Managment Plan Elsinore Valley Municipal Water District General Plan Update Appendix M: Elsinore Valley Water District Reference Materials General Plan Update Appendix M1: 2005 Urban Water Managment Plan Elsinore Valley Municipal Water District Final Report Urban Water Management Plan December 2005 ELSINORE VALLEY MUNICIPAL WATER DISTRICT Urban Water Management Plan FINAL REPORT December 2005 Table of Contents SECTION 1 – INTRODUCTION 1.1 Project Authorization........................................................................................................ 1-1 1.2 Report Overview .............................................................................................................. 1-1 1.3 Urban Water Management Planning Act........................................................................... 1-2 1.4 SB 610 ........................................................................................................................... 1-3 1.5 Plan Submittal Requirements............................................................................................. 1-4 1.5 Acknowledgements .......................................................................................................... 1-4 1.6 Project Staff ...................................................................................................................... 1-4 1.7 List of Abbreviations......................................................................................................... 1-4 SECTION 2 – AGENCY COORDINATION 2.1 EVMWD’s 2005 UWMP ................................................................................................. 2-1 2.2 Inter-Agency Coordination............................................................................................... 2-2 2.3 Resource Maximization and Import Minimization Plan .................................................... 2-3 2.3 City and County Notification and Participation................................................................. 2-3 SECTION 3 – CONTENTS OF THE UWMP 3.1 Appropriate level of Planning for EVMWD....................................................................... 3-1 3.2 Service Area Information with 25-Year projections........................................................... 3-1 3.2.1 EVMWD Service Area ....................................................................................... 3-1 3.2.2 History of EVMWD............................................................................................ 3-2 3.2.3 Population........................................................................................................... 3-3 3.2.4 Climate............................................................................................................... 3-4 3.3 Water Sources ................................................................................................................... 3-5 3.3.1 Existing Potable Water Supplies ......................................................................... 3-6 3.3.2 Existing Non-Potable Water Supplies.................................................................3-19 3.3.3 Projected Potable Water Supplies.......................................................................3-22 3.3.4 Projected Non-Potable Water Supplies...............................................................3-26 3.4 Reliability of Supply.........................................................................................................3-28 3.4.1 Imported Water Supply Reliability.....................................................................3-28 3.5 Transfer and Exchange Opportunities...............................................................................3-30 3.6 Water Use by Customer Type...........................................................................................3-30 3.6.2 Existing Water Demands....................................................................................3-31 3.7 Projected Potable Water Demands....................................................................................3-34 3.7.1 Summary of Projected Demands ........................................................................3-39 3.8 Planned Water Supply Projects and Programs...................................................................3-41 3.9 Development of Desalinated Water ..................................................................................3-42 3.10 Current or Projected Supply Including Wholesale Water ................................................3-42 MWH Final TOC-1 Table of Contents (Continued) SECTION 4 – DETERMINATION OF DMM IMPLEMENTATION 4.1 DMM Implementation....................................................................................................... 4-1 4.2 Demand Management Measures........................................................................................ 4-1 4.2.2 Review of Water Demands.................................................................................. 4-2 4.2.3 List of Best Management Practices ..................................................................... 4-2 4.3 Schedule of DMM Implementation...................................................................................4-12 4.4 Conservation Savings .......................................................................................................4-13 4.5 Coverage Compliance ......................................................................................................4-13 4.6 Evaluation of DMMs Not Implemented............................................................................4-21 SECTION 5 – WATER SHORTAGE CONTINGENCY PLAN 5.1 Intent of the Plan .............................................................................................................. 5-1 5.2 Stages of Action ............................................................................................................... 5-1 5.3 Estimate of Minimum Supply for the Next Three Years.................................................... 5-2 5.4 Catastrophic Supply Interruption Program........................................................................ 5-3 5.5 Prohibitions, Penalties, and Consumption Reduction Methods.......................................... 5-4 5.6 Analysis of Revenue Impacts of Reduced Sales During Shortages................................... 5-5 5.7 Draft Ordinance and Use Monitoring Procedure.............................................................. 5-7 SECTION 6 – RECYCLED WATER PLAN 6.1 Coordination ..................................................................................................................... 6-1 6.2 Wastewater Quantity, Quality and Current Users............................................................... 6-1 6.2.1 Existing Recycled Water Supplies....................................................................... 6-1 6.2.2 Future Recycled Water Supplies ......................................................................... 6-3 6.3 Potential and Projected Use, Optimization plan with Incentives......................................... 6-6 6.3.1 Wildomar Region................................................................................................ 6-7 6.3.2 Lake Elsinore Region.......................................................................................... 6-7 6.3.3 Alberhill Region ................................................................................................. 6-8 6.3.4 Ramsgate Region................................................................................................ 6-8 6.3.5 Canyon Hills....................................................................................................... 6-8 6.3.6 Temescal System ................................................................................................ 6-9 6.3.7 Lake Stabilization ............................................................................................... 6-9 6.3.8 Projected Recycled Water Demand ..................................................................... 6-9 SECTION 7 – WATER QUALITY IMPACTS ON RELIABILITY 7.1 Water Quality Impacts on Supply Reliability.................................................................... 7-1 7.1.1 Surface Water.......................................................................................................... 7-1 7.1.2 Groundwater............................................................................................................ 7-1 7.1.3 Imported Water........................................................................................................ 7-2 TOC-2 Final MWH Table of Contents (Continued) SECTION 8 – WATER SERVICE RELIABILITY 8.1 Projected Normal Water Year Supply and Demand .......................................................... 8-2 8.2 Projected Single-Dry-Year Supply and Demand .............................................................. 8-3 8.3 Projected Multiple-Dry-Year Supply and Demand........................................................... 8-4 SECTION 9 – ADOPTION AND IMPLEMENTATION OF THE UWMP 9.1 Plan Development and Public Participation ...................................................................... 9-2 9.2 Resolution for Adopting the Plan..................................................................................... 9-2 9.3 Distribution of the 2005 UWMP...................................................................................... 9-2 SECTION 10 – MISCELLANEOUS PROVISIONS 10.1 Miscellaneous Provisions ..............................................................................................10-1
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