San Diego County Water Authority Final 2015 Urban Water Management Plan Prepared by: SAN DIEGO COUNTY WATER AUTHORITY Water Resources Department 4677 Overland Avenue San Diego, CA 92123 June 2016 Final 2015 Urban Water Management Plan Prepared by: San Diego County Water Authority Water Resources Department With assistance provided by the following departments: Colorado River Program Finance General Counsel General Manager’s Office MWD Program Operations and Maintenance Public Outreach and Conservation June 2016 San Diego County Water Authority 4677 Overland Avenue San Diego, CA 9123 858‐522‐6600 www.sdcwa.org TABLE OF CONTENTS Section Page Section 1 Introduction ............................................................................................................................................... 1-1 1.1 California Urban Water Management Planning Act ....................................................................... 1-2 1.2 Senate Bill 7 of the Seventh Extraordinary Session of 2009....................................................... 1-3 1.3 Senate Bills 610 and 221 ............................................................................................................................ 1-4 1.4 Water Authority’s 2015 Plan Preparation and Implementation .............................................. 1-4 1.5 History and Description of the Water Authority ............................................................................. 1-5 1.5.1 History ............................................................................................................................................................... 1-5 1.5.2 Service Area ..................................................................................................................................................... 1-6 1.5.3 Member Agencies .......................................................................................................................................... 1-6 1.6 Water Authority Physical Water Delivery System .......................................................................... 1-7 1.6.1 Aqueduct System ........................................................................................................................................... 1-7 1.6.2 Storage Facilities ........................................................................................................................................... 1-9 1.6.3 Water Treatment ........................................................................................................................................... 1-9 1.6.4 Capital Improvement Program................................................................................................................ 1-9 1.6.5 Renewable Energy Resources ................................................................................................................ 1-11 1.7 Service Area Characteristics ................................................................................................................... 1-11 1.7.1 Regional Economy and Demographics .............................................................................................. 1-12 1.7.2 Climate ............................................................................................................................................................. 1-12 1.7.3 Climate Change Research Efforts and Greenhouse Gas Mitigation ........................................ 1-14 1.7.4 Population ...................................................................................................................................................... 1-17 Section 2 Water Demands ........................................................................................................................................ 2-1 2.1 Municipal and Industrial Water Demand ........................................................................................... 2-1 2.1.1 Residential Demand ..................................................................................................................................... 2-1 2.1.2 Commercial and Industrial Demand ..................................................................................................... 2-1 2.2 Agricultural Water Demand ..................................................................................................................... 2-2 2.3 Total Current and Historic Water Use .................................................................................................. 2-2 2.4 Projected Water Demands ........................................................................................................................ 2-4 2.4.1 Projected Normal Water Demands ........................................................................................................ 2-5 2.4.2 Projected Future Conservation Savings .............................................................................................. 2-6 2.4.3 Projected Dry-Year Water Demands ..................................................................................................... 2-8 2.4.4 Projected Climate Change Impact on Water Demands ................................................................. 2-9 2.4.5 Member Agency Demand on the Water Authority ........................................................................ 2-12 Section 3 Demand Management ............................................................................................................................ 3-1 3.1 Introduction..................................................................................................................................................... 3-1 3.2 Water-Use Efficiency Achievements ..................................................................................................... 3-2 3.2.1 Grant Funding ................................................................................................................................................. 3-2 3.2.2 Water Authority Staffing ............................................................................................................................ 3-2 3.2.3 Regional WaterSmart Turf Replacement Program ......................................................................... 3-2 3.2.4 SoCal Water$mart Residential Program ............................................................................................. 3-3 3.2.5 SoCal Water$mart Commercial, Industrial, and Institutional Program ................................ 3-3 3.2.6 Public Agency Landscape Program ....................................................................................................... 3-4 Final 2015 Urban Water Management Plan i June 2016 San Diego County Water Authority Table of Contents Section Page 3.2.7 Fitness Center Program .............................................................................................................................. 3-4 3.2.8 Water Savings Incentive Program ......................................................................................................... 3-4 3.2.9 On-Site Recycled Water Conversions ................................................................................................... 3-4 3.2.10 Audits and Surveys ............................................................................................................................... 3-4 3.2.11 Water and Energy Efficiency Programs ...................................................................................... 3-5 3.2.12 WaterSmart Customer Education and Workforce Training ............................................... 3-6 3.2.13 WaterSmart Tools and Resources ................................................................................................. 3-7 3.3 Public Outreach ............................................................................................................................................ 3-10 3.4 Conclusion ...................................................................................................................................................... 3-13 Section 4 San Diego County Water Authority Supplies ................................................................................. 4-1 4.1 Introduction..................................................................................................................................................... 4-1 4.2 Water Authority – IID Water Conservation and Transfer Agreement ................................... 4-2 4.2.1 Implementation Status ............................................................................................................................... 4-2 4.2.2 Expected Supply ............................................................................................................................................ 4-3 4.2.3 Transportation ............................................................................................................................................... 4-3 4.2.4 Cost/Financing ............................................................................................................................................... 4-3 4.2.5 Written Contracts or Other Proof........................................................................................................... 4-4 4.2.6 Existing and Future Supplies.................................................................................................................... 4-4 4.3 All-American