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2015 Urban Water Management Plan

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2015 Urban Water Management Plan 2015 URBAN WATER MANAGEMENT PLAN FINAL DRAFT APRIL 2016 2015 URBAN WATER MANAGEMENT PLAN 2015 URBAN WATER MANAGEMENT PLAN City of Brea FINAL DRAFT Prepared for: Ron Krause Project Manager City of Brea [Signature 1 Name] 1 Civic Center Circle [Title] Brea, CA 92821 Prepared by: Arcadis U.S., Inc. 445 South Figueroa Street Suite 3650 Los Angeles California 90071 Tel 213 486 9884 Fax 213 486 9894 Our Ref.: 4109039.0000 Date: April 2016 arcadis.com 2015 URBAN WATER MANAGEMENT PLAN CONTENTS Acronyms and Abbreviations ....................................................................................................................... vii 1 Introduction .......................................................................................................................................... 1-1 1.1 Urban Water Management Plan Requirements ........................................................................... 1-1 1.2 Agency Overview ......................................................................................................................... 1-3 1.3 Service Area and Facilities .......................................................................................................... 1-5 1.3.1 The City of Brea Service Area .......................................................................................... 1-5 1.3.2 City of Brea Water Facilities ............................................................................................. 1-5 2 Demands .............................................................................................................................................. 2-1 2.1 Overview ...................................................................................................................................... 2-1 2.2 Factors Affecting Demand ........................................................................................................... 2-1 2.2.1 Climate Characteristics .................................................................................................... 2-1 2.2.2 Demographics .................................................................................................................. 2-2 2.2.3 Land Use .......................................................................................................................... 2-2 2.3 Water Use by Customer Type ..................................................................................................... 2-2 2.3.1 Overview ........................................................................................................................... 2-3 2.3.2 Non-Residential ................................................................................................................ 2-4 2.3.3 Sales to Other Agencies ................................................................................................... 2-4 2.3.4 Non-Revenue Water ......................................................................................................... 2-4 2.3.4.1 AWWA Water Audit Methodology ........................................................................... 2-4 2.4 Demand Projections..................................................................................................................... 2-7 2.4.1 Demand Projection Methodology ..................................................................................... 2-7 2.4.2 Agency Refinement .......................................................................................................... 2-7 2.4.3 25 Year Projections .......................................................................................................... 2-7 2.4.4 Total Water Demand Projections ..................................................................................... 2-9 2.4.5 Water Use for Lower Income Households ....................................................................... 2-9 2.5 SBx7-7 Requirements ................................................................................................................2-10 2.5.1 Baseline Water Use ........................................................................................................2-11 2.5.1.1 Ten to 15-Year Baseline Period (Baseline GPCD) ...............................................2-11 2.5.1.2 Five-Year Baseline Period (Target Confirmation) ................................................2-11 arcadis.com i 2015 URBAN WATER MANAGEMENT PLAN 2.5.1.3 Service Area Population .......................................................................................2-12 2.5.2 SBx7-7 Water Use Targets ............................................................................................2-12 2.5.2.1 SBx7-7 Target Methods ........................................................................................2-12 2.5.2.2 2015 and 2020 Targets ........................................................................................2-13 2.5.3 Regional Alliance ............................................................................................................2-14 3 Water Sources and Supply Reliability .................................................................................................. 3-1 3.1 Overview ...................................................................................................................................... 3-1 3.2 Imported Water ............................................................................................................................ 3-2 3.2.1 Imported Groundwater Supply (CDWC) ........................................................................... 3-2 3.2.2 Main San Gabriel Basin .................................................................................................... 3-2 3.2.3 Main San Gabriel Basin Judgment ................................................................................... 3-3 3.2.4 Colorado River Supplies ................................................................................................... 3-4 3.2.5 State Water Project Supplies ........................................................................................... 3-7 3.2.6 Storage ...........................................................................................................................3-10 3.3 Groundwater ..............................................................................................................................3-10 3.3.1 La Habra Groundwater Basin .........................................................................................3-10 3.3.2 Groundwater Historical Extraction ..................................................................................3-12 3.4 Summary of Existing and Planned Sources of Water ................................................................3-12 3.5 Recycled Water ..........................................................................................................................3-14 3.6 Supply Reliability........................................................................................................................3-14 3.6.1 Overview .........................................................................................................................3-14 3.6.2 Factors Impacting Reliability ..........................................................................................3-14 3.6.2.1 Environment ..........................................................................................................3-14 3.6.2.2 Legal .....................................................................................................................3-14 3.6.2.3 Water Quality ........................................................................................................3-15 3.6.2.3.1 Metropolitan ................................................................................................3-15 3.6.2.3.2 Main San Gabriel Groundwater Basin ........................................................3-15 3.6.2.3.3 La Habra Groundwater Basin .....................................................................3-18 3.6.2.4 Climate Change ....................................................................................................3-18 3.6.3 Normal-Year Reliability Comparison ..............................................................................3-18 3.6.4 Single-Dry Year Reliability Comparison .........................................................................3-19 arcadis.com ii 2015 URBAN WATER MANAGEMENT PLAN 3.6.5 Multiple-Dry Year Period Reliability Comparison ...........................................................3-19 3.7 Supply and Demand Assessment ..............................................................................................3-20 4 Demand Management Measures......................................................................................................... 4-1 4.1 Water Waste Prevention Ordinances .......................................................................................... 4-1 4.2 Metering ....................................................................................................................................... 4-3 4.3 Conservation Pricing .................................................................................................................... 4-3 4.4 Public Education and Outreach ................................................................................................... 4-3 4.5 Programs to Assess and Manage Distribution System
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