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City of Sierra Madre 2020 Urban Water Management Plan

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City of Sierra Madre 2020 Urban Water Management Plan JULY 2021 FINAL DRAFT City of Sierra Madre 2020 Urban Water Management Plan JULY 2021 TABLE OF CONTENTS Page CHAPTER 1 ......................................................................................................................... 1-1 URBAN WATER MANAGEMENT PLAN INTRODUCTION AND OVERVIEW ............................... 1-1 RECOMMENDED UWMP ORGANIZATION ....................................................................... 1-4 UWMPS IN RELATION TO OTHER EFFORTS ...................................................................... 1-5 UWMPS AND GRANT OR LOAN ELIGIBILITY ..................................................................... 1-5 DEMONSTRATION OF CONSISTENCY WITH THE DELTA PLAN FOR PARTICIPANTS IN COVERED ACTIONS ...................................................................................................... 1-6 TIPS FOR UWMP PREPARERS ........................................................................................... 1-7 CHAPTER 2 ......................................................................................................................... 2-1 PLAN PREPARATION ........................................................................................................... 2-1 PLAN PREPARATION ......................................................................................................... 2-2 BASIS FOR PREPARING A PLAN ........................................................................................ 2-2 PUBLIC WATER SYSTEMS .................................................................................... 2-3 SUPPLIERS SERVING MULTIPLE SERVICE AREAS / PUBLIC WATER SYSTEMS .............................................................................................................. 2-4 REGIONAL PLANNING ...................................................................................................... 2-5 INDIVIDUAL OR REGIONAL PLANNING AND COMPLIANCE ............................................. 2-5 REGIONAL UWMP ............................................................................................... 2-6 REGIONAL ALLIANCE ........................................................................................... 2-6 FISCAL OR CALENDAR YEAR AND UNITS OF MEASURE .................................................... 2-7 FISCAL OR CALENDAR YEAR ................................................................................ 2-7 REPORTING COMPLETE 2020 DATA .................................................................... 2-8 UNITS OF MEASURE ............................................................................................ 2-8 COORDINATION AND OUTREACH .................................................................................... 2-8 WHOLESALE AND RETAIL COORDINATION ......................................................... 2-8 COORDINATION WITH OTHER AGENCIES AND THE COMMUNITY ..................... 2-9 NOTICE TO CITIES AND COUNTIES .................................................................... 2-10 CHAPTER 3 ......................................................................................................................... 3-1 SYSTEM DESCRIPTION ........................................................................................................ 3-1 GENERAL DESCRIPTION .................................................................................................... 3-2 SERVICE AREA BOUNDARY MAPS .................................................................................... 3-3 SERVICE AREA CLIMATE ................................................................................................... 3-4 SERVICE AREA POPULATION AND DEMOGRAPHICS ........................................................ 3-6 SERVICE AREA POPULATION ............................................................................... 3-6 OTHER SOCIAL, ECONOMIC, AND DEMOGRAPHIC FACTORS ............................. 3-7 LAND USES WITHIN SERVICE AREA .................................................................................. 3-8 i TABLE OF CONTENTS (Continued) Page CHAPTER 4 ......................................................................................................................... 4-1 WATER USE CHARACTERIZATION ........................................................................................ 4-1 NON-POTABLE VERSUS POTABLE WATER USE ................................................................ 4-2 PAST, CURRENT, AND PROJECTED WATER USES BY SECTOR ........................................... 4-2 WATER USE SECTORS LISTED IN WATER CODE ................................................... 4-7 WATER USE SECTORS IN ADDITION TO THOSE LISTED IN WATER CODE ............ 4-8 PAST WATER USE ................................................................................................ 4-9 DISTRIBUTION SYSTEM WATER LOSS .................................................................. 4-9 CURRENT WATER USE ....................................................................................... 4-12 PROJECTED WATER USE .................................................................................... 4-13 CHARACTERISTIC FIVE-YEAR WATER USE ......................................................... 4-15 WORKSHEETS AND REPORTING TABLES ........................................................................ 4-16 OPTIONAL PLANNING TOOL USE ANALYSIS WORKSHEET ................................ 4-16 DWR 2020 UWMP SUBMITTAL TABLES ............................................................ 4-16 WATER USE FOR LOWER INCOME HOUSEHOLDS .......................................................... 4-17 CLIMATE CHANGE CONSIDERATIONS ............................................................................ 4-18 CHAPTER 5 ......................................................................................................................... 5-1 SB X7-7 BASELINES, TARGETS, AND 2020 COMPLIANCE ....................................................... 5-1 GUIDANCE FOR WHOLESALE AGENCIES .......................................................................... 5-2 SB X7-7 FORMS AND SUMMARY TABLES ......................................................................... 5-2 SB X7-7 VERIFICATION FORM (BASELINES AND TARGETS) ................................. 5-3 SB X7-7 COMPLIANCE FORM .............................................................................. 5-4 SUBMITTAL TABLES 5-1 AND 5-2 ........................................................................ 5-4 REGIONAL UWMP/REGIONAL ALLIANCE ............................................................ 5-5 BASELINE AND TARGET CALCULATIONS FOR 2020 UWMPS ........................................... 5-5 SUPPLIER SUBMITTED 2015 UWMP, NO CHANGE TO SERVICE AREA ................ 5-5 METHODS FOR CALCULATING POPULATION AND GROSS WATER USE ........................... 5-7 SERVICE AREA POPULATION ............................................................................... 5-7 GROSS WATER USE ............................................................................................. 5-8 2020 COMPLIANCE DAILY PER CAPITA WATER USE (GPCD) .......................................... 5-10 2020 ADJUSTMENTS FOR FACTORS OUTSIDE OF SUPPLIER’S CONTROL .......... 5-10 SPECIAL SITUATIONS ......................................................................................... 5-11 IF SUPPLIER DOES NOT MEET 2020 TARGET ..................................................... 5-11 REGIONAL ALLIANCE ...................................................................................................... 5-12 CHAPTER 6 ......................................................................................................................... 6-1 WATER SUPPLY CHARACTERIZATION .................................................................................. 6-1 WATER SUPPLY ANALYSIS OVERVIEW ............................................................................. 6-3 SPECIFIC ANALYSIS APPLICABLE TO ALL WATER SUPPLY SOURCES .................... 6-4 OTHER CHARACTERIZATION CONSIDERATIONS ................................................. 6-7 ii TABLE OF CONTENTS (Continued) Page OPTIONAL PLANNING TOOL ............................................................................... 6-7 NARRATIVE SECTIONS FOR SUPPLIER’S UWMP WATER SUPPLY CHARACTERIZATION ........................................................................................................ 6-8 PURCHASED OR IMPORTED WATER ................................................................... 6-8 GROUNDWATER ................................................................................................. 6-8 SURFACE WATER ............................................................................................... 6-37 STORMWATER .................................................................................................. 6-37 WASTEWATER AND RECYCLED WATER............................................................. 6-38 DESALINATED WATER OPPORTUNITIES ............................................................ 6-48 WATER EXCHANGES AND TRANSFERS .............................................................. 6-48 FUTURE WATER PROJECTS ................................................................................ 6-50 SUMMARY OF EXISTING AND PLANNED SOURCES OF WATER ......................... 6-53 SPECIAL CONDITIONS ........................................................................................ 6-56 SUBMITTAL TABLES COMPLETION USING THE OPTIONAL PLANNING
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