Urban Water Management Plan 2015 June 21, 2016
City of El Centro2015Urban WaterManagement PlanJune 21, 2016
2015URBAN WATERMANAGEMENT PLANCity of El CentroJune 21, 20163 Hutton Centre Drive, Suite 200Santa Ana, CA 92707
City of El Centro2015 Urban Water Management PlanTable of ContentsTABLE OF CONTENTSChapter123PageINTRODUCTION AND OVERVIEW .1-11.1BACKGROUND AND PURPOSE . 1-11.2UWMP UPDATE AND THE CALIFORNIA WATER CODE. 1-1PLAN PREPARATION .2-12.1BASIS FOR PREPARING A PLAN . 2-12.2INDIVIDUAL OR REGIONAL PLANNING AND COMPLIANCE. 2-12.3FISCAL OR CALENDAR YEAR AND UNITS OF MEASURE . 2-12.4COORDINATION AND OUTREACH . 2-1SYSTEM DESCRIPTION.3-13.1GENERAL DESCRIPTION . 3-13.2 SERVICE AREA BOUNDARY MAPS . 3-6453.3SERVICE AREA CLIMATE . 3-63.4SERVICE AREA POPULATION AND DEMOGRAPHICS . 3-7SYSTEM WATER USE.4-14.1RECYCLED VERSUS POTABLE AND RAW WATER DEMAND . 4-14.2WATER USES BY SECTOR . 4-14.3DISTRIBUTION SYSTEM WATER LOSSES . 4-44.4ESTIMATING FUTURE WATER SAVINGS . 4-44.5WATER USE FOR LOWER INCOME HOUSEHOLDS . 4-84.6CLIMATE CHANGE . 4-9SB X7-7 BASELINES AND TARGETS .5-15.1UPDATING CALCULATIONS FROM 2010 UWMP. 5-25.2BASELINE PERIODS. 5-25.3SERVICE AREA POPULATION . 5-25.4GROSS WATER USE . 5-35.5BASELINE DAILY PER CAPITA WATER USE . 5-35.62015 AND 2020 TARGETS . 5-45.72015 COMPLIANCE DAILY PER CAPITA WATER USE (gpcd) . 5-55.8REGIONAL ALLIANCE . 5-5i
City of El Centro2015 Urban Water Management PlanTable of Contents6SYSTEM SUPPLIES .6-16.1PURCHASED IMPORTED WATER . 6-16.2GROUNDWATER . 6-146.3SURFACE WATER . 6-186.4STORMWATER. 6-186.5WASTEWATER AND RECYCLED WATER. 6-186.6DESALINATED WATER OPPORTUNITIES . 6-216.7EXCHANGES OR TRANSFERS . 6-216.8FUTURE WATER PROJECTS. 6-216.9SUMMARY OF EXISTING AND PLANNED SOURCES OF WATER . 6-246.10 LIMATE CHANGE IMPACTS TO SUPPLY . 6-24789WATER SUPPLY RELIABILITY ASSESSMENT .7-17.2RELIABILITY BY TYPE OF YEAR . 7-47.3SUPPLY AND DEMAND ASSESSMENT . 7-8WATER SHORTAGE CONTINGENCY PLANNING .8-18.1STAGE OF ACTION . 8-18.2PROHIBITIONS ON END USES . 8-38.3PENALTIES, CHARGES, OTHER ENFORCEMENT OF PROHIBITIONS. 8-38.4CONSUMPTION REDUCTION METHODS . 8-38.5DETERMINING WATER SHORTAGE REDUCTIONS . 8-38.6REVENUE AND EXPENDITURE IMPACTS . 8-68.7RESOLUTIONS OR ORDINANCE . 8-78.8CATASTROPHIC SUPPLY INTERRUPTION . 8-88.9MINIMUM SUPPLY NEXT THREE YEARS . 8-9DEMAND MANAGEMENT MEASURES .9-19.1DEMAND MANAGEMENT MEASURES FOR WHOLESALE AGENCIES. 9-19.2DEMAND MANAGEMENT MEASURES FOR RETAIL AGENCIES . 9-19.3IMPLEMENTATION OVER THE PAST FIVE YEARS . 9-59.4PLANNED IMPLEMENTATION TO ACHIEVE WATER USE TARGETS. 9-59.5MEMBERS OF THE CALIFORNIA URBAN WATER CONSERVATIONCOUNCIL . 9-6ii
City of El Centro2015 Urban Water Management Plan10Table of ContentsPLAN ADOPTION, SUBMITTAL, AND IMPLEMENTATION .10-110.1 INCLUSION OF ALL 2015 DATA . 10-110.2 NOTICE OF PUBLIC HEARING. 10-110.3 PUBLIC HEARING AND ADOPTION . 10-110.4 PLAN SUBMITTAL . 10-110.5 PUBLIC AVAILABILITY . 10-210.6 AMENDING AN ADOPTED UWMP . 10-2APPENDICESAppendix AUrban Water Management Planning Act as amended with SBX7-7Appendix BDWR UWMP Checklist Organized by SubjectAppendix CResolution No. 11-89 of City Council of El Centro to adopt 2010 UrbanWater Management PlanAppendix DDraft City of El Centro Resolution to Declare a Water EmergencyAppendix EDraft City of El Centro Moratorium on New Connections during a WaterShortageAppendix FCity of El Centro Ordinance No. 15-07 (Adopted 6-16-15) EstablishingWater Conservation Regulations and Restrictions to become EffectiveImmediately due to Severe DroughtAppendix GDraft City of El Centro No Waste OrdinanceAppendix HAWWA Water Loss WorksheetsAppendix INotice of Public Hearing, Proof of Public and Resolution of AdpotionFIGURESFigure No.Page3-1Imperial IRWP Regional Setting: Imperial Region3-23-2City and Sphere of Influences Boundary Map3-56-1Prescribed Operations of Lake Powell & Lake Mead6-196-2Historic Lake Mead Elevation Levels6-207-2Lake Mead IOPP Schematic7-6iii
City of El Centro2015 Urban Water Management PlanTable of ContentsTABLESTable No.PageTable 2-1: Public Water Systems . 2-1Table 2-2: Plan Identification . 2-1Table 2-3: Agency Identification . 2-2Table 2-4: Water Supplier Information Exchange . 2-2Table 3-1A: Historical City Climate Characteristics . 3-7Table 3-1B: Historical & Current Population . 3-8Table 3-1C: Current and Projected Population . 3-8Table 3-1: Population – Current and Projected .(Not Used)Table 4-1A: Historical and Current Water Service Connections. 4-1Table 4-1B: Historical Water Use and Water Loss . 4-2Table 4-1: Demands for Potable and Raw Water – Actual . 4-3Table 4-2: Demands for Potable and Raw Water – Projected . 4-3Table 4-3: Total Water Demands . 4-3Table 4-4: 12 Month Water Loss Audit Reporting . 4-4Table 4-5A: Historical & Projected City Per-Capita Water Use . 4-6Table 4-5B: Projected City Water Demands . 4-8Table 4-5: Inclusion in Water Use Projections . 4-9Table 5-1A: Baseline Daily Per-Capita Water Use . 5-3Table 5-2B: Minimum Baseline Daily Per-Capita Water Use. 5-3Table 5-1C: 2020 Targets by Method . 5-5Table 5-1: Baselines and Targets Summary . 5-5Table 5-2: 2015 Compliance . 5-5Table 6-0A: Seven-Party Agreement for Apportionments and Priorities . 6-3Table 6-0B: Delivery of Priority 3(a) Consumptive Use Entitlement to IID (CRWDAExhibit A) . 6-6Table 6-0C: Table 6-0D: IID Conserved and Mitigation Water Delivery Schedule 20032077 (KAF, CRWDA Exhibit B). 6-7Table 6.0D: Conserved and Mitigation Water Delivery Schedule 2003-2077 (KAF,CRWDA Exhibit B) . 6-9Table 6-0E: Compromised IID QSA Delivery Schedule, 2003-2017 (KAF) . 6-10Table 6-0F: Unregulated Inflow to Lake Powell, 2000-2010 (Percent of HistoricAverage) . 6-10Table 6-1: Groundwater Volume Pumped .(Not Used)Table 6-2: Wastewater Collected within Service Area in 2015 . 6-18Table 6-3: Wastewater Treatment and Discharge within Service Area in 2015 . 6-21iv
City of El Centro2015 Urban Water Management PlanTable of ContentsTable 6-4:Current and Projected Recycled Water Direct Beneficial Uses withinService Area .(Not Used)Table 6-5: 2010 UWMP Recycled Water Use Projection Compared To 2015 Actual . (Not Used)Table 6-6: Methods to Expand Future Recycled Water Use .(Not Used)Table 6-7: Expected Future Water Supply Projects or Programs .(Not Used)Table 6-8: Water Supplies – Actual . 6-25Table 6-9: Water Supplies – Projected . 6-25Table 7-1A: IID Inadvertent Overrun Payback to the Colorado River under the IOPP,2012-2014 . 7-6Table 7-1: Bases of Water Year Data . 7-8Table 7-2: Normal Year Supply and Demand Comparison . 7-9Table 7-3: Single Dry Year Supply and Demand Comparison . 7-9Table 7-4: Multiple Dry Years Supply and Demand Comparison. 7-9Table 8-1: Stages of WSCP . 8-2Table 8-1A: Per-Capita Health and Safety Water Quantity Calculations. 8-3Table 8-2: Restrictions and Prohibitions on end uses . 8-4Table 8-2A: WSCP Penalties and Charges . 8-4Table 8-3 Stages Of WSCP – Consumption Reduction Methods . 8-5Table 8-4: Minimum Supply Next Three Years . 8-10Table 10-1: Notification to Cities and Counties . 10-2v
City of El Centro2015 Urban Water Management PlanAcronyms and AbbreviationsACRONYMS and GPDGPFGPMGWMPAll-American CanalAssembly BillAcre FeetAcre Feet per YearAverage Median IncomeAutomatic Meter Reading/Advanced Metering InfrastructureAnnual Operating PlanAmerican Water Works AssociationBest Management PracticesCentral Arizona ProjectHundred Cubic FeetCalifornia Department of Public HealthCalifornia Department of Corrections and Rehabilitation FacilitiesCalifornia Energy CommissionCalifornia Environmental Quality ActCode of Federal RegulationsCubic Feet per SecondCommercial, Industrial and InstitutionalCalifornia Irrigation Management Information SystemColorado River AqueductColorado River Water Delivery AgreementCalifornia Urban Water Conservation CouncilCoachella Valley Water DistrictCalifornia Water CodeDemand Management MeasureDepartment of EnergyDepartment of FinanceDepartment of Public HealthDwelling UnitDepartment of Water ResourcesEquitable Distribution PlanEnvironmental Impact ReportEmergency Operations CenterEnvironmental Protection AgencyEvapotranspirationEvapotranspiration from a Standardized Grass SurfaceEvapotranspiration from a Standardized Alfalfa SurfaceFiscal YearGranular Activated CarbonGlobal Climate ModelGrowing Degree DayGallons Per Capita Per DayGallons Per DayGallons Per FlushGallons Per MinuteGroundwater Management Planvi
City of El Centro2015 Urban Water Management SAPSBSCADASCAGSOISCSSDISDWAAcronyms and AbbreviationsHundred Cubic FeetIntentionally Created SurplusIndependent Technical PanelImperial Irrigation DistrictInchesInadvertent Overrun Payback PolicyIntegrated Resources PlanIntegrated Regional Water Management PlanImproved Water and Wastewater Services ProgramThousand Acre Feet per YearLocal Agency Formation CommissionLower Colorado RiverMunicipal and IndustrialMillion Acre FeetMillion Acre Feet per YearMunicipal, Commercial, and IndustrialMaximum Contaminant LevelMetropolitan Water District of Southern CaliforniaMillion GallonMillion Gallons per DayMilligrams Per LiterMinutesMemorandum of UnderstandingMean Sea LevelMetropolitan Water District of Southern CaliforniaNorth Basin Groundwater Protection ProjectNanofiltrationNational Oceanic and Atmospheric AdministrationNational Pollutant Discharge Elimination SystemPerchloroethylenePicocuries Per LiterPresent Perfected RightsQuantification Settlement AgreementReplenishment AssessmentRegional Emergency Operations CenterRegional Housing Needs AllocationReverse OsmosisRegional Transportation PlanRegional Urban Water Management PlanRegional Water Quality Control BoardService Area PlanSenate BillSupervisory Control and Data AcquisitionSouthern California Association of GovernmentsSphere of InfluenceSustainable Communities StrategySupply and Demand ImbalanceSafe Drinking Water Actvii
City of El Centro2015 Urban Water Management PlanAcronyms and VUWMPVOCWARNWRCCWSCPSan Diego County Water AuthorityState Water ProjectState Water Resources Control BoardThousand Acre FeetTotal Dissolved SolidsMicrograms Per LiterU.S. Bureau of ReclamationUnited States Environmental Protection AgencyUnited States Geological SurveyUltravioletUrban Water Management PlanVolatile Organic CompoundsWater Agencies Response NetworkWestern Regional Climate CenterWater Shortage Contingency Planviii
City of El Centro2015 Urban Water Management PlanChapter 11 INTRODUCTION AND OVERVIEW1.1BACKGROUND AND PURPOSEThe City of El Centro has prepared the 2015 update of its Urban Water Management Planto fulfill the requirements outlined in the California Urban Water Management PlanningAct and the Water Conservation Bill of 2009. This plan includes all informationnecessary to meet the requirements of California Water Code, Division 6, Part 2.6 (UrbanWater Management Planning).1.2UWMP UPDATE AND THE CALIFORNIA WATER CODEThis report has been prepared in compliance with Water Code Sections 10610 through10656 of the Urban Water Management Planning Act (Act), which were added by Statute1983, Chapter 1009, and became effective on January 1, 1984. This Act requires that“every urban water supplier shall prepare and adopt an urban water management plan”(Water Code § 10620(a)). An “urban water supplier” is defined as a supplier providingwater for municipal purposes to more than 3,000 customers or supplying more than 3,000acre-feet of water annually (Water Code § 10617).These plans must be filed with the California Department of Water Resources (DWR)every five years. However, the 2015 plans must be submitted to DWR by July 1, 2016.The Act’s requirements include: Detailed evaluation of the supplies necessary to meet demands over at least a 20year period, in five-year increments, for a single dry water year, in multi-yeardroughts, and during average year conditions, Documentation of the stages of actions an urban water supplier would undertaketo address up to a 50 percent reduction in its water supplies, Description of the actions to be undertaken in the event of a catastrophicinterruption in water supplies, and Evaluation of reasonable and practical efficient water uses, recycling, andconservation activities.1.2.1 Changes in the Act Since 2010Since 2010, several amendments have been made to the Act. The following is a summaryof the significant changes in the Act that have occurred from 2010 to the present: Changes the deadline for water suppliers to submit their 2015 UWMPs to DWRby July 1, 2016 (Water Code § 10621(d)). Adds “distribution system water loss” to the list of past, present, and projectedfuture water uses that the UWMP is to quantify to the extent that records areavailable and over the same 5-year increments described in Water Code §10631(a). (Water Code § 10631(e)(1)(J)). For the 2015 UWMP, the distributionsystem water loss must be quantified for the most recent 12-month period1-1
City of El Centro2015 Urban Water Management PlanChapter 1available. For all subsequent updates, the distribution system water loss must bequantified for each of the 5 years preceding the plan update. (Water Code §10631(e)(3)(A)). The distribution system water loss quantification must bereported in accordance with a worksheet approved or developed
3-1 Imperial IRWP Regional Setting: Imperial Region 3-2 3-2 City and Sphere of Influences Boundary Map 3-5 6-1 Prescribed Operations of Lake Powell & Lake Mead 6-19 6-2 Historic Lake Mead Elevation Levels 6-20 7-2 Lake Mead IOPP Schematic 7-6
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2. An overview of urban water supply in india 3. Governance and regulation 4. Key public sector programmes 5. Public private partnership (PPP) projects in urban water supply 6. Service delivery levels and benchmarks 7. Water quality 8. Water resourcing issues 9. Key challenges for urban poor 10. Reforms in urban water supply References
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of urban water supply catchments to ensure urban water security have become the essential requirements for the rapid sustainable development of urban China. The Nature Conservancy is focused on addressing the challenges of China's urban water catchments, including management of non-point pollution through nature-based solutions.
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The Historic Urban Landscape approach to urban management: a systematic review In 2011, UNESCO adopted the Historic Urban Landscape (HUL) recommendation and called for the application of a landscape approach to ensure the integration of cultural heritage policies and management concerns in the wider goals of sustainable urban
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