2015 URBAN WATER MANAGEMENT PLAN

MAY, 2017

FINAL DRAFTFor Council Adoption

CITY OF CALEXICO

CA

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2015

URBAN WATER MANAGEMENT PLAN

City of Calexico, CA

Public Works Department608 Heber Avenue, Calexico, CA

(760) 768-2160

May, 2017Final Draft

(for Council Adoption)

Prepared by:

WEST & ASSOCIATES78 Anacapa Ct. Foothill Ranch, CA

(949) 716-7670philw@westaeng.com

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2015 URBAN WATER MANAGEMENT PLANTABLE OF CONTENTS

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2015URBAN WATER MANAGEMENT PLAN

TABLE OF CONTENTS

Section 1: Introduction

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1.1 Purpose & Summary ........................................................................................................1-11.2 Coordination ....................................................................................................................1-21.3 DWR Updates to the UWMPs ..........................................................................................1-31.4 Updates to the City’s UWMP ...........................................................................................1-41.5 Format of the 2015 UWMP..............................................................................................1-51.6 City and Water System History ........................................................................................1-61.7 Current Water Service Area.............................................................................................1-91.8 Land Use & Economy .....................................................................................................1-101.9 Climate ...........................................................................................................................1-151.10 Population & Demographics ..........................................................................................1-161.11 Water System.................................................................................................................1-18

Section 2: Water Sources & Supplies

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2.1 Introduction .....................................................................................................................2-12.2 Current Water Supply Sources.........................................................................................2-12.3 Supply Purchases/Volumes............................................................................................2-132.4 Reliability of Supplies.....................................................................................................2-142.5 Alternative Water Sources.............................................................................................2-14

Section 3: Recycled Water Opportunities

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3.1 Overview..........................................................................................................................3-13.2 Wastewater Collection System........................................................................................3-13.3 Treatment and Re-use .....................................................................................................3-33.4 Recycled Water Use.........................................................................................................3-63.5 Encouraging Recycled Water Use ....................................................................................3-8

Section 4: Water Quality

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4.1 Overview..........................................................................................................................4-14.2 Water Quality Standards..................................................................................................4-14.3 Quality of Sources............................................................................................................4-3

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Section 4: Water Quality (cont.)

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4.4 Water Quality Monitoring ...............................................................................................4-54.5 Water Quality Impacts on Management & Supply Reliability .........................................4-6

Section 5: Water Use

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5.1 Overview..........................................................................................................................5-15.2 Current City Water Needs................................................................................................5-15.3 Weather Effects on Water Use ........................................................................................5-35.4 Water Use ........................................................................................................................5-45.5 Water Use by Sector ........................................................................................................5-55.6 Water Conservation Act...................................................................................................5-85.7 Projected Water Use......................................................................................................5-145.8 Low Income Projected Water Demands ........................................................................5-16

Section 6: Reliability Planning

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6.1 Overview..........................................................................................................................6-16.2 Historic Droughts .............................................................................................................6-16.3 Recent Drought (2011-2016) ...........................................................................................6-26.4 State Supply Reliability ....................................................................................................6-36.5 Competition for Water Rights..........................................................................................6-96.6 Implementation of IID’s Rights ......................................................................................6-106.7 City Supply Reliability.....................................................................................................6-116.8 Ensuring Adequate Supply .............................................................................................6-22

Section 7: Conservation Measures

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7.1 Overview..........................................................................................................................7-17.2 CUWCC Membership .......................................................................................................7-27.3 Current Conservation Measures......................................................................................7-37.4 Implementation ...............................................................................................................7-47.5 Evaluating Effectiveness of BMPs/DMMs......................................................................7-12

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Section 8: Contingency Planning

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8.1 Overview..........................................................................................................................8-18.2 Recent Statewide Concerns .............................................................................................8-18.3 Recent Local Concerns .....................................................................................................8-28.4 Emergency Response Efforts ..........................................................................................8-28.5 City Contingency Policies ................................................................................................8-58.6 Methods to Assess Reductions .......................................................................................8-88.7 Fiscal Impacts ..................................................................................................................8-88.8 Three-Year Minimum Supply ...........................................................................................8-9

Appendices

APPENDIXAppendix AAppendix BAppendix CAppendix DAppendix EAppendix FAppendix GAppendix HAppendix IAppendix JAppendix KAppendix LAppendix M

DESCRIPTIONCity Council Resolution Adopting 2015 UWMP

UWMP ActDWR UWMP Checklist

DWR UWMP Data TablesDWR SBx7-7 Data Tables

Land Use Element - 2015 City General PlanSpecific Plans – 2015 County Land Use Element

Calexico Water Code (Conservation)Appendix N – Imperial Integrated Regional Water Management Plan

2015 QSA Implementation Report – Imperial Irrigation District2016 City of Calexico Water Quality Consumer Confidence Report

UWMP Coordination & Outreach EffortsReferences

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2015 URBAN WATER MANAGEMENT PLANACRONYMS

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2015URBAN WATER MANAGEMENT PLAN

ACRONYMS

AAC All-American Canal

AF Acre-Feet

AFY Acre-Feet per Year

AMI Automatic Metering Infrastructure

AP Allocation Plan

BDCP Bay-Delta Conservation Plan

BMP Best Management Practice

CDP Census Designated Place

CDPH California Department of Public Health

CFS Cubic Feet per Second

CII Commercial Industrial Institutional

CIMIS California Irrigation Management Information System

CRA Colorado River Aqueduct

CUWCC California Urban Water Conservation Council

CVP Central Valley Project

CDPH California Department of Public Health

DBPs Disinfection Byproducts

DDW Division of Drinking Water

DMM Demand Management Measure

DOE Department of Energy

DWSAP Drinking Water Source Assessment and Protection

DWR Department of Water Resources

EPA Environmental Protection Agency

ETo Evapotranspiration

GPCD Gallons per Capita per Day

GPM Gallons per Minute

HEN High Efficiency Nozzle

HET High Efficiency Toilet

HEW High Efficiency Washer

IID Imperial Irrigation District

IPR Indirect Potable Reuse

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2015 URBAN WATER MANAGEMENT PLAN

IRP Integrated Resources Plan

MBR Membrane Bioreactor

MCL Maximum Contaminant Level

MCLG Maximum Contaminant Level Goal

MG Million Gallons

MGD Million Gallons per Day

mg/L Milligrams per Liter

μg/L Micrograms per Liter

MOU Memorandum of Understanding

MWA Mohave Water Agency

MWD Metropolitan Water District of Southern California

ng/L Nanograms per Liter

NPDWR National Primary Drinking Water Regulations

NTU Nephelometric Turbidity Units

PCA Possible Contaminating Activities

PHG Public Health Goal

QSA Quantification Settlement Agreement

RHNA Regional Housing Needs Assessment

SDWA Safe Drinking Water Act

SB Senate Bill

SBx7-7 Senate Bill x7-7

SWP State Water Project

SWRCB State Water Resources Control Board

TDS Total Dissolved Solid

TOC Total Organic Carbon

ULFT Ultra-Low-Flow Toilet

USFWS U.S. Fish and Wildlife Service

UWMP Urban Water Management Plan

WSAP Water Supply Allocation Plan

WSDM Water Surplus & Drought Management Plan

WSS Watershed Sanitary Survey

WWTP Wastewater Treatment Plant

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