natural disasters, infrastructure failures, operational interruptions, declining groundwater supplies, regulatory actions, or other factors affecting water availability.
The completed WSCP ensures that the City of Port Hueneme remains in compliance with the requirements of the California Urban Water Management Planning Act and is prepared to manage water supplies during shortages while maintaining reliable service to customers. The plan supports the City's ability to meet projected water demands, including anticipated growth and multiple-year drought scenarios. Upon adoption, the WSCP will be submitted to the California Department of Water Resources for final review and acceptance.
FISCAL IMPACT:
None. This item does not require an expenditure of funds.
STRATEGIC PLAN:
Optimal Levels of Service for Residents and Businesses
• Promote operational excellence in all City functions and embody best practices as a municipality
• Establish desired service levels for all City functions ATTACHMENTS:
A. Resolution
B. 2025 Water Shortage Contingency Plan
Agenda Item No. 10 Page 2 of 142 CC Agenda 06-15-2026
Attachment A
RESOLUTION NO.
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF PORT HUENEME, CALIFORNIA, ADOPTING THE 2025 WATER SHORTAGE CONTINGENCY PLAN
WHEREAS, the Urban Water Management Planning Act, Water Code section 10610 et seq. (the Act) requires urban water suppliers providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually to prepare and adopt, in accordance with prescribed requirements, a Water Shortage Contingency Plan; and WHEREAS, the Urban Water Management Planning Act specifies the requirements and procedures for adopting such Water Shortage Contingency Plans; and WHEREAS, the City has provided notice to the public of its intent to adopt a Water Shortage Contingency Plan, has made the draft plan available for public review, and has encouraged the public to provide comment; and
WHEREAS, the City properly noticed and held a public hearing on June 15, 2026, prior to adoption of its Water Shortage Contingency Plan for the purpose of allowing the community to provide comment; and
WHEREAS, the City Council of the City Port Hueneme has duly reviewed, discussed, and considered such Water Shortage Contingency Plan and has determined the plan to be an accurate representation of the actions the City will take during water shortage conditions.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF PORT HUENEME, CALIFORNIA, DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1: The 2025 Water Shortage Contingency Plan is hereby adopted and ordered filed with the Secretary of the Council.
SECTION 2: The City Manager is hereby authorized and directed to file the Water Shortage Contingency Plan with the California Department of Water Resources within 30 days after this date.
SECTION 3: The City Manager is hereby authorized and directed to implement the Water Shortage Contingency Plan during water shortages when declared by the City Council.
SECTION 4: This Resolution shall take effect immediately upon its passage.
SECTION 5: The City Clerk shall certify to the adoption of this Resolution and enter it into the book of original Resolutions.
PASSED, APPROVED, AND ADOPTED, this 15th day of June, 2026.
Martha R. McQueen-Legohn, Mayor
ATTEST:
________________________________
Georgianna Nicole Alvarez
City Clerk
Agenda Item No. 10 Page 3 of 142 CC Agenda 06-15-2026
CC Resolution No. ___, Page 2 of 2
CERTIFICATION
STATE OF CALIFORNIA )
COUNTY OF VENTURA ) SS.
CITY OF PORT HUENEME )
I, Georgianna Nicole Alvarez, City Clerk of the City of Port Hueneme, California, do hereby certify that the foregoing Resolution No. ____ was duly adopted at the regular meeting of the City Council on the 15th day of June, 2026, by the following vote:
AYES:
NOES:
ABSTAIN:
ABSENT:
Dated:
Georgianna Nicole Alvarez
City Clerk
Agenda Item No. 10 Page 4 of 142 CC Agenda 06-15-2026
2025
URBAN WATER MANAGEMENT PLAN
City of Port Hueneme, CA
Attachment B
Agenda Item No. 10 Page 5 of 142 CC Agenda 06-15-2026
2025
URBAN WATER MANAGEMENT PLAN
City of Port Hueneme, CA
250 N Ventura Rd, Port Hueneme, CA 93041
(805) 986-6563, Fax: (805) 986-6660
PWS No. CA5610009
June 2026
Prepared by:
West & Associates Engineering, Inc.
78 Anacapa Ct. Foothill Ranch, CA
Agenda Item No. 10 Page 6 of 142 CC Agenda 06-15-2026
2025 URBAN WATER MANAGEMENT PLAN
CITY OF PORT HUENEME
1 URBAN WATER MANAGEMENT PLAN 2025
Table of Contents
Section 1: Introduction.....................................................13
1.1. PURPOSE AND SUMMARY ............................................................................................ 13
1.2. COORDINATION ............................................................................................................ 16
1.3. DWR UPDATES FOR THE 2025 UWMPS ........................................................................ 18
1.4. UPDATES TO THE CITY’S UWMP ................................................................................... 19
1.5. FORMAT OF THE 2025 UWMP...................................................................................... 20
1.6. LAY DESCRIPTION.......................................................................................................... 21 Section 2: Service Area Description..................................23
2.1. WATER SYSTEM HISTORY.............................................................................................. 23
2.2. LAND USE & ECONOMY ................................................................................................ 24
2.2.1. City Land Use ....................................................................................................................24
2.3. CLIMATE ........................................................................................................................ 26
2.3.1. Climate Change.................................................................................................................27
2.3.2. Vulnerability Screening.....................................................................................................28
2.3.3. Port of Hueneme PACED initiative....................................................................................28
2.4. POPULATION................................................................................................................. 29
2.4.1. Service Area Population....................................................................................................29
2.4.2. City Population Forecasts .................................................................................................29
2.4.3. Social, Economic, and Demographic Factors....................................................................29
2.5. WATER SYSTEM............................................................................................................. 30 Section 3: Water Sources and Supplies ............................33
3.1. INTRODUCTION............................................................................................................. 33
3.2. IMPORTED WATER SOURCES........................................................................................ 33
3.4 GROUNDWATER............................................................................................................ 41
3.4.1 Oxnard Plain Groundwater Basin...............................................................................................42
3.4.2 Pleasant Valley Groundwater Basin...........................................................................................42
3.4.4 United Water Conservation District......................................................................................44
3.5.1 Planned/Projected Supply Projects.......................................................................................46 Agenda Item No. 10 Page 7 of 142 CC Agenda 06-15-2026
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3.6 RELIABILITY OF SUPPLIES .............................................................................................. 46 Section 4: Recycled Water Opportunities.........................47
4.5 OVERVIEW..................................................................................................................... 47
4.6 WASTEWATER COLLECTION SYSTEM............................................................................ 48
4.7 RECYCLED WATER ......................................................................................................... 51 Section 5: Water Quality ..................................................57
5.5 OVERVIEW..................................................................................................................... 57
5.6 WATER QUALITY STANDARDS....................................................................................... 57
5.6.1 Federal Regulations...............................................................................................................57
5.6.2 State Regulations ..................................................................................................................58
5.6.3 State Drinking Water Standards............................................................................................58
5.6.4 Hexavalent Chromium (Cr6)..................................................................................................59
5.6.5 City Standards .......................................................................................................................59
5.7 QUALITY OF WATER SOURCES ...................................................................................... 60
5.7.1 Imported Surface Water Quality...........................................................................................60
5.7.2 Imported Groundwater Quality ............................................................................................61
5.8 IMPACTS OF WATER QUALITY ...................................................................................... 62
5.8.1 Impacts of Abandoned Wells................................................................................................62
5.8.2 Groundwater Contamination Response ...............................................................................65
5.8.3 Sanitary Surveys by DDW......................................................................................................65
5.8.4 Impacts on Management & Reliability..................................................................................66 Section 6: Water Use........................................................67
6.5 OVERVIEW..................................................................................................................... 67
6.6 COVID PANDEMIC’S EFFECT ON THE WATER SYSTEM.................................................. 67
6.7 CURRENT CITY WATER NEEDS....................................................................................... 68
6.8 CLIMATE IMPACTS ON WATER USE .............................................................................. 68
6.8.1 California Water Plan Update 2023 ......................................................................................70
6.9 WATER USE ................................................................................................................... 70
6.9.1 Recent Water Use .................................................................................................................70
6.10 WATER USE BY SECTOR................................................................................................. 71 Agenda Item No. 10 Page 8 of 142 CC Agenda 06-15-2026
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3 URBAN WATER MANAGEMENT PLAN 2025
6.10.1 Service Connections/Accounts .........................................................................................71
6.10.2 Distribution System Losses...............................................................................................74
6.10.3 2028 Water Loss Standard................................................................................................74
6.11 URBAN WATER USE OBJECTIVE .................................................................................... 75
6.11.1 Key Highlights from the Report ........................................................................................75
6.11.2 Objectives Calculated with Future Standards...................................................................75
6.12 WATER CONSERVATION ACT ........................................................................................ 76
6.12.1 Act Background (SBx7-7)...................................................................................................76
6.12.2 Exempt Agencies...............................................................................................................80
6.12.3 SBx7-7 Baseline & Target..................................................................................................80
6.12.4 SBx7-7 Target Compliance ................................................................................................83
6.13 PROJECTED WATER DEMAND....................................................................................... 83
6.13.1 Passive Savings..................................................................................................................83
6.13.2 Climate Changes Consideration........................................................................................83
6.13.3 Projected Water Use by Sector.........................................................................................84 Section 7: Reliability Planning ..........................................87
7.5 OVERVIEW..................................................................................................................... 87
7.6 HISTORIC DROUGHTS.................................................................................................... 88
7.7 RECENT DROUGHT (2020-2022) ................................................................................... 88
7.8 STATE WATER SUPPLY RELIABILITY............................................................................... 90
7.8.1 State Water Project (SWP) Reliability ...................................................................................90
7.9 CITY SUPPLY RELIABILITY............................................................................................... 95
7.9.1 Reliability of UWCD Sources .................................................................................................95
7.9.2 Reliability of CMWD Sources.................................................................................................95
7.9.3 Reliability of Alternative Sources..........................................................................................96
7.10 DROUGHT RISK ASSESSMENT ....................................................................................... 96
7.10.1 Basis for Projected Demands............................................................................................97
7.10.2 Demand Increase Factors .................................................................................................97
7.10.3 Basis for Projected Supplies..............................................................................................98
7.10.4 Tabular Comparisons........................................................................................................98
7.11 ENSURING ADEQUATE SUPPLY ................................................................................... 106
7.12 WSCP SUPPLY AUGMENTATION ................................................................................. 106 Agenda Item No. 10 Page 9 of 142 CC Agenda 06-15-2026
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Section 8: Contingency Planning .................................... 107
8.5 INTRODUCTION........................................................................................................... 107
8.6 NEED FOR CONTINGENCY PLANS................................................................................ 108
8.6.1 Recent California Water Code Amendments......................................................................108
8.7 LEGAL AUTHORITY ...................................................................................................... 109
8.8 WATER SUPPLY RELIABILITY ANALYSIS ....................................................................... 110
8.8.1 WSCP Re-Adoption..............................................................................................................110
8.9 City Staff Response ..................................................................................................... 110
8.10 ANNUAL WATER SUPPLY AND DEMAND ASSESSMENT PROCEDURES....................... 110
8.10.1 DECISION-MAKING PROCESS ..........................................................................................111
8.10.2 ASSESSMENT METHODOLOGY........................................................................................112
8.10.3 LOCALLY APPLICABLE EVALUATION CRITERIA ................................................................113
8.11 SHORTAGE STAGES AND SHORTAGE RESPONSE ACTIONS......................................... 113
8.11.1 STAGES OF ACTION.........................................................................................................113
8.11.2 Shortage Response Actions ............................................................................................113
8.11.3 Operational Changes.......................................................................................................117
8.11.4 Operational Changes.......................................................................................................117
8.12 DISASTER MANAGEMENT ........................................................................................... 117
8.12.1 Emergency Response Plan..............................................................................................117
8.12.2 Seismic Risk Assessment and Mitigation Plan Introduction ...........................................118
8.12.3 Ventura County Multi‐Hazard Mitigation Plan ...............................................................118
8.12.4 Faults, Earthquakes and Liquefaction.............................................................................118
8.12.5 Mitigation Plan................................................................................................................119
8.13 COMMUNICATION PROTOCOLS ................................................................................. 122
8.13.1 Compliance and Enforcement ........................................................................................125
8.13.2 FINANCIAL CONSEQUENCES OF WSCP IMPLEMENTATION............................................125
8.14 MONITORING AND REPORTING.................................................................................. 126
8.15 WSCP ADOPTION AND REFINEMENT PROCEDURES................................................... 126
8.15.1 Council Resolution ..........................................................................................................126
8.15.2 WSCP Refinement Procedures........................................................................................126
8.15.3 Cyclical Updates..............................................................................................................127
8.15.4 Data-Driven Updates ......................................................................................................128 Agenda Item No. 10 Page 10 of 142 CC Agenda 06-15-2026
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5 URBAN WATER MANAGEMENT PLAN 2025
8.15.5 Externally-Driven Updates..............................................................................................128
8.15.6 WSCP Re-Adoption .........................................................................................................128 Section 9: Conservation Measures................................. 129
9.5 OVERVIEW................................................................................................................... 129
9.6 DWR DMMs FOR 2025 UWMPs.................................................................................. 130
9.7 CalWEP BMPs.............................................................................................................. 130
9.7.1 2025 Updates to CalWEP BMPs ..........................................................................................131
9.8 CITY CONSERVATION MEASURES................................................................................ 131
9.8.1 DMM No. 2: Metering.........................................................................................................133
9.8.2 DMM No. 4: Public Education & Outreach .........................................................................133
9.8.3 DMM No. 6: Water Conservation Program Coordination and Staffing Support ................133
9.8.4 Updates on Conservation Programs Since 2020 UWMP.....................................................134
9.8.5 DMM No. 7: Other Conservation Measures .......................................................................134
9.8.6 Asset Management .............................................................................................................134
9.8.7 Wholesale Supplier Assistance Programs...........................................................................134
9.9 CONTINUED IMPLEMENTATION ................................................................................. 135 List of Tables
Table 1.1: Coordination and Public Involvement ......................................................................... 17 Table 2.1 Current Land Use & Economic Statistics for Ventura County....................................... 25 Table 2.2 Historical Climate (1998-2026) ..................................................................................... 26 Table 2.3 Recent Climate (2025)................................................................................................... 26 Table 2.4 City of Port Hueneme Population ................................................................................. 29 Table 2.5 City of Port Hueneme Water Service Area Projected Population ................................ 29 Table 3.1 Imported Water Supply................................................................................................. 41 Table 6.1 City Recent Water Use .................................................................................................. 71 Table 6.2 Service Connections (2025)........................................................................................... 71 Table 6.3 Recent Water Demand by Sector (AF) .......................................................................... 72 Table 6.4 Objectives Calculated with Future Standards............................................................... 76 Table 6.5 City of Port Hueneme Water Use (GPCPD)................................................................... 82 Table 6.6 City of Port Hueneme SBx7-7 2020 Water Use Targets................................................ 82 Table 6.7 Projected Water Demand by Sector ............................................................................. 85 Table 7.1 City of Port Hueneme Water Supply Availability & Demand Projections Normal Water Year (AF)........................................................................................................................................ 99 Agenda Item No. 10 Page 11 of 142 CC Agenda 06-15-2026
6 2025 URBAN WATER MANAGEMENT PLAN
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Table 7.2 City of Port Hueneme Water Supply Availability & Demand Projections Single Dry Year (AF).............................................................................................................................................. 100 Table 7.3 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2026-2030) (AF) ............................................................................................................... 101 Table 7.4 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2031-2035) (AF) ............................................................................................................... 102 Table 7.5 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2036-2040) (AF) ............................................................................................................... 103 Table 7.6 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2041-2045) (AF) ............................................................................................................... 104 Table 7.7 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2046-2050) (AF) ............................................................................................................... 105 Table 8.1 Key Data Inputs........................................................................................................... 112 Table 8.2 Water Shortage Stages & Reduction Targets.............................................................. 113 Table 8.3 Restrictions and Prohibitions on End Use................................................................... 114 Table 8.4 Stages of Water Shortage Contingency Plan ‐ Consumption Reduction Methods..... 115 Table 8.5 Summary of Impacts from Critical Facilities and Infrastructure ................................. 120 Table 8.6 Stages of Water Shortage Contingency Plan – Communication Protocols................. 123 Table 8.7 Excessive Water Use Penalties and Charges............................................................... 124 List of Figures
Figure 1.1 UWMPs are Governed by State Law............................................................................ 14 Figure 1.2 UWMP Act Establishment and Amendment ............................................................... 15 Figure 2.1 City of Port Hueneme – Location Map ........................................................................ 31 Figure 2.2 City of Port Hueneme - Service Area Map................................................................... 32 Figure 5.1 MWD’s Joseph Jensen Treatment Plant Provides a Safe Supply of Water.................. 60 Figure 5.2 El Rio Treatment Plant ................................................................................................. 61 Figure 5.3 BWRDF Water Quality Sampling Station ..................................................................... 64 Figure 6.1 Current Water Demand by Sector (in 2025)................................................................ 73 Figure 6.2 California's 2020 Water Conservation Goals............................................................... 77 Figure 6.3 California's 2020 Water Conservation Goals............................................................... 78 Figure 6.4 South Coast Hydrologic Region.................................................................................... 79 Figure 6.5 Procedure for Determining Baseline Per Capita Water Use........................................ 81 Figure 6.6 Procedure for Determining Target Per Capita Water Use........................................... 81 Figure 6.7 Projected Water Demand by Sector (in 2050)............................................................. 86 Figure 7.1 Governor Newsom at Lake Mendocino in Ukiah on April 21, 2021 ............................ 89 Figure 7.2 Lake Oroville During Drought of 2020-2022 (October 4, 2022) .................................. 92 Figure 7.3 Lake Oroville After Drought (June 12, 2023) ............................................................... 92 Figure 7.4 California State Reservoir Levels (May 2026).............................................................. 93 Figure 7.5 SWP Table A Deliveries................................................................................................ 94 Figure 8.1: Sample Annual Assessment Decision-Making Process Timeline.............................. 111 Agenda Item No. 10 Page 12 of 142 CC Agenda 06-15-2026
2025 URBAN WATER MANAGEMENT PLAN
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7 URBAN WATER MANAGEMENT PLAN 2025
Figure 8.2: CMWD’s Lake Bard (Potential Reserves for WSCP Allocations) ............................... 116 Figure 8.3: Earthquake Fault Line Map....................................................................................... 121 Figure 8.4: Liquefaction Susceptibility Map................................................................................ 122 Figure 8.5 Agency Brackish Water Reclamation Demonstration Facility ................................... 127 Figure 9.1 CUWCC became CalWEP in January 2018 ................................................................. 130 Figure 9.2 Non-Functional Turf Removal Conserve Water......................................................... 131 Figure 9.3 Conservation Measures for 2025 UWMPs: CalWEP and DWR Compared ................ 132 Figure 9.4 Water Meter with AMI Technology........................................................................... 133 Agenda Item No. 10 Page 13 of 142 CC Agenda 06-15-2026
8 2025 URBAN WATER MANAGEMENT PLAN
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2025 URBAN WATER MANAGEMENT PLAN
Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix I
Appendix J
Appendix K
Appendix L
Appendix M
Appendix N
Appendix O
Appendix P
Adoption Resolution for 2025 UWMP
Adoption Resolution for 2025 WSCP
UWMP Act
Dept. of Water Resources UWMP Checklist
Dept. of Water Resources UWMP Data Tables
Dept. of Water Resources SBx7-7 Tables
UWMP Notices: 60-Day Notice, 2-Week and 1 Week Notices
Final Transmittals to County and State Library
Oxnard Subbasin Climate Change
Emergency Ordinance E
Sections of the Oxnard Subbasin GSP
Water Saving Levels and Actions
Port Hueneme Water Agency Staff Report (Rosemont Preserve) 2021 Port Hueneme Water Agency Hazard Mitigation Plan
2025 Recycled Water Feasibility Study
(PLACEHOLDER)
(PLACEHOLDER)
Agenda Item No. 10 Page 14 of 142 CC Agenda 06-15-2026
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9 URBAN WATER MANAGEMENT PLAN 2025
ACRONYMS
AB Assembly Bill
AAC All-American Canal
Act Urban Water Management Planning Act
AF Acre-Foot
AFY Acre-Feet per Year
AMI Automatic Metering Infrastructure
AP Allocation Plan
AWIA America’s Water Infrastructure Act
AWPF Advanced Water Purification Facility
Basin Verdugo Groundwater Basin
BDCP Bay-Delta Conservation Plan
BMP Best Management Practice
Board Metropolitan Water District of Southern California’s Board of Directors
BWRDF Brackish Water Reclamation Demonstration Facility CDP Census Designated Place
CDPH California Department of Public Health
CFS Cubic Feet per Second
CIBCSD Channel Islands Beach Community Services District CII Commercial/Industrial/Institutional
CIMIS California Irrigation Management Information System CMWD Calleguas Municipal Water District
CRA Colorado River Aqueduct
CUWCC California Urban Water Conservation Council
CVP Central Valley Project
CVWD Port Hueneme Water Agency
CWC California Water Code
DBPs Disinfection Byproducts
DDW Division of Drinking Water
DMM Demand Management Measure
DMMs Demand Management Measures
DOE Department of Energy
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DOF Department of Finance
DRA Drought Risk Assessment
DWSAP Drinking Water Source Assessment and Protection
DWR Department of Water Resources
DU Dwelling Unit
eARDWP Electronic Annual Reports to the Drinking Water Program (SWRCB)
EIR Environmental Impact Report
EIS Environmental Impact Statement
EPA Environmental Protection Agency
Eto Evapotranspiration
FCGMA Fox Canyon Groundwater Management Agency
FMWD Foothill Municipal Water District
GIS Geographic Information System
GPCD Gallons per Capita per Day
GPF Gallons per Flush
GPM Gallons per Minute
GREAT Groundwater Recovery Enhancement and Treatment
GSP Groundwater Sustainability Plan
GW Groundwater
GWP Glendale Water and Power
HECW High Efficiency Clothes Washer
HEN High Efficiency Nozzle
HET High Efficiency Toilet
HEW High Efficiency Washer
HR Hydrologic Region
IID Imperial Irrigation District
IPR Indirect Potable Reuse
IRP Integrated Resources Plan
IRWM Integrated Regional Water Management
IWA International Water Association
JWPCP Joint Water Pollution Control Plant
LACSD Sanitation Districts of Los Angeles County
LADWP Los Angeles Department of Water and Power
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11 URBAN WATER MANAGEMENT PLAN 2025
LAGWRP Los Angeles/Glendale Water Reclamation Plant
LAS Lower Aquifer System
LCID La Cañada Irrigation District
LRWSP Local, Reliable Water Supply Program
MAF Million Acre-Feet
MBR Membrane Bioreactor
MCL Maximum Contaminant Level
MDD Maximum Daily Demand
MG Million Gallons
MGD Million Gallons per Day
mg/L Milligrams per Liter
MHP Multi-Hazard Plan
μg/L Micrograms per Liter
MOU Memorandum of Understanding
MWD Metropolitan Water District of Southern California
MWELO Model Water Efficient Landscape Ordinance
MTBE Methyl Tertiary Butyl Ether
NBVC Naval Base Ventura County
NDMA N-Nitrosodimethylamine
ng/L Nanograms per Liter
NTU Nephelometric Turbidity Units
O-H System Oxnard–Hueneme Pipeline System
PCA Possible Contaminating Activities
PCE Tetrachloroethylene
PFAS Per- and Polyfluoroalkyl Substances
PHETs Premium High Efficiency Toilets
PHG Public Health Goal
PHWA Port Hueneme Water Agency
PPCPs Pharmaceuticals and Personal Care Products
PVID Palo Verde Irrigation District
PWS Public Water System
QSA Quantification Settlement Agreement
RHNA Regional Housing Needs Assessment
RO Reverse Osmosis
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2025 URBAN WATER MANAGEMENT PLAN
RUWMP Regional Urban Water Management Plan
RWQCB Regional Water Quality Control Board
SB Senate Bill
SBx7-7 Senate Bill x7-7
SCADA Supervisory Control and Data Acquisition
SCAG Southern California Association of Governments
SDP Seawater Desalination Program
SDWA Safe Drinking Water Act
SMSS Soil Moisture Sensor System
SQ FT Square Feet
SWP State Water Project
SWRCB State Water Resources Control Board
TDS Total Dissolved Solids
TEA Temporary Extraction Allocation
TOC Total Organic Carbon
UAS Upper Aquifer System
ULARA Upper Los Angeles River Area
USFWS U.S. Fish and Wildlife Service
USNAWS United States Navy Air Weapons Station
USNCBC United States Naval Construction Battalion Center UWCD United Water Conservation District
UWMP Urban Water Management Plan
VOC Volatile Organic Compound
WARN Water Agency Response Network
WBIC Weather-Based Irrigation Controller
WDR Waste Discharge Requirement
WRP Water Reclamation Plant
WSAP Water Supply Allocation Plan
WSCP Water Shortage Contingency Plan
WSDM Water Surplus and Drought Management Plan
WSS Watershed Sanitary Survey
WWTP Wastewater Treatment Plant
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13 URBAN WATER MANAGEMENT PLAN 2025
1.1. PURPOSE AND SUMMARY
This is the 2025 Urban Water Management
Plan (“UWMP” or “Plan”) for the City of Port
Hueneme (hereinafter “City”). This Plan has
been prepared in compliance with the Urban
Water Management Planning Act (Act),
which was established in 1983 and has been
codified into the California Water Code
(CWC)sections 10610 through 10657. A copy
of the Act can be found in Appendix C to this
2025 UWMP.
As part of the Act, the legislature declared
that waters of the state are a limited and
renewable resource subject to ever
increasing demands; that the conservation
and efficient use of urban water supplies are
of statewide concern; that successful
implementation of plans is best
accomplished at the local level; that
conservation and efficient use of water shall
be actively pursued to protect both the
people of the state and their water
resources; that conservation and efficient
use of urban water supplies shall be a
guiding criterion in public decisions; and that
urban water suppliers shall be required to
develop water management plans to
achieve conservation and efficient use.
The Act requires “every urban water supplier
providing water for municipal purposes to
more than 3,000 customers or supplying
more than 3,000 acre-feet of water annually,
to prepare and adopt, in accordance with
prescribed requirements, an Urban Water
Management Plan.”
1 Section 1:
Introduction
In accordance with
the Water Code, an
Urban Water
Management Plan is
required to be
updated every five
(5) years.
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These plans must be filed with the California
Department of Water Resources (DWR)
every five (5) years, describing and
evaluating reasonable and practical efficient
water uses, reclamation, and conservation
activities. The CWC mandates that each
water supplier shall update its plan at least
once every five years on or before July 1, in
years ending in six and one.
Figure 1.1 UWMPs are Governed by State Law
The Act has been amended multiple times
since its initial passage in 1983. A summary
of the amendments is provided in Figure 1.2.
The intent of the amendments was to
broaden the scope of the UWMPs,
encourage public participation, and add
financial incentives to the UWMPs. A
significant amendment to the Act was a 2009
amendment (Senate Bill SBx7-7) signed by
former Governor Arnold Schwarzenegger.
The Senate Bill, also known as the “Water
Conservation Act” required that per capita
water use within an urban water supplier's
service area decrease by 20 percent by the
year 2020 in order to receive grants or loans
administered by DWR or other state
agencies. Each urban retail water supplier
developed water use
“targets” for 2015 and
for 2020. The “target”
date for 2020 passed on
December 31, 2020.
Urban water suppliers
whose 2020 actual water
use does not meet the target requirements
established by this bill are not eligible for
state water grants or loans This included, but
was not limited to, the following funding
sources:
• Drinking Water State Revolving Fund:
Primarily a source of funds to help
correct deficiencies
• Proposition 1: Primarily a source of
funds related to supplies &
infrastructure
• Proposition 4: Primarily a source of
funds related to climate-related
programs
• Proposition 50: Primarily a source of
funds related to security & treatment
technology
• Proposition 84: Primarily a source of
funds related to protection from
pollution
Amendments to
the Act have
added financial
incentives to
UWMPs.
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15 URBAN WATER MANAGEMENT PLAN 2025
Figure 1.2 UWMP Act Establishment and Amendment
Present: The UWMP guidebook was released on
November 17, 2025 with no UWMP Act Amendments.
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Agencies that submit their UWMPs past the
July 2026 deadline are still technically
eligible for grants or loans, provided that the
UWMP addresses the requirements of the
Act. However, applications for such funds
are subject to legal challenges coming from
competing agencies for the same funding, if
the competing agencies become aware of
the timeframe in which an UWMP was
submitted.
UWMPs are considered to be a foundation
document and a source of information for
Water Supply Assessments (Senate Bill 610)
and Written Verifications of Water Supply
(SB 221). In addition, an UWMP may serve as
a long-range planning document for water
supply, a source of data for development of
a regional water plan, and a source
document for cities and counties as they
prepare their General Plans. These planning
documents are linked, and their accuracy
and usefulness are interdependent.
One of the primary objectives of the Act is
the assessment of demands and supplies
over a 20-year or a 25-year planning horizon
under normal rainfall conditions, as well as
under various drought conditions. The Act
also requires water shortage contingency
planning and drought response actions to be
included in the UWMP. In short, this Plan is
a management tool that provides a general,
long-term framework for action, rather than
a detailed blueprint for supply and demand
management. This Plan evaluates the City’s
supply and demand projections over a 25-year
planning horizon, and what mix of programs
should be explored for ensuring that such
water will be available. As part of the City's
past and current water conservation
policies, the City is currently implementing
many facets of this plan already to achieve
its water conservation goals.
1.2. COORDINATION
The process of preparing and submitting an
UWMP is a transparent process that requires
opportunities for outside-agency and
general public involvement. In preparing this
2025 UWMP, the City has encouraged broad
community participation. The City notified
the agencies that the City interacts with
more than 60 days in
advance of the City
Council’s adoption of
the 2025 UWMP. The
City also made the
draft 2025 UWMP
available at the City’s
Council’s Chamber
and on the City’s website, leading up to a
public hearing on the 2025 UWMP. Notices
of the public hearing were published in the
local press and on the City’s website for a
two-week period. On June 15, 2026, the City
held a noticed public hearing to review and
accept comments on the 2025 UWMP.
Following
The Agency’s 2025
UWMP is a
collaborative effort
involving its own
staff, outside
agencies, and the
general public.
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17 URBAN WATER MANAGEMENT PLAN 2025
Table 1.1: Coordination and Public Involvement
Agency
Participated
in Plan
Preparation
Contacted
for
Assistance
Commented
on Draft
Notified
of Public
Hearing
Attended
Public
Hearing
City Staff X
City Council X
Port Hueneme Water
Agency X
City of Oxnard X
County of Ventura
Environmental Health
Division
X
Notes:
1. “60-Day” notice letters were sent out to all agencies (except the City’s own) as required by CWC § 10621(b):
2. 2-week and 1-week notices were published in the local newspaper.
3. Appendix G contains copies of the 60-day notice and the 2-week and 1-week notices.
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the public hearing, the City officially adopted
the 2025 UWMP through board resolution,
of which a copy is included in Appendix A.
As required by the Act, the 2025 UWMP is
being prepared by the City and will be
submitted to DWR, the California State
Library, and any city, special district, or
county within which it provides water to no
later than 30 days after adoption. The 2025
UWMP will be available to the public during
normal business hours within 30 days of
submitting the 2025 UWMP to DWR.
1.3. DWR UPDATES FOR THE 2025
UWMPS
There have been minor changes to the CWC
affecting the 2025 UWMPs. The changes
include the following:
• Clarified Reporting Requirements for
SBx7-7: Agencies must provide a
description in the 2025 UWMP how their
water use goals of the 20x2020 were
met. An urban retail water supplier’s
failure to meet those goals will establish
a violation of law for purposes of any
state administrative or judicial
proceeding. If the agency did not achieve
its targeted reduction in 2020, the
agency must show in its 2025 UWMP
whether it met their 2020 Target in 2025
to be eligible for state funds. Currently,
the CWC does not set an end date for
reporting on a supplier’s progress in
meeting the 2020 Target. (CWC §
10608.40)
• Water Losses: Retail Suppliers must
indicate the quantity of water losses for
five years by reporting data from their
Validated Water Loss Audits, discuss
their progress toward compliance with
the 2028 Water Loss Standard, and show
whether they met the Water Loss
Performance Standard enacted by the
State Water Resources Control Board
(SWRCB). (CWC § 10631 (d) (3) (C), SB
1414, 2019). Suppliers can simply
provide a link to their water loss reports
submitted to DWR’s Water Loss Audit
Program.
• Updates to Demand Management
Measures (DMMs): Retail Suppliers with
an annual actual water use above their
Urban Water Use-Objective (UWUO)
must include a narrative describing
additional DMMs the supplier plans to
use to achieve its UWUO by January 1,
2027. (CWC § 10609.25, AB 1414, 2019)
• UWUO and Water Use Reporting: The
standard for indoor residential water use
from January 1, 2025 to January 1, 2030
was lowered from 52 to 47 Gallons per
Capita per Day (gpcd). Until January 1,
2025, the standard was 55 gpcd.
Beginning January 1, 2030 the standard
was lowered from 50 to 42 gpcd. DWR, in
coordination with SWRCB, will conduct
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19 URBAN WATER MANAGEMENT PLAN 2025
an investigation to determine if the date
for the 2030 indoor residential use
standard will be changed. The City won’t
be subject to enforcement pursuant to
this chapter solely for failing to meet the
indoor residential use standard. (CWC §
10609.4).
• Irrigation of Nonfunctional Turf:
”Functional turf” is ground cover surface
of turf located in a recreational use area
or community space. ”Nonfunctional
turf” means any turf that is not
functional turf, and includes turf located
within street rightsof-way and parking
lots. Turf enclosed
by fencing or other
barriers to
permanently
preclude human
access for
recreation or assembly is Nonfunctional
turf. The use of potable water to irrigate
nonfunctional turf is wasteful and
incompatible with state policy relating to
climate change, water conservation, and
reduced reliance on the Sacramento-San
Joaquin Delta ecosystem (CWC § 110).
The use of potable water to irrigate
Nonfunctional turf on all properties
owned by the City are to be phased out
by January 1, 2027. All other
Commercial, Industrial, and Institutional
(CII) properties are to be phased out by
January 1, 2028. After which it will be
prohibited with a few exceptions (CWC §
10618.14). The website
saveourwater.com/ provides
information and resources on converting
nonfunctional turf to native vegetation.
• Definitions: New definitions were added
or existing definitions were modified,
which include Nonfunctional Turf, CII
water use, Large landscape, Gross water
use, Potable reuse, Urban water use
objective, Affordable housing, and
Disadvantaged community to name a
few (CWC § 10608.12).
In addition, there are several optional or
voluntary categorical and data reporting
changes to the UWMP Act. These include an
optional Planning Tool that suppliers can use
to report and assess water use and supply in
order to better conduct the Reliability
Assessment and Drought Risk Assessment, a
Potable and Non-Potable Planning Tool,
Potable and Non-Potable Submittal Tables,
as well as various optional data reporting.
1.4. UPDATES TO THE CITY’S UWMP
In addition to required updates described in
the previous section, the City’s 2025 UWMP
has undergone some changes from the 2020
UWMP. A summary of the key changes to
the UWMP are as follows:
• New Format: Format of the UWMP has
been changed to include a new look and
new arrangement of sections. The new
The use of potable
water to irrigate
nonfunctional turf
is incompatible
with state policy
relating to climate
change.
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2025 URBAN WATER MANAGEMENT PLAN
arrangement helps the discussion of
certain topics which precede other
topics. See Section 1.5 for the format of
this 2025 UWMP.
• DWR & Water Code: A listing of DWRrequired UWMP updates (see previous Section).
• City Development Growth: An updated
look at development which took place in
the City since the 2020 UWMP.
• Water Sources and Supplies: A broader,
more in-depth discussion of water
sources and supplies.
• Recycled Water: An updated look at
recycled water opportunities in the City.
• Water Quality: An update to new
regulations and contaminants effecting
water quality and treatment.
• Water Use: Updated information on
recent water use quantities and a deeper
discussion on water use parameters.
• Supply v Demand: Updated information
on projected supplies vs demands, and a
discussion on recent regional droughts
affecting the City. There is also an
expansion on the discussion of the City’s
source water reliability.
• Contingency Planning: Updated
information on the City’s contingency
plans, including the City’s Ordinances.
• Conservation Measures: Updated
information on the City’s conservation
measures, which reflect the previous
(2020) changes by DWR.
In addition to these changes, there are
multiple minor changes. The changes reflect
both those that are required by the CWC and
those that are voluntarily included for the
benefit of the City.
1.5. FORMAT OF THE 2025 UWMP
The information contained in this 2025
UWMP corresponds to the items in the
UWMP Act and other amendments to the
Water Code. The sections of the UWMP are
as follows:
Section 1 - Introduction
This section describes the UWMP Act, the
UWMP preparation and adoption process,
updates to the UWMP, and a lay description
of this entire document.
Section 2 – Service Area Description
This section outlines the history and
development of the City and the City ’s water
supply system, a description of its existing
service area, the local climate, population
served, and some basic statistics on the
City’s water distribution system.
Section 3 – Water Sources & Supplies
This section describes the existing potable
water supplies available to the City. In
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21 URBAN WATER MANAGEMENT PLAN 2025
addition, this section evaluates potential
future water supply sources.
Section 4 – Recycled Water Opportunities
This section discusses potential recycled
water supplies, an assessment of potential
customers, and methods to expand the use
of recycled water.
Section 5 – Water Quality
This section discusses the quality of the
City’s potable water supply sources,
including imported water and groundwater.
This section also discusses drinking water
standards and the effect that water quality
has on management strategies and supply
reliability.
Section 6 – Water Use
This section describes past, current and
projected water usage within the City’s
service area. Past and projected water use in
this section is broken down by sector. This
chapter also discusses the requirements of
the 2009 Water Conservation Act (SBx7-7),
including the 2020 Water Use Targets.
Section 7 – Reliability Planning
This section presents a drought risk
assessment of the City’s water system. The
drought risk assessment is an assessment of
the reliability of the City’s water supplies by
comparing projected future water demands
with expected available water supplies
under three different hydrologic conditions:
normal year; a single dry year; and multiple
dry years. This 2025 UWMP concludes that if
projected imported and local supplies are
developed as anticipated, no water
shortages are anticipated in the City’s
service area during the planning period.
Section 8 – Contingency Planning
This section serves as the City’s Water
Shortage Contingency Plan (WSCP). A WSCP
is a response plan to water shortages, as well
as those efforts that will be utilized in the
event of water supply interruptions, such as
power outages, earthquakes, or droughts.
This section also describes regional response
efforts to water supply interruptions.
Section 9 – Conservation Measures
This section addresses the City’s compliance
with water conservation measures that
correspond to the seven (7) Demand
Management Measures (DMMs) described
in the 2025 UWMP Guidebook, which were
previously the 14 DMMs listed in the Act.
The DMMs also correspond to the current
Best Management Practices (BMPs) from the
California Water Efficiency Partnership
(CalWEP).
Appendices
The Appendices contain references and
specific documents that contain reference
data used to prepare this 2025 UWMP.
1.6. LAY DESCRIPTION
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To facilitate effective and efficient
management of water supplies, and in
compliance with the UWMP Act and the
Water Conservation Act of 2009, the City has
prepared this 2025 UWMP. This UWMP
includes background information regarding
the City’s history, water system, and water
supplies. This UWMP also analyzes recent
water demands and projects future water
supply capacity and water demands through
2050. The effects of water quality, drought,
and emergencies on the City’s water supply
reliability are also analyzed.
As indicated by Section 7: of this UWMP, the
City does not expect to have a water supply
shortage through 2050. Furthermore, this
UWMP concludes that the City’s water
supplies, which are obtained from local
groundwater basins and wholesale agencies,
are resilient to droughts. A basic overview of
the City’s water system can be found in
Section 2:. Water quality concerns do have
an occasional impact on the consistency of
groundwater supplies, but the City’s
groundwater quality is not expected to be
affected. These are described in Section 5:.
This 2025 UWMP recommends that the City
implement water operation management
tools that maximize the use of local
groundwater production and imported
water to meet its water demands. This
UWMP also recommends conservation tools
that will enable the City’s residents to
conserve water and maximize water use
efficiency. These are described in Section 9:.
If the water consumption rates in the City
decrease as this UWMP projects, the City can
expect to have an adequate water supply in
future years. This is in spite of projected
population growth over the next 25 years.
Finally, this UWMP recommends that severe
droughts or sudden supply interruptions be
addressed by following the criteria of the
WSCP, as described in Section 8: of this
UWMP.
Since UWMPs are due for revision every five
years, this UWMP is projected to be in effect
until the year’s end of 2030. At that time the
City's 2030 UWMP will begin development
and adoption.
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2. 2.1. WATER SYSTEM HISTORY
The City of Port Hueneme (City)
incorporated in 1948, is located midway
between the cities of Santa Barbara and Los
Angeles, on the Pacific Coast in western
Ventura County and encompasses an
incorporated area of 4.7 square miles.
The local economy is composed of varied
commercial interests. Major employers
include the Port of Hueneme, retail stores,
light manufacturing, restaurants,
educational institutions, and the US Navy.
Cargo through the Port of Hueneme has
increased to record levels prompting the
federal designation as a Port of Entry and
Foreign Trade Zone. A number of business
and industrial parks generate extensive
commercial activity. Attractive beaches and
harbors draw significant tourism to the area.
During the last 50 years, the City has
experienced a moderate growth in
population. United States Census data for
2020 indicated a population of
approximately 23,607 which represents a 10
percent decrease since 2010. The City also
experiences a moderate seasonal population
increase during the summer months due to
tourism and agriculture. According to the
Ventura Council of Governments, the City
population per dwelling unit ratio is
approximately 2.8 to 1 and is not expected
to change appreciably in the next 20 years.
Prior to 1994, the City relied solely on
groundwater supplies through a
combination of wells owned and operated
by the City and UWCD. Seawater intrusion in
2 Section 2:
Service Area
Description
Formed in 1948, the
City of Port Hueneme
consists of 6,500 water
service connections
over a service area of
4.7 square miles
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the Oxnard Plain aquifer systems rendered
many wells unusable for drinking water
purposes. Currently, the City purchases all
potable water supplies from the Agency.
2.2. LAND USE & ECONOMY
The City is located in Ventura County.
Ventura County encompasses an area of
2,208 square miles or 1.2 million acres, and
is bordered on the west by Santa Barbara
County, on the north by Kern County, on the
South by the Pacific Ocean, and on the east
by Los Angeles County.
2.2.1. City Land Use
The land use in the City’s service areas
includes single-family residential, multifamily residential, commercia/institutional, industrial, military, visitor, and retail.
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Table 2.1 Current Land Use & Economic Statistics for Ventura County Land: Total
Item Ventura County
Land Area (sq. miles) 2,208
Land Area (acres) 1.4 million
Land: Developed
Item Ventura County
Developed Land 121,000 acres
Population
Item Ventura County
Population 830,851
Housing
Item Ventura County
Total Housing Units 302,075
Median Home Price $822,700
Owner Occupancy Rate 64.6%
Economy
Item Ventura County
Employed (16yrs +) 63.7%
Median Household Income $109,797
Percent in Poverty 9.5%
Economic: Production/Revenue
Item Ventura County
Manufacturing N/A
Agriculture/Crops N/A
Retail & Wholesale Sales N/A
*N/A: Data not Available
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2.3. CLIMATE
The climate in the Port Hueneme/Channel
Islands Harbor area is characterized by mild
temperatures year-round with dry, warm
summers and wet, cool winters. The Port
Hueneme/Channel Islands Harbor area
experiences minimal rainfall, about 13.7
inches per year. The average temperature is
60.8°F, with average highs and lows of 68.5F
and 54.6°F. Table 2.2 lists the historical
average rainfall for the Agency:
Table 2.2 Historical Climate (1998-2026)
Oxnard WFO, California (046572)
(www.wrcc.dri.edu)
Month Average Rainfall (in)
Jan 2.85
Feb 3.09
Mar 2.22
Apr 0.73
May 0.31
Jun 0.03
Jul 0.02
Aug 0.06
Sep 0.08
Oct 0.53
Nov 1.15
Dec 2.63
Annual: 13.7
The Agency has not participated in or
conducted an official climate change
vulnerability or risk assessment for the
existing water service area. However,
climate change considerations for the
Agency’s groundwater supply were
incorporated into the Groundwater
Sustainability Plan (GSP) for the Oxnard
Subbasin. The Oxnard Subbasin GSP
anticipates increased temperatures by 1 ˚C to
3 ˚C, increased evaporation rates, decrease in
annual precipitation by 2 to 5%, and increase
in extreme precipitation events due to global
climate change. Additionally, the Oxnard
Subbasin GSP modeled future climate
change conditions for the Oxnard Subbasin.
The results are included in Appendix B
Recent ETo and rainfall for the Agency is
listed in Table 2.3:
Table 2.3 Recent Climate (2025)
CIMIS Station 152 (Camarillo – Central Coast
Valleys)
(cimis.water.ca.gov)
Month Rainfall (in) ETo (in)
Jan (2025) 0.24 3.41
Feb (2025) 3.09 2.67
Mar (2025) 1.55 3.47
Apr (2025) 0.21 4.47
May (2025) 0.62 5.24
Jun (2025) 0.13 5.46
Jul (2025) 0.11 6.18
Aug (2025) 0.17 5.98
Sep (2025) 0.44 4.18
Oct (2025) 0.92 3.91
Nov (2025) 6.02 1.91
Dec (2025) 4.47 2.34
Totals: 18.0 49.2
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2.3.1. Climate Change
The DWR Guidebook requires water
suppliers to include a discussion of climate
change in their UWMPs, specifically with
regard to Drought Risk Assessments (DRA).
Section 7: of this UWMP provides an
overview of droughts.
The rise of anthropogenic activities
producing carbon dioxide in the world has
changed the earth’s climate by emitting
greenhouse gasses responsible for global
warming. This has resulted in extreme
weather events occurring more frequently.
The severity and frequency of climate
change impacts on temperature and
precipitation patterns can be difficult to
forecast due to dramatic shifts in weather
patterns as a result of increased
concentrations of carbon dioxide in the
atmosphere. While the precise timing,
severity, and regional impacts of these
temperature and precipitation changes are
uncertain, climate researchers have
identified several important issues of
concern for water planners in California.
The climate change impacts of concern
include increases in temperature,
precipitation pattern changes. and see-level
rise. More winter precipitation falling as rain
than snow leads to reduced snowpack water
storage, reduced long term soil humidity,
reduced groundwater and downstream
flows, and reduced imported water
deliveries. Higher temperatures alter
evapotranspiration rates and growing
seasons become longer. Precipitation
pattern changes leads to increase flooding
from intense storms. Although the extent of
these changes is uncertain, the Agency is
already planning ahead to ensure long
lasting reliability of its source for their
customers.
The California Natural Resources Agency
released a draft of the 2024 California
Climate Adaptation Strategy (Strategy),
which builds on the successes and lessons
learned since the first iteration in 2009 and
the California Adaptive Planning Guide
issued in 2012. It also integrates and
connects key elements of the latest specific
State of California action plans, such as the
Extreme Heat Action Plan, Water Supply
Strategy, Climate Smart Lands Strategy,
Wildfire and Forest Resilience Action Plan,
and Climate Action Plan for Transportation
Infrastructure. Key elements of the
approach:
01.Set updated, strategic direction and
identify outcome-based priorities:
The Strategy links together the state’s
existing, planned, and resourced climate
adaptation efforts, showing how they fit
together to achieve broad climate resilience
priorities. The Strategy also specifies needed
actions, with timeframes and metrics, to
drive progress and enable accountability.
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02.Unify efforts across all sectors and
regions:
The Strategy is organized around outcomebased priorities, rather than individual sectors, enabling a coordinated, integrated
approach to building climate resilience. This
approach recognizes how climate
adaptation is implemented on the ground,
and reflects our commitment to integrating
climate resilience into the work of all state
agencies. The priorities have been
developed based on input from Californians
across all regions of the state and in
consultation with California Native American
tribes.
03. Help all Californians understand and
contribute to California’s climate resilience:
The 2024 Strategy updates the interactive
website that serves as a hub for state climate
resilience action. This website will continue
to be updated to enable easier navigation, to
follow the state’s progress and to find
adaptation information and resources easily.
2.3.2. Vulnerability Screening
The Agency has not participated in or
conducted an official climate change
vulnerability or risk assessment for the
existing water service area. However,
climate change considerations for the
Agency’s groundwater supply were
incorporated into the Groundwater
Sustainability Plan (GSP) for the Oxnard
Subbasin. The Oxnard Subbasin GSP
anticipated increased temperatures by 1 ˚C to
3 ˚C , increased evaporation rates, decrease
in annual precipitation by 2 to 5%, and
increase in extreme precipitation events due
to global climate change. Additionally, the
Oxnard Subbasin GSP modeled future
climate change conditions for the Oxnard
Subbasin. The results are included in
Appendix B.
Preliminary climate change vulnerability
screening from CMWD and UCWD are
provided in each supplier’s 2020 UWMP,
including impacts from extreme heat, water
quality, sea level rise, flooding, and wildfire.
2.3.3. Port of Hueneme PACED initiative
The Port Action, Climate, and Environmental
Development (PACED) program at the Port
of Hueneme is a sustainability and
modernization initiative focused on reducing
greenhouse gas emissions, improving
operational efficiency, and enhancing
environmental stewardship across port
operations.
Relevant elements of PACED include; the
expansion of shore power systems allowing
vessels to connect to the electrical grid while
docked, reducing engine emissions, The
conversion to electric cargo handling
equipment, procurement of zero emission
trucks and service vehicles and the
installation of electrical infrastructure such
as high-capacity charging systems. These
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29 URBAN WATER MANAGEMENT PLAN 2025
improvements reduce localized air pollution
and benefit regional water quality by
reducing pollutants contaminating coastal
waters and stormwater systems.
2.4. POPULATION
2.4.1. Service Area Population
Current population estimates were obtained
from the City’s Electronic Annual Report
(EAR). Table 2.4 provides a summary of the
current population projections the City’s
service area.
Table 2.4 City of Port Hueneme Population
Year Population
2025 21,407
2.4.2. City Population Forecasts
A growth rate of 0.61%, which would be
consistent with the annual average
population growth rate established by
Southern California Association of
Governments (SCAG), was used to estimate
the future populations through 2050. Table
2.5 shows the current and projected
population for the next 25 years.
Table 2.5 City of Port Hueneme Water
Service Area Projected Population
Year Population
2030 22,060
2035 22,713
2040 23,366
2045 24,019
2050 24,672
2.4.3. Social, Economic, and Demographic
Factors
The Agency has a fixed allocation of capacity
in UWCD’s Oxnard-Hueneme Pipeline
system (O-H System) which has been
established by the Water Supply Agreement
for Delivery of Water through the OxnardHueneme Pipeline. This agreement currently has an expiration date of 2035. UWCD has a
fixed allocation of groundwater it may draw
from its wells to supply the O-H System,
which is determined by the Fox Canyon
Groundwater Management Agency
(FCGMA). Changes in population or other
demographic features do not alter the
capacity allocation and do not directly affect
water management and planning for the OH System. The following information was obtained from the US Census Bureau to
describe the demographics of the City of
Port Hueneme:
• The population includes 51.4% male
and 48.6% female with 22.7% of the
population under the age of 18
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• Approximately 60.7% of the
population is Hispanic or Latino
• The median household income was
identified to be $64,126
2.5. WATER SYSTEM
A basic overview of the City’s water system
is provided herein. More information on the
City’s water sources, water treatment, and
water demands can be found in Sections 3
through 6 of this report. As this report is
more of a water-resource-management
planning document, it does not provide a
great degree of technical or engineering
detail on water system components.
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Figure 2.1 City of Port Hueneme – Location Map
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Figure 2.2 City of Port Hueneme - Service Area Map
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3. 3.1. INTRODUCTION
This Section describes the current and
projected water resources available to City
over a 25-year period (from 2026 through
2050). This Section also provides background
information on the overall water supplies
available to PHWA’s, as they are the City’s
sole provider. PHWA’s water supplies consist
of groundwater pumped from the Oxnard
Basin and imported water from the Bay
Delta and the Colorado River. PHWA’s water
is obtained via agreements with regional
water suppliers. As noted in Section 2,
PHWA was formed as a joint-powers
authority to better manage, treat, and
provide reliable, high-quality urban water
supplies for the sub-region. This included
acquisition of real property for construction
of groundwater treatment plant, and
procurement of water rights with regional
water suppliers. During its formation in
1994, it was anticipated that PHWA would
enter into agreements for water rights in the
future. PHWA subsequently secured water
rights agreements with the United Water
Conservation District (UWCD) for local
groundwater supplies, and with the
Calleguas Municipal Water District (CMWD)
for imported water rights.
3.2. IMPORTED WATER SOURCES
PHWA’s imported water is obtained from
CMWD, which is obtained via the
Metropolitan Water District (MWD). MWD
treats the water at the Joseph Jensen
Filtration Facility in Granada Hills. CMWD
3 Section 3:
Water Sources and
Supplies
PHWA’s Brackish
Water Reclamation
Demonstration
Facility (BWRDF) is
the primary source
of water for the City.
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Figure 3.1: CMWD’s Lake Bard
receives the water via MWD’s West Valley
Feeder and CMWD’s mile-long tunnel
through the Santa Susana Mountains. The
water is then stored at Lake Bard or sent to
CMWD’s Springville Reservoir near the City
of Camarillo.
Due to the location of the Jensen Plant,
imported water from CMWD primarily
consists of water from the Bay Delta, via the
State Water Project (SWP). During drought
conditions, MWD blends the SWP water with
water from the Colorado River Aqueduct
before sending it to CMWD. Figures 3.2 &
3.3 display MWD’s imported supply system
for normal and drought conditions.
3.2.1 Bay Delta Imported Water
The Bay Delta water system provides
Southern California agencies with over 1
million acre-feet (MAF) of water annually.
The “Delta” is located at the confluence of
the Sacramento and San Joaquin Rivers east
of the San Francisco Bay and is the West
Coast's largest estuary. The Delta supplies
Southern California with over 1 MAF of
water annually which has been significantly
reduced in recent years.
The Delta is often considered the nexus of
California's statewide water system. About
half the total river flow in the State passes
through this region, from which water is
exported to the San Joaquin Valley, Southern
California and portions of the Bay area to
supply some 1,130,000 acres of farmland
and 23 million people in central and
Southern California. The Delta provides an
estimated 7 million acre-feet (MAF) of water
per year, of which about 100,000 AF are
exported to the San Francisco Bay Area, 1.7
MAF are used locally, and over 5 MAF are
exported to the San Joaquin Valley, coastal
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Figure 3.2 MWD Supply Sources in Normal Years
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Figure 3.3 MWD Supply Sources in Drought Years
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Figure 3.4: State Water Project
Central and Southern California via the State
Water Project.
3.2.2 State Water Project (Aqueduct)
The California State Water Project is a water
storage and delivery system of reservoirs,
aqueducts, power-plants and pumping
plants. Its main purpose is to store water and
distribute it to 29 urban and agricultural
water suppliers in Northern California, the
San Francisco Bay Area, the San Joaquin
Valley, the Central Coast, and Southern
California. Of the contracted water supply,
70 percent goes to urban users and 30
percent goes to agriculture.
In 1947, the California State Legislature
funded a water resources investigation that
led to the development of the SWP. This
investigation resulted in the publication of
the California Water Plan, which presented
preliminary plans to meet the State’s
ultimate water needs, including those facility
works required for transferring surplus
water from northern California to southern
California. Financing for the construction of
SWP facilities was authorized in 1959, when
the State Legislature enacted the California
Water Resources Development Act (known
as the Burns-Porter Act). The Burns-Porter
Act, formally known as the California Water
Resources Development Bond Act, was placed
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on the November 1960 ballot. Also known as
Proposition One, the initial works included
Oroville Dam and Lake Oroville, B.F. Sisk Dam
(also known as San Luis Dam) and San Luis
Reservoir, the South Bay Aqueduct, the
North Bay Aqueduct, and the California
Aqueduct. Construction on the Oroville site
actually began even before the passage of
the Burns-Porter Act. A $25 million
emergency appropriation was passed in
1957 after a record late 1955-early 1956
flood, which devastated Northern and
Central California. Statewide, 64 deaths
were recorded, most in Sutter County and
Yuba City, and more than $200 million of
property damage.
The first SWP water deliveries were made in
1962, two years after construction began
The State of California Department of Water
Resources (DWR) and
MWD signed the first
water supply contract
in 1960. Today 29
agencies have longterm water supply
contracts with DWR.
The service areas of these long-term water
supply contractors vary widely in size,
location, climate, and population. The
contractors’ uses for SWP water also differ.
In the San Joaquin Valley, SWP water is used
primarily for agriculture. In Southern
California, SWP water is used primarily for
urban and industrial needs.
Today, the SWP includes 34 storage facilities,
reservoirs and lakes; 20 pumping plants; 4
pumping-generating plants; 5 hydroelectric
power plants; and about 701 miles of open
canals and pipelines. The SWP is owned and
managed by the Department of Water
Resources (DWR).
3.2.1 Colorado River Imported Water
The Colorado River begins as far north as
Wyoming, with multiple tributaries from
seven States feeding the Colorado River’s
branch system. The watershed of the
Colorado River encompasses 246,000 square
miles, which is the seventh largest in North
America. Most of the river’s water source is
produced during winter seasons, with snow
above 5,000 feet and rainfall at lower
elevations in the Rocky, Uinta, and Wind
River Mountains. The snowmelt and rainfall
occurring in and nearby these mountains are
the primary origination or source point of
the Colorado River’s water.
The right to water from the Colorado River is
governed by numerous compacts, state and
federal laws, court decisions and decrees,
contracts, and regulatory guidelines
collectively known as the "Law of the River."
These documents apportion the water and
regulate the use and management of the
Colorado River among the seven basin states
and Mexico.
DWR allocates
water to 29 SWP
contractors on an
annual basis,
including MWD.
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MWD competes with several agricultural
water agencies in California for unused
water rights to the Colorado River. Although
California's allocation has been established
at 4.4 MAF annually, MWD's allotment
stands at 550,000 AFY with additional
amounts increasing MWD's allotment to
842,000 AFY if there is any unused water
from the agricultural agencies.
MWD recognizes that competition from
other states and other agencies within
California has decreased the CRA's supply
reliability. In 2003, the Quantification
Settlement Agreement (QSA) facilitated the
transfer of water from agricultural agencies
to urban uses. This historic agreement
provides California the means to implement
transfers and supply programs, which will
allow California to live within the State's 4.4
MAF basic annual apportionment of
Colorado River water.
Section 7 provides further details regarding
the Colorado River’s reliability since 2020,
including recent water levels in Lakes Mead
and Powell.
3.2.1 CMWD Service Area
CMWD’s service area is shown in Figure 3.6.
Facilities of CMWD include an open
reservoir, water treatment plant,
transmission lines, closed reservoirs, and
pump stations. Water enters Ventura
County and the CMWD system through the
Santa Susana Tunnel via MWD's West Valley
Feeders. Upon entering the CMWD system,
the water flows by gravity to Lake Bard,
located between the cities of Simi Valley and
Thousand Oaks, for storage or is distributed
throughout the system. Lake Bard has a total
storage capacity of 10,500 acre-feet (AF) and
is used for peaking and emergency use only.
In 1995, CMWD completed the 50 million
gallon per day (MGD) Lake Bard Water
Filtration Plant. Water from Lake Bard serves
mainly the lower pressure zones (Moorpark,
Camarillo, and Oxnard) but can be pumped
to higher zones during emergencies.
Figure 3.5 CMWD’s Springville Reservoir
The CMWD distribution system consists of
more than 130 miles of pipelines and seven
reservoirs totaling approximately 59 MG.
Ranging in size from 35 to 39 inches, the
Oxnard-Santa Rosa Feeder delivers water to
Camarillo and Oxnard. The 18 MG Springville
Reservoir, located on the west end of the
Camarillo Hills at the terminus of the
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Figure 3.6 CMWD’s Service Area
Springville
Reservoir
Lake
Bard
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Oxnard-Santa Rosa Feeder, is the largest
CMWD reservoir. This reservoir serves
PHWA and the City of Oxnard by gravity
through the Oxnard Conduit.
3.3 IMPORTED WATER PURCHASES
Table 3.1 presents City’s recent imported
water purchases years 2021 to 2025 and
compares them to years 2016 to 2020.
Table 3.1 Imported Water Supply
Year
Purchases
(AF)
2021 1,908
2022 1,860
2023 1,648
2024 1,683
2025 1,711
Average: 1,762
2016 – 2020 Avg.
(2020 UWMP)
2,464
Because the imported water from PHWA
comes from two sources, they are further
described in this section. Received water
from CMWD is already treated, it is blended
with the treated groundwater supply (see
Section 3.4) before final distribution
3.4 GROUNDWATER
The majority of PHWA’s water supply is
provided by groundwater through an
agreement with UCWD. In 1996, PHWA
negotiated a new 40-year supply agreement
with UWCD to improve groundwater quality
by treatment at the Brackish Water
Demonstration Reclamation Facility
(BWRDF), shown in Figure 3.7. The BWRDF is
a PHWA-operated membrane filtration
facility, with a capacity of 4.0 MGD of finished
potable water.
Much of Ventura County’s groundwater
supplies are located in the Oxnard Plain area
and are subject to the regulations of the Fox
Canyon Groundwater Management Agency.
The FCGMA determines the fixed allocations
UWCD may draw from the Oxnard-Hueneme
(O-H) Pipeline system. PHWA has an
agreement currently in place with UWCD for
water delivery until 2035. Groundwater for
the O-H Pipeline is extracted from the Oxnard
Subbasin. As described in UWCD’s 2015
UWMP, the O-H system includes 12
groundwater wells, the El Rio Treatment
Plant, and a transmission pipeline to serve the
City of Oxnard, PHWA and several mutual
water companies. Additional infrastructure
includes eight miles of transmission line with
an additional four miles added by the Mugu
Lateral. The O-H system serves an area of
approximately 43 square miles.
In addition to groundwater provided by
UWCD, PHWA can also extract groundwater
from the Pleasant Valley groundwater basins
(PVB). The current Oxnard and Pleasant
Valley (OPV) basins groundwater extraction
allocation ordinance was adopted by FCGMA
in October 2019 and became operative
October 2020.
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Figure 3.7: PHWA’s Brackish Water Reclamation Demonstration Facility (BWRDF)
3.4.1 Oxnard Plain Groundwater Basin
Groundwater for the O-H Pipeline is extracted
from the Oxnard Plain Groundwater Basin, a
subbasin of the Santa Clara River Valley
Groundwater Basin (Groundwater Basin
Number 4-004.02). The Oxnard Plain
Groundwater Basin contains five primary
aquifers that are separated by layers of clay
strata. The Basin is generally categorized into
three parts: the Oxnard Forebay, the Upper
Aquifer System (UAS), also known as the
Oxnard Aquifer, is composed of the Oxnard
and Mugu aquifers. The Lower Aquifer
System (LAS), also known as the Fox Canyon
Aquifer, is composed of the Hueneme, Fox
Canyon and Grimes Canyon aquifers.
The Oxnard Subbasin adjoins the Pleasant
Valley Basin (PVB) (Groundwater Basin
Number 4-006). Similar to the Oxnard
Subbasin, the PVB is commonly grouped into
an upper and lower aquifer system. The LAS
is composed of the Upper San Pedro
Formation, Fox Canyon aquifer, and Grimes
Canyon. The UAS is composed of the Oxnard
and Mugu aquifers.
3.4.2 Pleasant Valley Groundwater Basin
PHWA has an extraction allocation from the
Pleasant Valley Basin under the current
Oxnard and Pleasant Valley (OPV) basins
extraction ordinance.
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Figure 3.8: Oxnard Basin Recharge Ponds
3.4.3 Fox Canyon Groundwater Management
Agency (FCGMA)
The Fox Canyon Groundwater Management
Agency (FCGMA) was established in Ventura
County by State Assembly Bill No. 2995 of the
State Legislature in 1982 for the preservation
of the groundwater resources within the
territory of FCGMA. Historically, the safe yield
estimate for the FCGMA area as a whole (all
groundwater basins in FCGMA combined)
was 120,000 AFY (per 1985 Groundwater
Management Plan [GMP]). Per the 2007
update to the GMP, the safe yield estimate
for FCGMA as a whole was reduced to
100,000 AFY. More recently, FCGMA
prepared the Groundwater Sustainability
Plan for the Oxnard Subbasin (December
2019) and determined the subbasin
sustainable yield for the UAS to be
approximately 32,000 AFY ± 4,100 to 6,000
AFY and for the LAS to be 7,000 ± 2,300 to
3,600 AFY. FCGMA also prepared the PVB’s
Groundwater Sustainability Plan (March
2021) and determined the total water
available reported to be 30,011 AF.
In response to the ongoing drought, FCGMA
adopted Emergency Ordinance E on April 11,
2014, which required groundwater users to
reduce their extractions or pay significant
surcharges. The current tiered surcharges are
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prescribed in Resolution 2020-07.
Agricultural, municipal and industrial well
operators were to reduce pumping by 20
percent from the average pumping between
2003 and 2012. Emergency Ordinance E is to
be reviewed every eighteen months, unless
superseded or rescinded by Board action, or
a finding by the Board that the drought no
longer exists. Emergency Ordinance E can be
found in Appendix C. The allocation systems
specified in Article 2 of Ordinance E have
been replaced in the Oxnard Subbasin and
Pleasant Valley Basin by a new allocation
system that went into effect October 1, 2020.
Localized saline intrusion was observed in the
1930s and 1940s along the coast near Port
Hueneme as groundwater pumping reduced
groundwater levels induced intrusion and
increased chloride levels. Within 20 years,
saline intrusion had extended 3 miles inland.
In some affected wells, chloride
concentrations reached 20,000 mg/L. By the
late 1950s, groundwater levels in the Lower
Aquifer System dropped below sea level.
Saline intrusion primarily occurred at the
Hueneme Submarine Canyon and Mugu
Submarine Canyon.
In 2015, the State Department of Water
Resources listed the Oxnard Subbasin as
being in a state of critical overdraft. The
Oxnard Subbasin GSP determined sustainable
yield by evaluating undesirable results, using
historical conditions, including seawater
intrusion management, reported and
projected groundwater extractions, and past
and future surface water supplies. Section
2.4.3.4 of the Oxnard Subbasin GSP describes
the groundwater modeling scenarios used to
determine sustainable yields and is included
in Appendix B.
3.4.4 United Water Conservation District
As described in PHWA’s Sanitary Survey,
UWCD obtains water from twelve (12) wells
located in El Rio Groundwater Recharge
Basins. Surface water from the Santa Clara
River is used to fill the basins. The major
tributaries of the Santa Clara River are the
Piru, Sespe, and Santa Paula Creeks in
Ventura County, as well as the Castaic and
San Francisquito Creeks in Los Angeles
County. UWCD provides natural soil
filtration for water diverted from the Santa
Clara River via the El Rio Groundwater
Recharge Basins. Blending treatment is
provided to those wells that have high
nitrate concentrations. Free chlorine is used
for disinfection after which chloramines are
used to maintain chlorine in the distribution
system. PHWA maintains an emergency
connection to UWCD and the intertie is
located on Pleasant Valley Road. Water from
this connection would bypass treatment and
directly feed into the distribution system.
Starting in late 1998, PHWA began providing
its purveyors with water from UWCD (80
percent of supply). Since that time, UWCD
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Figure 3.5: UCWD El Rio Wellfield
been able to provide a continuous supply of
municipal water to meet the water demands
without any curtailment of supply.
UWCD diverts water from the Santa Clara
River at the Vern Freeman Diversion Dam,
northwest of Saticoy, and delivers a portion
of the water to the El Rio Spreading Grounds.
UWCD’s El Rio Spreading Grounds are
located in the northeast portion of the
Oxnard Plain. Water is used to recharge the
underlying Montalvo Groundwater
Basin/Forebay. The El Rio Wellfield, located
at the Spreading Grounds, has a total of
twelve wells. Of the twelve wells in the El Rio
Wellfield, nine wells extract water from the
Oxnard Aquifer, also known as the Upper
Aquifer System (UAS), and three wells
extract water from the Fox Canyon Aquifer,
also known as the Lower Aquifer System
(LAS).
3.4.5 Groundwater Production
According to UWCD’s 2020 UWMP Public
Draft, the O-H wells produced on average
11,669 AFY over the past five years, not
including pumping involved in temporary
allocation transfers from 2019 and 2020. In
2020, the O-H wells extracted a total of
13,974 AF from the Oxnard Plain. Because
PHWA receives its groundwater supply from
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UWCD, it does not directly pump
groundwater, as shown in PHWA’s 2025
UWMP.
3.5 PROJECTED WATER SUPPLIES
As discussed previously, PHWA’s existing
water supply sources are provided by CMWD
and UWCD. As determined by ten years of
water demand data detailed in the 2020
PHWA Sanitary Survey, the maximum daily
demand (MDD) occurred in 2010 and was
estimated to be approximately 8 MGD. The
Agency has a source capacity of 15 MGD,
meaning it is considered to have adequate
water supply.
3.5.1 Planned/Projected Supply Projects
PHWA’s existing allocation UWCD is
expected to decreased over the next 20
years, as shown in Table 6-7. PHWA’s current
source of water from CMWD is limited by the
adoption of CMWD’s Resolution No. 1865
which implements MWD’s Water Supply
Allocation Plan. With the current SWP
allocation to MWD of 60 percent, the are no
delivery limitations from CMWD as of July 1,
2016. It is anticipated that PHWA will
continue to utilize its current sources of
water supply from UWCD and CMWD. Both
agencies are exploring future projects to
improve water supply reliability.
3.6 RELIABILITY OF SUPPLIES
The reliability of water supplies with regard
to regular threats to reliability, including
droughts and competition for supplies, is
discussed in detail in Section 7:. The reliability
of supplies with regard to irregular threats to
reliability, including catastrophic events or
emergencies (earthquake/power outage) is
discussed in Section 8:.
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4 4.5 OVERVIEW
Recycled water is defined as domestic
wastewater purified through primary,
secondary, tertiary, or advanced treatment,
and repurposed for beneficial use. Under
Title 22 regulations in California, disinfected
tertiary recycled water is acceptable for a
variety of non-potable water purposes such
as irrigation, groundwater recharge, and
industrial processes. In Southern California,
approximately 500,00 acre-feet (AF) of
wastewater is recycled annually, of which
roughly 8,000 AF is recycled in the OxnardVentura region. Recycled water is considered a reliable and drought-proof
water source that will reduce reliance on
imported water. Due to improvements in
treatment costs and changes to State codes
which permit more recycled water use
opportunities, recycled water demands are
projected to increase. As part of its founding
and current operating mission, PHWA
promotes the use of recycled water, and
continues to investigate the recycled water
opportunities on behalf of its member
agencies.
This Section describes the existing and
future recycled water opportunities
available to PHWA and its member agencies.
The Section also includes a tabulation of
recent recycled water use, and estimates of
potential recycled water supply and recycled
water demand from 2026 through 2050 in
five-year increments.
4 Section 4:
Recycled Water
Opportunities
Wastewater generated
in PHWA’s service area
is recycled at the City of
Oxnard’s Advanced
Water Purification
Facility (AWPF)
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4.6 WASTEWATER COLLECTION SYSTEM
PHWA does not operate a wastewater
collection (sewer) system. Wastewater
service within PHWA’s service area is
provided by either the City of Port Hueneme
Wastewater Division, the Channel Islands
Beach Community Services District (CIBCSD),
or the City of Oxnard (for the Naval Base
Ventura County (NBVC) – Port Mugu. The
separate wastewater systems then transmit
flows to the City of Oxnard Wastewater
Division, which collects and treats the
wastewater at the Oxnard Wastewater
Treatment Plant (OWTP). Figure 4.1
illustrates the wastewater collection and
treatment process for the region. The OWTP
receives and treats wastewater for the
following agencies/communities:
• City of Oxnard
• City of Port Hueneme
• Naval Base Ventura County (NBVC)
Port Hueneme & Port Mugu
• Channel Islands Beach Community
Services District (CIBCSD)
• Unincorporated Ventura County
In mid-2024, the City of Oxnard changed the
name of the OWTP to the Water Resource
Recovery Facility (WRRF), which coincides
with the City’s Waste Discharge permit by
the California Regional Water Quality
Control Board, and a pending, $46 million
improvement project at the WRRF, which
will begin in 2026. The WRRF utilizes a multistage preliminary, primary, and secondary treatment process to process up to 31.7
million gallons per day (MGD). A portion of
this secondary effluent is then diverted to
the Advanced Water Purification Facility
(AWPF), or tertiary-level recycling. The
AWPF is located adjacent to the WRRF, as
indicated in Figure 4.2.
4.2.1 Wastewater Flows
Municipal wastewater is generated in
PHWA’s service area from a combination of
residential, commercial, and industrial
sources. Wastewater generation is mostly
proportional to the potable water used
within the WRRF service area. Typically, it is
75% of potable water demand. The WRRF
has an average daily flow of 16 MG, which
equates to 75 gallons per capita (person) per
day (gpcd) for the WRRF’s service area of
210,000 persons. Table 4.1 below lists the
total annual wastewater flows collected and
treated by the WRRF in acre-fee (AF):
Table 4.1
Wastewater Flows Collected at
City of Oxnard WRRF
Year
Wastewater
(AF)
2025 18,000
Given the current daily flows of 16 MGD, the
WRRF currently operates at about 50%
capacity. Approximately 6.25 MGD (30-40%)
of the treated wastewater proceeds to the
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Sewer Laterals
Serving individual properties, the
sewer laterals collect the flows from
underground plumbing.
Collector Sewers
Collector sewers or sewer main lines,
collect the flows from the sewer
laterals and carry the flows by gravity
to downstream sewers.
Lift Stations
Sewer Lift Stations pump wastewater
collected at various points within the
individual wastewater systems.
Force Mains
Sewer Lift Stations pump wastewater
into pressurized force mains and
discharge flows to the Oxnard WRRF
or to larger, "trunk" gravity sewers.
"Trunk" Sewers
Larger sewers collect wastewater
from the force mains, or from
upstream gravity sewers, and carry
the flows to the City of Oxnard WRRF.
Treatment/Disinfection
The City of Oxnard WRRF treats all
flows by filtering out solids and by
providing aeration. Liquid flows
remaining receive disinfection as the
last step prior to discharge.
Groundwater Recharge
Treated wastewater is discharged into the Oxnard Basin
via injection wells.
OR
Recycling & Re-Use
Agriculture, parks, industry, & recreation fields.
Figure 4.1: Wastewater
Collection & Treatment System
within PHWA’s Service Area
(Not Owned or Maintained by PHWA)
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Figure 4.2: City of Oxnard the Water Resource Recovery Facility (WRRF) and Advanced Water Purification Facility (AWPF)
Injection
Wells
AWPF
WRRF
PHWA
Brackish Water
Treatment Plant
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AWPF. This portion undergoes further
purification for various recycled water
reuses, while the remaining effluent is safely
discharged into the Pacific Ocean.
4.2.2 Projected Wastewater Flows
The areas served by the Oxnard WRRF
(including PHWA’s service area) are
currently either built-out or restricted to
specific land-use types. Unless or until
agricultural land is converted to urban use,
development and population are expected
to increase only mildly within the WRRF
service area. For the sake of this UWMP
planning period (2050), it is estimated that
WRRF service area population will increase
about one (1) percent annually. This results
in roughly 270,000 persons served by the
WRRF by 2050, or a total growth of about
60,000 persons. Based on current
wastewater generation rates of 75 gpcd, this
would increase wastewater flows by 4.5
MGD in 2050. Prior to
this time, however,
changes to the State
water code, including
those recently brought
about by Assembly Bill
1668 and Senate Bills
606 & 1157, will result
in an indoor water use of under 50 gpcd.
Consequently, population growth will be
offset by water use efficiency. Table 4.2
shows the projected wastewater flows for
the WRRF, which are based on the WRRF
service area population and 50 gallons of
daily indoor water use:
Table 4.2
Projected Wastewater Flows Collected at City
of Oxnard WRRF
Year
Wastewater
(AF)
2030 12,500
2035 13,100
2040 13,800
2045 14,500
2050 15,200
As indicated by Table 4.2 above, projected
wastewater flows treated at the WRRF are
expected to be less than the current
wastewater flows (18,000 AFY). Thus, the
current WRRF capacity (31.7 MGD) is
sufficient for the needs of the region.
Therefore, the pending $46 million
improvements at the WRRF are focused on
rehabilitation, maintenance, and reliability
rather than capacity expansion.
4.7 RECYCLED WATER
In 1999, the City of Oxnard developed a
water recycling program based in part by a
known as the Groundwater Recovery
Enhancement and Treatment (GREAT)
Program. The GREAT program was a
collective effort from the following agencies:
• Calleguas Municipal Water District
(CMWD)
Indoor water use
efficiency will
offset increases in
wastewater
generation from
population growth
in the region.
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• United Water Conservation District
(UWCD)
• Fox Canyon Groundwater
Management Agency (FCGMA)
The cornerstone of the GREAT Program is
the regional Advanced Water Purification
Facility (AWPF), which was designed to
purify secondary-treated wastewater flows
from the WRRF in order to produce recycled
water for beneficial use. Construction of the
AWPF began in 2009 and was completed in
2012, for a total construction cost of about
$56 million.
One of the primary uses of recycled water
from the AWPF is groundwater recharge via
a network of injection wells within the
region. As part of the AWPF construction,
the City of Oxnard and UWCD constructed
series of injection wells immediately north of
the AWPF, as shown in Figure 4.2. Delivery
of recycled water for other beneficial uses,
including agricultural
irrigation, was rolled
out between 2015-
2016, once recycled
water pipelines were
constructed. The initial
AWPF deliveries began
in 2015 for the City of
Oxnard’s River Ridge
Golf Club. Agricultural use of recycled water
began in 2016, with pipelines reaching
Pleasant Valley to the east. Figure 4.3 shows
the current extent of the AWPF recycled
water system, which also highlights the
recycled water pipeline network of the
United Water Conservation District (UWCD).
Recently, UWCD has been working with the
City of Oxnard and the Pleasant Valley
County Water District (PVCWD) to expand
recycled water use within the region, with
interconnection piping recently completed
in 2025. UWCD worked with the State Water
Board to receive funding from State and
Federal grants for construction of UWCD’s
interconnection piping, known as the
“Pumping Through Pipeline” (PTP) system.
UWCD’s PTP system enables recycled water
produced from the AWPF to reach additional
agricultural users.
The AWPF has a current capacity of 6.25
MGD, or 7,000 AF per year, which coincides
with the effluent from the WRRF sent to the
AWPF. The City of Oxnard anticipates an
expansion of the AWPF to 25 MGD, known
as the Phase II expansion. Once completed,
the expansion will
divert all flows from
the WRRF to the
AWPF, or 100% water
recycling for the
region. The timeframe
for the Phase II
expansion is not currently set, as the City of
Oxnard is currently focused on $46 million
upgrade to the WRRF, to address aging
infrastructure. Given the recent
The AWPF Phase II
Expansion will
achieve 100%
recycling of all
wastewater flows
for the region.
The AWPF
provides
groundwater
recharge for
UWCD’s wells
which supply
water from
PHWA.
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interconnection to PVCWD agricultural users
via the UWCD, it is likely that the City of
Oxnard will plan for the expansion of the
AWPF once construction of WRRF is
complete.
4.3.1 Recycled Water Use
The AWPF recycled water pipeline network
runs through the easterly portion of PHWA’s
service area. However, there are no current
recycled water connections for either PHWA
nor its member agencies. Therefore, no
recycled water is currently used by or within
PHWA’s service area, as indicated in Table
4.3 below:
Table 4.3
Recycled Water Use by PHWA
Years
Recycled Water Use
(AF)
2020 - 2025 0
As projected in PHWA’s 2020 UWMP, no
recycled water was produced or used in the
last five (5) years.
4.3.2 Projected Recycled Water Use
With the ongoing extension of the AWPF
recycled water pipeline system, the AWPF
capacity of 7,000 AFY will soon be realized by
existing or pending customers. Although the
Phase II expansion of the AWPF is not
currently set, it is likely that the Phase II
expansion will be completed prior to the end
of this UWMP planning period (2050).
However, unless or until connections are
made to AWPF’s recycled water pipeline
network, recycled water is not expected to
be used by or within PHWA’s service area, as
indicated by Table 4.4 below:
Table 4.4
Projected Recycled Water Use by PHWA
Years
Projected
Recycled Water Use
(AF)
2026 - 2050 0
It is important to note that, although
recycled water is not projected to be used,
PHWA benefits from indirect potable reuse
of recycled water from the AWPF. As
indicated by Figures 4.2 and 4.3,
groundwater recharge is provided by either
injection wells adjacent to the AWPF, or by
percolation ponds within UWCD’s El Rio
wellfield.
4.3.3 Planned Recycled Water Infrastructure
There are also no planned recycled water
improvements that are projected to be
constructed within PHWA’s service area
within this UWMP planning period (2050).
Construction of recycled water
infrastructure would be possible if the
funding for recycled water pipeline
infrastructure was covered by grant funding,
and an agreement was in place for the use of
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recycled water. PHWA can work with UWCD
and its member agencies, to fund and
construct recycled water infrastructure.
4.3.3 Potential Recycled Water Use
Once the timeframe for the Phase II AWPF
expansion is confirmed, PHWA can work
with its member agencies to identify
recycled water users. Typical recycled water
users include the following:
• Landscape Users (parks, sports fields)
• Commercial/Manufacturing Users
• Energy/Power Production
Within PHWA’s service area, there are
several municipal landscape customers such
as parks and schools. In addition, the NBVC
could also use recycled water for industrial
processes, although this is not likely, given
the volumes of recycled water required to
offset the cost of recycled water
infrastructure improvements. here would be
sufficient landscape irrigation customers
available to purchase recycled water. For the
sake of this UWMP planning period,
potential recycled water users are shown in
Figure 4.4.
4.4 ENCOURAGING AND OPTIMIZING
RECYCLED WATER USE
PHWA works closely with its member
agencies and neighboring jurisdictions to
expand recycled water usage in the region,
including UWCD and the City of Oxnard to
promote the use of recycled water for
agricultural uses. Once AWPF Phase II
expansion provides sufficient recycled water
capacity for municipal landscapes, PHWA
can also pursue funding for recycled water
distribution piping. Finally, through water
conservation, PHWA can reduce reliance on
imported water from CMWD, and benefit
further from indirect potable reuse of
recycled water from the AWPF.
Incentives can also be provided to potential
recycled water customers. This may include:
1) monitoring, enforcement, and training for
recycled water use, and (2) delivery of
recycled water at a reduced rate for an initial
period of time. The exact incentive method
would be developed as the implementation
of recycled water infrastructure progresses
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Figure 4.3 AWPF’s Recycled Water Network (UWCD Exhibit) Agenda Item No. 10 Page 61 of 142 CC Agenda 06-15-2026
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Figure 4.4: Potential Recycled Water Users in PHWA’s Service Area Hollywood
Beach
Elementary
NBVC
Port Hueneme
City of
Port Hueneme
City of
Port Hueneme
CIBCSD
AWPF
Bolker
Park Hueneme Bay
Rec. Center
Seabee
Golf Course
Softball
Field
Sunkist
Elementary
School
Pacific
Park
Dewar
Park
Walter B
Moranda
Park
Richard Bard
Elementary
School
Bubbling
Springs Park
Parkview
Elementary
School
AWPF
R.W. Pipeline
PHWA
Service Area
Focus
Area
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5 5.5 OVERVIEW
The quality of a natural body of water varies
over time and location, and these variables
must be recognized by water agencies.
During periods of intense rainfall,
contaminants can be washed into receiving
waters, although dilution of existing
contaminants may also occur. Conversely,
during a drought, the concentration of
existing contaminants may increase without
additional incoming flows. These principles
are true for both surface water and
groundwater. As groundwater levels
fluctuate, groundwater passes through
different layers of rock and sediment and
receives substances native to those strata.
Likewise, groundwater wells that have not
been utilized over periods of time can see
water quality issues resulting from stagnant
water. For these reasons, Port Hueneme
Water Agency (Agency) monitors its wells for
water quality as required by State and
Federal regulations.
This Section provides a general description
of the Agency’s water sources, water quality
monitoring and reporting, and water
treatment. A discussion of potential water
quality impacts on the reliability of supplies
is also provided.
5.6 WATER QUALITY STANDARDS
5.6.1 Federal Regulations
In 1974, Congress passed the Safe Drinking
Water Act (SDWA) in order to protect public
health by regulating the nation's municipal
5 Section 5:
Water Quality
PHWA provides
reverse-osmosis (RO)
treatment of brackish
groundwater from
UWCD at its BWRDF
treatment facility
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drinking water supply. As part of the SDWA,
powers were given to the Environmental
Protection Agency
(EPA) to regulate
drinking water. The
1996 amendment to
the SDWA required
monitoring of new
types of contaminants.
Since the 1996
amendment to the
SDWA, the EPA has identified over 90
contaminants in its National Primary
Drinking Water Regulations (NPDWR) or
“primary standards”). The main categories
that the EPA has identified include:
biological microorganisms, disinfectants,
disinfection byproducts, inorganic
chemicals, organic chemicals, and
radionuclides. As required by the SDWA,
water agencies must provide annual Water
Quality Reports to its customers.
5.6.2 State Regulations
Water quality regulations have changed
since the Safe Drinking Water Act in 1974.
Several state, regional and county agencies
have jurisdiction and responsibility for
monitoring water quality. The actual
regulations on water quality have also
changed over the years. This is the result of
the discovery of new contaminants,
changing understanding of the health effects
of previously known as well as new
contaminants, development of new
analytical technology, and the introduction
of new treatment technology. All water
purveyors are subject to drinking water
standards set by the EPA and the State
Water Resources Control Board (SWRCB).
The California Department of Public Health
(CDPH) previously oversaw the water quality
of the State's drinking water program and
the environmental lab
accreditation program.
As of July 2014, those
programs were
transferred to the
SWRCB. Under the
SWRCB, the Division of
Drinking Water (DDW)
regulates public drinking water systems,
including setting the maximum contaminant
levels (MCLs) and regulating the operation of
water systems. In addition to the SWRCB,
several regional and county agencies have
jurisdiction and responsibility for monitoring
water quality and contaminant sites.
5.6.3 State Drinking Water Standards
The State of California has established two
(2) main types of drinking water standards:
1. Maximum Contaminant Level (MCL)
2. Public Health Goal (PHG)
MCLs are the drinking water standards to be
met by public water systems. The levels set
by the State consider a contaminant’s health
risk, detectability, treatability, and costs of
As part of Federal
EPA standards,
water agencies are
required to
prepare annual
water quality
reports.
In 2014, the
State’s drinking
water program
was transferred
from the Health
Department to
SWRCB.
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treatment. MCLs are further broken down
into two (2) types:
1. Primary MCL – Health Related
2. Secondary MCL – Taste & Odor
Secondary MCLs are not federally
enforceable according to the most recent
SDWA amendments. However, they are
regulated by the State of California. DDW
publishes a list of Secondary MCLs, which
include Copper, Iron, and Zinc.
PHGs are established by the Office of
Environmental Health Hazard Assessment
(OEHHA). They are concentrations of
drinking water contaminants that pose no
significant health risk if consumed for a
lifetime, provided risk levels are not
exceeded. Public water systems sometimes
use PHGs to provide information about
drinking water contaminants in their annual
water quality reports. PHGs are not
regulatory standards. However, state law
requires the SWRCB to set drinking water
standards for chemical contaminants as
close to the corresponding PHG as is
economically and technologically feasible.
5.6.4 Hexavalent Chromium (Cr6)
As of the 2020 UWMP, California had
previously established a maximum
contaminant level (MCL) of 10 parts per
billion (ppb) for hexavalent chromium (Cr6),
which took effect on October 1, 2024. This
concentration can be described as one drop
in an Olympic-size swimming pool. Prior to
this, Cr6 was regulated under California's
total chromium MCL of 50-ppb. The Federal
Standard is currently set at 100-ppb. The
SWRCB is currently evaluating treatment
technologies and cost estimates for
Chromium-6 removal.
5.6.5 City Standards
To ensure quality of its water, the Agency
conducts sampling and testing of water on a
daily, weekly, and monthly basis. Testing is
performed at several locations of the
Agency’s distribution system, as well as at
the source (Agency wells). Results of the
water quality testing are posted annually to
the Agency’s website. The Agency’ 2024
Annual Water Quality Report can be found at
the following link:
ci.port-hueneme.ca.us/881/Port-HuenemeWater-Agency
The Annual Water Quality Reports
summarize water quality test results
performed by both the Agency and Calleguas
Municipal Water District (Calleguas). The
testing is conducted on several parameters,
including organic & inorganic chemicals,
bacteriological contaminants, pesticides &
herbicides, and radiological contaminants.
The Agency contracts with certified
laboratories to perform water quality
testing. The Agency’s Annual Water Quality
Reports (also known as “Consumer
Confidence Reports”) are filed with DDW
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and released to customers. The annual
reports identify regulated substances
(Primary MCLs), secondary substances
(Secondary MCLs), and unregulated
substances (PHGs). The Agency identifies all
detected substances in the annual reports.
5.7 QUALITY OF WATER SOURCES
The two main sources of the Agency’s water
supply are imported water from Calleguas
Municipal Water District (CMWD) and
United Water Conservation District (UWCD).
Since the majority of the districts water
comes from groundwater pumped by
UWCD, the quality of the district’s water
supply is closly related to the quality of the
ground water in the oxnard Basin.
CMWD water meets all primary and
secondary maximum contaminant levels.
UWCD’s water is very hard and regularly
exceeds secondary standards for sulfate and
total dissolved solids. The BWRDF treats
imported water and PHWA continuously
monitors chlorine residual, pH, and fluoride.
After treatment, the water consistently
meets all United States Environmental
Protection Agency (US EPA) and State Water
Resources Control Board (SWRCB) water
quality standards.
5.7.1 Imported Surface Water Quality
The water that PHWA purchases from
CMWD, which in turn purchases it from
MWD. MWD is responsible for providing
water of a high quality throughout its service
area. The water delivered by MWD is tested
both for currently regulated contaminants
and for additional contaminants of concern.
Over 300,000 water
quality tests are
conducted each year
to regulate the safety
of its water. MWD’s
supplies originate
primarily from the
CRA and from the
SWP. The two
sources, proportional to each year’s
availability of the source, is then treated and
delivered throughout MWD’s service area.
Figure 5.1 MWD’s Joseph Jensen Treatment
Plant Provides a Safe Supply of Water
MWD’s primary sources face individual
water quality issues of concern. The CRA
water source contains a higher level of total
dissolved solids (TDS) and a lower level of
organic material. The SWP contains a lower
TDS level while its level of organic materials
is much higher, lending
Salinity levels
often exceed
secondary drinking
water standards
and pose a
challenge for well
operations.
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Figure 5.2 El Rio Treatment Plant
to the formation of disinfection byproducts.
To remediate the CRA’s high level of salinity
and the SWP’s high level of organic
materials, MWD has been blending CRA
water with SWP supplies as well as
implementing updated treatment processes
to decrease the disinfection byproducts. In
addition, MWD engages in efforts to protect
its Colorado River supplies from threats of
uranium, perchlorate, and chromium VI
while also investigating the potential water
quality impact of emerging contaminants, Nnitrosodimethylamine (NDMA) and pharmaceuticals and personal care products
(PPCPs). MWD has assured its ability to
overcome the mentioned water quality
concerns through its protection of source
waters, implementation of renovated
treatment processes, and blending of its two
sources.
5.7.2 Imported Groundwater Quality
The Agency also receives imported
groundwater from UWCD. UWCD obtains
water from twelve wells located in El Rio
Groundwater Recharge Basins. Surface
water from the Santa Clara River is used to
fill the basins. The major tributaries of the
Santa Clara River are the Piru, Sespe, and
Santa Paula Creeks in Ventura County, as
well as the Castaic and San Francisquito
Creeks in Los Angeles County. UWCD
provides natural soil filtration for water
diverted from the Santa Clara River via the El
Rio Groundwater Recharge Basins. Blending
treatment is provided to those wells that
have high nitrate concentrations. Free
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chlorine is used for disinfection after which
chloramines are used to maintain chlorine in
the distribution system.
The water quality of the Oxnard Basin is high
in nitrates and high levels of TDS and
chloride can occur due to seawater
intrusion. While these contaminants are a
concern, within the past five years, none of
them have been detected at levels
exceeding the State Water Resources
Control Board's Division of Drinking Water
(DDW) maximum contaminant levels
(MCLs).
In addition to groundwater provided by
UWCD, if necisary the Agency can extract
groundwater from the Pleasant Valley
groundwater basins (PVB). The current
Oxnard and Pleasant Valley (OPV) basins
groundwater extraction allocation
ordinance was adopted by FCGMA in
October 2019 and became operative
October 2020.
5.8 IMPACTS OF WATER QUALITY
Water quality dictates the management
strategies a water supplier will implement,
including, but not limited to, the selection of
water sources, treatment alternatives,
blending options, and modifications to
existing treatment facilities. A direct result of
the degradation of a water source is the
need to install wellhead treatment before
consumption. That is, the poorer the quality
of the source water, the greater the need
(and cost) for treatment. This can also
decrease water supply reliability.
As a result of MWD's efforts, MWD's 2025
UWMP indicates that none of the water
quality challenges described will impact the
reliability of its supplies during the next 5
years. The Agency’s water system is and has
been in compliance with all DDW water
quality standards. Groundwater quality does
not impact water
supply at this time due
to the combination of
imported water and
blending prior to
delivery to customers.
5.8.1 Impacts of
Abandoned Wells
The presence of abandoned groundwater
wells represents a potential hazard to the
quality of the groundwater basin.
Abandoned and improperly destroyed wells
can act as conduits for contaminants to
reach drinking water supplies. It is vital for
the long-term protection of the basin that
abandoned wells be located and destroyed.
While it is the landowner’s responsibility to
destroy an abandoned well, local water
agencies should be proactive about making
sure that abandoned wells are in fact
destroyed. The destruction of abandoned
groundwater wells should be performed in
accordance with state standards. California
Abandoned
private wells can
pose a water
quality concern if
left unaddressed.
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Water Code (CWC) Section 13750.5 requires
that those responsible for the destruction of
water wells possess a C-57 Water Well
Contractor’s License. Whenever a water well
is destroyed, a report of completion must be
filed with the California DWR within 60 days
of the completion of the work. DDW and
Ventura County (County) are responsible for
permitting and inspecting construction and
destruction of wells.
State policy for all functional and abandoned
wells is to establish a “well site control
zone”, the area immediately surrounding the
well alternatively referred to as the
“wellhead”. The purpose of this zone is to
provide protection from vandalism,
tampering, or other threats at the well site.
The size of this zone can be determined by
using a simple radius, or an equivalent area.
The well site control zone should be
managed to reduce the possibility of surface
flows reaching the wellhead and traveling
down the unprotected casing. SWRCB-DDW
regulations recommend a minimum radius
of 50 feet for well site control zones for all
public water systems in the state. The
requirement applies to abandoned wells as
well as functional activities that could
potentially lead to “source water
contamination” according to EPA regulations
(IWRP, 2007). Additionally, well owners are
responsible for destroying abandoned wells
per the Public Health and Safety Code, Part
9.5, Section 115700.
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Figure 5.3 BWRDF Water Quality Sampling Station
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5.8.2 Groundwater Contamination
Response
Currently, the Agency has a Water Shortage
Contingency Plan (WSCP) to handle the
effects of potential groundwater
contamination and mitigate disasters such
as sudden water shortages. This information
is provided in Section 8.
The WSCP can provide guidance for dealing
with the effects of a water shortage, which
may be due to groundwater contamination.
The Agency also has emergency response
policies in place to respond to emergencies.
Two recent tests of the Agency’s emergency
response network were seen in the year
2020, when the Agency responded to the
Covid-19 pandemic,
and in 2021, when
Governor Newsom
issued a State of
Emergency due to
drought that required
Statewide
correspondence with Level 2 of agency’s
WSCP. In the event of a groundwater
contamination shortage, the Agency will
work with the County’s Emergency
Operations Center to deal with the effects of
potential water shortages caused by severe
water quality concerns.
5.8.3 Sanitary Surveys by DDW
The quality of water dictates numerous
management strategies a water purveyor
will implement, including, but not limited to,
the selection of water sources, treatment
alternatives, blending options, and
modifications to existing treatment facilities.
A direct result from the degradation of a
water source is increased treatment cost
before consumption. The poorer the quality
of the source water, the greater the
treatment cost. This in turn can decrease
water supply reliability by potentially
decreasing the total supply.
A Watershed Sanitary Survey is a document
that examines the potential sources of
contaminants in the watersheds and
includes recommendations for managing
these effects. Per DDW guidelines, the
Watershed Sanitary Surveys are supposed to
be updated every five (5) years. In the
Agency’s case, the Agency does use
imported surface water, so the Agency does
prepare Watershed Sanitary Surveys. In
2020, Agency staff along with the DDW staff
performed a sanitary survey of the water
system. This Sanitary Survey describes water
quality for PHWA’s sources. The District is
also subject to periodic inspections by DDW
staff every three (3) years. The Sanitary
Surveys conducted by DDW include
inspection and evaluation of the following:
1. Water Sources
2. Treatment
3. Distribution System
4. Finished Water Storage
5. Pumping Facilities
The Agency will
work with the
County’s
Emergency
Operations Center.
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6. Monitoring & Reporting
7. System Management/Operation
8. Operator Compliance (with State
Requirements)
5.8.4 Impacts on Management &
Reliability
As a result of the Agency’s water quality
policies, the Agency has not experienced
water quality issues that affect its ability to
meet demands. Therefore, the Agency does
not anticipate any significant impacts to
water supply reliability due to water quality
issues.
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6 6.5 OVERVIEW
The City’s water consumption is subject to
significant change from year to year.
Further, water use within The City’s service
area is also variable over the course of a
given month or climate conditions. This
section explores the water usage trends
within the Agency and quantifies total water
usage per customer type. In addition, the
provisions of Senate Bill x7-7 (Water
Conservation Act) are explored in detail.
6.6 COVID PANDEMIC’S EFFECT ON THE
WATER SYSTEM
As a result of the Coronavirus Disease 2019
(COVID-19) Pandemic, Commercial and
Institutional water use had declined. On
March 19, 2020, an Executive Order and
Public Health Order directed all Californians
to stay home, except to go to an essential job
or to shop for essential needs. It was then
modified on May 4, 2020. The Regional Stay
Home Order, announced December 3, 2020,
triggered additional restrictions after the
region was announced to have less than 15%
ICU availability. It prohibited private
gatherings of any size, closed sector
operations except for critical infrastructure
and retail, and required 100% masking (with
certain exceptions as indicated in guidance
for use of face coverings) and physical
distancing. The Regional Stay Home Order
was lifted January 25, 2021. During his 2021
State of the State Address Governor, Gavin
Newsom reported that California had
administered nearly eleven (11) million
doses of the vaccine, and that the State was
6 Section 6:
Water Use
The City of Port
Hueneme has
consumed 2,000 AF -
2,500 AF of potable
water in recent years
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well on its way to seeing an end to this
pandemic.
The DDW has stated that the PWS
operations are designated as essential
functions and staff and suppliers are not
restricted by any current orders. This has
allowed for water system operators and
maintenance workers to successfully keep
the PWS providing safe and clean drinking
water to their customers.
The COVID‑19 pandemic temporarily altered
water‑use patterns and utility operations
across California. Stay‑at‑home orders in
2020 and 2021 led to higher residential
water use, while
commercial, industrial,
and institutional
demand declined due
to widespread facility
closures. Many
agencies observed
shifts in peak‑hour
demand and changes
in spatial distribution, with more water used
in neighborhoods and less in business
districts. Although these patterns gradually
normalized as restrictions eased, the
pandemic highlighted how quickly demand
can shift during major disruptions.
Water utilities also experienced operational
and financial impacts during the pandemic.
Many households faced economic hardship,
leading to increases in customer arrearages
and reduced revenue stability for some
agencies. Utilities also navigated staffing
shortages, supply‑chain delays, and the need
for enhanced safety protocols to maintain
essential services. While most systems
remained resilient, the pandemic
underscored the importance of emergency
planning, financial reserves, and operational
flexibility for maintaining reliable water
service during large‑scale disruptions.
6.7 CURRENT CITY WATER NEEDS
Water use within the City’s service area
includes residential potable use, landscape
irrigation use, commercial and institutional
uses, and of course water losses. Water use
is variable and depends on a number of
factors which include seasonal climate
changes, demographic shifts, changes in
land use or redevelopment, and of course
legislation. Since the Agency’s service area is
largely residential, changes in residential
plumbing fixtures and customer usage habits
can significantly affect water usage.
6.8 CLIMATE IMPACTS ON WATER USE
California faces changes in water use habits
due to a variety of issues including
population growth, regulatory restrictions
and climate change (including the severe
drought of 2020-2022). More specifically,
weather unpredictability (more extreme
drought and flood events) poses additional
challenges to water agencies, not only due to
The Covid-19
Pandemic has
impacted water
use in the
residential and
commercial
sectors.
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impacts on water supplies but also due to
impacts on water demands.
During and since the preparation of the 2020
UWMP, there have been local and statewide
influences on water use in the Agency.
California experienced a multi-year drought
from 2020 through 2022, with precipitation
consistently below average and record-high
temperatures exacerbating water scarcity.
Water year 2022, covering October 2021 to
September 2022,
ended with 77% of
average precipitation,
following an even drier
2021, making the
three-year stretch
drier than the previous
record dry period of 2013–2015. Snowpack,
a critical water source, fell to 35% of average
by April 1, 2022, despite a strong start in
December. Drought severity varied
regionally, with the Central Valley and
northern basins experiencing the most
extreme conditions.
Environmental Impacts: The drought led to
dry soils, reduced water availability, and
increased wildfire risk. Wildfire activity
fluctuated, with 4.3 million acres burned in
2020, decreasing to 2.57 million acres in
2021 and 362,455 acres in 2022, reflecting
both drought intensity and mitigation
efforts. Reduced snowpack and low
precipitation stressed rivers, reservoirs, and
groundwater systems, affecting ecosystems
and water supply reliability.
Agricultural and Economic Impacts:
Agriculture was heavily affected, particularly
in the Sacramento Valley and rice-producing
counties. In 2022, 750,000 acres of farmland
were idled, more than half in the
Sacramento area. Direct economic losses to
farm activity were estimated at $1.2 billion
in 2022, up from $810 million in 2021, with
additional losses of $845 million in food
processing industries, totaling $2 billion in
value-added losses and 19,420 jobs lost.
Increased evapotranspiration due to higher
temperatures further stressed crops,
requiring more irrigation to maintain
productivity.
Regional and Temporal Variability: Drought
intensity varied across the state and over
time. In 2020, drought conditions were less
severe, while 2021 and 2022 saw
widespread and more intense drought,
particularly in the Central Valley. Northern
California basins faced early water
curtailments, and the Sacramento Valley
experienced unprecedented climatological
stress due to limited groundwater pumping
capacity. Despite these challenges,
mitigation measures such as land idling,
water trading, and increased groundwater
pumping helped reduce potential losses.
Changes in water usage habits have a special
Snowpack, a
critical water
source, fell to 35%
of average by
April 1, 2022.
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concern for the State due to the interdependence of many agencies for the transfer and use of water. For instance,
some agencies are unable to produce water
locally and thus entirely dependent on
imported water sources, while others are
able to produce all water locally (i.e.
groundwater). Further, some agencies are
able to reduce demands with minimal
economic impacts (only water sales
revenues), while other agencies will suffer
economically (i.e. agricultural & industrial
users) if required by
State or local agencies
to reduce water
consumption. Thus,
the State will likely face
challenges in the near
future to find the
correct balance of
water supply allocations to meet demands
under various weather conditions. For State
Water Project (SWP) water rights holders,
this is an all-too critical issue.
6.8.1 California Water Plan Update 2023
Department of Water Resources’ (DWR)
California Water Plan Update 2023
emphasizes the urgency of climate change
impacts, the need for watershed resilience,
and the importance of equity in water
management. It aims to ensure that all
Californians benefit from water resources
that are sustainable and resilient to climate
change. There are three themes including:
Addressing Climate Urgency: The plan
recognizes the increasing variability in
California's hydrology due to climate change
and promotes adaptive infrastructure and
emergency planning to enhance resilience.
Strengthening Watershed Resilience: It
encourages coordinated efforts at the
watershed level to integrate engineered
systems with natural processes, aiming for
multiple benefits across water, agriculture,
and ecology.
Achieving Equity: For the first time, the
update includes a dedicated chapter on the
challenges and resources of California Native
American Tribes, ensuring that Indigenous
knowledge and priorities are integrated into
statewide planning.
6.9 WATER USE
6.9.1 Recent Water Use
Table 6.1 shows the City’s water
consumption over the past five (5) years.
The State will
likely face
challenges in the
near future to find
the correct
balance of water
supply allocations.
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Table 6.1 City Recent Water Use
Year
Total Potable
Consumption
(AF)
Per Capita
(GPCD)
2021 1,817 79.9
2022 1,620 77.6
2023 1,579 68.9
2024 1,557 70.3
2025
1,651 71.4
Average: 1,645 73.6
2020 Water Use Target: 109
6.10 WATER USE BY SECTOR
6.10.1 Service Connections/Accounts
The City maintains records of water
consumption and, as of July 1, 2025, bills its
customers on a monthly basis for water and
sewer service. Water losses due to leakage
or inaccurate water meters, are calculated in
accordance with CWC 10631(e)(3)(B). The
total number of service connections and
water consumption is shown in Table 6.2,
respectively.
Table 6.2 Service Connections (2025)
Sector Service
Accounts
Single Family Residential 5,174
Multi-Family Residential 272
Institutional 0
Commercial 172
Landscape Irrigation 236
Industrial 1
Agriculture 0
Other 24
Single Family Residential 5,174
Total Connections: 5,879
The City’s water rates are listed in Section
9.8. Water sales data is compiled by City
water staff and submitted to DWR in the
Electronic Annual Report (eAR). The total
water consumption by customer type since
2021 is shown on Table 6.3. As noted by the
table, Single-Family Residential accounts are
the highest consuming sector in the City
since most of the City is zoned for singlefamily accounts (with higher densities for multi-family accounts).
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Table 6.3 Recent Water Demand by Sector (AF)
Sector 2021 2022 2023 2024 2025
Single Family Residential 891 835 816 793 820
Multi-Family Residential 372 350 372 371 373
Commercial 170 176 160 151 155
Institutional - - - - -
Landscape Irrigation 375 252 223 233 294
Industrial 10 7 8 8 8
Agriculture - - - - -
Other - - - - -
Total Water Sales: 1,817 1,620 1,579 1,557 1,651
Water Loss
(Real Loss + Apparent Loss) 89.0 233.5 66.9 122.3 60.2
Total Water Consumption
(Total Supply into System): 1,906 1,854 1,646 1,679 1,711 *Estimated Water Loss value for 2025 was determined from Agency internal supply/demand data. However, value cannot be verified until validation of 2025 Water Audit and has therefore been excluded from the average.
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Figure 6.1 Current Water Demand by Sector (in 2025)
Single Family
Residential
47.9%
Multi-Family
Residential
21.8%
Commercial
9.1%
Landscape Irrigation
17.2%
Water Loss
3.5%
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6.10.2 Distribution System Losses
As indicated by Table 6.3, the City's Water
Loss ranged from 60.2 to 233.5 AF. Water
Loss is determined as the sum of apparent
loss and Real Loss, as determined in each
years Validated Water Loss Audit. Examples
of Water Loss consists of routine flushing,
unmetered use, and main breaks, to name a
few. Although water losses have cost
impacts on water agencies, they cannot be
prevented entirely.
Instead, effort is given to controlling the
quantity of water losses (to a cost-effective
extent) in order to reduce the cost impact of
water losses on water operations. For this
reason, the City’s Staff prepares annual
Water Loss Audits, using AWWA software.
The 2024 Audit shows that the City’s Leakage
Index (the ratio of real loss to unavoidable
loss) was 0.9, which is below the 10th
percentile of Water Purveyors. The City’s
Validated Water Loss Audits can be located
on DWR’s WUE Portal:
wuedata.water.ca.gov/awwa_plans
6.10.3 2028 Water Loss Standard
California Water Code (CWC) Section
10608.34 requires SWRCB to develop water
loss performance standards for urban retail
water suppliers. Executive Orders B-37-16
and B-40-17 direct SWRCB and DWR to
minimize water waste through system leaks.
Water loss performance standards were
developed through a rulemaking that
became effective in 2023. As part of a
proposed water conservation regulation,
urban retail water suppliers (not individual
households or businesses) will be held to
"urban water use objectives." An urban
water use objective is the sum of standardbased budgets for a subset of water uses, such as residential outdoor use, as further
described in Section 6.11.
Retail Suppliers must meet water loss
standards by January 1, 2028, calculated on
a system level. Ongoing compliance will be
on a three-year average basis. The baseline
period for the 2028 Water Loss Standard is
2017-2020. Real loss and apparent losses
used to calculate the standard are the
average real losses and apparent losses in
the baseline period. SWRCB staff can initiate
an adjustment process for any system that
has significant changes in data compared to
the baseline if at least three (3) compliance
assessments have passed. Suppliers can
request an adjustment to the baseline
period data if significant data improvements
have been made.
Suppliers must either meet their apparent
loss standard (equivalent to their baseline
period (2017-2020) apparent losses) or
submit an inventory of all apparent losses.
Meeting the apparent loss standard is not
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required as long as an inventory of apparent
losses is submitted.
The City’s Baseline Real Loss is 6.0 gallons
per service connection per day (GPSCD) and
Real Loss Standard is 6.0 gpscd, resulting in a
Required Real Loss Reduction from Baseline
of 0%. Apparent Loss Standard is 4.8 gpscd.
6.11 URBAN WATER USE OBJECTIVE
The “Making Conservation a California Way
of Life” regulation went into effect on
January 1, 2025 and establishes unique
efficiency goals for each urban retail water
supplier in California and provides those
suppliers flexibility to implement locally appropriate solutions. The regulation seeks to cultivate long-term practices that help
communities adapt to California’s ongoing
water challenges. The regulation requires
suppliers to:
• Annually calculate urban water use
objectives for a subset of urban water
uses: residential indoor water use,
residential outdoor water use, real
water loss, and commercial, industrial,
and institutional (CII) landscapes with
dedicated irrigation meters (DIMs).
• Carry out performance measures for
CII water us.
• Annually report to SWRCB.
The City’s Compliance Summary Report,
prepared by SWRCB staff on February 23,
2026, summarizes the supplier’s compliance
with annual reporting requirements under
the “Making Conservation a California Way
of Life” regulation for the state fiscal year
2024-2025. This report was due on January
1, 2026.
6.11.1 Key Highlights from the Report
The following points are a summary of
Sections 3 through 7 of the City’s Compliance
Summary Report:
• The report was submitted on time, on
December 29, 2025.
• The supplier has met its calculated
objective for fiscal year 2024-2025.
• The supplier has no approved
variances or temporary provisions for
fiscal year 2024-2025.
• The report contains zero (0) data
quality flags.
6.11.2 Objectives Calculated with Future
Standards
The water use objectives will become
progressively smaller as standards change
through 2040. The following Table 6.4
compares the current water use objective
and reported water use to future efficiency
requirements; the full summary can be
found in Section 8 of the City’s Compliance
Summary Report. While this table does not
capture how future water use objectives will
be influenced by changes in local
climatology, service area population, square
footage of irrigated landscapes, and other
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Table 6.4 Objectives Calculated with Future Standards
Fiscal Year FY 24-25 Use
(MG)
Calculated/Projected Objective
(MG)
Current use lower than
objective?
24-25 517.8 606.0 Yes
25-26 517.8 574.5 Yes
30-31 517.8 535.5 Yes
35-36 517.8 521.3 Yes
40-41 517.8 509.7 No (objective is 1.6% lower)
data that will factor into future water use
efficiency objectives, it is provided as a tool
for local planning purposes.
As the table suggests, the City has met its
calculated objective for fiscal year 2024-
2025. The City’s Compliance Summary
Report can be located on DWR’s WUE Portal:
wuedata.water.ca.gov/uwuo_plans
6.12 WATER CONSERVATION ACT
6.12.1 Act Background (SBx7-7)
Due to the limited amount of water allowed
to be pumped in the San Joaquin Delta, the
CA Legislature drafted the Water
Conservation Act of 2009 (SBx7-7) to protect
statewide water sources. The legislation
called for a 20 percent reduction in water
use in California by the year 2020. The
legislation amended the Water Code to call
for 2015 and 2020 water use targets in the
2010 UWMPs, updates or revisions to these
targets in the 2015 and 2020 UWMPs, and
allows DWR to enforce compliance to the
new water use standards. In essence, the bill
requires each urban retail water supplier to
develop urban water use targets to help
meet the 20 percent goal by 2020 and an
interim 10 percent goal by 2015.
The bill establishes methods for urban retail
water suppliers to determine their targets to
help achieve statewide water reduction
targets, which may or may not be a strict 20
percent level. The retail water supplier must
select one of the four target-setting methods
as described in Section 2.4.3. The retail
agency may also choose to comply with
SBx7-7 as an individual or as a region in
collaboration with other water suppliers.
Under the regional compliance option, the
retail water supplier is mandated to report
the water use target for its individual service
area. The bill also includes reporting
requirements in the 2010, 2015, and 2020
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UWMPs. Beginning in 2016, failure to
comply with interim and final targets makes
a retail agency ineligible for grants and loans
from the state needed to attain water selfsufficiency by 2020; however, if an agency which is not in compliance documents a plan
and obtains funding approval to come into
compliance, it could then become eligible for
grants or loans.
In addition to an overall statewide 20
percent water use reduction, the objective
of SBx7-7 is to reduce water use within each
hydrologic region in accordance with the
agricultural and urban water needs of each
region. Currently, DWR recognizes 10
separate hydrologic regions in California as
shown in Figure 6.3. Each hydrologic region
has been established for planning purposes
and corresponds to the State's major
drainage areas. The service area of the City
is located in the South Coast Hydrologic
Region (HR), as shown in Figure 6.4.
Wholesale water suppliers, including FMWD,
are not required to determine baseline daily
per capita water use, urban water use target,
interim urban water use target, or
compliance daily per capita water use.
Instead, wholesale water suppliers are
required to include in their UWMPs
discussions of programs they intend to
implement to support the retail water
suppliers, such as the City, in attaining their
reduction goals and targets.
Figure 6.2 California's 2020 Water
Conservation Goals
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Figure 6.3 California's 2020 Water Conservation Goals
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Figure 6.4 South Coast Hydrologic Region
City of Port
Hueneme
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6.12.2 Exempt Agencies
If an agency has a baseline per capita water
use of 100 GPCD or less, that agency will not
have to adhere to any reduction targets as
that agency is already considered water
efficient. In such a case, that agency must
document in subsequent UWMPs that its
water usage is still under 100 GPCD.
6.12.3 SBx7-7 Baseline & Target
The City previously established water use
targets for 2015 and 2020. DWR provided
guidelines for determining these targets in
its Methodologies guidebook for the 2010
and 2015 UWMPs. In the 2010 and 2015
UWMPs, the City's baseline water use and
targets were determined based on the
procedures shown in Figure 6.5 and Figure
6.6. If an agency's 10-year baseline is slightly
higher than the Hydrologic Region's target,
that agency still must achieve a five percent
reduction from its 5-year baseline. If an
agency has a per capita water use of 100
GPCD or less, that agency will not have to
adhere to any reduction targets as that
agency is already considered water efficient.
Since the City does not use recycled water, a
10-year instead of a 15-year rolling average
was previously calculated. The City’s
baseline water use is 160.6 GPCD, which was
obtained from a 10-year period from January
1, 1996 to December 31, 2005.
Table 6.5 shows historic (January 1, 1996 to
December 31, 2005) water use and provides
the base period ranges used to calculate the
baseline water use for the City. The data was
used to calculate the continuous 10-year and
5-year average baseline. Moreover,
regardless of the compliance method
adopted by the City it will need to meet the
minimum water use target of 5 percent
reduction from a 5-year baseline as
calculated. Values for 1996 to 2007 are from
the 2010 UWMP.
As shown in Table 6.6, the City’s 10-yr and 5-
yr baselines were determined to be 160.6
GPCD and 159.1 GPCD, respectively. The
City’s baseline water use was then compared
to the regional compliance target to
determine the applicable reduction amounts
per the SBx7-7 additions to the water code.
The legal stipulations applicable to the City
and the required target to be enforced by
DWR are shown in Table 6.6.
Since the City's minimum reduction
requirement of 115 GPCD is less than the
regional target of 142 GPCD, the City must
select Method 1, or eighty percent (80%) of
10-year baseline, as its 2020 water use
target. Therefore, the City's compliance
target for 2020 is 109 GPCD in accordance
with Section 10608.22 of the Water Code. As
noted in Table 6.6, the City has been under
their target for over the past five (5) years.
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Figure 6.5 Procedure for Determining Baseline Per Capita Water Use Figure 6.6 Procedure for Determining Target Per Capita Water Use 4 Compile
Water Use
Rates over 10
Years
3 Water Use /
Population
= Rate
2 Potable
Water Use
1 Service Area
Population
5 Select
Higher
Target
4 ...Calculate
95%
Reduction
Target
3 If < 95%
Hydrologic
Region...
2 Compare to
95%
Hydrologic
Region
1 Set 80%
Reduction
Target
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Table 6.5 City of Port Hueneme Water Use (GPCPD)
Year Service Area Population Total Potable
Consumption (AF) Per Capita (GPCD)
2000 21,845 3,199 138
2001 21,833 3,146 165
2002 21,821 3,175 154
2003 21,809 2,990 165
2004 21,797 2,892 150
2005 21,785 2,778 169
2006 21,773 2,917 144
2007 21,761 3,213 156
2008 21,749 2,950 160
2009 21,737 2,781 153
2000 21,845 3,199 138
2001 21,833 3,146 165
10-yr. Baseline (1999 - 2008) (SB7: 10608.20) 117
5-yr. Baseline (2003-2007) (SB7: 10608.22) 114
State Hydrologic Region Baseline 180
State Hydrologic Region Target 149
Table 6.6 City of Port Hueneme SBx7-7 2020 Water Use Targets Min. Reduction Requirement
(10608.22)
20% Target
(10608.20) (b)(1)
5% Reduction from Regional Target
(10608.20) (b)(3)
115 109 142
2020 Per Capita Target: 109
Interim (2015) Target: 113
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6.12.4 SBx7-7 Target Compliance
Although the requirements of SBx7-7
seemed stringent, it is noteworthy to
mention that the City has seen an increase in
water efficiency in the past ten years. This is
due in part to State legislation, stricter
conservation measures, saturation of watersaving plumbing fixtures, and overall water conservation awareness. As indicated by
Table 6.6, the City has already achieved not
only its interim (2015) target, but also its
final 2020 target. The City can maintain its
consumption rates below the SBx7-7 target
by continuing to focus on water
conservation.
6.13 PROJECTED WATER DEMAND
The 2019 the Agency Facility Master Plan for
the Brackish Water Reclamation
Demonstration Facility (BWRDF) conducted
a water supply demand model to project
demands to 2040. These demands were
updated based on demand projected
calculated by CIBCSD in their 2020 Master
Plan and City of Port Hueneme demands
calculated in their 2020 Draft UWMP. Table
4-2 summarizes the demand projections
presented in the master plan. The
projections include historical and projected
customer demand and retail demands by
agencies that are primarily wholesalers with
a small volume of retail sales. These agencies
include the Ventura County Game Preserve
and Agromin.
6.13.1 Passive Savings
For the sake of future water demand
projections in this UWMP, this “passive
savings” is taken into
consideration. It is
practical to assume
that water use
efficiency will continue
to increase own its own
over the next couple of
decades. In other
words, the City should experience some
“passive savings” for the foreseeable future
driven in part by State and local laws
governing water use. Table 6.7 lists
projected water use by sector assuming a
“passive savings” of about 0.5% annually and
beginning with a consumption rate of 73.6
GPCD. A passive savings of 0.5% annually
should provide a conservative yet practical
estimate for the City.
6.13.2 Climate Changes Consideration
California faces the prospect of significant
water management challenges due to a
variety of issues including climate change.
Climate change is of special concern because
of the range of possibilities and their
potential impacts on essential operations,
particularly operations of the SWP. The most
likely scenarios involve increased
temperatures, which will reduce the Sierra
Nevada snowpack and shift more runoff to
winter months, and accelerated sea level
rise. These changes can cause major
Over time,
“Passive Savings”
will help offset
water demands
from new growth
in the District.
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problems for the maintenance of the
present water export system since water
supplies are conveyed through the fragile
levee system of the Sacramento-San Joaquin
Delta. The other much-discussed climate
scenario or impact is an increase in
precipitation variability, with more extreme
drought and flood events posing additional
challenges to water managers.
The 2009 California Water Plan Update 2
identifies the following probable impacts
due to changes in temperature and
precipitation:
• Decrease in snowpack, which is a
major part of annual water storage,
due to increasing winter
temperatures
• More winter runoff and less
spring/summer runoff due to
warmer temperatures
• Greater extremes in flooding and
droughts
• Greater water demand for irrigation
and landscape water due to
increased temperatures and
• Increased sea level rise further
endangering the functions of the
SWP, which depends on movement
of water through the low-lying
channels of the Sacramento-San
Joaquin Delta. Sea level rise could
also require the SWP to release
additional storage water to avoid sea
water intrusion into the Delta.
6.13.3 Projected Water Use by Sector
For planning purposes, the City 's projected
water use for 2030-2050 is broken down by
sector in Table 6.7. The estimates per sector
are based on the ratios of the sectors shown
in Table 6.3. Figure 6.7 also shows the
Projected Water Demand by Sector (in
2050).
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Table 6.7 Projected Water Demand by Sector
Sector 2030 2035 2040 2045 2050
Water Service Area Population 22,060 22,713 23,366 24,019 24,672 Consumption Rate (GPCD)
Including 0.5% Annual Passive
Savings
71.8 70.0 68.3 66.6 64.9
Demands
Single Family Residential 845 848 851 853 855
Multi-Family Residential 373 375 376 377 378
Commercial 165 166 166 167 167
Institutional 0 0 0 0 0
Landscape Irrigation 280 281 282 283 283
Industrial 8 9 9 9 9
Other 0 0 0 0 0
Total Water Sales: 1,672 1,679 1,684 1,688 1,691
Water Loss
(Real Loss + Apparent Loss) 102 102 102 103 103
Total Water Consumption
(Total Supply into System): 1,773 1,781 1,787 1,791 1,794 Agenda Item No. 10 Page 91 of 142 CC Agenda 06-15-2026
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Figure 6.7 Projected Water Demand by Sector (in 2050)
Single Family
855 AF
Multi-Family
378 AF
Commercial
167 AF
Landscape
283 AF
Industrial
9 AF
Losses
103 AF
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7 7.5 OVERVIEW
Drought conditions continue to be a critical
issue for Southern California's water supply.
The recent drought of 2020-2022 has
impacted deliveries of imported water to
Southern California cities. The documented
deliveries of water from the State Water
Project (SWP) for Water Year 2022 (October
1 st, 2022, to September 30, 2023) indicate
that the volume of water delivered to SWP
Contractors was the lowest since Water Year
2020. Therefore, it is important that
agencies manage water consumption and
reduce reliance on imported water through
local groundwater and surface water
supplies. Water agencies should prepare for
prolonged droughts for up to five (5) years to
ensure a reliable supply of water.
Since the City does rely on imported water,
drought conditions are a critical issue for the
City’s water supply. A strong understanding
of water supply sources, and the current
state, regional, and local issues affecting
those sources, are a first step to properly
managing supply and demand. Water
agencies should prepare for prolonged
droughts for up to five (5) years to ensure a
reliable supply of water.
This Section discusses historic and recent
droughts in the State and in the region. This
Section also compares projected supply to
projected demand over a 25-year planning
period (through 2050) for various climate
7 Section 7:
Reliability Planning
Through CMWD, the
State Water Project
(SWP) accounts for
about 25% of the
City’s supply, which
enhances the City’s
supply reliability.
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scenarios. Demand and supply projections
are provided in Table 7.1 - Table 7.7.
7.6 HISTORIC DROUGHTS
Climate data has been recorded in California
since 1858. Since then, California has
experienced several periods of severe
drought, including: 1928-34, 1976-77 and
1987-91, 2007-2009, 2011-2017 and most
recently in 2020-2022. In addition to these,
California has also experienced several
periods of less severe drought. Among the
aforementioned droughts, the year 1977 is
still considered to be the driest year of
record in the Four Rivers Basin by DWR
(these rivers flow into the Sacramento Delta
and are the source of water for the State
Water Project) which had an all-time low of
15 million acre-feet of average annual
runoff.
In 1983, as a result of previous droughts, the
State legislature enacted the UWMP Act,
which requires the preparation of an UWMP.
Several subsequent amendments have been
made to the Act to ensure such items as
public coordination, recycled water, and
contingency response plans are included in
UWMPs.
In 1991, as a result of the 1987-1991
drought, over 100 water agencies and
environmental groups came together to
form the California Urban Water
Conservation Council (CUWCC) to manage
the impacts of drought and promote water
conservation. In January 2018, the CUWCC
became the California Water Efficiency
Partnership (CalWEP), and consists of over
200 water agencies and private companies.
CalWEP assists its member agencies with
public policy, research, and education tools.
As a result of the drought of 2007-2009,
Governor Schwarzenegger signed the Water
Conservation Act of 2009 (SBx7-7), which is
perhaps the strongest piece of legislation to
date on water conservation, requiring
mandatory water conservation up to 20
percent by 2020.
In January of 2014, former Governor Brown
declared a state of emergency and directed
state officials to take all necessary actions to
prepare for water shortages. As the drought
prolonged into Water Year 2015, former
Governor Brown gave an executive order in
April 2015, which mandated a statewide
25% reduction in water use, with each
agency assigned specific target reductions.
At the local level, water agencies have
enacted their own ordinances to deal with
the impacts of drought. The City’s Water
Shortage Contingency Plan (WSCP), as
contained in Section 8, deals with Water
Conservation.
7.7 RECENT DROUGHT (2020-2022)
A significant and prolonged drought hit the
state of California in 2020-2022. The drought
depleted reservoir levels all across the state,
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as reflected by Figure 7.1. On July 8, 2021,
Governor Newson declared a state of
emergency and issued an Executive Order
calling for a statewide voluntarily reduction
of 15% from consumers 2020 levels in order
to preserve the State's surface and
groundwater supplies and better prepare for
the potential for continued dry conditions
next year, and to join existing efforts by
agricultural water users, public water
systems, and governmental agencies to
respond to water shortages. On October 19,
2021, Governor Newsom issued an
Executive Order declaring a statewide
drought emergency.
Figure 7.1 Governor Newsom at Lake
Mendocino in Ukiah on April 21, 2021
In May 2022, the Governor ordered the
SWRCB into evaluate the adoption of
regulations banning irrigation of “nonfunctional” turf (or grass), such as decorative grass adjacent to large industrial and
commercial buildings. The ban would not
include residential lawns or grass used for
recreation, such as school fields, sports fields
and parks. The DWR estimated this ban
alone would result in potential water savings
of several hundred thousand acre-feet. An
acre-foot of water serves the needs of
approximately three households for a year.
In March 2024 DWR finalized the 2024 State
Water Project Long-Term Drought Plan. The
2024 State Water Project Long-Term Drought
Plan consolidates information and actions
taken during past droughts along with
descriptions of the actions taken by the SWP
to plan for and prepare for future droughts.
The scope of the SWP’s drought planning
activities is driven by the role the SWP plays
within California’s water
management system
during times of drought.
The SWP’s planning is
specific to its role as a
wholesale water
provider. The SWP’s
drought planning is
necessarily different from the planning by
other water managers that are responsible
for directly providing water to end-use
customers. For these water managers,
drought planning generally includes
identifying a portfolio of different water
supplies and demand management actions
that ensure a minimum amount of water can
be provided with a set degree of certainty.
Retail water suppliers have a “duty to serve”
water demand within their service areas and
2024 SWP
Drought Plan
consolidates
information and
actions taken
during past
droughts.
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must have detailed contingency plans for
meeting demand during drought conditions.
Although the recent droughts have more
significantly impacted northern and centralvalley agencies that use SWP water for agriculture, the City is indirectly impacted by
the recent drought conditions on Northern
California Waters since this water source is
the majority source of water imported from
the MWD.
7.8 STATE WATER SUPPLY RELIABILITY
As a result of continued drought challenges
to the State’s water supplies, SWP
Contractors understand the unpredictability
of imported water allocations from the SWP.
With participation of the SWP Contractors,
DWR strives to meet the water needs of
Southern California by developing new
projects to increase the capacity of its
supplies while encouraging its member
agencies to develop local supply projects to
meet the needs of its customers. Also, DWR
is committed to developing and maintaining
high-capacity storage reservoirs, including
both DWR-owned and Contractor-owned
(such as Diamond Valley Lake, an MWDowned reservoir, the largest in Southern California), to meet the needs during times
of drought and emergency.
The large reservoirs help to avoid the
repercussions of reduced supplies not only
from the SWP but also the Colorado River
Aqueduct (CRA). Throughout the Southern
California Region, a total of three (3) DWRowned reservoirs, nine (9) MWD-owned reservoirs, and twenty-four (24) SDCWA
reservoirs contain up to 2.2 million acre-feet
(MAF) of water storage.
One of the State’s largest reservoirs, Lake
Oroville in Butte County, witnessed low
water conditions at Enterprise (Figure 7.5).
On this date (October 4, 2022), the water
storage was 1.22 MAF, 35 percent of the
total capacity.
Figure 7.3 shows an aerial view of high water
conditions at Enterprise Bridge. On this date
(June 12, 2023), the water storage was 3.52
MAF, 100 percent of the total capacity.
7.8.1 State Water Project (SWP)
Reliability
As a SWP contractor, MWD has a “Table A”
allocation of up to 1,911,500 AFY (per year).
Since MWD began receiving SWP water,
however, the average amount of water
received each year is roughly 58% of the full
Table A amount. On an annual basis, each of
the 29 SWP Contractors request amounts of
SWP water based on their anticipated yearly
demand. Each SWP contractor’s Water
Supply Contract contains a “Table A” amount
that identifies the maximum amount of
water that a contractor may request.
However, the amount of SWP water actually
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allocated to contractors each year is
dependent on a number of factors that can
vary significantly from year to year. The
availability of SWP supplies is generally less
than their full Table A amounts in many
years and can be
significantly less in
very dry years. After
receiving the requests,
DWR assesses the
amount of water
supply available based
on precipitation,
snowpack on Northern California
watersheds, volume of water in storage,
projected carry over storage, and
Sacramento-San Joaquin Bay Delta
regulatory requirements. For example,
according to the State Water Project
Delivery Reliability Report (2023), the total
SWP annual delivery of water to contractors
ranged from a low of 278 thousand acre-feet
(TAF) in 2022 to a high of 3,094 TAF in 2017.
Due to the uncertainty in water supply,
contractors are not typically guaranteed
their full Table A amount, but instead a
percentage of that amount based on
available supply. For instance, the current
DWR Notice to Contractors 26-01 (January
2026) indicates that the initial allocation is
set at 30%, which is up from 10% per initial
allocation. For MWD, the current allocation
based on the Notice to Contractors for this
year is set at 573,450 AF.
The reliability of the SWP impacts the
Contractors ability to plan for future growth
and supply. SWP Contractors can seek out
other local supply sources or transfer
agreements (such as transfers with Colorado
River rights holders). Although not directly
important for the City, matters involving the
SWP do impact the City indirectly.
SWP supplies are
typically less than
the maximum
“Table A” amounts
requested by the
Contractors each
year.
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Figure 7.2 Lake Oroville During Drought of 2020-2022 (October 4, 2022) Figure 7.3 Lake Oroville After Drought (June 12, 2023)
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Figure 7.4 California State Reservoir Levels (May 2026) Agenda Item No. 10 Page 99 of 142 CC Agenda 06-15-2026
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Figure 7.5 SWP Table A Deliveries
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7.9 CITY SUPPLY RELIABILITY
7.9.1 Reliability of UWCD Sources
The City obtains all of its water supply from
imported water from PHWA. PHWA
purchases approximately 80 percent of its
water from UWCD and 20 percent from
CMWD. UWCD receives imported water and
provides groundwater to its purveyors. The
Ordinance to Establish an Allocation System
for the Oxnard and Pleasant Valley
Groundwater Basin established a required
system reduction for UWCD. Therefore,
UWCD’s anticipated purveyors will be
required to reduce their consumption and
obtain supplies from other sources.
The Oxnard Plain Groundwater Basin
currently provides a reliable source of water
for the O-H System except during the
severest droughts. UWCD also has a
contractual right to State Water Project
(SWP) water which can be released from
Castaic Lake and diverted at the Freeman
Diversion. Unfortunately, this supplemental
source is costly and significant water is lost
to infiltration, evaporation, and
consumptive use by vegetation during its
delivery in the Santa Clara River.
7.9.2 Reliability of CMWD Sources
PHWA also purchases imported surface
water from CMWD, which in turn purchases
SWP water from MWD. Imported water
supply originates in Northern California and
is conveyed over 500 miles to Southern
California through the SWP’s system of
reservoirs, aqueducts, and pump stations.
Water is filtered and disinfected at MWD’s
Joseph Jensen Filtration Facility in Granada
Hills (Figure 5.1). CMWD receives the
treated water via MWD’s West Valley Feeder
and CMWD’s three-mile-long tunnel through
the Santa Susana Mountains. CMWD either
stores the treated water in Lake Bard (Figure
8.2) or feeds the water directly to the CMWD
Springville Reservoir near Camarillo. CMWD
has served the needs of its members,
without fail, except for a few days following
the 1994 Northridge Earthquake.
MWD has the obligation to provide available
water to its member agencies, such as
CMWD, based on its existing statute,
governing regulations, and applicable
agreements. As discussed in Section 9.1.2,
both MWD and CMWD have established a
variety of programs to increase the reliability
of imported water deliveries. A discussion of
the potential constraints on water sources
are discussed in detail in the 2020 UWMPs of
UWCD and CMWD.
CMWD’s 2020 UWMP summarizes the
agency’s water service reliability assessment
and drought risk assessment. MWD expects
to be able to meet forecasted CMWD
demands, which in‐turn will be able to meet
demands for PHWA. MWD and CWMD have
both implemented strategies to establish
reliable water supplies for its consumers.
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MWD is participating in the development of
groundwater, groundwater recovery,
recycled water systems, desalination
opportunities, and collection of urban return
flows to augment the reliability of the
imported water system. There are various
factors that may impact reliability of
supplies, such as legal, environmental, water
quality, and climatic, which are discussed.
The water supplies are projected to meet
full-service demands; MWD’s 2020 UWMP
finds that MWD is able to meet with existing
supplies full service demands of its member
agencies in 2025 through 2045 during
normal years, single dry year, and multiple
dry years.
MWD’s 2020 Integrated Water Resources
Plan (IRP) update describes the core
resource strategy used to meet full-service
retail demands under all foreseeable
hydrologic conditions from 2025 through
2045. The foundation of MWD’s resource
strategy for achieving regional water supply
reliability consists of developing and
implementing water resources programs
and activities through its IRP preferred
resource mix. This preferred resource mix
includes conservation, local resources, such
as water recycling and groundwater
recovery, Colorado River supplies and
transfers, SWP supplies and transfers, inregion surface reservoir storage, in-region groundwater storage, out-of-region banking,
treatment, conveyance and infrastructure
improvements. CWMD is reliant on MWD for
its imported water. With the addition of
planned supplies under development,
MWD’s 2020 UWMP finds that MWD will be
able to meet full-service demands from 2025
through 2045, even under a repeat of the
worst drought. MWD’s single dry year is
based on the drought in 1977. MWD’s fiveconsecutive dry years is based on from 1988 to 1992, which represents as the driest fiveconsecutive year historic sequence for MWD’s water supply. In addition to meeting
full- service demands from 2025 through
2045, MWD projects reserve and
replenishment supplies to refill system
storage.
7.9.3 Reliability of Alternative Sources
Since recycled water is produced from
wastewater, this source has the advantage
of consistently being available during any
type of average, single-dry, or multiple-dry
year as discussed in Section 3. If the City
were to use recycled water at some point in
the future, it would genuinely add to the
City’s overall supply reliability, especially
since about 5 percent of the District’s water
is used for landscape irrigation (i.e. lawns,
parks, athletic fields, etc).
7.10 DROUGHT RISK ASSESSMENT
The quantity of supply available from
different water supply sources can vary from
one year to the next depending on
hydrologic conditions. The drought risk
assessment is an assessment of the
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reliability of the City’s water supplies by
comparing projected future water demands
with expected available water supplies
under three different hydrologic conditions:
(1) normal water year, (2) single dry year,
and (3) multiple dry years. For the sake of
this UWMP, the multiple dry-year period is
taken to be five (5) years. Future supply and
demand conditions can be determined from
the following data:
• Population forecasts
• Water supply capacity
• Recent water use trends
The data described has been provided in the
previous sections of this UWMP, including
Section 3 (Water Sources & Supplies), and
Section 6 (Water Use). The projected
comparisons in this Section are based on
data from those previous sections.
7.10.1 Basis for Projected Demands
To project future demands, it will be
assumed that total demand will change
annually based on changes in population
multiplied by the individual demand perperson (also known as the “per-capita” consumption rate -see Section 6). The percapita rates used in the future projections will be based on actual water use data from
the recent past. In particular, the City’s
averages for the last ten (10) years will be
used as the basis to project demands
through the year 2050. To project demands
and supplies, the following is assumed:
• Consumption rate of 73.6 gallons per
capita per day (GPCD) as the average
consumption of the City in the last 10
years.
• Decreasing consumption rate (from
73.6 GPCD) starting in 2026 with a
passive savings of 0.5% annually. This
brings the 2026 consumption rate to
73.2 GPCD.
Although a constant consumption rate
provides a more conservative approach, the
decreasing consumption rate scenario
provides a realistic basis for planning
purposes since it considers gradual
improvements in water-use efficiency Since
2020, the City has seen a 19.43% decrease in
GPCD, revealing an increase in water use
efficiency. The City’s consumption rate in
2020 was 86.7 GPCD, and the City’s
consumption rate in 2025 was 71.4 GPCD.
This amounts to an average decrease of about
3.9% annually.
7.10.2 Demand Increase Factors
2011 represents an average water year for
the City in which the total amount of rainfall
was about 11 inches. A single dry year for the
City was represented in 2013 in which the
total amount of rainfall was about 3.7
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inches. A multiple dry year sequence for the
City is represented from 2013 to 2017,
where the recorded rainfall was about 3.7
inches, 6.3 inches, 4 inches, 8.9 inches, and
6.2 inches, respectively – with none of these
years receiving above average rainfall.
For drought-time demands, is expected that
there will be a small degree of increase due
to the lack of rainfall on landscapes. To
project demands during single and multiple
(five) year drought periods, the following
increase factors will be assumed:
• Single Dry Year: 3%
• Multiple Dry Years: 3%, -1%, -11%, -
15%, and -11%
During the recent drought of 2011 to 2017,
water agencies in the State experienced an
increase in water demands, until former
Gov. Brown’s Emergency Declaration in
2015. Nevertheless, the increase factors
listed are reasonable for the purposes of
demand projections since they provide
reasonable estimates of increases in water
use for irrigation during dry-years.
7.10.3 Basis for Projected Supplies
As for projected supplies, because the City ’s
supplies are entirely reliant on the Agency’,
projected supplies are based off their
projections. The Agency’s agreement with
UWCD currently has an expiration date of
2035. Thus, for conservative planning
purposes, the Agency’s projected water
supplies received from UWCD (total rights)
will be decreasing at a rate of 106 acre-feet
per year (AFY) from 2026 to 2040 and then
92 AFY from 2041 through 2050, and the
Agency’s current wells(operating capacity of
roughly 108 gpm or 174 AFY) will be
excluded. The Agency’s projected water
supplies received from CMWD (total rights
of 2,023 gpm or 3,263 AFY) will be
maintained from 2026-2050. This brings the
annual minimum available supply to the
values shown in Table 7.1 through Table 7.7.
Minimum available supplies are further
based on the assumption that the City
receives 53% of PHWA supply, which has
been the case from 2021-2025.
7.10.4 Tabular Comparisons
Table 7.1 through Table 7.7 provide an
analysis of the Agency’s supply and demand
projections to the year 2050. Based on the
data contained in these tables, the Agency
can expect to meet future demands for all
climate conditions through 2050.
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Table 7.1 City of Port Hueneme Water Supply Availability & Demand Projections Normal Water Year (AF)
Water Sources 2030 2035 2040 2045 2050
Population
Water Service Area Population 22,060 22,713 23,366 24,019 24,672 Consumption Rate (GPCD)1
Including 0.5% Annual Passive Savings 71.8 70.0 68.3 66.6 64.9 Supply
Groundwater Pumped (Total)2 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,773 1,781 1,787 1,791 1,794
Total Anticipated Use of Supplies3
(Estimated Production) 1,773 1,781 1,787 1,791 1,794
Minimum Available Supply 3,198 2,949 2,707 2,491 2,276
Demand
Estimated Potable Water Demand 1,773 1,781 1,787 1,791 1,794 Estimated Recycled Water Demand 0 0 0 0 0
Total Estimated Demand 1,773 1,781 1,787 1,791 1,794
Compare to Avg. Demand from 2021-
2025 1,645 AF) 108% 108% 109% 109% 109%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity4 1,425 1,168 920 700 482
Notes:
1. Total Demand = Consumption Rate x Projected Population a. Average consumption rate of last 10 years = 73.6 gallons per capita per day (GPCD) b. Estimated starting consumption rate in 2026 = 73.2 GPCD c. Approximate “passive” savings: 0.5% per year
d. Projected “passive” savings: 0.5% per year = 64.9 gpcd by 2050
2. Groundwater production is assumed to not be utilized for conservative planning purposes.
3. Projected purchased water is set equal to the projected water consumption (demands) shown in Table 6.7.
4. No other potable supply sources are expected to become available.
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Table 7.2 City of Port Hueneme Water Supply Availability & Demand Projections Single Dry Year (AF)
Water Sources 2030 2035 2040 2045 2050
Population
Water Service Area Population 22,060 22,713 23,366 24,019 24,672 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 71.8 70.0 68.3 66.6 64.9 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,827 1,834 1,840 1,845 1,848
Total Anticipated Use of Supplies
(Estimated Production) 1,827 1,834 1,840 1,845 1,848
Minimum Available Supply 3,198 2,949 2,707 2,491 2,276
Normal Year Supply 1,773 1,781 1,787 1,791 1,794
% of Normal Year 103% 103% 103% 103% 103%
Demand
Total Dry Demand 1,827 1,834 1,840 1,845 1,848
Normal Year Demand 1,773 1,781 1,787 1,791 1,794
% of Normal Year 103% 103% 103% 103% 103%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 1,372 1,115 867 647 428
Notes:
1. Dry Demand = Normal Year Demands x Single Dry Year Increase of 106%.
2. All other items determined in similitude to Table 7.1.
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Table 7.3 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2026-2030) (AF)
Water Sources 2026 2027 2028 2029 2030
Population
Water Service Area Population 21,538 21,668 21,799 21,929 22,060 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 73.2 72.9 72.5 72.1 71.8 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,820 1,751 1,575 1,506 1,578
Total Anticipated Use of Supplies
(Estimated Production) 1,820 1,751 1,575 1,506 1,578
Minimum Available Supply 3,397 3,348 3,298 3,248 3,198
Normal Year Supply 1,767 1,768 1,770 1,772 1,773
% of Normal Year 103% 99% 89% 85% 89%
Demand
Total Dry Demand 1,820 1,751 1,575 1,506 1,578
Normal Year Demand 1,767 1,768 1,770 1,772 1,773
% of Normal Year 103% 99% 89% 85% 89%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 1,578 1,597 1,722 1,742 1,620 Notes:
1. Dry Demand = Normal Year Demands x Multiple Dry Year Increases of 106%, 101%, 86%, 85%, and 90%
2. All other items determined in similitude to Table 7.1.
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Table 7.4 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2031-2035) (AF)
Water Sources 2031 2032 2033 2034 2035
Population
Water Service Area Population 22,190 22,321 22,452 22,582 22,713 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 71.4 71.1 70.7 70.3 70.0 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,828 1,759 1,582 1,512 1,585
Total Anticipated Use of Supplies
(Estimated Production) 1,828 1,759 1,582 1,512 1,585
Minimum Available Supply 3,148 3,099 3,049 2,999 2,949
Normal Year Supply 1,775 1,777 1,778 1,779 1,781
% of Normal Year 103% 99% 89% 85% 89%
Demand
Total Dry Demand 1,828 1,759 1,582 1,512 1,585
Normal Year Demand 1,775 1,777 1,778 1,779 1,781
% of Normal Year 103% 99% 89% 85% 89%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 1,320 1,340 1,466 1,486 1,364 Notes:
1. Dry Demand = Normal Year Demands x Multiple Dry Year Increases of 106%, 101%, 86%, 85%, and 90%
2. All other items determined in similitude to Table 7.1.
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Table 7.5 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2036-2040) (AF)
Water Sources 2036 2037 2038 2039 2040
Population
Water Service Area Population 22,843 22,974 23,105 23,235 23,366 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 69.6 69.3 68.9 68.6 68.3 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,835 1,765 1,588 1,518 1,590
Total Anticipated Use of Supplies
(Estimated Production) 1,835 1,765 1,588 1,518 1,590
Minimum Available Supply 2,899 2,849 2,800 2,750 2,707
Normal Year Supply 1,782 1,783 1,784 1,786 1,787
% of Normal Year 103% 99% 89% 85% 89%
Demand
Total Dry Demand 1,835 1,765 1,588 1,518 1,590
Normal Year Demand 1,782 1,783 1,784 1,786 1,787
% of Normal Year 103% 99% 89% 85% 89%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 1,064 1,084 1,211 1,232 1,117 Notes:
1. Dry Demand = Normal Year Demands x Multiple Dry Year Increases of 106%, 101%, 86%, 85%, and 90%
2. All other items determined in similitude to Table 7.1.
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Table 7.6 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2041-2045) (AF)
Water Sources 2041 2042 2043 2044 2045
Population
Water Service Area Population 23,496 23,627 23,757 23,888 24,019 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 67.9 67.6 67.2 66.9 66.6 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,841 1,771 1,593 1,522 1,594
Total Anticipated Use of Supplies
(Estimated Production) 1,841 1,771 1,593 1,522 1,594
Minimum Available Supply 2,664 2,621 2,578 2,535 2,491
Normal Year Supply 1,788 1,789 1,789 1,790 1,791
% of Normal Year 103% 99% 89% 85% 89%
Demand
Total Dry Demand 1,841 1,771 1,593 1,522 1,594
Normal Year Demand 1,788 1,789 1,789 1,790 1,791
% of Normal Year 103% 99% 89% 85% 89%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 822 850 985 1,013 897
Notes:
1. Dry Demand = Normal Year Demands x Multiple Dry Year Increases of 106%, 101%, 86%, 85%, and 90%
2. All other items determined in similitude to Table 7.1.
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Table 7.7 City of Port Hueneme Water Supply Availability & Demand Projections Multiple Dry Years (2046-2050) (AF)
Water Sources 2046 2047 2048 2049 2050
Population
Water Service Area Population 24,149 24,280 24,410 24,541 24,672 Consumption Rate (GPCD)
Including 0.5% Annual Passive Savings 66.2 65.9 65.6 65.2 64.9 Supply
Groundwater Pumped (Total) 0 0 0 0 0
Recycled Water 0 0 0 0 0
Purchased Water 1,846 1,775 1,596 1,525 1,597
Total Anticipated Use of Supplies
(Estimated Production) 1,846 1,775 1,596 1,525 1,597
Minimum Available Supply 2,448 2,405 2,362 2,319 2,276
Normal Year Supply 1,792 1,792 1,793 1,794 1,794
% of Normal Year 103% 99% 89% 85% 89%
Demand
Total Dry Demand 1,846 1,775 1,596 1,525 1,597
Normal Year Demand 1,792 1,792 1,793 1,794 1,794
% of Normal Year 103% 99% 89% 85% 89%
Supply/Demand Comparison
Supply-Demand (Difference) 0 0 0 0 0
Supply/Demand (%) 100% 100% 100% 100% 100%
Available Supply Capacity 603 631 766 795 679
Notes:
1. Dry Demand = Normal Year Demands x Multiple Dry Year Increases of 106%, 101%, 86%, 85%, and 90%
2. All other items determined in similitude to Table 7.1.
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7.11 ENSURING ADEQUATE SUPPLY
As indicated by Table 7.1 to Table 7.7, the
Agency will be able to meet demands from
2026 through 2050 for all future climatic
conditions. If supplies need to be increased
in the future, this can most likely be
accomplished through the drilling of new
wells, additional imported water, or through
purchasing of recycled water. Besides
expanding water supplies, there is also the
measure of demand management (water
conservation), which has more immediate
impacts and helps demands to be met using
the supplies that are already at hand. The
City coordinates closely with PHWA with
respect to regional water resource
management.
Finally, droughts will be addressed by
following the criteria of the Agency's Water
Shortage Contingency Plan (WSCP) along
with implementation of the regional
contingency plans. These programs are
discussed in Section 8. For these reasons,
the Agency is confident that an adequate
amount of supply can be provided to meet
demands for all weather conditions through
2050.
7.12 WSCP SUPPLY AUGMENTATION
Although the Agency does not expect to
have a water supply shortage through 2050,
as indicated by Table 7.1 to Table 7.7, severe
and extent droughts may cause the WSCP to
be enacted. The Agency will rely on the
implementation of the WSCP to augment the
Agency’s reduced supply during
consecutively dry years. The WSCP supply
augmentation benefits during a five-year
drought are shown in standard These values
are also reflected in DWR Submittal Table 7-
5 in Appendix E.
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8 8.5 INTRODUCTION
In addition to prolonged droughts that can
gradually decrease water supplies, water
supplies may be interrupted in a number of
sudden, catastrophic ways. Sudden
catastrophes may include earthquakes,
power outages, pumping equipment failures,
or spikes in groundwater contaminants that
cannot be remedied expeditiously. Water
shortages can also be a result of intentional or
accidental manmade catastrophes, such as
acts of terrorism or chemical spills into nearby
canals or groundwater spreading grounds. It is
important that the City of Port Hueneme
(City) has a plan in place to manage its water
system during short or long-term water
shortages. Long term, water shortages can be
addressed through conservation and supply
augmentation. Short term, water shortages
are best handled though a “Contingency
Plan”. A Water Shortage Contingency Plan
(WSCP) is a required component of the City’s
UWMP, which provides guidance on stages of
action to be undertaken by the City in
response to water supply shortages. A WSCP
is an independent document that is
incorporated into the City’s UWMP.
This Section serves as the City’s WSCP. The
City's response to water shortages will be a
coordinated effort between its own staff and
other local and regional water agencies.
During a water shortage emergency, the City
will activate this WSCP. The intent of the plan
is to reduce the effect of shortages on the
8 Section 8:
Contingency Planning
Diesel-powered
pumps can provide
emergency water
supplies during
sudden
catastrophes.
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City’s customers. In compliance with the
Water Code requirements, this plan has six
water shortage levels (up to 10-, 20-, 30-, 40-,
50-percent, and greater than 50% shortage
compared to the normal reliability condition).
8.6 NEED FOR CONTINGENCY PLANS
The recent drought of 2020-2022 significantly
depleted the State’s supply of water and
posed a challenge to many agencies
throughout the State. Following the drought,
the State experienced a wet winter in 2022.
Climate-driven weather extremes, long-term
water supply uncertainty, and aging
infrastructure are stressing a system built for
a different era. The modernized California
Water Plan 2028 is allowing the state’s
opportunity to respond with a clear,
actionable, and durable approach to
statewide water planning.
The WSCP is the City’s operational plan in the
event of a water shortage. Water shortages
would occur when available water supplies
are insufficient to meet normal customer
water demands. Various causes can bring
about a water shortage, including population
growth, climate change, drought, natural
disasters, and other catastrophic events.
The WSCP shall address the ten following
elements:
1. Water supply reliability analysis
2. Annual water shortage assessment
procedures
3. Six standard water shortage stages
4. Shortage response actions
5. Communication protocols
6. Compliance and enforcement
7. Legal authorities
8. Financial consequences of WSCP
implementation
9. Monitoring and reporting
10. WSCP refinement procedures
In addition, the modernization of the
California Water Plan 2028 is driven by Senate
Bill 72 (SB 72). This legislation sets a clear
expectation: move statewide water planning
from description to direction. The Water Plan
will be modernized to:
• Identify and evaluate effective water
management strategies, informed by
economic considerations
• Quantify beneficial uses of water at a
watershed scale throughout California
• Expand engagement across all sectors as
DWR develops the Water Plan
• Establish clear water supply targets that
help align state, regional, and local actions
8.6.1 Recent California Water Code
Amendments
There have been minor changes to the
California Water Code (CWC) affecting the
2025 UWMPs, with only some affecting
WSCPs. The changes are described in Section
1.3. In addition, the following measures were
taken in recent years that affect WSCPs:
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Starting January 1, 2025, major water
suppliers will be required to significantly
reduce water delivery by 2040 to build
drought resilience into everyday life.
The 2025 update to Title 24 (including the
forthcoming enforcement beginning January
1, 2026 for many permit-applications)
introduces a number of changes aimed at
reducing water consumption and improving
system efficiency. Among the most
important:
• Lower maximum flow-rates for toilets,
showerheads and faucets (for example,
toilets continue to be capped around 1.28
gallons per flush in many cases).
• Requirements to reduce pipe sizing and
hot-water wait times to reflect lowervolume fixtures and shorter delivery distances.
• Enhanced documentation and compliance
measures: designers must show that
plumbing layouts meet both water
efficiency and energy criteria under Title
24 Part 6 and CALGreen (Title 24, Part 11).
• Greater emphasis on seismic bracing of
plumbing and efficient plumbing system
design, reflecting California’s dual
challenges of drought and quake-risk.
The SWRCB has adopted emergency
regulations to encourage Californians to use
water wisely and make conservation a way of
life.
8.7 LEGAL AUTHORITY
As indicated by Sections 8.1 and 8.2, the City
has the legal obligation to prepare and
implement a WSCP during times of drought or
sudden supply interruptions. This WSCP
includes a listing of shortage response actions
per CWC § 10632 (a)(3)(A), including the
means by which the City will declare a water
shortage and authorize response actions. The
remaining Sections of this WSCP describe the
City’s response actions in greater detail.
The City is governed by the City Council. The
Council is comprised of five (5) elected
members, serving four (4) year terms. The
City’s Council have enacted pervious water
conservation ordinances and resolutions to
prepare for water shortages.
Per California Water Code Division 1, Section
350, “In the event of a water shortage
emergency where the ordinary demands and
requirements of water consumers cannot be
satisfied without depleting the water supply
of the distributor to the extent that there
would be insufficient water for human
consumption, sanitation, and fire protection”
the City’s Council will declare a water
shortage.
In the event of a water shortage emergency,
the City shall coordinate with the County of
Ventura to issue a proclamation of a local
emergency in accordance with CWC Division
1, §350 and CWC §10632(a)(7)(D).
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8.8 WATER SUPPLY RELIABILITY ANALYSIS
Southern California is expected to experience
an increase in regional demands in the years
2026 through 2050 as a result of population
growth. Although increases in demand are
expected, future demands are effectively
limited due to the requirements of SBx7-7. It
can be reasonably expected that the majority
of agencies have met or were near their
compliance targets for 2020 and will continue
to meet, or will soon meet, their per-capita
usage limit in the future.
Due to the semi-arid nature of the City’s
climate and as a result of past drought
conditions, the City is vulnerable to water
shortages due to its climatic environment and
seasonally hot summer months. Section 7
describes the water availability during single
and multiple dry year scenarios. Table 7.1
through Table 7.7 summarize the supply and
demand comparisons during normal, singledry year, and multiple dry year, respectively.
As shown, the City is capable of providing a
reliable supply of water to meet the future
demands.
8.8.1 WSCP Re-Adoption
Once the WSCP is revised, the City Council will
be required to re-adopt the revised WSCP.
This will require a public hearing to receive
public comments on the WSCP. The revised
WSCP will replace the former WSCP, and will
then remain effective until the City elects to
update the WSCP.
A WSCP previously submitted in 2020 or later
may be reused; however, it must first be
reviewed, and if no updates are needed, it can
be readopted as is. It must be indicated in the
UWMP that a review was conducted and that
a previous WSCP is being readopted. Even
when no changes are made, the WSCP must
undergo a new review and adoption process
as part of the 2025 UWMP document. Section
7 of the 2025 UWMP may be used as a
reference to the readopted WSCP.
8.9 City Staff Response
The City participates in the Ventura County
Multi‐Hazard Mitigation Plan (MHMP) which
was updated and adopted by Ventura County
in 2015. A summary of the seismic risk and
mitigation plan can be found in Section 0.
8.10 ANNUALWATER SUPPLY AND
DEMAND ASSESSMENT PROCEDURES
Under CWC Section 10632(a)(2), beginning by
July 1, 2022, each urban water supplier is
required to prepare their annual water supply
and demand assessment (Annual Assessment)
and submit an Annual Water Shortage
Assessment Report to DWR. The Annual
Water Shortage Assessment Report will be
due by July 1 of every year, as required by
CWC Section 10632.1.
This section outlines the City’s procedures
used in conducting an Annual Assessment,
including the following: 1) written decisionmaking process for determining water supply Agenda Item No. 10 Page 116 of 142 CC Agenda 06-15-2026 2025 URBAN WATER MANAGEMENT PLAN
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reliability; and 2) key data inputs (Table 8.1)
and assessment methodology (Section
8.10.2) for evaluating the water supply
reliability for the current year and one dry
year.
8.10.1 DECISION-MAKING PROCESS
The City will draft and prepare a written
report that discusses the results of the annual
water supply and demand assessment. The
Water Shortage Contingency Plan team will
consist of the City’s Public Works Director and
City’s Engineer. A copy of the annual report
will be submitted to their City Council ahead
of the meeting for review. The Council will
listen to the findings and recommendations
outlined in the report and vote to approve and
implement the actions described in the
annual report at the May City of Port
Hueneme Council meeting.
As of 2022, City staff has reviewed water
production data and water consumption data
starting in January of that year, with the intent
to prepare an Annual Water Shortage
Assessment Report. The Final Report can then
be submitted to DWR by July 1 of each year,
which are shown on DWR’s WUE Portal:
wuedata.water.ca.gov/wsda_plans
Figure 8.1: Sample Annual Assessment Decision-Making Process Timeline Agenda Item No. 10 Page 117 of 142 CC Agenda 06-15-2026 112 2025 URBAN WATER MANAGEMENT PLAN
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Table 8.1 Key Data Inputs
Key Input Data Inputs Description
Projected Water
Demand &
Projected Water
Supply
Public Water
System
Statistics Sheet
(DRW sheet)
The water statistics sheet is prepared by the
City general manager in January for the
previous year. The statistics sheet will be used
to calculate water supply by source and show
unconstrained water demand.
Projected Water
Supply
Well Production
History
Worksheet
This worksheet is prepared by the City general
manager and is updated each year. This
worksheet provides the monthly production
totals in acre feet for each well. This will be
used to help determine water supply reliability.
Existing
Infrastructure
Annual Project
List and Schedule
This list will be prepared by the general
manager and describe all the planned City
projectsforthe year. The annual project list will
be used to assess infrastructure capabilities and
any potential constraints to the water system.
8.10.2 ASSESSMENT METHODOLOGY
The City will enact water shortage response
actions if the available water supply is less
than the estimated demands. A dry year will
be defined as a year where there is a 10‐20%
reduction in the available water supply and
corresponds to a stage 2 water shortage level
in Table 2. The City will take the following
steps to evaluate the water supply and
demand:
1. Evaluate Water Supply: Using the
Public Water System Statistics Sheet for the
past year determine the total amount of
water in acre‐feet available to the City by
source.
2. Calculate Unconstrained Customer
Demand: Using the Public Water System
Statistics Sheet calculate the total water
delivered the previous year.
3. Planned Water Use for Current Year
Considering Dry Year: Compare the available
water supply and the customer demand and
determine if there is an expected water
shortage.
4. Infrastructure Considerations: Using
the Annual Project list and schedule,
determine if any projects will reduce or
increase supply.
5. Compare supply and demand and
decide of the level of water supply reliability
for current year and one dry year, declare a
water shortage level, and issue relevant
communication, if necessary.
The City will start to evaluate the water supply
availability in January and will submit the
report to the DWR in June of each year as
shown in Figure 8.1.
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8.10.3 LOCALLY APPLICABLE EVALUATION
CRITERIA
The locally applicable evaluation criteria that
will be consistently relied on for each Annual
Assessment include the following:
1) Assumed unconstrained demand (i.e.,
demand without any conservation
measures) for current year and one dry
year
2) Assumed total water supply availability
for current year and one dry year
3) Existing infrastructure capabilities and
plausible constraints
• Any known issues with the water
facilities (including water quality
conditions limiting local sources)
• Planned power outages for
operation and maintenance
• New construction and repairs
• Environmental mitigation
measures
• Other constraints that may affect
near-term water supply reliability
8.11 SHORTAGE STAGES AND SHORTAGE
RESPONSE ACTIONS
8.11.1 STAGES OF ACTION
This WSCP establishes six stages of drought
response actions to be implemented in times
of shortage, with increasing restrictions on
water use in response to decreasing supplies.
As mentioned previously, The City’s supply
from PHWA is dependent on UWCD’s
extraction allocation determined by FCGMA.
This means the City and UWCD’s WSCP are
dependent on actions taken by FCGMA.
Shortages overlap stages automatically
triggering the implementation of the more
restrictive Stage. Specific criteria for triggering
the City’s water use reduction stages that are
based on DWR’s established criteria are
shown in Table 8.2.
8.11.2 Shortage Response Actions
Table 8.2 summarizes the restrictions and
prohibitions on end users during each stage of
water shortage responses implemented by
the City in accordance with CWC
§10632(a)(4)(A). The shortage response
actions are aligned to the six water shortage
levels with the goal of reducing the gap
between supply and demand by the required
amount per level.
Table 8.2 Water Shortage Stages & Reduction Targets
Shortage
Stage
Water Supply
Reduction Target
Water Supply
Condition
Mandatory compliance with water
savings measures
I Up to 10% Normal
10% reduction in groundwater allocation
imposed by UWCD or CMWD. Voluntary,
always in place
II Up to 20% Slightly
Restricted
20% reduction in groundwater allocation
imposed by UWCD or CMWD.
Mandatory compliance
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Shortage
Stage
Water Supply
Reduction Target
Water Supply
Condition
Mandatory compliance with water
savings measures
III Up to 30% Moderately
Restricted
30% reduction in groundwater allocation
imposed by UWCD or CMWD.
Mandatory compliance
IV Up to 40% Restricted
40% reduction in groundwater allocation
imposed by UWCD or CMWD.
Mandatory compliance
V Up to 50% Severely
Restricted
50% reduction in groundwater allocation
imposed by UWCD or CMWD.
Mandatory compliance
VI >50% Extremely
Restricted
40% reduction in groundwater allocation
imposed by UWCD or CMWD.
Mandatory compliance
Table 8.3 Restrictions and Prohibitions on End Use
Stage Restrictions and Prohibitions on End
Users
Estimated
Water
Saving
Level
Penalty,
Charge,
or Other
Enforcement
?
1 Education for water conservation methods. Low No
1 Public outreach for voluntary reduction in water
use by 15%
Mediu
m
No
2 Landscape ‐ Restrict or prohibit runoff from
landscape irrigation
Mediu
m
Yes
2 Other ‐ Prohibit use of potable water for washing
hard surfaces
High Yes
2 Other ‐ Shareholders must repair leaks, breaks, and
malfunctions in a
timely manner
High Yes
3 Landscape ‐ Limit landscape irrigation to specific
times
High Yes
3 Water Features ‐ Restrict water use for decorative
water features, such
as fountains
Low Yes
3 Landscape ‐ Prohibit certain types of landscape
irrigation
Mediu
m
Yes
4 CII ‐ Other CII restriction or prohibition Mediu
m
Yes
4 CII ‐ Lodging establishment must offer opt out of
linen service
Low Yes
4 Landscape ‐ Restrict or prohibit runoff from
landscape irrigation
Mediu
m
Yes
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5 Other ‐ Prohibit use of potable water for washing
hard surfaces
High Yes
5 Other ‐ Prohibit vehicle washing except at facilities using recycled or
recirculating water
High Yes
5 Landscape ‐ Limit landscape irrigation to specific
days
High Yes
5 CII ‐ Lodging establishment must offer opt out of
linen service
Low Yes
6 Landscape ‐ Prohibit all landscape irrigation High Yes 6 Other ‐ Prohibit use of potable water for
construction and dust control
High Yes
NOTE: See Appendix B for sources and estimates corresponding to water saving levels.
Table 8.4 Stages of Water Shortage Contingency Plan ‐ Consumption Reduction Methods Stage
Consumption Reduction Methods by
Water Supplier
Estimated
Water
Saving Level
Penalty, Charge, or
Other
Enforcement?
All
Stages
Expand Public Information Campaign Mediu
m
No
1 and 2 Other – Voluntary Water Use Reductions Mediu
m
No
2 Moratorium or Net Zero Demand Increase
on New
Connections
Mediu
m
No
2 Other‐ Establish water allocations Low No
2 Other‐ Enforce water waste ordinance High No
2 Other‐ Evaluate Stage 1 conservation
measures
High No
3 Other – Lower water allocations Low No
4 Other – Disburse water conservation kids Low No
5 and 6 Other – Evaluate Stage 2 conservation
measures
High No
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Figure 8.2: CMWD’s Lake Bard (Potential Reserves for WSCP Allocations) Agenda Item No. 10 Page 122 of 142 CC Agenda 06-15-2026 2025 URBAN WATER MANAGEMENT PLAN
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8.11.3 Operational Changes
In the event of an extreme water shortage the
City will implement some or all of the
following operational changes in accordance
with CWC §10632(a)(4)(C) and §10632.5(a):
• Limits on watering hours
• Limit on water duration
• No excessive water flow or duration
• No washing down hard or paved
surfaces
• Obligation to fix leaks, breaks or
malfunctions
• Re‐circulating water required for
water fountains and decorative water
features
• Limits on washing vehicles
• Drinking water served on request only
• Commercial lodging establishments
must provide guest option to decline daily
linen service
• No installation of non‐re‐circulating
commercial car wash and laundry systems
• Restaurants required to use water
conserving dish wash spray valves
• Commercial car wash system
requirements.
8.11.4 Operational Changes
The City’s customers shall comply to the
mandatory water shortage response actions
listed in Table 2‐3 associated with a level 3 or
higher water shortage event in accordance
with §10632(a)(4)(D. In the event of a water
shortage emergency or severe drought, the
City may enact additional mandatory
restrictions:
• Implement drought water rates.
• Restrict or prohibit the issuance of
new water services.
8.12 DISASTER MANAGEMENT
8.12.1 Emergency Response Plan
A catastrophic event may result in a complete
loss of water supplies for a temporary period
lasting from a day to a week or more.
Examples of catastrophic events include
earthquakes, widespread power outage,
contamination, long‐term drought, or loss of
imported supplies. Through information
included in billing inserts, and information on
its website, the City encourages its
shareholders to be prepared for emergencies
and potential interruption of water supply
system. The City’s employees will be
contacted and activated as per the City’s
emergency response policy. In the event of a
catastrophic emergency the City will
immediately declare and enact level six (6)
water shortage level, shown in Table 8.2.
The UWMP Act requires a catastrophic supply
interruption plan. This plan looks at the
vulnerability of each source and distribution
system to events such as wildfires, flooding,
earthquakes, landslides, rockslides, other
natural disasters, and unforeseen
emergencies. City staff can also coordinate
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with its wholesale supplies, as well as the
County of Ventura. The Ventura County
Operational Area Emergency Operations Plan
- 2021 (EOP) addresses the County of
Ventura’s planned responses to extraordinary
situations and natural, human caused or
technological disasters.
8.12.2 Seismic Risk Assessment and
Mitigation Plan Introduction
Earthquakes can vary significantly in
magnitude and the amount of damage
caused. Major earthquakes can cause loss of
electrical power, damage to the City’s
structures and equipment, disruption of
service, and injuries to staff. This section
provides a description of the City’s
procedures (i.e., response and mitigation)
after an earthquake event.
As mandated in CWC Section 10632.5,
beginning January 1, 2020, water suppliers
are required to include a seismic risk
assessment and mitigation plan as part of
their WSCP to assess the vulnerability of each
of the various facilities of their water system
and mitigate those vulnerabilities. If an urban
water supplier does not have a seismic risk
assessment and mitigation plan, the urban
water supplier may instead, per CWC Section
10632.5(c), include a local hazard mitigation
plan (LHMP) or a multi-hazard mitigation plan.
8.12.3 Ventura County Multi‐Hazard
Mitigation Plan
The City participates in the Ventura County
Multi‐Hazard Mitigation Plan (MHMP) in
Appendix L which was updated and adopted
by Ventura County in 2015. The MHMP
addresses a variety of hazards in the City
including climate change, dam failure, seismic
hazards, landslides, tsunamis and wildfires.
The plan summarizes the impacts of these
hazards on populations, infrastructure and
critical facilities in the City. In the event of an
extreme earthquake, 70% of the City’s
residential buildings would be impacted.
Liquefaction and dam failure inundation that
may occur due to the earthquake would affect
100% of the City’s residential buildings. A
summary of all impacts to the City of Port
Hueneme’s critical facilities is summarized in
Table 8.5.
With respect to the seismic risk assessment
and mitigation plan, the City in in the process
of completing the America’s Water
Infrastructure Act (AWIA) Risk and Resiliency
Assessment of the existing water distribution
system, which assesses seismic risk for the
City’s critical infrastructure.
8.12.4 Faults, Earthquakes and Liquefaction
The City is located in a seismically active belt
that rings the Pacific Ocean. The City’s General
Plan Background Report identifies two main
safety concerns related to faults: 1) surface
rupturing of earth materials along fault traces
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and 2) damage to structures and foundations
due to seismically induced ground shaking.
Fault rupture risk in the City is considered
minimal because no known faults have been
located in the City. Although the probability of
a large seismic event is low, the City could be
affected by nearby faults, such as the Oak
Ridge Fault, Simi Fault, Malibu Coast Fault,
San Cayentano Fault, Santa Susana Fault and
San Andreas Fault (Figure 8.3).
In the event of a seismic activity, the City may
be susceptible to liquefaction and inundation.
Liquefaction potential Is highest in areas
where the depth to groundwater less than 30
to 50 feet. The Oxnard Plain, where the City is
located, has a high groundwater table and is
underlain by several saturated aquifers. This
makes the potential for liquefaction present
throughout the entire region. Inundation is
another risk the City faces due to proximity to
dams. The City could be affected by dam
failure from the Bouquet Canyon Reservoir,
Castaic Reservoir, Pyramid Reservoir, and
Santa Felicia Dam (Lake Piru). Inundation from
dam failure could damage public facilities and
limit evacuation from the City during an
emergency. A liquefaction susceptibility map
is shown in Figure 8.4.
As mentioned earlier, fault rupture risk in the
City is considered minimal because no known
faults have been located in the City. Although
the probability of a large seismic event is low,
the City could be affected by nearby faults,
such as the Oak Ridge Fault, Simi Fault, Malibu
Coast Fault, San Cayentano Fault, Santa
Susana Fault and San Andreas Fault
8.12.5 Mitigation Plan
The Ventura County MHMP addresses
multiple hazards in the City including climate
change, damn failure, seismic hazards,
landslides, tsunamis and wildfires. The plan
summarizes the impacts of these hazards on
populations, infrastructure and critical
facilities in the City.
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Table 8.5 Summary of Impacts from Critical Facilities and Infrastructure Hazard
No. of Critical
Facilities &
Infrastructure
% of Critical Facilities and
Infrastructure
Climate Change ‐ Rising Tide 4 16%
Climate Change ‐ Coastal Storm 5 20%
Dam Failure Inundation 25 100%
Earthquake Ground Shaking ‐ Extreme 10 40%
Earthquake Ground Shaking ‐ Violent 13 52%
Earthquake Ground Shaking ‐ Severe 0 0%
Liquefaction 24 96%
Flood ‐ 100 Year 9 36%
Flood ‐ 500 Year 15 60%
Landslide Susceptibility Class VIII 0 0%
Landslide Susceptibility Class IX 0 0%
Landslide Susceptibility Class X 0 0%
Reduced Flood Risks Due to Levees 0 0%
Tsunami Evacuation Area ‐ Phase 3 5 20%
Tsunami Evacuation Area ‐ Max 5 20%
Wildfire ‐ High 0 0%
Wildfire ‐ Very High 0 0%
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Figure 8.3: Earthquake Fault Line Map
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Figure 8.4: Liquefaction Susceptibility Map
8.13 COMMUNICATION PROTOCOLS
The City will inform customers, the public, and
the necessary local, regional, and state
government entities in regard to any current
or predicted water shortages based on the
results of the Annual Water Supply and
Demand Assessment. The City will also notify
all necessary entities of any shortage
response actions mandated in response to the
Annual Assessment.
In the event of a water shortage due to an
emergency the City will follow emergency
communication protocols outlined in the
Emergency Response Plan as described by
Section 8.12.1.
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Table 8.6 Stages of Water Shortage Contingency Plan – Communication Protocols Stage Communication Protocol and Procedure Recipient to be notified 1 General conservation measures and
resources will be posted on the City’s
website, published in the newsletter. Shareholders and the public 2 Bill stuffers will be distributed to all
customers that inform of the Stage 2 status
and mandatory water shortage response
actions. The Stage 2 water shortage
response actions will be included in the
newsletter and posted on the City’s
website.
Shareholders and the public
3 Bill stuffers will be distributed to all
customers that inform of the Stage 3 status
and mandatory water shortage response
actions. The Stage 3 water shortage
response actions will be included in the
newsletter and posted on the City’s
website.
Shareholders, public, all
government entities
4 Bill stuffers will be distributed to all customers
that inform of the Stage 4 status and
mandatory water shortage response actions.
The Stage 4 water shortage response actions
will be included in the newsletter and posted
on the City’s website. A Public Notice will be
issued to all customers and relevant
government entities.
Shareholders, public, all
government entities
5 Bill stuffers will be distributed to all customers
that inform of the Stage 5 status and
mandatory water shortage response actions.
The Stage 5 water shortage response actions
will be included in the newsletter and posted
on the City’s website. A Public Notice will be
issued to all customers and relevant
government entities.
Shareholders, public, all
government entities
6 Bill stuffers will be distributed to all customers
that inform of the Stage 6 status and
mandatory water shortage response actions.
The Stage VI water shortage response actions
will be included in the newsletter and posted
Shareholders, public, all
government entities
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Stage Communication Protocol and Procedure Recipient to be notified on the City’s website. A Public Notice will be
issued to all customers and relevant
government entities.
Table 8.7 Excessive Water Use Penalties and Charges
Stage Violation Notices and
Surcharges
1 1st Written and oral notice (door hanger and follow‐up call) identifying the nature of violation
1 2nd
The second violation within the preceding twelve months will result by a fine not to exceed one hundred dollars ($100) or as established by Resolution of the City Council
1 3rd
The third violation within the preceding twelve months will result by a fine not to exceed two hundred fifty dollars ($250) or as established by Resolution of the City Council
1 4th and
Subsequent
The fourth and subsequent violations within the preceding twelve months will result in a fine not to exceed five hundred dollars ($500) or as established by Resolution of the City Council. In addition to any fines, the City may install a service water flow restrictor device for a minimum of forty eight (48) hours or terminate a customer’s water service.
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8.13.1 Compliance and Enforcement
The following compliance and enforcement
actions to be taken by City under a declared
water shortage condition were developed in
accordance with CWC §10632(a)(6).
The City’s Council may impose a special
water waste surcharge against a
shareholder’s account and may temporarily
or permanently discontinue or restrict, with
a flow regulating device, water service to the
affected property in the event that the
shareholder or political entity is found by the
City Council to be in violation of any
restrictions or prohibitions under a water
shortage mandate declared by the City
Council.
Before taking such actions, City Council shall
give any such shareholder thirty (30) days
written notice and an opportunity to be
heard and protest the finding of such
violation and the imposition of such
measure.
The City's prohibitions on water use during
all water supply shortage levels (Levels 1 to
3) are provided in the City’s Ordinance No.
698 (see Appendix A). Additionally, the
ordinance outlines the steps for citizens to
apply for waivers in the event of a unique,
disproportionate hardship. Violation of the
regulations and restrictions on water use in
accordance with Ordinance No. 1618 will
result in penalties punishable by fees and
additional water restrictions summarized in
Table 6‐1.
8.13.2 FINANCIAL CONSEQUENCES OF
WSCP IMPLEMENTATION
The City recognizes that there are additional
operating expenses associated with the
various water shortage condition stages
including, but not limited to: the hiring of a
part‐time water conservation technician;
additional outreach and education;
additional state reporting; additional
monitoring of water use to gage the
effectiveness of compliance efforts;
responding to shareholder inquiries and
complaints; investigating and monitoring of
violations of watering restrictions and
prohibitions; and increased facilities,
pumping, and utility costs. In addition, water
sales revenues will decrease due to lower
water use by the City’s shareholders.
The City has established water rates that
allow reasonable operating reserves to be
maintained. These reserves are reviewed by
the City Council in a monthly financial report.
If projection indicate a depleting of these
reserves, the Council has sole discretion on
adjusting water rates. In addition, the
Council has and will adopt drought water
rates to encourage conservation and offset
revenue declines. To offset increased
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expenses, non‐critical capital investments
may be deferred.
8.14 MONITORING AND REPORTING
The City will monitor, analyze and report on
water production and use data in
accordance with CWC §10632(a)(9).
The City is fully metered for all customers,
including separate meters for single family
residences, multi‐family residences,
commercial, industrial, large landscapes,
and all institutional/governmental facilities.
The City uses the water meters to determine
the consumption of water throughout the
service area.
Under all water supply conditions, potable
water production figures are recorded daily
by Water Treatment Operators. Totals are
reported weekly to the assigned personnel.
The assigned personnel and Chief Operator
incorporates the information into a monthly
water supply /demand report to the Council.
During a Stage 1 or Stage 2 water shortage,
the assigned personnel compares the
monthly production to the target monthly
production to verify that the reduction goal
is being met. The assigned personnel
presents monthly reports to the Council. If
reduction goals are not met, the assigned
personnel will notify the Council so that
corrective action can be taken.
During a Stage 3 water shortage or Stage 4,
the procedure listed above are followed,
with the addition of a bi‐monthly production
report to the Council.
During a Stage 5, 6, or an emergency event,
reports will also be provided weekly to the
Council. During emergency shortages,
production figures are reported to the
General Manager regularly or as needed.
8.15 WSCP ADOPTION AND REFINEMENT
PROCEDURES
8.15.1 Council Resolution
On June 15, 2026, the City Council adopted
Resolution No. 2026-## (included in
Appendix B) approving this WSCP. Table 8.2
provides a summary of the response actions
to the water shortage stages listed in Table
8.2. 8.15.2 WSCP Refinement Procedures
The City intends to update and refine this
WSCP, as necessary. The WSCP can be
updated in one of the following ways:
• Cyclical Updates
• Data-Driven Updates
• Externally-Driven Updates
The following is a guideline for how the City
will update this WSCP.
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8.15.3 Cyclical Updates
The cyclical updates will be handled by City
staff internally with the assistance of an
outside engineering consultant. Once the
WSCP is implemented, the City will
document the effectiveness of the response
actions listed in Table 8.2. The effectiveness
will be evaluated using the methodologies
described in Section 8.14. The WSCP
effectiveness will be documented over the
course of five (5) years, until the next UWMP
update. It is the City’s intent to update the
WSCP every five (5) years, along with the
City’s UWMP. The City will conduct an
internal review of the WSCP prior to
releasing a Request for Proposals (RFP) for
the UWMP and WSCP. The RFP process will
provide the City with an opportunity to
revise the WSCP as needed.
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8.15.4 Data-Driven Updates
Data-driven updates to the WSCP will occur
mid-cycle or at some point between the 5-
year cycle. The data-driven updates can be
prepared entirely by City staff (internally)
due to the urgency of such updates. For
example, if the City finds that the
communication protocols covered under
Section 8.13 are not effective during times
of emergencies, the City may adjust the
existing approach, and revise Section 8.13
accordingly. Other items of this WSCP can be
updated in a similar manner.
8.15.5 Externally-Driven Updates
Conversely, if the communication protocols
are found by the City’s customers to be too
punitive, and Council is requested to adjust,
the City can revise Section 8.13 to reflect the
new communication protocols. Other items
of this WSCP can be updated in like manner.
8.15.6 WSCP Re-Adoption
Once the WSCP is revised, the Board of
Directors will be required to re-adopt the
revised WSCP. This will require a public
hearing to receive public comments on the
WSCP. The revised WSCP will replace the
former WSCP, and will then remain effective
until the City elects to update the WSCP
A WSCP previously submitted in 2020 or
later may be reused; however, it must first
be reviewed, and if no updates are needed,
it can be readopted as is. It must be indicated
in the UWMP that a review was conducted
and that a previous WSCP is being
readopted. Even when no changes are made,
the WSCP must undergo a new review and
adoption process as part of the 2025 UWMP
document. Section 7 of the 2025 UWMP
may be used as a reference to the readopted WSCP.
The City specifically distinguishes between
“Decorative Water Features” and all other
water features in the WSCP. In the event of
a water shortage potable water use for
decorative water features such as fountains
is prohibited, and only re‐circulated water
can be used to operate ornamental
fountains or other decorative water
features.
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9 9.5 OVERVIEW
As a result of diminished existing supplies
and difficulty in developing new supplies,
water conservation is important to Southern
California’s sustainability. In Water Year
2018- 2019, Governor Brown signed SB 606
and AB 1668 into law. The legislation
required DWR, the State Water Resources
Control Board (SWRCB), and three other
state agencies to develop a long-term water
conservation framework to “make
conservation a California way of life.” In
order to conform to the Water Action Plan,
including meeting the SBx7-7 target (20
percent by 2020), many water agencies had
to re-examine traditional conservation
programs.
The City acknowledges that efficient water
use is the foundation of its current and
future water planning and operations
policies. The City implements water
conservation through a combination of
programs, resources, and policies, and
prioritizes efforts and programs that are
cost-effective for its operation. To assist the
City with updating its water conservation
policies to State standards, in 2012 the City
became a signatory to the California Urban
Water Conservation Council (CUWCC) by
signing the Memorandum of Understanding
Regarding Urban Water Conservation
(MOU), originally drafted in 1991. In January
2018, the CUWCC became the California
Water Efficiency Partnership (CalWEP).
CalWEP is a quasi-governmental agency that
works in conjunction with the Department of
9 Section 9:
Conservation
Measures
Conservation
measures are an
essential part of
the Agency’s
policies.
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Water Resources (DWR) to promote water
conservation through “Best Management
Practices” (BMPs), which were defined
roughly as policies, programs, practices,
rules, regulations, or ordinances that
resulted in a more efficient use or
conservation of water.
The main purpose of CalWEP is to assist its
member agencies with public policy,
research, and education tools. Regarding the
UWMPs, CalWEP works with DWR to help
form conservation policies contained in the
UWMPs. In previous UWMPs, BMPs were
equivalent to the fourteen (14) Demand
Management Measures (DMMs) defined in
the UWMP Act. As of the 2015 UWMPs, DWR
streamlined the 14 DMMs into six (6)
generalized categories, with an additional
seventh (7th) optional category.
9.6 DWR DMMs FOR 2025 UWMPs
The 2025 UWMP Guidebook continues the
same DMM categories for the 2025 UWMPs.
The DMMs are intended to reduce long-term
urban demands from what they would have
been without their implementation. The
DMMs are in addition to programs which
may be instituted during occasional water
supply shortages.
i. Water Waste Prevention Ordinances
ii. Metering
iii. Conservation Pricing
iv. Public Education & Outreach
v. Programs to Assess and Manage
Distribution System Real Loss
vi. Water Conservation Program
Coordination and Staffing Support
vii. Other Demand Management
Measures that have a significant
impact on water use
As with previous UWMPs, agencies that are
members of CalWEP can submit the BMP
annual reports in lieu of providing a
description of each DMM in the UWMP.
9.7 CalWEP BMPs
An active member of the CalWEP is one that
signs the MOU and implements the water
conservation measures stipulated by the
CalWEP. According to CalWEP, an agency
“implements” a conservation measure by
achieving and maintaining the level of
Figure 9.1 CUWCC became CalWEP in January
2018
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Figure 9.2 Non-Functional Turf Removal Conserve Water
activity called for in each BMP's definition as
described in the MOU. This requires a
minimum level of staffing and funding
efforts. To document the implementation,
an agency is required to submit annual BMP
reports to CalWEP that document the
implementation of each BMP.
9.7.1 2025 Updates to CalWEP BMPs
The CalWEP BMPs remain the same for the
2025 UWMPs. The CalWEP BMPs are broad
measures aimed at reducing water use
either directly or indirectly. Figure 9.3
provides a comparison of the DWR and
CalWEP conservation measures. As noted in
the figure, there are two (2) distinct
categories of conservation measures(rebates
& services). The services category
(highlighted in blue and green in Figure 9.3),
includes conservation measures that are
currently active in the City.
9.8 CITY CONSERVATION MEASURES
The City is currently a member of CalWEP
and is currently implementing BMP
reporting and implementation requirements
as described in this Section.
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Figure 9.3 Conservation Measures for 2025 UWMPs: CalWEP and DWR Compared 2025 UWMP
Conservation Measures
CalWEP BMPs
BMP 1: Utility Operations
BMP 2: Education
BMP 3: Residential
BMP 4: Landscape
BMP 5: CII Programs
CA Water Code
Requirements
Water Code § 10631(B)
i.
Water Waste Prevention
Ordinances
ii.
Metering
iii.
Conservation Pricing
iv.
Public Education &
Outreach
vi.
Water Conservation
Program
v.
Water Loss Programs
SERVICES
(ACTIVE MEASURES)
REBATE
S
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9.8.1 DMM No. 2: Metering
As the Agency’s system is fully metered.
Meters are changed out asthey age as part of
the Agency’s maintenance program. A
regular calibration program is in place to
ensure meters are operating within
acceptable ranges of accuracy forthe specific
type of meter.
Figure 9.4 Water Meter with AMI Technology
9.8.2 DMM No. 4: Public Education &
Outreach
The Agency initiated discussions with its
retailers in 2010 to determine the most
effective way that the Agency can provide
outreach support. To date, the Agency has
provided conservation materials supplied by
CMWD and MWD. The Agency began
discussions in 2010 with the City and CIBCSD
on implementing outreach and educational
programs in schools. The Agency continues
to work with its retailers, including MWD
and CMWD to identify opportunities to
support retailer conservation efforts.
9.8.3 DMM No. 6: Water Conservation
Program Coordination and Staffing
Support
The Agency recognizes the importance of
conserving water and supports its retail
purveyors in the development and
implementation of conservation programs
that achieve measurable savings. As
described in Section 1, the Agency was
established in 1994 as strictly an
administrative entity to facilitate better
management of the sub-regional water
supplies, including use of SWP water. In
November 1995, the Agency adopted the
Water Efficiency Guidelines for Annexation
No. 32 to the CMWD and the MWD. The
guidelines describe the arrangements
between the agencies relative to receiving
State water including:
1) Annual Water Usage
2) Calleguas Water Management
Peak Water Usage
3) Lake Bard
4) Seasonal Storage
5) High and Low Flow Penalties
6) Local Area Management
7) Water Conservation
8) Use of Reclaimed Water
9) Water Delivery Curtailment
10) Capital Construction Charge
11) Urban Conservation Best
Management Practices
12) Water Use Efficiency Guidelines
13) Compliance
Agenda Item No. 10 Page 139 of 142 CC Agenda 06-15-2026 134 2025 URBAN WATER MANAGEMENT PLAN
CITY OF PORT HUENEME
2025 URBAN WATER MANAGEMENT PLAN
The Agency has no employees and no
physical access to or control of water or
water distribution infrastructure. To the
extent feasible, given these constraints, the
Agency plans to continue to support its
retailers’ conservation, outreach, and
education programs. Currently, the Agency
works closely with the City of Port Hueneme
and collaborates with CMWD and MWD in
conservation outreach efforts. It has also
reached out to NBVC to discuss conservation
(as a federal agency, however, the Naval
Base is not obligated to meet state
conservation requirements).
9.8.4 Updates on Conservation Programs
Since 2020 UWMP
The Agency continues to expand its water
conservation programs focusing on demand
reduction and customer education. Since the
2020 UWMP the City has promoted the use
of high efficiency fixtures and turf
conversion through MWD’s Be Water Wise
program. In addition, the Agency maintains
public education resources focused on
reducing outdoor irrigation demand and
encouraging efficient water use practices
during both normal and drought conditions.
In 2024 the Agency’s updated its Landscape
Ordinance and Landscape Design Guidelines
took effect, replacing the outdated policies
from 1993. The new policy encourages the
replacement of landscaping with native and
drought tolerant vegetation and the use of
drip irrigation and smart irrigation
controllers.
The Channel Islands Beach Community
Services District (CIBCSD) water
conservation efforts have mainly focused on
customer education and awareness.
9.8.5 DMM No. 7: Other Conservation
Measures
PHWA has no other demand management
measures to report.
9.8.6 Asset Management
PHWA’s existing operations and
maintenance activities include a valve
exercise program, replacement of blind
flanges, and meter change-outs. PHWA also
performs recommended maintenance of
treatment equipment.
9.8.7 Wholesale Supplier Assistance
Programs
The Agency is working with the City of Port
Hueneme and CIBCSD to develop and
implement conservation programs and
identify opportunities for support and
collaboration. Two of the largest customers
in the service area are federally owned and
subject to federal facilities requirements for
water conservation. The Agency has initiated
discussions with the NBVC to identify
potential conservation opportunities.
Agenda Item No. 10 Page 140 of 142 CC Agenda 06-15-2026 2025 URBAN WATER MANAGEMENT PLAN
CITY OF PORT HUENEME
135
URBAN WATER MANAGEMENT PLAN 2025
The Agency is strictly an administrative
agency, therefore it does not have access to
water or water distribution facilities to
evaluate or implement water loss control
procedures. This function is addressed by
the Agency’s retailers individually. However,
the Agency does monitor and evaluate water
loss control for its own wholesale
distribution facilities.
9.9 CONTINUED IMPLEMENTATION
The Agency provides public education and
outreach to its retailers and works with the
City of Port Hueneme to manage water
conservation programs.
Agenda Item No. 10 Page 141 of 142 CC Agenda 06-15-2026 Agenda Item No. 10 Page 142 of 142 CC Agenda 06-15-2026 DATE: June 15, 2026
TO: Honorable City Council
FROM: James Vega, City Manager
Brian Popovich, Management Analyst
SUBJECT: DISCUSSION OF PROPOSED SHORT-TERM RENTAL REGULATIONS
AND DIRECTION REGARDING A REVISED ORDINANCE
RECOMMENDATION:
It is recommended that the City Council discuss the proposed short-term rental regulatory framework, with particular focus on posting and notification requirements, and provide direction to staff regarding any desired revisions to be incorporated into a revised shortterm rental ordinance for future consideration.
BACKGROUND/ANALYSIS:
In October 2024, the City received complaints and inquiries regarding short-term rentals and the lack of regulations governing them. At the January 6, 2025 City Council meeting, the Council requested a future discussion regarding short-term rentals and potential regulatory options.
On February 18, 2025, staff presented an overview of short-term rental activity and regulatory approaches used by nearby jurisdictions. Following that discussion, the City Council directed staff to conduct additional community engagement. Staff subsequently conducted an online survey and hosted a community forum at City Hall on June 25, 2025.
At its August 18, 2025 meeting, the City Council received the results of the survey and community forum and directed staff to prepare a moderate regulatory framework intended to balance neighborhood livability with opportunities for homeowners to participate in the short-term rental market.
A draft ordinance was subsequently prepared and presented to the City Council for consideration. The draft ordinance included several components intended to address neighborhood impacts, including permit requirements, business licensing, occupancy standards, parking requirements, quiet hours, nuisance response requirements, local contact requirements, Transient Occupancy Tax compliance measures, enforcement provisions, permit revocation procedures, a citywide permit cap, exterior posting Agenda Item No. 11 Page 1 of 11 CC Agenda 06-15-2026
Short-Term Rental Discussion
June 15, 2026
requirements, and separation requirements intended to prevent overconcentration of short-term rentals in specific neighborhoods.
At the November 17, 2025 meeting, the City Council continued the public hearing, received additional public testimony, and discussed several components of the proposed ordinance. Following discussion, the City Council directed staff to return with a revised ordinance that would amend the proposed posting requirement and remove the proposed separation requirement. As a result, the ordinance was not introduced at that meeting in order to allow further discussion regarding those provisions and any other potential modifications prior to consideration of introduction.
This item returns as a Business Item rather than a public hearing in order to receive policy direction from the City Council regarding potential alternatives to the posting requirement before staff prepares a revised ordinance for future consideration. The revised ordinance will also remove the previously proposed separation requirement, consistent with Council direction provided on November 17, 2025. Because the ordinance has not yet been introduced, the City Council may also provide direction regarding any other aspect of the proposed regulatory framework prior to preparation of a revised ordinance and future public hearing.
Previously Proposed Ordinance Overview
The draft ordinance previously proposed by the City Council (Attachment A) would establish a comprehensive regulatory framework for short-term rentals within the City of Port Hueneme. The proposed framework is intended to balance neighborhood livability with opportunities for homeowners to participate in the short-term rental market while ensuring compliance with local regulations and Transient Occupancy Tax requirements.
The draft ordinance would require all short-term rental operators to obtain an annual City permit and business license prior to operation. The ordinance includes operating standards intended to address common neighborhood concerns, including occupancy limits, parking requirements, quiet hours, trash management requirements, and nuisance response procedures. The proposed framework also requires operators to maintain a responsible local contact who can respond to complaints and issues associated with the rental.
The draft ordinance further includes provisions related to permit administration, enforcement, permit suspension and revocation, and compliance with the City's Transient Occupancy Tax requirements. The ordinance also proposes a 10% citywide permit cap intended to prevent an overconcentration of short-term rentals while preserving opportunities for visitor-serving accommodations throughout the community.
Consistent with direction provided on November 17, 2025, staff intends to remove the proposed separation requirement from the draft ordinance. The primary purpose of this discussion is to receive direction regarding alternatives to the posting requirement; however, because the ordinance has not yet been introduced, the City Council may also provide direction regarding any other components of the proposed regulatory framework prior to preparation of a revised ordinance.
Agenda Item No. 11 Page 2 of 11 CC Agenda 06-15-2026
Short-Term Rental Discussion
June 15, 2026
Posting and Notification Requirement Options
The original draft ordinance included a requirement that each short-term rental display permit information, house rules, and local contact information on the exterior of the property. The purpose of the requirement was to provide nearby residents with immediate access to a responsible contact person in the event of noise, parking, trash, or other nuisance-related concerns.
Staff has reviewed short-term rental regulations from jurisdictions throughout California and identified several alternative approaches that may achieve similar objectives while addressing concerns raised by the City Council and members of the public.
Option A – Modified Exterior Posting Requirement
Under this option, the ordinance would continue to require exterior posting of information, but the requirement would be simplified from the original proposal. The posting could be limited to the permit number, and a twenty-four-hour local contact telephone number. This approach provides immediate access to contact information for neighboring residents while reducing the amount of information displayed on the property.
Option B – Neighbor Notification Requirement
Exterior signage would not be required with this option. Instead, operators would be required to notify nearby property owners and occupants when a short-term rental permit is approved.
One example of this approach is found in the City of Simi Valley's recent short-term rental ordinance where operators of un-hosted short-term rentals are required to notify property owners and occupants located within 200 feet of an approved short-term rental and provide information regarding the nuisance response plan and local contact information.
A Port Hueneme notification requirement could require mailing or delivery of notice to surrounding properties within a specified distance, along with local contact information, nuisance response procedures, and information regarding how complaints may be submitted to the City. This approach eliminates exterior signage while ensuring nearby residents receive contact information directly.
Option C – Permit Placard with QR Code
Short-term rental operators would be required to display a small City-issued permit placard in a visible location on the property. Rather than displaying personal contact information, the placard would contain the short-term rental permit number and a QR code.
When scanned, the QR code would direct users to a City-maintained webpage containing the approved nuisance response plan, the name and telephone number of the responsible local contact or emergency contact person, and any additional information deemed appropriate by the City.
This approach provides neighboring residents with access to important contact and complaint information while avoiding the need to publicly display personal phone numbers Agenda Item No. 11 Page 3 of 11 CC Agenda 06-15-2026
Short-Term Rental Discussion
June 15, 2026
on the exterior of a residence. It also allows information to be updated electronically without replacing signage and provides a consistent format for all permitted short-term rentals.
Additional Council Discussion
In addition to posting and notification requirements, the City Council may provide direction regarding any other aspect of the proposed short-term rental ordinance. Any additional revisions identified by the City Council will be incorporated into a revised draft ordinance and presented at a future public hearing.
FISCAL IMPACT:
There is no immediate fiscal impact associated with this discussion item. Any costs associated with notification requirements or other modifications directed by the City Council would be evaluated and incorporated into the proposed short-term rental permit program as appropriate.
STRATEGIC PLAN:
Primary Strategic Pillar(s) and Initiative(s):
Optimal Levels of Service for Residents and Businesses
• Increase communication, outreach and proactive engagement of all members of our population
Fiscal & Economic Excellence
• Explore the value of City rebranding as a strategy to attract tourism and increase economic investment
ATTACHMENTS:
A. Previously Proposed Short-Term Rental Ordinance
Agenda Item No. 11 Page 4 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 1 of 7
ORDINANCE NO. XXX
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF PORT HUENEME, CALIFORNIA, ADDING ARTICLE V, CHAPTER 10 OF THE PORT HUENEME
MUNICIPAL CODE PERTAINING TO SHORT-TERM RENTALS
WHEREAS, the City recognizes that short-term rentals have become an increasingly common use of residential properties through online platforms such as Airbnb and Vrbo; and WHEREAS, short-term rentals can provide economic benefits, visitor accommodations, and support local tourism, but may also create potential impacts related to noise, parking, trash and neighborhood character; and
WHEREAS, the Council directed staff on August 18, 2025, to prepare a “moderate regulatory framework” establishing a balanced program that allows short-term rentals to operate with reasonable limitations and clear enforcement mechanisms; and WHEREAS, this Ordinance establishes a permitting process, operational standards, nuisance-response requirements, density and spacing limits, and enforcement provisions designed to protect neighborhood livability as well as maintain a level playing field among lodging providers; and
WHEREAS, the Council finds that these regulations are necessary to protect the public health, safety, and welfare by ensuring short-term rentals operate responsibly and contribute fairly to the community through transient occupancy tax and permit fees.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF PORT HUENEME, CALIFORNIA, DOES HEREBY ORDAIN AS FOLLOWS:
SECTION 1: RECITALS AND FINDINGS. The above recitals are all true and correct.
SECTION 2: ADOPTION OF ARTICLE V, CHAPTER 10. Article V, Chapter 10, Short-Term Rentals, commencing with Section 5661 is hereby adopted within the Port Hueneme Municipal Code as follows:
Section 5661 Purpose
The purpose of this Chapter is to regulate the use of residential dwellings as short-term rentals, to preserve the residential character of neighborhoods, minimize adverse impacts related to noise, parking, trash, and overcrowding, ensure fair contribution to public services through taxes and fees, and provide a balanced regulatory framework consistent with the California Coastal Act.
Section 5662 Definitions
For purposes of this Chapter, the following definitions shall apply:
(a) Short-Term Rental (STR): The rental of a dwelling unit, or any portion thereof, for occupancy of fewer than thirty (30) consecutive calendar days. (b) Owner: The individual or entity that has legal title or control of the property. (c) Operator: The owner or other responsible person who holds a valid short-term rental permit and is legally responsible for compliance with this Chapter. (d) Dwelling Unit: A single unit providing complete independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking, and sanitation.
Attachment A
Agenda Item No. 11 Page 5 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 2 of 7
(e) Guest: Any person renting, occupying, or otherwise using a short-term rental for lodging or sleeping purposes, including invitees and occupants other than the operator or local contact person.
(f) Local Contact Person: A person designated by the operator who is available twenty-four (24) hours per day and capable of responding to complaints within the required timeframes.
(g) Rent: Any form of monetary or non-monetary consideration, including but not limited to payment, fee, service, credit, gift, exchange, or donation, whether paid directly or indirectly, received by the owner, operator, or any person acting on their behalf, in return for the occupancy or use of a dwelling unit, or any portion thereof, as a short-term rental.
(h) Nuisance Response Plan: A City-approved plan describing measures to prevent and address potential nuisances including noise, parking, trash, and disorderly conduct, and outlining procedures for timely complaint response.
Section 5663 Permit Requirements
(a) No person shall operate a short-term rental without first obtaining a short-term rental permit issued by the City.
(b) A valid City business license and registration certificate for collection of transient occupancy tax (TOT) are required in addition to the permit. (c) Permits shall be issued for one (1) year, are non-transferable, and shall expire upon transfer of ownership.
(d) Renewal of a short-term rental permit may be denied if the operator has accrued three (3) or more verified violations within the preceding twelve (12) months, failed to pay required Transient Occupancy Tax, or otherwise failed to maintain good standing with the City. If a permit expires, the request for a permit would be treated as a new permit subject to any established waiting list. (e) The City may require an inspection or updated Nuisance Response Plan prior to renewal to ensure continued compliance.
Section 5664 Application Requirements
An application for a short-term rental permit shall include:
(a) Completed application form and payment of an annual fee of nine hundred ninetyfive dollars ($995). (b) Proof of ownership or notarized authorization from the property owner. (c) Floor plan identifying the number of bedrooms and a site plan showing available parking spaces and trash storage areas.
(d) Identification of the local contact person, including name, address, email address, and phone number.
(e) Applicants must provide proof of property liability insurance for the short-term rental unit.
(f) A nuisance response plan addressing how the operator will mitigate potential noise, trash, and parking issues.
Section 5665 Operating Standards
(a) Occupancy shall be limited to two (2) persons per bedroom plus two (2) additional persons, not to exceed ten (10) persons in any dwelling. (b) Quiet hours shall be observed daily between 10:00 p.m. and 7:00 a.m. (c) Operators shall maintain sufficient off-street parking for short-term rental use. One (1) off-street parking space shall be required for a short-term rental consisting of a single bedroom, and two (2) or more off-street parking spaces shall be required for Agenda Item No. 11 Page 6 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 3 of 7
a short-term rental consisting of two (2) or more bedrooms. Garages and driveways shall be made available for guest use and may be counted toward required spaces. Tandem parking may be permitted provided it does not obstruct sidewalks, driveways, or fire access.
(d) Trash shall be stored in proper containers and placed for collection only in accordance with the City schedules. Instructions shall be posted inside the unit. (e) House rules, occupancy limits, quiet hours, trash instructions, parking requirements, permit number, and local contact information shall be posted conspicuously inside the dwelling within six (6) feet of the main entrance. (f) Exterior display of contact information, house rules, and valid City permit number for neighbor reporting shall be required. Such display shall be visible from the public right-of-way and include the 24-hour contact phone number of the local contact person, the City-issued permit number, a summary of house rules addressing noise, parking, and occupancy limits, and instructions for neighbors on how to report disturbances or violations.
(g) Each short-term rental shall have a minimum stay requirement of at least one (1) consecutive night. The City Council may, by resolution, adjust the minimum stay requirement if warranted to address community impacts or California Coastal Commission certification conditions. Nothing in this subsection shall prohibit an operator from imposing a longer minimum stay.
(h) Short-term rentals shall not host events, weddings, or other commercial gatherings that exceed permitted occupancy.
(i) Operators shall maintain functional smoke detectors, fire extinguishers, and comply with all applicable building and fire codes.
(j) Short-term rentals shall not be operated in accessory dwelling units (ADUs), affordable housing units, or mobile homes.
Section 5666 Nuisance Response Plan
(a) Each operator shall submit and adhere to a Nuisance Response Plan approved by the City Manager or designee.
(b) The plan shall, at a minimum, include:
1. Procedures for responding to noise, parking, trash, or disorderly conduct complaints within the timeframes specified in Section 5667;
2. Contact information for the owner, operator, and local contact person;
3. A method for guests to be informed of neighborhood expectations, including delivery of written “Good Neighbor Guidelines” to all guests upon arrival;
4. Procedures for monitoring guest compliance with occupancy and parking limits;
5. Actions the operator will take to prevent recurrence of violations, including guest eviction procedures where appropriate; and
6. A statement acknowledging that repeated nuisance activity may result in permit suspension or revocation.
(c) Failure to adhere to the approved Nuisance Response Plan shall constitute a violation of this Chapter and may result in suspension or revocation of the shortterm rental permit.
Section 5667 Complaint Response
(a) The local contact person shall acknowledge complaints within fifteen (15) minutes during quiet hours and within thirty (30) minutes at other times.
Agenda Item No. 11 Page 7 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 4 of 7
(b) The local contact person shall appear on-site within thirty (30) minutes during quiet hours and within sixty (60) minutes at other times if necessary to resolve complaints.
(c) The local contact person must maintain a physical residence or business address within thirty (30) miles of the City of Port Hueneme.
(d) Operators shall maintain a complaint log, documenting the date, time, nature of complaint, response time, and resolution, and provide copies to the City upon request. Failure to maintain or produce the complaint log upon request shall be deemed a violation subject to administrative citation.
Section 5668 Density Cap
The purpose of this cap is to prevent over-concentration of short-term rentals and preserve the availability of long-term housing consistent with the City’s General Plan and Coastal Act policies.
(a) The number of short-term rental permits issued by the City shall not exceed ten percent (10%) of the City’s total housing units.
(b) If applications exceed the allowable cap, the City shall allocate permits by lottery. (c) To prevent over-concentration, the City shall also apply the separation requirements established in Section 5-10.109 of this Chapter, subject to review and approval by the California Coastal Commission where applicable.
Section 5669 Separation Requirement
(a) No short-term rental shall be issued a permit when a short-term rental permit has already been issued to another property that is either:
1. within one hundred (100) horizontal feet of the proposed short-term rental in the R-2 or R-3 zones; or
2. within two hundred (200) horizontal feet of the proposed short-term rental in the R-1 zone or any other residential or mixed-use zone. (b) The one hundred (100) foot and two hundred (200) foot separations shall be measured horizontally from all parcel lines of property ownership as established by the legal description for the property on record with the County of Ventura. (c) Notwithstanding any language in this subsection to the contrary, the one hundred (100) foot and two hundred (200) foot separation requirements shall not apply to a dwelling unit within a multi-unit development:
1. That is subject to the Vacation Ownership and Time-share Act of 2004 (Cal.
Bus. & Prof. Code, Section 11210 et seq.); and
2. That became subject to the Vacation Ownership and Time-share Act of 2004 on or before January 1, 2019.
(d) The City Manager or designee may grant a waiver from the separation requirement for properties divided by major streets, waterways, or nonresidential parcels, provided such exception will not contribute to over-concentration or nuisance conditions.
Section 5670 Inspections and Monitoring
(a) Complaint-based inspections may occur at any time during the permit term. (b) The City may contract with a third-party compliance monitoring service to identify unpermitted short-term rentals, track listings, and verify TOT collection.
Section 5671 Enforcement and Penalties
(a) Violations of this Chapter are subject to administrative fines, suspension, or revocation of the permit.
Agenda Item No. 11 Page 8 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 5 of 7
(b) Three (3) substantiated violations within a twenty-four (24) month period may result in permit revocation. A former permittee whose permit was revoked shall not reapply for twelve (12) months following the effective date of revocation. (c) Each day of continued violation constitutes a separate offense. (d) Operation of a short-term rental without a valid permit shall constitute a misdemeanor offense.
Section 5672 Fees
(a) The annual permit fee shall be nine hundred ninety-five dollars ($995). (b) All operators shall remit transient occupancy tax in accordance with Article II, Chapter 7, Part B of the Port Hueneme Municipal Code.
(c) Fees and TOT revenues shall be used to fund program administration, inspection, complaint response, and enforcement activities.
(d) The City may amend the permit fee by resolution as necessary to recover costs associated with program administration.
Section 5674 Recordkeeping
(a) Operators shall maintain records of all rental transactions, including guest names, dates of stay, rent collected, and TOT remitted, for a period of three (3) years. (b) Records shall be furnished to the City within five (5) business days upon request.
Section 5675 Appeals
Any person aggrieved by a decision of the City Manager or designee may appeal such decision in writing to the City Council within ten (10) calendar days of the decision. The City Council’s decision shall be final.
Section 5676 Severability
If any section, subsection, clause, or phrase of this chapter is declared invalid, the remainder shall continue in full force and effect.
Section 5677 Coastal Zone Applicability
This ordinance shall not become effective within the Coastal Zone until it has been certified by the California Coastal Commission pursuant to the California Coastal Act.
SECTION 3: ENVIRONMENTAL REVIEW. The Council exercises its independent judgment and finds that the proposed ordinance is not subject to California Environmental Quality Act (CEQA) pursuant to Section 16060(c)(2) (the activity will not result in a direct or reasonably foreseeable indirect physical change in the environment), and Section 15060(c)(3) (the activity is not a project as defined in Section 15378) of the CEQA guidelines, California Code of Regulations, Title 14, Chapter 3, because the proposed ordinance has no potential for resulting in any significant physical change to the environment, either directly or indirectly.
SECTION 4: ENFORCEABILITY. Repeal of any provision of the Port Hueneme Municipal Code does not affect any penalty, forfeiture, or liability incurred before, or preclude prosecution and imposition of penalties for any violation occurring before this Ordinance’s effective date. Any such repealed part will remain in full force and effect for sustaining action or prosecuting violations occurring before the effective date of this Ordinance.
SECTION 5: SEVERABILITY. If any section, subsection, sentence, clause, phrase, or portion of this Chapter is held to be invalid or unconstitutional by any court of competent jurisdiction for any reason, such decision shall not affect the validity of the remaining portions of this Chapter. The Agenda Item No. 11 Page 9 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 6 of 7
Council declares that it would have adopted each section, subsection, sentence, clause, phrase, or portion of this Chapter irrespective of whether one or more sections, subsections, sentences, clauses, phrases, or portions of this Chapter be declared invalid or unconstitutional.
SECTION 6: EFFECTIVE DATE. This Ordinance shall take effect thirty (30) days after its final passage.
SECTION 7: COASTAL ZONE CERTIFICATION. This Ordinance shall not become effective within the Coastal Zone until it has been certified by the California Coastal Commission pursuant to the California Coastal Act.
SECTION 8: CERTIFICATION. The City Clerk of the City is hereby directed to certify to the passage an adoption of this Ordinance and to cause it to be published as required by law.
PASSED and ADOPTED on this ___ day of 2025.
Martha R. McQueen-Leoghn
Mayor
ATTEST:
________________________________
Georgianna Nicole Alvarez
City Clerk
APPROVED AS TO FORM:
________________________________
Joan Stevens Smyth
City Attorney
Agenda Item No. 11 Page 10 of 11 CC Agenda 06-15-2026
Ordinance No. ___, Page 7 of 7
CERTIFICATION
STATE OF CALIFORNIA )
COUNTY OF VENTURA ) SS.
CITY OF PORT HUENEME )
I, Georgianna Nicole Alvarez, City Clerk of the City of Port Hueneme, California, do hereby certify that the foregoing Ordinance No. ____ was introduced at the regular meeting of _____, 2025, and duly adopted at the regular meeting of ________, 2025, by the following vote:
AYES:
NOES:
ABSTAIN:
ABSENT:
Dated:
Georgianna Nicole Alvarez
City Clerk
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