

WATER QUALITY
United Water Conservation District is dedicated to providing fresh, clean, and safe water to the retail agencies we serve. We follow strict water quality standards set by the U.S. Environmental Protection Agency and the State Water Resources Control Board Division of Drinking Water. Our highly trained staff perform regular testing to ensure drinking water meets or exceeds those specifications. Water produced by our wells is naturally filtered through the ground and chlorine and chloramines are added for disinfection.
Consumer Confidence Report
United’s Oxnard Hueneme Delivery System supplies about 10,000 acre-feet of water per year to several agencies in the Oxnard Plain, including the cities of Oxnard and Port Hueneme, two Naval bases, and several smaller water companies. Those agencies deliver our water to over 215,000 people, most of it treated or blended with other supplies. Each year, thousands of tests are conducted for over 180 constituents that could be found in drinking water.
The results of that testing are detailed in the Consumer Confidence Report, which is published by July 1 each year. The report includes information about the sources of drinking water supplies, what contaminants if any are present, and how they may affect public health. The report also indicates how our water supplies compare to state and federal standards.
Santa Clara River Watershed Sanitary Survey Update
United Water Conservation District performed the first sanitary survey for the Santa Clara River watershed in 1996 (supplemented in 1997). The original sanitary survey has been updated on two occasions, the first update represented the period between the original survey and December 31, 2000 and the second survey followed five years later culminating on December 31, 2005.
Water Treatment Documents
The United Water Conservation District has prepared a feasibility study for iron and manganese treatment of deep wells that supply the Oxnard Hueneme Pipeline. The District is planning to construct treatment facilities which will improve the operational flexibility and drought resilience of the Oxnard Hueneme Pipeline system.
WATER QUALITY
United Water Conservation District is dedicated to providing fresh, clean, and safe water to the retail agencies we serve. We follow strict water quality standards set by the U.S. Environmental Protection Agency and the State Water Resources Control Board Division of Drinking Water. Our highly trained staff perform regular testing to ensure drinking water meets or exceeds those specifications. Water produced by our wells is naturally filtered through the ground and chlorine and chloramines are added for disinfection.
Consumer Confidence Report
United’s Oxnard Hueneme Delivery System supplies about 10,000 acre-feet of water per year to several agencies in the Oxnard Plain, including the cities of Oxnard and Port Hueneme, two Naval bases, and several smaller water companies. Those agencies deliver our water to over 215,000 people, most of it treated or blended with other supplies. Each year, thousands of tests are conducted for over 180 constituents that could be found in drinking water.
The results of that testing are detailed in the Consumer Confidence Report, which is published by July 1 each year. The report includes information about the sources of drinking water supplies, what contaminants if any are present, and how they may affect public health. The report also indicates how our water supplies compare to state and federal standards.
Santa Clara River Watershed Sanitary Survey Update
United Water Conservation District performed the first sanitary survey for the Santa Clara River watershed in 1996 (supplemented in 1997). The original sanitary survey has been updated on two occasions, the first update represented the period between the original survey and December 31, 2000 and the second survey followed five years later culminating on December 31, 2005.
Water Treatment Documents
The United Water Conservation District has prepared a feasibility study for iron and manganese treatment of deep wells that supply the Oxnard Hueneme Pipeline. The District is planning to construct treatment facilities which will improve the operational flexibility and drought resilience of the Oxnard Hueneme Pipeline system.
WATER SUPPLY
Governed by a seven-member Board of Directors, United Water Conservation District manages, protects, conserves and enhances the region’s water supply. Through careful monitoring and management, we maintain the water resources of the Santa Clara River, its tributaries and associated aquifers, in an environmentally balanced manner.
- 2024 Annual Water Supply and Demand Assessment
- 2023 Annual Water Supply and Demand Assessment
- 2020 Urban Water Management Plan Errata (2022-05-18)
- Final 2020 Urban Water Management Plan (Final 2021-06-08)
- Final Water Shortage Contingency Plan (Final 2021-06-08)
- Pumping Trough Pipeline Shutdown (June 8-10, 2021)
- Alternative Supply Assurance Pipeline Project Feasibility Study (September 2019)
- Anacapa Project Feasibility Study (July 2019)
- Addendum to Preliminary Evaluation of Impacts of Potential Groundwater Sustainability Indicators on Future Groundwater Extraction Rates – Oxnard Plain and Pleasant Valley Groundwater Basins (‘GSP-Lite’)(November 7, 2017)
- Preliminary Evaluation of Impacts of Potential Groundwater Sustainability Indicators on Future Groundwater Extraction Rates – Oxnard Plain and Pleasant Valley Groundwater Basins (‘GSP-Lite’)(April 2017)
- Water Supply Availability Notice for the OH Pipeline System (June 2016)
- 2015 Urban Water Management Plan for Oxnard Hueneme System (FINAL 2016-06-28)
- PTP Users Mtg February 27, 2014 – Powerpoint Presentation
- The History of Steelhead and Rainbow Trout in Ventura County: Newsprint Accounts from 1870 to 1955 Volume I by Kimberly Bowers

BASIN CONDITIONS REPORT
United staff conducts regular monitoring of groundwater levels throughout the District. The data from this monitoring is used to track trends and model the effects of future possible hydrologic conditions. In some cases, Basin Management Objectives (BMOs) have been established for a groundwater basin to maintain optimum water levels and prevent overdraft.
GROUNDWATER CONDITIONS
Basins/Aquifers
Monitoring of water levels, water quality, and other key parameters are an integral part of United’s successful planning and water conservation actions. Recent technical reports include, but are not limited to, the following:
General Reports
- 2025 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2025)
- 2024 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2024)
- 2023 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2023)
- 2022 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2022)
- Forecasted Water Resource Impacts from Changes in Operation of Freeman Diversion
- 2021 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2021)
- 2020 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2020)
- 2019 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2019)
- 2018 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2018)
- 2017 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2017)
- 2016 Annual Investigation and Report on Groundwater Conditions with United Water Conservation District (March 2016)
- 2015 Groundwater and Surface Water Conditions Report (March 2017)
- Groundwater Resource Management Fundamentals: Groundwater Basin Connectivity Report (May 2014)
- Supplemental Technical Memorandum: Infiltration Potential of Precipitation Falling on Developed Lands and the Applied Groundwater Within UWCD (May 2014)
- 2013 Groundwater and Surface Water Conditions Report (May 2014)
- 2011 Groundwater and Surface Water Conditions Report (May 2012)
Hydrologic
Monthly Hydrologic Conditions Report
Flow Model
Groundwater Flow Model
- UWCD OFR 2021-03 Oxnard Plain Surface Water Distribution Model (September 2021)
- UWCD OFR 2021-02 Ventura Regional Groundwater Flow Model Update (September 2021)
- Expert Panel Review Memo – UWCD Model Expansion and Update (August 2021)
- UWCD OFR 2021-01 Ventura Regional Groundwater Flow Model Expansion (June 2021)
- UWCD 2021 June Technical Memorandum Future Modeling Documentation GSP Support (June 2021)
- Model Documentation (July 2018)
- Expert Panel Review Memo – UWCD Model 2018-06-29.pdf
- Appendix A (July 2018)
- Appendix B (July 2018)
- Appendix C (July 2018)
- Appendix D (July 2018)
GROUNDWATER CONDITIONS
Basins/Aquifers
Monitoring of water levels, water quality, and other key parameters are an integral part of United’s successful planning and water conservation actions. Recent technical reports include, but are not limited to, the following:
General Reports
- 2025 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2025)
- 2024 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2024)
- 2023 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2023)
- 2022 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2022)
- Forecasted Water Resource Impacts from Changes in Operation of Freeman Diversion
- 2021 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2021)
- 2020 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2020)
- 2019 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2019)
- 2018 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2018)
- 2017 Annual Investigation and Report on Groundwater Conditions within United Water Conservation District (March 2017)
- 2016 Annual Investigation and Report on Groundwater Conditions with United Water Conservation District (March 2016)
- 2015 Groundwater and Surface Water Conditions Report (March 2017)
- Groundwater Resource Management Fundamentals: Groundwater Basin Connectivity Report (May 2014)
- Supplemental Technical Memorandum: Infiltration Potential of Precipitation Falling on Developed Lands and the Applied Groundwater Within UWCD (May 2014)
- 2013 Groundwater and Surface Water Conditions Report (May 2014)
- 2011 Groundwater and Surface Water Conditions Report (May 2012)
Hydrologic
Monthly Hydrologic Conditions Report
- Current Hydrologic Conditions Report
- Monthly Hydrologic Conditions Report – September 2023
- Monthly Hydrologic Conditions Report – August 2023
- Monthly Hydrologic Conditions Report – June 2023
- Monthly Hydrologic Conditions Report – May 2023
- Monthly Hydrologic Conditions Report – April 2023
- Monthly Hydrologic Conditions Report – March 2023
- Monthly Hydrologic Conditions Report – February 2023
- Monthly Hydrologic Conditions Report – January 2023
- Monthly Hydrologic Conditions Report – December 2022
- Monthly Hydrologic Conditions Report – November 2022
- Monthly Hydrologic Conditions Report – October 2022
- Monthly Hydrologic Conditions Report – September 2022
- Monthly Hydrologic Conditions Report – August 2022
- Monthly Hydrologic Conditions Report – July 2022
- Monthly Hydrologic Conditions Report – June 2022
- Monthly Hydrologic Conditions Report – May 2022
- Monthly Hydrologic Conditions Report – April 2022
- Monthly Hydrologic Conditions Report – March 2022
- Monthly Hydrologic Conditions Report – February 2022
- Monthly Hydrologic Conditions Report – January 2022
Flow Model
Groundwater Flow Model
- UWCD OFR 2021-02 Ventura Regional Groundwater Flow Model Update (September 2021)
- Expert Panel Review Memo – UWCD Model Expansion and Update (August 2021)
- UWCD OFR 2021-01 Ventura Regional Groundwater Flow Model Expansion (June 2021)
- UWCD 2021 June Technical Memorandum Future Modeling Documentation GSP Support (June 2021)
- Model Documentation (July 2018)
- Expert Panel Review Memo – UWCD Model 2018-06-29.pdf
- Appendix A (July 2018)
- Appendix B (July 2018)
- Appendix C (July 2018)
- Appendix D (July 2018)
FINANCIAL REPORTS
Annual Reports
- Annual Comprehensive Financial Report FY Ended June 30, 2023
- Annual Comprehensive Financial Report FYs Ended June 30, 2022 and 2021
- Annual Comprehensive Financial Report FY Ended June 30, 2021
- Comprehensive Annual Financial Report FY Ended June 30, 2020
- Comprehensive Annual Financial Report FY Ended June 30, 2019
- Comprehensive Annual Financial Report FY Ended June 30, 2018
- Comprehensive Annual Financial Report FY Ended June 30, 2017
- Comprehensive Annual Financial Report FY Ended June 30, 2016
- Comprehensive Annual Financial Report FY Ended June 30, 2015
- Comprehensive Annual Financial Report FY Ended June 30, 2014
Audit Reports
Rate Studies
Bonds & Investor Information
Adopted Budgets
- Adopted Annual Budget Fiscal Year 2024-2025
- Adopted Annual Budget Fiscal Year 2023-2024
- Adopted Annual Budget Fiscal Year 2022-2023
- Adopted Annual Budget Fiscal Year 2021-2022
- Adopted Annual Budget Fiscal Year 2020-2021
- Adopted Annual Budget Fiscal Year 2019-2020 – Correction Revised Ver.7/18/19
- Adopted Annual Budget Fiscal Year 2018-2019
- Adopted Annual Budget Fiscal Year 2017-2018
- Adopted Annual Budget Fiscal Year 2016-2017
Proposed Budgets
- Proposed Budget for Fiscal Year 2024-25
- Proposed Budget for Fiscal Year 2023-24
- Proposed Budget for Fiscal Year 2022-23
- REVISED Proposed Budget for Fiscal Year 2021-22
- Proposed Budget for Fiscal Year 2021-22
- REVISED Proposed Budget for Fiscal Year 2020-21
- Proposed Budget for Fiscal Year 2020-21
- Proposed Budget for Fiscal Year 2019-20
- Proposed Budget for Fiscal Year 2018-19
Budget Presentations
Credit Ratings: Fitch’s and Standard & Poor’s
Policies
Quarterly Financial Reports
FY 2024-25
FY 2023-24
FY 2022-23
FY 2021-22
FY 2020-21
FY 2019-20
- Fourth Quarter FY 2019-20
- Third Quarter FY 2019-20
- Second Quarter FY 2019-20
- First Quarter FY 2019-20
FY 2018-19
FY 2017-18
FY 2016-17
FINANCIAL REPORTS
Annual Reports
- Annual Comprehensive Financial Report FY Ended June 30, 2023
- Annual Comprehensive Financial Report FYs Ended June 30, 2022 and 2021
- Annual Comprehensive Financial Report FY Ended June 30, 2021
- Comprehensive Annual Financial Report FY Ended June 30, 2020
- Comprehensive Annual Financial Report FY Ended June 30, 2019
- Comprehensive Annual Financial Report FY Ended June 30, 2018
- Comprehensive Annual Financial Report FY Ended June 30, 2017
- Comprehensive Annual Financial Report FY Ended June 30, 2016
- Comprehensive Annual Financial Report FY Ended June 30, 2015
- Comprehensive Annual Financial Report FY Ended June 30, 2014
Audit Reports
Rate Studies
Bonds & Investor Information
Adopted Budgets
- Adopted Annual Budget Fiscal Year 2024-2025
- Adopted Annual Budget Fiscal Year 2023-2024
- Adopted Annual Budget Fiscal Year 2022-2023
- Adopted Annual Budget Fiscal Year 2021-2022
- Adopted Annual Budget Fiscal Year 2020-2021
- Adopted Annual Budget Fiscal Year 2019-2020 – Correction Revised Ver.7/18/19
- Adopted Annual Budget Fiscal Year 2018-2019
- Adopted Annual Budget Fiscal Year 2017-2018
- Adopted Annual Budget Fiscal Year 2016-2017
Proposed Budgets
- Proposed Budget for Fiscal Year 2024-25
- Proposed Budget for Fiscal Year 2023-24
- Proposed Budget for Fiscal Year 2022-23
- REVISED Proposed Budget for Fiscal Year 2021-22
- Proposed Budget for Fiscal Year 2021-22
- REVISED Proposed Budget for Fiscal Year 2020-21
- Proposed Budget for Fiscal Year 2020-21
- Proposed Budget for Fiscal Year 2019-20
- Proposed Budget for Fiscal Year 2018-19
Budget Presentations
Credit Ratings: Fitch’s and Standard & Poor’s
Policies
Quarterly Financial Reports
FY 2024-25
FY 2023-24
FY 2022-23
FY 2021-22
FY 2020-21
FY 2019-20
- Fourth Quarter FY 2019-20
- Third Quarter FY 2019-20
- Second Quarter FY 2019-20
- First Quarter FY 2019-20
FY 2018-19
FY 2017-18
FY 2016-17
FERC COMPLIANCE
FEDERAL ENERGY
REGULATORY COMMISSION
(FERC)
REGULATORY COMMISSION
(FERC)
Hydroelectric power generation at the Santa Felicia Dam is regulated by a license issued by the Federal Energy Regulatory Commission (FERC). The license has various terms and conditions that UWCD must satisfy to remain in compliance with state and federal regulations. Some of the requirements are associated with structural engineering, water quality, and public safety, and others pertain to management of biological and land resources, and recreational opportunities and facilities.
Under the Federal Powers Act, FERC is responsible for licensing 2015 construction of new projects, relicensing existing projects, and oversight of all ongoing project operations, including dam safety inspections and environmental monitoring.
- December 2021 Operations Log
- November 2021 Operations Log
- October 2021 Operations Log
- September 2021 Operations Log
- August 2021 Operations Log
- June 2021 Operations Log
- May 2021 Operations Log
- April 2021 Operations Log
- March 2021 Operations Log
- February 2021 Operations Log
- January 2021 Operations Log
FERC COMPLIANCE
FEDERAL ENERGY
REGULATORY COMMISSION
(FERC)
REGULATORY COMMISSION
(FERC)
Hydroelectric power generation at the Santa Felicia Dam is regulated by a license issued by the Federal Energy Regulatory Commission (FERC). The license has various terms and conditions that UWCD must satisfy to remain in compliance with state and federal regulations. Some of the requirements are associated with structural engineering, water quality, and public safety, and others pertain to management of biological and land resources, and recreational opportunities and facilities.
Under the Federal Powers Act, FERC is responsible for licensing 2015 construction of new projects, relicensing existing projects, and oversight of all ongoing project operations, including dam safety inspections and environmental monitoring.
- December 2021 Operations Log
- November 2021 Operations Log
- October 2021 Operations Log
- September 2021 Operations Log
- August 2021 Operations Log
- June 2021 Operations Log
- May 2021 Operations Log
- April 2021 Operations Log
- March 2021 Operations Log
- February 2021 Operations Log
- January 2021 Operations Log
CEQA DOCUMENTS
The California Environmental Quality Act (CEQA) guides the issuance of permits and approval of projects. In this section you will find environmental impact reports, studies and documents related to District projects and operations.
The California Environmental Quality Act (CEQA) is a multi-purpose law in the State of California that is intended to inform decision makers and the public of the environmental impacts of proposed projects. In this section you will find environmental documents, CEQA notices and public comment and meeting notices related to the District’s proposed projects and operations. To contact United Water, please send CEQA comments or notification requests to CEQA@unitedwater.org. Please navigate to the CA State CEQAnet Web Portal for a cumulative list of United’s CEQA documents: https://ceqanet.opr.ca.gov/.
Groundwater Recharge Capacity Expansion Project – Ferro Recharge
- Final Initial Study – Mitigated Negative Declaration
- Notice of Determination
- Mitigation Monitoring and Reporting Program
- Response to Comments Matrix
Suspension of CEQA for Increased Importation of State Water Project Water under the Drought Emergency Executive Order N-7-22
PTP Recycled Water Connection, Laguna Road Pipeline Project
- Final Initial Study – Mitigated Negative Declaration
- PTP Recycled Water Connection – Notice of Determination
- Mitigation Monitoring and Reporting Program
Santa Felicia Dam Environmental Impact Reports
CEQA DOCUMENTS
The California Environmental Quality Act (CEQA) guides the issuance of permits and approval of projects. In this section you will find environmental impact reports, studies and documents related to District projects and operations.
The California Environmental Quality Act (CEQA) is a multi-purpose law in the State of California that is intended to inform decision makers and the public of the environmental impacts of proposed projects. In this section you will find environmental documents, CEQA notices and public comment and meeting notices related to the District’s proposed projects and operations. To contact United Water, please send CEQA comments or notification requests to CEQA@unitedwater.org. Please navigate to the CA State CEQAnet Web Portal for a cumulative list of United’s CEQA documents: https://ceqanet.opr.ca.gov/.
Groundwater Recharge Capacity Expansion Project – Ferro Recharge
- Final Initial Study – Mitigated Negative Declaration
- Notice of Determination
- Mitigation Monitoring and Reporting Program
- Response to Comments Matrix
Suspension of CEQA for Increased Importation of State Water Project Water under the Drought Emergency Executive Order N-7-22
PTP Recycled Water Connection, Laguna Road Pipeline Project
- Final Initial Study – Mitigated Negative Declaration
- PTP Recycled Water Connection – Notice of Determination
- Mitigation Monitoring and Reporting Program
Santa Felicia Dam Environmental Impact Reports
TRANSPARENCY INFORMATION
United Water Conservation District is committed to transparency and accountability. We value our customers’ right to access information pertaining to District finances, operations, policies, and services.
District Transparency Portal
Brown Act
The Ralph M. Brown Act, California Government Code § 54950.
The Brown Act or “Open Meeting Law” is officially known as the Ralph M. Brown Act and is found in the California Government Code § 54950 et seq. 1. The Brown Act was enacted in 1953 to guarantee the public’s right to attend and participate in meetings of local legislative bodies, and as a response to growing concerns about local government officials’ practice of holding secret meetings that were not in compliance with advance public notice requirements. The Brown Act is pivotal in making public officials accountable for their actions and in allowing the public to participate in the decision making process.
Board Meetings & Info
Policies
Fair Practices