Public water system · CA5610701
ActiveNaval Base Ventura County, Port Hueneme
At a glance
Naval Base Ventura County, Port Hueneme (PWSID CA5610701) is an active community water system in Ventura County, California. It reports serving 8,625 people through 609 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by the federal government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,625
Service connections
609
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Naval Base Ventura County, Port Hueneme compare with other water systems in Ventura County?
By EPA's size categories, Naval Base Ventura County, Port Hueneme is a medium system (3,301 to 10,000 people). Ventura County has 95 active public water systems. Its population served is roughly in line with the county average of 9,293 people per system, and accounts for 1% of the 882,799 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Naval Base Ventura County, Port Hueneme is about 29% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Naval Base Ventura County, Port Hueneme?
EPA lists Naval Base Ventura County, Port Hueneme as owned by the federal government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 95 active systems in Ventura County (6.3%) are also owned by the federal government.
Does Naval Base Ventura County, Port Hueneme have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2022. The violations listed here began between October 1996 and April 2022. By type: 4 contaminant level above the legal limit and 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-04-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2002-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Naval Base Ventura County, Port Hueneme: frequently asked questions
Who runs Naval Base Ventura County, Port Hueneme?
Naval Base Ventura County, Port Hueneme (PWSID CA5610701) is a community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Naval Base Ventura County, Port Hueneme serve?
Naval Base Ventura County, Port Hueneme reports serving 8,625 people through 609 service connections in Ventura County, California.
Where does Naval Base Ventura County, Port Hueneme get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Naval Base Ventura County, Port Hueneme have any drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Naval Base Ventura County, Port Hueneme's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Naval Base Ventura County, Port Hueneme's water quality report?
As a community water system, Naval Base Ventura County, Port Hueneme must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Ventura County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oxnard Water Dept | Ventura | 200,232 | Community | Purchased surface water |
| Ventura Water Department | Ventura | 113,500 | Community | Surface water |
| Ventura Wwd No. 8 - Simi Valley | Ventura | 94,738 | Community | Purchased surface water |
| Cal American Water Co | Ventura | 66,809 | Community | Purchased surface water |
| City of Thousand Oaks Water Department | Ventura | 53,157 | Community | Purchased surface water |
| Camarillo Water Dept | Ventura | 46,824 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Naval Base Ventura County, Port Hueneme, PWSID CA5610701, California”, https://aquacensus.com/water-systems/california/naval-base-ventura-county-port-hueneme-ca5610701 (data as of October 1, 2026).