Is Port Hueneme, CA tap water safe?
The short answer
1 of the 4 utilities serving Port Hueneme has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Naval Base Ventura County, Point Mugu.
Oxnard Water Dept, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 39 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Port Hueneme’s ZIP codes, from EPA’s estimates.
- Open report
Oxnard Water Dept
California · serves 200,232 people · about 4,000 in Port Hueneme
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 39 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Port Hueneme City Water Dept
California · serves 21,582 people · about 3,300 in Port Hueneme
1 result above EPA’s health benchmark. The worst: Lithium at 29.7 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Naval Base Ventura County, Port Hueneme
California · serves 3,500 people · about 560 in Port Hueneme
1 result above the health goal. The worst: Uranium at 5.2 ppb, above the health goal. Hardness: very hard, 421 mg/L (24.6 grains per gallon).
No health-based violations since 2016
- Open report
Naval Base Ventura County, Point Mugu
California · serves 1,700 people · about 190 in Port Hueneme
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 46.3 ppb, above the legal limit.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Oxnard Water Dept’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Nitrate, Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate, Arsenic
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Water testing near Port Hueneme
The 3 labs California certifies closest to Port Hueneme, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Ventura County Public Health Laboratory
Oxnard, CA · about 6 miles
Certified for bacteria
Camrosa Water District Wastewater Laboratory
Camarillo, CA · about 6 miles
Certified for bacteria
Capco Analytical Services
Ventura, CA · about 9 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Which ZIP codes are in Port Hueneme: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Port Hueneme
Other towns in Ventura County with a page of their own.
What to do next
- Read Oxnard Water Dept’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water