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Is Oxnard, CA tap water safe?

13 utilities serve Oxnard, by EPA’s records. Here is what EPA’s and California’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

4 of the 13 utilities serving Oxnard have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Vineyard Ave Estates MWC, Vineyard Avenue Acres MWC, Siesta Mobile Home Park and 1 more.

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 Oxnard’s ZIP codes, from EPA’s estimates.

3 more utilities in Oxnard

By EPA’s estimate, each serves fewer people in Oxnard than those above.

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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Every claim, and more filters, in the full report

Water testing near Oxnard

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab California certifies.

The 3 labs California certifies closest to Oxnard, 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 3 miles

    Certified for bacteria

    (805) 981-5131

  • Capco Analytical Services

    Ventura, CA · about 5 miles

    Certified for bacteria, nitrate, metals, minerals and other inorganics

    (805) 644-1095

  • Camrosa Water District Wastewater Laboratory

    Camarillo, CA · about 7 miles

    Certified for bacteria

    (805) 248-0402

All 145 certified labs for California

ZIP codes in Oxnard

Which ZIP codes are in Oxnard: 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 Oxnard

Other towns in Ventura County with a page of their own.

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