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Is Vacaville, CA tap water safe?

10 utilities serve Vacaville, 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

3 of the 10 utilities serving Vacaville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: California State Prison - Solano, Sid - Gibson Canyon and Sid - Pleasant Hills Ranch.

City of Vacaville, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 10 ppt, above EPA’s new limit, which takes effect in 2029.

The water from City of Vacaville is moderately hard to very hard depending on the source, 70 to 301 mg/L (4.1 to 17.6 grains per gallon). How California’s water compares.

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

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in City of Vacaville’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 Vacaville

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 Vacaville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Napa-Solano-Yolo-Marin Public Health Laboratory

    Fairfield, CA · about 11 miles

    Certified for bacteria

    (707) 784-4410

  • Caltest Analytical Laboratory

    Napa, CA · about 18 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (707) 258-4000

  • McCampbell Analytical, Inc.

    Pittsburg, CA · about 24 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS

    (925) 252-9262

All 145 certified labs for California

ZIP codes in Vacaville

Which ZIP codes are in Vacaville: 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 Vacaville

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

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