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Is Montclair, CA tap water safe?

Monte Vista WD serves Montclair, by EPA’s records. Here is what EPA’s and California’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Monte Vista WD serves Montclair. In EPA’s and California’s records it has 1 result above EPA’s new limit, which takes effect in 2029 and 3 results above the health goal, and no health-based violation since 2016.

The worst: PFOS at 5.6 ppt, above EPA’s new limit, which takes effect in 2029.

The water from Monte Vista WD is moderately hard to very hard depending on the source, 71 to 215 mg/L (4.2 to 12.6 grains per gallon). How California’s water compares.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Monte Vista WD’s water.

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Every claim, and more filters, in the full report

Water testing near Montclair

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

  • Enviro-Chem, Inc.

    Pomona, CA · about 3 miles

    Certified for metals

    (909) 590-5905

  • A & R Laboratories, Inc.

    Ontario, CA · about 4 miles

    Certified for bacteria

    (951) 779-0310

  • Western Analytical Laboratories, Inc.

    Chino, CA · about 5 miles

    Certified for bacteria, minerals and other inorganics

    (909) 627-3628

All 145 certified labs for California

ZIP codes in Montclair

Which ZIP codes are in Montclair: 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 Montclair

Other towns in San Bernardino County with a page of their own.

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