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Is Coleville, CA tap water safe?

2 utilities serve Coleville, 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

1 of the 2 utilities serving Coleville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Sierra East HOA.

USMC - Housing Coleville, which serves the most people here, has 1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Arsenic at 21.3 ppb, above the limit’s level, no violation. Health goals are stricter than legal limits and are not enforced.

The water from USMC - Housing Coleville is hard to very hard depending on the source, 140 to 185 mg/L (8.2 to 10.8 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 Coleville’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 USMC - Housing Coleville’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 Coleville

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

  • Precision Enviro-Tech

    Twain Harte, CA · about 52 miles

    Certified for bacteria

    (209) 477-8105

  • SGS Silver State Analytical Lab - Reno

    Reno, NV · about 70 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, radioactivity

    (775) 857-2400

  • 49er Water Laboratory

    Jackson, CA · about 70 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (530) 277-2770

All 145 certified labs for California

ZIP codes in Coleville

Which ZIP codes are in Coleville: 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 Coleville

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

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