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Is Hamilton, MT tap water safe?

13 utilities serve Hamilton, by EPA’s records. Here is what EPA’s and Montana’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 13 utilities serving Hamilton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Montana’s records: Sawtooth Villa.

City of Hamilton, which serves the most people here, has 3 results above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

The water from City of Hamilton is hard, 139 mg/L (8.1 grains per gallon). How Montana’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 Hamilton’s ZIP codes, from EPA’s estimates.

3 more utilities in Hamilton

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

  • Hamilton Mobile Villageserves 53 people · lists Hamilton among the places it serves · no health-based violations since 2016
  • Honey Lane Communityserves 50 people · lists Hamilton among the places it serves · no health-based violations since 2016
  • Wards Cove Water Usersserves 45 people · lists Hamilton among the places it serves · no health-based violations since 2016

What handles it

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

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 Montana certifies.

The 3 labs Montana certifies closest to Hamilton, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Water Technologies Laboratory

    Missoula, MT · about 47 miles

    Certified for bacteria

    (406) 549-8868

  • RD Water Lab, LLC

    Missoula, MT · about 49 miles

    Certified for bacteria

    (406) 721-8179

  • Missoula CCHD Water Lab

    Missoula, MT · about 51 miles

    Certified for bacteria

    (406) 523-4755

Montana State Environmental Laboratory: Private well testing packages for bacteria, metals, nutrients, anions, organic chemicals and more, open to the public. Samples can be mailed, sent by the lab's free courier, or dropped off at the lab. Environmental Laboratory, Montana Department of Public Health and Human Services.

All 36 certified labs for Montana

ZIP codes in Hamilton

Which ZIP codes are in Hamilton: 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: Montana Department of Public Health and Human Services, Water Laboratory Certification Program, certified laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Hamilton

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

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