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Is Lewistown, MT tap water safe?

5 utilities serve Lewistown, 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

2 of the 5 utilities serving Lewistown have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Montana’s records: City of Lewistown and King Ranch Colony.

City of Lewistown, which serves the most people here, has nothing above a health goal in EPA’s and Montana’s records. That data covers what its report lists, not everything.

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

Water testing near Lewistown

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

  • Aqua Tech Laboratory

    Lewistown, MT · under a mile

    Certified for bacteria

    (406) 538-6988

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 Lewistown

Which ZIP codes are in Lewistown: 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 Lewistown

Towns nearby with a page of their own.

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