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Is Helena Valley Northwest, MT tap water safe?

3 utilities serve Helena Valley Northwest, 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 3 utilities serving Helena Valley Northwest has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Montana’s records: Helena Water System.

Helena Water System, which serves the most people here, has 1 result above the legal limit, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Haloacetic acids (HAA5) at 39.5 ppb, above the legal limit.

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 Helena Valley Northwest’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 Helena Water System’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 Helena Valley Northwest

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

  • Energy Laboratories, Inc.

    Helena, MT · about 10 miles

    Certified for bacteria, minerals and other inorganics, organic chemicals

    (406) 442-0711

  • DPHHS State of Montana Environmental Laboratory

    Helena, MT · about 20 miles

    Certified for bacteria, minerals and other inorganics, organic chemicals

    (406) 444-3444

  • Alpine Analytical

    Helena, MT · about 20 miles

    Certified for bacteria, minerals and other inorganics

    (406) 449-6282

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 Helena Valley Northwest

Which ZIP codes are in Helena Valley Northwest: 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 Helena Valley Northwest

Other towns in Lewis and Clark County with a page of their own.

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