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Is Troy, MO tap water safe?

13 utilities serve Troy, by EPA’s records. Here is what EPA’s and CDC’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

4 of the 13 utilities serving Troy have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Lincoln County PWSD 1, Rockport Subdivision, Tara Valley Homeowners Assn and 1 more.

Troy PWS, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 251 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.

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

3 more utilities in Troy

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

What handles it

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

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 Missouri certifies.

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

  • R.M. Wester and Associates Inc.

    St. Peters, MO · about 25 miles

    Certified for bacteria

    (636) 928-9628

  • Eurofins St. Louis Laboratory

    Earth City, MO · about 33 miles

    Certified for radioactivity

    (314) 298-8566

  • City of St. Louis-Howard Bend Laboratory

    Chesterfield, MO · about 34 miles

    Certified for bacteria, nitrate, minerals and other inorganics, organic chemicals

    (314) 256-5723

Missouri State Public Health Laboratory: Coliform and E. coli testing for private wells and other private drinking water sources, in kits from your local public health agency. A free state courier can carry the sample to the lab overnight. The handling fee is $10, by check or money order. Private Drinking Water Bacteriological Testing, Missouri Department of Health and Senior Services.

All 64 certified labs for Missouri

ZIP codes in Troy

Which ZIP codes are in Troy: 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: Missouri DNR, certified microbiological and chemical laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Troy

Towns nearby with a page of their own.

What to do next