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Is Preston, MN tap water safe?

2 utilities serve Preston, by EPA’s records. Here is what EPA’s and Minnesota’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Neither of the 2 utilities serving Preston has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Minnesota’s records.

Preston, which serves the most people here, has 1 result 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.

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 Preston’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 Preston’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 Preston

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 Minnesota certifies.

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

  • Fillmore SWCD Water Quality Laboratory

    Preston, MN · under a mile

    Certified for bacteria

    (507) 765-3878

  • Southeastern Minnesota Water Analysis Laboratory

    Rochester, MN · about 27 miles

    Certified for bacteria, nitrate

    (507) 328-7495

  • Red Wing City Laboratory

    Red Wing, MN · about 65 miles

    Certified for bacteria

    (651) 385-5143

All 24 certified labs for Minnesota

ZIP codes in Preston

Which ZIP codes are in Preston: 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: Minnesota Department of Health, accredited labs in Minnesota accepting drinking water samples from private well users; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Preston

Towns nearby with a page of their own.

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