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Is Spearfish, SD tap water safe?

Spearfish serves Spearfish, by EPA’s records. Here is what EPA’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Spearfish serves Spearfish. In EPA’s records it has 2 results above the health goal, and no health-based violation since 2016.

The worst: Arsenic at 5.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Spearfish’s water.

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Every claim, and more filters, in the full report

Water testing near Spearfish

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 South Dakota certifies.

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

  • Mid Continent Testing Laboratory

    Rapid City, SD · about 41 miles

    Certified for bacteria, minerals and other inorganics, organic chemicals, disinfection byproducts

    (605) 348-0111

South Dakota Public Health Laboratory: Sample bottles for testing a private well for bacteria and nitrate, lead, or a new-well panel, ordered online from the lab or picked up at a County Extension office. Instructions and fees come with the bottles. Test a Private Well, South Dakota Department of Health.

All 16 certified labs for South Dakota

ZIP codes in Spearfish

Which ZIP codes are in Spearfish: 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: South Dakota DANR, laboratories certified for the analysis of drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Spearfish

Towns nearby with a page of their own.

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