Skip to content
TapBuff
ZIP

Is Green Valley, SD tap water safe?

2 utilities serve Green Valley, by EPA’s records. Here is what EPA’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 Green Valley has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s records.

Rapid Valley Sanitary District, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 5.7 ppt, above EPA’s new limit, which takes effect in 2029.

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 Green Valley’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 Rapid Valley Sanitary District’s water, which serves the most people here. Another utility’s report names what handles its own results.

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Every claim, and more filters, in the full report

Water testing near Green Valley

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 Green Valley, 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 10 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 Green Valley

Which ZIP codes are in Green Valley: 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 Green Valley

Towns nearby with a page of their own.

What to do next