Skip to content
TapBuff
ZIP

Is Twin Falls, ID tap water safe?

City of Twin Falls serves Twin Falls, 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

City of Twin Falls serves Twin Falls. In EPA’s records it has 1 result above the legal limit, 1 result above the health goal and 1 result above EPA’s health benchmark, and no health-based violation since 2016.

The worst: Arsenic at 8.9 ppb, above the legal limit.

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 City of Twin Falls’s water.

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 Twin Falls

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 Idaho certifies.

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

  • Magic Valley Labs

    Twin Falls, ID · under a mile

    Certified for bacteria, minerals and other inorganics

All 33 certified labs for Idaho

ZIP codes in Twin Falls

Which ZIP codes are in Twin Falls: 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: Idaho Bureau of Laboratories, drinking water laboratory certificates; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Twin Falls

Towns nearby with a page of their own.

What to do next