Skip to content
TapBuff
ZIP

Is St. Joseph, KY tap water safe?

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

Daviess Co Water District, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 5.0 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 St. Joseph’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 Daviess Co Water 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 St. Joseph

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 Kentucky certifies.

TapBuff hasn’t read Kentucky’s list of certified labs yet. The national page links every state’s own list.

Certified labs, state by state

ZIP codes in St. Joseph

Which ZIP codes are in St. Joseph: 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.

Near St. Joseph

Towns nearby with a page of their own.

What to do next