Is Masonville, KY tap water safe?
The short answer
2 of the 3 utilities serving Masonville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kentucky’s records: Ohio County Water District and North McLean Co Water District.
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 Masonville’s ZIP codes, from EPA’s estimates.
- Open report
Daviess Co Water District
Kentucky · serves 33,655 people · about 410 in Masonville
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.
No health-based violations since 2016
- Open report
Ohio County Water District
Kentucky · serves 16,511 people · about 240 in Masonville
1 result above the legal limit and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 50.8 ppb, above the legal limit.
2 health-based violations since 2016
- Open report
North McLean Co Water District
Kentucky · serves 2,934 people · under 100 in Masonville
1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOA at 6.5 ppt, above EPA’s new limit, which takes effect in 2029.
1 health-based violation since 2016
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.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOA
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA
Water testing near Masonville
TapBuff hasn’t read Kentucky’s list of certified labs yet. The national page links every state’s own list.
Certified labs, state by stateZIP codes in Masonville
Which ZIP codes are in Masonville: 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 Masonville
Other towns in Daviess County with a page of their own.
What to do next
- Read Daviess Co Water District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOARanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water