Is Williamstown, KY tap water safe?
The short answer
2 of the 2 utilities serving Williamstown have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kentucky’s records: Williamstown Municipal Water Dept and Bullock Pen Water District.
Williamstown Municipal Water Dept, which serves the most people here, has 2 results above the health goal. The worst: Lead at 3.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
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 Williamstown’s ZIP codes, from EPA’s estimates.
- Open report
Williamstown Municipal Water Dept
Kentucky · serves 5,495 people · about 790 in Williamstown
2 results above the health goal. The worst: Lead at 3.0 ppb, above the health goal.
4 health-based violations since 2016
- Open report
Bullock Pen Water District
Kentucky · serves 20,048 people · about 210 in Williamstown
1 result above the health goal. The worst: Lead at 0.3 ppb, above the health goal.
2 health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Williamstown Municipal Water Dept’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near Williamstown
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 Williamstown
Which ZIP codes are in Williamstown: 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 Williamstown
Towns nearby with a page of their own.
What to do next
- Read Williamstown Municipal Water Dept’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water