Kentucky · population 3,971
Lead pipes in Williamstown, KY
308 lines still unidentified
Most of Williamstown (population 3,971) gets its water from Williamstown Municipal Water Dept. It reported no confirmed lead service lines, but 308 of 1,761 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Williamstown Municipal Water Dept's service lines are lead or galvanized requiring replacement, lower than the Kentucky average (1.5%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 17%
- Non-lead 83%
Latest lead test for Williamstown Municipal Water Dept (Jan 2023–Dec 2025): 3 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Williamstown Municipal Water Dept.
Water systems serving Williamstown
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Williamstown Municipal Water DeptMain system | 0 | 0 | 308 | 0% |
| Bullock Pen Water DistrictServes nearby areas | 0 | 0 | 1,275 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Williamstown
The counts above cover the whole water system. To see whether your line is lead, look up your address on Williamstown Municipal Water Dept's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Dry Ridgeno lead reported
- Crittenden1,275 unknown
- Falmouth8 lead + galv. lines
- Walton56 lead + galv. lines
- Owenton67 lead + galv. lines
- Warsaw71 lead + galv. lines
- Union1 lead + galv. lines
- Independence4,108 lead + galv. lines
Check another water system
Questions
Does Williamstown, KY have lead pipes?
None are confirmed, but Williamstown Municipal Water Dept still lists 308 service lines as unknown material.
Who supplies water to Williamstown?
EPA's service area maps place most of Williamstown in Williamstown Municipal Water Dept's service area (PWSID KY0410472). Bullock Pen Water District also serves parts of the city or nearby areas.
How do I check whether my Williamstown home has a lead service line?
Search your address on Williamstown Municipal Water Dept's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Williamstown be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Williamstown Municipal Water Dept whether your street is scheduled and whether it covers the private side.