Water quality in Williamstown, Pennsylvania
Williamstown is in Dauphin County. 144 active public water systems serve the county; 80 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Dauphin County
27 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lykens Boro Auth |
3,220 | 6 | 4.2 mi | |
| Gratz Boro Water Revenue Fund |
738 | 5 | 5.6 mi | |
| Short Mountain Village MHP |
53 | 0 | 7.0 mi | |
| Loyalton Water Assn |
100 | 2 | 7.6 mi | |
| Elizabethville Area Auth |
2,700 | 0 | 8.7 mi | |
| Pillow Boro Auth |
312 | 4 | 10.5 mi | |
| Grantville MHP |
1,040 | 1 | 13.6 mi | |
| Deann Village MHP |
135 | 10 | 15.2 mi | |
| Shady Back Acres MHP |
40 | 1 | 16.2 mi | |
| Camp Hebron Cws |
75 | 3 | 17.6 mi | |
| Millersburg Water Auth |
4,600 | 2 | 17.7 mi | |
| Alex Acres MHP |
108 | 0 | 17.7 mi | |
| Halifax Area Water & Sewer Aut |
2,278 | 1 | 18.8 mi | |
| Halifax Village |
272 | 9 | 18.9 mi | |
| PA Amer Water CO |
50,200 | 0 | 20.2 mi | |
| Mountaindale Apartments |
50 | 0 | 21.8 mi | |
| Veolia Water |
110,000 | 1 | 22.9 mi | |
| Capital Region Water |
66,540 | 1 | 25.0 mi | |
| Oak Knoll Est MHP |
350 | 1 | 26.3 mi | |
| Crestview Village MHP |
223 | 9 | 26.4 mi | |
| PA American Water Steelton |
6,428 | 0 | 26.7 mi | |
| Veolia Middletown |
9,600 | 2 | 26.9 mi | |
| Pine Manor MHP |
302 | 1 | 27.6 mi | |
| Royalton Boro |
1,083 | 1 | 27.8 mi | |
| Cedar Manor MHP |
432 | 0 | 28.0 mi |
Non-community systems in Dauphin County (116: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Dauphin County, nearest to Williamstown first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Pennsylvania records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.