County · Pennsylvania
Mercer County, Pennsylvania: drinking water records
This overview covers 20 ZIP codes and 28 community water systems in Mercer County. It also stands in for 5 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Aqua Pa Greenville PA6430037 | 8,600 | 120 | 0 | 1 | 0.8 ppb |
| Aqua Pa Lake Latonka WTP PA6430059 | 1,600 | 60 | 0 | 3 | 1.4 ppb |
| Aqua Pa Shenango Valley WTP PA6430054 | 48,000 | 120 | 1 | 0 | 0 ppb |
| Grove City Boro Water Dept PA6430040 | 7,871 | 60 | 0 | 0 | 0 ppb |
| Sharpsville Boro Water Co PA6430055 | 5,029 | 120 | 1 | 0 | 1.4 ppb |
| Reynolds Water Company PA6430057 | 2,370 | 0 | 0 | 6 | 1 ppb |
| Buhl Community Water Company PA6430049 | 2,227 | 0 | 0 | 1 | 8 ppb |
| Jamestown Boro Water Auth PA6430043 | 680 | 0 | 0 | 1 | 26 ppb |
| Fredonia Boro PA6430036 | 443 | 0 | 0 | 3 | 24.2 ppb |
| Pine Grove Mobile Home Park PA6430046 | 244 | 0 | 0 | 1 | 1 ppb |
| Sunnyview Mobile Home Park PA6430003 | 88 | 0 | 0 | 1 | 1 ppb |
| Summit Estates PA6430074 | 72 | 0 | 0 | 1 | 42 ppb |
| Grandview Acres MHP PA6430042 | 70 | 0 | 0 | 2 | 1 ppb |
| Route 322 Mobile Home Park PA6430019 | 53 | 0 | 0 | 5 | 1 ppb |
| Scenic Mobile Home Park PA6430001 | 50 | 0 | 0 | 3 | 1 ppb |
| Pine TWP Water Distr System PA6430061 | 3,082 | 0 | 0 | 0 | 0 ppb |
| Sandy Lake Boro PA6430052 | 1,100 | 0 | 0 | 0 | 3.5 ppb |
| St Paul Homes PA6430024 | 1,000 | 0 | 0 | 0 | 4 ppb |
| Stoneboro Water Works PA6430056 | 956 | 0 | 0 | 0 | 4.5 ppb |
| South Pymatuning PA6430077 | 641 | 0 | 0 | 0 | 17 ppb |
| Greenville MHP PA6430039 | 150 | 0 | 0 | 0 | 1 ppb |
| Leesburg Water Association PA6430999 | 125 | 0 | 0 | 0 | 22 ppb |
| Country Estates PA6430002 | 70 | 0 | 0 | 0 | 1 ppb |
| Greystone Country Estates PA6430073 | 55 | 0 | 0 | 1 | not reported |
| Pennwood Estates MHP PA6430021 | 51 | 0 | 0 | 0 | 3 ppb |
ZIP reports in Mercer County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 16113, 16114, 16133, 16151, 16153.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.