Public Water Systems
7,701 active public water systems in PA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Slatington Borough Water Sys | Slatington, PA | 4,450 | 112 | Clean |
| Mifflintown Muni Auth | Mifflintown, PA | 4,450 | 321 | Clean |
| Southwestern Cambria Cnty Auth | Johnstown, PA | 4,400 | 111 | Clean |
| Franklin System York Water | York, PA | 4,400 | 442 | Clean |
| Brockway Boro Municipal Auth | Brockway, PA | 4,384 | 1,059 | Clean |
| West Earl Water Authority | Brownstown, PA | 4,327 | 99 | Detected |
| Aqua PA Jenks Twp WTP | Sharon, PA | 4,320 | 16 | Clean |
| Penn Estates Utilities Incorp | East Stroudsburg, PA | 4,300 | 423 | Clean |
| West Reading Boro Water | West Reading, PA | 4,300 | 41 | Detected |
| New Sewickley Twp Muni Auth | Rochester, PA | 4,276 | 105 | Detected |
| Caernarvon Twp Auth | Morgantown, PA | 4,245 | 494 | Detected |
| Jackson Twp Water Auth | Mineral Point, PA | 4,236 | 295 | - |
| PA Amer Water Co Susquehanna | Wilkes Barre, PA | 4,230 | 5 | Clean |
| Fleetwood Boro Water System | Fleetwood, PA | 4,218 | 409 | Clean |
| Ashland Area Water Authority | Ashland, PA | 4,200 | 179 | Detected |
| PA American Dilliner System | Dilliner, PA | 4,200 | 713 | Clean |
| Akron Borough | Akron, PA | 4,200 | 59 | Detected |
| Aqua PA Inc Treasure Lake Div | Sharon, PA | 4,155 | 458 | Clean |
| Buckingham Twp Furlong | Buckingham, PA | 4,150 | 151 | - |
| Zelienople Boro | Zelienople, PA | 4,123 | 307 | Detected |
| Mansfield Borough Mun Auth | Mansfield, PA | 4,100 | 673 | Clean |
| Wrightsville Boro Muni Auth | Wrightsville, PA | 4,076 | 194 | Clean |
| East Donegal | Columbia, PA | 4,048 | 438 | Detected |
| Blairsville Muni Auth | Blairsville, PA | 4,023 | 628 | Clean |
| Tilden Industrial Park | Hamburg, PA | 4,000 | 38 | Detected |
| Knoebels Grove Park | Elysburg, PA | 4,000 | 1,039 | Clean |
| Raccoon Creek State Park | Hookstown, PA | 4,000 | 510 | - |
| New Oxford Munci Auth | New Oxford, PA | 3,963 | 512 | Detected |
| Baden Boro Water Dept | Baden, PA | 3,948 | 214 | Clean |
| Shohola Falls Trails End Sys#2 | Shohola, PA | 3,933 | 175 | Clean |
| Hegins Hubley Authority | Valley View, PA | 3,870 | 74 | Clean |
| Denver Boro | Denver, PA | 3,861 | 101 | Detected |
| Mountain Water Assn | Fairchance, PA | 3,856 | 275 | Clean |
| Masontown Muni Water Works | Masontown, PA | 3,841 | 392 | Clean |
| Tobyhanna Army Depot | Tobyhanna, PA | 3,800 | 348 | Clean |
| Somerset Twp Muni Auth Oakridg | Somerset, PA | 3,800 | 118 | Clean |
| Petroleum Valley Rwa | Petrolia, PA | 3,800 | 25 | - |
| Roamingwood Sewer and Water | Lake Ariel, PA | 3,775 | 1,601 | Clean |
| Masonic Homes | Elizabethtown, PA | 3,707 | 230 | Detected |
| Brackenridge Boro Water Dept | Brackenridge, PA | 3,700 | 137 | Clean |
| Cooper Twp Municipal Auth | Morrisdale, PA | 3,700 | 520 | Clean |
| Mifflinburg Boro Water Dept | Mifflinburg, PA | 3,690 | 440 | Clean |
| Pleasant Valley Water Auth | Connellsville, PA | 3,630 | 137 | Clean |
| Aqua PA Perkiomen Township | Bryn Mawr, PA | 3,600 | 136 | Detected |
| Onvo Dorrance Sunoco | Scranton, PA | 3,600 | 29 | - |
| Middlesex Twp Muni Auth | Carlisle, PA | 3,527 | 235 | Clean |
| Radisson Valley Forge Hotel | King of Prussia, PA | 3,500 | 685 | Detected |
| Eagle Lake Community Assoc | Gouldsboro, PA | 3,500 | 1,090 | Detected |
| State Correctional Inst | Camp Hill, PA | 3,500 | 220 | Detected |
| Veolia Water PA Shavertown | Harrisburg, PA | 3,472 | 37 | - |