Public Water Systems
7,701 active water systems in PA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| WARMINSTER MUNICIPAL AUTHORITY | WARMINSTER, PA | 40,000 | 2,250 | Detected |
| NORTHAMPTON BORO MUNI AUTH | NORTHAMPTON, PA | 40,000 | 10 | Clean |
| SOUTHWESTERN PA WATER AUTH | JEFFERSON, PA | 40,000 | 84 | Clean |
| OAKMONT WATER AUTHORITY | OAKMONT, PA | 39,901 | 26 | Detected |
| NEWTOWN ARTESIAN WATER CO | NEWTOWN, PA | 38,500 | 495 | Detected |
| MOON TWP MUNI AUTH | MOON TOWNSHIP, PA | 38,000 | 168 | Detected |
| PENN STATE UNIV | UNIVERSITY PARK, PA | 37,000 | 171 | Clean |
| PA AMERICAN COATESVILLE | COATESVILLE, PA | 36,960 | 81 | Detected |
| NORTHAMPTON BUCKS CO MUN AUTH | RICHBORO, PA | 36,750 | 2,055 | Detected |
| POTTSTOWN BOROUGH WATER AUTH | POTTSTOWN, PA | 36,000 | 172 | Detected |
| AQUA PA UWCHLAN | BRYN MAWR, PA | 35,518 | 237 | Detected |
| NORTH FAYETTE CNTY MUNI AUTH | DUNBAR, PA | 35,409 | 184 | Clean |
| PA AMERICAN WATER CO YARDLEY | YARDLEY, PA | 33,171 | 126 | Detected |
| WEST CNTY MUNI AUTH-MCKEESPORT | GREENSBURG, PA | 32,644 | 110 | Clean |
| SCHUYLKILL CO MUN AUTH | POTTSVILLE, PA | 31,850 | 241 | Clean |
| CHAMBERSBURG BORO WATER SYS | CHAMBERSBURG, PA | 31,048 | 170 | Clean |
| PA AMERICAN WHITE DEER | MILTON, PA | 30,209 | 10 | Clean |
| BRODHEAD CREEK REG WATER AUTH | EAST STROUDSBURG, PA | 30,000 | 584 | Clean |
| LATROBE MUNI AUTH | LATROBE, PA | 30,000 | 244 | Clean |
| VEOLIA WATER PA INC BLOOMSBURG | BLOOMSBURG, PA | 29,382 | 15 | Clean |
| AQUA PA BRISTOL | BRYN MAWR, PA | 28,727 | 92 | Detected |
| PAW PENN DISTRICT | READING, PA | 28,508 | 182 | Detected |
| GUILFORD WATER AUTH | CHAMBERSBURG, PA | 28,135 | 669 | Clean |
| PLUM BORO MUNI AUTH | PITTSBURGH, PA | 27,500 | 50 | Clean |
| AUTH OF BORO OF CHARLEROI | CHARLEROI, PA | 27,000 | 641 | Clean |
| PITTSBURGH INTL AIRPORT | PITTSBURGH, PA | 26,915 | 43 | Detected |
| MIFFLIN CNTY MUNI AUTH | MILROY, PA | 26,765 | 416 | Clean |
| HORSHAM WATER&SEWER AUTHORITY | HORSHAM, PA | 26,000 | 572 | Detected |
| CARLISLE WATER TRMT PLT | CARLISLE, PA | 26,000 | 67 | Detected |
| COLUMBIA WATER CO | COLUMBIA, PA | 25,200 | 199 | Clean |
| PAW GLEN ALSACE DIV | MECHANICSBURG, PA | 24,951 | 124 | Detected |
| EPHRATA AREA JOINT AUTHORITY | EPHRATA, PA | 24,500 | 182 | Detected |
| FALLS TWP WATER & SEWER DEPT | FAIRLESS HILLS, PA | 24,400 | 144 | Detected |
| PAW BLUE MOUNTAIN DIVISION | CLARKS SUMMIT, PA | 23,763 | 14 | Clean |
| PA-AMERICAN WATER- UNIONTOWN | UNIONTOWN, PA | 23,125 | 62 | Detected |
| HIGHLAND S & W AUTH BEAVERDAM | JOHNSTOWN, PA | 22,617 | 189 | Clean |
| PA AMERICAN WATER CO-INDIANA D | NEW CASTLE, PA | 22,360 | 10 | Detected |
| NWWA WARRINGTON TOWNSHIP | NORTH WALES, PA | 21,588 | 1,675 | Detected |
| DOVER TWP WATER SYS | DOVER, PA | 21,097 | 1,446 | Detected |
| MUHLENBERG TWP MUNI AUTH | READING, PA | 21,000 | 597 | Detected |
| EAST HEMPFIELD WATER AUTH | LANDISVILLE, PA | 20,988 | 63 | Detected |
| PAW PHILIPSBURG | PHILIPSBURG, PA | 20,784 | 0 | Clean |
| AMBLER BORO WATER DEPT | AMBLER, PA | 20,000 | 2,896 | Detected |
| ST MARYS AREA WATER AUTH | SAINT MARYS, PA | 19,588 | 483 | Clean |
| AMBRIDGE WATER AUTH | AMBRIDGE, PA | 19,500 | 269 | Clean |
| WESTERN ALLEGHENY COUNTY MUN A | OAKDALE, PA | 19,031 | 101 | Detected |
| CENTER TWP WATER AUTH | ALIQUIPPA, PA | 19,000 | 513 | Clean |
| ELIZABETHTOWN AREA WATER | ELIZABETHTOWN, PA | 19,000 | 405 | Detected |
| FOX CHAPEL AUTH | PITTSBURGH, PA | 18,500 | 21 | Clean |
| BRADFORD CITY WATER AUTHORITY | BRADFORD, PA | 18,500 | 313 | Clean |