Pennsylvania
Water Quality Report
73 Good
Average Score
73/100
Water Systems
748
Population
11.5M
Violations
0 all resolved
Score Distribution
3 A
2 B
1 C
0 D
0 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Tetrachloroethylene (PCE) | 1 |
| Radium-228 | 1 |
| Nitrite | 1 |
| Benzene | 1 |
| Turbidity | 1 |
Lowest Scoring Water Systems
65
Erie Water Works C
PA2510001 Erie, PA 101,786 served
77
Pittsburgh Water and Sewer Authority B
PA5020012 Pittsburgh, PA 302,971 served
89
Philadelphia Water Department B
PA1510001 Philadelphia, PA 1,500,000 served
93
Reading Area Water Authority A
PA3060005 Reading, PA 95,112 served
93
Aqua Pennsylvania (Philadelphia) A
PA1510002 Philadelphia, PA 450,000 served
Counties in Pennsylvania
Cities in Pennsylvania
View all 467 cities →Popular City Comparisons in Pennsylvania
Quickly compare major cities in Pennsylvania by water quality score and grade.
Frequently Asked Questions
Is tap water in Pennsylvania safe to drink?
Pennsylvania has an average WaterQ score of 73/100 across 748 public water systems. Safety can vary by city and system, so check your local report for recent violations and contaminants.
How many water systems are in Pennsylvania?
WaterQ currently tracks 748 public water systems in Pennsylvania.
Where can I compare cities in Pennsylvania?
Use the city list below to open detailed reports, or visit the compare tool to benchmark two cities side-by-side on score, grade, and system coverage.