Pennsylvania Water Quality Ratings

TapWaterSafety has rated 32 public water systems in Pennsylvania, serving a combined 8,333,509 residents. The statewide average grade is D.

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
State average grade
D
61/100
Total utilities rated 32
Population served 8,333,509
Most recent test 2024
🇪🇺 Would fail EU standards 4 of 32

Top water quality concerns in Pennsylvania

  • Haloacetic acids (HAA9) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline

Grade distribution

A
0 (0%)
B
0 (0%)
C
15 (47%)
D
11 (34%)
F
6 (19%)

All rated utilities in Pennsylvania

Sorted by score, highest first. Click any utility to see the full grade card.

Rank Utility City Population Score Grade
#1 PITTSBURGH WATER & SEWER AUTH PITTSBURGH 520,000 69 C
#2 PAW CEASETOWN SCRANTON 58,467 67 C
#3 CITY OF BETHLEHEM BETHLEHEM 117,259 67 C
#4 EASTON AREA WATER SYSTEM EASTON 96,867 67 C
#5 ALTOONA WATER AUTHORITY ALTOONA 62,500 67 C
#6 HAMPTON SHALER WATER AUTHORITY ALLISON PARK 61,949 67 C
#7 WEST VIEW WATER AUTHORITY PITTSBURGH 200,000 67 C
#8 LEBANON WATER AUTH LEBANON 57,000 67 C
#9 YORK WATER CO YORK 206,762 67 C
#10 City of Pittsburgh Water Department Pittsburgh 302,000 66 C
#11 LOWER BUCKS CO JOINT MUN AUTH LEVITTOWN 63,007 65 C
#12 PA AMER WATER CO LAKE SCRANTON WILKES BARRE 134,570 65 C
#13 PA AMER WATER CO-PITTSBURGH MCMURRAY 686,000 65 C
#14 WILKINSBURG-PENN JT WATER AUTH WILKINSBURG 125,000 65 C
#15 ERIE CITY WATER AUTHORITY ERIE 220,001 65 C
#16 NORTH WALES WATER AUTHORITY NORTH WALES 72,496 64 D
#17 MAWC SWEENEY PLANT GREENSBURG 143,000 63 D
#18 VEOLIA WATER HARRISBURG 110,000 63 D
#19 MAWC YOUGH PLANT GREENSBURG 133,000 61 D
#20 CAPITAL REGION WATER HARRISBURG 66,540 61 D
#21 CHESTER WATER AUTHORITY CHESTER 140,437 59 D
#22 PA AMERICAN NORRISTOWN NORRISTOWN 88,885 59 D
#23 READING AREA WATER AUTHORITY READING 95,100 59 D
#24 STATE COLLEGE BORO WATER AUTH STATE COLLEGE 72,000 57 D
#25 LCA ALLENTOWN DIVISION ALLENTOWN 118,000 55 D
#26 PA AMERICAN WATER CO WEST MECHANICSBURG 105,127 55 D
#27 AQUA PA BENSALEM BRYN MAWR 59,001 53 F
#28 CITY OF LANCASTER LANCASTER 120,000 53 F
#29 AQUA PA MAIN SYSTEM BRYN MAWR 822,600 50 F
#30 PHILADELPHIA WATER DEPARTMENT PHILADELPHIA 1,600,000 48 F
#31 Philadelphia Water Utilities Philadelphia 1,584,000 48 F
#32 NORTH PENN WATER AUTHORITY LANSDALE 91,941 47 F