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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
68/100
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
8 (25%)
C
14 (44%)
D
6 (19%)
F
4 (12%)

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 EASTON AREA WATER SYSTEM EASTON 96,867 80 B
#2 PAW CEASETOWN SCRANTON 58,467 79 B
#3 CITY OF BETHLEHEM BETHLEHEM 117,259 79 B
#4 LEBANON WATER AUTH LEBANON 57,000 78 B
#5 HAMPTON SHALER WATER AUTHORITY ALLISON PARK 61,949 77 B
#6 WEST VIEW WATER AUTHORITY PITTSBURGH 200,000 75 B
#7 YORK WATER CO YORK 206,762 75 B
#8 City of Pittsburgh Water Department Pittsburgh 302,000 75 B
#9 LOWER BUCKS CO JOINT MUN AUTH LEVITTOWN 63,007 73 C
#10 PA AMER WATER CO LAKE SCRANTON WILKES BARRE 134,570 73 C
#11 PA AMER WATER CO-PITTSBURGH MCMURRAY 686,000 73 C
#12 MAWC SWEENEY PLANT GREENSBURG 143,000 73 C
#13 PITTSBURGH WATER & SEWER AUTH PITTSBURGH 520,000 72 C
#14 WILKINSBURG-PENN JT WATER AUTH WILKINSBURG 125,000 72 C
#15 CAPITAL REGION WATER HARRISBURG 66,540 72 C
#16 VEOLIA WATER HARRISBURG 110,000 71 C
#17 MAWC YOUGH PLANT GREENSBURG 133,000 69 C
#18 CHESTER WATER AUTHORITY CHESTER 140,437 68 C
#19 ERIE CITY WATER AUTHORITY ERIE 220,001 68 C
#20 NORTH WALES WATER AUTHORITY NORTH WALES 72,496 67 C
#21 PA AMERICAN WATER CO WEST MECHANICSBURG 105,127 66 C
#22 STATE COLLEGE BORO WATER AUTH STATE COLLEGE 72,000 65 C
#23 PA AMERICAN NORRISTOWN NORRISTOWN 88,885 64 D
#24 READING AREA WATER AUTHORITY READING 95,100 64 D
#25 Philadelphia Water Utilities Philadelphia 1,584,000 62 D
#26 AQUA PA BENSALEM BRYN MAWR 59,001 61 D
#27 LCA ALLENTOWN DIVISION ALLENTOWN 118,000 59 D
#28 ALTOONA WATER AUTHORITY ALTOONA 62,500 59 D
#29 CITY OF LANCASTER LANCASTER 120,000 53 F
#30 PHILADELPHIA WATER DEPARTMENT PHILADELPHIA 1,600,000 50 F
#31 NORTH PENN WATER AUTHORITY LANSDALE 91,941 47 F
#32 AQUA PA MAIN SYSTEM BRYN MAWR 822,600 43 F