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County Water Quality Report

Allegheny County, Pennsylvania

6 public water systems serving 1,894,949 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
C
74/100
Utilities rated 6
Population served 1,894,949
Most recent test 2024
🇪🇺 Would fail EU standards 2 of 6

Top water quality concerns in Allegheny County

  • Haloacetic acids (HAA9) significantly above health guidelinein 4 of 6 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 4 of 6 utilities
  • Bromodichloromethane significantly above health guidelinein 3 of 6 utilities
  • Lead detected in source waterin 2 of 6 utilities
  • Haloacetic Acids (HAA5) significantly above health guidelinein 2 of 6 utilities

All utilities in Allegheny County

Click any utility for full grade card, contaminant data, and treatment plant contact info.

B
77/100

HAMPTON SHALER WATER AUTHORITY

ALLISON PARK · 61,949 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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B
75/100

WEST VIEW WATER AUTHORITY

PITTSBURGH · 200,000 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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B
75/100

City of Pittsburgh Water Department

Pittsburgh · 302,000 residents

Top concern: Lead detected in source water

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C
73/100

PA AMER WATER CO-PITTSBURGH

MCMURRAY · 686,000 residents

Top concern: Total trihalomethanes (TTHMs) significantly above health guideline

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C
72/100

PITTSBURGH WATER & SEWER AUTH

PITTSBURGH · 520,000 residents

Top concern: Lead detected in source water

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C
72/100

WILKINSBURG-PENN JT WATER AUTH

WILKINSBURG · 125,000 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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