County Water Quality Report

Hartford County, Connecticut

3 public water systems serving 565,734 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
62/100
Utilities rated 3
Population served 565,734

Top water quality concerns in Hartford County

  • Haloacetic acids (HAA9) significantly above health guidelinein 3 of 3 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 3 of 3 utilities
  • Haloacetic acids (HAA5) significantly above health guidelinein 3 of 3 utilities
  • PFAS contaminationin 1 of 3 utilities
  • Arsenic detectedin 1 of 3 utilities

All utilities in Hartford County

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

C
67/100

NEW BRITAIN WATER DEPARTMENT

BERLIN · 73,534 residents

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

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C
65/100

METROPOLITAN DISTRICT COMMISSION

BERLIN · 390,887 residents

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

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F
53/100

CTWC - NORTHERN REG-WESTERN SYSTEM

EAST GRANBY · 101,313 residents

Top concern: PFAS contamination

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