County Water Quality Report

Hillsborough County, New Hampshire

2 public water systems serving 212,573 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
C
78/100
Utilities rated 2
Population served 212,573

Top water quality concerns in Hillsborough County

  • PFAS contaminationin 2 of 2 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 2 of 2 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 1 of 2 utilities
  • Perfluorooctanoic acid (PFOA) significantly above health guidelinein 1 of 2 utilities

All utilities in Hillsborough County

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

B
83/100

MANCHESTER WATER WORKS

MANCHESTER · 123,500 residents

Top concern: PFAS contamination

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C
72/100

PENNICHUCK WATER WORKS

NASHUA · 89,073 residents

Top concern: PFAS contamination

View report →