New Hampshire Water Quality Ratings

TapWaterSafety has rated 2 public water systems in New Hampshire, serving a combined 212,573 residents. The statewide average grade is C.

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

Top water quality concerns in New Hampshire

  • PFAS contamination
  • Haloacetic acids (HAA9) significantly above health guideline
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Perfluorooctanoic acid (PFOA) significantly above health guideline

Cities in New Hampshire

Browse tap water quality reports by city. Click any city to see its grade, what's in the water, and recommended filters.

MANCHESTER
B 123,500
NASHUA
C 89,073

Grade distribution

A
0 (0%)
B
1 (50%)
C
1 (50%)
D
0 (0%)
F
0 (0%)

All rated utilities in New Hampshire

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

Rank Utility City Population Score Grade
#1 MANCHESTER WATER WORKS MANCHESTER 123,500 83 B
#2 PENNICHUCK WATER WORKS NASHUA 89,073 72 C