Water Quality in Nashua, NH
Nashua's water quality meets all health guidelines. All tested contaminants are within safe levels.
Utility
PENNICHUCK WATER WORKS
People Served
87,932
MCL Violations
0
Last Updated
Sep 21, 2025
Quick Summary
Contaminants Detected
Understanding the Data
This data comes from your local water utility testing. The bar charts compare detected levels against health guidelines (HGL). Contaminants above the health guideline are shown by default and may require filtration. All other tested contaminants are within safe levels and can be viewed by expanding the section above.
Recommended Water Filters for Nashua
Based on Nashua's water quality data, these NSF-certified filters are recommended to remove contaminants above health guidelines.
Insinkerator LLC
F-1000S F-1000S
NSF Certified:
Capacity
5001 gal
Filter Life
17 mo
Flow Rate
0.75 gpm
Removes 12 contaminants:
1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine, Benzene +7 more
Insinkerator LLC
F-GN1100xx[2] F-GN1100xx[2]
NSF Certified:
Capacity
500 gal
Filter Life
2 mo
Flow Rate
0.75 gpm
Removes 9 contaminants:
1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine, Benzene +4 more
Insinkerator LLC
F-HC1100xx[2] F-HC1100xx[2]
NSF Certified:
Capacity
500 gal
Filter Life
2 mo
Flow Rate
0.75 gpm
Removes 9 contaminants:
1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine, Benzene +4 more
Insinkerator LLC
GN1100 GN1100
NSF Certified:
Capacity
5001 gal
Filter Life
17 mo
Flow Rate
0.75 gpm
Removes 12 contaminants:
1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine, Benzene +7 more
Frequently Asked Questions
Nashua's tap water currently meets all health guidelines. All 20 contaminants tested are within safe levels according to health-based guidelines. The water is considered safe to drink, though some people may still prefer filtered water for taste or extra protection.