Nashua, New Hampshire Water Quality Report
Water quality data for 73 water systems serving 130,571 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFOA | 0.008 | 0.004 ug/L | 0.090 ug/L(EWG) | 203% | Above limit |
| PFPeA | 0.008 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| lithium | 11.3 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 113% | Above guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (3)
45
Apr 16, 2023
45
Apr 16, 2023
45
Apr 16, 2023
Resolved Violations (997)
4A
Oct 11, 2024
2B
Oct 11, 2024
2B
Oct 11, 2024
2B
Oct 11, 2024
2B
Oct 11, 2024
+ 992 more resolved violations
Frequently Asked Questions
Is Nashua tap water safe to drink?
Nashua's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Nashua tap water?
5 contaminants have been detected in Nashua's water supply across 73 water systems. See the full contaminant table above for details.
How can I improve my water quality in Nashua?
Install a water filter rated for the specific contaminants found in Nashua's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Nashua have any water quality violations?
Yes, Nashua currently has 81 active violations. See the violations section above for details.