Exeter, New Hampshire Water Quality Report
Water quality data for 20 water systems serving 15,594 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.013 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.003 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFOA | 0.006 | 0.004 ug/L | 0.090 ug/L(EWG) | 150% | Above limit |
| PFOS | 0.004 | 0.004 ug/L | 0.300 ug/L(EWG) | 100% | Near limit |
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below 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 (4)
58
May 30, 2025
58
May 30, 2025
58
May 30, 2025
75
Jan 4, 2015
Resolved Violations (496)
75
Nov 9, 2023
75
Nov 9, 2023
75
Nov 9, 2023
75
Nov 9, 2023
75
Nov 9, 2023
+ 491 more resolved violations
Frequently Asked Questions
Is Exeter tap water safe to drink?
Exeter'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 Exeter tap water?
7 contaminants have been detected in Exeter's water supply across 20 water systems. See the full contaminant table above for details.
How can I improve my water quality in Exeter?
Install a water filter rated for the specific contaminants found in Exeter's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Exeter have any water quality violations?
Yes, Exeter currently has 46 active violations. See the violations section above for details.