Hopkinton, Massachusetts Water Quality Report
Water quality data for 3 water systems serving 13,041 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.005 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFOA | 0.007 | 0.004 ug/L | 0.090 ug/L(EWG) | 180% | Above limit |
| PFPeA | 0.006 | 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
Resolved Violations (500)
52
Jun 1, 2021
52
Jun 1, 2021
27
Jan 1, 2020 — Mar 31, 2020
27
Jan 1, 2020 — Mar 31, 2020
27
Apr 1, 2019 — Jun 30, 2019
+ 495 more resolved violations
Frequently Asked Questions
Is Hopkinton tap water safe to drink?
Hopkinton'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 Hopkinton tap water?
5 contaminants have been detected in Hopkinton's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Hopkinton?
Install a water filter rated for the specific contaminants found in Hopkinton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Hopkinton have any water quality violations?
Yes, Hopkinton currently has 22 active violations. See the violations section above for details.