Vermont Water Quality
Drinking water data for all 14 counties.
Avg Water Score
45.6
State Grade
D
Counties with Data
14
of 14 total
All Vermont Counties
| County | Water Score |
|---|---|
| Addison County | 86.0 |
| Essex County | 86.0 |
| Chittenden County | 62.6 |
| Grand Isle County | 51.8 |
| Orleans County | 50.9 |
| Franklin County | 50.0 |
| Bennington County | 43.6 |
| Orange County | 41.3 |
| Windsor County | 37.9 |
| Caledonia County | 34.9 |
| Rutland County | 27.0 |
| Windham County | 25.0 |
| Lamoille County | 22.6 |
| Washington County | 19.4 |
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Frequently Asked Questions
Which county in Vermont has the best water quality?
Addison County has the highest water quality score in Vermont at 86.0/100 (Grade: A), based on EPA SDWIS data.
Which county in Vermont has the most water violations?
Washington County has among the lowest water quality scores in Vermont at 19.4/100. See the individual county page for detailed violation history.
Is the tap water safe to drink in Vermont?
Vermont has an average water quality score of 45.6/100 based on EPA Safe Drinking Water Act compliance data. Individual county scores vary — check your specific county's page for detailed information.
What contaminants are found in Vermont water supplies?
Drinking water quality varies by county and water system. The EPA Safe Drinking Water Information System (SDWIS) tracks violations for contaminants like lead, nitrates, bacteria, and disinfection byproducts. See individual county pages for specific contaminant and violation history.
Data Source
Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.
Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.