Question 1

Which county in Vermont has the best water quality?

Accepted Answer

Addison County has the highest water quality score in Vermont at 100.0/100 (Grade: A), based on EPA SDWIS data.

Question 2

Which county in Vermont has the most water violations?

Accepted Answer

Washington County has among the lowest water quality scores in Vermont at 99.4/100. See the individual county page for detailed violation history.

Question 3

Is the tap water safe to drink in Vermont?

Accepted Answer

Vermont has an average water quality score of 99.8/100 based on EPA Safe Drinking Water Act compliance data. Individual county scores vary — check your specific county's page for detailed information.

Question 4

What contaminants are found in Vermont water supplies?

Accepted Answer

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.

County	Water Score	Grade	Violations	Violation Rate
Addison County	100.0	A	0	0.0%
Chittenden County	100.0	B	7	4.9%
Essex County	100.0	A	0	0.0%
Bennington County	99.9	D	8	26.0%
Franklin County	99.9	D	4	16.6%
Grand Isle County	99.9	C	1	14.0%
Orange County	99.9	F	3	30.1%
Orleans County	99.9	C	3	14.9%
Caledonia County	99.8	F	7	47.2%
Windsor County	99.8	F	17	37.6%
Rutland County	99.6	F	37	79.9%
Windham County	99.6	F	33	90.9%
Lamoille County	99.5	F	15	105.2%
Washington County	99.4	F	67	137.0%

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