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Vermont Water Quality
120
Utilities in database
0.4M
Residents served
50%
On private wells
2
Key contaminants tracked
Drinking Water in Vermont
Vermont has 120 community water systems serving approximately 0.4 million residents. Primary water sources include groundwater. The most commonly reported contaminants include nitrates, disinfection byproducts. 50% of Vermont residents rely on private wells. DEC holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Vermont
1–25 of 120Burlington Dept Public Works Water Div
VT0005053 · 42,000 served
South Burlington City Water System
VT0005091 · 19,500 served
Rutland City Water Dept
VT0005229 · 18,500 served
Barre City Water System
VT0005254 · 14,000 served
Bennington Water Dept
VT0005016 · 13,250 served
Brattleboro Water Dept
VT0005290 · 12,200 served
Colchester Water System
VT0021810 · 11,299 served
St Albans Water Dept
VT0005130 · 10,200 served
Springfield Water Dept
VT0005333 · 9,800 served
Essex Town Water System
VT0005065 · 9,734 served
Essex Jct Water Dept
VT0005066 · 9,500 served
Middlebury Water Dept
VT0005004 · 9,379 served
Montpelier Water System
VT0005272 · 8,912 served
Winooski Water Dept
VT0005102 · 8,500 served
Colchester Fire District 2
VT0005059 · 8,300 served
Milton Water Dept
VT0005079 · 8,260 served
Hartford Water Dept
VT0005319 · 7,600 served
Williston Water Dept
VT0005098 · 7,259 served
Jay Peak Water System
VT0005565 · 6,740 served
Winhall Stratton F D 1
VT0005305 · 6,200 served
Edward Farrar Utility District
VT0005284 · 6,003 served
Shelburne Water Dept
VT0005087 · 5,764 served
Northfield Water Dept
VT0005275 · 5,145 served
Vergennes Panton Water District
VT0005010 · 5,100 served
St Johnsbury Water System
VT0005045 · 5,000 served
Key Contaminant Concerns in Vermont
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always from human activity — nitrate interferes with the blood's ability to carry oxygen. The United States produces over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
Vermont Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 120 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-24