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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
51–75 of 120Proctor Water Dept
VT0005228 · 2,000 served
Castleton Fire District 1
VT0005212 · 1,940 served
Bethel Water Dept
VT0005315 · 1,929 served
Hardwick Town Water System
VT0005039 · 1,900 served
Berlin Municipal Water System
VT0021202 · 1,819 served
Richford Water System
VT0005126 · 1,700 served
North Bennington Water Dept
VT0005017 · 1,700 served
Enosburg Falls Water System
VT0005116 · 1,700 served
Jackson Gore Okemo
VT0020917 · 1,695 served
Pittsford Florence Water Dept
VT0005225 · 1,652 served
Barre Town Water System
VT0005566 · 1,638 served
Grand Isle Consolidated Water District
VT0020614 · 1,600 served
Fairfax Water Dept
VT0005117 · 1,550 served
Central Vermont Medical Center
VT0008300 · 1,528 served
Bradford Village Water System
VT0005170 · 1,512 served
Royalton Fire District 1
VT0005330 · 1,500 served
Village of Jericho Water System
VT0005077 · 1,410 served
Derby Center Water System
VT0005195 · 1,400 served
Wilmington Water Dist
VT0005310 · 1,400 served
Johnson Village Water Dept
VT0005156 · 1,350 served
Putney Water System
VT0020934 · 1,300 served
Mountain Green Condominium
VT0005539 · 1,300 served
Arlington Water Dept
VT0005013 · 1,250 served
Brighton Water System
VT0005105 · 1,200 served
Randolph Center Water System
VT0005177 · 1,138 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