The Power of Information

National Drinking Water Database


436 systems serving 410,630 people

This drinking water quality report shows results of tests conducted by water utilities in Vermont, provided to the Environmental Working Group (EWG) by the Vermont Department of Environmental Conservation. It is part of EWG's national database that includes 47,667 drinking water utilities and 20 million test results from 45 states and the District of Columbia. Water utilities nationwide detected more than 300 pollutants between 2004 and 2009. More than half of these chemicals are unregulated, legal in any amount. Despite this widespread contamination, the federal government invests few resources in protecting rivers, reservoirs, and groundwater from pollution in the first place. The information below summarizes drinking water quality for this state.

Water Utilities
Population Served
Detected Chemicals
Exceed health guidelines*
Exceed Legal Limits*
Unregulated chemicals detected
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

28 Contaminants Exceeding Health Based Limits

Contaminants detected in Vermont drinking water above health guidelines, according to an Environmental Working Group analysis of data obtained from state water authorities

Number of Systems
At Any Level Above Health Limits At Any Level Above Health Limits
Lead (total)314,926314,926277277
Total trihalomethanes (TTHMs)303,363226,254232113
Total haloacetic acids (HAAs)214,812214,812113113
Dichloroacetic acid211,436211,436110110
Trichloroacetic acid206,221142,90410852
Alpha particle activity (excl radon and uranium)108,640108,640166166

Water Utilities in Vermont Reporting Chemicals Exceeding Health Guidelines

Water utilities in Vermont reporting chemicals exceeding health guidelines, according to an Environmental Working Group analysis of data obtained from state water authorities, include:

Chemicals tested
Chemicals found
Chemicals exceeding
health guidelines
Mountain Water Company2,4001342116
Battleground Condominium286672114
Mount Snow Village Association1231382013
Dairy Center341542012
Waterbury Village Water4,9951231712
Derby Center Water System1,100872012
Smugglers Notch Water System2,9601321812
North Hero Water System1,8001281811
Timbercreek Condominium1,1161301711
Barton Water System950831811
Pinecrest Mobile Home Park1391601711
Johnson Village Water Dept1,3501181611
St George Villas420741811
Jackson Gore Okemo1,6951231410
Telemark Village123891510
Commons The79841310
Wilmington Water Dist1,4001031610
Brattleboro Water Dept12,2001221810
Thetford Water Coop Inc1151221410
Alburg Fire District 187911810

Sources of Vermont Drinking Water Contaminants

The contaminants identified in Vermont drinking water come from a wide variety of sources, including agriculture, industry, water treatment plants, and polluted storm runoff from urban areas.

71Total Contaminants Detected (2004 - 2009)
13Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Arsenic (total), Cyanide, Nitrate & nitrite, Nitrate, Nitrite, Atrazine, 2,4-D, Bromomethane, m-Dichlorobenzene, o-Dichlorobenzene, p-Dichlorobenzene, Ethylbenzene, Perchlorate

22Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Copper, Nitrate & nitrite, Lead (total), Arsenic (total), Tetrachloroethylene, MTBE, Nitrite, Xylenes (total), Antimony (total), Mercury (total inorganic), m- & p- Xylene, Dichloromethane (methylene chloride), Cyanide, o-Xylene, Molybdenum, p-Dichlorobenzene, 2,4-D, Naphthalene, n-Propylbenzene, Butyl Benzylphthalate, sec-Butylbenzene

53Industrial Pollutants

Aluminum, Arsenic (total), Barium (total), Chromium (total), Cyanide, Lead (total), Manganese, Mercury (total inorganic), Nitrate & nitrite, Nitrate, Nitrite, Antimony (total), Molybdenum, Vanadium, Asbestos, p-Isopropyltoluene, Di(2-ethylhexyl) phthalate, Chloromethane, Dichlorodifluoromethane, Chloroethane, Naphthalene, MTBE, Butyl Benzylphthalate, Pentachlorophenol, cis-1,2-Dichloroethylene, 1,2,4-Trimethylbenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, sec-Butylbenzene, Bromochloromethane, Xylenes (total), Dichloromethane (methylene chloride), m-Dichlorobenzene, p-Dichlorobenzene, 1,1,1-Trichloroethane, Carbon tetrachloride, Trichloroethylene, Tetrachloroethylene, Toluene, Ethylbenzene, Isopropylbenzene, o-Xylene, n-Propylbenzene, m- & p- Xylene, Alpha particle activity (excl radon and uranium), Alpha particle activity (incl. radon & uranium), Combined Uranium (mg/L), Combined Radium (-226 & -228), Radium-226, Radium-228, Perchlorate, Combined Uranium (pCi/L), Gross beta particle activity (pCi/L)

18Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Total haloacetic acids (HAAs), Chloroform, Bromodichloromethane, Dibromochloromethane, Dichloroacetic acid, Trichloroacetic acid, Bromoform, Dibromoacetic acid, Monochloroacetic acid, Bromochloroacetic acid, Monobromoacetic acid, Di(2-ethylhexyl) phthalate, Chloromethane, Asbestos, Bromochloromethane, Chloroethane, m-Dichlorobenzene

22Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Copper, Nitrate & nitrite, Barium (total), Lead (total), Arsenic (total), Manganese, Radium-228, Radium-226, Alpha particle activity (excl radon and uranium), Combined Radium (-226 & -228), Gross beta particle activity (pCi/L), Combined Uranium (pCi/L), Chromium (total), Alpha particle activity (incl. radon & uranium), Combined Uranium (mg/L), Aluminum, Nitrite, Radon, Mercury (total inorganic), Chloromethane, Cyanide

22Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Lead (total), Molybdenum, Vanadium, p-Isopropyltoluene, Chloromethane, Dichlorodifluoromethane, Bromomethane, Chloroethane, Naphthalene, MTBE, Butyl Benzylphthalate, 1,2,4-Trimethylbenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, sec-Butylbenzene, Bromochloromethane, Bromochloroacetic acid, m-Dichlorobenzene, Isopropylbenzene, n-Propylbenzene, Radon, Perchlorate

Testing Summary for Vermont

The federal government has set standards for some of the pollutants found in tap water supplies.

Contaminants reported as tested by water suppliers in Vermont199
 Contaminants tested due to federal law: 95
 Contaminants tested in addition to those required by federal law: 104

Violation Summary for Vermont

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Vermont since 2004

Violation TypeNumber of Violations
Failure to monitor regularly2,195
Failure to monitor, Routine Major (Coliform bacteria)458
Over maximum contaminant level, Average273
Maximum contaminant level, Monthly (Coliform bacteria)252
Monitoring and Reporting Disinfection Byproduct Rule217
Failure to report information to the public or state agency in the Consumer Confidence Report180
Failure to monitor, Routine Minor (Coliform bacteria)98
Follow-up and Routine Tap Sampling56
Failure to monitor, Repeat Major (Coliform bacteria)38
Initial Tap Sampling for Lead and Copper26
Public Notification Violation for National Primary Drinking Water Regulations24
Optimal Corrosion Control Treatment Study Recommendation20
Failure to monitor, Repeat Minor (Coliform bacteria)18
Maximum contaminant level, Acute (Coliform bacteria)16
Initial Water Quality Parameter Monitoring and Reporting15
Initial, Follow-up, or Routine Source Water Treatment Monitoring and Reporting11
Public Education11
Failure to monitor or report, Routine/Repeat (Indicators of microbial or virus contamination)4
Failure to Filter (Surface Water Treatment Rule)2
Treatment Technique No Certif. Operator2
Treatment Technique (Surface Water Treatment Rule)2
Optimal Corrosion Control Treatment Installation/Demonstration2
Over maximum contaminant level, Single Sample1
Filter Turbidity Reporting1