The Power of Information

National Drinking Water Database

MTBE in New York

MTBE (methyl tert-butyl ether) is a fuel additive that had been used as an octane enhancer in unleaded gasoline; it contaminates groundwater due to spillage or leakage at gas stations, and has been banned or scheduled for phaseout in most states.

The Most Polluted Communities in New York

126 water utilities reported detecting MTBE in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average MTBE level

RankSystem Population Served Positive test results of total reported tests Average Level
1Meadows AT Cross River
Bedford Hills, NY
63010 of 2017.21 ppb
(0 to 54.47 ppb)
2Brettview Acres Water Co
Hopewell Junction, NY
9204 of 515.06 ppb
(0 to 43 ppb)
3Fox Run Condominiums
Carmel, NY
5505 of 145.4 ppb
(0 to 32 ppb)
4Barkers Mobile Home Colony
248 of 154.81 ppb
(0 to 29 ppb)
5Speculator V
Speculator, NY
4082 of 23.5 ppb
(3.3 to 3.7 ppb)
6Crum Elbow Apartments
Hyde Park, NY
15013 of 193.12 ppb
(0 to 22.35 ppb)
7Aqua NY of Sea Cliff
Sea Cliff, NY
15,00024 of 252.54 ppb
(0 to 4 ppb)
8Avalon Assisted Living
Wappingers Falls, NY
9418 of 182.5 ppb
(1 to 10 ppb)
9Windemere Highlands
Hurley, NY
4038 of 81.98 ppb
(0.75 to 5.8 ppb)
10Partridge Acres
Central Square, NY
1751 of 11.9 ppb
(1.9 ppb)

Health Based Limits for MTBE

California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.13 ppb

Violation Summary for MTBE in New York

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

Violation TypeNumber of Violations
Failure to monitor regularly148
Over maximum contaminant level, Average5
Over maximum contaminant level, Single Sample1