Know Your Environment. Protect Your Health.

MTBE

Aquarion Water Company of Connecticut - Mystic

MTBE was used as gasoline oxygenation additive to boost the octane number. In 2005, MTBE was replaced by ethanol as a gasoline additive. MTBE causes cancers in rats.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 13 ppb

The EWG Health Guideline of 13 ppb for MTBE was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-07201806155-VOC1ND
2019-05-07201906220-VOC1ND
2019-10-28201917770-VOC1ND
2020-05-04202006226-VOC1ND
2020-10-19202017023-VOC1ND
2021-05-03202106129-VOC1ND
2021-05-03202106135-VOC1ND
2022-05-02202206699-VOC1ND
2022-08-29202215061-VOC1ND
2023-05-01202306890-VOC1ND
2023-06-20202310453-VOC1ND