Know Your Environment. Protect Your Health.

MTBE

Aquarion Water Company of Connecticut - Stamford

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
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
2018-01-02201800021-VOC1ND
2019-01-07201900234-VOC1ND
2020-01-06202000154-VOC1ND
2021-01-04202100057-VOC1ND
2022-01-03202200073-VOC1ND
2022-07-18202212142-VOC1ND
2023-01-03202300189-VOC1ND
2023-08-07202313851-VOC1ND