Know Your Environment. Protect Your Health.

MTBE

Medway Water and Sewer Department

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND80ND
2022ND70ND
2023ND70ND

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 Result
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-06-25ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2020-06-16ND
2020-06-16ND
2020-06-16ND
2020-06-16ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-08-11ND
2021-10-25ND
2022-01-05ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-04-19ND