Know Your Environment. Protect Your Health.

MTBE

Town of Oakland

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
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
2018-05-10E18004086004ND
2018-05-10E18004086006ND
2019-07-16E20000191006ND
2019-07-16E20000191008ND
2020-06-02E20003723004ND
2020-06-23E20003928006ND
2021-06-08E21003626004ND
2021-06-08E21003626006ND
2022-06-09E2201077004ND
2022-06-09E2201077006ND
2023-03-02E2300195701ND
2023-03-03E2300195703ND