Know Your Environment. Protect Your Health.

MTBE

Momence

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND40ND
2021N/A00N/A
2022ND10ND
2023ND40ND

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
2018-04-038040787-02ND
2020-04-130042544-01ND
2020-10-120102506-01ND
2020-10-120102506-02ND
2020-10-120102506-03ND
2022-04-18FD03261-01ND
2023-05-02GE00870-01ND
2023-10-09GJ01797-01ND
2023-10-09GJ01797-02ND
2023-10-09GJ01797-03ND