Know Your Environment. Protect Your Health.

MTBE

Burr Oak

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
2018ND60ND
2019ND50ND
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

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
2018-03-08LLH69426ND
2018-05-30LLH82924ND
2018-08-27LLI01494ND
2018-11-19LLI15976ND
2018-11-19LLI15978ND
2018-11-19LLI15977ND
2019-03-07LLI28317ND
2019-06-27LLI46828ND
2019-07-24LLI52063ND
2019-10-10LLI70511ND
2019-12-27LLI86075ND