Know Your Environment. Protect Your Health.

MTBE

Calif State Polytechnical Univ - Pomona

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.

 

6

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
2021N/A00N/A
2022ND20ND
2023ND10ND

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
2018-12-04CA1910022_005_005-201812041250ND
2019-12-17CA1910022_005_005-201912171100ND
2020-12-08CA1910022_005_005-202012081210ND
2022-06-07CA1910022_005_005-202206071035ND
2022-12-06CA1910022_005_005-202212061050ND
2023-12-05CA1910022_005_005-202312051015ND