Know Your Environment. Protect Your Health.

MTBE

Chambers, Village of

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.260 ppb21ND - 0.519 ppb
2019ND10ND
2020ND10ND
20213.87 ppb21ND - 7.74 ppb
2022ND10ND
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
2018-01-165308120.519 ppb
2018-05-21542551ND
2019-01-23592449ND
2020-01-21650582ND
2021-01-197129887.74 ppb
2021-05-24729310ND
2022-01-03778892ND
2023-01-17841989ND