Know Your Environment. Protect Your Health.

MTBE

Brookeland Fresh Water Supply District

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.

 

13

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
2021ND30ND
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
2018-12-10Q1850387012ND
2018-12-10Q1850387013ND
2019-07-10Q1943726006ND
2019-07-10Q1943726008ND
2020-04-07Q2014006001ND
2020-04-07Q2014006003ND
2021-09-01Q2123830006ND
2021-09-01Q2123830008ND
2021-12-01Q2133437001ND
2022-02-07Q2203973003ND
2022-08-16Q2224005001ND
2023-06-26Q2324301001ND
2023-06-26Q2324301003ND