Know Your Environment. Protect Your Health.

MTBE

City of Bridge City

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
2018ND20ND
2019ND10ND
2020ND20ND
2021ND30ND
2022ND10ND
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
2018-02-21AE15081ND
2018-08-09AE36378ND
2019-01-24AE51297ND
2020-02-03AE96559ND
2020-02-03AE96565ND
2021-02-24AF44219ND
2021-04-22AF51142ND
2021-08-18AF66902ND
2022-01-26AF81952ND
2023-02-21AG29685ND
2023-02-21AG29689ND