Know Your Environment. Protect Your Health.

MTBE

Center Point Taylor System

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.

 

14

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
2021ND40ND
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
2018-01-11AE08972ND
2018-01-11AE08974ND
2019-07-17AE74876ND
2019-07-17AE74878ND
2020-10-14AF30641ND
2020-10-14AF30647ND
2021-03-24AF48152ND
2021-03-24AF48154ND
2021-05-25AF55355ND
2021-05-25AF55357ND
2022-03-30AF91304ND
2022-03-30AF91306ND
2023-09-25AG57465ND
2023-09-25AG57467ND