Know Your Environment. Protect Your Health.

MTBE

White Hawk Ecovillage Community

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
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND80ND
2022N/A00N/A
2023N/A00N/A

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
2021-03-30WH21POC1Q-3473ND
2021-03-30WH21POC1Q-2806ND
2021-05-17WH21POC2Q-3473ND
2021-05-17WH21POC2Q-2806ND
2021-09-08WH21POCND
2021-09-17WH21POC3Q-3473ND
2021-11-03WH21Q4POCSND
2021-12-06WH21POC4Q-3473ND