Know Your Environment. Protect Your Health.

MTBE

Hurley Water Company

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
2018ND70ND
2019N/A00N/A
2020N/A00N/A
2021ND40ND
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
2018-01-29EHS1800004992POC3ND
2018-01-29EHS1800005000POC4ND
2018-01-29EHS1800004999POC2ND
2018-01-29EHS1800004998POC1ND
2018-02-26EHS1800008848-01ND
2018-02-261800008849-01ND
2018-02-26EHS1800008850-01ND
2021-03-01EHS2100012541PND
2021-03-01EHS2100026492PND
2021-03-01EHS2100012536PND
2021-03-01EHS2100026493PND