Know Your Environment. Protect Your Health.

MTBE

Felsenthal Water and Sewer

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND40ND
2021ND40ND
2022ND40ND
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
2018-02-2718060003101ND
2018-05-0118123006001ND
2018-07-1018193006801ND
2018-10-2418298000201ND
2019-02-1819052004601ND
2019-07-1519198002101ND
2019-10-2819303001701ND
2020-01-2820030005207ND
2020-06-1620170004001ND
2020-07-2020204001201ND
2020-11-1720324002901ND
2021-01-2721028015101ND
2021-04-2121111000301ND
2021-08-3021245000201ND
2021-10-2621301005501ND
2022-03-02O195908-VOC-1ND
2022-05-24O198513-VOC-1ND
2022-07-26O200115-VOC-1ND
2022-10-24O203229-VOC-1ND