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EWG's Tap Water Database — 2021 UPDATE

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MTBE

Hahira

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016ND60ND
2017ND30ND
2018ND20ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-10-21AI58086ND
2015-01-29AI63739ND
2015-04-20AI75249ND
2015-07-28AI84453ND
2016-03-31AJ09268ND
2016-03-31AJ09267ND
2016-03-31AJ09266ND
2016-06-09AJ14138ND
2016-08-05AJ21489ND
2016-11-01AJ32924ND
2017-02-06AJ46094ND
2017-02-06AJ46093ND
2017-04-19AJ53780ND
2018-05-11AJ89443ND
2018-05-11AJ89442ND
2019-05-16AK17840ND
2019-05-16AK17841ND