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EWG's Tap Water Database — 2021 UPDATE

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MTBE

IL American - Peoria

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015ND40ND
2016N/A00N/A
2017ND10ND
2018ND50ND
2019ND10ND

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
2014-01-0824380501ND
2015-01-0827920201ND
2015-07-0629623001ND
2015-07-0729623401ND
2015-07-0729624101ND
2017-01-0934212401ND
2018-01-1038124301ND
2018-06-1418F0582-01_02ND
2018-07-1140364601ND
2018-07-1140365101ND
2018-07-1140365901ND
2019-05-1419E0466-01ND