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EWG's Tap Water Database — 2021 UPDATE

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MTBE

IL American - Pekin

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
2013N/A00N/A
2014ND70ND
2015ND10ND
2016N/A00N/A
2017ND70ND
2018ND20ND
2019N/A00N/A

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
2014-04-2125163501ND
2014-04-2125164001ND
2014-04-2125163301ND
2014-04-2825164201ND
2014-04-2825164401ND
2014-04-2825164701ND
2014-04-2825165101ND
2015-04-2228596301ND
2017-04-0435269201ND
2017-04-0435269401ND
2017-04-1135269301ND
2017-04-1135269501ND
2017-04-1135269601ND
2017-04-1135269701ND
2017-04-1735210801ND
2018-10-3018J0987-01_02ND
2018-10-3018J0987-02_02ND