Know Your Environment. Protect Your Health.

MTBE

East Alton

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-01-168013018-01ND
2018-04-038041291-01ND
2018-08-288085787-01ND
2018-10-228105047-01ND
2019-01-229014063-01ND
2019-04-299050017-01ND
2019-07-249075426-01ND
2019-10-229105187-01ND
2020-01-070011946-01ND
2020-04-290050025-01ND
2020-08-240085846-01ND
2020-10-060101784-01ND
2021-01-25EA04364-01ND
2021-04-20ED04366-01ND
2021-07-20EG04577-01ND
2021-10-26EJ05305-01ND
2022-01-11FA02423-01ND
2022-04-19FD03918-01ND
2022-08-01FH00772-01ND
2022-10-25FJ04962-01ND
2023-01-23GA04262-01ND
2023-04-25GD04539-01ND
2023-07-31GH00321-01ND
2023-10-17GJ03547-01ND