Know Your Environment. Protect Your Health.

MTBE

City of Gilmer

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-08-30Q1834899003ND
2018-08-30Q1834899006ND
2018-08-30Q1834899002ND
2019-10-10Q1972218001ND
2019-10-10Q1972218003ND
2019-10-10Q1972218005ND
2020-08-24Q2033825020ND
2020-08-24Q2033825022ND
2020-08-24Q2033825024ND
2021-04-01Q2108379004ND
2021-04-01Q2108379008ND
2021-04-01Q2108379006ND
2022-06-14Q2216508001ND
2022-10-24Q2231975002ND
2022-10-24Q2231975004ND
2023-06-15Q2322781013ND
2023-06-15Q2322781015ND
2023-06-15Q2322781017ND