Know Your Environment. Protect Your Health.

MTBE

Caddo Lake Water Supply Corporation

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
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-09-20Q1837726002ND
2018-09-20Q1837726003ND
2019-06-10Q1933418005ND
2019-06-10Q1933418007ND
2020-10-22Q2041223001ND
2020-10-22Q2041223003ND
2021-05-24Q2113525008ND
2021-05-24Q2113525010ND
2022-11-22Q2235079008ND
2022-11-22Q2235079010ND
2023-06-29Q2325157001ND
2023-06-29Q2325157003ND