Know Your Environment. Protect Your Health.

MTBE

Sand Flat 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.

 

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
2018-03-05Q1808890006ND
2018-03-05Q1808890008ND
2018-03-05Q1808890004ND
2019-08-22Q1958681002ND
2019-08-22Q1958681004ND
2019-08-22Q1958681006ND
2020-06-11Q2023583005ND
2020-06-11Q2023583007ND
2020-10-08Q2039611001ND
2021-08-05Q2120790006ND
2021-08-05Q2120790010ND
2021-08-05Q2120790008ND
2022-05-19Q2214818003ND
2022-05-19Q2214818005ND
2022-05-19Q2214818007ND
2023-06-01Q2320545005ND
2023-06-01Q2320545007ND
2023-06-01Q2320545009ND