Know Your Environment. Protect Your Health.

MTBE

Lakeview Ranchettes

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
2018-02-22Q1807472003ND
2018-11-07Q1844597001ND
2019-03-27Q1912550003ND
2019-09-19Q1966930001ND
2020-11-18Q2045700001ND
2020-11-18Q2045700004ND
2021-06-14Q2115431010ND
2021-06-14Q2115431012ND
2022-08-08Q2222742006ND
2022-11-28Q2235191001ND
2023-11-13Q2348391001ND
2023-11-13Q2348391003ND