Know Your Environment. Protect Your Health.

MTBE

Shangri La Subdivision

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
2018-11-12Q1845459020ND
2018-11-12Q1845459022ND
2018-11-12Q1845459008ND
2019-06-19Q1937663005ND
2019-06-19Q1937663007ND
2019-06-19Q1937663009ND
2020-06-25Q2025622001ND
2020-06-25Q2025622003ND
2020-06-25Q2025622005ND
2021-06-16Q2115844002ND
2021-06-16Q2115844006ND
2021-06-16Q2115844004ND
2022-03-22Q2209179008ND
2022-03-22Q2209179010ND
2022-03-22Q2209179012ND
2023-02-21Q2307017001ND
2023-12-04Q2351630001ND
2023-12-04Q2351630003ND