Know Your Environment. Protect Your Health.

MTBE

Northcrest Addition

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
2018-09-11Q1836165002ND
2018-09-11Q1836165003ND
2019-10-21Q1973080001ND
2019-10-21Q1973080003ND
2020-10-13Q2040353001ND
2020-10-13Q2040353003ND
2021-10-07Q2127873005ND
2021-10-07Q2127873007ND
2022-10-17Q2231506006ND
2022-10-17Q2231506008ND
2023-05-22Q2319066001ND
2023-05-22Q2319066003ND