Know Your Environment. Protect Your Health.

MTBE

Mystic Harbour

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND10ND
2021ND30ND
2022N/A00N/A
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
2018-10-23E19001359008ND
2018-12-034149226ND
2019-06-05E19004188006ND
2019-12-10LD121019ND
2020-07-21E21000206006ND
2021-08-25E22000687001ND
2021-08-25E22000687004ND
2021-08-25E22000687006ND
2023-06-27E2300318201ND
2023-06-27E2300318204ND
2023-11-080009SBTP05ND