Know Your Environment. Protect Your Health.

MTBE

Pine Valley Mutual Water Company

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019N/A00N/A
2020N/A00N/A
2021ND50ND
2022ND10ND
2023N/A00N/A

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
2018-10-15CA3710039_010_010-201810150925ND
2018-10-15CA3710039_001_001-201810150940ND
2018-10-15CA3710039_009_009-201810151025ND
2021-10-11CA3710039_006_006-202110111315ND
2021-10-11CA3710039_003_003-202110111240ND
2021-10-11CA3710039_010_010-202110111230ND
2021-10-12CA3710039_001_001-202110121150ND
2021-10-12CA3710039_005_005-202110121005ND
2022-10-27CA3710039_009_009-202210270845ND