Know Your Environment. Protect Your Health.

MTBE

Ivanhoe Public Utility District

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020ND10ND
2021N/A00N/A
2022ND40ND
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
2019-11-25CA5410019_004_004-201911251338ND
2020-08-25CA5410019_008_008-202008251148ND
2022-08-29CA5410019_004_004-202208291308ND
2022-08-29CA5410019_008_008-202208291338ND
2022-10-21CA5410019_007_007-202210211058ND
2022-12-13CA5410019_006_006-202212131420ND