Know Your Environment. Protect Your Health.

MTBE

No Kaweah 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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
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
2018-03-22CA5400506_004_004-201803221114ND
2018-10-22CA5400506_005_005-201810221055ND
2018-11-15CA5400506_006_006-201811151125ND
2018-11-15CA5400506_004_004-201811151115ND
2019-02-14CA5400506_006_006-201902141100ND
2019-03-07CA5400506_004_004-201903071220ND
2019-03-07CA5400506_005_005-201903071230ND
2020-03-17CA5400506_004_004-202003171120ND
2020-03-17CA5400506_006_006-202003171140ND
2020-03-25CA5400506_005_005-202003251130ND
2021-04-22CA5400506_004_004-202104220730ND
2021-04-22CA5400506_006_006-202104220733ND
2021-04-22CA5400506_005_005-202104220730ND
2022-04-07CA5400506_005_005-202204070700ND
2022-04-07CA5400506_004_004-202204070700ND
2022-04-07CA5400506_006_006-202204070700ND
2023-04-26CA5400506_004_004-202304261400ND
2023-04-26CA5400506_006_006-202304261400ND
2023-10-12CA5400506_005_005-202310121600ND