Know Your Environment. Protect Your Health.

MTBE

Crystal Farms Water Supply Corporation

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND40ND
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
2018-06-20Q1824485006ND
2019-07-25Q1947858003ND
2019-10-31Q1974664007ND
2020-03-12Q2010438003ND
2020-03-12Q2010438005ND
2020-05-21Q2020365003ND
2020-08-31Q2034597004ND
2021-05-20Q2113262004ND
2021-05-20Q2113262006ND
2022-02-22Q2206222003ND
2022-02-22Q2206222005ND
2023-09-07Q2338597004ND
2023-09-07Q2338597006ND