Know Your Environment. Protect Your Health.

MTBE

Town of Berlin

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.377 ppb31ND - 1.13 ppb
2019ND30ND
2020ND30ND
2021ND30ND
20220.325 ppb21ND - 0.650 ppb
20230.210 ppb31ND - 0.630 ppb

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
2018-03-28E180035100041.13 ppb
2018-03-28E18003510006ND
2018-03-28E18003510001ND
2019-08-29E20000856001ND
2019-08-29E20000856004ND
2019-08-29E20000856008ND
2020-07-27E21000258006ND
2020-07-27E21000258004ND
2020-07-27E21000258001ND
2021-05-06E21003198001ND
2021-05-06E21003199001ND
2021-05-06E21003200001ND
2022-02-16021622_01_0217222560.650 ppb
2022-02-16021622_02_021722259ND
2023-05-17E23002883060.630 ppb
2023-05-17E2300290201ND
2023-06-08E2300290106ND