Know Your Environment. Protect Your Health.

MTBE

Browns Lake Mobile Home Ct

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.40 ppb222.30 ppb - 2.50 ppb
20192.00 ppb221.80 ppb - 2.20 ppb
20202.00 ppb221.90 ppb - 2.10 ppb
20212.00 ppb221.80 ppb - 2.20 ppb
20220.950 ppb110.950 ppb
20231.15 ppb221.10 ppb - 1.20 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
2018-06-043861690012.30 ppb
2018-06-043861680012.50 ppb
2019-06-114513300011.80 ppb
2019-06-114513290012.20 ppb
2020-06-095090050021.90 ppb
2020-06-095090050012.10 ppb
2021-05-245632020011.80 ppb
2021-05-245632030012.20 ppb
2022-07-1213230600.950 ppb
2023-08-15CB09749-041.10 ppb
2023-08-15CB09749-021.20 ppb