Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

MTBE

Perkasie Regional Authority

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.

MORE ABOUT THIS CONTAMINANT

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND110ND
2015ND110ND
2016ND110ND
2017ND100ND
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-03-11L2515685-1ND
2014-03-11L2515685-2ND
2014-06-10L5101092-11ND
2014-06-10L5101092-12ND
2014-09-09L5170431-1ND
2014-09-09L5170431-5ND
2014-09-09L5170431-4ND
2014-09-09L5170431-2ND
2014-09-09L5170431-3ND
2014-12-09L5292845-2ND
2014-12-09L5292845-1ND
2015-03-1012501662ND
2015-03-1012501716ND
2015-06-0912867651ND
2015-06-0912867705ND
2015-09-0813250299ND
2015-09-0813250245ND
2015-09-0813250191ND
2015-09-0813250083ND
2015-09-0813250137ND
2015-12-0813619674ND
2015-12-0813619620ND
2016-03-0813972771ND
2016-03-0813972719ND
2016-06-0714389088ND
2016-06-0714389036ND
2016-09-1314889590ND
2016-09-1314889642ND
2016-09-1314889486ND
2016-09-1314889538ND
2016-09-1314889434ND
2016-12-0615356048ND
2016-12-0615355996ND
2017-03-0715780154ND
2017-03-0715780102ND
2017-06-0616240779ND
2017-06-0616240727ND
2017-09-0516710992ND
2017-09-0516710940ND
2017-09-0516710888ND
2017-09-0516711044ND
2017-12-0517146835ND
2017-12-0517146783ND