Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

MTBE

City of Hereford

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND40ND
2016ND60ND
2017ND40ND

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
2012-03-08AB83427ND
2012-03-08AB83425ND
2012-05-30AB91325ND
2013-05-28Q1301569015ND
2013-05-28Q1301569018ND
2013-05-28Q1301569019ND
2014-02-12Q1404321004ND
2014-02-12Q1404321014ND
2014-02-12Q1404321012ND
2015-01-29Q1503619008ND
2015-01-29Q1503619001ND
2015-01-29Q1503619003ND
2015-01-29Q1503619006ND
2016-02-10Q1605969003ND
2016-02-10Q1605969002ND
2016-03-17Q1611196004ND
2016-03-17Q1611196002ND
2016-09-15Q1637842006ND
2016-10-18Q1644175005ND
2017-01-17Q1702053006ND
2017-04-10Q1714723001ND
2017-05-09Q1718998002ND
2017-07-13Q1728901008ND