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EWG's Tap Water Database — 2019 UPDATE

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MTBE

Sandy City Water System

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND10ND
2014ND100ND
2015ND70ND
2016ND90ND
2017ND20ND

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 Result
2012-06-15ND
2012-06-15ND
2012-08-02ND
2012-08-03ND
2012-08-07ND
2012-08-08ND
2012-08-09ND
2012-08-28ND
2012-10-25ND
2012-11-27ND
2013-06-18ND
2014-02-20ND
2014-05-29ND
2014-05-29ND
2014-05-29ND
2014-05-29ND
2014-05-30ND
2014-05-30ND
2014-06-05ND
2014-06-06ND
2014-07-21ND
2015-04-06ND
2015-07-06ND
2015-07-06ND
2015-07-14ND
2015-07-16ND
2015-07-22ND
2015-11-09ND
2016-03-11ND
2016-03-11ND
2016-04-22ND
2016-06-06ND
2016-06-14ND
2016-06-17ND
2016-06-21ND
2016-06-22ND
2016-06-22ND
2017-06-22ND
2017-09-01ND