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EWG's Tap Water Database — 2019 UPDATE

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MTBE

Whittier Water Department

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.

 

104

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
2013ND200ND
2014ND210ND
2015ND200ND
2016ND140ND
2017ND200ND

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
2012-03-139588-008-0925ND
2012-05-099588-003-0830ND
2012-05-099588-009-0830ND
2012-06-209588-008-0950ND
2012-06-209588-010-1000ND
2012-06-209588-011-0920ND
2012-09-059588-008-1050ND
2012-09-059588-013-1130ND
2012-12-069588-008-0930ND
2013-01-159588-022-1000ND
2013-02-199588-022-0800ND
2013-03-139588-008-0925ND
2013-03-199588-022-1100ND
2013-04-169588-022-0830ND
2013-05-079588-022-1000ND
2013-05-149588-003-1000ND
2013-05-149588-009-1030ND
2013-06-259588-008-0935ND
2013-06-259588-010-0945ND
2013-06-259588-011-0925ND
2013-07-249588-022-0730ND
2013-08-079588-022-0830ND
2013-09-179588-008-1025ND
2013-09-179588-013-1040ND
2013-09-189588-022-0830ND
2013-10-099588-022-1030ND
2013-11-069588-022-0830ND
2013-12-049588-022-1030ND
2013-12-109588-008-0930ND
2014-01-079588-022-1000ND
2014-02-119588-022-0830ND
2014-03-119588-008-0925ND
2014-03-119588-022-1100ND
2014-04-099588-022-1000ND
2014-05-209588-022-0830ND
2014-05-289588-003-0900ND
2014-05-289588-009-1000ND
2014-06-109588-022-1000ND
2014-06-119588-008-0910ND
2014-06-119588-010-0920ND
2014-06-119588-011-0950ND
2014-07-089588-022-0900ND
2014-08-079588-022-1000ND
2014-09-049588-013-1000ND
2014-09-179588-022-0900ND
2014-09-299588-008-1040ND
2014-10-169588-022-0930ND
2014-11-109588-022-0830ND
2014-12-099588-008-0915ND
2014-12-179588-022-0900ND
2015-01-149588-022-0830ND
2015-02-099588-022-1000ND
2015-03-109588-022-0800ND
2015-03-179588-008-0930ND
2015-04-159588-022-0820ND
2015-05-069588-022-0830ND
2015-05-199588-009-0800ND
2015-06-109588-008-0950ND
2015-06-109588-010-1010ND
2015-06-109588-011-1000ND
2015-06-249588-022-0930ND
2015-07-149588-022-0800ND
2015-08-119588-022-0850ND
2015-09-109588-008-0910ND
2015-09-109588-013-0930ND
2015-09-169588-022-1000ND
2015-10-199588-022-0800ND
2015-11-109588-022-0830ND
2015-12-029588-022-0900ND
2015-12-049588-008-0940ND
2016-01-139588-022-0930ND
2016-02-099588-022-0800ND
2016-03-089588-022-1117ND
2016-03-229588-008-0940ND
2016-05-119588-009-0845ND
2016-06-149588-008-0920ND
2016-06-149588-010-0925ND
2016-06-149588-011-0930ND
2016-09-139588-013-0935ND
2016-09-209588-022-1000ND
2016-10-109588-022-0905ND
2016-11-049588-008-0915ND
2016-11-219588-022-0942ND
2016-12-069588-022-0830ND
2017-01-249588-022-1236ND
2017-02-149588-022-1040ND
2017-03-089588-008-0905ND
2017-03-139588-022-0945ND
2017-04-119588-022-1038ND
2017-05-019588-022-0845ND
2017-05-099588-009-0842ND
2017-06-069588-022-0730ND
2017-06-149588-008-0910ND
2017-06-149588-010-0905ND
2017-06-149588-011-0955ND
2017-07-179588-022-0820ND
2017-08-159588-022-0740ND
2017-09-129588-008-0910ND
2017-09-129588-013-0925ND
2017-09-189588-022-0822ND
2017-10-169588-022-0811ND
2017-11-069588-022-0750ND
2017-12-059588-022-0807ND
2017-12-119588-008-0940ND