Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

MTBE

Sands Point

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

 

140

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015ND190ND
2016ND220ND
2017ND300ND
2018ND240ND
20190.0208 ppb251ND - 0.520 ppb

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
2014-03-111403728-002-POCSND
2014-03-111403728-003-POCSND
2014-03-111403728-004-POCSND
2014-03-111403728-005-POCSND
2014-03-111403728-001-POCSND
2014-05-131405909-002-POCSND
2014-05-131405909-005-POCSND
2014-05-131405909-001-POCSND
2014-05-131405909-004-POCSND
2014-05-131405909-003-POCSND
2014-09-021409077-002-POCSND
2014-09-021409077-001-POCSND
2014-09-021409077-004-POCSND
2014-09-02140907-003-POCSND
2014-09-021409077-005-POCSND
2014-11-181411C18-003-POCSND
2014-11-181411C18-002-POCSND
2014-11-181411C18-005-POCSND
2014-11-181411C18-001-POCSND
2014-11-181411C18-004-POCSND
2015-03-171503B53-002-POCSND
2015-03-171503B53-004-POCSND
2015-03-171503B53-001-POCSND
2015-03-171503B53-003-POCSND
2015-03-171503B53-005-POCSND
2015-06-161506D36-005-POCSND
2015-06-161506D36-002-POCSND
2015-06-161506D36-004-POCSND
2015-06-161506D36-001-POCSND
2015-06-161506D36-003-POCSND
2015-09-221509H02-004-POCSND
2015-09-221509H02-002-POCSND
2015-09-221509H02-003-POCSND
2015-09-221509H02-001-POCSND
2015-09-221509H02-005-POCSND
2015-11-171511D82-002-POCSND
2015-11-171511D82-004-POCSND
2015-11-171511D82-003-POCSND
2015-11-171511D82-001-POCSND
2016-03-221603H56-005-POCSND
2016-03-221603H56-003ND
2016-03-221603H56-004ND
2016-03-221603H56-001-POCSND
2016-03-221603H56-002ND
2016-05-051605483-004ND
2016-05-231605L07-005ND
2016-05-231605L07-001ND
2016-05-231605L07-003ND
2016-05-231605L07-002ND
2016-05-231605L07-004ND
2016-09-261609M44-003AND
2016-09-261609M44-004ND
2016-09-261609M44-005ND
2016-09-261609M44-001ND
2016-09-261609M44-003ND
2016-11-16704726002ND
2016-12-01705820005ND
2016-12-01705820004-POCND
2016-12-01705820005-POCSND
2016-12-01705820002-POCND
2016-12-01705820001-POCSND
2017-03-217013839001ND
2017-03-287014322001-POCSND
2017-03-287014322002AND
2017-03-287014322003ND
2017-03-287014322004ND
2017-05-027017523001ND
2017-05-117018457003-POCSND
2017-05-167018796002ND
2017-05-167018796003-POCSND
2017-05-167018796002-POCSND
2017-05-167018796001ND
2017-05-167018796004ND
2017-05-167018796003ND
2017-05-167018796001-POCSND
2017-05-167018796004-POCSND
2017-05-187019036001ND
2017-09-257030950006-POCSND
2017-09-257030950001-POCSND
2017-09-257030950005ND
2017-09-257030950003-POCSND
2017-09-25703950001-POCSND
2017-09-252902852-POCSND
2017-09-257030950004-POCSND
2017-09-257030950002-POCSND
2017-11-147035726004-POCSND
2017-11-147035726003-POCSND
2017-11-147035726005-POCSND
2017-11-147035726006-POCSND
2017-11-147035726001-POCSND
2017-11-147035726002-POCSND
2018-03-147045332004-POCSND
2018-03-147045332001-POCSND
2018-03-147045332006-POCSND
2018-03-147045332003-POCSND
2018-03-147045332002-POCSND
2018-03-147045332005-POCSND
2018-05-087050974001-POCSND
2018-05-087050974002-POCSND
2018-05-087050974003-POCSND
2018-05-087050974005-POCSND
2018-05-087050974004-POCSND
2018-05-087050974006-POCSND
2018-09-187065159002-POCSND
2018-09-187065159003-POCSND
2018-09-187065159001-POCSND
2018-09-187065159005-POCSND
2018-09-187065159006-POCSND
2018-09-187065159004-POCSND
2018-11-287072266001-POCSND
2018-11-2870772272001-POCSND
2018-11-287072272002-POCSND
2018-11-287072272003-POCSND
2018-11-287072272005-POCSND
2018-11-287072272004-POCSND
2019-03-197082838002ND
2019-03-197082838001ND
2019-03-197082838003ND
2019-03-197082847002ND
2019-03-197082847003ND
2019-03-197082847001ND
2019-06-047092017004-POCSND
2019-06-047092017006-POCSND
2019-06-047092017001-POCSND
2019-06-047092017005-POCSND
2019-06-047092017003-POCSND
2019-06-047092017002-POCSND
2019-09-1770105251001-POCSND
2019-09-1770105251002-POCSND
2019-09-1770105251003-POCSND
2019-09-1770105251006ND
2019-09-1770105251005ND
2019-09-1770105251004ND
2019-12-0370113924006ND
2019-12-0370113924002ND
2019-12-0370113924003ND
2019-12-0370113924005ND
2019-12-03701139240010.520 ppb
2019-12-1770113924004ND
2019-12-3070116784001ND