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EWG's Tap Water Database — 2021 UPDATE

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MTBE

Compton 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.

MORE ABOUT THIS CONTAMINANT

 

88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND180ND
2016ND160ND
2017ND160ND
2018ND120ND
2019ND90ND

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
2014-01-139588-028-1118ND
2014-01-139588-011-0956ND
2014-01-139588-013-1042ND
2014-01-139588-014-1020ND
2014-01-139588-019-1105ND
2014-04-179588-014-1054ND
2014-04-179588-011-1010ND
2014-06-269588-019-1148ND
2014-07-299588-015-0933ND
2014-07-299588-014-1003ND
2014-07-299588-019-0946ND
2014-07-299588-011-0906ND
2014-10-319588-014-1019ND
2014-10-319588-009-0934ND
2014-10-319588-011-0958ND
2014-11-079588-015-1050ND
2014-11-079588-019-1018ND
2015-01-299588-019-1014ND
2015-01-299588-028-1127ND
2015-01-299588-009-0944ND
2015-01-299588-014-1103ND
2015-01-299588-013-1045ND
2015-01-299588-011-0959ND
2015-04-169588-019-0940ND
2015-04-169588-011-1039ND
2015-04-169588-014-1055ND
2015-07-249588-009-1005ND
2015-07-249588-019-1107ND
2015-07-249588-014-1305ND
2015-07-249588-011-0934ND
2015-10-229588-011-1028ND
2015-10-229588-014-0951ND
2015-10-229588-019-0938ND
2015-10-229588-009-1112ND
2015-10-229588-015-1010ND
2016-01-279588-011-0943ND
2016-01-279588-028-1107ND
2016-01-279588-019-1057ND
2016-01-279588-013-0958ND
2016-01-279588-014-1125ND
2016-04-289588-011-1030ND
2016-04-289588-014-1120ND
2016-04-289588-019-1110ND
2016-07-159588-011-1057ND
2016-07-159588-019-1048ND
2016-07-159588-014-1036ND
2016-10-059588-015-1103ND
2016-10-059588-011-1222ND
2016-10-059588-009-1045ND
2016-10-059588-019-1125ND
2016-10-059588-014-1202ND
2017-01-249588-014-1110ND
2017-01-249588-019-1043ND
2017-01-249588-013-1000ND
2017-01-249588-028-1055ND
2017-01-249588-011-1015ND
2017-04-269588-019-1035ND
2017-04-269588-014-1120ND
2017-04-269588-028-1145ND
2017-04-269588-011-1015ND
2017-07-189588-019-1035ND
2017-07-189588-011-0950ND
2017-10-059588-019-1020ND
2017-10-059588-011-1140ND
2017-10-059588-015-1045ND
2017-10-059588-028-1000ND
2017-12-119588-009-1032ND
2018-01-099588-009-1041ND
2018-01-099588-013-1049ND
2018-01-099588-028-0934ND
2018-01-099588-019-1001ND
2018-04-129588-019-1110ND
2018-04-129588-013-1015ND
2018-06-289588-011-1035ND
2018-06-289588-014-1015ND
2018-07-239588-019-0955ND
2018-07-239588-011-1035ND
2018-10-259588-019-1125ND
2018-12-199588-015-1130ND
2019-01-309588-028-1005ND
2019-01-309588-019-0945ND
2019-01-309588-009-1125ND
2019-04-259588-019-1013ND
2019-07-179588-011-1005ND
2019-07-179588-019-0930ND
2019-10-189588-019-1015ND
2019-10-189588-015-1040ND
2019-11-209588-013-1015ND