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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

City of Torrance Water Department

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

MORE ABOUT THIS CONTAMINANT

 

65

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND80ND
2016ND50ND
2017ND30ND
2018ND180ND
2019ND180ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-059588-016-0950ND
2014-02-059588-011-1015ND
2014-02-059588-009-1008ND
2014-04-229588-016-1025ND
2014-06-249588-011-1008ND
2014-06-249588-009-1008ND
2014-06-249588-009-1000ND
2014-07-309588-016-1035ND
2014-07-309588-011-1020ND
2014-07-309588-010-1015ND
2014-07-309588-009-1010ND
2014-11-259588-016-1000ND
2014-12-309588-009-1010ND
2015-03-319588-009-0901ND
2015-03-319588-016-0922ND
2015-04-219588-009-0933ND
2015-05-209588-016-0930ND
2015-07-299588-009-0934ND
2015-07-299588-016-1004ND
2015-10-289588-009-0926ND
2015-10-289588-016-0951ND
2016-02-239588-016-0932ND
2016-03-029588-009-0919ND
2016-05-129588-009-0906ND
2016-05-129588-016-0930ND
2016-09-279588-016-0910ND
2017-01-319588-016-0920ND
2017-04-199588-016-0915ND
2017-10-109588-016-0933ND
2018-01-309588-016-0930ND
2018-02-239588-023-0935ND
2018-02-239588-024-0955ND
2018-04-199588-016-0950ND
2018-06-149588-010-0945ND
2018-06-149588-011-0940ND
2018-06-149588-024-0935ND
2018-06-149588-023-1012ND
2018-08-029588-023-1000ND
2018-08-029588-010-0940ND
2018-08-029588-011-0942ND
2018-08-029588-024-0933ND
2018-08-029588-016-1030ND
2018-11-089588-023-0948ND
2018-11-089588-011-1045ND
2018-11-089588-016-1005ND
2018-11-089588-010-1020ND
2018-11-089588-024-1037ND
2019-01-239588-023-1010ND
2019-01-239588-010-0948ND
2019-01-239588-016-1033ND
2019-01-239588-024-0940ND
2019-01-239588-011-0945ND
2019-05-019588-024-0934ND
2019-05-019588-016-0957ND
2019-05-019588-010-0945ND
2019-05-019588-011-0940ND
2019-08-149588-010-0933ND
2019-08-149588-016-1130ND
2019-08-149588-023-0955ND
2019-08-149588-011-0929ND
2019-10-309588-024-0928ND
2019-10-309588-010-0935ND
2019-10-309588-016-1028ND
2019-10-309588-023-1005ND
2019-10-309588-011-0950ND