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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Compton Water Department

1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

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

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

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