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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

San Gabriel Valley Water Company - Fontana

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

 

138

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND310ND
2015ND300ND
2016ND250ND
2017ND290ND
2018ND200ND
2019ND30ND

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
2014-01-089588-003-1130ND
2014-01-109588-001-1045ND
2014-01-229588-022-1145ND
2014-01-229588-023-1030ND
2014-01-229588-028-1110ND
2014-03-059588-020-1120ND
2014-03-199588-006-0910ND
2014-03-199588-007-1000ND
2014-03-269588-011-0900ND
2014-04-169588-043-0850ND
2014-04-169588-044-1100ND
2014-04-169588-045-1010ND
2014-04-169588-064-0920ND
2014-04-179588-014-0835ND
2014-04-179588-031-0745ND
2014-05-219588-063-0725ND
2014-05-279588-016-0925ND
2014-05-279588-040-1245ND
2014-06-109588-037-1000ND
2014-06-109588-038-0850ND
2014-06-249588-033-0800ND
2014-06-249588-042-0830ND
2014-07-099588-065-0850ND
2014-07-099588-067-1100ND
2014-07-099588-068-1000ND
2014-07-239588-026-0740ND
2014-07-239588-034-0945ND
2014-07-239588-072-0910ND
2014-07-249588-041-0800ND
2014-07-319588-024-0740ND
2014-08-069588-027-1020ND
2015-01-309588-001-0815ND
2015-01-309588-003-0915ND
2015-01-309588-011-1050ND
2015-01-309588-022-0750ND
2015-01-309588-023-0845ND
2015-01-309588-027-1030ND
2015-02-269588-007-0855ND
2015-02-269588-020-0820ND
2015-02-269588-028-0745ND
2015-03-129588-031-0800ND
2015-03-129588-044-0900ND
2015-03-129588-045-0740ND
2015-03-239588-043-0810ND
2015-03-239588-064-0750ND
2015-04-279588-026-0840ND
2015-05-119588-038-1015ND
2015-05-119588-040-1045ND
2015-05-139588-016-1130ND
2015-05-139588-033-0945ND
2015-05-139588-037-1205ND
2015-05-139588-042-0900ND
2015-05-189588-024-0800ND
2015-05-189588-065-0900ND
2015-05-189588-068-0945ND
2015-06-109588-067-0730ND
2015-06-159588-034-0800ND
2015-06-159588-041-0715ND
2015-06-159588-072-0740ND
2015-08-199588-014-1030ND
2015-10-269588-063-1000ND
2016-01-259588-001-1030ND
2016-01-259588-003-0910ND
2016-02-179588-007-0925ND
2016-02-179588-022-0900ND
2016-02-179588-023-0850ND
2016-02-179588-028-0830ND
2016-02-179588-043-1030ND
2016-02-179588-063-1005ND
2016-02-179588-064-1020ND
2016-03-149588-026-1100ND
2016-03-149588-038-0920ND
2016-03-149588-040-0900ND
2016-03-149588-068-0950ND
2016-05-049588-065-0745ND
2016-05-169588-067-1020ND
2016-05-239588-027-0910ND
2016-06-239588-033-0950ND
2016-06-239588-042-1010ND
2016-06-309588-024-0740ND
2016-06-309588-034-0820ND
2016-06-309588-041-0720ND
2016-06-309588-072-0810ND
2016-07-119588-016-1030ND
2016-07-119588-037-1000ND
2016-11-299588-035-0930ND
2017-02-019588-001-0935ND
2017-02-019588-003-0810ND
2017-02-079588-007-1030ND
2017-02-079588-027-1000ND
2017-02-079588-028-0930ND
2017-02-239588-020-1030ND
2017-02-239588-022-1040ND
2017-02-239588-023-1020ND
2017-02-249588-026-0830ND
2017-02-249588-043-0920ND
2017-02-249588-063-0930ND
2017-02-249588-064-0910ND
2017-03-319588-006-1010ND
2017-05-089588-011-1105ND
2017-05-099588-024-1005ND
2017-05-099588-041-0925ND
2017-06-139588-033-1000ND
2017-06-139588-042-0945ND
2017-06-199588-034-0910ND
2017-06-199588-072-0850ND
2017-07-269588-038-0830ND
2017-08-079588-067-1100ND
2017-09-149588-031-1320ND
2017-09-149588-044-1420ND
2017-09-149588-045-1340ND
2017-12-049588-006-1110ND
2017-12-049588-026-0830ND
2017-12-049588-038-1002ND
2017-12-049588-042-0845ND
2018-01-199588-076-0800ND
2018-03-129588-023-0940ND
2018-03-159588-006-1110ND
2018-03-159588-007-0810ND
2018-03-159588-020-0730ND
2018-03-269588-043-0950ND
2018-04-099588-040-1030ND
2018-05-219588-063-0840ND
2018-06-119588-034-1030ND
2018-06-119588-037-1130ND
2018-06-119588-068-0947ND
2018-06-119588-072-1020ND
2018-06-259588-065-0900ND
2018-07-059588-028-0750ND
2018-07-099588-033-1140ND
2018-07-179588-042-0954ND
2018-07-179588-067-1030ND
2018-07-309588-031-0800ND
2018-07-309588-037-0920ND
2018-07-309588-045-0730ND
2019-01-029588-076-1000ND
2019-06-179588-064-0915ND
2019-07-119588-043-0810ND