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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Golden State Water Company - Orcutt

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015N/A00N/A
2016N/A00N/A
2017ND90ND
2018ND60ND
2019N/A00N/A

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
2014-01-292706-004-1020ND
2014-01-292706-001-0940ND
2014-01-292706-011-0916ND
2014-02-052706-006-0935ND
2014-02-052706-031-1020ND
2014-02-052706-005-0835ND
2014-02-052706-014-0930ND
2014-02-052706-012-1030ND
2014-02-052706-009-1045ND
2014-02-122706-015-0905ND
2014-02-122706-008-0930ND
2014-02-262706-010-0935ND
2017-02-219590-012-1150ND
2017-02-219590-031-1010ND
2017-02-219590-010-1110ND
2017-02-219590-008-1035ND
2017-02-219590-006-1235ND
2017-02-219590-001-0902ND
2017-03-079590-004-0935ND
2017-03-079590-005-1110ND
2017-03-219590-009-1005ND
2018-04-179590-015-0830ND
2018-04-179590-014-0815ND
2018-04-179590-011-0850ND
2018-05-089590-015-1045ND
2018-05-089590-014-1345ND
2018-05-089590-011-1345ND