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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Aqua Pa Uwchlan

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

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND60ND
2017ND60ND
2018ND60ND
2019ND70ND

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
2014-02-06AE22430ND
2014-02-14AE22387ND
2014-02-14AE22385ND
2014-02-21AE23943ND
2014-02-21AE23946ND
2014-04-23AE29861ND
2015-02-0312395459ND
2015-02-0312395501ND
2015-02-0312395522ND
2015-02-0312395543ND
2015-02-0412395438ND
2015-02-0412395480ND
2016-01-2213746283ND
2016-01-2213746262ND
2016-01-2213746220ND
2016-01-2213746241ND
2016-02-1013864187ND
2016-02-1013864208ND
2017-03-2815787981ND
2017-03-2815787960ND
2017-04-1915928767ND
2017-04-1915928788ND
2017-04-2115928746ND
2017-06-2116249811ND
2018-01-29AF74449ND
2018-01-31AF73819ND
2018-02-26AF76934ND
2018-02-26AF76935ND
2018-03-13AF77984ND
2018-03-13AF77985ND
2019-03-06AG10267ND
2019-03-06AG10268ND
2019-03-06AG10266ND
2019-03-12AG10439ND
2019-03-12AG10441ND
2019-03-27AG11746ND
2019-11-07AG37520ND