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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Intracoastal Water System West

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND80ND
2016ND20ND
2017ND20ND
2018ND80ND
2019ND20ND

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
2014-03-10AD89567ND
2014-03-10AD89567ND
2015-03-2335181102002ND
2015-03-2335181102002ND
2015-10-1435212298002ND
2015-10-1435212298001ND
2015-10-1435212298002ND
2015-10-1435212298003ND
2015-10-1435212298001ND
2015-10-1435212298003ND
2016-02-1535230016002ND
2016-02-1535230016002ND
2017-02-2735297619004ND
2017-02-2735297619004ND
2018-02-1935375364002ND
2018-02-1935375364002ND
2018-07-0935403785001ND
2018-07-0935403785003ND
2018-07-0935403785002ND
2018-07-0935403785001ND
2018-07-0935403785003ND
2018-07-0935403785002ND
2019-01-1635442897001ND
2019-01-1635442897001ND