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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

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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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND30ND
2017ND20ND
2018ND20ND
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
2014-04-211404C24-001AND
2015-10-191510G88-001AND
2016-04-216043467-01ND
2016-07-276074594-01ND
2016-07-276074594-02ND
2017-04-057042225-01ND
2017-07-267075326-01ND
2018-04-178043700-02ND
2018-07-178073837-01ND
2019-08-089081959-01ND
2019-08-089081959-02ND
2019-10-179103869-01ND