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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.

MORE ABOUT THIS CONTAMINANT

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015ND180ND
2016N/A00N/A
2017N/A00N/A
2018ND180ND
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
2015-01-22AC41399ND
2015-01-22AC41398ND
2015-01-22AC41413ND
2015-01-22AC41403ND
2015-01-22AC41405ND
2015-01-22AC41409ND
2015-01-22AC41402ND
2015-01-22AC41400ND
2015-01-22AC41397ND
2015-01-22AC41404ND
2015-01-22AC41411ND
2015-01-22AC41414ND
2015-01-22AC41406ND
2015-01-22AC41410ND
2015-01-22AC41408ND
2015-01-22AC41407ND
2015-01-22AC41401ND
2015-01-22AC41412ND
2018-01-24AD12007ND
2018-01-24AD12008ND
2018-01-24AD12009ND
2018-01-24AD12010ND
2018-01-24AD12011ND
2018-01-24AD12012ND
2018-01-24AD12014ND
2018-01-24AD12015ND
2018-01-24AD12016ND
2018-01-24AD12006ND
2018-01-24AD12005ND
2018-01-24AD12003ND
2018-01-24AD12002ND
2018-01-24AD12001ND
2018-01-24AD12004ND
2018-01-24AD12000ND
2018-01-24AD11998ND
2018-01-24AD11999ND