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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Mustang SUD

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND40ND
2016ND40ND
2017ND50ND
2018ND40ND
2019ND40ND

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
2014-01-16Q1401487002ND
2015-04-07Q1512608012ND
2015-04-07Q1512608009ND
2015-07-06Q1525681012ND
2015-07-06Q1525681009ND
2016-01-07Q1600448016ND
2016-01-07Q1600448011ND
2016-01-07Q1600448010ND
2016-01-07Q1600448014ND
2017-03-22Q1712369006ND
2017-03-22Q1712369008ND
2017-03-22Q1712369004ND
2017-03-22Q1712369002ND
2017-10-04Q1749048001ND
2018-07-10Q1827459007ND
2018-07-10Q1827459006ND
2018-07-10Q1827459004ND
2018-07-10Q1827459002ND
2019-01-08Q1900592007ND
2019-01-08Q1900592020ND
2019-01-08Q1900592008ND
2019-01-08Q1900592017ND