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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

The Trails S/d

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
2014ND40ND
2015ND40ND
2016ND10ND
2017ND30ND
2018N/A00N/A
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
2014-03-3192195604001VOCND
2014-06-1692205936001VOCND
2014-09-30174054-14ND
2014-12-31174709-14ND
2015-03-30ND
2015-06-30ND
2015-09-29ND
2015-12-30ND
2016-10-191541-16ND
2017-03-15410-17ND
2017-04-12515-17ND
2017-12-202214-17ND