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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Aqua Pa Hatboro

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND60ND
2016ND50ND
2017ND50ND
2018ND50ND
2019ND50ND

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
2014-01-07AE19909ND
2014-02-04AE22451ND
2014-02-04AE22453ND
2014-02-04AE22450ND
2014-02-21AE23907ND
2014-04-08AE28690ND
2014-06-17AE36363ND
2014-07-24AE40860ND
2014-11-19AE56461ND
2015-02-0312401085ND
2015-02-0312401127ND
2015-02-0312401106ND
2015-02-0312401064ND
2015-02-0312401043ND
2015-12-1513632492ND
2016-01-1913751841ND
2016-01-1913751757ND
2016-01-1913751778ND
2016-01-1913751799ND
2016-01-1913751820ND
2017-03-2815794764ND
2017-03-2815794743ND
2017-06-2016256732ND
2017-06-2016256711ND
2017-12-1317161016ND
2018-03-14AF77909ND
2018-03-14AF77910ND
2018-03-14AF77911ND
2018-03-14AF77912ND
2018-03-14AF77913ND
2019-03-13AG10399ND
2019-03-13AG10400ND
2019-03-13AG10406ND
2019-03-13AG10402ND
2019-03-20AG12154ND