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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Borough of Atglen

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
2014ND50ND
2015ND10ND
2016ND10ND
2017ND30ND
2018ND10ND
2019ND10ND

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
2014-03-191077387001ND
2014-06-232014203001ND
2014-07-292021224001ND
2014-09-152029178001ND
2014-12-082044696001ND
2015-06-2212876752ND
2016-11-2215221171ND
2017-04-1115930762ND
2017-05-0216088390ND
2017-12-1917156512ND
2018-05-018041270-01ND
2019-04-099041375-01ND