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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Aqua Pa Perkiomen Township

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
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
2014-02-04AE22408ND
2014-02-05AE22411ND
2014-02-19AE23934ND
2014-02-19AE23933ND
2014-02-19AE23939ND
2015-02-0312404371ND
2015-02-0312404392ND
2015-02-0312404413ND
2015-02-0312404434ND
2015-02-0312404455ND
2016-01-2013755358ND
2016-01-2013755400ND
2016-01-2013755379ND
2016-01-2013755316ND
2016-01-2013755337ND
2017-02-2115658854ND
2017-03-2815799036ND
2017-04-1915941135ND
2017-06-2116260409ND
2017-12-2017165030ND
2018-02-27AF76926ND
2018-02-27AF76923ND
2018-02-27AF76925ND
2018-02-27AF76922ND
2018-07-19AF90332ND
2019-04-24AG14547ND
2019-04-24AG14545ND
2019-04-24AG14549ND
2019-04-24AG14552ND
2019-05-08AG17044ND