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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Horsham Water&sewer Authority

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

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND230ND
2015ND240ND
2016ND220ND
2017ND160ND
2018ND80ND
2019ND130ND

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
2014-01-09AE19948ND
2014-01-09AE19956ND
2014-01-09AE19959ND
2014-01-24AE21287ND
2014-02-19AE24091ND
2014-02-19AE24093ND
2014-02-19AE24094ND
2014-02-19AE24099ND
2014-02-19AE24100ND
2014-02-20AE24092ND
2014-04-16AE29642ND
2014-04-16AE29643ND
2014-04-16AE29635ND
2014-04-16AE29638ND
2014-04-16AE29639ND
2014-07-23AE41288ND
2014-07-23AE41289ND
2014-08-13AE43999ND
2014-08-13AE44001ND
2014-08-13AE44009ND
2014-10-08AE51808ND
2014-10-09AE51797ND
2014-10-09AE51805ND
2015-01-1612286575ND
2015-01-1612286605ND
2015-01-1612286626ND
2015-03-0412514937ND
2015-03-0412514958ND
2015-03-0412514979ND
2015-03-0412515000ND
2015-03-0412515021ND
2015-03-0412515042ND
2015-03-0412515063ND
2015-03-0412515084ND
2015-03-0412515105ND
2015-04-1612632989ND
2015-04-1612633031ND
2015-04-1612633052ND
2015-04-2312633010ND
2015-07-1513012141ND
2015-07-1513012183ND
2015-07-1713012120ND
2015-07-1713012162ND
2015-10-1313388714ND
2015-10-1413388651ND
2015-10-1413388672ND
2015-10-1413388693ND
2016-01-1213752676ND
2016-01-1213752697ND
2016-01-1213752718ND
2016-02-1613869798ND
2016-03-1613985442ND
2016-03-1613985463ND
2016-03-1613985499ND
2016-03-1613985526ND
2016-03-1613985547ND
2016-03-1613985568ND
2016-03-1713985421ND
2016-03-1713985484ND
2016-04-2614102745ND
2016-05-1714250259ND
2016-05-1714250280ND
2016-05-1714250301ND
2016-07-1914569337ND
2016-07-1914569358ND
2016-07-1914569379ND
2016-10-2615075519ND
2016-10-2615075540ND
2016-10-2615075561ND
2017-01-0515517122ND
2017-01-0515517080ND
2017-01-2515517101ND
2017-02-1415655269ND
2017-02-1415655290ND
2017-02-1415655311ND
2017-02-1415655248ND
2017-03-3015795470ND
2017-04-0515936819ND
2017-04-0515936840ND
2017-04-0515936861ND
2017-04-1815936798ND
2017-08-0916565746ND
2017-08-1616565704ND
2017-08-1616565725ND
2017-10-1016880015ND
2018-01-30AF74814ND
2018-01-30AF74813ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07771ND
2019-02-11AG07772ND
2019-02-11AG07773ND
2019-02-11AG07775ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31924ND
2019-09-18AG31925ND