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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Hudson Water Department

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND30ND
2018ND30ND
2019ND30ND

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
2014-12-181412-01126-001ND
2014-12-181412-01128-001ND
2015-12-021512-00381-001ND
2015-12-141512-01282-001ND
2016-12-281612-02149-001ND
2016-12-281612-02154-001ND
2017-11-301712-00025-001ND
2017-12-131712-01417-001ND
2017-12-131712-01420-001ND
2018-10-24118102585.01ND
2018-10-24118102587.01ND
2018-12-17118121517.01ND
2019-10-23119102712.01ND
2019-10-23119102716.01ND
2019-12-20119121670.01ND