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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Sandy City Water System

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND70ND
2016ND90ND
2017ND20ND
2018ND20ND
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 Result
2014-02-20ND
2014-05-29ND
2014-05-29ND
2014-05-29ND
2014-05-29ND
2014-05-30ND
2014-05-30ND
2014-06-05ND
2014-06-06ND
2014-07-21ND
2015-04-06ND
2015-07-06ND
2015-07-06ND
2015-07-14ND
2015-07-16ND
2015-07-22ND
2015-11-09ND
2016-03-11ND
2016-03-11ND
2016-04-22ND
2016-06-06ND
2016-06-14ND
2016-06-17ND
2016-06-21ND
2016-06-22ND
2016-06-22ND
2017-06-22ND
2017-09-01ND
2018-09-07ND
2018-09-07ND
2019-07-26ND