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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Jordanelle Special Service District

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND40ND
2017ND50ND
2018ND50ND
2019ND60ND

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
2014-08-19ND
2014-08-19ND
2015-06-10ND
2015-08-18ND
2016-04-27ND
2016-08-10ND
2016-09-20ND
2016-11-16ND
2017-01-18ND
2017-04-12ND
2017-07-12ND
2017-07-12ND
2017-10-16ND
2018-01-10ND
2018-04-09ND
2018-07-03ND
2018-07-18ND
2018-10-16ND
2019-01-08ND
2019-04-23ND
2019-06-27ND
2019-06-27ND
2019-07-29ND
2019-10-16ND