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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Canonchet Cliffs Water Association Inc.

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND40ND
2016ND40ND
2017ND10ND
2018ND40ND
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 Lab ID Result
2014-03-031401654-04_TO12ND
2014-03-031401654-03_TO12ND
2014-03-031401654-01_TO12ND
2014-03-031401654-02_TO12ND
2014-04-011402088-02_TO12ND
2014-04-011402088-01_TO12ND
2014-07-291404091-01_TO12ND
2014-07-291404091-02_TO12ND
2015-03-161501554-03_TO12ND
2015-03-161501554-04_TO12ND
2015-03-161501554-02_TO12ND
2015-03-161501554-01_TO12ND
2016-03-031601386-04_TO12ND
2016-03-031601386-03_TO12ND
2016-03-031601386-02_TO12ND
2016-03-031601386-01_TO12ND
2017-03-231701622-01_TO12ND
2018-03-191801421-03_TO12ND
2018-03-191801421-02_TO12ND
2018-03-191801421-01_TO12ND
2018-03-191801421-04_TO12ND
2019-03-051901228-02_TO12ND