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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Stonetown Clearview Mhc

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND50ND
2016ND30ND
2017ND50ND
2018ND10ND
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
2014-01-12038681.001ND
2014-04-13042200.001ND
2014-07-20045604.001ND
2014-10-19049087.001ND
2015-01-19052205.001ND
2015-05-25054852.001ND
2015-08-16059184.001ND
2015-09-13059184.002ND
2015-10-20063833.001ND
2016-04-17SDWA-1013236-00ND
2016-10-10SDWA-1072323-00ND
2016-12-11SDWA-1106709-00ND
2017-03-28SDWA-1136333-00ND
2017-06-12SDWA-1150885-03ND
2017-08-24SDWA-1192390-00ND
2017-08-24SDWA-1192389-00ND
2017-12-07SDWA-1214323-03ND
2018-05-30SDWA-1237660-00ND
2019-02-19SDWA-1350493-00ND