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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Clay County Reg Water 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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-08-0614219000601ND
2014-08-0614219000801ND
2014-08-0614219000701ND
2015-09-0715252003501ND
2015-09-0715252003701ND
2016-07-2716210001201ND
2016-07-2716210001101ND
2017-07-1717200001401ND
2017-07-1717200001601ND
2017-07-1717200001501ND
2018-08-2818242002501ND
2018-08-2818242002601ND
2019-08-0619220014101ND
2019-08-0619220014401ND