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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

Dalton Utilities

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND30ND
2016ND30ND
2017ND30ND

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
2012-05-23AH65295ND
2012-05-23AH65294ND
2013-06-03AI02683ND
2013-06-03AI02682ND
2014-05-13AI40410ND
2014-05-13AI40409ND
2015-03-31AI69893ND
2015-03-31AI69892ND
2015-03-31AI69891ND
2016-05-10AJ11900ND
2016-05-10AJ11899ND
2016-05-10AJ11898ND
2017-06-19AJ57840ND
2017-06-19AJ57839ND
2017-06-19AJ57838ND