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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Brunner Hill Water Association

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.

MORE ABOUT THIS CONTAMINANT

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
2016ND50ND
2017ND80ND
2018ND40ND
2019ND40ND

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
2014-01-2714030009401ND
2014-03-1814079005309ND
2014-04-0814100005001ND
2014-07-0814190005501ND
2014-10-1314288001001ND
2015-01-1315015002401ND
2015-01-1315015002501ND
2015-04-1415106002601ND
2015-07-1415196000702ND
2015-10-1415289006001ND
2016-01-1316015011101ND
2016-01-1316015011001ND
2016-04-1216105010301ND
2016-07-1216196017302ND
2016-10-1116287009501ND
2017-01-1017012009501ND
2017-01-1017012009609ND
2017-04-1117103002101ND
2017-04-1117103002209ND
2017-07-1117194009402ND
2017-07-1117194009508ND
2017-10-1017285011401ND
2017-10-1017285011301ND
2018-04-1118102005601ND
2018-04-1118102005501ND
2018-07-1018193011002ND
2018-10-0918284007801ND
2019-01-1519016002201ND
2019-01-1519016000201ND
2019-08-2619240000702ND
2019-10-0819282002001ND