Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

Southwest Ouachita Waterworks 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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND60ND
2016N/A00N/A
2017ND140ND
2018N/A00N/A
2019N/A00N/A

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
2014-10-20AD98783ND
2014-10-20AD98780ND
2014-10-20AD98783ND
2014-10-20AD98782ND
2014-10-20AD98781ND
2014-10-20AD98780ND
2014-10-20AD98781ND
2014-10-20AD98782ND
2015-01-05AE00867ND
2015-01-05AE00867ND
2015-07-0135195569004ND
2015-07-0135195569006ND
2015-07-0135195569006ND
2015-07-0135195569004ND
2017-06-1235318592003ND
2017-06-1235318592002ND
2017-06-1235318592001ND
2017-06-1235318592001ND
2017-06-1235318592002ND
2017-06-1235318592003ND
2017-10-1635343270001ND
2017-10-1635343270004ND
2017-10-1635343270003ND
2017-10-1635343270002ND
2017-10-1635343270001ND
2017-10-1635343270004ND
2017-10-1635343270003ND
2017-10-1635343270002ND