Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

Sulphur Water System

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

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND20ND
2016N/A00N/A
2017ND120ND
2018N/A00N/A
2019ND100ND

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
2014-07-21AD93897ND
2014-07-21AD93894ND
2014-07-21AD93897ND
2014-07-21AD93896ND
2014-07-21AD93895ND
2014-07-21AD93894ND
2014-07-21AD93895ND
2014-07-21AD93896ND
2014-10-06AD98325ND
2014-10-06AD98326ND
2014-10-06AD98325ND
2014-10-06AD98326ND
2015-03-0235177665003ND
2015-03-0235177665003ND
2017-07-1735324418005ND
2017-07-1735324418001ND
2017-07-1735324418004ND
2017-07-1735324418003ND
2017-07-1735324418002ND
2017-07-1735324418001ND
2017-07-1735324418005ND
2017-07-1735324418004ND
2017-07-1735324418003ND
2017-07-1735324418002ND
2017-09-1935337316003ND
2017-09-1935337316003ND
2019-07-0835480758001ND
2019-07-0835480758001ND
2019-12-0935518078001ND
2019-12-0935518078004ND
2019-12-0935518078003ND
2019-12-0935518078002ND
2019-12-0935518078001ND
2019-12-0935518078004ND
2019-12-0935518078003ND
2019-12-0935518078002ND