Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

Aqua Pa Superior Main 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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015N/A00N/A
2016ND70ND
2017ND80ND
2018ND40ND
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
2014-10-022032470002ND
2014-10-022032470001ND
2014-10-022032470004ND
2014-10-022032470005ND
2014-10-022032470003ND
2016-09-0614913028ND
2016-09-0814912908ND
2016-09-0814912929ND
2016-09-0814912950ND
2016-09-0814912971ND
2016-09-0814912992ND
2016-11-0315230807ND
2017-02-2215660475ND
2017-04-2615942797ND
2017-04-2615942818ND
2017-04-2615942776ND
2017-04-2615942755ND
2017-04-2615942734ND
2017-04-2615942713ND
2017-08-1016571415ND
2018-03-14AF78842ND
2018-05-29AF85267ND
2018-07-31AF91266ND
2018-08-09AF92390ND
2019-08-08AG27413ND
2019-08-08AG27411ND