Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

1,1,1-Trichloroethane

Waterloo Water Works

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0589 ppb91ND - 0.530 ppb
20130.560 ppb32ND - 1.11 ppb
2014ND10ND
2015ND20ND
2016ND10ND
2017ND10ND

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
2012-10-231942205ND
2012-10-231942198ND
2012-10-231942199ND
2012-10-231942200ND
2012-10-231942201ND
2012-10-2319422020.530 ppb
2012-10-231942203ND
2012-10-231942204ND
2012-10-231942206ND
2013-03-1319683921.11 ppb
2013-06-1919858310.570 ppb
2013-07-231993061ND
2014-02-192036027ND
2015-03-051C50388-01ND
2015-10-131J51068-01ND
2016-01-271A61740-01ND
2017-02-081B70543-01ND