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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Warrenville

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015ND10ND
2016ND30ND
2017N/A00N/A
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
2014-10-071410346-001AND
2015-10-061510365-001AND
2016-10-111610787-001AND
2016-10-111610787-002AND
2016-10-111610787-003AND
2018-06-2718F1191-01_02ND
2018-11-121811831-001AND
2018-11-121811831-002AND
2018-11-2818K0693-01_02ND
2019-11-051911219-001AND
2019-11-051911219-003AND