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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Brinson

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND10ND
2016ND10ND
2017ND20ND
2018N/A00N/A
2019ND40ND

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
2014-01-13AI26613ND
2014-01-13AI26614ND
2015-02-26AI65583ND
2016-02-23AJ06961ND
2017-05-30AJ56223ND
2017-05-30AJ56224ND
2019-02-04AK10351ND
2019-04-17AK15510ND
2019-07-17AK22671ND
2019-10-17AK35283ND