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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Belforest 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND10ND
2016ND40ND
2017ND20ND
2018ND20ND
2019ND30ND

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
2014-01-13AA88295ND
2014-01-16AA88294ND
2014-04-15AA89084ND
2014-07-16AA90617ND
2014-07-17AA90616ND
2014-10-14AA92211ND
2014-10-16AA92212ND
2014-10-16AA92214ND
2014-10-16AA92213ND
2015-10-15AB08451ND
2016-10-03AB15822ND
2016-10-13AB15824ND
2016-10-13AB15821ND
2016-10-13AB15823ND
2017-10-11AB23665ND
2017-10-12AB23664ND
2018-10-11AB30933ND
2018-10-11AB30934ND
2019-12-09AB40552ND
2019-12-09AB40551ND
2019-12-09AB40553ND