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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Central Wy Reg Water Sys Jpb

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.

 

7

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
2018ND10ND
2019N/A00N/A

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
2014-06-25C14060882-001LND
2014-06-25C14060882-002LND
2015-07-14C15070490-001END
2016-06-06C16060160-001DND
2017-06-13C17060420-001LND
2017-06-13C17060420-002LND
2018-06-27C18060967-001DND