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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

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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.

 

18

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
2014N/A00N/A
2015N/A00N/A
2016ND90ND
2017N/A00N/A
2018N/A00N/A
2019ND90ND

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
2016-03-14AC68334ND
2016-03-14AC68339ND
2016-03-14AC68340ND
2016-03-14AC68341ND
2016-03-14AC68335ND
2016-03-14AC68337ND
2016-03-14AC68338ND
2016-03-14AC68342ND
2016-03-14AC68336ND
2019-03-18AD41184ND
2019-03-18AD41183ND
2019-03-18AD41182ND
2019-03-18AD41181ND
2019-03-18AD41180ND
2019-03-18AD41179ND
2019-03-18AD41178ND
2019-03-18AD41177ND
2019-03-18AD41176ND