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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Woodward

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.

 

20

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
2014ND70ND
2015ND40ND
2016ND50ND
2017ND20ND
2018ND10ND
2019ND10ND

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
2014-02-034B04005-01ND
2014-04-214D21056-01ND
2014-05-194E19039-01ND
2014-08-044H04065-01ND
2014-08-184H18051-01ND
2014-09-184I19019-01ND
2014-10-204J20046-01ND
2015-01-265A26031-01ND
2015-04-205D20026-01ND
2015-08-035H03084-01ND
2015-10-195J19021-01ND
2016-03-316D04068-01ND
2016-04-186D18049-01ND
2016-06-066F06053-01ND
2016-08-156H16112-01ND
2016-11-216K21032-01ND
2017-10-167J16069-03ND
2017-10-167J16069-02ND
2018-02-26AB26071-01ND
2019-06-17BF17069-01ND