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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Napoleon City

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
2013N/A00N/A
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND50ND
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
2014-02-0614-11584-04ND
2015-01-0815-10356-04AND
2016-01-0716-10465-07ND
2017-01-0517-10458-01BND
2018-01-0318-10422-04BND
2018-02-0118-11960-03BND
2018-04-0518-16341-01CND
2018-07-0518-23761-01ND
2018-10-0318-31948-04ND
2019-01-0319-10388-03BND