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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Maple Bluff Waterworks

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-08-14151477001ND
2014-08-14151476001ND
2014-09-09155770001ND
2014-09-09155773001ND
2015-08-04209488001ND
2015-08-04209486001ND
2016-08-01269169001ND
2016-08-01269168001ND
2016-08-17272592001ND
2016-08-17272591001ND
2017-08-01332412001ND
2017-08-01332413001ND
2018-08-02398373001ND
2018-08-02398375001ND
2019-08-01460856001ND
2019-08-01460857001ND