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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Hulon Lakes Subdivision

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-01-22AC39835ND
2014-01-22AC39829ND
2015-02-24AC81703ND
2015-02-24AC81707ND
2015-03-25AC86040ND
2015-03-25AC86042ND
2016-01-26AD20080ND
2016-01-26AD20112ND
2016-01-26AD20070ND
2016-01-26AD20068ND
2017-09-21AD97405ND
2017-09-21AD97403ND
2017-09-21AD97401ND
2017-09-21AD97397ND
2018-07-05AE32442ND
2018-07-05AE32444ND
2018-07-05AE32440ND
2018-07-05AE32448ND
2019-10-09AE86145ND
2019-10-09AE86141ND
2019-10-09AE86143ND
2019-10-09AE86139ND