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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Bellefontaine City PWS

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND40ND
2016ND30ND
2017ND10ND
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
2014-09-05A140217250ND
2015-07-01A150232046ND
2015-09-04A150136714ND
2015-11-06A150310724ND
2015-12-08A150332017ND
2016-01-06A160332099ND
2016-06-01A160399278ND
2016-07-01A160331874ND
2017-07-07A170504754ND
2018-07-06A180614035ND
2019-08-169H02870-01ND