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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

City of Olney

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND40ND
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
2014-08-13Q1436355002ND
2015-09-23Q1537409002ND
2016-03-01Q1608662011ND
2016-05-10Q1618441003ND
2016-09-19Q1638437003ND
2016-11-17Q1650601003ND
2017-02-01Q1704744001ND
2018-02-14Q1806402001ND
2019-02-13Q1906768001ND