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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Monroe County Water Authority (MCWA)

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
2014ND20ND
2015ND10ND
2016ND20ND
2017ND20ND
2018ND20ND
2019N/A00N/A

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
2014-04-12481240POCND
2014-05-12481222POCSND
2015-08-11547828POCSND
2016-05-11201605110439POCSND
2016-05-11589767POCSND
2017-05-10201705110595POCSND
2017-05-11201705110547POCSND
2018-05-10201805110521POCSND
2018-05-10201805110629POCSND