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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Walnutport Authority

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND40ND
2016ND20ND
2017ND40ND
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
2014-04-14140014969ND
2014-04-14140014968ND
2014-10-13140046404ND
2015-01-2912324258ND
2015-01-2912324237ND
2015-04-1312670125ND
2015-07-1413052401ND
2016-03-1414023531ND
2016-04-0414151451ND
2017-03-0615839734ND
2017-03-0615839735ND
2017-03-0615839736ND
2017-10-0216775619ND
2018-03-058005766-02ND
2018-03-058005766-01ND
2019-02-049003529-02ND
2019-02-049003529-01ND