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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Caroline Utility System

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND30ND
2016ND40ND
2017ND20ND
2018ND10ND
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
2014-02-1211532VOC2ND
2014-02-1211532VOCND
2014-04-2511553VOCND
2014-04-2511553VOC2ND
2014-07-1011384VOCND
2014-07-1011384VOC2ND
2014-11-0312130VOCND
2014-11-0312130VOC2ND
2015-08-05460141-SUMMIT ENND
2015-11-1600215-MID ATLANTND
2015-11-1600215-MID ATLANTND
2016-03-2213602-01ND
2016-05-2513829VOCND
2016-05-2513829VOC2ND
2016-06-2713927VOCND
2017-02-2214842VOC2ND
2017-02-2214842VOCND
2018-02-27PR190VOCND
2019-01-29PR1575-VND
2019-08-01E190704242ND