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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Montclair Water Bureau

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND90ND
2016N/A00N/A
2017ND20ND
2018ND30ND
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
2014-02-274020540-02ND
2014-06-204060637-02ND
2014-06-204060637-04ND
2014-06-204060637-06ND
2014-07-224070666-02ND
2014-09-1028750-4ND
2014-09-1028750-2ND
2014-09-1028750-6ND
2014-11-0429684-4ND
2014-11-0429684-2ND
2014-11-0429684-6ND
2015-03-0631544-2ND
2015-05-19DWS537-6ND
2015-05-19DWS537-4ND
2015-05-19DWS537-2ND
2015-07-21DWSC68-2ND
2015-07-29DWSC90-2ND
2015-07-29DWSC90-4ND
2015-11-06DWSC724-2ND
2015-11-06DWSC724-4ND
2017-08-28DWSC3790-2ND
2017-10-11DWSC4095-2ND
2018-06-07DWSC5477-6ND
2018-08-1618081706-01ND
2018-10-2518102615-02ND
2019-02-2719022804-02ND
2019-07-1819072203-002ND