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EWG's Tap Water Database — 2019 UPDATE

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1,1,1,2-Tetrachloroethane

Attleboro Water Department

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND10ND
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Result
2013-07-01ND
2014-06-16ND
2014-07-02ND
2014-07-02ND
2015-01-07ND
2015-03-04ND
2015-08-21ND
2016-01-06ND
2016-07-06ND
2016-08-03ND
2017-01-04ND
2017-06-27ND
2017-07-20ND