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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Brigham City Water System

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

 

18

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
2013ND60ND
2014ND20ND
2015ND20ND
2016ND70ND
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Result
2013-05-29ND
2013-05-29ND
2013-05-29ND
2013-05-29ND
2013-06-26ND
2013-09-04ND
2014-01-23ND
2014-07-10ND
2015-01-27ND
2015-05-07ND
2016-05-04ND
2016-05-04ND
2016-05-18ND
2016-05-18ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2017-02-23ND