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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

North Fork Creek II

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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 Lab ID Result
2014-10-15Q1452618004ND
2014-10-15Q1452618001ND
2015-11-03Q1543214002ND
2015-11-03Q1543214004ND
2016-10-26Q1645771005ND
2016-10-26Q1645771002ND
2017-12-07Q1763640005ND
2017-12-07Q1763640008ND
2018-10-04Q1839789001ND
2018-10-04Q1839789004ND
2019-01-30Q1904582001ND
2019-04-03Q1913497002ND