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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Stratham Woods

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015N/A00N/A
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

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
2014-03-181403-00452-001ND
2014-06-171406-00502-001ND
2014-09-1931023-001ND
2014-12-1131890-001ND
2016-12-191612-01761-001ND
2017-12-131712-01386-001ND
2018-12-131812-01510-001ND
2019-11-13203624.01ND