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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Harding Woods Mobile Home Park

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND10ND
2016ND40ND
2017ND40ND
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
2015-07-062081460001ND
2016-03-162130860001ND
2016-05-112143440001ND
2016-09-222177614001ND
2016-10-042180247001ND
2017-02-012205936001ND
2017-06-122238059001ND
2017-09-222264664001ND
2017-12-277039747001ND
2018-01-117040264001-VOCND
2018-04-107048414001-VOCND
2019-01-167077042001-VOCND
2019-08-1470101714001-VOCND