Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

cis-1,2-Dichloroethylene

Chesterfield County Central 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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND60ND
2014ND100ND
2015ND40ND
2016ND40ND
2017ND40ND

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
2012-06-05E120400841ND
2012-06-05E120400821ND
2012-06-05E120400837ND
2012-06-05E120400817ND
2013-04-23E130202509ND
2013-04-23E130202481ND
2013-04-23E130202494ND
2013-04-23E130202506ND
2013-05-14E130501440ND
2013-05-14E130501441ND
2014-03-27E140307385ND
2014-04-22E140308605ND
2014-04-22E140308573ND
2014-04-22E140308606ND
2014-04-22E140308595ND
2014-08-22E140801007ND
2014-08-22E140801008ND
2014-08-22E140801006ND
2014-08-22E140801005ND
2014-09-25E140801009ND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2016-04-25E160305675ND
2016-04-25E160305671ND
2016-04-25E160305672ND
2016-04-25E160305682ND
2017-04-19E170304726ND
2017-04-19E170304724ND
2017-04-19E170304741ND
2017-04-20E170304722ND