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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

United Water Rahway

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.

 

73

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND120ND
2016ND120ND
2017ND120ND
2018ND120ND
2019ND130ND

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
2014-01-064010154-04ND
2014-02-044020071-04ND
2014-03-044030106-04ND
2014-04-014040063-04ND
2014-05-064050210-04ND
2014-06-024060019-04ND
2014-07-024070083-04ND
2014-08-054080206-04ND
2014-09-024090068-04ND
2014-10-014100029-04ND
2014-11-044110128-04ND
2014-12-034120192-04ND
2015-01-082048865001ND
2015-02-042053608001ND
2015-03-032057625001ND
2015-04-072064326001ND
2015-05-072069816004ND
2015-06-092076067004ND
2015-07-062081457001ND
2015-08-102088901001ND
2015-09-082094547001ND
2015-10-062100355001ND
2015-11-092108071001ND
2015-12-022111153001ND
2016-01-112117774001ND
2016-02-082123461001ND
2016-03-082129590001ND
2016-04-042134709001ND
2016-05-092142323001ND
2016-06-032148847001ND
2016-07-252162441001ND
2016-08-082166270001ND
2016-09-062172944001ND
2016-10-112181833001ND
2016-11-072188181001ND
2016-12-092195131001ND
2017-01-067010175-04ND
2017-02-067020251-04ND
2017-03-097030313-04ND
2017-04-137040482-04ND
2017-05-037050241-04ND
2017-06-057060265-04ND
2017-07-067070145-04ND
2017-08-077080364-04ND
2017-09-057090127-04ND
2017-10-047100200-04ND
2017-11-177110665-04ND
2017-12-157120650-04ND
2018-01-098010322-04ND
2018-02-078020295-04ND
2018-03-068030252-03ND
2018-04-048040228-02ND
2018-05-018050127-03ND
2018-06-048060087-03ND
2018-07-028070223-03ND
2018-08-088080371-03ND
2018-09-058090147-03ND
2018-10-118100595-03ND
2018-11-148110569-03ND
2018-12-068120203-03ND
2019-01-049010110-03ND
2019-02-069020279-03ND
2019-03-089030319-03ND
2019-04-129040655-01ND
2019-05-149050675-02ND
2019-06-129060448-02ND
2019-06-279061126-01ND
2019-07-039070204-02ND
2019-08-099080462-02ND
2019-09-099090315-02ND
2019-10-079100313-02ND
2019-11-159110694-02ND
2019-12-129120552-02ND