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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Edina

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.63 ppb440.310 ppb - 9.10 ppb
20133.30 ppb440.300 ppb - 7.00 ppb
20141.63 ppb42ND - 4.30 ppb
2015N/A00N/A
20162.92 ppb53ND - 5.90 ppb
20173.20 ppb113.20 ppb

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
2012-03-2712C0955-010.310 ppb
2012-08-1612H1756-012.10 ppb
2012-09-1012I0373-013.00 ppb
2012-11-0112K0073-019.10 ppb
2013-02-2713B1314-017.00 ppb
2013-05-3013E2570-010.300 ppb
2013-05-3013E2570-022.60 ppb
2013-05-3013E2570-033.30 ppb
2014-08-2014H1839-022.20 ppb
2014-08-2014H1839-044.30 ppb
2014-08-2014H1839-01ND
2014-11-1914K0831-01ND
2016-04-113428612ND
2016-04-1134286625.00 ppb
2016-04-1134286783.70 ppb
2016-04-113428699ND
2016-12-1416L0584-015.90 ppb
2017-02-0717B0347-013.20 ppb