Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

cis-1,2-Dichloroethylene

Pomona Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

111

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND220ND
2015ND200ND
2016ND140ND
2017ND180ND
2018ND170ND
2019ND200ND

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
2014-01-029590-031-1129ND
2014-01-029590-042-1105ND
2014-01-069590-033-1012ND
2014-01-069590-038-1046ND
2014-01-069590-069-1037ND
2014-01-089590-010-0912ND
2014-01-169590-025-0838ND
2014-01-169590-040-0902ND
2014-02-199590-051-1311ND
2014-03-189590-013-0955ND
2014-03-269590-036-0957ND
2014-04-099590-071-0935ND
2014-06-109590-028-0740ND
2014-07-029590-032-0813ND
2014-07-079590-033-0847ND
2014-07-079590-038-0945ND
2014-07-079590-042-1135ND
2014-07-169590-052-0856ND
2014-08-289590-027-0930ND
2014-10-069590-071-0918ND
2014-11-129590-051-1005ND
2014-12-099590-035-0943ND
2015-01-059590-033-1052ND
2015-01-059590-038-0946ND
2015-01-059590-042-1030ND
2015-01-059590-069-0943ND
2015-01-139590-010-0834ND
2015-01-139590-025-0930ND
2015-01-139590-040-0930ND
2015-02-269590-036-0922ND
2015-03-239590-031-1000ND
2015-04-069590-071-1131ND
2015-04-149590-013-0935ND
2015-06-109590-028-0844ND
2015-07-019590-052-1029ND
2015-07-069590-033-0910ND
2015-07-069590-038-0857ND
2015-07-069590-042-0959ND
2015-07-089590-032-0815ND
2015-09-299590-027-1145ND
2015-10-059590-071-1040ND
2015-10-209590-035-1021ND
2016-01-049590-042-1250ND
2016-01-069590-025-0920ND
2016-01-069590-040-0830ND
2016-01-129590-031-0824ND
2016-01-129590-036-0850ND
2016-01-139590-010-1000ND
2016-04-049590-071-1009ND
2016-06-029590-028-1115ND
2016-07-059590-038-0954ND
2016-07-059590-052-1111ND
2016-07-149590-033-1000ND
2016-07-149590-042-0845ND
2016-07-209590-027-0945ND
2016-10-129590-071-0942ND
2017-01-039590-031-1213ND
2017-01-039590-033-0933ND
2017-01-039590-038-0835ND
2017-01-109590-069-1103ND
2017-01-179590-010-1205ND
2017-01-189590-025-1218ND
2017-01-189590-040-1133ND
2017-01-259590-051-0910ND
2017-03-099590-042-1005ND
2017-04-069590-071-1145ND
2017-05-179590-036-1045ND
2017-07-119590-028-0910ND
2017-07-119590-038-1040ND
2017-07-139590-033-0930ND
2017-07-139590-042-1150ND
2017-07-249590-027-1415ND
2017-07-259590-052-1445ND
2017-10-259590-032-1115ND
2018-01-039590-033-1405ND
2018-01-039590-038-1006ND
2018-01-189590-042-1313ND
2018-01-229590-010-1207ND
2018-01-229590-025-1257ND
2018-01-229590-040-1325ND
2018-01-239590-069-1404ND
2018-04-169590-071-0956ND
2018-05-239590-028-1006ND
2018-06-139590-063-0955ND
2018-07-119590-033-1309ND
2018-07-169590-038-1333ND
2018-07-179590-042-1055ND
2018-07-189590-027-1408ND
2018-07-199590-031-0951ND
2018-10-239590-071-0935ND
2018-12-069590-063-0820ND
2019-01-039590-010-0939ND
2019-01-099590-033-1045ND
2019-01-099590-069-1121ND
2019-01-239590-010-1045ND
2019-01-239590-038-0843ND
2019-01-249590-025-1116ND
2019-01-249590-040-1155ND
2019-01-299590-042-1256ND
2019-01-309590-032-0915ND
2019-04-049590-071-0901ND
2019-04-179590-035-1010ND
2019-04-179590-036-1005ND
2019-04-179590-051-1110ND
2019-04-179590-063-1354ND
2019-07-029590-042-1220ND
2019-07-189590-027-1156ND
2019-07-189590-031-1035ND
2019-07-189590-052-1330ND
2019-10-039590-063-1340ND
2019-10-109590-071-1316ND