Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Coachella Valley Water District: I.d. No. 8

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND20ND
2021ND10ND
2022ND30ND
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2019-05-14CA3310048_007_007-201905141030ND
2019-05-15CA3310048_004_004-201905150800ND
2019-11-26CA3310048_014_014-201911260930ND
2020-02-20CA3310048_014_014-202002201035ND
2020-05-27CA3310048_014_014-202005271000ND
2021-11-10CA3310048_014_014-202111100825ND
2022-01-06CA3310048_004_004-202201060940ND
2022-02-01CA3310048_014_014-202202010740ND
2022-02-16CA3310048_007_007-202202160735ND