Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Nokomis

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND20ND
20210.528 ppb42ND - 1.30 ppb
20221.35 ppb43ND - 2.00 ppb
20231.03 ppb440.600 ppb - 1.30 ppb

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
2018-02-278024299-01ND
2018-05-298054925-01ND
2018-09-128092353-01ND
2018-11-078111674-01ND
2019-02-199023188-01ND
2019-06-049060831-01ND
2019-07-259075349-01ND
2019-10-159103590-01ND
2020-02-120022488-01ND
2020-04-070041452-01ND
2021-03-18EC03922-01ND
2021-05-28EE05532-01ND
2021-08-19EH04492-010.810 ppb
2021-10-20EJ04333-011.30 ppb
2022-03-10FC02417-01ND
2022-06-28FF05319-012.00 ppb
2022-09-15FI03132-011.80 ppb
2022-12-15FL03384-011.60 ppb
2023-03-16GC03092-010.600 ppb
2023-06-22GF04250-011.20 ppb
2023-09-21GI03909-011.000 ppb
2023-12-28GL04623-011.30 ppb