Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Clare, City of

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.

 

40

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
2019N/A00N/A
202010.7 ppb96ND - 27.0 ppb
20217.92 ppb118ND - 21.0 ppb
20228.89 ppb108ND - 24.0 ppb
20237.78 ppb108ND - 18.0 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
2020-01-0824.0 ppb
2020-01-08ND
2020-01-082.70 ppb
2020-01-08ND
2020-04-1420.0 ppb
2020-04-143.50 ppb
2020-07-0119.0 ppb
2020-07-0127.0 ppb
2020-10-14ND
2021-01-05ND
2021-01-0520.0 ppb
2021-01-05ND
2021-01-052.40 ppb
2021-04-0721.0 ppb
2021-04-072.60 ppb
2021-06-03ND
2021-07-0719.0 ppb
2021-07-072.40 ppb
2021-10-052.70 ppb
2021-10-0517.0 ppb
2022-01-103.10 ppb
2022-01-10ND
2022-01-10ND
2022-01-1016.0 ppb
2022-04-063.20 ppb
2022-04-0624.0 ppb
2022-07-1319.0 ppb
2022-07-132.80 ppb
2022-10-052.80 ppb
2022-10-0518.0 ppb
2023-01-113.00 ppb
2023-01-1117.0 ppb
2023-01-11ND
2023-01-11ND
2023-04-053.40 ppb
2023-04-0518.0 ppb
2023-07-052.80 ppb
2023-07-0518.0 ppb
2023-10-0413.0 ppb
2023-10-042.60 ppb