Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Paw Blue Mountain Division

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND50ND
2021ND40ND
2022ND40ND
2023ND50ND

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
2018-01-1038160101ND
2019-01-0942498201ND
2019-07-1645238801ND
2020-04-2222086239.00ND
2020-04-2922086548.00ND
2020-04-2922086569.00ND
2020-05-1122278292.00ND
2020-05-1122278313.00ND
2021-04-1224308438.00ND
2021-04-1224308459.00ND
2021-07-2124889774.00ND
2021-07-2124889795.00ND
2022-04-1826522965.00ND
2022-04-1826522986.00ND
2022-08-0327300358.00ND
2022-08-0427300339.00ND
2023-04-1028766750.00ND
2023-04-1028766731.00ND
2023-04-1128766710.00ND
2023-04-1128766700.00ND
2023-06-0729172445.00ND