Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

City of Pendleton

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-07-241855001-VND
2019-08-071957481-VND
2019-08-071957484-VND
2019-08-121958621-VND
2019-08-261962899-VND
2020-08-052050688-VND
2020-08-052050687-VND
2020-08-052050686-VND
2020-08-052050689-VND
2020-12-162085920-VND
2021-11-152184563-VND
2022-08-2422-55258-VND
2023-08-0123-45523-VND
2023-08-2923-52015-VND
2023-08-2923-52014-VND
2023-08-2923-52016-VND