Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

West Point, 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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.44 ppb330.920 ppb - 2.39 ppb
20190.670 ppb31ND - 2.01 ppb
20201.27 ppb32ND - 2.29 ppb
20211.24 ppb331.19 ppb - 1.30 ppb
20221.35 ppb550.860 ppb - 2.00 ppb
20230.728 ppb85ND - 2.22 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
2018-01-165308422.39 ppb
2018-09-245719410.998 ppb
2018-09-245719400.920 ppb
2019-01-145925312.01 ppb
2019-09-03630428ND
2019-09-03630429ND
2020-02-106506142.29 ppb
2020-09-146899751.53 ppb
2020-09-14689974ND
2021-01-197130051.19 ppb
2021-09-217644091.30 ppb
2021-09-217644081.23 ppb
2022-01-187789082.00 ppb
2022-09-128228771.47 ppb
2022-09-128228781.54 ppb
2022-12-058357900.870 ppb
2022-12-058357890.860 ppb
2023-03-06851386ND
2023-03-06851387ND
2023-06-198641052.22 ppb
2023-06-19864104ND
2023-09-068799060.950 ppb
2023-09-068799070.920 ppb
2023-12-058914920.860 ppb
2023-12-058914910.870 ppb