cis-1,2-Dichloroethylene
Jefferson County Water Control and Improvement District 10
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-07-22 | AC60503 | ND |
2015-08-14 | AD04371 | ND |
2016-03-22 | AD30133 | ND |
2016-04-25 | AD33963 | ND |
2016-09-28 | AD52082 | ND |
2016-12-07 | AD61202 | ND |
2017-01-30 | AD67591 | ND |
2018-01-31 | AE11563 | ND |
2019-02-21 | AE55356 | ND |