cis-1,2-Dichloroethylene
El Dorado Waterworks
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 | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 2 | 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 |
---|---|---|
2014-04-29 | 14121002702 | ND |
2014-11-12 | 14317002902 | ND |
2015-05-27 | 15148009202 | ND |
2016-04-11 | 16105004602 | ND |
2017-06-13 | 17166001602 | ND |
2017-10-11 | 17285000502 | ND |
2018-04-30 | 18123005702 | ND |
2019-05-13 | 19136000402 | ND |