cis-1,2-Dichloroethylene
City of Greenwood
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.
14
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 6 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2015-08-17 | 150818-013VO | ND |
| 2015-08-17 | 150818-014VO | ND |
| 2015-08-17 | 150818-015VO | ND |
| 2015-08-17 | 150818-016VO | ND |
| 2015-08-17 | 150818-017VO | ND |
| 2015-08-17 | 150818-018VO | ND |
| 2018-01-29 | 180130-017VO | ND |
| 2018-05-01 | 180502-015VO | ND |
| 2018-08-13 | 180814-021VO | ND |
| 2018-10-22 | 181023-009VO | ND |
| 2019-03-05 | 190306-010VO | ND |
| 2019-04-29 | 190430-005VO | ND |
| 2019-08-12 | 190813-012VO | ND |
| 2019-11-05 | 191106-014VO | ND |