cis-1,2-Dichloroethylene
Laguna Madre Water District
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.
11
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 | ND | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-07-09 | AC59301 | ND |
| 2014-07-09 | AC59303 | ND |
| 2015-09-25 | AD08798 | ND |
| 2016-07-27 | AD46000 | ND |
| 2016-07-27 | AD45976 | ND |
| 2017-08-17 | AD93422 | ND |
| 2017-08-17 | AD93418 | ND |
| 2018-08-08 | AE36142 | ND |
| 2018-08-08 | AE36144 | ND |
| 2019-07-02 | AE73190 | ND |
| 2019-07-02 | AE73182 | ND |