cis-1,2-Dichloroethylene
Tarkington Special Utility 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.
16
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 | 4 | 0 | ND |
| 2016 | ND | 6 | 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 |
|---|---|---|
| 2015-05-19 | AC92611 | ND |
| 2015-05-19 | AC92613 | ND |
| 2015-09-25 | AD08776 | ND |
| 2015-10-08 | AD10032 | ND |
| 2016-03-21 | AD29623 | ND |
| 2016-03-21 | AD29635 | ND |
| 2016-03-21 | AD29589 | ND |
| 2016-03-21 | AD29587 | ND |
| 2016-09-26 | AD51148 | ND |
| 2016-10-20 | AD54099 | ND |
| 2017-09-11 | AD95513 | ND |
| 2017-09-11 | AD95515 | ND |
| 2018-07-18 | AE33808 | ND |
| 2018-07-18 | AE33806 | ND |
| 2019-03-19 | AE59021 | ND |
| 2019-03-19 | AE59027 | ND |