cis-1,2-Dichloroethylene
Lone Star Public Water System
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.
13
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 | 3 | 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 |
|---|---|---|
| 2014-04-10 | AC50150 | ND |
| 2014-06-05 | AC56101 | ND |
| 2015-03-18 | AC85015 | ND |
| 2015-03-18 | AC85019 | ND |
| 2015-04-22 | AC89236 | ND |
| 2016-06-02 | AD39187 | ND |
| 2016-06-02 | AD39193 | ND |
| 2017-09-07 | AD95164 | ND |
| 2017-09-07 | AD95162 | ND |
| 2018-06-28 | AE31997 | ND |
| 2018-06-28 | AE32003 | ND |
| 2019-11-05 | AE88484 | ND |
| 2019-11-05 | AE88468 | ND |