cis-1,2-Dichloroethylene
City of Bastrop
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.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-18 | AC43448 | ND |
| 2014-02-18 | AC43442 | ND |
| 2014-02-18 | AC43444 | ND |
| 2015-02-02 | AC78807 | ND |
| 2015-02-02 | AC78825 | ND |
| 2015-02-02 | AC78815 | ND |
| 2016-01-25 | AD19705 | ND |
| 2016-01-25 | AD19703 | ND |
| 2016-01-25 | AD19707 | ND |
| 2017-01-10 | AD63984 | ND |
| 2017-04-05 | AD78560 | ND |
| 2017-04-05 | AD78558 | ND |
| 2018-01-23 | AE09870 | ND |
| 2018-01-23 | AE09862 | ND |
| 2018-01-23 | AE09866 | ND |
| 2019-01-16 | AE50160 | ND |
| 2019-01-16 | AE50154 | ND |
| 2019-04-11 | AE62106 | ND |