cis-1,2-Dichloroethylene
Union Parish Waterworks District 1
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 | 6 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-02-10 | AD88999 | ND |
| 2014-02-10 | AD88998 | ND |
| 2014-02-10 | AD88998 | ND |
| 2014-02-10 | AD88999 | ND |
| 2014-07-15 | AD93579 | ND |
| 2014-07-15 | AD93579 | ND |
| 2016-10-19 | 35272007001 | ND |
| 2016-10-19 | 35272007001 | ND |
| 2017-03-14 | 35301204001 | ND |
| 2017-03-14 | 35301204002 | ND |
| 2017-03-14 | 35301204002 | ND |
| 2017-03-14 | 35301204001 | ND |
| 2019-10-07 | 35504137001 | ND |
| 2019-10-07 | 35504137003 | ND |
| 2019-10-07 | 35504137002 | ND |
| 2019-10-07 | 35504137001 | ND |
| 2019-10-07 | 35504137003 | ND |
| 2019-10-07 | 35504137002 | ND |