cis-1,2-Dichloroethylene
Blocker Crossroads Water Supply Corporation
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.
10
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 | 2 | 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 |
|---|---|---|
| 2015-07-23 | Q1528836002 | ND |
| 2015-07-23 | Q1528836004 | ND |
| 2016-10-25 | Q1645363006 | ND |
| 2016-10-25 | Q1645363003 | ND |
| 2017-05-25 | Q1722390001 | ND |
| 2017-05-25 | Q1722390004 | ND |
| 2018-11-20 | Q1847590002 | ND |
| 2018-11-20 | Q1847590011 | ND |
| 2019-05-22 | Q1927733001 | ND |
| 2019-05-22 | Q1927733003 | ND |