cis-1,2-Dichloroethylene
Clarksville Waterworks
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.
11
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 |
|---|---|---|---|---|
| 2012 | ND | 1 | 0 | ND |
| 2013 | ND | 5 | 0 | ND |
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 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 |
|---|---|---|
| 2012-01-04 | 12006010901 | ND |
| 2013-02-05 | 13038002001 | ND |
| 2013-04-01 | 13094014201 | ND |
| 2013-07-01 | 13184010101 | ND |
| 2013-10-01 | 13277001301 | ND |
| 2013-11-18 | 13325006301 | ND |
| 2014-02-26 | 14058002301 | ND |
| 2014-03-10 | 14072007401 | ND |
| 2016-01-05 | 16008005301 | ND |
| 2016-02-01 | 16035000101 | ND |
| 2017-01-04 | 17005018601 | ND |