cis-1,2-Dichloroethylene
City of Lancaster
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.
12
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2014-04-22 | 2003193001 | ND |
| 2014-04-22 | 2003193002 | ND |
| 2015-05-26 | 12850317 | ND |
| 2015-05-26 | 12850338 | ND |
| 2016-06-30 | 14698105 | ND |
| 2016-06-30 | 14698127 | ND |
| 2017-07-19 | 16529261 | ND |
| 2017-07-19 | 16529262 | ND |
| 2018-04-23 | 1810508-01 | ND |
| 2018-04-23 | 1810508-02 | ND |
| 2019-01-31 | 3013972001 | ND |
| 2019-01-31 | 3013972003 | ND |