cis-1,2-Dichloroethylene
Borough of Atglen
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 |
|---|---|---|---|---|
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | 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 |
|---|---|---|
| 2014-03-19 | 1077387001 | ND |
| 2014-06-23 | 2014203001 | ND |
| 2014-07-29 | 2021224001 | ND |
| 2014-09-15 | 2029178001 | ND |
| 2014-12-08 | 2044696001 | ND |
| 2015-06-22 | 12876742 | ND |
| 2016-11-22 | 15221162 | ND |
| 2017-04-11 | 15930753 | ND |
| 2017-05-02 | 16088381 | ND |
| 2017-12-19 | 17156503 | ND |
| 2018-05-01 | 8041270-01 | ND |
| 2019-04-09 | 9041375-01 | ND |