cis-1,2-Dichloroethylene
Pembroke Water Works
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.
20
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 | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 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 |
|---|---|---|
| 2014-02-04 | 128625.03 | ND |
| 2014-02-04 | 128625.04 | ND |
| 2014-02-04 | 128625.01 | ND |
| 2014-02-04 | 128625.02 | ND |
| 2014-11-17 | 138153.01 | ND |
| 2015-01-21 | 139997.02 | ND |
| 2015-01-21 | 139997.01 | ND |
| 2016-01-05 | 151842.01 | ND |
| 2016-01-05 | 151842.02 | ND |
| 2017-03-01 | 166102.05 | ND |
| 2017-03-01 | 166102.03 | ND |
| 2017-03-01 | 166102.04 | ND |
| 2017-03-02 | 166102.02 | ND |
| 2017-03-02 | 166102.01 | ND |
| 2018-01-16 | 177909.01 | ND |
| 2018-01-16 | 177909.02 | ND |
| 2018-01-16 | 177909.03 | ND |
| 2018-01-18 | 177967.01 | ND |
| 2018-03-01 | 179199.01 | ND |
| 2019-01-03 | 190831.01 | ND |