cis-1,2-Dichloroethylene
Oakboro, Town of
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.
8
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 | 1.09 ppb | 1 | 1 | 1.09 ppb |
| 2015 | 1.13 ppb | 1 | 1 | 1.13 ppb |
| 2016 | 1.27 ppb | 3 | 3 | 1.20 ppb - 1.40 ppb |
| 2017 | 1.40 ppb | 1 | 1 | 1.40 ppb |
| 2018 | 1.10 ppb | 1 | 1 | 1.10 ppb |
| 2019 | 1.30 ppb | 1 | 1 | 1.30 ppb |
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 |
|---|---|---|
| 2014-03-07 | 14030882-01 | 1.09 ppb |
| 2015-02-06 | 1.13 ppb | |
| 2016-01-08 | 16010735 | 1.20 ppb |
| 2016-04-29 | 354434 | 1.20 ppb |
| 2016-08-02 | 22572-01 | 1.40 ppb |
| 2017-03-20 | 32291-01 | 1.40 ppb |
| 2018-03-07 | 47802-01 | 1.10 ppb |
| 2019-03-08 | 63990-01 | 1.30 ppb |