cis-1,2-Dichloroethylene
Brooklawn Water Departme
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.
6
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 | N/A | 0 | 0 | N/A |
| 2015 | 0.350 ppb | 1 | 1 | 0.350 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.403 ppb | 3 | 1 | ND - 1.21 ppb |
| 2019 | 1.15 ppb | 2 | 2 | 0.500 ppb - 1.79 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 |
|---|---|---|
| 2015-08-20 | L5637470-1 | 0.350 ppb |
| 2018-04-09 | Q73816VOC | 1.21 ppb |
| 2018-07-24 | Q76954VOC | ND |
| 2018-10-11 | Q79180VOC | ND |
| 2019-03-11 | R82457VOC | 0.500 ppb |
| 2019-05-09 | R84573VOC | 1.79 ppb |