cis-1,2-Dichloroethylene
Old West Cabins
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.
7
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 | N/A | 0 | 0 | N/A |
| 2016 | 1.67 ppb | 3 | 3 | 1.60 ppb - 1.80 ppb |
| 2017 | 0.940 ppb | 3 | 3 | 0.860 ppb - 1.000 ppb |
| 2018 | 0.540 ppb | 1 | 1 | 0.540 ppb |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2016-05-26 | C16050822-001L | 1.80 ppb |
| 2016-09-12 | C16090392-001H | 1.60 ppb |
| 2016-12-06 | C16120143-001L | 1.60 ppb |
| 2017-03-20 | C17030648-001L | 0.960 ppb |
| 2017-09-27 | C17090855-001H | 0.860 ppb |
| 2017-10-31 | C17110034-001L | 1.000 ppb |
| 2018-05-07 | C18050312-001C | 0.540 ppb |