cis-1,2-Dichloroethylene
Rimrock Road Neighborhood
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | 0.0331 ppb | 36 | 3 | ND - 0.540 ppb |
2016 | 0.0167 ppb | 21 | 1 | ND - 0.350 ppb |
2017 | 0.0498 ppb | 44 | 5 | ND - 0.570 ppb |
2018 | 0.0621 ppb | 34 | 8 | ND - 0.400 ppb |
2019 | 0.0432 ppb | 25 | 3 | ND - 0.390 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 |
---|---|---|
2014-08-07 | 150039001 | ND |