cis-1,2-Dichloroethylene
Southeast Polk Rural Water District
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 | 5 | 0 | ND |
2015 | 0.200 ppb | 6 | 2 | ND - 0.700 ppb |
2016 | 0.367 ppb | 6 | 3 | ND - 0.900 ppb |
2017 | 0.140 ppb | 5 | 1 | ND - 0.700 ppb |
2018 | 0.500 ppb | 1 | 1 | 0.500 ppb |
2019 | 0.300 ppb | 7 | 3 | ND - 0.800 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 |
---|---|---|
2018-11-01 | OE735010 | 0.500 ppb |