cis-1,2-Dichloroethylene
Colby, City 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 9 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 9 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 8 | 0 | ND |
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 |
---|---|---|
2014-05-20 | 117907 | ND |
2014-05-20 | 117893 | ND |
2014-05-20 | 117894 | ND |
2014-05-20 | 117895 | ND |
2014-05-20 | 117896 | ND |
2014-05-20 | 117897 | ND |
2014-05-20 | 117904 | ND |
2014-05-20 | 117905 | ND |
2014-05-20 | 117906 | ND |
2017-05-22 | 765833 | ND |
2017-05-22 | 765840 | ND |
2017-05-22 | 765839 | ND |
2017-05-22 | 765838 | ND |
2017-05-22 | 765837 | ND |
2017-05-22 | 765836 | ND |
2017-05-22 | 765835 | ND |
2017-05-22 | 765834 | ND |
2017-05-22 | 765832 | ND |
2018-03-13 | 937288 | ND |
2018-06-05 | 979790 | ND |
2018-06-05 | 979789 | ND |
2018-08-20 | 1028574 | ND |
2018-08-20 | 1028573 | ND |
2018-11-26 | 1081048 | ND |
2018-11-26 | 1081047 | ND |
2019-02-18 | 1122672 | ND |
2019-02-18 | 1122664 | ND |
2019-05-20 | 1157651 | ND |
2019-05-20 | 1157648 | ND |
2019-08-19 | 1225654 | ND |
2019-08-19 | 1225653 | ND |
2019-11-18 | 1276965 | ND |
2019-11-18 | 1276966 | ND |