cis-1,2-Dichloroethylene
East Cherry Creek Valley Water and Sanitation 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 | 4 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 18 | 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 | Result |
---|---|
2014-02-21 | ND |
2014-05-19 | ND |
2014-08-18 | ND |
2014-11-19 | ND |
2015-02-03 | ND |
2015-02-03 | ND |
2015-06-08 | ND |
2015-06-08 | ND |
2015-06-08 | ND |
2015-06-08 | ND |
2015-06-23 | ND |
2015-06-23 | ND |
2015-06-23 | ND |
2015-06-23 | ND |
2016-03-08 | ND |
2016-08-03 | ND |
2016-08-25 | ND |
2016-08-31 | ND |
2017-06-20 | ND |
2017-08-15 | ND |
2017-11-07 | ND |
2018-02-06 | ND |
2018-04-12 | ND |
2018-07-20 | ND |
2018-07-20 | ND |
2018-07-20 | ND |
2018-07-20 | ND |
2018-07-20 | ND |
2019-04-22 | ND |
2019-04-22 | ND |
2019-06-11 | ND |
2019-06-11 | ND |
2019-06-11 | ND |
2019-06-21 | ND |
2019-06-24 | ND |
2019-06-25 | ND |
2019-06-27 | ND |
2019-10-24 | ND |
2019-10-28 | ND |
2019-11-14 | ND |
2019-11-14 | ND |
2019-11-14 | ND |
2019-12-03 | ND |
2019-12-09 | ND |
2019-12-10 | ND |
2019-12-12 | ND |