cis-1,2-Dichloroethylene
Monona Waterworks
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 | ND | 5 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-09-02 | 154323001 | ND |
2014-09-02 | 154276001 | ND |
2014-09-05 | 155135001 | ND |
2014-09-25 | 159907001 | ND |
2014-12-12 | 172471001 | ND |
2015-01-30 | 177607001 | ND |
2015-06-16 | 199937001 | ND |
2015-07-14 | 205376001 | ND |
2015-07-14 | 205378001 | ND |
2015-11-17 | 228870001 | ND |
2016-02-01 | 237611001 | ND |
2016-04-06 | 247252001 | ND |
2016-07-07 | 264567001 | ND |
2016-09-28 | 280796001 | ND |
2016-10-20 | 285154001 | ND |
2017-03-30 | 306799001 | ND |
2017-04-13 | 309656001 | ND |
2017-04-13 | 309655001 | ND |
2017-04-13 | 309654001 | ND |
2017-09-22 | 344258001 | ND |
2018-07-11 | 393604001 | ND |
2018-09-25 | 410134001 | ND |
2019-04-24 | 442084001 | ND |
2019-09-05 | 467810001 | ND |