cis-1,2-Dichloroethylene
Shorewood Hills 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.
14
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-11-10 | 167783001 | ND |
| 2014-11-11 | 168020001 | ND |
| 2015-11-25 | 230091001 | ND |
| 2015-11-25 | 230091003 | ND |
| 2016-11-30 | 290730001 | ND |
| 2016-11-30 | 290731001 | ND |
| 2017-11-06 | 352345001 | ND |
| 2017-11-06 | 352346001 | ND |
| 2018-11-19 | 420369001 | ND |
| 2018-11-19 | 420372001 | ND |
| 2019-11-18 | 481795001 | ND |
| 2019-11-18 | 481819001 | ND |
| 2019-12-09 | 484891001 | ND |
| 2019-12-09 | 484892001 | ND |