cis-1,2-Dichloroethylene
Geary
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.
11
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2017-02-01 | SDWA-1117854-00 | ND |
| 2017-02-01 | SDWA-1117855-00 | ND |
| 2017-09-05 | SDWA-1183742-00 | ND |
| 2017-12-05 | SDWA-1214303-00 | ND |
| 2018-01-30 | SDWA-1228010-00 | ND |
| 2018-04-04 | SDWA-1251685-00 | ND |
| 2018-07-10 | SDWA-1280192-00 | ND |
| 2018-10-19 | SDWA-1313571-03 | ND |
| 2019-02-06 | SDWA-1338860-00 | ND |
| 2019-04-02 | SDWA-1361027-00 | ND |
| 2019-08-05 | SDWA-1392180-00 | ND |