cis-1,2-Dichloroethylene
Montgomery County Municipal Utility District 8
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.
12
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 | 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 |
|---|---|---|
| 2014-07-23 | AC60682 | ND |
| 2014-07-23 | AC60688 | ND |
| 2015-07-21 | AD00417 | ND |
| 2015-07-21 | AD00427 | ND |
| 2016-10-18 | AD53582 | ND |
| 2016-10-18 | AD53576 | ND |
| 2017-09-14 | AD96259 | ND |
| 2017-09-14 | AD96285 | ND |
| 2018-01-10 | AE08615 | ND |
| 2018-01-10 | AE08627 | ND |
| 2019-08-06 | AE77267 | ND |
| 2019-08-06 | AE77285 | ND |