cis-1,2-Dichloroethylene
Portales Water System
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.
10
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 |
|---|---|---|---|---|
| 2012 | ND | 2 | 0 | ND |
| 2013 | ND | 3 | 0 | ND |
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 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 |
|---|---|---|
| 2012-09-11 | 2012032645 | ND |
| 2012-10-30 | 2012038985 | ND |
| 2013-03-04 | 1303393-001A | ND |
| 2013-09-05 | 1309246-001A | ND |
| 2013-10-02 | 1310236-001A | ND |
| 2014-07-17 | 1407893-001A | ND |
| 2014-07-17 | 1407894-001A | ND |
| 2015-10-14 | 1510845-001A | ND |
| 2017-06-06 | 2017016935 | ND |
| 2017-06-06 | 2017016936 | ND |