cis-1,2-Dichloroethylene
Notla Water Authority
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.
17
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-06-03 | AI42034 | ND |
| 2015-04-14 | AI74803 | ND |
| 2016-05-04 | AJ11580 | ND |
| 2016-05-04 | AJ11586 | ND |
| 2016-05-04 | AJ11585 | ND |
| 2016-05-04 | AJ11584 | ND |
| 2016-05-04 | AJ11583 | ND |
| 2016-05-04 | AJ11582 | ND |
| 2016-05-04 | AJ11581 | ND |
| 2016-05-04 | AJ11579 | ND |
| 2017-06-19 | AJ57872 | ND |
| 2018-06-06 | AJ90906 | ND |
| 2019-05-15 | AK17594 | ND |
| 2019-05-15 | AK17598 | ND |
| 2019-05-15 | AK17597 | ND |
| 2019-05-15 | AK17596 | ND |
| 2019-05-15 | AK17595 | ND |