cis-1,2-Dichloroethylene
Tombstone, City of
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 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 |
|---|---|---|
| 2016-07-27 | 201607280145V | ND |
| 2016-07-27 | 201607280146V | ND |
| 2016-08-10 | 201608110091V | ND |
| 2017-07-31 | 201708010166V | ND |
| 2017-07-31 | 201708010167V | ND |
| 2017-07-31 | 201708010168V | ND |
| 2018-09-05 | 201809060253V | ND |
| 2018-10-22 | 201810240057V | ND |
| 2019-11-25 | 201911270015V | ND |
| 2019-11-25 | 201911270016V | ND |