cis-1,2-Dichloroethylene
Hoke Landing S/d
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.
15
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 | ND | 8 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2015-01-22 | ND | |
| 2015-01-22 | ND | |
| 2015-04-10 | ND | |
| 2015-04-10 | ND | |
| 2015-07-29 | ND | |
| 2015-07-29 | ND | |
| 2015-10-01 | ND | |
| 2015-10-05 | ND | |
| 2016-01-08 | C515957-01 | ND |
| 2016-04-15 | CZ03278-01 | ND |
| 2016-07-25 | CZ08387-01 | ND |
| 2016-10-14 | CZ13793-01 | ND |
| 2016-10-24 | CZ16017-01 | ND |
| 2017-01-17 | CZ18812-01 | ND |
| 2017-10-16 | CA13267-01 | ND |