cis-1,2-Dichloroethylene
Waialua
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-02-12 | 201402140299 | ND |
| 2014-07-10 | C14-07-0095A | ND |
| 2014-08-04 | 201408060608 | ND |
| 2014-10-01 | 201410030253 | ND |
| 2014-10-20 | 201410220106 | ND |
| 2015-01-20 | 201501210185 | ND |
| 2016-01-12 | ND | |
| 2017-02-22 | ND | |
| 2018-01-29 | 201801300813 | ND |
| 2019-01-31 | 201902010245 | ND |