cis-1,2-Dichloroethylene
Kalaheo-Koloa
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.
28
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 | 3 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 11 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-04-15 | C14-04-0141A | ND |
| 2014-04-15 | C14-04-0142A | ND |
| 2014-04-15 | C14-04-0140A | ND |
| 2015-07-06 | C15-07-0148A | ND |
| 2015-07-08 | C15-07-0208A | ND |
| 2016-06-27 | ND | |
| 2016-06-27 | ND | |
| 2016-06-27 | ND | |
| 2016-06-29 | ND | |
| 2016-06-29 | ND | |
| 2016-06-29 | ND | |
| 2016-06-29 | ND | |
| 2016-06-29 | ND | |
| 2017-05-16 | ND | |
| 2018-01-29 | 201801000000 | ND |
| 2018-01-29 | 201801310036 | ND |
| 2018-04-18 | C18-04-0172A | ND |
| 2018-04-18 | C18-04-0173A | ND |
| 2018-04-18 | C18-04-0170A | ND |
| 2018-04-18 | C18-04-0171A | ND |
| 2018-06-04 | C18-06-0010A | ND |
| 2018-06-04 | C18-06-0009A | ND |
| 2018-06-05 | C18-06-0031A | ND |
| 2018-06-05 | C18-06-0032A | ND |
| 2018-06-05 | C18-06-0033A | ND |
| 2019-01-30 | 201901310193 | ND |
| 2019-07-17 | C19-07-0162A | ND |
| 2019-10-21 | C19-10-0070A | ND |