cis-1,2-Dichloroethylene
Makawao
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-03-17 | 201403190885 | ND |
2014-03-17 | 201403190888 | ND |
2014-03-17 | 201403190889 | ND |
2014-03-18 | 201403200528 | ND |
2015-01-27 | 201501290273 | ND |
2016-02-19 | ND | |
2017-01-27 | ND | |
2017-01-31 | ND | |
2017-01-31 | ND | |
2017-01-31 | ND | |
2018-02-20 | 201801031001 | ND |
2019-02-08 | 201902120307 | ND |