cis-1,2-Dichloroethylene
Perquimans County Water System
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 | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-02-19 | 8024-021914-E02V | ND |
2014-05-07 | 8024-050714-E02V | ND |
2015-05-06 | ND | |
2016-01-06 | 8024-010616-E01V | ND |
2016-05-04 | 8024-050416-E02V | ND |
2017-05-03 | 8024-050317-E02V | ND |
2018-05-09 | 8024-050918-E02V | ND |
2019-01-08 | 8024-010819-E01V | ND |
2019-04-03 | 8024-040319-E01V | ND |
2019-08-21 | 8024-082119-E01V | ND |
2019-10-15 | 8024-101519-E01V | ND |