cis-1,2-Dichloroethylene
City of Antioch
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 5 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 2 | 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 |
---|---|---|
2016-10-03 | 9590-008-1120 | ND |
2016-10-03 | 9590-010-1350 | ND |
2016-10-03 | 9590-016-0945 | ND |
2016-10-04 | 9590-004-1215 | ND |
2016-10-04 | 9590-009-1410 | ND |
2018-02-26 | 9590-001-1350 | ND |
2018-06-04 | 9590-001-1206 | ND |
2019-06-06 | 9590-001-0800 | ND |