cis-1,2-Dichloroethylene
Golden State Water Company - Tanglewood
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 | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 2 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-01-08 | 2706-009-0915 | ND |
2014-04-02 | 2706-009-1015 | ND |
2014-07-30 | 2706-009-1030 | ND |
2015-01-21 | 2706-009-0800 | ND |
2016-08-10 | 2706-009-0805 | ND |
2018-01-30 | 9590-009-1200 | ND |
2018-02-13 | 9590-009-1105 | ND |