cis-1,2-Dichloroethylene
City of Escondido
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 | ND | 2 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-05-12 | 2706-018-1022 | ND |
2014-05-12 | 2706-019-1001 | ND |
2015-05-18 | 2706-018-1110 | ND |
2015-05-18 | 2706-019-1010 | ND |
2015-08-17 | 2706-018-1120 | ND |
2015-08-17 | 2706-019-1029 | ND |
2016-05-16 | 2706-018-1010 | ND |
2016-05-16 | 2706-019-0919 | ND |
2017-06-08 | 2706-018-0846 | ND |
2018-08-14 | 2706-018-0900 | ND |
2018-08-14 | 2706-019-0935 | ND |
2019-05-13 | 2706-018-0830 | ND |
2019-11-12 | 2706-019-0800 | ND |