cis-1,2-Dichloroethylene
Montecito Water District
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 | N/A | 0 | 0 | N/A |
2015 | ND | 4 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 3 | 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 |
---|---|---|
2015-05-11 | 5867-001-1203 | ND |
2015-05-11 | 5867-003-1141 | ND |
2015-05-11 | 5867-005-1128 | ND |
2015-05-11 | 5867-040-1110 | ND |
2018-06-25 | 5867-001-1005 | ND |
2018-06-25 | 5867-003-0950 | ND |
2018-06-25 | 5867-005-0925 | ND |
2019-03-01 | 5867-040-0830 | ND |