cis-1,2-Dichloroethylene
Fern Valley 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 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 10 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2017-05-16 | 4790-004-0935 | ND |
2017-05-16 | 4790-005-1006 | ND |
2017-05-16 | 4790-009-0920 | ND |
2017-05-16 | 4790-010-0925 | ND |
2017-05-16 | 4790-014-1153 | ND |
2017-05-16 | 4790-016-1040 | ND |
2017-05-16 | 4790-021-1027 | ND |
2017-05-16 | 4790-022-1038 | ND |
2017-06-01 | 4790-011-0925 | ND |
2017-06-01 | 4790-015-1020 | ND |