cis-1,2-Dichloroethylene
City of Watsonville
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 | 15 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 14 | 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 |
---|---|---|
2014-02-19 | 9590-009-1430 | ND |
2014-03-19 | 9590-004-0800 | ND |
2014-03-19 | 9590-030-0900 | ND |
2014-03-19 | 9590-029-0845 | ND |
2014-03-19 | 9590-016-0900 | ND |
2014-03-19 | 9590-015-0805 | ND |
2014-03-19 | 9590-014-0740 | ND |
2014-03-19 | 9590-013-0835 | ND |
2014-03-19 | 9590-012-0920 | ND |
2014-03-19 | 9590-011-1000 | ND |
2014-03-19 | 9590-010-0915 | ND |
2014-03-19 | 9590-009-1100 | ND |
2014-03-19 | 9590-007-0840 | ND |
2014-03-19 | 9590-006-0800 | ND |
2014-03-19 | 9590-005-0745 | ND |
2017-03-15 | 9590-004-1040 | ND |
2017-03-15 | 9590-030-1100 | ND |
2017-03-15 | 9590-029-0830 | ND |
2017-03-15 | 9590-016-0840 | ND |
2017-03-15 | 9590-015-1010 | ND |
2017-03-15 | 9590-014-0825 | ND |
2017-03-15 | 9590-013-0945 | ND |
2017-03-15 | 9590-012-0935 | ND |
2017-03-15 | 9590-011-1010 | ND |
2017-03-15 | 9590-010-0955 | ND |
2017-03-15 | 9590-009-1030 | ND |
2017-03-15 | 9590-007-1100 | ND |
2017-03-15 | 9590-006-0910 | ND |
2017-03-15 | 9590-005-0905 | ND |