cis-1,2-Dichloroethylene
California Water Service (CWS) - King City
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 | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-08-26 | 5701-014-1220 | ND |
2014-08-26 | 5701-015-1409 | ND |
2015-06-11 | 5701-008-1130 | ND |
2016-03-16 | 5701-006-1400 | ND |
2016-03-16 | 5701-012-1100 | ND |
2016-06-20 | 5701-014-1317 | ND |
2016-09-19 | 5701-007-1054 | ND |
2017-06-21 | 5701-015-1444 | ND |
2018-06-20 | 5701-008-1020 | ND |
2019-03-20 | 5810-012-1130 | ND |
2019-04-17 | 5701-006-1155 | ND |
2019-06-17 | 5701-014-1016 | ND |
2019-09-17 | 5701-007-1131 | ND |
2019-10-15 | 5701-006-1500 | ND |