cis-1,2-Dichloroethylene
City of La Habra
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 | 9 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-01-17 | 3761-031-1107 | ND |
2014-01-17 | 3761-028-1141 | ND |
2014-04-14 | 3761-028-1412 | ND |
2014-04-16 | 3761-031-1250 | ND |
2014-07-21 | 3761-031-1508 | ND |
2014-07-21 | 3761-028-1429 | ND |
2014-09-04 | 3761-031-1055 | ND |
2014-09-04 | 3761-028-1151 | ND |
2014-09-04 | 3761-004-1124 | ND |
2015-09-21 | 3761-004-1400 | ND |
2015-09-21 | 3761-028-1515 | ND |
2015-09-21 | 3761-031-1450 | ND |
2016-09-16 | 3761-028-1125 | ND |
2016-09-16 | 3761-031-1100 | ND |
2016-10-04 | 3761-004-1530 | ND |
2017-09-25 | 3761-028-1145 | ND |
2017-09-27 | 3761-031-1435 | ND |
2017-11-17 | 3761-004-1152 | ND |
2018-09-14 | 3761-031-1042 | ND |
2018-09-14 | 3761-028-1111 | ND |
2018-09-14 | 3761-004-1140 | ND |
2019-09-11 | 3761-031-1100 | ND |
2019-09-11 | 3761-028-1025 | ND |
2019-09-11 | 3761-004-1140 | ND |