trans-1,2-Dichloroethylene
Troy Utilities
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 | 4 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 7 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for trans-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 |
---|---|---|
2014-03-04 | 112403042014-1 | ND |
2014-06-03 | 112406032014-2 | ND |
2014-08-18 | 112408182014-1 | ND |
2014-10-14 | 112410142014-1V | ND |
2015-03-18 | 1124-031815-VOC- | ND |
2015-03-18 | 112403182015-2 | ND |
2015-05-19 | 1124-051915-VOC- | ND |
2015-05-19 | 112405192015-1 | ND |
2015-09-02 | 112409022015-1 | ND |
2015-10-20 | 112410202015-1V | ND |
2016-03-18 | 112403182015-1V | ND |
2016-04-06 | 1124-040616-VOC- | ND |
2016-11-02 | 112411022016-4 | ND |
2016-11-02 | 112411022016-5 | ND |
2016-11-02 | 112411022016-1 | ND |
2016-11-02 | 112411022016-3 | ND |
2016-11-02 | 112411022016-2 | ND |
2019-05-20 | 19050623-003AA | ND |
2019-05-20 | 19050623-006A | ND |
2019-05-20 | 19050623-005A | ND |
2019-05-20 | 19050623-003A | ND |
2019-05-20 | 19050623-003 | ND |
2019-05-20 | 19050623-002A | ND |
2019-05-20 | 19050623-001A | ND |