trans-1,2-Dichloroethylene
Mooreville-richmond W/a #2
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 | ND | 4 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 1 | 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 |
---|---|---|
2015-08-25 | 150826-012VO | ND |
2015-08-25 | 150826-013VO | ND |
2015-08-25 | 150826-014VO | ND |
2015-11-12 | 151113-001VO | ND |
2016-03-07 | 160308-023VO | ND |
2016-06-14 | 160615-002VO | ND |
2016-07-25 | 160726-016VO | ND |
2017-03-14 | 170315-025VO | ND |
2017-06-12 | 170613-002VO | ND |
2017-08-10 | 170811-004VO | ND |
2017-11-08 | 171109-017VO | ND |
2019-01-30 | 190131-004VO | ND |