trans-1,2-Dichloroethylene
Floyd County
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-03-18 | AI36204 | ND |
2014-04-09 | AI37698 | ND |
2015-02-24 | AI65405 | ND |
2015-02-24 | AI65404 | ND |
2015-02-24 | AI65403 | ND |
2015-06-03 | AI78696 | ND |
2015-07-14 | AI82874 | ND |
2015-10-13 | AI92694 | ND |
2016-01-25 | AJ04875 | ND |
2016-01-25 | AJ04874 | ND |
2017-05-09 | AJ55010 | ND |
2017-05-09 | AJ55009 | ND |
2018-02-26 | AJ84509 | ND |
2018-02-26 | AJ84508 | ND |
2018-02-26 | AJ84507 | ND |
2018-02-26 | AJ84506 | ND |
2019-04-03 | AK14481 | ND |
2019-04-03 | AK14482 | ND |