trans-1,2-Dichloroethylene
Houston County - Feagin Mill
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 | 1 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 13 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-03-31 | AI36885 | ND |
| 2015-03-09 | AI68555 | ND |
| 2015-03-09 | AI68554 | ND |
| 2015-03-09 | AI68553 | ND |
| 2015-03-09 | AI68552 | ND |
| 2015-03-09 | AI68551 | ND |
| 2015-03-09 | AI68550 | ND |
| 2015-03-09 | AI68549 | ND |
| 2015-03-09 | AI68548 | ND |
| 2015-03-09 | AI68547 | ND |
| 2015-03-09 | AI68546 | ND |
| 2018-03-07 | AJ85200 | ND |
| 2018-03-07 | AJ85202 | ND |
| 2018-03-07 | AJ85201 | ND |
| 2018-03-07 | AJ85198 | ND |
| 2018-03-07 | AJ85197 | ND |
| 2018-03-07 | AJ85195 | ND |
| 2018-03-07 | AJ85194 | ND |
| 2018-03-07 | AJ85193 | ND |
| 2018-03-07 | AJ85192 | ND |
| 2018-05-01 | AJ88366 | ND |
| 2018-05-01 | AJ88365 | ND |
| 2018-07-16 | AJ94220 | ND |
| 2018-10-30 | AK04996 | ND |
| 2019-01-15 | AK09485 | ND |
| 2019-04-15 | AK15201 | ND |
| 2019-05-28 | AK18282 | ND |