trans-1,2-Dichloroethylene
Eielson - Air Force Base
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 | 6 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-01-08 | VO*1147515001 | ND |
| 2015-01-13 | VO*1157516001 | ND |
| 2015-01-13 | VO*1157516002 | ND |
| 2015-01-13 | VO*1157516003 | ND |
| 2015-01-13 | VO*1157516004 | ND |
| 2015-01-13 | VO*1157516005 | ND |
| 2015-01-13 | VO*1157516006 | ND |
| 2016-03-01 | VO*1167680001 | ND |
| 2016-03-21 | VO*1161289002 | ND |
| 2017-01-17 | VO*1177525001 | ND |
| 2018-02-05 | VO*1189052001 | ND |
| 2019-01-22 | 1199022001 | ND |
| 2019-01-22 | 1199022003 | ND |
| 2019-01-22 | 1199022002 | ND |
| 2019-01-22 | 1199022005 | ND |
| 2019-01-22 | 1199022004 | ND |