trans-1,2-Dichloroethylene
Bladen County Water Dist-east Bladen
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 | 10 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-01-02 | 8528-010214-E03V | ND |
| 2014-01-22 | 8528-012214-E12V | ND |
| 2014-04-02 | 8528-040214-E02V | ND |
| 2014-04-02 | 8528-040214-E03V | ND |
| 2014-04-02 | 8528-040214-E12V | ND |
| 2014-07-02 | 8528-070214-E03V | ND |
| 2014-07-02 | 8528-070214-E12V | ND |
| 2014-10-01 | 8528-100114-E03V | ND |
| 2014-10-01 | 8528-100114-E12V | ND |
| 2014-11-05 | 8528-110514-E7AV | ND |
| 2015-01-07 | ND | |
| 2015-01-07 | ND | |
| 2015-04-01 | ND | |
| 2015-04-01 | ND | |
| 2015-07-01 | ND | |
| 2015-07-01 | ND | |
| 2016-01-06 | 8528-010616-E03V | ND |
| 2016-01-06 | 8528-010616-E12V | ND |
| 2017-01-04 | 8528-010417-E03V | ND |
| 2017-01-04 | 8528-010417-E12V | ND |
| 2018-01-10 | 8528-011018-E03V | ND |
| 2018-01-10 | 8528-011018-E12V | ND |
| 2018-11-07 | 8528-110718-E7AV | ND |
| 2019-01-02 | 8528-010219-E03V | ND |
| 2019-01-02 | 8528-010219-E12V | ND |