trans-1,2-Dichloroethylene
Greentop Mobile Home Park
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 | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-04-03 | 1080094001 | ND |
| 2014-04-03 | 1080094002 | ND |
| 2015-02-06 | 12388722 | ND |
| 2015-02-06 | 12388755 | ND |
| 2015-04-22 | 12868312 | ND |
| 2015-04-22 | 12868313 | ND |
| 2016-08-17 | 14890302 | ND |
| 2016-08-17 | 14890329 | ND |
| 2017-03-30 | 15780764 | ND |
| 2017-03-30 | 15780785 | ND |
| 2017-09-06 | 16711749 | ND |
| 2017-09-06 | 16711770 | ND |
| 2017-12-08 | 17147500 | ND |
| 2017-12-08 | 17147563 | ND |
| 2018-04-25 | 8041588-02 | ND |
| 2018-04-25 | 8041588-01 | ND |
| 2018-07-30 | 8081042-01 | ND |
| 2018-07-30 | 8081042-02 | ND |
| 2018-10-03 | 8101597-01 | ND |
| 2018-10-03 | 8101597-02 | ND |
| 2019-02-06 | 9015278-01 | ND |
| 2019-02-06 | 9015278-02 | ND |
| 2019-04-03 | 9041628-01 | ND |
| 2019-04-03 | 9041628-02 | ND |
| 2019-08-07 | 9071786-01 | ND |
| 2019-08-07 | 9071786-02 | ND |
| 2019-12-04 | 9121339-02 | ND |
| 2019-12-04 | 9121339-01 | ND |