trans-1,2-Dichloroethylene
Lakeside 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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-06-09 | 14061560-01 | ND |
| 2015-04-20 | 12774088 | ND |
| 2015-06-01 | 12908150 | ND |
| 2015-10-21 | 13412301 | ND |
| 2016-02-03 | 13891284 | ND |
| 2016-06-15 | 14437205 | ND |
| 2016-06-15 | 14437226 | ND |
| 2016-08-16 | 14767710 | ND |
| 2016-08-16 | 14767752 | ND |
| 2016-11-14 | 15400191 | ND |
| 2017-02-14 | 15681380 | ND |
| 2017-02-14 | 15681422 | ND |
| 2017-05-16 | 16126377 | ND |
| 2017-09-05 | 16755521 | ND |
| 2017-09-05 | 16755542 | ND |
| 2017-11-14 | 17049528 | ND |
| 2018-09-12 | 8092986-01 | ND |
| 2019-06-17 | 9064827-01 | ND |