trans-1,2-Dichloroethylene
Windhaven 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 | 8 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 10 | 0 | ND |
| 2018 | ND | 8 | 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 |
|---|---|---|
| 2014-02-10 | 14020727-03 | ND |
| 2014-02-10 | 14020727-04 | ND |
| 2014-05-08 | 14050814-03 | ND |
| 2014-05-08 | 14050814-04 | ND |
| 2014-09-12 | 14091269-03 | ND |
| 2014-09-12 | 14091269-04 | ND |
| 2014-11-05 | 14110544-03 | ND |
| 2014-11-05 | 14110544-04 | ND |
| 2015-02-04 | 12399782 | ND |
| 2015-02-04 | 12399803 | ND |
| 2015-06-03 | 12880288 | ND |
| 2015-06-03 | 12880289 | ND |
| 2015-06-19 | 12880290 | ND |
| 2015-09-01 | 13262910 | ND |
| 2015-09-01 | 13262931 | ND |
| 2015-11-04 | 13387162 | ND |
| 2015-11-04 | 13387183 | ND |
| 2016-02-09 | 13868485 | ND |
| 2016-02-09 | 13868464 | ND |
| 2016-05-12 | 14248669 | ND |
| 2016-05-12 | 14248648 | ND |
| 2016-05-12 | 14248690 | ND |
| 2016-05-12 | 14248625 | ND |
| 2016-11-07 | 15224067 | ND |
| 2016-11-07 | 15224045 | ND |
| 2017-02-08 | 15653105 | ND |
| 2017-02-08 | 15653084 | ND |
| 2017-05-19 | 16092005 | ND |
| 2017-05-19 | 16092028 | ND |
| 2017-05-19 | 16092112 | ND |
| 2017-05-19 | 16092091 | ND |
| 2017-08-23 | 16563348 | ND |
| 2017-08-23 | 16563369 | ND |
| 2017-11-14 | 17021371 | ND |
| 2017-11-14 | 17021392 | ND |
| 2018-02-06 | 8021819-04 | ND |
| 2018-02-06 | 8021819-03 | ND |
| 2018-05-17 | 8053832-03 | ND |
| 2018-05-17 | 8053832-04 | ND |
| 2018-08-14 | 8083605-03 | ND |
| 2018-08-14 | 8083605-04 | ND |
| 2018-11-21 | 8114128-01 | ND |
| 2018-11-21 | 8114128-02 | ND |
| 2019-02-12 | 9022854-03 | ND |
| 2019-02-12 | 9022854-06 | ND |
| 2019-05-20 | 9054272-01 | ND |
| 2019-05-20 | 9054272-04 | ND |
| 2019-08-12 | 9083617-03 | ND |
| 2019-08-12 | 9083617-06 | ND |
| 2019-11-11 | 9112787-06 | ND |
| 2019-11-11 | 9112787-03 | ND |