trans-1,2-Dichloroethylene
Breezy Hill WD
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 7 | 0 | ND |
2015 | ND | 11 | 0 | ND |
2016 | ND | 11 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 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 | AD34143 | ND |
2014-01-08 | AD34134 | ND |
2014-04-08 | AD38188 | ND |
2014-04-08 | AD38161 | ND |
2014-08-13 | AD43964 | ND |
2014-08-13 | AD43987 | ND |
2014-10-22 | AD47078 | ND |
2015-02-11 | AD51431 | ND |
2015-02-11 | AD51432 | ND |
2015-02-11 | AD51435 | ND |
2015-02-11 | AD51437 | ND |
2015-02-11 | AD51439 | ND |
2015-04-08 | AD53968 | ND |
2015-07-15 | AD58288 | ND |
2015-07-15 | AD58291 | ND |
2015-07-15 | AD58294 | ND |
2015-07-15 | AD58302 | ND |
2015-11-03 | AD64929 | ND |
2016-02-03 | AD70125 | ND |
2016-04-06 | AD73816 | ND |
2016-04-06 | AD73815 | ND |
2016-04-06 | AD73814 | ND |
2016-04-06 | AD73813 | ND |
2016-04-06 | AD73817 | ND |
2016-04-06 | AD73811 | ND |
2016-04-06 | AD73818 | ND |
2016-09-27 | AD83034 | ND |
2016-10-26 | AD84691 | ND |
2016-12-08 | AD86916 | ND |
2017-03-08 | AD90840 | ND |
2017-03-08 | AD90883 | ND |
2017-04-05 | AD92222 | ND |
2017-07-05 | AD96785 | ND |
2017-10-24 | AE02469 | ND |
2018-02-28 | AE08415 | ND |
2018-03-06 | AE08892 | ND |
2018-04-04 | AE10340 | ND |
2018-07-11 | AE14848 | ND |
2018-10-23 | AE20312 | ND |
2019-01-09 | AE23835 | ND |
2019-01-09 | AE23798 | ND |
2019-06-05 | AE31433 | ND |
2019-07-10 | AE33378 | ND |
2019-10-02 | AE38157 | ND |