trans-1,2-Dichloroethylene
Rubidoux Community SD
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 |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 6 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-05-15 | 4790-015-0755 | ND |
2014-05-15 | 4790-014-0800 | ND |
2014-05-15 | 4790-013-0815 | ND |
2014-05-15 | 4790-002-0915 | ND |
2016-03-18 | 4790-006-1110 | ND |
2016-05-10 | 4790-004-1200 | ND |
2016-05-10 | 4790-006-1215 | ND |
2016-05-10 | 4790-013-1045 | ND |
2016-05-10 | 4790-002-1030 | ND |
2016-05-10 | 4790-014-1100 | ND |
2017-05-10 | 4790-013-1000 | ND |
2017-05-10 | 4790-014-1025 | ND |
2017-05-10 | 4790-006-1115 | ND |
2017-05-10 | 4790-004-1045 | ND |
2017-05-10 | 4790-002-0930 | ND |
2019-03-28 | 4790-029-1315 | ND |
2019-05-08 | 4790-013-0915 | ND |
2019-05-08 | 4790-002-0816 | ND |
2019-05-09 | 4790-006-1330 | ND |
2019-10-02 | 4790-029-0140 | ND |