trans-1,2-Dichloroethylene
Elk City
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 | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 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 |
---|---|---|
2014-01-21 | 039143.001 | ND |
2014-04-14 | 042273.001 | ND |
2014-07-21 | 045867.001 | ND |
2014-10-14 | 049669.001 | ND |
2015-01-14 | 052454.001 | ND |
2015-05-27 | 055389.001 | ND |
2015-07-10 | 059561.001 | ND |
2015-10-26 | 064399.001 | ND |
2016-02-18 | 068136.001 | ND |
2016-06-07 | 1606302 | ND |
2016-09-12 | 1609421 | ND |
2016-12-01 | 1612042 | ND |
2017-09-18 | 1709684 | ND |
2018-02-05 | 1802038 | ND |
2019-02-11 | 1902308 | ND |