trans-1,2-Dichloroethylene
Benedict
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 | ND | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-02-04 | 0080062_01_03560 | ND |
2014-04-01 | 0080062_01_04277 | ND |
2014-07-10 | 0080062_01_00010 | ND |
2014-10-01 | 0080062_01_00117 | ND |
2015-01-27 | 0080062_01_00229 | ND |
2015-05-26 | E15003654001 | ND |
2015-08-19 | E16000686001 | ND |
2015-10-15 | E16001660001 | ND |
2016-08-10 | E17000587001 | ND |
2017-07-12 | E18000129001 | ND |
2018-04-24 | E18003818001 | ND |
2018-04-24 | E18003818004 | ND |
2019-07-12 | E20000160001 | ND |