trans-1,2-Dichloroethylene
Anderson Water Department
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 | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 4 | 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 | 2014020374RV-140 | ND |
2014-02-10 | 2014020379RV-140 | ND |
2014-05-11 | 2011050367RV-140 | ND |
2014-05-11 | 2011050368RV-140 | ND |
2015-09-22 | 2015091969RV-150 | ND |
2016-10-25 | 2016101663RV-160 | ND |
2017-05-09 | 2017051066RV-170 | ND |
2017-05-10 | 2017051143RV-170 | ND |
2017-08-08 | 2017082394RV-170 | ND |
2017-11-14 | 2017111330RV-170 | ND |
2018-05-09 | 18051457001RV-18 | ND |
2018-09-17 | 18092076RV-1803 | ND |
2018-11-15 | 18111870001RV-18 | ND |
2019-03-26 | 2019031464RV-190 | ND |
2019-04-03 | 2019040922RV-190 | ND |
2019-07-09 | 2019072432RV-190 | ND |
2019-10-03 | 2019101030RV-190 | ND |