trans-1,2-Dichloroethylene
Byron
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 | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 6 | 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 |
---|---|---|
2014-01-14 | 1401544-001A | ND |
2014-05-12 | 1405525-001A | ND |
2014-05-12 | 1405525-003A | ND |
2015-05-06 | 1505383-001A | ND |
2015-05-06 | 1505383-003A | ND |
2015-10-21 | 1510I87-001A | ND |
2016-01-12 | 1601659-001A | ND |
2016-04-12 | 1604872-001A | ND |
2017-04-26 | 35375001 | ND |
2017-04-26 | 35375101 | ND |
2018-03-21 | 18C0512-02_01 | ND |
2018-03-21 | 18C0512-01_01 | ND |
2018-04-24 | 38996201 | ND |
2018-07-24 | 40183601 | ND |
2018-08-06 | 18H0264-01_02 | ND |
2018-09-26 | 41906001 | ND |
2018-12-14 | 41278001 | ND |
2019-01-15 | 42261701 | ND |
2019-07-10 | 45953001 | ND |
2019-09-11 | 44922001 | ND |
2019-10-22 | 46635901 | ND |
2019-11-18 | 19K0462-02 | ND |
2019-11-18 | 19K0462-01 | ND |