trans-1,2-Dichloroethylene
City of Manteca
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 | 6 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 4 | 0 | ND |
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 |
---|---|---|
2014-01-14 | 5810-042-1055 | ND |
2014-01-14 | 5810-036-0906 | ND |
2014-02-11 | 5810-030-0835 | ND |
2014-06-10 | 5810-015-0720 | ND |
2014-07-08 | 5810-028-0803 | ND |
2014-07-08 | 5810-016-0715 | ND |
2015-02-10 | 5810-040-0820 | ND |
2015-06-09 | 5810-049-0650 | ND |
2015-07-21 | 5810-034-0812 | ND |
2015-11-30 | 5810-044-1005 | ND |
2015-12-09 | 5810-013-0625 | ND |
2016-03-08 | 5810-032-0540 | ND |
2016-04-19 | 5810-012-0920 | ND |
2016-06-14 | 5810-038-0645 | ND |
2016-08-23 | 5810-014-0715 | ND |
2017-01-09 | 5810-036-1030 | ND |
2017-01-09 | 5810-042-0947 | ND |
2017-04-04 | 5810-042-0535 | ND |
2017-07-10 | 5810-028-0847 | ND |
2017-07-10 | 5810-016-0800 | ND |
2017-08-08 | 5810-015-0625 | ND |
2018-02-13 | 5810-040-0910 | ND |
2018-06-12 | 5810-049-0845 | ND |
2018-11-13 | 5810-044-0642 | ND |
2018-12-11 | 5810-013-0540 | ND |
2019-03-12 | 5810-032-0655 | ND |
2019-04-23 | 5810-012-0547 | ND |
2019-06-04 | 5810-056-1242 | ND |
2019-06-11 | 5810-038-0555 | ND |
2019-08-13 | 5810-014-0703 | ND |