trans-1,2-Dichloroethylene
Park WC - Lynwood
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 | 4 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-02-13 | 9588-005-1010 | ND |
2014-05-29 | 9588-005-1130 | ND |
2014-08-21 | 9588-005-1330 | ND |
2014-11-12 | 9588-005-1315 | ND |
2015-02-26 | 9588-005-1230 | ND |
2015-05-08 | 9588-005-1150 | ND |
2015-08-05 | 9588-005-0915 | ND |
2015-11-19 | 9588-005-1035 | ND |
2016-04-14 | 9588-005-0945 | ND |
2016-05-25 | 9588-005-1030 | ND |
2016-08-04 | 9588-005-1210 | ND |
2016-11-15 | 9588-005-0925 | ND |
2017-02-23 | 9588-005-1315 | ND |
2017-11-30 | 9588-005-0945 | ND |
2018-02-27 | 9588-005-1230 | ND |
2018-05-11 | 9588-005-1000 | ND |
2018-08-16 | 9588-005-0715 | ND |
2018-11-08 | 9588-005-1030 | ND |
2019-02-13 | 9588-005-0930 | ND |
2019-05-15 | 9588-005-0930 | ND |
2019-08-13 | 9588-005-0945 | ND |
2019-11-12 | 9588-005-1450 | ND |