trans-1,2-Dichloroethylene
Porter SUD
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 | 1 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 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 |
---|---|---|
2014-07-08 | AC59005 | ND |
2015-04-13 | AC87989 | ND |
2015-04-13 | AC87995 | ND |
2015-04-13 | AC87983 | ND |
2015-04-13 | AC87991 | ND |
2015-04-13 | AC88001 | ND |
2015-04-13 | AC88005 | ND |
2015-09-30 | AD09108 | ND |
2015-09-30 | AD09106 | ND |
2015-11-19 | AD14236 | ND |
2015-11-19 | AD14238 | ND |
2016-01-12 | AD17610 | ND |
2016-01-12 | AD17618 | ND |
2016-01-12 | AD17620 | ND |
2016-01-12 | AD17608 | ND |
2016-01-12 | AD17602 | ND |
2017-01-19 | AD65761 | ND |
2017-01-19 | AD65751 | ND |
2017-01-19 | AD65767 | ND |
2017-01-19 | AD65769 | ND |
2017-10-11 | AE00408 | ND |
2018-01-09 | AE08391 | ND |
2018-01-09 | AE08367 | ND |
2018-01-09 | AE08369 | ND |
2018-01-09 | AE08409 | ND |
2018-11-26 | AE46856 | ND |
2019-01-23 | AE50957 | ND |
2019-01-23 | AE50961 | ND |
2019-01-23 | AE50955 | ND |
2019-01-23 | AE50953 | ND |
2019-01-23 | AE50951 | ND |