trans-1,2-Dichloroethylene
SJWTX Triple Peak Plant
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 | 6 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 12 | 0 | ND |
2018 | ND | 9 | 0 | ND |
2019 | ND | 8 | 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 |
---|---|---|
2014-03-31 | AC48694 | ND |
2014-04-17 | AC51098 | ND |
2014-06-24 | AC57808 | ND |
2014-06-24 | AC57804 | ND |
2014-06-24 | AC57812 | ND |
2014-07-24 | AC60887 | ND |
2015-06-03 | AC94443 | ND |
2015-06-03 | AC94413 | ND |
2015-06-03 | AC94433 | ND |
2015-06-03 | AC94415 | ND |
2015-08-05 | AD02661 | ND |
2015-11-03 | AD12401 | ND |
2016-01-26 | AD20094 | ND |
2016-01-26 | AD20098 | ND |
2016-01-26 | AD20106 | ND |
2016-04-22 | AD33995 | ND |
2016-07-26 | AD45733 | ND |
2016-07-26 | AD45721 | ND |
2016-12-01 | AD59882 | ND |
2017-02-01 | AD68121 | ND |
2017-02-01 | AD68127 | ND |
2017-05-03 | AD82811 | ND |
2017-05-03 | AD82809 | ND |
2017-05-31 | AD86169 | ND |
2017-05-31 | AD86145 | ND |
2017-05-31 | AD86143 | ND |
2017-05-31 | AD86159 | ND |
2017-06-26 | AD87809 | ND |
2017-06-26 | AD87805 | ND |
2017-07-27 | AD91124 | ND |
2017-07-27 | AD91116 | ND |
2018-04-23 | AE23473 | ND |
2018-04-23 | AE23479 | ND |
2018-06-20 | AE30750 | ND |
2018-06-20 | AE30756 | ND |
2018-06-20 | AE30754 | ND |
2018-06-20 | AE30798 | ND |
2018-07-24 | AE34343 | ND |
2018-08-27 | AE38540 | ND |
2018-11-06 | AE45441 | ND |
2019-02-12 | AE54209 | ND |
2019-02-12 | AE54211 | ND |
2019-05-22 | AE67691 | ND |
2019-05-22 | AE67685 | ND |
2019-05-22 | AE67687 | ND |
2019-05-22 | AE67689 | ND |
2019-06-18 | AE71128 | ND |
2019-07-01 | AE72854 | ND |