trans-1,2-Dichloroethylene
Warrior River Water Authority
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 | 2 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-09-19 | 140919010-1 | ND |
2014-12-08 | 141208046-1 | ND |
2015-09-18 | 150918029-3 | ND |
2015-09-18 | 150918029-2 | ND |
2015-09-18 | 150918029-1 | ND |
2015-11-23 | 151123010-2 | ND |
2015-11-23 | 151123010-1 | ND |
2016-09-22 | 160922009-1 | ND |
2016-11-07 | 161107039-1 | ND |
2017-09-19 | 170919017-1 | ND |
2017-10-02 | 171002024-1 | ND |
2018-02-26 | 180226025-1 | ND |
2018-07-31 | 180731030-001 | ND |
2018-07-31 | 180731030-002 | ND |
2018-10-15 | 18100467-001A | ND |
2019-09-03 | 20119714001_IVOC | ND |
2019-11-04 | 20128690001_IVOC | ND |