trans-1,2-Dichloroethylene
North Las Vegas Utilities
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 | 3 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 1 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-11 | 14020153-002 | ND |
2014-06-25 | 14060514-002 | ND |
2014-07-31 | 14070541-002 | ND |
2014-09-16 | 14090267-002 | ND |
2015-06-15 | 15060255-002 | ND |
2015-06-17 | 15060303-002 | ND |
2015-09-09 | 15090133-002 | ND |
2017-10-11 | S1707252002 | ND |
2018-01-22 | S1800641002 | ND |
2018-01-22 | S1800641003 | ND |
2018-09-12 | S1803646002 | ND |
2018-09-12 | S1803646003 | ND |