trans-1,2-Dichloroethylene
Fort Smith Water 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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-01-28 | 14030007201 | ND |
2014-11-24 | 14330004501 | ND |
2015-01-14 | 15016002501 | ND |
2015-10-26 | 15303000101 | ND |
2016-01-14 | 16015003401 | ND |
2016-10-31 | 16308001701 | ND |
2017-01-31 | 17033002101 | ND |
2017-10-16 | 17292010301 | ND |
2018-10-22 | 18298002509 | ND |
2019-01-29 | 19031004401 | ND |
2019-01-29 | 19031004901 | ND |
2019-04-23 | 19115003301 | ND |
2019-08-28 | 19241001501 | ND |
2019-10-08 | 19283007901 | ND |