trans-1,2-Dichloroethylene
City of Kilgore
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-07-08 | Q1426289011 | ND |
| 2014-07-08 | Q1426289013 | ND |
| 2015-02-17 | Q1506274002 | ND |
| 2015-04-15 | Q1514525005 | ND |
| 2015-07-24 | Q1529137002 | ND |
| 2016-01-13 | Q1601372002 | ND |
| 2016-07-06 | Q1627132002 | ND |
| 2017-04-06 | Q1714264009 | ND |
| 2017-05-25 | Q1722388002 | ND |
| 2017-07-07 | Q1727773005 | ND |
| 2017-10-04 | Q1748893005 | ND |
| 2018-02-01 | Q1804019008 | ND |
| 2018-02-01 | Q1804019002 | ND |
| 2019-02-13 | Q1906685005 | ND |
| 2019-08-08 | Q1952473002 | ND |