trans-1,2-Dichloroethylene
Anniston Water and Sewer Board
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 | 5 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-03-06 | AC62742 | ND |
| 2014-03-20 | AC64271 | ND |
| 2014-05-07 | AC69322 | ND |
| 2014-08-07 | AC78719 | ND |
| 2014-10-16 | AC86385 | ND |
| 2015-01-08 | AC95217 | ND |
| 2015-04-09 | AD04592 | ND |
| 2015-07-16 | AD15095 | ND |
| 2015-10-07 | AD23931 | ND |
| 2016-01-27 | 1601110-1 | ND |
| 2016-04-14 | 1604785-1 | ND |
| 2016-07-14 | 1608975-1V | ND |
| 2016-10-06 | 1612748-1 | ND |
| 2017-02-09 | 1701907-1 | ND |
| 2017-02-23 | 1702643-1 | ND |
| 2017-04-27 | 1705818-1 | ND |
| 2017-07-06 | 1709340-1 | ND |
| 2017-10-05 | 1714012-1 | ND |
| 2018-03-08 | 1803230-1 | ND |
| 2018-07-12 | 1809294-1 | ND |
| 2019-07-25 | L1122213-01 | ND |