trans-1,2-Dichloroethylene
Mcconnellsburg Borough Municipal 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.
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 | 4 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 10 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-08-28 | 2026074002 | ND |
| 2014-08-28 | 2026074003 | ND |
| 2014-08-28 | 2026074004 | ND |
| 2014-08-28 | 2026074001 | ND |
| 2015-11-05 | 13564686 | ND |
| 2015-11-05 | 13564707 | ND |
| 2015-11-05 | 13564728 | ND |
| 2016-04-21 | 14167187 | ND |
| 2016-04-21 | 14167145 | ND |
| 2016-04-21 | 14167166 | ND |
| 2016-11-08 | 15286009 | ND |
| 2017-04-04 | 16004946 | ND |
| 2017-04-18 | 16005133 | ND |
| 2017-04-18 | 16163017 | ND |
| 2017-04-18 | 16633196 | ND |
| 2017-05-03 | 16163075 | ND |
| 2017-05-03 | 16633139 | ND |
| 2017-05-17 | 16163255 | ND |
| 2017-09-20 | 16940880 | ND |
| 2017-09-20 | 16790825 | ND |
| 2017-11-08 | 17080577 | ND |
| 2018-03-28 | (102) HORTON | ND |
| 2018-10-17 | (101) RESERV | ND |
| 2018-10-17 | (104) SECRES | ND |
| 2018-10-17 | (105) SECRES | ND |
| 2019-07-17 | (101) RESERV | ND |
| 2019-07-17 | (102) HORTON | ND |
| 2019-07-17 | (104) SECRES | ND |
| 2019-07-17 | (105) SECRES | ND |