trans-1,2-Dichloroethylene
East Cocalico Township
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 | 10 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 15 | 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 |
|---|---|---|
| 2014-05-23 | 14030254-04 | ND |
| 2014-05-23 | 14030254-05 | ND |
| 2014-05-23 | 14030254-06 | ND |
| 2014-05-23 | 14032953-06 | ND |
| 2014-05-23 | 14030254-08 | ND |
| 2014-05-23 | 14032953-08 | ND |
| 2014-05-30 | 14032953-02 | ND |
| 2014-05-30 | 14030254-03 | ND |
| 2014-05-30 | 14030254-07 | ND |
| 2014-05-30 | 14030254-01 | ND |
| 2015-04-28 | 12984621 | ND |
| 2015-04-28 | 12984620 | ND |
| 2015-04-28 | 12984619 | ND |
| 2016-01-25 | 13957865 | ND |
| 2016-04-19 | 14217174 | ND |
| 2016-08-15 | 14869706 | ND |
| 2016-08-15 | 14869735 | ND |
| 2016-08-15 | 14869759 | ND |
| 2016-09-23 | 15042111 | ND |
| 2016-10-31 | 15336654 | ND |
| 2017-03-03 | 15902762 | ND |
| 2017-09-22 | 16992085 | ND |
| 2017-09-22 | 16846632 | ND |
| 2017-09-22 | 16992148 | ND |
| 2017-09-22 | 16846625 | ND |
| 2017-09-22 | 16846597 | ND |
| 2017-09-22 | 16991937 | ND |
| 2017-09-22 | 16991958 | ND |
| 2017-09-22 | 16991979 | ND |
| 2017-09-22 | 16992000 | ND |
| 2017-09-22 | 16992021 | ND |
| 2017-09-22 | 16992043 | ND |
| 2017-09-22 | 16992064 | ND |
| 2017-09-22 | 16992106 | ND |
| 2017-09-22 | 16992127 | ND |
| 2018-04-27 | 8045051-02RE | ND |
| 2018-04-27 | 8045051-08 | ND |
| 2018-04-27 | 8045051-11 | ND |
| 2018-04-27 | 8045051-10 | ND |
| 2019-04-29 | 9041601-02 | ND |
| 2019-04-29 | 9041601-06 | ND |
| 2019-04-29 | 9041601-08 | ND |
| 2019-04-29 | 9041601-09 | ND |