trans-1,2-Dichloroethylene
Hellertown Borough 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 | 6 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 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 |
---|---|---|
2014-04-08 | 140014669 | ND |
2014-04-10 | 140014700 | ND |
2014-04-11 | 140014712 | ND |
2014-08-05 | 140034958 | ND |
2014-08-06 | 140034959 | ND |
2014-08-06 | 140034960 | ND |
2015-04-08 | 12670908 | ND |
2015-04-08 | 12670875 | ND |
2016-04-11 | 14152770 | ND |
2016-04-14 | 14152801 | ND |
2017-05-15 | 16309929 | ND |
2017-05-16 | 16309979 | ND |
2017-05-17 | 16310029 | ND |
2018-05-14 | 8013347-01 | ND |
2018-06-12 | 8016922-01 | ND |
2019-04-16 | 9010993-01 | ND |
2019-05-20 | 9016940-01 | ND |