trans-1,2-Dichloroethylene
Brewster Village
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 6 | 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 |
---|---|---|
2014-01-13 | 420-74006-2POC | ND |
2014-04-02 | 420-76427-2 | ND |
2014-07-14 | 420-79936-3 | ND |
2014-10-21 | 420-83444-2POCS | ND |
2015-01-09 | 420-86213-1POCS | ND |
2015-04-16 | 420-89141-1POCS | ND |
2015-04-16 | 420-89141-2 | ND |
2015-07-08 | 420-92500-1POCS | ND |
2016-01-05 | 420-99275-1 | ND |
2016-10-03 | 420-111211-1POCS | ND |
2016-10-03 | 420-111211-2POCS | ND |
2017-01-04 | 420-115250-2POCS | ND |
2017-01-04 | 420-115250-3POCS | ND |
2017-04-05 | 420-119066-1POCS | ND |
2017-04-05 | 420-119066-2POCS | ND |
2017-10-12 | 420-127735-2POCS | ND |
2018-01-02 | 420-131297-1POCS | ND |
2018-01-02 | 420-131297-2POCS | ND |
2018-04-04 | 420-134888-1POCS | ND |
2018-07-09 | 420-139308-1POCS | ND |
2018-10-01 | 420-143478-5POCS | ND |
2018-10-01 | 420-143478-4POCS | ND |
2019-01-07 | 420-147820-2POCS | ND |
2019-04-01 | 420-151634-3POCS | ND |
2019-07-01 | 420-156238-2POCS | ND |
2019-10-08 | 420-161523-2 | ND |