trans-1,2-Dichloroethylene
Alamogordo Domestic Water System
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 5 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-02-18 | 1402856-001A | ND |
2014-02-18 | 1402855-001A | ND |
2014-02-18 | 1402844-001A | ND |
2014-02-18 | 1402848-001A | ND |
2014-02-18 | 1402852-001A | ND |
2015-03-19 | 1503A91-001A | ND |
2015-03-19 | 1503A92-001A | ND |
2015-12-01 | 1512211-001A | ND |
2016-06-14 | 1606A65-001A | ND |
2016-06-14 | 1606A99-001A | ND |
2016-06-14 | 1606A64-001A | ND |
2017-02-14 | 1702738-001 | ND |
2017-02-14 | 1702739-001 | ND |
2017-04-19 | 1704A01-001 | ND |
2017-04-19 | 1704A02-001 | ND |
2017-04-19 | 1704A04-001 | ND |
2018-03-08 | 1803574-001 | ND |
2018-03-08 | 1803575-001 | ND |
2018-03-08 | 1803576-001 | ND |
2019-03-05 | 1903328-001 | ND |
2019-03-05 | 1903334-001 | ND |
2019-03-05 | 1903341-002 | ND |