1,1-Dichloroethane
City of Edmonds
NOTE: City of Edmonds purchases water from Alderwood Water District which is required to test for 1,1-dichloroethane. Sample information shown below was taken by Alderwood Water District.
1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 3 ppb
The EWG Health Guideline of 3 ppb for 1,1-dichloroethane 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 cancer.
ppb = parts per billion
All test results
NOTE: City of Edmonds purchases water from Alderwood Water District which is required to test for 1,1-dichloroethane. Sample information shown below was taken by Alderwood Water District.
| Date | Lab ID | Result |
|---|---|---|
| 2013-02-11 | WA97-SE1-13-0241 | ND |
| 2013-05-08 | WA97-SE2-13-0788 | ND |
| 2013-08-15 | WA97-SE3-13-1524 | ND |
| 2013-11-06 | WA97-SE4-13-2119 | ND |