1,1-Dichloroethane
Concord Water Department
1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.
18
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 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
| Date | Lab ID | Result |
|---|---|---|
| 2013-03-18 | 710208-8344 | ND |
| 2013-06-10 | 724541-9139 | ND |
| 2013-09-09 | 743145-9691 | ND |
| 2013-12-10 | 762350-10420 | ND |
| 2014-10-31 | 137495.02 | ND |
| 2014-10-31 | 137495.04 | ND |
| 2014-10-31 | 137495.03 | ND |
| 2014-10-31 | 137495.01 | ND |
| 2015-08-07 | 146612.01 | ND |
| 2015-10-15 | 149110.01 | ND |
| 2015-10-15 | 149110.02 | ND |
| 2015-10-15 | 149110.03 | ND |
| 2015-10-15 | 149110.04 | ND |
| 2016-08-05 | 159131.01 | ND |
| 2016-10-07 | 161374.02 | ND |
| 2016-10-07 | 161374.03 | ND |
| 2016-10-07 | 161374.04 | ND |
| 2016-10-07 | 161374.05 | ND |