1,1-Dichloroethane
Waltham Water Department (MWRA)
NOTE: Waltham Water Department (MWRA) purchases water from Massachusetts Water Resources Authority (MWRA) which is required to test for 1,1-dichloroethane. Sample information shown below was taken by Massachusetts Water Resources Authority (MWRA).
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 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 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: Waltham Water Department (MWRA) purchases water from Massachusetts Water Resources Authority (MWRA) which is required to test for 1,1-dichloroethane. Sample information shown below was taken by Massachusetts Water Resources Authority (MWRA).
| Date | Result |
|---|---|
| 2014-10-06 | ND |
| 2014-10-07 | ND |
| 2015-10-20 | ND |
| 2015-10-20 | ND |
| 2016-10-18 | ND |
| 2016-10-18 | ND |
| 2017-10-17 | ND |
| 2017-10-17 | ND |
| 2018-10-16 | ND |
| 2018-10-16 | ND |
| 2019-10-15 | ND |
| 2019-10-15 | ND |