1,1-Dichloroethane
Deforest Waterworks
1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.
17
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 |
|---|---|---|---|---|
| 2018 | 0.370 ppb | 1 | 1 | 0.370 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.445 ppb | 2 | 2 | 0.330 ppb - 0.560 ppb |
| 2022 | 0.150 ppb | 2 | 1 | ND - 0.300 ppb |
| 2023 | 0.168 ppb | 12 | 5 | ND - 0.560 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-08-29 | 404007001 | 0.370 ppb |
| 2021-04-13 | 1248611 | 0.330 ppb |
| 2021-04-13 | 1248610 | 0.560 ppb |
| 2022-07-26 | 1326226 | ND |
| 2022-08-23 | 1331556 | 0.300 ppb |
| 2023-03-21 | 669283001 | ND |
| 2023-03-21 | 669282001 | 0.400 ppb |
| 2023-06-08 | 682743001 | 0.310 ppb |
| 2023-06-08 | 682745001 | ND |
| 2023-07-25 | 691015001 | ND |
| 2023-07-25 | 691015002 | ND |
| 2023-09-07 | 698953003 | 0.340 ppb |
| 2023-09-07 | 698953001 | 0.400 ppb |
| 2023-09-19 | 701208001 | ND |
| 2023-09-19 | 701205001 | ND |
| 2023-12-12 | 714406001 | ND |
| 2023-12-12 | 714406002 | 0.560 ppb |