1,1-Dichloroethane
Altoona 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.
16
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 | N/A | 0 | 0 | N/A |
| 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 | 0.340 ppb | 1 | 1 | 0.340 ppb |
| 2019 | 0.350 ppb | 1 | 1 | 0.350 ppb |
| 2020 | 0.360 ppb | 1 | 1 | 0.360 ppb |
| 2021 | 0.404 ppb | 5 | 5 | 0.320 ppb - 0.470 ppb |
| 2022 | 0.275 ppb | 2 | 2 | 0.260 ppb - 0.290 ppb |
| 2023 | 0.277 ppb | 6 | 4 | ND - 0.450 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 |
|---|---|---|
| 2018-06-19 | 1062457 | 0.340 ppb |
| 2019-03-11 | 1108740 | 0.350 ppb |
| 2020-06-16 | 1193784 | 0.360 ppb |
| 2021-03-15 | 1243823 | 0.470 ppb |
| 2021-03-15 | 1243823 | 0.470 ppb |
| 2021-06-15 | 1259378 | 0.420 ppb |
| 2021-09-07 | 1275724 | 0.320 ppb |
| 2021-11-08 | 1288394 | 0.340 ppb |
| 2022-05-03 | 1311124 | 0.260 ppb |
| 2022-09-21 | 1338361 | 0.290 ppb |
| 2023-01-25 | CB00795-02 | ND |
| 2023-01-26 | CB00861-02 | ND |
| 2023-02-08 | CB01247-01 | 0.390 ppb |
| 2023-06-12 | CB06321-09 | 0.400 ppb |
| 2023-07-31 | CB08782-09 | 0.420 ppb |
| 2023-11-07 | CB13662-01 | 0.450 ppb |