Town Of Hempstead Water Department
Hempstead (T), NY
NY2900000
Contaminants Exceeding Limits
The following contaminants have exceeded the guideline limits at least once in the past ten years.
- TR
1,2,3-Trichloropropane
1,2,3-Trichloropropane is a synthetic chemical used in solvents and pesticides. It can contaminate groundwater from industrial sites and agricultural areas. It is a known carcinogen.
- DI
1,4-Dioxane
1,4-Dioxane is a synthetic chemical used in manufacturing. It enters water through industrial discharge and is difficult to remove with standard treatment. It's a potential carcinogen.
Other Contaminants Detected
The following contaminants have been detected, but not exceeded the guideline limits in the past ten years.
1,1,1-Trichloroethane
392 detections
| Avg Result: | 0.493 ppb |
|---|---|
| Limit: | 200.000 ppb |
1,1,2-Trichloroethane
7 detections
| Avg Result: | 0.008 ppb |
|---|---|
| Limit: | 5.000 ppb |
1,1-Dichloroethane
11 detections
| Avg Result: | 0.097 ppb |
|---|---|
| Limit: | 50.000 ppb |
1,1-Dichloroethylene
574 detections
| Avg Result: | 0.939 ppb |
|---|---|
| Limit: | 7.000 ppb |
1,2-Dichloroethane
53 detections
| Avg Result: | 0.014 ppb |
|---|---|
| Limit: | 5.000 ppb |
1,2-Dichloropropane
13 detections
| Avg Result: | 0.003 ppb |
|---|---|
| Limit: | 5.000 ppb |
Contaminants tested
Contaminants that have been tested but not detected
Summary
- People Served
- 110K
- Groundwater
- Nassau County
- Data from 2014-2024
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