Overview
Legal does not necessarily equal safe.
- Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
- Legal limits for contaminants in tap water have not been updated in almost 20 years.
- The best way to ensure clean tap water is to keep pollution out of source water in the first place.
AquaPura's analysis shows 8 contaminant(s) detected in Town of Hempstead Water Department's water exceed recommended health guidelines, though they may be within legal limits set by the EPA.
Contaminants Detected
Chromium (hexavalent)*
Potential Effect: cancer
This Utility: 0.289 ppb
No Legal Limit
14x
EWG's Health Guideline:
0.02 ppb
0.02 ppb
This Utility: 2.98 ppm
Legal Limit: 10 ppb
21x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
This Utility: 2.95 ppm
Legal Limit: 10 ppb
21x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
Radium, combined (-226 and -228)
Potential Effect: cancer
This Utility: 0.2 ppb
Legal Limit: 5 ppb
4x
EWG's Health Guideline:
0.05 ppb
0.05 ppb
Tetrachloroethylene (perchloroethylene)
Potential Effect: cancer
This Utility: 0.177 ppb
Legal Limit: 5 ppb
3x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
Total trihalomethanes (TTHMs)
Potential Effect: cancer
This Utility: 0.443 ppb
Legal Limit: 80 ppb
3x
EWG's Health Guideline:
0.15 ppb
0.15 ppb
This Utility: 0.0891 ppb
Legal Limit: 7 ppb
1,2,3-Trichloropropane*
Potential Effect: cancer
This Utility: 0.000223 ppb
No Legal Limit
EWG's Health Guideline:
0.0007 ppb
0.0007 ppb
Bromodichloromethane
Potential Effect: cancer
This Utility: 0.0798 ppb
No Legal Limit
EWG's Health Guideline:
0.06 ppb
0.06 ppb
This Utility: 0.072 ppb
No Legal Limit
Chloroform
Potential Effect: cancer
This Utility: 0.16 ppb
No Legal Limit
EWG's Health Guideline:
0.4 ppb
0.4 ppb
Dibromochloromethane
Potential Effect: cancer
This Utility: 0.163 ppb
No Legal Limit
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Haloacetic acids (HAA9)*
Potential Effect: cancer
This Utility: 0.0367 ppb
No Legal Limit
EWG's Health Guideline:
0.06 ppb
0.06 ppb
This Utility: 0.089 ppt
Legal Limit: 4 ppt
EWG's Health Guideline:
0.3 ppt
0.3 ppt
Perfluorooctanoic acid (PFOA)
Potential Effect: cancer
This Utility: 0.089 ppt
Legal Limit: 4 ppt
EWG's Health Guideline:
0.09 ppt
0.09 ppt
This Utility: 0.0621 ppb
Legal Limit: 70 ppb
Find a Filter
See which water filtration technologies are effective at reducing the contaminants detected in this utility's water supply.
Carbon Filters
Filters 2 contaminants exceeding guidelines (+13 others)
Can reduce the levels of many common contaminants.
Pros
- Lower upfront cost
- Reduced maintenance
Cons
- Does not remove all contaminants
Reverse Osmosis
Filters 7 contaminants exceeding guidelines (+18 others)
Can reduce the levels of many common contaminants.
Pros
- Most effective
Cons
- Higher upfront cost
- Requires more maintenance
- Wastes water
Other Considerations
Ion Exchange
PROS: Softens hard water, Reduces some contaminants
CONS: Doesn't remove all contaminants
Whole-House Filters
PROS: Useful for reducing radiologicals and TCE
CONS: Expensive to install and maintain, Risk of bacterial contamination
Explore filter options for each contaminant. See which technologies are effective at reducing specific contaminants.
| Contaminant | Activated Carbon | Reverse Osmosis | Ion Exchange |
|---|---|---|---|
| Contaminants Above Health Guidelines | |||
| 1,4-Dioxane | ✕ | ✓ | ✕ |
| Chromium (hexavalent)* | ✕ | ✓ | ✓ |
| Nitrate | ✕ | ✓ | ✓ |
| Nitrate and nitrite | ✕ | ✓ | ✓ |
| Radium, combined (-226 and -228) | ✕ | ✓ | ✓ |
| Tetrachloroethylene (perchloroethylene) | ✓ | ✓ | ✕ |
| Total trihalomethanes (TTHMs) | ✓ | ✓ | ✕ |
| Other Contaminants Detected | |||
| 1,1-Dichloroethane | ✓ | ✓ | ✕ |
| 1,1-Dichloroethylene | ✓ | ✓ | ✕ |
| 1,2,3-Trichloropropane* | ✓ | ✓ | ✕ |
| Barium | ✕ | ✓ | ✓ |
| Bromochloromethane | ✓ | ✓ | ✕ |
| Bromodichloromethane | ✓ | ✓ | ✕ |
| Bromoform | ✓ | ✓ | ✕ |
| Chlorate* | ✕ | ✕ | ✕ |
| Chlorodifluoromethane | ✕ | ✕ | ✕ |
| Chloroform | ✓ | ✓ | ✕ |
| Cobalt | ✕ | ✓ | ✓ |
| Dibromochloromethane | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA9)* | ✓ | ✓ | ✕ |
| Manganese | ✕ | ✕ | ✓ |
| Nitrite | ✕ | ✓ | ✓ |
| Perchlorate* | ✕ | ✓ | ✓ |
| Perfluorooctane sulfonate (PFOS) | ✓ | ✓ | ✕ |
| Perfluorooctanoic acid (PFOA) | ✓ | ✓ | ✕ |
| Strontium* | ✕ | ✓ | ✓ |
| Trichloroethylene | ✓ | ✓ | ✕ |
| Vanadium* | ✕ | ✕ | ✓ |
| cis-1,2-Dichloroethylene | ✓ | ✓ | ✕ |
Protect your family's health.
Don't wait for your utility to improve. Get a free water analysis from AquaPura and find the right filtration system for your home.