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 Suffolk County Water Authority's water exceed recommended health guidelines, though they may be within legal limits set by the EPA.
Contaminants Detected
1,2,3-Trichloropropane*
Potential Effect: cancer
This Utility: 0.0126 ppb
No Legal Limit
18x
EWG's Health Guideline:
0.0007 ppb
0.0007 ppb
Chromium (hexavalent)*
Potential Effect: cancer
This Utility: 0.414 ppb
No Legal Limit
21x
EWG's Health Guideline:
0.02 ppb
0.02 ppb
Haloacetic acids (HAA5)
Potential Effect: cancer
This Utility: 1.15 ppb
Legal Limit: 60 ppb
11x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Haloacetic acids (HAA9)*
Potential Effect: cancer
This Utility: 1.33 ppb
No Legal Limit
22x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
This Utility: 0.227 ppt
Legal Limit: 10 ppb
227x
EWG's Health Guideline:
0.001 ppb
0.001 ppb
This Utility: 0.024 ppt
Legal Limit: 10 ppb
4x
EWG's Health Guideline:
0.006 ppb
0.006 ppb
Perfluorooctanoic acid (PFOA)
Potential Effect: cancer
This Utility: 0.234 ppt
Legal Limit: 4 ppb
2.6x
EWG's Health Guideline:
0.09 ppb
0.09 ppb
Total trihalomethanes (TTHMs)
Potential Effect: cancer
This Utility: 8.3 ppb
Legal Limit: 80 ppb
55x
EWG's Health Guideline:
0.15 ppb
0.15 ppb
This Utility: 0.09 ppt
No Legal Limit
EWG's Health Guideline:
1 ppt
1 ppt
This Utility: 0.00778 ppb
No Legal Limit
This Utility: 0.049 ppt
No Legal Limit
EWG's Health Guideline:
2000 ppt
2000 ppt
This Utility: 0.14 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.057 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.747 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
This Utility: 0.2 ppt
Legal Limit: 4 ppt
EWG's Health Guideline:
0.3 ppt
0.3 ppt
This Utility: 0.935 ppt
No Legal Limit
EWG's Health Guideline:
1000 ppt
1000 ppt
Find a Filter
See which water filtration technologies are effective at reducing the contaminants detected in this utility's water supply.
Carbon Filters
Filters 7 contaminants exceeding guidelines (+8 others)
Can reduce the levels of many common contaminants.
Pros
- Lower upfront cost
- Reduced maintenance
Cons
- Does not remove all contaminants
Reverse Osmosis
Filters 8 contaminants exceeding guidelines (+13 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 | |||
| 1,2,3-Trichloropropane* | ✓ | ✓ | ✕ |
| Chromium (hexavalent)* | ✕ | ✓ | ✓ |
| Haloacetic acids (HAA5) | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA9)* | ✓ | ✓ | ✕ |
| Perfluorohexane sulfonate (PFHXS) | ✓ | ✓ | ✕ |
| Perfluorononanoic acid (PFNA) | ✓ | ✓ | ✕ |
| Perfluorooctanoic acid (PFOA) | ✓ | ✓ | ✕ |
| Total trihalomethanes (TTHMs) | ✓ | ✓ | ✕ |
| Other Contaminants Detected | |||
| 1,1-Dichloroethane | ✓ | ✓ | ✕ |
| 1,4-Dioxane | ✕ | ✓ | ✕ |
| 6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA) | ✓ | ✓ | ✕ |
| Chlorate* | ✕ | ✕ | ✕ |
| Chlorodifluoromethane | ✕ | ✕ | ✕ |
| Cobalt | ✕ | ✓ | ✓ |
| Germanium | ✕ | ✓ | ✕ |
| Manganese | ✕ | ✕ | ✓ |
| Molybdenum | ✕ | ✓ | ✓ |
| Perfluorobutane sulfonate (PFBS) | ✓ | ✓ | ✕ |
| Perfluorobutanoic Acid (PFBA) | ✓ | ✓ | ✕ |
| Perfluoroheptanoic acid (PFHPA) | ✓ | ✓ | ✕ |
| Perfluorohexanoic Acid (PFHxA) | ✓ | ✓ | ✕ |
| Perfluorooctane sulfonate (PFOS) | ✓ | ✓ | ✕ |
| Perfluoropentanoic Acid (PFPeA) | ✓ | ✓ | ✕ |
| Strontium* | ✕ | ✓ | ✓ |
| Vanadium* | ✕ | ✕ | ✓ |
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.