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 11 contaminant(s) detected in Honolulu-Windward-Pearl Harbor'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: 0.00395 ppb
No Legal Limit
5.6x
EWG's Health Guideline:
0.0007 ppb
0.0007 ppb
This Utility: 0.136 ppb
No Legal Limit
6.8x
EWG's Health Guideline:
0.02 ppb
0.02 ppb
Chromium (hexavalent)*
Potential Effect: cancer
This Utility: 1.78 ppb
No Legal Limit
89x
EWG's Health Guideline:
0.02 ppb
0.02 ppb
Haloacetic acids (HAA5)
Potential Effect: cancer
This Utility: 0.242 ppb
Legal Limit: 60 ppb
2.4x
EWG's Health Guideline:
0.1 ppb
0.1 ppb
Haloacetic acids (HAA9)*
Potential Effect: cancer
This Utility: 0.918 ppb
No Legal Limit
15x
EWG's Health Guideline:
0.06 ppb
0.06 ppb
This Utility: 0.41 ppm
Legal Limit: 10 ppb
2.9x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
This Utility: 0.414 ppm
Legal Limit: 10 ppb
3x
EWG's Health Guideline:
0.14 ppb
0.14 ppb
This Utility: 0.034 ppt
Legal Limit: 10 ppb
34x
EWG's Health Guideline:
0.001 ppb
0.001 ppb
Total trihalomethanes (TTHMs)
Potential Effect: cancer
This Utility: 3.76 ppb
Legal Limit: 80 ppb
25x
EWG's Health Guideline:
0.15 ppb
0.15 ppb
This Utility: 0.0137 ppb
Legal Limit: 2 ppb
EWG's Health Guideline:
0.03 ppb
0.03 ppb
This Utility: 1.63 ppb
Legal Limit: 100 ppb
Dibromochloromethane
Potential Effect: cancer
This Utility: 0.0658 ppb
No Legal Limit
EWG's Health Guideline:
0.1 ppb
0.1 ppb
This Utility: 0.000546 ppb
Legal Limit: 0.2 ppb
EWG's Health Guideline:
0.006 ppb
0.006 ppb
Radium, combined (-226 and -228)
Potential Effect: cancer
This Utility: 0.03 ppb
Legal Limit: 5 ppb
EWG's Health Guideline:
0.05 ppb
0.05 ppb
Trichloroacetic acid
Potential Effect: cancer
This Utility: 0.0661 ppb
No Legal Limit
EWG's Health Guideline:
0.1 ppb
0.1 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 8 contaminants exceeding guidelines (+7 others)
Can reduce the levels of many common contaminants.
Pros
- Lower upfront cost
- Reduced maintenance
Cons
- Does not remove all contaminants
Reverse Osmosis
Filters 11 contaminants exceeding guidelines (+12 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* | ✓ | ✓ | ✕ |
| Bromochloroacetic acid | ✓ | ✓ | ✕ |
| Bromoform | ✓ | ✓ | ✕ |
| Chromium (hexavalent)* | ✕ | ✓ | ✓ |
| Dibromoacetic acid | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA5) | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA9)* | ✓ | ✓ | ✕ |
| Nitrate | ✕ | ✓ | ✓ |
| Nitrate and nitrite | ✕ | ✓ | ✓ |
| Perfluorohexane sulfonate (PFHXS) | ✓ | ✓ | ✕ |
| Total trihalomethanes (TTHMs) | ✓ | ✓ | ✕ |
| Other Contaminants Detected | |||
| 1-Butanol | ✓ | ✓ | ✕ |
| Barium | ✕ | ✓ | ✓ |
| Chlorate* | ✕ | ✕ | ✕ |
| Chlordane | ✓ | ✓ | ✕ |
| Chromium (total) | ✕ | ✓ | ✓ |
| Dibromochloromethane | ✓ | ✓ | ✕ |
| Dichloroacetic acid | ✓ | ✓ | ✕ |
| Dieldrin | ✓ | ✓ | ✕ |
| Fluoride | ✕ | ✓ | ✕ |
| Heptachlor epoxide | ✓ | ✓ | ✕ |
| Manganese | ✕ | ✕ | ✓ |
| Radium, combined (-226 and -228) | ✕ | ✓ | ✓ |
| Strontium* | ✕ | ✓ | ✓ |
| Trichloroacetic acid | ✓ | ✓ | ✕ |
| 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.