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 King County Water District #20's water exceed recommended health guidelines, though they may be within legal limits set by the EPA.
Contaminants Detected
0.1 ppb
0.02 ppb
Bromodichloromethane
0.06 ppb
Chloroform
0.4 ppb
Chromium (hexavalent)*
0.02 ppb
Haloacetic acids (HAA5)
0.1 ppb
Haloacetic acids (HAA9)*
0.06 ppb
Radium, combined (-226 and -228)
0.05 ppb
Total trihalomethanes (TTHMs)
0.15 ppb
Trichloroacetic acid
0.1 ppb
0.14 ppm
Find a Filter
See which water filtration technologies are effective at reducing the contaminants detected in this utility's water supply.
Can reduce the levels of many common contaminants.
- Lower upfront cost
- Reduced maintenance
- Does not remove all contaminants
Can reduce the levels of many common contaminants.
- Most effective
- Higher upfront cost
- Requires more maintenance
- Wastes water
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 | |||
| Bromate* | ✓ | ✓ | ✓ |
| Bromochloroacetic acid | ✓ | ✓ | ✕ |
| Bromodichloromethane | ✓ | ✓ | ✕ |
| Chloroform | ✓ | ✓ | ✕ |
| Chromium (hexavalent)* | ✕ | ✓ | ✓ |
| Dichloroacetic acid | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA5) | ✓ | ✓ | ✕ |
| Haloacetic acids (HAA9)* | ✓ | ✓ | ✕ |
| Radium, combined (-226 and -228) | ✕ | ✓ | ✓ |
| Total trihalomethanes (TTHMs) | ✓ | ✓ | ✕ |
| Trichloroacetic acid | ✓ | ✓ | ✕ |
| Other Contaminants Detected | |||
| Chlorate* | ✕ | ✕ | ✕ |
| Manganese | ✕ | ✕ | ✓ |
| Monochloroacetic acid | ✓ | ✓ | ✕ |
| Nitrate | ✕ | ✓ | ✓ |
| 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.