Home hazard report for 99921 — Craig, AK
ZIP 99921 has no mapped public water system — homes here most likely use private wells. Prince of Wales-Hyder Census Area is in EPA radon no zone.
Well water is not tested by any agency — test it yourself.
EPA has not assigned this area a radon zone. Testing is the only way to know.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 9.5 miles away.
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Where ZIP 99921 is
Dashed: ZIP area · scroll or pinch to zoomDrinking water: probably a private well
No community water system’s service area covers the center of ZIP 99921, and no system lists it. In rural areas that usually means private wells. The EPA does not regulate private wells: owners should test once a year for coliform bacteria and nitrate, and every few years for arsenic, lead, uranium and other local concerns. Your county health department can recommend a certified lab.
Radon in Prince of Wales-Hyder Census Area
EPA radon no zone — not mapped. EPA has not assigned this area a radon zone. Testing is the only way to know.
Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →
Natural hazard risk
FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Very Low, with very high social vulnerability and relatively low community resilience.
FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.
Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Salt Chuck Mine Thorne Bay, Alaska · EPA ID AK0001897602 | Active (final NPL) | 9.5 mi |
EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions about 99921
Does ZIP 99921 have public water?
No community water system service area covers the center of ZIP 99921, and none lists it. Homes here most likely use private wells, which no agency tests — owners should test yearly for bacteria and nitrate, and every few years for arsenic, lead and other local concerns.
What natural hazards affect ZIP 99921?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Very Low; the highest-rated hazards are landslide (relatively high), winter weather (relatively high), earthquake (relatively low).
Are there Superfund sites near 99921?
The nearest active Superfund site is 9.5 miles away. Sites within 10 miles: Salt Chuck Mine (9.5 mi, Active (final NPL)).
Is radon a problem in Prince of Wales-Hyder Census Area?
Prince of Wales-Hyder Census Area is in EPA radon no zone (not mapped). EPA has not assigned this area a radon zone. Testing is the only way to know.