Radon in ZIP code 99737
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ZIP 99737 crosses 2 county lines. Most of its land (76.2%) is in Southeast Fairbanks Census Area, Alaska. EPA’s radon zone for this area: Zone 2, moderate potential.
Predicted average indoor screening level from 2 to 4 pCi/L.
Predicted average indoor screening level below 2 pCi/L. Zone inherited from Valdez-Cordova Census Area.
What this means for homes in 99737
EPA built its zone map county by county in 1993, so every address in each part of 99737 shares its county’s prediction. The zone is a starting point, not a measurement of your house. In a Zone 2 area many homes are fine and many are not; only a test tells you which yours is.
Because 99737 crosses county lines, your county depends on your street. Your property tax bill or county assessor site shows which county you are in. Next: read how to test your home, then check the number with the level calculator.
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Nearby ZIP codes in Southeast Fairbanks Census Area
Alaska radon help
AK Department of Environmental Conservation Division of Air Quality (907-465-5100) can help with test kits, local data and credentialed professionals: dggs.alaska.gov/hazards/radon.html.
Frequently asked questions
What is the radon zone for ZIP code 99737?
ZIP 99737 spans 2 counties. The highest-potential zone among them is Zone 2 (moderate potential). Southeast Fairbanks Census Area: Zone 2 (76.2% of the ZIP's land); Copper River Census Area: Zone 3 (23.8% of the ZIP's land).
Should I test for radon in 99737?
Yes. EPA recommends testing every home regardless of zone, because radon varies from house to house. Fix the home if a confirmed result is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L.
Free checklist · PDF
Radon Test Checklist
A one-page, step-by-step checklist for running a home radon test right the first time, and what to do with the number.
- Short-term vs. long-term test: which to use
- Closed-house conditions and where to place the kit
- What 2, 4 and 8 pCi/L mean and when to fix
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