Grafton, ND Radon Levels
Check local Grafton radon levels and find certified testing and mitigation professionals to keep your home safe
Grafton, ND Radon Facts
Situated in Walsh County within EPA Zone 1, Grafton has recorded an average radon level of 7.67 pCi/L based on multiple tests, exceeding EPA recommended thresholds. The city sits atop glacial lake deposits and glacial till that create elevated radon potential across the Red River Valley region. Homes in zip code 58237 with full basements — common in this northern climate — provide enclosed spaces where radon can accumulate from the uranium-rich glacial soils.
Based on 3 user-submitted radon tests for homes in Grafton, ND. The EPA recommends taking action at or above 4.0 pCi/L.
Grafton, ND Radon Mitigation
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Grafton, ND Radon Levels
User-submitted radon test readings from homes in the Grafton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 9 pCi/L | Grafton, ND | 21-50 Years | Full Basement |
| 5 pCi/L | Grafton, ND | 100+ Years | Partial Basement |
Have a radon test result for Grafton? Submit your reading to help other homeowners.
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Most Active Radon Markets in North Dakota
Cities in North Dakota with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Grand Forks | 13.50 pCi/L | 8 |
| Grafton | 7.67 pCi/L | 3 |
| Dickinson | 6.00 pCi/L | 3 |
| Watford City | 5.50 pCi/L | 2 |
| Bismarck | No submissions | 0 |