Portland, ND Radon Levels
Check local Portland radon levels and find certified testing and mitigation professionals to keep your home safe
Portland, ND Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Traill County, ND
Zip Code
58274
Positioned in Traill County along North Dakota's eastern border, Portland occupies glacial lake plain deposits that typically show lower radon potential. However, with limited testing data available for zip code 58274, individual home assessment remains important. The community's agricultural setting and varied foundation types mean that radon levels can still vary significantly between properties.
Portland, ND Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Portland?
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1-800-299-3578
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Radon FAQ for Portland, ND
What EPA Radon Zone is Portland in?
Portland and the 58274 zip code are in Traill County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Portland?
Radon mitigation in Portland typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Portland?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
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 |