Portal, ND Radon Levels
Check local Portal radon levels and find certified testing and mitigation professionals to keep your home safe
Portal, ND Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Burke County, ND
Zip Code
58772
Located near the Canadian border in Burke County, Portal sits on glacial till deposits characteristic of north-central North Dakota's prairie region. Without available radon testing data for zip code 58772, residents should prioritize professional home testing. The area's combination of glacial soils and scattered rural housing, including older farmsteads with partial basements, creates conditions where radon levels can vary significantly between properties.
Portal, 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 Portal?
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Radon FAQ for Portal, ND
What EPA Radon Zone is Portal in?
Portal and the 58772 zip code are in Burke 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 Portal?
Radon mitigation in Portal 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 Portal?
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 |