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Kathryn, ND Radon Levels

Check local Kathryn radon levels and find certified testing and mitigation professionals to keep your home safe


Kathryn, ND Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Barnes County, ND
Zip Code 58049

This small Barnes County community in southeastern North Dakota sits within the EPA's highest-risk Zone 1, where radon levels frequently exceed federal action thresholds. The area's glacial till soils overlaying Pierre Shale bedrock create ideal conditions for radon gas migration into homes. With limited testing data currently available for Kathryn's zip code 58049, local homeowners are strongly encouraged to conduct professional radon testing, particularly in homes with basements common to North Dakota's harsh climate.

Kathryn, ND Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon FAQ for Kathryn, ND

What EPA Radon Zone is Kathryn in?
Kathryn and the 58049 zip code are in Barnes 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 Kathryn?
Radon mitigation in Kathryn 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 Kathryn?
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.

CityAvg User Radon LevelSubmissions
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