Grenora, ND Radon Levels

Q: What EPA Radon Zone is Grenora in?

Grenora is in Divide County, EPA Zone 1.

Q: How much does radon mitigation cost in Grenora?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Grenora, ND Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Divide County, ND

Zip Code 58845

Located in Divide County near the Montana border, Grenora sits atop the Williston Basin's sedimentary formations where uranium-bearing shales can contribute to radon production. Testing data for this rural community in zip code 58845 remains limited, making individual home testing particularly important. Homeowners should conduct radon testing regardless of limited local data, especially given North Dakota's EPA Zone 1 designation for high radon potential.

Grenora, 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 Grenora, ND

What EPA Radon Zone is Grenora in?

Grenora and the 58845 zip code are in Divide 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 Grenora?

Radon mitigation in Grenora 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 Grenora?

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