Riverdale, ND Radon Levels

Q: What EPA Radon Zone is Riverdale in?

Riverdale is in McLean County, EPA Zone 1.

Q: How much does radon mitigation cost in Riverdale?

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

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

Riverdale, ND Radon Facts

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

County McLean County, ND

Zip Code 58565

Positioned in McLean County along the Missouri River, Riverdale sits in an area where underlying Pierre Shale and glacial deposits can contribute to elevated radon potential common throughout central North Dakota. The community features primarily ranch-style homes and mobile homes, many with partial basements or crawl spaces typical of rural Prairie construction. With testing data for zip code 58565 currently limited, homeowners should consider professional radon testing, particularly given the geological conditions prevalent in this region.

Riverdale, 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 Riverdale, ND

What EPA Radon Zone is Riverdale in?

Riverdale and the 58565 zip code are in McLean 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 Riverdale?

Radon mitigation in Riverdale 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 Riverdale?

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