Leonard, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Leonard in?

Leonard is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in Leonard?

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

Cass County

EPA Zone 1

Positioned in Cass County within the Fargo metropolitan area, Leonard sits in the Red River Valley where glacial lake deposits over shale bedrock contribute to North Dakota's elevated radon potential. The community features newer residential developments alongside traditional prairie construction, with many homes built on full basements and slab foundations. With local testing data currently unavailable, residents in the 58052 area should prioritize radon testing given the region's geological characteristics.

Leonard, ND Radon Mitigation

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

Leonard, ND Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Leonard Radon Facts

Key details about the radon risk profile for Leonard and the 58052 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cass County, ND

Zip Code

58052

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Leonard and the 58052 zip code are located in Cass County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Leonard, ND

What EPA Radon Zone is Leonard in?

Leonard and the 58052 zip code are in Cass 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 Leonard?

Radon mitigation in Leonard 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 Leonard?

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 with the most user-submitted radon test data in the state.

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