Underwood, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Underwood in?

Underwood is in McLean County, EPA Zone 1.

Q: How much does radon mitigation cost in Underwood?

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

McLean County

EPA Zone 1

Situated in central North Dakota's McLean County, Underwood sits on glacial till over sedimentary bedrock where uranium-bearing formations can contribute to elevated radon levels. Current testing data for the community is insufficient to determine specific local radon patterns. With North Dakota's EPA Zone 1 classification indicating high radon potential, homeowners in zip code 58576 should conduct regular radon testing.

Underwood, ND Radon Mitigation

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

Underwood, ND Radon Testing

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

Underwood Radon Facts

Key details about the radon risk profile for Underwood and the 58576 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McLean County, ND

Zip Code

58576

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Underwood and the 58576 zip code are located in McLean 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 Underwood, ND

What EPA Radon Zone is Underwood in?

Underwood and the 58576 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 Underwood?

Radon mitigation in Underwood 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 Underwood?

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