Coleharbor, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Coleharbor in?

Coleharbor is in McLean County, EPA Zone 1.

Q: How much does radon mitigation cost in Coleharbor?

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

This small community in McLean County sits along the shores of Lake Sakakawea, where sedimentary bedrock and glacial lake deposits characterize the local geology. Radon testing data for the 58531 zip code area is currently limited, making individual property assessment crucial for residents. The community's mix of older homes and seasonal lake properties means radon levels can vary depending on construction methods and foundation types.

Coleharbor, ND Radon Mitigation

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

Coleharbor, ND Radon Testing

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

Coleharbor Radon Facts

Key details about the radon risk profile for Coleharbor and the 58531 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McLean County, ND

Zip Code

58531

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Coleharbor and the 58531 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 Coleharbor, ND

What EPA Radon Zone is Coleharbor in?

Coleharbor and the 58531 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 Coleharbor?

Radon mitigation in Coleharbor 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 Coleharbor?

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