Portal, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Portal in?

Portal is in Burke County, EPA Zone 1.

Q: How much does radon mitigation cost in Portal?

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

Burke County

EPA Zone 1

Located near the Canadian border in Burke County, Portal sits on glacial till deposits characteristic of north-central North Dakota's prairie region. Without available radon testing data for zip code 58772, residents should prioritize professional home testing. The area's combination of glacial soils and scattered rural housing, including older farmsteads with partial basements, creates conditions where radon levels can vary significantly between properties.

Portal, ND Radon Mitigation

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

Portal, ND Radon Testing

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

Portal Radon Facts

Key details about the radon risk profile for Portal and the 58772 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Burke County, ND

Zip Code

58772

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Portal and the 58772 zip code are located in Burke 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 Portal, ND

What EPA Radon Zone is Portal in?

Portal and the 58772 zip code are in Burke 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 Portal?

Radon mitigation in Portal 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 Portal?

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