Arthur, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Arthur in?

Arthur is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in Arthur?

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

Part of the Fargo Metro area, this Cass County community in zip code 58006 sits within the Red River Valley where glacial lake deposits create variable radon conditions. Arthur's housing includes both rural properties and newer residential development, typically built with basement foundations standard for North Dakota's harsh winters. Since radon testing data for this small town is limited, residents should consider testing given the variable geological conditions and North Dakota's generally elevated radon potential.

Arthur, ND Radon Mitigation

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

Arthur, ND Radon Testing

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

Arthur Radon Facts

Key details about the radon risk profile for Arthur and the 58006 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cass County, ND

Zip Code

58006

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Arthur and the 58006 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 Arthur, ND

What EPA Radon Zone is Arthur in?

Arthur and the 58006 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 Arthur?

Radon mitigation in Arthur 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 Arthur?

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