Cannon Ball, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Cannon Ball in?

Cannon Ball is in Sioux County, EPA Zone 1.

Q: How much does radon mitigation cost in Cannon Ball?

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

Sioux County

EPA Zone 1

Situated in Sioux County along the Missouri River in south-central North Dakota, Cannon Ball sits within the state's high radon potential zone. The underlying Pierre Shale and glacial till deposits create favorable conditions for radon gas production and migration. With limited testing data available for zip code 58528, residents should prioritize professional radon testing, especially given the EPA Zone 1 classification for this rural community.

Cannon Ball, ND Radon Mitigation

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

Cannon Ball, ND Radon Testing

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

Cannon Ball Radon Facts

Key details about the radon risk profile for Cannon Ball and the 58528 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Sioux County, ND

Zip Code

58528

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Cannon Ball and the 58528 zip code are located in Sioux 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 Cannon Ball, ND

What EPA Radon Zone is Cannon Ball in?

Cannon Ball and the 58528 zip code are in Sioux 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 Cannon Ball?

Radon mitigation in Cannon Ball 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 Cannon Ball?

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