Mapleton, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Mapleton in?

Mapleton is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in Mapleton?

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

Located in Cass County within the Fargo Metro area, Mapleton sits in North Dakota's Zone 1 high radon potential region where glacial lake deposits create significant radon risk. Testing data for zip code 58059 is currently being collected, but the area's geological conditions strongly favor professional radon measurement. The Red River Valley's fine-grained glacial soils, combined with typical basement construction, create an environment where radon can readily accumulate to hazardous levels.

Mapleton, ND Radon Mitigation

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

Mapleton, ND Radon Testing

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

Mapleton Radon Facts

Key details about the radon risk profile for Mapleton and the 58059 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cass County, ND

Zip Code

58059

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mapleton and the 58059 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 Mapleton, ND

What EPA Radon Zone is Mapleton in?

Mapleton and the 58059 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 Mapleton?

Radon mitigation in Mapleton 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 Mapleton?

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