Richardton, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Richardton in?

Richardton is in Stark County, EPA Zone 1.

Q: How much does radon mitigation cost in Richardton?

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

Stark County

EPA Zone 1

Located in Stark County in western North Dakota, Richardton sits within a high-risk radon zone where Fort Union Formation sediments create significant radon potential. Limited testing data for the 58652 area makes individual home testing crucial for residents seeking to understand their indoor air quality. With North Dakota's continental climate requiring homes to remain tightly sealed for much of the year, radon accumulation can become particularly problematic without proper mitigation measures.

Richardton, ND Radon Mitigation

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

Richardton, ND Radon Testing

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

Richardton Radon Facts

Key details about the radon risk profile for Richardton and the 58652 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Stark County, ND

Zip Code

58652

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Richardton and the 58652 zip code are located in Stark 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 Richardton, ND

What EPA Radon Zone is Richardton in?

Richardton and the 58652 zip code are in Stark 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 Richardton?

Radon mitigation in Richardton 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 Richardton?

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