Lefor, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Lefor in?

Lefor is in Stark County, EPA Zone 1.

Q: How much does radon mitigation cost in Lefor?

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 within North Dakota's western oil region, Lefor sits over geological formations that can produce variable radon levels. Although testing submissions for this 58641 community remain sparse, the underlying Pierre Shale formation suggests homeowners should consider radon testing. Rural properties and newer construction in the area may have different radon entry patterns than traditional farmstead foundations.

Lefor, ND Radon Mitigation

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

Lefor, ND Radon Testing

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

Lefor Radon Facts

Key details about the radon risk profile for Lefor and the 58641 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Stark County, ND

Zip Code

58641

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Lefor and the 58641 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 Lefor, ND

What EPA Radon Zone is Lefor in?

Lefor and the 58641 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 Lefor?

Radon mitigation in Lefor 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 Lefor?

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