Fort Benton, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Fort Benton in?

Fort Benton is in Chouteau County, EPA Zone 1.

Q: How much does radon mitigation cost in Fort Benton?

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

Chouteau County

EPA Zone 1

Perched along the Missouri River in Chouteau County, Fort Benton sits atop sedimentary rock formations including the Bearpaw Shale that can contribute to radon gas production. This historic community features both preserved frontier-era buildings and modern construction, with housing that includes basements and slab foundations depending on the era of construction. Given the EPA Zone 1 designation and limited testing data for zip code 59442, residents should conduct radon testing to understand their individual exposure risk.

Fort Benton, MT Radon Mitigation

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

Fort Benton, MT Radon Testing

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

Fort Benton Radon Facts

Key details about the radon risk profile for Fort Benton and the 59442 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Chouteau County, MT

Zip Code

59442

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Fort Benton and the 59442 zip code are located in Chouteau 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 Fort Benton, MT

What EPA Radon Zone is Fort Benton in?

Fort Benton and the 59442 zip code are in Chouteau 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 Fort Benton?

Radon mitigation in Fort Benton 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 Fort Benton?

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 Montana

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Butte	10.20 pCi/L	10
Missoula	6.25 pCi/L	8
Florence	11.67 pCi/L	3
Bozeman	10.33 pCi/L	3
Helena	8.67 pCi/L	3
Stevensville	7.67 pCi/L	3
Sidney	7.33 pCi/L	3
Billings	5.33 pCi/L	3
Miles City	3.33 pCi/L	3
Kalispell	7.50 pCi/L	2
Great Falls	4.50 pCi/L	2
Whitefish	4.00 pCi/L	2
Ennis	9.00 pCi/L	1
Livingston	No submissions	0