Bighorn, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Bighorn in?

Bighorn is in Treasure County, EPA Zone 2.

Q: How much does radon mitigation cost in Bighorn?

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

Treasure County

EPA Zone 2

Located in Treasure County along the Yellowstone River, Bighorn sits on Tertiary sediments over Fort Union Formation sandstone and shale. Radon testing data for the 59010 area is currently limited, but the layered sedimentary geology suggests moderate radon potential typical of EPA Zone 2. Local residents should test their properties, particularly ranch homes with basements or those built on elevated foundations over exposed bedrock.

Bighorn, MT Radon Mitigation

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

Bighorn, MT Radon Testing

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

Bighorn Radon Facts

Key details about the radon risk profile for Bighorn and the 59010 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Treasure County, MT

Zip Code

59010

Predicted Screening Level

2–4 pCi/L (Zone 2)

Bighorn and the 59010 zip code are located in Treasure County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Bighorn, MT

What EPA Radon Zone is Bighorn in?

Bighorn and the 59010 zip code are in Treasure County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Bighorn?

Radon mitigation in Bighorn 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 Bighorn?

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