Big Timber, MT Radon Levels

Q: What is the average radon level in Big Timber, MT?

Based on 2 user-submitted tests, the average radon level is 8.50 pCi/L.

Q: What EPA Radon Zone is Big Timber in?

Big Timber is in Sweet Grass County, EPA Zone 2.

Q: How much does radon mitigation cost in Big Timber?

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

Check local Big Timber radon levels and find certified testing and mitigation professionals to keep your home safe

Big Timber, MT Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Sweet Grass County, MT

Zip Code 59011

Avg. User Level 8.50 pCi/L

User Tests 2

Situated in Sweet Grass County along the Yellowstone River valley, Big Timber has recorded an average radon level of 8.5 pCi/L based on recent testing. This reading significantly exceeds the EPA action level of 4.0 pCi/L, reflecting the area's complex geology of Tertiary volcanics over sedimentary bedrock. Homeowners in zip code 59011 should prioritize radon testing and mitigation, especially in homes with basements or crawl spaces.

8.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Big Timber, MT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Big Timber, MT Radon Mitigation

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Big Timber, MT Radon Levels

User-submitted radon test readings from homes in the Big Timber area.

Radon Level	City	Home Age	Foundation
8 pCi/L	Big Timber, MT	0-20 Years	No Basement/All Slab
9 pCi/L	Big Timber, MT	51-99 Years	Partial Basement

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Radon FAQ for Big Timber, MT

What is the average radon level in Big Timber, MT?

Based on 2 user-submitted tests, the average radon level in Big Timber is 8.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Big Timber in?

Big Timber and the 59011 zip code are in Sweet Grass 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 Big Timber?

Radon mitigation in Big Timber 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 Big Timber?

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 in Montana with the most user-submitted radon test data, ranked by number of submissions.

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

Big Timber, MT Radon Levels

Check local Big Timber radon levels and find certified testing and mitigation professionals to keep your home safe

Big Timber, MT Radon Facts

Big Timber, MT Radon Mitigation

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Big Timber, MT Radon Levels

Radon FAQ for Big Timber, MT

Most Active Radon Markets in Montana

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