Columbia Falls, MT Radon Levels

Q: What is the average radon level in Columbia Falls, MT?

Based on 3 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Columbia Falls in?

Columbia Falls is in Flathead County, EPA Zone 1.

Q: How much does radon mitigation cost in Columbia Falls?

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

Check local Columbia Falls radon levels and find certified testing and mitigation professionals to keep your home safe

Columbia Falls, MT Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Flathead County, MT

Zip Code 59912

Avg. User Level 6.00 pCi/L

User Tests 3

Columbia Falls in Flathead County records an average radon level of 6.0 pCi/L, exceeding the EPA action threshold and reflecting Montana's elevated radon potential. The Flathead Valley's glacial deposits over uranium-bearing bedrock create conditions highly favorable for radon production and accumulation. Residents should prioritize radon mitigation systems, particularly in homes with basements or crawl spaces that can trap radon gas.

6.00

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Columbia Falls, MT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Columbia Falls, MT Radon Mitigation

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Columbia Falls, MT Radon Levels

User-submitted radon test readings from homes in the Columbia Falls area.

Radon Level	City	Home Age	Foundation
6 pCi/L	Columbia Falls, MT	51-99 Years	No Basement/All Crawl Space

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Radon FAQ for Columbia Falls, MT

What is the average radon level in Columbia Falls, MT?

Based on 3 user-submitted tests, the average radon level in Columbia Falls is 6.00 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 Columbia Falls in?

Columbia Falls and the 59912 zip code are in Flathead 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 Columbia Falls?

Radon mitigation in Columbia Falls 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 Columbia Falls?

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

Columbia Falls, MT Radon Levels

Check local Columbia Falls radon levels and find certified testing and mitigation professionals to keep your home safe

Columbia Falls, MT Radon Facts

Columbia Falls, MT Radon Mitigation

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Columbia Falls, MT Radon Levels

Radon FAQ for Columbia Falls, MT

Most Active Radon Markets in Montana

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