Cardwell, MT Radon Levels
Check local Cardwell radon levels and find certified testing and mitigation professionals to keep your home safe
Cardwell, MT Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Jefferson County, MT
Zip Code
59721
Nestled in the Jefferson River valley of Jefferson County, Cardwell sits among Montana's mountainous terrain where granite bedrock and uranium-bearing soils create elevated radon potential. The area's housing includes historic ranch properties and newer mountain homes, many with basements. Testing data for zip code 59721 is currently limited, making radon testing particularly important given the high-risk geological setting.
Cardwell, MT Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Cardwell?
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Radon FAQ for Cardwell, MT
What EPA Radon Zone is Cardwell in?
Cardwell and the 59721 zip code are in Jefferson 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 Cardwell?
Radon mitigation in Cardwell 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 Cardwell?
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 |