Ennis, MT Radon Levels
Check local Ennis radon levels and find certified testing and mitigation professionals to keep your home safe
Ennis, MT Radon Facts
Nestled in the Madison Valley within Madison County, Ennis recorded a concerning average radon level of 9.0 pCi/L, more than double the EPA action threshold of 4.0 pCi/L. This mountain community in zip code 59729 sits among granite and metamorphic formations that frequently produce elevated radon concentrations. The area's mix of mountain homes, many with partial basements or crawl spaces, requires immediate radon testing and likely mitigation given these elevated readings.
Ennis, MT Radon Mitigation
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Ennis, MT Radon Levels
User-submitted radon test readings from homes in the Ennis area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 9 pCi/L | ennis, MT | 0-20 Years | No Basement/All Crawl Space |
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Radon FAQ for Ennis, MT
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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 |