Clark, CO Radon Levels
Check local Clark radon levels and find certified testing and mitigation professionals to keep your home safe
Clark, CO Radon Facts
High in Colorado's Routt County mountains, Clark has measured an average radon level of 4.0 pCi/L, right at the EPA's action threshold. This 80428 zip code reading reflects the area's EPA Zone 2 status and the complex geology of the Colorado Rockies. While this level meets the EPA guideline, homeowners should still consider testing, as mountain communities can see significant variation in radon levels based on local rock formations and seasonal changes.
Based on 1 user-submitted radon test for homes in Clark, CO. The EPA recommends taking action at or above 4.0 pCi/L.
Clark, CO Radon Mitigation
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Clark, CO Radon Levels
User-submitted radon test readings from homes in the Clark area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | Clark, CO | 21-50 Years | Full Basement |
Have a radon test result for Clark? Submit your reading to help other homeowners.
Radon Readings Near Clark, CO
Compare radon levels in Clark with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Steamboat Springs | 6.5 mi | 6.00 pCi/L | 2 |
| Craig | 36.4 mi | 16.00 pCi/L | 1 |
Routt County Radon Profile
EPA mapping assigns Routt County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 3 cities in Routt County average 5.33 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Routt County home regardless of zone or a neighbor's results.