Longmont, CO Radon Mitigation and Testing
Positioned between Boulder and Fort Collins in Boulder County, Longmont demonstrates an average radon level of 8.0 pCi/L that substantially exceeds the EPA action threshold of 4.0 pCi/L. The city's location on Colorado's Front Range, with uranium-bearing granite and sedimentary deposits, creates prime conditions for elevated radon concentrations. With readings ranging from 4.0 to 20.0 pCi/L across zip codes 80501, 80503, and 80504, immediate radon testing and mitigation should be priorities for all residents.
Based on 4 user-submitted radon tests for homes in Longmont, CO. The EPA recommends taking action at or above 4.0 pCi/L.
Longmont, CO Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Longmont, CO Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Longmont, Colorado Radon Levels
User-submitted radon test readings from homes in the Longmont area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 4 pCi/L | Longmont, CO | 21-50 Years | — | Aug 2023 |
| 20 pCi/L | Longmont, CO | 0-20 Years | No Basement/All Crawl Space | Apr 2023 |
| 4 pCi/L | Longmont, CO | 0-20 Years | — | Dec 2020 |
Have a radon test result for Longmont? Submit your reading to help other homeowners.
Longmont Radon Facts
Key details about the radon risk profile for Longmont and the 80501 zip code area.
Longmont and the 80501 zip code are located in Boulder County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Longmont, CO
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Most Active Radon Markets in Colorado
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Fairplay | 12.00 pCi/L | 9 |
| Crested Butte | 8.56 pCi/L | 9 |
| Denver | 6.22 pCi/L | 9 |
| Montrose | 9.25 pCi/L | 8 |
| Gunnison | 7.38 pCi/L | 8 |
| Buena Vista | 12.57 pCi/L | 7 |
| Pueblo | 10.67 pCi/L | 6 |
| Grand Junction | 8.17 pCi/L | 6 |
| Bayfield | 6.00 pCi/L | 6 |
| Canon City | 10.80 pCi/L | 5 |
| Aurora | 7.40 pCi/L | 5 |
| Windsor | 7.00 pCi/L | 5 |
| Telluride | 6.80 pCi/L | 5 |
| Parker | 5.40 pCi/L | 5 |
| Salida | 15.50 pCi/L | 4 |
| Johnstown | 9.50 pCi/L | 4 |
| Granby | 9.00 pCi/L | 4 |
| Longmont | 8.00 pCi/L | 4 |
| Edwards | 6.75 pCi/L | 4 |
| Mancos | 6.00 pCi/L | 4 |