Derwood, MD Radon Mitigation and Testing
Located in Montgomery County within the Washington Metro area, Derwood sits in zip code 20855 where the underlying Piedmont geology contributes to elevated radon potential. Recent testing data shows an average radon level of 7.5 pCi/L, significantly exceeding the EPA action level of 4.0 pCi/L. Given the prevalence of split-level and colonial homes with finished basements throughout this established suburban community, homeowners should prioritize professional radon testing and mitigation if needed.
Based on 2 user-submitted radon tests for homes in Derwood, MD. The EPA recommends taking action at or above 4.0 pCi/L.
Derwood, MD Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Derwood, MD Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Derwood, Maryland Radon Levels
User-submitted radon test readings from homes in the Derwood area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 10 pCi/L | Derwood, MD | 21-50 Years | Full Basement | Nov 2021 |
| 5 pCi/L | Derwood, MD | 0-20 Years | Full Basement | Aug 2017 |
Have a radon test result for Derwood? Submit your reading to help other homeowners.
Derwood Radon Facts
Key details about the radon risk profile for Derwood and the 20855 zip code area.
Derwood and the 20855 zip code are located in Montgomery 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 Derwood, MD
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Most Active Radon Markets in Maryland
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Frederick | 8.29 pCi/L | 7 |
| Potomac | 9.00 pCi/L | 6 |
| Hagerstown | 8.67 pCi/L | 6 |
| Westminster | 14.50 pCi/L | 4 |
| Baltimore | 7.00 pCi/L | 4 |
| Annapolis | 4.25 pCi/L | 4 |
| Upper Marlboro | 15.00 pCi/L | 3 |
| Edgewater | 12.67 pCi/L | 3 |
| Bowie | 9.00 pCi/L | 3 |
| Clarksburg | 8.00 pCi/L | 3 |
| Gambrills | 6.00 pCi/L | 3 |
| Elkton | 5.33 pCi/L | 3 |
| Silver Spring | 4.33 pCi/L | 3 |
| Chesapeake Beach | 14.00 pCi/L | 2 |
| Cumberland | 9.00 pCi/L | 2 |
| Frostburg | 9.00 pCi/L | 2 |
| Owings | 5.50 pCi/L | 2 |
| Huntingtown | 4.50 pCi/L | 2 |
| Mc Henry | 20.00 pCi/L | 1 |
| Mount Airy | 20.00 pCi/L | 1 |