Potomac, MD Radon Mitigation and Testing
This affluent Montgomery County community averages 9.0 pCi/L in radon testing - significantly exceeding EPA action levels and requiring immediate attention. Located on Piedmont metamorphic bedrock with granite intrusions, Potomac's geology creates ideal conditions for radon accumulation in zip code 20854. With readings ranging from 4.0 to 20.0 pCi/L, professional mitigation is strongly recommended for area homes.
Based on 6 user-submitted radon tests for homes in Potomac, MD. The EPA recommends taking action at or above 4.0 pCi/L.
Potomac, MD Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Potomac, MD Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Potomac, Maryland Radon Levels
User-submitted radon test readings from homes in the Potomac area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 20 pCi/L | Potomac, MD | 21-50 Years | Partial Basement | Sep 2024 |
| 6 pCi/L | Potomac, MD | 0-20 Years | Full Basement | Sep 2021 |
| 15 pCi/L | Potomac, MD | 21-50 Years | Full Basement | Jul 2019 |
| 5 pCi/L | Potomac, MD | — | — | May 2019 |
| 4 pCi/L | Potomac, MD | 21-50 Years | Full Basement | Sep 2018 |
Have a radon test result for Potomac? Submit your reading to help other homeowners.
Potomac Radon Facts
Key details about the radon risk profile for Potomac and the 20854 zip code area.
Potomac and the 20854 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 Potomac, 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 |