Severn, MD Radon Levels
Check local Severn radon levels and find certified testing and mitigation professionals to keep your home safe
Severn, MD Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Anne Arundel County, MD
Zip Code
21144
Severn sits in Anne Arundel County within the Baltimore Metro area, positioned in Maryland's Coastal Plain region where geological conditions typically produce moderate radon levels. The 21144 area features suburban developments with a mix of basement and slab-on-grade homes built primarily since the 1960s. While specific local radon data remains limited, residents should test their homes given the variability in radon levels across different soil types and foundation configurations.
Severn, MD Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Severn, MD
What EPA Radon Zone is Severn in?
Severn and the 21144 zip code are in Anne Arundel County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Severn?
Radon mitigation in Severn typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Severn?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in Maryland
Cities in Maryland with the most user-submitted radon test data, ranked by number of submissions.
| 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 |