Callaway, MD Radon Levels
Check local Callaway radon levels and find certified testing and mitigation professionals to keep your home safe
Callaway, MD Radon Facts
EPA Radon Zone
Unknown
Unknown
County
St Mary's County, MD
Zip Code
20620
Situated in St Mary's County within the Lexington Park Metro area, Callaway (20620) sits on Maryland's Western Shore with coastal plain geology that typically generates lower radon concentrations. The area's sandy soils and predominantly newer construction often result in minimal radon accumulation. Since comprehensive local testing data isn't available, residents should conduct baseline testing to confirm radon levels in their individual homes.
Callaway, 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 Callaway, MD
What EPA Radon Zone is Callaway in?
Callaway and the 20620 zip code are in St Mary's County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.
How much does radon mitigation cost in Callaway?
Radon mitigation in Callaway 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 Callaway?
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 |
| Frostburg | 8.67 pCi/L | 3 |