Great Mills, MD Radon Levels

Q: What is the average radon level in Great Mills, MD?

Based on 2 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Great Mills in?

Great Mills is in St Mary's County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Great Mills?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Great Mills radon levels and find certified testing and mitigation professionals to keep your home safe

Great Mills, MD Radon Facts

EPA Radon Zone Unknown Unknown

County St Mary's County, MD

Zip Code 20634

Avg. User Level 5.00 pCi/L

User Tests 2

Situated in St. Mary's County within the Lexington Park Metro area, Great Mills shows radon levels averaging 3.0 pCi/L based on limited testing data. This reading falls within the EPA's recommended range below 4.0 pCi/L, though additional testing would provide a more comprehensive picture for the community. Homeowners in zip code 20634 should still consider radon testing, particularly given the area's proximity to the Chesapeake Bay's varying geological formations.

5.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Great Mills, MD. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Great Mills, MD Radon Mitigation

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Great Mills, MD Radon Levels

User-submitted radon test readings from homes in the Great Mills area.

Radon Level	City	Home Age	Foundation
7 pCi/L	Great Mills, MD	21-50 Years	Partial Basement
3 pCi/L	Great Mills, MD	21-50 Years	Full Basement

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Radon FAQ for Great Mills, MD

What is the average radon level in Great Mills, MD?

Based on 2 user-submitted tests, the average radon level in Great Mills is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Great Mills in?

Great Mills and the 20634 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 Great Mills?

Radon mitigation in Great Mills 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 Great Mills?

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

Great Mills, MD Radon Levels

Check local Great Mills radon levels and find certified testing and mitigation professionals to keep your home safe

Great Mills, MD Radon Facts

Great Mills, MD Radon Mitigation

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Great Mills, MD Radon Levels

Radon FAQ for Great Mills, MD

Most Active Radon Markets in Maryland

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