Great Mills, MD Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 3.00 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.

Avg: 3.00 pCi/L

St Mary's County

EPA Zone Unknown

1 user test

Great Mills is located in St Mary's County, Maryland. With 1 user-submitted readings averaging 3.00 pCi/L, levels are currently below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

3.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test 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

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Great Mills, MD Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Great Mills, Maryland Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Great Mills, MD	21-50 Years	Full Basement	Apr 2022

Have a radon test result for Great Mills? Submit your reading to help other homeowners.

Great Mills Radon Facts

Key details about the radon risk profile for Great Mills and the 20634 zip code area.

EPA Radon Zone

Unknown

County

St Mary's County, MD

Zip Code

20634

Predicted Screening Level

Unknown

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Great Mills and the 20634 zip code are located in St Mary's County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Great Mills, MD

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

Based on 1 user-submitted test, the average radon level in Great Mills is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

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 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