Charlotte Hall, MD Radon Mitigation and Testing

Q: What EPA Radon Zone is Charlotte Hall in?

Charlotte Hall is in Charles County, EPA Zone 2.

Q: How much does radon mitigation cost in Charlotte Hall?

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

Charles County

EPA Zone 2

Positioned in Charles County within the Lexington Park Metro area of southern Maryland, Charlotte Hall sits atop Coastal Plain sediments that generally produce lower radon levels than other geological regions. However, localized variations in soil composition and housing construction can still create pockets of elevated indoor radon concentrations. Although comprehensive testing data for the 20622 zip code is currently limited, Maryland homeowners are encouraged to test regardless of their area's general radon potential.

Charlotte Hall, MD Radon Mitigation

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

Charlotte Hall, MD Radon Testing

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

Charlotte Hall Radon Facts

Key details about the radon risk profile for Charlotte Hall and the 20622 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Charles County, MD

Zip Code

20622

Predicted Screening Level

2–4 pCi/L (Zone 2)

Charlotte Hall and the 20622 zip code are located in Charles County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Charlotte Hall, MD

What EPA Radon Zone is Charlotte Hall in?

Charlotte Hall and the 20622 zip code are in Charles 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 Charlotte Hall?

Radon mitigation in Charlotte Hall 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 Charlotte Hall?

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