Deal Island, MD Radon Mitigation and Testing

Q: What EPA Radon Zone is Deal Island in?

Deal Island is in Somerset County, EPA Zone 2.

Q: How much does radon mitigation cost in Deal Island?

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

Somerset County

EPA Zone 2

Positioned in Somerset County along the Chesapeake Bay, Deal Island sits on coastal marsh sediments and alluvial deposits that typically produce moderate radon levels. Testing data for the 21821 zip code area is currently limited, making professional radon assessment important for waterfront properties. The EPA Zone 2 classification indicates moderate radon potential that can vary significantly based on specific geological conditions.

Deal Island, MD Radon Mitigation

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

Deal Island, MD Radon Testing

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

Deal Island Radon Facts

Key details about the radon risk profile for Deal Island and the 21821 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Somerset County, MD

Zip Code

21821

Predicted Screening Level

2–4 pCi/L (Zone 2)

Deal Island and the 21821 zip code are located in Somerset 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 Deal Island, MD

What EPA Radon Zone is Deal Island in?

Deal Island and the 21821 zip code are in Somerset 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 Deal Island?

Radon mitigation in Deal Island 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 Deal Island?

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