Potomac, MD Radon Levels

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

Based on 6 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Potomac in?

Potomac is in Montgomery County, EPA Zone 1.

Q: How much does radon mitigation cost in Potomac?

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

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

Potomac, MD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Montgomery County, MD

Zip Code 20854

Avg. User Level 9.00 pCi/L

User Tests 6

This affluent Montgomery County community averages 9.0 pCi/L in radon testing - significantly exceeding EPA action levels and requiring immediate attention. Located on Piedmont metamorphic bedrock with granite intrusions, Potomac's geology creates ideal conditions for radon accumulation in zip code 20854. With readings ranging from 4.0 to 20.0 pCi/L, professional mitigation is strongly recommended for area homes.

9.00

pCi/L average

Above EPA Action Level

Based on 6 user-submitted radon tests for homes in Potomac, MD. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Potomac, MD Radon Mitigation

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Potomac, MD Radon Levels

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

Radon Level	City	Home Age	Foundation
20 pCi/L	Potomac, MD	21-50 Years	Partial Basement
6 pCi/L	Potomac, MD	0-20 Years	Full Basement
15 pCi/L	Potomac, MD	21-50 Years	Full Basement
5 pCi/L	Potomac, MD	—	—
4 pCi/L	Potomac, MD	21-50 Years	Full Basement

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

Radon FAQ for Potomac, MD

What is the average radon level in Potomac, MD?

Based on 6 user-submitted tests, the average radon level in Potomac is 9.00 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 Potomac in?

Potomac and the 20854 zip code are in Montgomery County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Potomac?

Radon mitigation in Potomac 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 Potomac?

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
Clarksburg	8.00 pCi/L	3

Potomac, MD Radon Levels

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

Potomac, MD Radon Facts

Potomac, MD Radon Mitigation

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Potomac, MD Radon Levels

Radon FAQ for Potomac, MD

Most Active Radon Markets in Maryland

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