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Crownsville, MD Radon Levels

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


Crownsville, MD Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Anne Arundel County, MD
Zip Code 21032
Avg. User Level 9.00 pCi/L
User Tests 1

Crownsville in Anne Arundel County shows elevated radon levels, with a reading of 9.0 pCi/L that exceeds the EPA action threshold and requires immediate attention. This Baltimore metropolitan area community sits atop Coastal Plain sediments where radon can accumulate in basement foundations common throughout central Maryland. Homeowners in zip code 21032 should prioritize radon testing and consider professional mitigation systems to reduce exposure levels.

9.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Crownsville, MD. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Crownsville, MD Radon Mitigation

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

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Crownsville, MD Radon Levels

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

Radon LevelCityHome AgeFoundation
9 pCi/L Crownsville, MD 21-50 Years Full Basement

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

Radon FAQ for Crownsville, MD

What is the average radon level in Crownsville, MD?
Based on 1 user-submitted test, the average radon level in Crownsville 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 Crownsville in?
Crownsville and the 21032 zip code are in Anne Arundel 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 Crownsville?
Radon mitigation in Crownsville 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 Crownsville?
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.

CityAvg User Radon LevelSubmissions
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