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Elkridge, MD Radon Levels

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


Elkridge, MD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Howard County, MD
Zip Code 21075
Avg. User Level 7.00 pCi/L
User Tests 1

Current testing in Howard County shows Elkridge averaging 7.0 pCi/L, significantly above the EPA's 4.0 pCi/L action threshold requiring mitigation consideration. This Baltimore Metro community in EPA Zone 1 reflects Maryland's Piedmont geology where granite and gneiss bedrock support elevated radon accumulation. Homes in the 21075 area should be tested and mitigated when readings exceed EPA guidelines.

7.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Elkridge, MD Radon Mitigation

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

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Elkridge, MD Radon Levels

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

Radon LevelCityHome AgeFoundation
7 pCi/L Elkridge, MD 0-20 Years Full Basement

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

Radon FAQ for Elkridge, MD

What is the average radon level in Elkridge, MD?
Based on 1 user-submitted test, the average radon level in Elkridge is 7.00 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 Elkridge in?
Elkridge and the 21075 zip code are in Howard 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 Elkridge?
Radon mitigation in Elkridge 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 Elkridge?
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