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Efland, NC Radon Levels

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


Efland, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Orange County, NC
Zip Code 27243
Avg. User Level 5.00 pCi/L
User Tests 1

Part of Orange County in the Durham metropolitan area, Efland sits in North Carolina's Piedmont region where granite intrusions can elevate radon levels. Testing data shows an average reading of 5.0 pCi/L, which exceeds the EPA action level and suggests homeowners should consider mitigation. The community's mix of rural properties and newer suburban development in zip code 27243 presents varying radon risks based on construction methods.

5.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Efland, NC Radon Mitigation

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

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Efland, NC Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Efland, NC 21-50 Years No Basement/All Crawl Space

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

Radon Readings Near Efland, NC

Compare radon levels in Efland with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Hillsborough 5.5 mi 3.00 pCi/L 1
Chapel Hill 14.3 mi 3.00 pCi/L 1
Rougemont 19.0 mi 9.00 pCi/L 1
Gibsonville 21.3 mi 6.00 pCi/L 1
Yanceyville 22.5 mi 4.00 pCi/L 1
Stem 27.1 mi 3.00 pCi/L 1
Cary 30.5 mi 5.00 pCi/L 4
Apex 32.1 mi 3.50 pCi/L 2

Orange County Radon Profile

Orange County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. Homeowner-submitted tests from 3 cities in Orange County average 3.67 pCi/L across 3 tests — below the EPA's 4 pCi/L action level, though radon varies sharply from home to home. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Orange County.

Radon FAQ for Efland, NC

What is the average radon level in Efland, NC?
Based on 1 user-submitted test, the average radon level in Efland is 5.00 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 Efland in?
Efland and the 27243 zip code are in Orange County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Efland?
Radon mitigation in Efland 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 Efland?
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.