Richfield, NC Radon Levels

Q: What EPA Radon Zone is Richfield in?

Richfield is in Stanly County, EPA Zone 3.

Q: Why are radon readings shown from areas near Richfield?

No homeowner radon tests have been submitted for Richfield yet, so readings from the closest cities and the Stanly County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Richfield?

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

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

Richfield, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Stanly County, NC

Zip Code 28137

Found in Stanly County within the Charlotte Metro area, Richfield sits in North Carolina's Piedmont region where granite and metamorphic geology typically produces lower radon levels. Current testing data for the 28137 area is unavailable, emphasizing the importance of individual property evaluation. While regional geology suggests moderate radon potential, homes with basements or those built over fractured bedrock can still experience elevated levels requiring professional assessment.

6.00

pCi/L area average

Above EPA Action Level

Stanly County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Richfield itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Richfield, NC Radon Mitigation

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

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Radon Readings Near Richfield, NC

No homeowner tests have been submitted for Richfield yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Albemarle	8.0 mi	6.00 pCi/L	1
Concord	16.8 mi	4.00 pCi/L	1
Kannapolis	19.0 mi	7.00 pCi/L	1
Asheboro	30.6 mi	5.00 pCi/L	2
Mooresville	32.8 mi	4.00 pCi/L	4
Cornelius	33.2 mi	4.00 pCi/L	1
Huntersville	33.2 mi	3.50 pCi/L	2
Charlotte	35.1 mi	7.33 pCi/L	3

Stanly County Radon Profile

Local geology places Stanly County in EPA Radon Zone 3, where predicted indoor radon averages fall below 2 pCi/L — though no county is risk-free. Homeowner-submitted tests from 1 city in Stanly County average 6.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Stanly County to test, as levels can differ between neighboring homes.

Radon FAQ for Richfield, NC

What EPA Radon Zone is Richfield in?

Richfield and the 28137 zip code are in Stanly 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.

Why are radon readings shown from areas near Richfield?

No homeowner radon tests have been submitted for Richfield yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Stanly County average—are the best available indicator of local conditions until Richfield homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Richfield?

Radon mitigation in Richfield 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 Richfield?

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.