Cornell, MI Radon Levels

Q: What EPA Radon Zone is Cornell in?

Cornell is in Delta County, EPA Zone 3.

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

No homeowner radon tests have been submitted for Cornell yet, so readings from the closest cities and the Delta 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 Cornell?

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

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

Cornell, MI Radon Facts

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

County Delta County, MI

Zip Code 49818

Located in Michigan's Upper Peninsula within Delta County, Cornell sits on glacial deposits over Precambrian bedrock that can produce variable radon conditions. With comprehensive testing data for the 49818 area currently sparse, homeowners should prioritize radon testing to assess their individual risk in this unique geological setting.

5.40

pCi/L area average

Above EPA Action Level

Delta County average: 5.40 pCi/L, based on 5 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Cornell 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+

Cornell, MI 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 Cornell, MI

No homeowner tests have been submitted for Cornell 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
Gladstone	5.6 mi	5.25 pCi/L	4
Escanaba	11.9 mi	6.00 pCi/L	1
Vulcan	30.3 mi	3.00 pCi/L	1
Gwinn	30.9 mi	9.00 pCi/L	1
Norway	33.9 mi	6.00 pCi/L	1
Iron Mountain	41.1 mi	4.00 pCi/L	1
Negaunee	44.3 mi	10.00 pCi/L	1

Delta County Radon Profile

The EPA maps Delta County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 2 cities in Delta County average 5.40 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Delta County home regardless of zone or a neighbor's results.

Radon FAQ for Cornell, MI

What EPA Radon Zone is Cornell in?

Cornell and the 49818 zip code are in Delta 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 Cornell?

No homeowner radon tests have been submitted for Cornell yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Delta County average—are the best available indicator of local conditions until Cornell 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 Cornell?

Radon mitigation in Cornell 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 Cornell?

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.