Rock, MI Radon Levels

Q: What EPA Radon Zone is Rock in?

Rock is in Delta County, EPA Zone 3.

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

No homeowner radon tests have been submitted for Rock 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 Rock?

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

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

Rock, MI Radon Facts

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

County Delta County, MI

Zip Code 49880

Located in Delta County in Michigan's Upper Peninsula, Rock sits in EPA Zone 3 where the region's Precambrian igneous and metamorphic bedrock typically produces lower radon levels. The 49880 area features scattered rural properties with foundation types adapted to the harsh northern climate, including many full basements for frost protection. While testing data remains limited, the geological conditions suggest relatively lower radon risk compared to other parts of Michigan.

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 Rock 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+

Rock, 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 Rock, MI

No homeowner tests have been submitted for Rock 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	11.7 mi	5.25 pCi/L	4
Escanaba	19.8 mi	6.00 pCi/L	1
Gwinn	24.3 mi	9.00 pCi/L	1
Negaunee	37.8 mi	10.00 pCi/L	1
Vulcan	38.4 mi	3.00 pCi/L	1
Norway	41.3 mi	6.00 pCi/L	1
Iron Mountain	47.6 mi	4.00 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 Rock, MI

What EPA Radon Zone is Rock in?

Rock and the 49880 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 Rock?

No homeowner radon tests have been submitted for Rock 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 Rock 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 Rock?

Radon mitigation in Rock 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 Rock?

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.