Clio, MI Radon Levels

Q: What EPA Radon Zone is Clio in?

Clio is in Genesee County, EPA Zone 2.

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

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

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

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

Clio, MI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Genesee County, MI

Zip Code 48420

Part of both the Flint and Saginaw metro areas, Clio in Genesee County (48420) sits on Michigan's glacial landscape where radon concerns are common. Although specific testing data is currently unavailable, the region's glacial deposits and underlying sedimentary rocks create variable radon potential. Residents should prioritize radon testing, particularly in homes with basements typical of this area's housing stock.

6.55

pCi/L area average

Above EPA Action Level

Genesee County average: 6.55 pCi/L, based on 11 user-submitted tests across 7 cities in the county. No homeowner readings have been submitted for Clio 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+

Clio, 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 Clio, MI

No homeowner tests have been submitted for Clio 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
Flushing	9.4 mi	7.50 pCi/L	2
Flint	10.3 mi	9.00 pCi/L	3
Frankenmuth	11.3 mi	19.00 pCi/L	1
Swartz Creek	16.6 mi	10.00 pCi/L	1
Grand Blanc	18.4 mi	4.00 pCi/L	1
Lapeer	21.4 mi	4.00 pCi/L	1
Goodrich	21.9 mi	5.00 pCi/L	1
Saginaw	21.9 mi	12.50 pCi/L	2

Genesee County Radon Profile

The soils and bedrock of Genesee County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 7 cities in Genesee County average 6.55 pCi/L across 11 tests — 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 Genesee County to test, as levels can differ between neighboring homes.

Radon FAQ for Clio, MI

What EPA Radon Zone is Clio in?

Clio and the 48420 zip code are in Genesee County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Clio?

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

Radon mitigation in Clio 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 Clio?

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.