Ortonville, MI Radon Levels

Q: What EPA Radon Zone is Ortonville in?

Ortonville is in Oakland County, EPA Zone 2.

Q: How much does radon mitigation cost in Ortonville?

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

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

Ortonville, MI Radon Facts

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

County Oakland County, MI

Zip Code 48462

Located in Oakland County within both the Detroit and Flint Metro areas, Ortonville sits in EPA Zone 2 where Michigan's glacial deposits over limestone bedrock create moderate radon potential. With limited testing data from zip code 48462, homeowners should conduct comprehensive radon evaluation. The area's mix of lake properties and suburban development presents varying foundation types and radon entry pathways.

7.30

pCi/L area average

Above EPA Action Level

Oakland County average: 7.30 pCi/L, based on 50 user-submitted tests across 22 cities in the county. No homeowner readings have been submitted for Ortonville 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+

Ortonville, 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 Ortonville, MI

No homeowner tests have been submitted for Ortonville 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
Goodrich	5.8 mi	5.00 pCi/L	1
Clarkston	6.9 mi	5.00 pCi/L	4
Oxford	9.5 mi	11.00 pCi/L	2
Holly	9.9 mi	4.00 pCi/L	1
Lake Orion	10.1 mi	11.00 pCi/L	2
Grand Blanc	11.3 mi	4.00 pCi/L	1
Waterford	12.8 mi	7.75 pCi/L	4
White Lake	13.8 mi	10.00 pCi/L	4

Oakland County Radon Profile

The soils and bedrock of Oakland 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 22 cities in Oakland County average 7.30 pCi/L across 50 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 Oakland County to test, as levels can differ between neighboring homes.

Radon FAQ for Ortonville, MI

What EPA Radon Zone is Ortonville in?

Ortonville and the 48462 zip code are in Oakland 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 Ortonville?

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

Radon mitigation in Ortonville 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 Ortonville?

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.