Leonard, MI Radon Levels

Q: What EPA Radon Zone is Leonard in?

Leonard is in Oakland County, EPA Zone 2.

Q: How much does radon mitigation cost in Leonard?

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

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

Leonard, MI Radon Facts

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

County Oakland County, MI

Zip Code 48367

Positioned in Oakland County within the Detroit metropolitan area, Leonard sits where glacial deposits and clay soils over limestone bedrock contribute to Michigan's elevated radon potential statewide. The community features typical southeastern Michigan housing including ranch homes and two-story properties, most with full basements. With specific testing data unavailable for this 48367 area, residents should prioritize professional radon assessment given the county's geological characteristics.

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 Leonard 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+

Leonard, MI Radon Mitigation

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

Need Radon Mitigation or Testing in Leonard?

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Radon Readings Near Leonard, MI

No homeowner tests have been submitted for Leonard 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
Oxford	5.3 mi	11.00 pCi/L	2
Washington	8.6 mi	5.00 pCi/L	2
Lake Orion	9.5 mi	11.00 pCi/L	2
Rochester	11.1 mi	9.00 pCi/L	5
Auburn Hills	13.7 mi	10.00 pCi/L	1
Imlay City	14.2 mi	4.00 pCi/L	1
Clarkston	15.5 mi	5.00 pCi/L	4
Richmond	17.3 mi	2.00 pCi/L	1

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 Leonard, MI

What EPA Radon Zone is Leonard in?

Leonard and the 48367 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 Leonard?

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

Radon mitigation in Leonard 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 Leonard?

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.