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Grand Blanc, MI Radon Levels

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


Grand Blanc, MI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Genesee County, MI
Zip Code 48439
Avg. User Level 4.00 pCi/L
User Tests 1

Located in Genesee County within both the Detroit and Flint Metro areas, Grand Blanc has recorded an average radon level of 4.0 pCi/L, right at the EPA action threshold. Homes in zip codes 48439 and 48480 should undergo testing to determine if mitigation is necessary.

4.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Grand Blanc, MI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Grand Blanc, MI Radon Mitigation

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

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Grand Blanc, MI Radon Levels

User-submitted radon test readings from homes in the Grand Blanc area.

Radon LevelCityHome AgeFoundation
4 pCi/L Grand Blanc, MI 0-20 Years Full Basement

Have a radon test result for Grand Blanc? Submit your reading to help other homeowners.

Radon Readings Near Grand Blanc, MI

Compare radon levels in Grand Blanc with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Goodrich 7.0 mi 5.00 pCi/L 1
Flint 8.7 mi 9.00 pCi/L 3
Holly 9.2 mi 4.00 pCi/L 1
Swartz Creek 10.0 mi 10.00 pCi/L 1
Fenton 11.0 mi 4.00 pCi/L 1
Linden 11.9 mi 3.50 pCi/L 2
Flushing 15.2 mi 7.50 pCi/L 2
Clarkston 16.4 mi 5.00 pCi/L 4

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 Grand Blanc, MI

What is the average radon level in Grand Blanc, MI?
Based on 1 user-submitted test, the average radon level in Grand Blanc is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Grand Blanc in?
Grand Blanc and the 48439 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.
How much does radon mitigation cost in Grand Blanc?
Radon mitigation in Grand Blanc 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 Grand Blanc?
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.