Fort Gratiot, MI Radon Levels

Q: What EPA Radon Zone is Fort Gratiot in?

Fort Gratiot is in St Clair County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Fort Gratiot?

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

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

Fort Gratiot, MI Radon Facts

EPA Radon Zone Unknown Unknown

County St Clair County, MI

Zip Code 48059

Situated in St. Clair County at the southern tip of Lake Huron, Fort Gratiot benefits from lakeshore geography where sandy soils and proximity to the Great Lakes typically reduce radon accumulation potential. Available testing data for zip code 48059 within the Detroit Metro area remains limited, though the community's mix of older lakefront properties and newer suburban developments still warrants testing. Homes with basements, particularly those built before modern construction standards, should be prioritized for radon assessment.

8.33

pCi/L area average

Above EPA Action Level

St Clair County average: 8.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Fort Gratiot 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+

Fort Gratiot, 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 Fort Gratiot, MI

No homeowner tests have been submitted for Fort Gratiot 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
Goodells	14.2 mi	4.00 pCi/L	1
East China	21.7 mi	10.50 pCi/L	2
Richmond	23.3 mi	2.00 pCi/L	1
Port Sanilac	23.9 mi	2.00 pCi/L	1
Imlay City	29.5 mi	4.00 pCi/L	1
Washington	36.2 mi	5.00 pCi/L	2
Macomb	36.4 mi	3.00 pCi/L	1
Clinton Township	41.1 mi	6.50 pCi/L	2

St Clair County Radon Profile

St Clair County has not been assigned a definitive EPA radon zone, so the agency recommends that every home be tested regardless of predicted risk. Homeowner-submitted tests from 3 cities in St Clair County average 8.33 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in St Clair County.

Radon FAQ for Fort Gratiot, MI

What EPA Radon Zone is Fort Gratiot in?

Fort Gratiot and the 48059 zip code are in St Clair County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

Why are radon readings shown from areas near Fort Gratiot?

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

Radon mitigation in Fort Gratiot 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 Fort Gratiot?

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.