Smiths Creek, MI Radon Levels

Q: What EPA Radon Zone is Smiths Creek in?

Smiths Creek is in St Clair County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Smiths Creek?

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

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

Smiths Creek, MI Radon Facts

EPA Radon Zone Unknown Unknown

County St Clair County, MI

Zip Code 48074

Located in St Clair County within the Detroit Metro area, Smiths Creek sits on glacial lake deposits and clay soils typical of southeastern Michigan's flat terrain, where radon levels can vary significantly based on local geological conditions. The community features a mix of rural residential properties and newer suburban development, many with full basements common to Michigan's building traditions. With testing data currently limited for zip code 48074, homeowners should consider professional radon assessment to establish safe indoor air quality levels.

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 Smiths Creek 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+

Smiths Creek, 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 Smiths Creek, MI

No homeowner tests have been submitted for Smiths Creek 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	6.8 mi	4.00 pCi/L	1
East China	8.9 mi	10.50 pCi/L	2
Richmond	12.6 mi	2.00 pCi/L	1
Macomb	24.2 mi	3.00 pCi/L	1
Washington	26.0 mi	5.00 pCi/L	2
Imlay City	27.1 mi	4.00 pCi/L	1
Clinton Township	28.6 mi	6.50 pCi/L	2
Sterling Heights	32.2 mi	7.00 pCi/L	1

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 Smiths Creek, MI

What EPA Radon Zone is Smiths Creek in?

Smiths Creek and the 48074 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 Smiths Creek?

No homeowner radon tests have been submitted for Smiths Creek 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 Smiths Creek 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 Smiths Creek?

Radon mitigation in Smiths Creek 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 Smiths Creek?

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.