Foster City, MI Radon Levels

Q: What EPA Radon Zone is Foster City in?

Foster City is in Dickinson County, EPA Zone 2.

Q: How much does radon mitigation cost in Foster City?

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

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

Foster City, MI Radon Facts

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

County Dickinson County, MI

Zip Code 49834

Foster City lies in Dickinson County in Michigan's Upper Peninsula, where Precambrian granite and metamorphic rocks create moderate radon potential in EPA Zone 2 territory. Testing data is currently insufficient for this 49834 zip code, making individual home testing crucial for residents. The region's harsh winters mean homes stay tightly sealed for extended periods, potentially allowing radon to accumulate in basements and lower-level living spaces.

4.33

pCi/L area average

Above EPA Action Level

Dickinson County average: 4.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Foster City 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+

Foster City, 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 Foster City, MI

No homeowner tests have been submitted for Foster City 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
Vulcan	12.9 mi	3.00 pCi/L	1
Norway	13.0 mi	6.00 pCi/L	1
Iron Mountain	17.1 mi	4.00 pCi/L	1
Gwinn	30.8 mi	9.00 pCi/L	1
Gladstone	31.2 mi	5.25 pCi/L	4
Escanaba	34.5 mi	6.00 pCi/L	1
Negaunee	39.4 mi	10.00 pCi/L	1

Dickinson County Radon Profile

Dickinson County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 3 cities in Dickinson County average 4.33 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 Dickinson County.

Radon FAQ for Foster City, MI

What EPA Radon Zone is Foster City in?

Foster City and the 49834 zip code are in Dickinson 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 Foster City?

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

Radon mitigation in Foster City 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 Foster City?

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.