Petersburg, MI Radon Levels

Q: What EPA Radon Zone is Petersburg in?

Petersburg is in Monroe County, EPA Zone 2.

Q: How much does radon mitigation cost in Petersburg?

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

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

Petersburg, MI Radon Facts

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

County Monroe County, MI

Zip Code 49270

Located in southeastern Michigan's Monroe County, Petersburg sits on glacial lake deposits and clay-rich soils from ancient Lake Warren. While radon testing data for this area is currently limited, the region's geological composition can produce variable radon levels, making individual home testing important for residents across the 49270 zip code area.

4.00

pCi/L area average

Above EPA Action Level

Monroe County average: 4.00 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Petersburg 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+

Petersburg, 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 Petersburg, MI

No homeowner tests have been submitted for Petersburg 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
Britton	11.0 mi	8.00 pCi/L	1
Tecumseh	16.1 mi	11.50 pCi/L	2
Clinton	18.5 mi	6.00 pCi/L	1
Carleton	20.2 mi	4.00 pCi/L	1
Saline	20.9 mi	1.00 pCi/L	1
Newport	22.1 mi	4.00 pCi/L	1
Tipton	22.9 mi	4.00 pCi/L	1
Ypsilanti	25.4 mi	8.50 pCi/L	4

Monroe County Radon Profile

Monroe 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 2 cities in Monroe County average 4.00 pCi/L across 2 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 Monroe County.

Radon FAQ for Petersburg, MI

What EPA Radon Zone is Petersburg in?

Petersburg and the 49270 zip code are in Monroe 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 Petersburg?

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

Radon mitigation in Petersburg 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 Petersburg?

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.