Marine City, MI Radon Levels

Q: What EPA Radon Zone is Marine City in?

Marine City is in St Clair County, EPA Zone Unknown.

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

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

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

Marine City, MI Radon Facts

EPA Radon Zone Unknown Unknown

County St Clair County, MI

Zip Code 48039

Positioned along the St. Clair River in St. Clair County within the Detroit Metro area, Marine City sits on glacial lake deposits over sedimentary bedrock. The community features a mix of historic riverfront homes and suburban residential development, with many properties built on full basement foundations typical of southeastern Michigan. Although comprehensive radon testing data is limited for this waterfront community, homeowners should consider individual testing given Michigan's variable radon conditions.

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 Marine 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+

Marine City, MI Radon Mitigation

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

Need Radon Mitigation or Testing in Marine City?

100% Free, No-Obligation Quotes
Matches You with State-Licensed St Clair County Pros

1-800-299-3578 248-209-6834 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Marine City, MI

No homeowner tests have been submitted for Marine 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
East China	6.3 mi	10.50 pCi/L	2
Richmond	16.5 mi	2.00 pCi/L	1
Macomb	18.3 mi	3.00 pCi/L	1
Goodells	19.2 mi	4.00 pCi/L	1
Clinton Township	20.5 mi	6.50 pCi/L	2
Washington	24.9 mi	5.00 pCi/L	2
Sterling Heights	25.2 mi	7.00 pCi/L	1
Harper Woods	25.8 mi	5.00 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 Marine City, MI

What EPA Radon Zone is Marine City in?

Marine City and the 48039 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 Marine City?

No homeowner radon tests have been submitted for Marine City 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 Marine 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 Marine City?

Radon mitigation in Marine 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 Marine 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.