La Salle, MI Radon Levels

Q: What EPA Radon Zone is La Salle in?

La Salle is in Monroe County, EPA Zone 2.

Q: How much does radon mitigation cost in La Salle?

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

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

La Salle, MI Radon Facts

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

County Monroe County, MI

Zip Code 48145

Found in Monroe County within the Monroe Metro area, La Salle sits where glacial deposits meet the Great Lakes region's complex geology. While comprehensive radon data for zip code 48145 is currently limited, the community's EPA Zone 2 classification suggests moderate radon risk requiring attention. Michigan's variable soil conditions mean individual homes can experience significantly different radon levels, making professional testing crucial for informed decision-making.

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 La Salle 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+

La Salle, 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 La Salle, MI

No homeowner tests have been submitted for La Salle 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
Newport	12.8 mi	4.00 pCi/L	1
Carleton	14.3 mi	4.00 pCi/L	1
Britton	20.9 mi	8.00 pCi/L	1
Trenton	23.3 mi	5.00 pCi/L	1
Riverview	24.9 mi	2.00 pCi/L	1
Grosse Ile	25.1 mi	14.00 pCi/L	1
Tecumseh	26.6 mi	11.50 pCi/L	2
Saline	26.9 mi	1.00 pCi/L	1

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 La Salle, MI

What EPA Radon Zone is La Salle in?

La Salle and the 48145 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 La Salle?

No homeowner radon tests have been submitted for La Salle 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 La Salle 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 La Salle?

Radon mitigation in La Salle 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 La Salle?

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.