Grand Chain, IL Radon Levels

Q: What EPA Radon Zone is Grand Chain in?

Grand Chain is in Pulaski County, EPA Zone 3.

Q: Why are radon readings shown from areas near Grand Chain?

No homeowner radon tests have been submitted for Grand Chain yet, so readings from the closest cities and the Pulaski County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Grand Chain?

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

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

Grand Chain, IL Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Pulaski County, IL

Zip Code 62941

Positioned in Pulaski County in southern Illinois, Grand Chain sits on Mississippi River floodplain deposits that influence local radon conditions. Testing data remains limited for zip code 62941, making individual home testing valuable for residents assessing their radon exposure.

7.50

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.50 pCi/L, based on 2 tests from 2 nearby cities. No readings have been submitted for Grand Chain yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Grand Chain, IL 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 Grand Chain, IL

No homeowner tests have been submitted for Grand Chain 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
Marion	33.1 mi	5.00 pCi/L	1
Murphysboro	39.7 mi	10.00 pCi/L	1

Pulaski County Radon Profile

Pulaski County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. User-submitted readings are still sparse within Pulaski County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. 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 Pulaski County.

Radon FAQ for Grand Chain, IL

What EPA Radon Zone is Grand Chain in?

Grand Chain and the 62941 zip code are in Pulaski County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

Why are radon readings shown from areas near Grand Chain?

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

Radon mitigation in Grand Chain 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 Grand Chain?

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.