Tamms, IL Radon Levels

Q: What EPA Radon Zone is Tamms in?

Tamms is in Alexander County, EPA Zone 3.

Q: Why are radon readings shown from areas near Tamms?

No homeowner radon tests have been submitted for Tamms yet, so readings from the closest cities and the Alexander 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 Tamms?

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

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

Tamms, IL Radon Facts

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

County Alexander County, IL

Zip Code 62988

Located in Alexander County at Illinois' southern tip, Tamms sits in the Shawnee Hills region where sandstone and shale formations generally produce lower radon levels than northern Illinois' limestone areas. The community's housing mix includes older homes with various foundation types that may concentrate radon differently throughout zip code 62988. While comprehensive testing data for Tamms is currently limited, residents should still consider radon testing since individual homes can exceed EPA guidelines regardless of regional geology.

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 Tamms 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+

Tamms, 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 Tamms, IL

No homeowner tests have been submitted for Tamms 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
Murphysboro	36.8 mi	10.00 pCi/L	1
Marion	38.9 mi	5.00 pCi/L	1

Alexander County Radon Profile

The EPA maps Alexander County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Direct test data for Alexander County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Alexander County home regardless of zone or a neighbor's results.

Radon FAQ for Tamms, IL

What EPA Radon Zone is Tamms in?

Tamms and the 62988 zip code are in Alexander 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 Tamms?

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

Radon mitigation in Tamms 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 Tamms?

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.