Savanna, IL Radon Levels

Q: What EPA Radon Zone is Savanna in?

Savanna is in Carroll County, EPA Zone 1.

Q: How much does radon mitigation cost in Savanna?

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

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

Savanna, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Carroll County, IL

Zip Code 61074

Nestled along the Mississippi River in Carroll County, Savanna sits where river valley alluvial soils meet underlying limestone bedrock. While specific radon testing data for zip code 61074 remains limited, the geological conditions here can create variable radon potential throughout the community. Historic river town homes and newer residential properties may experience different radon levels based on their foundation types and proximity to bedrock outcrops.

12.00

pCi/L area average

Above EPA Action Level

Carroll County average: 12.00 pCi/L, based on 3 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Savanna 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+

Savanna, 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 Savanna, IL

No homeowner tests have been submitted for Savanna 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
Hanover	13.7 mi	5.00 pCi/L	1
Lanark	16.2 mi	12.00 pCi/L	3
Fulton	16.8 mi	4.00 pCi/L	1
Galena	26.5 mi	1.00 pCi/L	1
Freeport	29.5 mi	3.67 pCi/L	3
Rock Falls	32.3 mi	6.00 pCi/L	2
East Dubuque	36.0 mi	8.00 pCi/L	2
Mount Morris	36.3 mi	4.00 pCi/L	1

Carroll County Radon Profile

Because of its underlying geology, Carroll County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 1 city in Carroll County average 12.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Carroll County home regardless of zone or a neighbor's results.

Radon FAQ for Savanna, IL

What EPA Radon Zone is Savanna in?

Savanna and the 61074 zip code are in Carroll County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Savanna?

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

Radon mitigation in Savanna 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 Savanna?

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.