Berwick, IL Radon Levels

Q: What EPA Radon Zone is Berwick in?

Berwick is in Warren County, EPA Zone 1.

Q: How much does radon mitigation cost in Berwick?

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

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

Berwick, IL Radon Facts

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

County Warren County, IL

Zip Code 61417

Berwick lies in Warren County in west-central Illinois, where glacial till over Pennsylvanian bedrock creates moderate radon potential. Testing data for this small community in ZIP 61417 is currently limited, encouraging homeowners to conduct individual radon measurements. The area's mix of older farmhouses and newer rural homes typically feature basements or partial basements where radon accumulation occurs.

8.00

pCi/L area average

Above EPA Action Level

Warren County average: 8.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Berwick 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+

Berwick, 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 Berwick, IL

No homeowner tests have been submitted for Berwick 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
Monmouth	11.6 mi	8.00 pCi/L	1
Knoxville	14.6 mi	8.00 pCi/L	1
Stronghurst	22.1 mi	13.00 pCi/L	2
Cuba	25.8 mi	6.00 pCi/L	1
New Windsor	29.0 mi	6.00 pCi/L	1
Dallas City	35.5 mi	9.00 pCi/L	1
Orion	40.8 mi	4.00 pCi/L	1
Mapleton	42.9 mi	8.00 pCi/L	1

Warren County Radon Profile

Warren County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Warren County average 8.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Warren County to test, as levels can differ between neighboring homes.

Radon FAQ for Berwick, IL

What EPA Radon Zone is Berwick in?

Berwick and the 61417 zip code are in Warren 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 Berwick?

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

Radon mitigation in Berwick 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 Berwick?

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.