Delavan, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Delavan in?

Delavan is in Tazewell County, EPA Zone 1.

Q: How much does radon mitigation cost in Delavan?

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

Tazewell County

EPA Zone 1

Situated in Tazewell County within the Peoria Metro area, Delavan rests in the Illinois River valley where alluvial soils over limestone bedrock create variable radon conditions. Local testing data remains limited for zip code 61734, making professional radon testing essential for homeowners. The area's mix of historic and postwar homes, many with full basements, provides the below-grade spaces where radon can accumulate most readily.

Delavan, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Delavan, IL Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Delavan Radon Facts

Key details about the radon risk profile for Delavan and the 61734 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Tazewell County, IL

Zip Code

61734

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Delavan and the 61734 zip code are located in Tazewell County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Delavan, IL

What EPA Radon Zone is Delavan in?

Delavan and the 61734 zip code are in Tazewell 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.

How much does radon mitigation cost in Delavan?

Radon mitigation in Delavan 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 Delavan?

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.

Most Active Radon Markets in Illinois

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4