Arrowsmith, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Arrowsmith in?

Arrowsmith is in McLean County, EPA Zone 1.

Q: How much does radon mitigation cost in Arrowsmith?

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

McLean County

EPA Zone 1

This McLean County farming community in zip code 61722 sits within the Bloomington Metro area atop deep glacial moraine deposits that create moderate-to-high radon potential across central Illinois. Arrowsmith's housing reflects typical rural Illinois character, with older farmsteads and newer homes often featuring full or partial basement foundations. Although specific testing data for this small town is limited, the underlying limestone bedrock and glacial soils common to McLean County suggest homeowners should consider radon testing.

Arrowsmith, IL Radon Mitigation

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

Arrowsmith, IL Radon Testing

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

Arrowsmith Radon Facts

Key details about the radon risk profile for Arrowsmith and the 61722 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McLean County, IL

Zip Code

61722

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Arrowsmith and the 61722 zip code are located in McLean 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 Arrowsmith, IL

What EPA Radon Zone is Arrowsmith in?

Arrowsmith and the 61722 zip code are in McLean 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 Arrowsmith?

Radon mitigation in Arrowsmith 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 Arrowsmith?

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