Mazon, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Mazon in?

Mazon is in Grundy County, EPA Zone 1.

Q: How much does radon mitigation cost in Mazon?

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

Grundy County

EPA Zone 1

Located in Grundy County in the southern suburban reaches of the Chicago Metro, Mazon sits on glacial till deposits over Pennsylvanian limestone bedrock. The area's geological conditions create high radon potential, particularly in the many homes with full basements common throughout this region. Testing data for zip code 60444 remains limited, making individual radon testing essential for local residents.

Mazon, IL Radon Mitigation

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

Mazon, IL Radon Testing

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

Mazon Radon Facts

Key details about the radon risk profile for Mazon and the 60444 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Grundy County, IL

Zip Code

60444

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mazon and the 60444 zip code are located in Grundy 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 Mazon, IL

What EPA Radon Zone is Mazon in?

Mazon and the 60444 zip code are in Grundy 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 Mazon?

Radon mitigation in Mazon 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 Mazon?

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