Noble, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Noble in?

Noble is in Richland County, EPA Zone 2.

Q: How much does radon mitigation cost in Noble?

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

Richland County

EPA Zone 2

Testing data for Noble in Richland County remains limited, making it essential for homeowners in zip code 62868 to conduct independent radon assessments. Located in southeastern Illinois where Pennsylvanian-era coal measures and shale deposits create generally moderate radon conditions, this rural community features widely spaced residential properties with older farmhouses and newer manufactured homes. Homeowners should prioritize radon testing regardless of foundation type, as individual readings can vary significantly even in areas with generally lower geological radon potential.

Noble, IL Radon Mitigation

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

Noble, IL Radon Testing

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

Noble Radon Facts

Key details about the radon risk profile for Noble and the 62868 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Richland County, IL

Zip Code

62868

Predicted Screening Level

2–4 pCi/L (Zone 2)

Noble and the 62868 zip code are located in Richland County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Noble, IL

What EPA Radon Zone is Noble in?

Noble and the 62868 zip code are in Richland County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Noble?

Radon mitigation in Noble 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 Noble?

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