East Carondelet, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is East Carondelet in?

East Carondelet is in St Clair County, EPA Zone 2.

Q: How much does radon mitigation cost in East Carondelet?

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

St Clair County

EPA Zone 2

Positioned on the Illinois side of the St. Louis Metro area in St Clair County, East Carondelet sits within the Mississippi River floodplain over underlying limestone formations. While specific radon testing data remains unavailable for this community, the area's geological composition suggests moderate radon potential. Homeowners in the 62240 zip code should consider testing, especially those with basement foundations near the limestone bluffs.

East Carondelet, IL Radon Mitigation

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

East Carondelet, IL Radon Testing

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

East Carondelet Radon Facts

Key details about the radon risk profile for East Carondelet and the 62240 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

St Clair County, IL

Zip Code

62240

Predicted Screening Level

2–4 pCi/L (Zone 2)

East Carondelet and the 62240 zip code are located in St Clair 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 East Carondelet, IL

What EPA Radon Zone is East Carondelet in?

East Carondelet and the 62240 zip code are in St Clair 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 East Carondelet?

Radon mitigation in East Carondelet 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 East Carondelet?

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