Alto Pass, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Alto Pass in?

Alto Pass is in Union County, EPA Zone 2.

Q: How much does radon mitigation cost in Alto Pass?

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

Union County

EPA Zone 2

Positioned in Union County near the Shawnee National Forest, Alto Pass sits on sandstone and shale formations that typically produce lower radon levels than northern Illinois. However, with limited testing data available for the 62905 zip code, individual home testing remains the only way to determine actual radon exposure levels.

Alto Pass, IL Radon Mitigation

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

Alto Pass, IL Radon Testing

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

Alto Pass Radon Facts

Key details about the radon risk profile for Alto Pass and the 62905 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Union County, IL

Zip Code

62905

Predicted Screening Level

2–4 pCi/L (Zone 2)

Alto Pass and the 62905 zip code are located in Union 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 Alto Pass, IL

What EPA Radon Zone is Alto Pass in?

Alto Pass and the 62905 zip code are in Union 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 Alto Pass?

Radon mitigation in Alto Pass 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 Alto Pass?

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