Pleasant Plains, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Pleasant Plains in?

Pleasant Plains is in Sangamon County, EPA Zone 1.

Q: How much does radon mitigation cost in Pleasant Plains?

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

Sangamon County

EPA Zone 1

Positioned in Sangamon County within the Springfield Metro area, Pleasant Plains sits in central Illinois where glacial till deposits over limestone bedrock create high radon potential typical of the state's EPA Zone 1 designation. Though current radon testing data for this 62677 community is limited, the geological conditions and prevalence of homes with full basements make testing particularly important. Central Illinois's glacial geology provides excellent pathways for radon gas migration from underlying carbonate formations.

Pleasant Plains, IL Radon Mitigation

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

Pleasant Plains, IL Radon Testing

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

Pleasant Plains Radon Facts

Key details about the radon risk profile for Pleasant Plains and the 62677 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Sangamon County, IL

Zip Code

62677

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Pleasant Plains and the 62677 zip code are located in Sangamon 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 Pleasant Plains, IL

What EPA Radon Zone is Pleasant Plains in?

Pleasant Plains and the 62677 zip code are in Sangamon 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 Pleasant Plains?

Radon mitigation in Pleasant Plains 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 Pleasant Plains?

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