Chaffee, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Chaffee in?

Chaffee is in Scott County, EPA Zone 3.

Q: How much does radon mitigation cost in Chaffee?

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

Scott County

EPA Zone 3

This Scott County community in southeastern Missouri sits in the Mississippi River lowlands, where alluvial soils over underlying bedrock create variable radon conditions throughout the region. Housing in Chaffee typically features slab-on-grade foundations and crawl spaces, which can still accumulate radon despite different foundation styles. With limited testing data available for zip code 63740, residents should prioritize radon testing to establish baseline levels for their homes.

Chaffee, MO Radon Mitigation

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

Chaffee, MO Radon Testing

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

Chaffee Radon Facts

Key details about the radon risk profile for Chaffee and the 63740 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Scott County, MO

Zip Code

63740

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Chaffee and the 63740 zip code are located in Scott County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Chaffee, MO

What EPA Radon Zone is Chaffee in?

Chaffee and the 63740 zip code are in Scott County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Chaffee?

Radon mitigation in Chaffee 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 Chaffee?

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 Missouri

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0