Geddes, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Geddes in?

Geddes is in Charles Mix County, EPA Zone 1.

Q: How much does radon mitigation cost in Geddes?

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

Charles Mix County

EPA Zone 1

Positioned in Charles Mix County along the Missouri River corridor, Geddes sits where glacial till deposits over Pierre Shale create elevated radon potential throughout south-central South Dakota. Since specific testing data for ZIP code 57342 is not yet available, homeowners should prioritize radon testing given the geological conditions. The community's mix of older farmsteads and modern rural homes means foundation types vary, making individual testing crucial for each property.

Geddes, SD Radon Mitigation

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

Geddes, SD Radon Testing

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

Geddes Radon Facts

Key details about the radon risk profile for Geddes and the 57342 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Charles Mix County, SD

Zip Code

57342

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Geddes and the 57342 zip code are located in Charles Mix 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 Geddes, SD

What EPA Radon Zone is Geddes in?

Geddes and the 57342 zip code are in Charles Mix 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 Geddes?

Radon mitigation in Geddes 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 Geddes?

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 South Dakota

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

City	Avg User Radon Level	Submissions
Spearfish	7.75 pCi/L	4
Rapid City	10.50 pCi/L	2
Aberdeen	8.50 pCi/L	2
Sioux Falls	6.00 pCi/L	2
Watertown	6.00 pCi/L	2