Garretson, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Garretson in?

Garretson is in Minnehaha County, EPA Zone 1.

Q: How much does radon mitigation cost in Garretson?

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

Minnehaha County

EPA Zone 1

Situated in Minnehaha County near the Minnesota border, Garretson falls within EPA Zone 1 where radon concentrations tend to be elevated. The underlying glacial till deposits and Pierre Shale formations common to eastern South Dakota contribute to higher radon potential across the region. Without sufficient testing data available for zip code 57030, local homeowners are strongly encouraged to test their properties.

Garretson, SD Radon Mitigation

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

Garretson, SD Radon Testing

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

Garretson Radon Facts

Key details about the radon risk profile for Garretson and the 57030 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Minnehaha County, SD

Zip Code

57030

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Garretson and the 57030 zip code are located in Minnehaha 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 Garretson, SD

What EPA Radon Zone is Garretson in?

Garretson and the 57030 zip code are in Minnehaha 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 Garretson?

Radon mitigation in Garretson 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 Garretson?

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