Wallace, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Wallace in?

Wallace is in Codington County, EPA Zone 1.

Q: How much does radon mitigation cost in Wallace?

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

Codington County

EPA Zone 1

Found in Codington County amid South Dakota's glacial lake plains, Wallace sits on thick glacial till deposits that can trap and concentrate radon gas from underlying bedrock formations. Limited testing data exists for zip code 57272, making baseline radon testing essential for local homeowners to understand their exposure levels. The community's EPA Zone 1 designation reflects the region's elevated radon potential, particularly in homes with below-grade living spaces.

Wallace, SD Radon Mitigation

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

Wallace, SD Radon Testing

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

Wallace Radon Facts

Key details about the radon risk profile for Wallace and the 57272 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Codington County, SD

Zip Code

57272

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Wallace and the 57272 zip code are located in Codington 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 Wallace, SD

What EPA Radon Zone is Wallace in?

Wallace and the 57272 zip code are in Codington 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 Wallace?

Radon mitigation in Wallace 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 Wallace?

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