Reliance, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Reliance in?

Reliance is in Lyman County, EPA Zone 1.

Q: How much does radon mitigation cost in Reliance?

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

Lyman County

EPA Zone 1

This rural Lyman County community sits in south-central South Dakota, where underlying Pierre Shale formations can contribute to elevated radon levels in some areas. While comprehensive testing data for zip code 57569 is currently unavailable, the region's geological characteristics suggest homeowners should prioritize radon testing. The area's mix of older farmsteads and newer rural homes creates varied foundation conditions where radon entry patterns can differ significantly.

Reliance, SD Radon Mitigation

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

Reliance, SD Radon Testing

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

Reliance Radon Facts

Key details about the radon risk profile for Reliance and the 57569 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lyman County, SD

Zip Code

57569

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Reliance and the 57569 zip code are located in Lyman 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 Reliance, SD

What EPA Radon Zone is Reliance in?

Reliance and the 57569 zip code are in Lyman 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 Reliance?

Radon mitigation in Reliance 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 Reliance?

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