Long Lake, SD Radon Levels

Q: What EPA Radon Zone is Long Lake in?

Long Lake is in McPherson County, EPA Zone 1.

Q: How much does radon mitigation cost in Long Lake?

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

Check local Long Lake radon levels and find certified testing and mitigation professionals to keep your home safe

Long Lake, SD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County McPherson County, SD

Zip Code 57457

Situated in McPherson County across South Dakota's north-central prairie, Long Lake rests on glacial till deposits where radon testing data is currently unavailable. This agricultural community in zip code 57457 consists of farmsteads and rural homes, many featuring full basements essential for Great Plains weather protection and storage needs. Despite limited local data, the EPA Zone 1 classification and underlying glacial geology suggest that comprehensive radon testing should be a priority for area homeowners.

Long Lake, SD Radon Mitigation

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

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Radon FAQ for Long Lake, SD

What EPA Radon Zone is Long Lake in?

Long Lake and the 57457 zip code are in McPherson 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 Long Lake?

Radon mitigation in Long Lake 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 Long Lake?

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 in South Dakota with the most user-submitted radon test data, ranked by number of submissions.

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