Ortley, SD Radon Levels

Q: What EPA Radon Zone is Ortley in?

Ortley is in Roberts County, EPA Zone 1.

Q: How much does radon mitigation cost in Ortley?

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

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

Ortley, SD Radon Facts

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

County Roberts County, SD

Zip Code 57256

Rural Roberts County community in northeastern South Dakota, Ortley occupies EPA Zone 1 where glacial till deposits create high radon potential across the prairie region. Testing data for zip code 57256 remains limited, making individual home testing essential for residents. The area's typical basement construction and underlying geological conditions can contribute to significant radon accumulation in homes.

Ortley, SD Radon Mitigation

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

Need Radon Mitigation or Testing in Ortley?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Roberts County Pros

1-800-299-3578 Toll-free · Mon–Fri 8am–6pm ET

Radon FAQ for Ortley, SD

What EPA Radon Zone is Ortley in?

Ortley and the 57256 zip code are in Roberts 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 Ortley?

Radon mitigation in Ortley 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 Ortley?

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