Radon testing & mitigation in Box Elder, SD
East-side homes near Ellsworth AFB and I-90. Like the rest of the Rapid City region, Box Elder sits in South Dakota’s high radon potential context—test to know your home.
Radon risk around Box Elder
Pennington County and the broader Black Hills fall in EPA Radon Zone 1. That designation reflects geology and survey patterns—not a score for your street. Homes in Box Elder include basements, crawl spaces, and slabs; each needs its own measurement.
Whether you are finishing a lower level, buying near Box Elder, or retesting after several years, start with a protocol-compliant test and read results against EPA’s 4.0 pCi/L action level.
Services available
Guides locals open first
- Radon levels in South Dakota
- Black Hills geology and radon
- Testing when buying a home
- How mitigation works
Nearby communities
Rapid City · Summerset · Piedmont · Black Hawk · Rapid Valley · Hill City · Spearfish