Recent budget cuts by EPA eliminated funding for radon outreach. Although this website will be maintained, all questions concerning radon should be directed to EPA at (303) 312-6017 or Schiller.Ron@epamail.epa.gov


  • What Is Radon? - An explanation of what radon is and how it can enter your home.

  • South Dakota Levels - A brief summary of SD levels and maps showing radon potential for SD and US.

  • How To Test - Where to get a radon test kit, basic instruction on how to do the test and links to lists of certified measurement providers for SD.

  • Mitigation - Methods to reduce radon levels in your home and links to lists of certified mitigation professionals for SD.

  • Courses - Radon related courses sponsored by DENR.

  • More Information - List of available publications, 1-800 hotline numbers, and other related websites.



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Picture of the Joe Foss Building in Pierre, South Dakota and link for driving directions

Joe Foss Building
523 E. Capitol
Pierre, SD 57501
(605) 773-3151