SOUTH DAKOTA Department of
Environment & Natural Resources

Protecting South Dakota's Tomorrow...Today!
Joe Foss Building
523 E Capitol
Pierre, SD 57501
Field Offices
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Feedlot Permit Program

Septic Tank Systems

Installation Requirements

Picture showing installation of drainfieldBecause South Dakota is a rural state, approximately 25% of our residents rely upon onsite wastewater systems to provide their wastewater treatment needs. These systems typically consist of a septic tank and a drainfield. South Dakota has developed installation requirements for onsite wastewater systems. These design requirements ensure that wastewater discharged into these systems is treated properly and will not pose a risk to human health or the environment. A checklist of information required when submitting septic tank installation plans has been prepared for your convenience. For more information, contact Scott Hipple at (605) 773-3351.

South Dakota's regulations for onsite wastewater systems are found in the Administrative Rules of South Dakota, Chapter 74:53:01 at this link.

Septic Tank Installer Certification

South Dakota has developed a certification program for septic tank system installers. This program ensures that the installers understand the design requirements. To become a certified installer you will need to pass a test with a score of 70% or higher.  You may either submit an online request or a written request for a copy of the test or contact Scott Hipple at (605) 773-3351.  Also, please contact Scott if you have any other questions about septic tanks or installer certification. The Department maintains a list of certified installers for use by the public.

Septic tank and sewage disposal complaints

Domestic Septage Land Application and Disposal Guidance

Watch a video on the proper installation, operation and maintenance of a septic system:
Living With a Septic System (RealPlayer needed to watch video -- available online here)