Septic Tank Systems
Because South Dakota is a rural state, approximately 25% of our residents rely upon on-site 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 on-site 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 Matt Cherney at (605) 773-3351.
South Dakota's regulations for on-site 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 send a written request for a copy of the test or contact Matt Cherney at (605) 773-3351. Also, please contact Matt 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)