On-Site Wastewater Systems

Septic Tank Installation Requirements

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 Abraham Waldner at (605) 773-4647.

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 written test administered by the South Dakota Plumbing Commission. For more information, please contact the South Dakota Plumbing Commission at (605) 773-3429.

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)

Questions? Please contact Troy Roth at (605) 773-4647.