S.D. Codified Laws § 34A-6-71
Regionalization of recycling and solid waste planning, management, operations, and disposal are encouraged whenever possible. Any two or more responsible units of government may prepare a single solid waste evaluation as provided in § 34A-6-70 for the analysis of the solid waste needs within the combined area of the responsible units of government as provided in the joint powers provisions of chapter 1-24. The department shall prepare model joint solid waste planning, management, recycling, operations, and disposal agreements and shall provide them to responsible units for the purpose of promoting regional planning and developing the regional recycling and waste management districts provided for under the statewide comprehensive solid waste management plan. Every regional landfill shall make provisions for municipalities and other political subdivisions responsible for solid waste management to exercise the powers provided for under § 34A-6-67. However, each regional landfill may establish special rates commensurate with additional costs incurred by the landfill for waste containing materials not excluded from the waste stream as provided for under § 34A-6-67.
SDCL 34A-6-71