S.D. Codified Laws § 34-8-4.1
The county commissioners of any county operating a county hospital which was established pursuant to the vote of the people shall have the authority to construct and equip improvements and additions thereto and for that purpose may borrow money and issue negotiable bonds without pledging or using the credit of such county for their payment, in lieu of or in addition to any bonds issued pursuant to § 34-8-2. Such bonds as so issued shall be paid exclusively from the revenues derived from furnishing care and treatment to patients using such hospital and additions thereto. All the provisions of chapter 9-40, dealing with municipal utility revenue bonds, insofar as applicable are applicable to revenue bonds issued under the provisions of this section.
SDCL 34-8-4.1