S.D. Codified Laws § 46A-14-41

The managers may appoint or employ an engineer, professional assistants, and such other employees as may be necessary, and provide for their qualification, duties, and compensation, which, with all other expenses may be included as a part of the cost of a project or improvement. The managers may require any officer or employee of the district to give a bond for the faithful performance of his or her duties, in an amount prescribed by the managers. The cost of the bond shall be paid from funds of the district.