SDCL § 9-55-17: Limitations on amount of assessments or taxes.

The total amount of special assessments or general business occupation taxes levied under this chapter may not exceed the total costs and expenses of the projects authorized in the resolution of intent for such district. The levy of any additional special assessment or occupation tax may not reduce or affect in any manner the assessments previously levied. The special assessments or occupation taxes levied shall be for the purposes specified in the resolution of intent for each district and the proceeds may not be used for any other purpose.