S.D. Codified Laws § 46-2A-12
Current with legislation signed by the governor on or before 3/6/2024
An amendment of an existing permit or license may be granted for a change in use, a change in point of diversion or other change only if the change does not unlawfully impair existing rights and is for a beneficial use and in the public interest.
SDCL 46-2A-12