(A) Notwithstanding another provision of law, an entity that has contracted for the right to store water in a reservoir owned by the United State Army Corps of Engineers has exclusive rights to any return flows generated directly or indirectly to that reservoir by the entity. The rights conferred by this subsection must be subject to any regulatory requirements imposed by the South Carolina Department of Health and Environmental Control and to the availability to the entity of unused storage capacity within the reservoir to store such return flows.

(B) For purposes of this section, "return flow" means water that is discharged directly or indirectly to a reservoir from a water reclamation facility.