At closure the owner or operator must remove all hazardous waste and hazardous waste residues (including, but not limited to, ash, scrubber waters, and scrubber sludges) from the incinerator site.
Comment: At closure, as throughout the operating period, unless the owner or operator can demonstrate, in accordance with 261.3(d) of this chapter, that the residue removed from the incinerator is not a hazardous waste, the owner or operator becomes a generator of hazardous waste and must manage it in accordance with applicable requirements of parts 262 through 266.
S.C. Code Regs. § 61-79.264.O.351