In addition to performing the waste analysis required by Section 725.113, whenever a tank system is to be used to chemically treat or to store a hazardous waste that is substantially different from waste previously treated or stored in that tank system, or to treat chemically a hazardous waste with a substantially different process than any previously used in that tank system, the owner or operator must do the following:
Ill. Admin. Code tit. 35, § 725.300
Amended at 29 Ill. Reg. 6389, effective April 22, 2005