- a) Incompatible wastes or incompatible wastes and materials must not be placed in the same tank system, unless Section 725.117(b) is complied with.
- b) Hazardous waste must not be placed in a tank system that has not been decontaminated and which previously held an incompatible waste or material unless Section 725.117(b) is complied with.
(Source: Amended at 29 Ill. Reg. 6389, effective April 22, 2005)