Ill. Admin. Code tit. 35, § 807.506
a) An operator of a waste management site shall initiate the treatment, removal from the site or disposal of all wastes and waste residues other than those from indefinite storage units:
b) The operator of an indefinite storage unit shall, within 30 days after receipt of a final volume of waste, either initiate:
(Source: Amended at 9 Ill. Reg. 18942, effective November 25, 1985)