1. a) The operator of a waste disposal site shall implement the post-closure care plan commencing with receipt of a certification of closure pursuant to Section 807.508.
2. b) The operator of an indefinite storage unit shall implement the contingent post-closure care plan commencing with receipt of certification of closure pursuant to the contingent closure plan. The operator is not required to implement the contingent post-closure care plan if the Agency determines that the operator has removed all wastes and waste residues from the indefinite storage unit.

3. c) The Agency shall certify that the post-closure care period has ended when it determines:

   1. 1) That the post-closure care plan has been completed; and,
   2. 2) That the site will not cause future violations of the Act or this Part.

(Source: Amended at 9 Ill. Reg. 18942, effective November 25, 1985)