(A) At closure, the owner or operator must remove or decontaminate all waste residues, contaminated containment system components (liners, etc.), contaminated subsoils, and structures and equipment contaminated with waste and leachate, and manage them as hazardous waste unless paragraph (D) of rule 3745-51-03 of the Administrative Code applies.
(B) If, after removing or decontaminating all residues and making all reasonable efforts to effect removal or decontamination of contaminated components, subsoils, structures, and equipment as required in paragraph (A) of this rule, the owner or operator finds that not all contaminated subsoils can be practicably removed or decontaminated, he must close the facility and perform post-closure care in accordance with rule 3745-57-10 of the Administrative Code.
(C) (1) The owner or operator of a waste pile that does not comply with the liner requirements of paragraph (A)(1) of rule 3745-56-51 of the Administrative Code and is not exempt from them in accordance with paragraph (C) of rule 3745-56-50 of the Administrative Code or paragraph (B) of rule 3745-56-51 of the Administrative Code must:
(a) Include in the closure plan for the pile in accordance with rule 3745-55-12 of the Administrative Code both a plan for complying with paragraph (A) of this rule and a contingent plan for complying with paragraph (B) of this rule in case not all contaminated subsoils can be practicably removed at closure; and
(b) Prepare a contingent post-closure plan in accordance with rule 3745-55-18 of the Administrative Code for complying with paragraph (B) of this rule in case not all contaminated subsoils can be practicably removed at closure.
(2) The cost estimates calculated in accordance with rules 3745-55-42 and 3745-55-44 of the Administrative Code for closure and post-closure care of a pile subject to this paragraph must include the cost of complying with the contingent closure plan and the contingent post-closure plan, but are not required to include the cost of expected closure under paragraph (A) of this rule.
Rule promulgated under: RC Chapter 119.
Rule amplifies: RC 3734.12