1. a) An operator of a waste management site shall have prepared a written closure plan which shall be a condition of the site permit.
2. b) The operator of an indefinite storage unit shall have prepared a written contingent closure plan which shall be a condition of the site permit. The contingent closure plan shall be the same as a closure plan, except as otherwise specifically provided.

3. c) The closure plan shall include as a minimum:

   1. 1) Steps necessary for the premature final closure of the site at the time during its intended operating life when the cost of closure will be the greatest;
   2. 2) Steps necessary for the final closure of the site at the end of its intended operating life;
   3. 3) Steps necessary to prevent damage to the environment during temporary suspension of waste acceptance if the operator wants a permit which would allow temporary suspension of waste acceptance at the site without initiating final closure;
   4. 4) A description of the steps necessary to decontaminate equipment during closure;
   5. 5) An estimate of the year in which the cost of premature closure will be the greatest;
   6. 6) An estimate of the expected year of closure;

   7. 7) Schedules for the premature and final closure which shall include at a minimum:

      1. A) Total time required to close the site; and
      2. B) Time required for closure activities which will allow tracking of the progress of closure; and
   8. 8) A description of methods for compliance with all closure requirements of this Part.
4. d) The closure plan shall be included in the permit application pursuant to Section 807.205.
5. e) Until closure has been completed, the operator shall maintain a copy of the closure plan at the site or at a definite location, specified in the permit, so as to be available during inspection of the site.

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