35 Ill. Adm. Code 724.703
Post-Closure Care
Section 724
Section 724.703Â Post-Closure
Care
A miscellaneous unit that is a
disposal unit must be maintained in a manner that complies with Section 724.701
during the post-closure care period. In addition, if a treatment or storage
unit has contaminated soils or groundwater that cannot be completely removed or
decontaminated during closure, then that unit must also meet the requirements
of Section 724.701 during post-closure care. The post-closure plan under
Section 724.218 must specify the procedure that will be used to satisfy this
requirement.