35 Ill. Adm. Code 840.128
Closure Plan
Section 840.128 Closure Plan
a) Within 180 days after January 28, 2011, the owner or
operator of Ash Pond D must prepare and submit to the Agency a closure plan for
review and approval.
b) The owner or operator of Ash Pond D must maintain the closure
plan onsite or at a location specified in the closure plan.