35 Ill. Adm. Code 807.305
Cover
Section 807
Section 807.305 Cover
Unless otherwise specifically
provided by permit, the following cover requirements shall be followed:
a) Daily Cover – a compacted layer of at least 6 inches of
suitable material shall be placed on all exposed refuse at the end of each day
of operation.
b) Intermediate Cover – at the end of each day of operation, in
all but the final lift of a sanitary landfill, a compacted layer of at least 12
inches of suitable material shall be placed on all surfaces of the landfill
where no additional refuse will be deposited within 60 days.
c) Final Cover – a compacted layer of not less than two feet of
suitable material shall be placed over the entire surface of each portion of
the final lift not later than 60 days following the placement of refuse in the
final lift, unless a different schedule has been authorized in the Operating
Permit.