35 Ill. Adm. Code 811.313
Intermediate Cover
Section 811
Section 811.313 Intermediate
Cover
a) All waste which is not to be covered within 60 days of
placement by another lift of waste or final cover in accordance with Section
811.314 shall have a cover equivalent to that provided by 0.30 meter (1 foot)
of compacted clean soil material.
b) All areas with intermediate cover shall be graded so as to
facilitate drainage of runoff and minimize infiltration and standing water.
c) The grade and thickness of intermediate cover shall be
maintained until the placement of additional wastes or the final cover. All
cracks, rills, gullies and depressions shall be repaired to prevent access to
the solid waste by vectors, to minimize infiltration and to prevent standing
water.