Ill. Admin. Code tit. 35, § 724.410 - Closure and Post-Closure Care
a) At final closure of the landfill or upon
closure of any cell, the owner or operator must cover the landfill or cell with
a final cover designed and constructed to do the following:
1) Provide long-term minimization of
migration of liquids through the closed landfill;
2) Function with minimum
maintenance;
3) Promote drainage
and minimize erosion or abrasion of the cover;
4) Accommodate settling and subsidence so
that the cover's integrity is maintained; and
5) Have a permeability less than or equal to
the permeability of any bottom liner system or natural subsoils
present.
b) After final
closure, the owner or operator must comply with all post-closure requirements
contained in Sections
724.217
through
724.220,
including maintenance and monitoring throughout the post-closure care period
(specified in the permit under Section 724.217). The owner or operator must do
the following:
1) Maintain the integrity and
effectiveness of the final cover, including making repairs to the cap as
necessary to correct the effects of settling, subsidence, erosion, or other
events;
2) Continue to operate the
leachate collection and removal system until leachate is no longer
detected;
3) Maintain and monitor
the LDS in accordance with Sections
724.401(c)(3)(D)
and (c)(4) and
724.403(c),
and comply with all other applicable LDS requirements of this Part;
4) Maintain and monitor the groundwater
monitoring system and comply with all other applicable requirements of Subpart
F;
5) Prevent run-on and run-off
from eroding or otherwise damaging the final cover; and
6) Protect and maintain surveyed benchmarks
used in complying with Section
724.409.
Notes
Amended at 27 Ill. Reg. 3725, effective February 14, 2003
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