Ohio Administrative Code
Title 3745 - Ohio Environmental Protection Agency
Chapter 3745-67 - Surface Impoundments
Section 3745-67-28 - Closure and post closure care
Universal Citation: OH Admin Code 3745-67-28
Current through all regulations passed and filed through March 18, 2024
(A) At closure, the owner or operator must:
(1) Remove or decontaminate all waste
residues, contaminated waste containment system components (liners, etc.),
contaminated subsoils, and structures and equipment contaminated with waste and
leachate, and manage them as hazardous waste unless paragraph (D) of rule
3745-51-03
of the Administrative Code applies; or
(2) Close the impoundment and provide
post-closure care for a landfill under rules
3745-66-10
to
3745-66-21
and
3745-68-10
of the Administrative Code including the following:
(a) Eliminate free liquids by removing liquid
wastes or solidifying the remaining wastes and waste residues;
(b) Stabilize remaining wastes to a bearing
capacity sufficient to support the final cover; and
(c) Cover the surface impoundment with a
final cover designed and constructed to:
(i)
Provide long-term minimization of the migration of liquids through the closed
impoundment;
(ii) Function with
minimum maintenance;
(iii) Promote
drainage and minimize erosion or abrasion of the cover;
(iv) Accommodate settling and subsidence so
that the cover's integrity is maintained; and
(v) Have a permeability less than or equal to
the permeability of any bottom liner system or natural subsoils present.
(B) In addition to the requirements of rules 3745-66-10 to 3745-66-21 and 3745-68-10 of the Administrative Code, during the post-closure care period, the owner or operator of a surface impoundment in which wastes, waste residues, or contaminated materials remain after closure in accordance with the provisions of paragraph (A)(2) of this rule must:
(1)
Maintain the integrity and effectiveness of the final cover, including making
repairs to the cover as necessary to correct the effects of settling,
subsidence, erosion, or other events;
(2) Maintain and monitor the leak detection
system in accordance with paragraphs(C)(2)(d) and (C)(3) of rule
3745-56-21 of the Administrative Code and paragraph
(B) of rule
3745-67-26
of the Administrative Code and comply with all other applicable leak detection
system requirements of Chapters 3745-65 to 3745-69 and 3745-256 of the
Administrative Code.
(3) Maintain
and monitor the ground water monitoring system and comply with all other
applicable requirements of rules
3745-65-90
to
3745-65-94
of the Administrative Code; and
(4)
Prevent run-on and run-off from eroding or otherwise damaging the final
cover.
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