Mich. Admin. Code R. 299.4420 - Type II landfill design standards; municipal solid waste incinerator ash landfills
Rule 420.
(1) A
new unit and a lateral extension of an existing unit at a type II landfill unit
that accepts municipal solid waste incinerator ash shall be designed and
constructed in accordance with section 11542 of the act, except that a
municipal incinerator ash landfill that is an unmonitorable unit shall have a
secondary leachate collection system and a flexible membrane liner as part of
the secondary liner system.
(2) An
existing unit, new unit, and lateral extension of an existing unit at a
landfill that accepts municipal solid waste incinerator ash shall be closed
with a final cover that is in compliance with section 11542 of the act. Grades
of the final cover shall be in compliance with R 299.4425.
(3) An owner and operator of a new unit and a
lateral extension of an existing unit at a municipal solid waste incinerator
ash landfill shall ensure that all of the following requirements are complied
with:
(a) Leachate collection systems that are
required by section 11542 of the act are in compliance with R
299.4423.
(b) Secondary leachate
collection or leak detection systems that are required by section 11542 of the
act are in compliance with R 299.4424.
(c) Compacted clay liners that are required
by section 11542 of the act are in compliance with R 299.4913.
(d) Flexible membrane liners that are
required by section 11542 of the act are in compliance with R
299.4915.
(4) The
director shall approve a process to substantially diminish the toxicity of
municipal solid waste incinerator ash or the leachability of the ash, instead
of disposal that is required under section 11542(1) of the act, if the
applicant for such a process demonstrates all of the following:
(a) That, during storage or processing, ash
will be contained within a tank, container, or waste pile that is in compliance
with R 299.4130.
(b) The process
does not in any way dilute ash constituents as a substitute for adequate
treatment.
(c) The process does not
create a nuisance.
(d) The process
will not produce fugitive dust or other emissions in violation of part 55 of
the act.
(e) The waste is tested
after processing in accordance with the testing protocol of subrule (5) of this
rule.
(5) Municipal
solid waste incinerator ash that is processed under section 11542 of the act
shall be tested in accordance with the protocol specified in R 299.4118a on a
frequency that is adequate to ensure that the criteria specified in subrules
(6) and (7) of this rule are met. The applicant shall propose a leaching
procedure to simulate native conditions in addition to the leaching procedure
specified in R 299.4118a.
(6) The
director shall approve processed municipal solid waste incinerator ash for
recycling or reuse if the processed ash is in compliance with the criteria for
inert material that are specified in section 11504(2).
(7) The director shall approve processed
municipal solid waste incinerator ash for disposal in a type II landfill if the
processed ash is in compliance with both of the following provisions:
(a) The ash does not leach constituents in
concentrations greater than the toxicity characteristic specified in R 299.9217
based on leaching tests under both acidic and native conditions.
(b) Does not cause any emission that results
in a violation of part 55 of the act or otherwise causes unacceptable risks to
human health or the environment.
Notes
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