Current through Register Vol. 48, No. 9, September 27, 2024
Except as otherwise provided by 264.1 of this chapter,
owners and operators of hazardous waste treatment, storage, or disposal
facilities that collect, store, or treat hazardous waste on drip pads must
provide the following additional information:
(a) A list of hazardous wastes placed or to
be placed on each drip pad.
(b) If
an exemption is sought to subpart F of part 264 of this chapter, as provided by
264.90 of this chapter, detailed plans and an engineering report describing how
the requirements of 264.90(b)(2) of this chapter will be met.
(c) Detailed plans and an engineering report
describing how the drip pad is or will be designed, constructed, operated and
maintained to meet the requirements of 264.573 of this chapter, including the
as-built drawings and specifications. This submission must address the
following items as specified in 264.571 of this chapter:
(1) The design characteristics of the drip
pad;
(2) The liner
system;
(3) The leakage detection
system, including the leak detection system and how it is designed to detect
the failure of the drip pad or the presence of any releases of hazardous waste
or accumulated liquid at the earliest practicable time;
(4) Practices designed to maintain drip
pads;
(5) The associated collection
system;
(6) Control of run on to
the drip pad;
(7) Control of runoff
from the drip pad;
(8) The interval
at which drippage and other materials will be removed from the associated
collection system and a statement demonstrating that the interval will be
sufficient to prevent overflow onto the drip pad;
(9) Procedures for cleaning the drip pad at
least once every seven days to ensure the removal of any accumulated residues
of waste or other materials, including but not limited to rinsing, washing with
detergents or other appropriate solvents, or steam cleaning and provisions for
documenting the date, time, and cleaning procedure used each time the pad is
cleaned.
(10) Operating practices
and procedures that will be followed to ensure that tracking of hazardous waste
or waste constituents off the drip pad due to activities by personnel or
equipment is minimized;
(11)
Procedures for ensuring that, after removal from the treatment vessel, treated
wood from pressure and nonpressure processes is held on the drip pad until
drippage has ceased, including recordkeeping practices;
(12) Provisions for ensuring that collection
and holding units associated with the run on and runoff control systems are
emptied or otherwise managed as soon as possible after storms to maintain
design capacity of the system;
(13)
If treatment is carried out on the drip pad, details of the process equipment
used, and the nature and quality of the residuals.
(14) A description of how each drip pad,
including appurtenances for control of run on and runoff, will be inspected in
order to meet the requirements of 264.573 of this chapter. This information
should be included in the inspection plan submitted under 270.14(b)(5) of this
part.
(15) A certification signed
by a qualified Professional Engineer, stating that the drip pad design meets
the requirements of paragraphs (a) through (f) of section 264.573.
(16) A description of how hazardous waste
residues and contaminated materials will be removed from the drip pad at
closure, as required under 264.575(a) of this chapter. For any waste not to be
removed from the drip pad upon closure, the owner or operator must submit
detailed plans and an engineering report describing how 264.310 (a) and (b) of
this chapter will be complied with. This information should be included in the
closure plan and, where applicable, the postclosure plan submitted under
270.14(b)(13).
