Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 724 - STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES
Subpart CC - AIR EMISSION STANDARDS FOR TANKS, SURFACE IMPOUNDMENTS, AND CONTAINERS
Section 724.987 - Standards: Closed-Vent Systems and Control Devices
Universal Citation: 35 IL Admin Code ยง 724.987
Current through Register Vol. 48, No. 38, September 20, 2024
a) This Section applies to each closed-vent system and control device installed and operated by the owner or operator to control air emissions in accordance with standards of this Subpart CC.
b) The closed-vent system must meet the following requirements:
1) The
closed-vent system must route the gases, vapors, and fumes emitted from the
hazardous waste in the waste management unit to a control device that meets the
requirements specified in subsection (c).
2) The closed-vent system must be designed
and operated in accordance with the requirements specified in Section
724.933(k).
3) When the closed-vent system includes
bypass devices that could be used to divert the gas or vapor stream to the
atmosphere before entering the control device, each bypass device must be
equipped with either a flow indicator, as specified in subsection (b)(3)(A), or
a seal or locking device, as specified in subsection (b)(3)(B). For the purpose
of complying with this subsection (b), low leg drains, high point bleeds,
analyzer vents, open-ended valves or lines, spring-loaded pressure-relief
valves, and other fittings used for safety purposes are not considered to be
bypass devices.
A) If a flow indicator is
used to comply with this subsection (b)(3), the indicator must be installed at
the inlet to the bypass line used to divert gases and vapors from the
closed-vent system to the atmosphere at a point upstream of the control device
inlet. For the purposes of this subsection (b), a flow indicator means a device
that indicates the presence of either gas or vapor flow in the bypass
line.
B) If a seal or locking
device is used to comply with subsection (b)(3), the device must be placed on
the mechanism by which the bypass device position is controlled (e.g., valve
handle or damper lever) when the bypass device is in the closed position such
that the bypass device cannot be opened without breaking the seal or removing
the lock. Examples of such devices include, but are not limited to, a car-seal
or a lock-and-key configuration valve. The owner or operator must visually
inspect the seal or closure mechanism at least once every month to verify that
the bypass mechanism is maintained in the closed position.
4) The closed-vent system must be inspected
and monitored by the owner or operator in accordance with the procedure
specified in Section
724.933(l).
c) The control device must meet the following requirements:
1) The control device must be
one of the following devices:
A) A control
device designed and operated to reduce the total organic content of the inlet
vapor stream vented to the control device by at least 95 percent by
weight;
B) An enclosed combustion
device designed and operated in accordance with the requirements of Section
724.933(c);
or
C) A flare designed and operated
in accordance with the requirements of Section
724.933(d).
2) The owner or operator that elects to use a
closed-vent system and control device to comply with the requirements of this
Section must comply with the requirements specified in subsections (c)(2)(A)
through (c)(2)(F).
A) Periods of planned
routine maintenance of the control device, during which the control device does
not meet the specifications of subsection (c)(1)(A), (c)(1)(B), or (c)(1)(C),
as applicable, must not exceed 240 hours per year.
B) The specifications and requirements in
subsections (c)(1)(A), (c)(1)(B), and (c)(1)(C) for control devices do not
apply during periods of planned routine maintenance.
C) The specifications and requirements in
subsections (c)(1)(A), (c)(1)(B), and (c)(1)(C) for control devices do not
apply during a control device system malfunction.
D) The owner or operator must demonstrate
compliance with the requirements of subsection (c)(2)(A) (i.e., planned routine
maintenance of a control device, during which the control device does not meet
the specifications of subsection (c)(1)(A), (c)(1)(B), or (c)(1)(C), as
applicable, must not exceed 240 hours per year) by recording the information
specified in Section
724.989(e)(1)(E).
E) The owner or operator must correct control
device system malfunctions as soon as practicable after their occurrence in
order to minimize excess emissions of air pollutants.
F) The owner or operator must operate the
closed-vent system so that gases, vapors, or fumes are not actively vented to
the control device during periods of planned maintenance or control device
system malfunction (i.e., periods when the control device is not operating or
not operating normally), except in cases when it is necessary to vent the
gases, vapors, or fumes to avoid an unsafe condition or to implement
malfunction corrective actions or planned maintenance actions.
3) The owner or operator using a
carbon adsorption system to comply with subsection (c)(1) must operate and
maintain the control device in accordance with the following requirements:
A) Following the initial startup of the
control device, all activated carbon in the control device must be replaced
with fresh carbon on a regular basis, in accordance with the requirements of
Section
724.933(g)
or Section
724.933(h).
B) All carbon that is a hazardous waste and
that is removed from the control device must be managed in accordance with the
requirements of Section
724.933(n),
regardless of the average volatile organic concentration of the
carbon.
4) An owner or
operator using a control device other than a thermal vapor incinerator, flare,
boiler, process heater, condenser, or carbon adsorption system to comply with
subsection (c)(1) must operate and maintain the control device in accordance
with the requirements of Section
724.933(j).
5) The owner or operator must demonstrate
that a control device achieves the performance requirements of subsection
(c)(1), as follows:
A) An owner or operator
must demonstrate using either a performance test, as specified in subsection
(c)(5)(C), or a design analysis, as specified in subsection (c)(5)(D), the
performance of each control device, except for the following:
i) A flare;
ii) A boiler or process heater with a design
heat input capacity of 44 megawatts or greater;
iii) A boiler or process heater into which
the vent stream is introduced with the primary fuel;
iv) A boiler or industrial furnace burning
hazardous waste for which the owner or operator has been issued a final permit
under 35 Ill. Adm. Code 702, 703, and 705 and has designed and operates the
unit in accordance with the interim status requirements of Subpart H of 35 Ill.
Adm. Code 726; or
v) A boiler or
industrial furnace burning hazardous waste that the owner or operator has
designed and operates in accordance with the interim status requirements of
Subpart H of 35 Ill. Adm. Code 726.
B) An owner or operator must demonstrate the
performance of each flare in accordance with the requirements specified in
Section
724.933(e).
C) For a performance test conducted to meet
the requirements of subsection (c)(5)(A), the owner or operator must use the
test methods and procedures specified in Section
724.934(c)(1) through
(c)(4).
D) For a design analysis conducted to meet
the requirements of subsection (c)(5)(A), the design analysis must meet the
requirements specified in Section
724.935(b)(4)(C).
E) The owner or operator must demonstrate
that a carbon adsorption system achieves the performance requirements of
subsection (c)(1) based on the total quantity of organics vented to the
atmosphere from all carbon adsorption system equipment that is used for organic
adsorption, organic desorption or carbon regeneration, organic recovery, and
carbon disposal.
6) If
the owner or operator and the Agency do not agree on a demonstration of control
device performance using a design analysis then the disagreement must be
resolved using the results of a performance test performed by the owner or
operator in accordance with the requirements of subsection (c)(5)(C). The
Agency may choose to have an authorized representative observe the performance
test.
7) The closed-vent system and
control device must be inspected and monitored by the owner or operator in
accordance with the procedures specified in Section
724.933(f)(2)
and (l). The readings from each monitoring
device required by Section
724.933(f)(2)
must be inspected at least once each operating day to check control device
operation. Any necessary corrective measures must be immediately implemented to
ensure the control device is operated in compliance with the requirementsof
this Section.
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