Current through Register Vol. 48, No. 38, September 20, 2024
Every owner or operator of an emission unit subject to this
Subpart shall comply with the requirements of subsection (a), (b), (c), (d), or
(e) below.
a) Emission capture and
control equipment which achieves an overall reduction in uncontrolled VOM
emissions of at least 81 percent from each emission unit, or
(Board Note: For the purpose of this provision, an emission
unit is any part or activity at a source of a type that by itself is subject to
control requirements in other Subparts of this Part or 40 CFR 60, incorporated
by reference in Section
218.112,
e.g., a coating line, a printing line, a process unit, a wastewater system, or
other equipment, or is otherwise any part or activity at a source.)
b) For coating lines, the
daily-weighted average VOM content shall not exceed 0.42 kg VOM/l (3.5 lbs
VOM/gal) of coating (minus water and any compounds which are specifically
exempted from the definition of VOM) as applied during any day. Owners and
operators complying with this Section are not required to comply with Section
218.301
of this Part, or
c) An equivalent
alternative control plan which has been approved by the Agency and the USEPA in
federally enforceable permit or as a SIP revision.
d) Non-contact process water cooling towers
which are subject to the control requirements of this Subpart shall comply with
the following control measures no later than March 15, 1995 or upon initial
start-up:
1) The owner or operator of a
non-contact process water cooling tower shall perform the following actions to
control emissions of volatile organic material (VOM) from such a tower:
A) Inspect and monitor such tower to identify
leaks of VOM into the water, as further specified in subsection (d)(3)
below;
B) When a leak is
identified, initiate and carry out steps to identify the specific leaking
component or components as soon as practicable, as further specified in
subsection (d)(4) below.
C) When a
leaking component is identified which:
i) Can
be removed from service without disrupting production, remove the component
from service;
ii) Cannot be removed
from service without disrupting production, undertake repair of the component
at the next reasonable opportunity to do so including any period when the
component is out of service for scheduled maintenance, as further specified in
subsection (d)(4) below;
D) Maintain records of inspection and
monitoring activities, identification of leaks and leaking components,
elimination and repair of leaks, and operation of equipment as related to these
activities, as further specified in subsection (d)(5) below.
2) A VOM leak shall be considered
to exist in a non-contact process water cooling water system if the VOM
emissions or VOM content exceed background levels as determined by monitoring
conducted in accordance with subsection (d)(3)(A) below.
3) The owner or operator of an non-contact
process water cooling tower shall carry out an inspection and monitoring
program to identify VOM leaks in the cooling water system.
A) The owner or operator of a non-contact
process water cooling tower shall submit to the Agency a proposed monitoring
program, accompanied by technical justification for the program, including
justification for the sampling location(s), parameter(s) selected for
measurement, monitoring and inspection frequency, and the criteria used
relative to the monitored parameters to determine whether a leak exists as
specified in subsection (d)(2) above.
B) This inspection and monitoring program for
non-contact process water cooling towers shall include, but shall not be
limited to:
i) Monitoring of each such tower
with a water flow rate of 25,000 gallons per minute or more at a petroleum
refinery at least weekly and monitoring of other towers at least
monthly;
ii) Inspection of each
such tower at least weekly if monitoring is not performed at least
weekly.
C) This
inspection and monitoring program shall be carried out in accordance with
written procedures which the Agency shall specify as a condition in a federally
enforceable operating permit. These procedures shall include the VOM background
levels for the cooling tower as established by the owner or operator through
monitoring; describe the locations at which samples will be taken; identify the
parameter(s) to be measured, the frequency of measurements, and the procedures
for monitoring each such tower, that is, taking of samples and other subsequent
handling and analyzing of samples; provide the criteria used to determine that
a leak exists as specified in subsection (d)(2) above; and describe the records
which will be maintained.
D) A
non-contact process water cooling tower is exempt from the requirements of
subsections (d)(3)(B) and (d)(3)(C) above if all equipment where leaks of VOM
into cooling water may occur is operated at a minimum pressure in the cooling
water of at least 35 kPa greater than the maximum pressure in the process
fluid.
4) The repair of
a leak in a non-contact process water cooling tower shall be considered to be
completed in an acceptable manner as follows:
A) Efforts to identify and locate the leaking
components are initiated as soon as practicable, but in no event later than
three days after detection of the leak in the cooling water tower;
B) Leaking components shall be repaired or
removed from service as soon as possible, but no later than 30 days after the
leak in the cooling water tower is detected, unless the leaking components
cannot be repaired until the next scheduled shutdown for maintenance.
5) The owner or operator of a
non-contact process water cooling tower shall keep records as set forth below
in this subsection. These records shall be retained at a readily accessible
location at the source and shall be available for inspection and copying by the
Agency for at least 3 years:
A) Records of
inspection and monitoring activity;
B) Records of each leak identified in such
tower, with date, time and nature of observation or measured level of
parameter;
C) Records of activity
to identify leaking components, with date initiated, summary of components
inspected with dates, and method of inspection and observations;
D) Records of activity to remove a leaking
component from service or repair a leaking component, with date initiated and
completed, description of actions taken and the basis for determining the leak
in such tower has been eliminated. If the leaking component is not identified,
repaired or eliminated within 30 days of initial identification of a leak in
such tower, this report shall include specific reasons why the leak could not
be eliminated sooner including all other intervening periods when the process
unit was out of service, actions taken to minimize VOM losses prior to
elimination of the leak and any actions taken to prevent the recurrence of a
leak of this type.
6)
The owner or operator of a non-contact process water cooling tower shall submit
an annual report to the Agency which provides:
A) The number of leaks identified in each
cooling tower;
B) A general
description of activity to repair or eliminate leaks which were
identified;
C) Identification of
each leak which was not repaired in 30 days from the date of identification of
a leak in such a tower, with description of the leaks, explanation why the leak
was not repaired in 30 days;
D)
Identification of any periods when required inspection and monitoring
activities were not carried out.
e) Any leaks from components subject to the
control requirements of this Subpart shall be subject to the following control
measures by March 15, 1995:
1) Repair any
component from which a leak of VOL can be observed. The repair shall be
completed as soon as practicable but no later than 15 days after the leak is
found, unless the leaking component cannot be repaired until the next process
unit shutdown, in which case the leaking component must be repaired before the
unit is restarted.
2) For any leak
which cannot be readily repaired within one hour after detection, the following
records, as set forth below in this subsection, shall be kept. These records
shall be maintained by the owner or operator for a minimum of two years after
the date on which they are made. Copies of the records shall be made available
to the Agency or USEPA upon verbal or written request.
A) The name and identification of the leaking
component;
B) The date and time the
leak is detected;
C) The action
taken to repair the leak; and
D)
The date and time the leak is repaired.