Indiana Administrative Code › Title 326 - AIR POLLUTION CONTROL DIVISION › Article 6 - PARTICULATE RULES › Rule 2 - Particulate Emission Limitations for Sources of Indirect Heating › Section 2-3 - Emission limitations for facilities specified in 326 IAC 6-2-1(c)

Current through July 10, 2024
Authority: IC 13-14-8; IC 13-17-3-11; IC 13-17-3-12
Affected: IC 13-15; IC 13-17
Sec. 3.
(a)
				Particulate emissions from indirect heating facilities existing and in
				operation before September 21, 1983, shall be limited by the following
				equation:
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Where: C = Maximum ground level concentration with respect to
				  distance from the point source at the "critical" wind speed for level terrain.
				  This shall equal 50 micrograms per cubic meter
				  (µ/m3) for a period not to exceed a sixty (60)
				  minute time period.
Pt = Pounds of particulate matter emitted per million Btu
				  heat input (lb/mmBtu).
Q = Total source maximum operating capacity rating in million
				  Btu per hour (mmBtu/hr) heat input. The maximum operating capacity rating is
				  defined as the maximum capacity at which the facility is operated or the
				  nameplate capacity, whichever is specified in the facility's operation permit
				  application, except when some lower capacity is contained in the facility's
				  operation permit; in which case, the capacity specified in the operation permit
				  shall be used.
N = Number of stacks in fuel burning operation.
a = Plume rise factor which is used to make allowance for
				  less than theoretical plume rise. The value 0.67 shall be used for Q less than
				  or equal to 1,000 mmBtu/hr heat input. The value 0.8 shall be used for Q
				  greater than 1,000 mmBtu/hr heat input.
h = Stack height in feet. If a number of stacks of different
				  heights exist, the average stack height to represent "N" stacks shall be
				  calculated by weighing each stack height with its particulate matter emission
				  rate as follows:
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Where: pa = the actual controlled emission rate in lb/mmBtu
				  using the emission factor from AP-42 or stack test data. Stacks constructed
				  after January 1, 1971, shall be credited with GEP stack height only. GEP stack
				  height shall be calculated as specified in 326 IAC 1-7.
(b) The emission limitations for those
				indirect heating facilities which were existing and in operation on or before
				June 8, 1972, shall be calculated using the equation contained in subsection
				(a) of this section where: Q, N, and h shall include the parameters for all
				facilities in operation on June 8, 1972. The resulting Pt is the emission
				limitation for each facility existing on that date and will not be affected by
				the addition of any subsequent facility. The particulate emissions from all of
				the facilities which were in existence on June 8, 1972, may be allocated in any
				way among these facilities provided that they will not result in a
				significantly greater air quality impact level at any receptor than that which
				would result if the particulate emissions from each of these facilities were
				limited to Pt; and provided that the emission limitations for each facility are
				specified in its operation permit. Significant impact levels are defined in 326
				IAC 2-3-2(d).
(c) The emission
				limitations for those indirect heating facilities which began operation after
				June 8, 1972, and before September 21, 1983, and those facilities which receive
				permits to construct prior to September 21, 1983, shall be calculated using the
				equation contained in subsection (a) of this section where: Q, N, and h shall
				include the parameters for the facility in question and for those facilities
				which were previously constructed or received prior permits to construct. The
				limitations for all previously permitted facilities do not change. The Q, N, h,
				and Pt for each facility at a source which begins operation or receives a
				construction permit during this time period will be different.
(d) Particulate emissions from all facilities
				used for indirect heating purposes which were existing and in operation on or
				before June 8, 1972, shall in no case exceed 0.8 lb/mmBtu heat input.
(e) Particulate emissions from any facility
				used for indirect heating purposes which has 250 mmBtu/hr heat input or less
				and which began operation after June 8, 1972, shall in no case exceed 0.6
				lb/mmBtu heat input.