Indiana Administrative Code › Title 326 - AIR POLLUTION CONTROL DIVISION › Article 2 - PERMIT REVIEW RULES › Rule 6 - Emission Reporting › Section 6-2 - Definitions

Current through July 10, 2024
Authority: IC 13-14-8; IC 13-17-3
Affected: IC 13-11-2; IC 13-15; IC 13-17
Sec. 2.
For purposes of this rule, the definition given for a term
				  in this rule shall control in any conflict between
				  326 IAC 1-2 and this
				  rule. In addition to the definitions provided in IC 13-11-2 and
				  326 IAC 1-2, the
				  following definitions apply throughout this rule unless expressly stated
				  otherwise:
(1) "Actual emissions"
				means the emissions in tons per year of any pollutant emitted by an emissions
				unit for the calendar year.
(2)
				"Annual process rate" means the actual or estimated annual fuel, process, or
				solid waste operating rate in a calendar year.
(3) "Ash content" means the inert residual
				portion of a fuel.
(4) "Capture
				efficiency" means the percent of the total emissions captured and routed to the
				air pollution control equipment.
(5) "Control efficiency" means the percent of
				the total emissions routed to the air pollution control equipment that are
				destroyed or captured by the air pollution control equipment. The control
				efficiency includes control equipment downtime and any malfunctions that
				occurred while the emission unit or units are in operation. If the actual
				control efficiency during the calendar year is unknown or cannot reasonably be
				predicted from available data, then the efficiency provided by the manufacturer
				may be used.
(6) "Control equipment
				identification code" means the code provided by the department that defines the
				equipment used to reduce, by destruction or removal, the amount of air
				pollutants in a gas stream prior to discharge to the ambient air. Examples of
				destruction or removal are incineration and carbon adsorption.
(7) "Days per week in operation" means the
				days per week that the emitting process operates averaged over the inventory
				period.
(8) "Design capacity" means
				a measure of the size of a point source based on the reported maximum
				operational capacity of the unit.
(9) "Downtime" means the period of time when
				the air pollution control equipment is not operational and the process it is
				controlling is in operation.
(10)
				"Emission factor" means an estimate of the rate at which a pollutant is
				released to the atmosphere as the result of some activity, divided by the rate
				of that activity, such as production rate or throughput.
(11) "Emissions group" means any combination
				of like emissions units or processes from a single building, adjacent
				buildings, or areas. Like emissions units or processes will contain emission
				units with same or similar emission estimating methods or source classification
				codes.
(12) "Estimated emissions
				method code" means a code provided by the department that identifies the
				estimation technique used in the calculation of estimated emissions.
(13) "Fugitive emissions" has the meaning set
				forth in
				326 IAC
				2-7-1(18).
(14) "Heat content" means the amount of
				thermal heat energy in a solid, liquid, or gaseous fuel.
(15) "Hours per day in operation" means hours
				per day that the emitting process operated averaged over the days in operation
				in the calendar year.
(16) "Maximum
				nameplate capacity" means a measure of a unit's size that the manufacturer puts
				on the unit's nameplate.
(17)
				"Oxides of nitrogen" or "NOx" means all oxides of
				nitrogen, including, but not limited to, nitrogen oxide and nitrogen dioxide,
				but excluding nitrous oxide, collectively expressed as molecular weight of
				nitrogen dioxide.
(18) "Percent
				annual throughput" means the weighted percent of yearly activity for the
				following quarters:
(A) Winter meaning
				December, January, and February of the same year. For example, winter 2004
				would be equal to the sum of the monthly percent activity for January 2004,
				February 2004, and December 2004.
(B) Spring meaning March through May of the
				same calendar year.
(C) Summer
				meaning June through August of the same calendar year.
(D) Fall meaning September through November
				of the same calendar year.