Section 326IAC6-2-4. Emission limitations for facilities specified in 326 IAC 6-2-1(d)

   (a) Particulate emissions from indirect heating facilities constructed after September 21, 1983 shall be limited by the following equation:

Where:	Pt	=	Pounds of particulate matter emitted per million Btu (lb/mmBtu) heat input.
	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 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.

  For Q less than 10 mmBtu/hr, Pt shall not exceed 0.6. For Q greater than or equal to 10,000 mmBtu/hr, Pt shall not exceed 0.1. Figure 2 may be used to estimate allowable emissions.

  (b) As each new indirect heating facility is added to a plant Q will increase. As a result, the emission limitation for each progressively newer facility will be more stringent until the total plant capacity reaches 10,000 mmBtu/hr after which the emission limit for each newer facility will be 0.1 lb/mmBtu heat input. The rated capacities for facilities regulated by 326 IAC 12, New Source Performance Standards, shall be included when calculating Q for subsequent facilities.

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(Air Pollution Control Division; 326 IAC 6-2-4; filed Mar 10, 1988, 1:20 p.m.: 11 IR 2495; errata filed Feb 9, 1999, 4:05 p.m.: 22 IR 2006; readopted filed Jan 10, 2001, 3:20 p.m.: 24 IR 1477)