Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11; IC 13-17-3-12

Affected: IC 13-15; IC 13-17

Sec. 2. (a) Sulfur dioxide emissions from fuel combustion emissions units shall be limited as follows, unless specified otherwise in 326 IAC 7-4, 326 IAC 7-4.1, or in a construction permit issued under 326 IAC 2:

1. (1) Six and zero-tenths (6.0) pounds per million British thermal units (MMBtu) for coal combustion.
2. (2) One and six-tenths (1.6) pounds per MMBtu for residual oil combustion.
3. (3) Five-tenths (0.5) pound per MMBtu for distillate oil combustion.

(b) For emissions units combusting coal and oil simultaneously, the sulfur dioxide emission limitation shall be six and zero-tenths (6.0) pounds per MMBtu. For emissions units combusting oil and any fuel other than coal simultaneously, the sulfur dioxide emission limitation shall be the limitation specified in subsection (a)(2) or (a)(3), depending on the type of oil combusted. For the purposes of this subsection, simultaneous combustion of coal and oil shall include those periods of startup, shutdown, and flame stabilization required under normal operations.

(Air Pollution Control Division; 326 IAC 7-1.1-2; filed Aug 28, 1990, 4:50 p.m.: 14 IR 52; filed Apr 22, 1997, 2:00 p.m.: 20 IR 2369; filed Dec 20, 2001, 4:30 p.m.: 25 IR 1600; filed May 25, 2005, 10:50 a.m.: 28 IR 2953; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)