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

Affected: IC 13-15; IC 13-17

Sec. 1. (a) This rule applies to any of the following:

1. (1) A Portland cement kiln with process rates equal to or greater than the following:

   1. (A) For long dry kilns, twelve (12) tons per hour (tph).
   2. (B) For long wet kilns, ten (10) tph.
   3. (C) For preheater kilns, sixteen (16) tph.
   4. (D) For precalciner and combined preheater and precalciner kilns, twenty-two (22) tph.

2. (2) The following affected boilers:

   	Source	Point ID	Unit
   	(A) ArcelorMittal Burns Harbor	075	Boiler #7
   		076	Boiler #8
   		077	Boiler #9
   		078	Boiler #10
   		079	Boiler #11
   		080	Boiler #12
   	(B) ArcelorMittal Indiana Harbor	020	Boiler #4
   		021	Boiler #5
   		022	Boiler #6
   		023	Boiler #7
   		024	Boiler #8

3. (3) Any other blast furnace gas-fired boiler defined as a large affected unit under 326 IAC 10-2- 2(c)(11).

(b) A unit subject to this rule and a New Source Performance Standard, a National Emission Standard for Hazardous Air Pollutants, or an emission limit established under 326 IAC 2 must comply with the limitations and requirements of the more stringent rule. For a unit subject to this rule and 326 IAC 10-1, compliance with the emission limits in section 3(a)(1)(A) of this rule during the ozone control period is deemed to be compliance with the emission limits in 326 IAC 10-1-4(b)(1) during the ozone control period, and the limits supersede those in 326 IAC 10-1-4(b)(1) during the ozone control period.

(c) The requirements of this rule apply to the specific units subject to this rule during startup and shutdown periods and periods of malfunction.

(d) During periods of blast furnace reline, startup, and periods of malfunction, the affected boilers are not required to meet the requirement of greater than fifty percent (50%) of the heat input from blast furnace gas.

(Air Pollution Control Division; 326 IAC 10-3- 1; filed Aug 17, 2001, 3:45 p.m.: 25 IR 14; errata filed Nov 29, 2001, 12:20 p.m.: 25 IR 1183; filed Jul 7, 2003, 4:00 p.m.: 26 IR 3550; filed Jan 26, 2007, 10:25 a.m.: 20070221-IR-326050117FRA; filed Jul 27, 2018, 2:25 p.m.: 20180822-IR-326150414FRA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)