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

Affected: IC 13-15; IC 13-17

Sec. 9. (a) Ironside Energy, LLC, Source Identification Number 00448, shall comply with the sulfur dioxide emission limits for Utility Boiler No. 9 of two hundred ninety-thousandths (0.290) pound per million British thermal units (MMBtu) and one hundred ninety and fifty-three hundredths (190.53) pounds per hour. Utility Boiler No. 9 shall be fired on blast furnace gas and natural gas only.

(b) Utility Boiler No. 9 in combination with ISG Indiana Harbor Inc. Utility Boilers 5, 6, 7, and 8 are limited to an annual operating limit of five thousand eight hundred seventy-one and sixty-one hundredths (5,871.61) tons per year.

(c) For Utility Boiler No. 9, Ironside Energy, LLC shall:

1. (1) maintain records of the:

   1. (A) total blast furnace gas and natural gas combusted for each day; and
   2. (B) average sulfur content and heating value for each day for each fuel type combusted during the calendar quarter; and
2. (2) submit to the department within thirty (30) days of the end of each calendar quarter the calculated sulfur dioxide emission rate in pounds per MMBtu for each fuel type, the total fuel combusted for each day during the calendar quarter.

(Air Pollution Control Division; 326 IAC 7-4.1-9; filed May 25, 2005, 10:50 a.m.: 28 IR 2957; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)