Ind. Admin. Code tit. 326, r. 7-4-11.1 – Morgan County sulfur dioxide emission limitations

Sec. 11.1. (a) On and after January 1, 2017, sources and emission units located in Morgan County shall comply with the sulfur dioxide emission limits and other requirements, as follows:

	Source	Emission Unit Description	Emission Limit or Other Requirements
(1)	Indianapolis Power & Light Company (IPL) - Eagle Valley Generating Station Source ID No. 00004	(A) Combined Cycle Combustion Turbine 1 including duct burners	Burn natural gas
	(B) Combined Cycle Combustion Turbine 2 including duct burners	Burn natural gas
	(C) Auxiliary Boiler	Burn natural gas
	(D) Dew Point Heater	Burn natural gas
(2)	Hydraulic Press Brick Company (HPB) Source ID No. 00007	(A) Kiln 3	Do not operate
	(B) Kiln 4	Minimum control efficiency of 50% or 2.5 lbs/MMBtu, whichever is less stringent	6.0
	(C) Kiln 5	Minimum control efficiency of 50% or 2.5 lbs/MMBtu, whichever is less stringent	6.0

(b) HPB shall comply with the sulfur dioxide emission limits in subsection (a)(2) as follows:

(1) The emission limit applies to sulfur dioxide emissions from both the combustion of coal and the processing of shale.
(2) Monthly fuel sampling and analysis data shall be collected according to 326 IAC 7-2-1 for both coal and shale.
(3) HPB shall install and operate a limestone injection system to control sulfur dioxide emissions from Kiln 4 and Kiln 5.
(4) Compliance with the control efficiency limit in subsection (a)(2) shall be based on measured sulfur content in the shale and fuel compared to the outlet SO2 concentration determined by a stack test pursuant to 326 IAC 3-6. The shale and fuel sulfur content measurements for this purpose shall reflect a representative sample of the material fed into the kiln during each run of the stack test.

(Air Pollution Control Division; 326 IAC 7-4-11.1; filed Sep 2, 2015, 1:50 p.m.: 20150930-IR-326110356FRA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)