Indiana Administrative Code
Title 326 - AIR POLLUTION CONTROL DIVISION
Article 6 - PARTICULATE RULES
Rule 6 - Source Specific and Facility Emission Limitations for TSP in Porter County
Section 6-2 - Methods to determine compliance
Current through March 20, 2024
Authority: IC 13-1-1-4; IC 13-7-7
Affected: IC 13-1-1-1; IC 13-1-1-4; IC 13-7
Sec. 2.
(a) This section applies to the emission limitations contained in 326 IAC 6-6-4.
(b) All lb/ton (pound per ton) emission factor limits are expressed as "pounds of particulate emissions per ton of product" unless otherwise stated. By-products which may be sold as product shall not be included under the term "product."
(c) All lb/MMBtu (pounds per million Btu) emission factor limits are expressed as "pounds of particulate emissions per million Btu of fuel(s) fired in the source" unless otherwise stated.
(d) Fuel usage data may be used to determine compliance for any non-fossil-fuel-fired source and any fossil fuel-fired source that does not have a gas cleaning device which is used to reduce particulate emissions to the atmosphere, provided that the following procedures are followed:
TABLE 1. Fuel Use Equations
Where: Fl through Fi = the quantities (e.g., million cu. ft.) of each fuel type used in one (1) month.
El through Ei = the emission factors (e.g., lb/million cu.ft.) corresponding to the fuel types used; the most recent emissions factors obtained by the procedures required by subdivision (d)(4) of this section shall be used.
Tt = Total emissions in lbs/hr.
Where: Fl through Fi = the quantities (e.g., million cu.ft.) of each fuel type used in one (1) month.
Hl through Hi = the heat content factors (e.g., BTU/cu.ft.) corresponding to the fuel types used; the most recent heat content factors obtained by the procedures required by subdivision (d)(4) of this section shall be used.
El through Ei = the emission factors (e.g., lb/million cu.ft.) corresponding to the fuel types used; the most recent emissions factors obtained by the procedures required by subdivision (d)(4) of this section shall be used.
Th = Total emissions in lbs/MMBtu.
Once each calendar quarter the owner/operator shall conduct sampling and analysis to determine the sulfur content of No. 6 fuel oil and shall calculate the emission factor for this fuel using the following equation:
(10) S + 3 = EF
Where EF = the particulate emission factor for No. 6 fuel oil (i.e., lb/1,000 gal.)
S = percent sulfur in the fuel, by weight. The sampling and test methodologies used must be approved by the commissioner. The most recent No. 6 fuel oil emission factor obtained using the above procedure shall be used in emission rate calculations. The emission factors used for fuels other than No. 6 fuel oil shall be as follows:
Fuel | Emission Factor |
Natural Gas | 5.0 lbs per MM SCF |
Blast Furnace Gas | 1.5 lbs per MM SCF |
Coke Oven Gas | 6.6 lbs per MM SCF |
Propane | 0.44 lbs per 1,000 gallons |
Waste Oil | 8.8 lbs per 1,000 gallons |
No. 2 Fuel Oil | 2.0 lbs per 1,000 gallons |
TABLE 2. List of Sources Using Fuel Use Data to Determine Compliance with Particulate Emissions Limitations
Blast Furnace Stoves
Blast Furnace Flare
BOF Shop FM Boiler
Slab Mill Soaking Pits (32)
Slab Mill Soaking Pits (4)
Plate Mill Furnace No. 1 and Boiler No. 1
Plate Mill Furnace No. 2 and Boiler No. 3
160 Inch Plate Mill Boiler No. 2
160 Inch Plate Mill Boiler No. 4
160 Inch Plate Mill Furnaces No. 1 and 2
160 Inch Plate Mill In and Out Furnaces No. 4 and 5
160 Inch Plate Mill In and Out Furnaces No. 6 and 7
160 Inch Plate Mill In and Out Furnace No. 8
110 Inch Plate Mill Normalizing Furnace
160 Inch Plate Mill Heat Treating Furnace
80 Inch Hot Strip Mill Furnace No. 1
80 Inch Hot Strip Mill Furnace No. 2
80 Inch Hot Strip Mill Furnace No. 3
Continuous Anneal Furnace
Batch Anneal Furnaces (24)
Continuous Anneal Preheating
Continuous Anneal Heating and Soaking
Continuous Anneal Reheating
Power Station Boiler Nos. 8, 9, 10, 11, and 12
Power Station Boiler No. 7
(e) When required by the commissioner the owner/operator shall make any stack modifications necessary to permit a stack test in accordance with 40 CFR 60, Appendix A, Methods 1-5.
The BOF shop: Nos. 1 and 2 Vessel Scrubber stacks (three (3) stacks) shall be tested once in each four (4) year period.
The sinter plant windbox scrubber stack shall be tested once in each two (2) year period.
The sinter plant dedusting baghouse stack shall be tested once in each two (2) year period.
The coke oven battery nos. 1 and 2 pushing emissions control system stacks (two (2) stacks) shall be tested once in each four (4) year period.
(f) If a compliance determination based on fuel usage data does not agree with a compliance determination based on stack test data, the determination based on stack test data shall govern. Stack test data may reflect a total sampling time of less than twenty-four (24) hours and be acceptable for such a compliance determination.
(g) Application for an alternative source-specific opacity limit may not be based on fuel usage data.
(h) Stack tests of fossil-fuel-fired sources shall include soot blowing at a frequency that is representative of normal operations.
(i) Compliance with the coke quenching water quality limits shall be determined according to the procedures given below:
(j) Compliance with applicable particulate emission limitations for stack sources for which compliance is not based on fuel monitoring shall be determined on the basis of opacity observations performed in accordance with 326 IAC 5-1. The following exceptions to 326 IAC 5-1 shall apply:
Visible emissions in excess of an average twenty percent (20%) opacity in twenty-four (24) consecutive readings shall constitute evidence of a violation of the applicable particulate emission limit. The commissioner may require a stack test performed in accordance with 40 CFR 60, Methods 1-5, to verify the mass emission rate.
(k) Alternative opacity as provided for in 326 IAC 5-1-5 shall not apply to groups of sources collectively subject to a single mass emission limit.
(l) When compliance testing is required for those groups of sources collectively subject to a single mass emission limit, the testing need not be conducted simultaneously.
(m) Any revision to this rule ( 326 IAC 6-6 ) and the technical support document must be submitted to the U.S. EPA as a revision of the state implementation plan.
(n) In determining compliance for coke oven pushing, charging, oven door leaks, and charging lid and off-take leaks, the requirements specified under 326 IAC 11-3 shall govern. The mass emission limits for these sources given in this rule ( 326 IAC 6-6 ) shall be used only for the purpose of determining emission offsets resulting from source shutdown.
(o) Testing required by the commissioner to determine the amount of particulate matter emitted from any non-stack source or facility subject to the requirements of this rule ( 326 IAC 6-6 ) shall be conducted in accordance with procedures approved by the commissioner.
*Copies of the Code of Federal Regulations (CFR) referenced in 326 IAC 6-6 may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center-North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.