326 IAC 6.8-2-17 Mittal Steel-Indiana Harbor East Inc.

Sec. 17. (a) Mittal Steel-Indiana Harbor East Inc. in Lake County, source identification number 00316, shall meet the following emission limits: Emission Limits Source Units lbs/hr Number 4 slab mill scarfer 0.039 lbs/ton 21.97 Number 2A bloomer scarfer 0.107 lbs/ton 10.70 Mold foundry baghouse 0.011 gr/dscf 26.00 Sinter plant discharge end and cooler baghouse 0.01 gr/dscf TSP 11.70 TSP Sinter plant windbox baghouse 0.007 gr/dscf TSP 17.00 TSP Lime plant silo baghouses 0.085 lbs/ton 5.530 Lime plant firing and kiln baghouses 0.110 lbs/ton 7.149 Number 4 roll shop ervin blaster/baghouse 0.0052 gr/dscf TSP 0.210 TSP Number 4 roll shop wheelabrator baghouse 0.0052 gr/dscf TSP 0.260 TSP Number 4A roll shop ervin blaster/baghouse 0.0052 gr/dscf TSP 0.210 TSP Number 4A roll shop pangborn blaster/baghouse 0.0052 gr/dscf TSP 0.260 TSP Number 2 roll shop pangborn blaster/baghouse 0.0052 gr/dscf TSP 0.270 TSP Number 6 roll shop roll blaster/baghouse 0.0052 gr/dscf TSP 0.200 TSP Electric shop blasters/baghouses 0.0052 gr/dscf TSP 1.070 TSP Number 7 blast furnace casthouse (west) baghouse 0.003 gr/dscf 11.22 Number 7 blast furnace stockhouse pellet baghouse 0.0052 gr/dscf 4.00 Number 7 blast furnace casthouse (east) baghouse 0.011 gr/dscf TSP 22.00 TSP Number 7 blast furnace coke screening baghouse 0.007 gr/dscf TSP 4.200 TSP Number 7 blast furnace stockhouse coke baghouse 0.01 gr/dscf TSP 2.00 TSP Number 2 basic oxygen furnace number 10 furnace stack 0.058 lbs/ton TSP 16.00 TSP Number 2 basic oxygen furnace number 20 furnace stack 0.058 lbs/ton TSP 16.00 TSP Number 2 basic oxygen furnace caster fume collection baghouse 0.0052 gr/dscf TSP 2.00 TSP Number 2 basic oxygen furnace ladle metallurgical station baghouse 0.0052 gr/dscf TSP 2.00 TSP Number 2 basic oxygen furnace secondary ventilation system scrubber 0.015 gr/dscf TSP 12.00 TSP Number 2 basic oxygen furnace tundish dump baghouse 0.0052 gr/dscf TSP 2.200 TSP Number 2 basic oxygen furnace charging aisle reladling and desulfurization baghouse 0.011 gr/dscf TSP 28.30 TSP Number 2 basic oxygen furnace truck and ladle hopper baghouse 0.0052 gr/dscf TSP 0.800 TSP Number 2 basic oxygen furnace flux storage and batch baghouse 0.0052 gr/dscf TSP 0.530 TSP Number 4 basic oxygen furnace reladling and desulfurization baghouses 0.0052 gr/dscf TSP 8.26 TSP Number 4 basic oxygen furnace scrubber stack (steelmaking) 0.187 lbs/ton TSP 100.00 TSP Number 4 basic oxygen furnace vacuum degassing baghouse 0.01 gr/dscf TSP 4.280 TSP Number 4 basic oxygen furnace secondary ventilation system baghouse 0.006 gr/dscf TSP 22.30 TSP Stack serving blast furnace stove, number 5 (3 units) 0.016 lbs/MMBtu 4.70 Stack serving blast furnace stove, number 6 (4 units) 0.016 lbs/MMBtu 3.64 Stack serving blast furnace stove, number 7 (3 units) 0.0076 lbs/MMBtu 6.32 Stack serving "A" blast furnace stoves (3 units) 0.021 lbs/MMBtu 5.090 Stack serving "B" blast furnace stoves (3 units) 0.021 lbs/MMBtu 5.090 100 inch plate mill reheat furnace 0.078 lbs/MMBtu 13.74 Number 4 slabber soaking pit numbers 19 through 45 collective 0.006 lbs/MMBtu 1.750 Stack serving number 2AC station boiler numbers 211 through 213 0.018 lbs/MMBtu 16.20 Stack serving number 3AC station boiler numbers 301 through 304 0.018 lbs/MMBtu 16.20 Number 3AC station boiler number 305 0.018 lbs/MMBtu 5.400 Stack serving number 4AC station boiler number 401 through 404 0.042 lbs/MMBtu 76.578 Number 4AC station boiler number 405 0.028 lbs/MMBtu 18.78 Stack serving number 5 boiler house (3 units) 0.013 lbs/MMBtu 18.05 Electric arc furnace shop direct shell evacuation system baghouse roof monitor 0.0052 gr/dscf 17.14 Electric arc furnace shop ladle metallurgical station baghouse 0.01 gr/dscf 0.820 Raw coal conveyor transfer baghouse A 0.003 gr/dscf 0.17 Raw coal storage bin baghouse C 0.003 gr/dscf 0.23 Coal pulverizer baghouse D 0.0015 gr/dscf 0.93 Coal pulverizer baghouse E 0.0015 gr/dscf 0.93 Number 7 blast furnace coal storage bin baghouse F 0.003 gr/dscf 0.09 Number 7 blast furnace coal storage bin baghouse G 0.003 gr/dscf 0.09 Numbers 5 and 6 blast furnace coal storage bin baghouse H 0.003 gr/dscf 0.09 (b) The following opacity limits shall be complied with and shall take precedence over those in 326 IAC 5-1-2 with which they conflict: Source Opacity Electric arc furnace direct shell evacuation system baghouse 5%, 6 minute average Electric arc furnace shop roof monitor 20%, 6 minute average Electric arc furnace shop ladle metallurgical station baghouse 5%, 6 minute average Number 2 basic oxygen furnace, number 10 furnace off-gas scrubber 20%, 6 minute average Number 2 basic oxygen furnace, number 20 furnace off-gas scrubber 20%, 6 minute average Number 2 basic oxygen furnace caster fume collection baghouse 5%, 3 minute average Number 2 basic oxygen furnace charging isle and reladling desulfurization baghouse 5%, 3 minute average Number 2 basic oxygen furnace flux storage and batch baghouse 5%, 3 minute average Number 2 basic oxygen furnace ladle metallurgy station baghouse 5%, 3 minute average Number 2 basic oxygen furnace roof monitor 20%, 3 minute average Number 2 basic oxygen furnace secondary ventilation system scrubber 20%, 6 minute average Number 2 basic oxygen furnace truck and ladle hopper baghouse 5%, 3 minute average Number 2 basic oxygen furnace tundish dump baghouse 5%, 3 minute average Number 4 basic oxygen furnace off-gas scrubber 20%, 6 minute average Number 4 basic oxygen furnace reladling and desulfurization baghouse 5%, 3 minute average Number 4 basic oxygen furnace roof monitor 20%, 3 minute average Number 4 basic oxygen furnace secondary ventilation system baghouse 5%, 3 minute average Number 4 basic oxygen furnace vacuum degassing material handling baghouse 5%, 3 minute average Number 7 blast furnace casthouse 15%, 6 minute average (c) The following combustion sources shall fire natural gas only: (1) 12 inch bar mill reheat furnace. (2) Stack serving 21 inch bar mill reheat furnace numbers 1 and 2. (3) Stack serving 76 inch hot strip mill reheat furnace numbers 1, 2, and 3. (4) Stack serving 80 inch hot strip mill furnace numbers 3 and 4. (5) Number 3 cold strip and numbers 5 and 6 annealing furnaces. (6) Number 5 galvanizing line. (7) Number 3 continuous anneal line. (8) Open coil anneal. (9) Plant 1 galvanizing lines. (10) Normalizing line. (d) Number 7 blast furnace casthouse. Tapping emissions from the number 7 blast furnace casthouse shall be controlled by a hood vented to a baghouse on and after December 1, 1992. Canopy hoods shall be: (1) installed above each of the four (4) furnace tap holes; (2) ducted to a new three hundred seventy thousand (370,000) actual cubic feet per minute minimum design flow rate baghouse; (3) located just above the casthouse crane; and (4) extend via vertical sheeting to the casthouse roof. The system shall provide a minimum of one hundred eighty-five thousand (185,000) actual cubic feet per minute of air flow (fume capture) to each hood when the corresponding tap hole is being drilled or plugged.