Section 112.242 - Control Requirements(a) Hourly mass emissions of sulfur dioxide (SO2), on a block one-hour average, may not exceed the following when Boilers 1 or 2, singly or together, are operating:(1) 109.10 lb/hr SO2 for Boiler Stacks, Boiler 1 and 2 Common Stack (EPN 119);(2) 441.40 lb/hr SO2 for Plant 1 Dryer Stack (EPN 121); and(3) 595.60 lb/hr SO2 for Plant 2 Dryer Stack (EPN 122).(b) If the new flare (EPN New Flare) is not authorized, constructed, and operated, hourly mass emissions of SO2, on a block one-hour average, may not exceed the following when neither Boiler 1 nor 2 is operating: (1) 420.00 lb/hr SO2 for Plant 1, Unit 1 Primary Bag Filter Flare (EPN Flare-1);(2) 0.00 lb/hr SO2 for Boiler Stacks, Boiler 1 and 2 Common Stack (EPN 119);(3) 250.00 lb/hr SO2 for Plant 1 Dryer Stack (EPN 121); and(4) 400.00 lb/hr SO2 for Plant 2 Dryer Stack (EPN 122).(c) If New Flare (EPN New Flare) is authorized, constructed, and operated, hourly mass emissions of SO2, on a block one-hour average, may not exceed the following when neither Boiler 1 nor 2 is operating: (1) 806.60 lb/hr SO2 for New Flare (EPN New Flare);(2) 0.00 lb/hr SO2 for the Boiler Stacks, Boiler 1 and 2 Common Stack (EPN 119);(3) 272.50 lb/hr SO2 for Plant 1 Dryer Stack (EPN 121); and(4) 436.00 lb/hr SO2 for Plant 2 Dryer Stack (EPN 122).(d) Tail gas may only be combusted in a source whose emissions are routed to the Boiler 1 and 2 Common Stack (EPN 119), Plant 1 Dryer Stack (EPN 121), Plant 2 Dryer Stack (EPN 122), Plant 1, Unit 1 Primary Bag Filter Flare (EPN Flare-1), or New Flare (EPN New Flare).(e) Sulfur or sulfur containing compounds may not be routed to EPN Flare-2, EPN Flare-3, and EPN Flare-4 on or after the compliance date in § 112.248 of this title (relating to Compliance Schedules).(f) If New Flare (EPN New Flare) is authorized, constructed, and operated, sulfur or sulfur containing compounds may not be routed to the Plant 1, Unit 1 Primary Bag Filter Flare (EPN Flare-1) on or after the compliance date in § 112.248 of this title.(g) Sulfur or sulfur containing compounds may not be routed to the Plant 1 Number 1 and Number 2 Dryer Purge Stack (EPN 1) and Plant 1 Number 3 and Number 4 Dryer Purge Stack (EPN 3) on or after the compliance date in § 112.248 of this title.(h) If the New Flare (EPN New Flare) is authorized, constructed, and operated, it must meet the following parameters: (1) tail gas may be routed to the New Flare (EPN New Flare) only when neither Boiler 1 nor 2 is operating; and(2) The New Flare (EPN New Flare) must be constructed with a stack height of 60.35 meters and must be located at Universal Transverse Mercator (UTM) coordinates UTM East Meters 279488 and UTM North Meters 3949627 in UTM Zone 14.(i) If the New Flare (EPN New Flare) is not authorized, constructed, and operated, tail gas may be routed to the Plant 1, Unit 1 Primary Bag Filter Flare (EPN Flare-1) only when neither Boiler 1 nor 2 is operating.(j) The owner or operator may request an alternate means of control under the provisions of § 112.232(k) of this title (relating to Control Requirements).30 Tex. Admin. Code § 112.242
Adopted by Texas Register, Volume 47, Number 42, October 21, 2022, TexReg 7060, eff. 10/27/2022