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1 of 4 **Table 3 Wet Scrubber Description**  1. Control device description: Potline 1
- 4 Wet Scrubber 2. Stack or vent location of control device (use NAD83 and include six decimal places): ID No.: ___ 84

______ Latitude: 37.943250 __________L ongitude:
- 86.786596

____ 3. Desi gn collection efficiency and outlet concentration (add rows as necessary ): Pollutant Collection Outlet Source of Efficiency * concentration Estimation * (if known) HF 90 Percent mg/dscf

_ 3

________ So2 50 Percent mg/dscf

__ 3

_______ Percent mg/dscf

_________ * 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs. 4 = Title V permit application 5 = Other (specify ) _______________________ 4. Device t ype: Venturi Vertical packed bed Horizontal packed bed X Tray tower spray

chamber Other (specify

or describe): 5. Pressure mode of operation: X positive pressure negative pressure 6. Ty pical gas temperature: inlet 200 °F outlet 79 °F 7. Gas flow rate: 1,640,000 acfm (at scrubber outlet) 1,415,980 dscfm 8. Pressure drop across scrubber: 2
- 12 inches water column (in. H 2 O) 9. Liquid to gas ratio: gal/1,000 acf 10. Chemical usage rate (specify chemical and t ypical usage rate, if applicable) Chemical added Usage rate Units for usage rate Lime 100 Tons/wee k**DRAFT –**  **03 /**  **01 /1**  **3**

2 of 4 11. Id entify

each source served by

this control device (add rows as necessary ). Source ID No(s). Source description(s) EP (84) Equip 4200 Potline #1 CWPB3 EP (84) Equip 42 2 0 Potline #2 CWPB3 EP (84) Equip 42 3 0 Potline #3 CWPB3 EP (84) Equi p 42 4 0 Potline #4 CWPB3 12. Indicate what operational parameters of the control device are monitored to ensure that the control device is operating properl y:

Volumetric flow rate X Fan amperage Pressure drop X Water flow rate Other (specify ):
. 13. What level of a monitored operational parameter triggers corrective action?

Volumetric flow rate (acfm) 170
- 210 Fan amperage (amps) Pressure drop (in. H 2 O) 3,000 Water flow rate (gpm) Other (specify ):
. 14. Additional comments and information :**DRAFT –**  **03 /**  **01 /1**  **3**

3 of 4 **Table 4**  **Combination Dry Alumina Scrubber/Bag House Description** 1. Control device description: Carbon Bake Scrubber 2. Stack or vent location of control device (use NAD83 and include six decimal places): ID No.: 41

_________ Latitude: 37.948694

_________ __ Longitude:
- 86.787524

_____ 3. Design collection efficiency and outlet concentration (add rows as necessary ): Pollutant Collection Outlet Source of efficiency * concentration Estimation * (if known) POM 90 Percent mg/dscf

____ 3

___ __ PM 90 Percent mg/dscf

____ 3

_____ HF 90 Percent mg/dscf

___ 3

______ * 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs. 4 = Title V permit application 5 = Other (specify ) _____________

__________ 4. Scrubber device t ype:

__ X

___ Fluidized bed

___ X

__ Injection

___ X

__ Other (specify

or describe): _____ cooling tower

_____________________ 5. Bag cleaning method:

__ X

___ Pulse jet

_____ Reverse air

_____ Shaker

_____ Other (describe)

______________ ___________________________________ 6. Pressure mode of operation: positive pressure X negative pressure 7. Ty pical gas temperature: inlet to scrubber 254 °F outlet from bag house 185 °F 8. Gas flow rate: 174,150 acfm (at bag house outlet) 136,040 dscfm 9. Pressure drop: Across scrubber: Bed pressure 0.53 inches water column (in. H 2 O)

Across bag house: 8.0 inches water column (in. H 2 O) 10. Solid to gas ratio: ND lb/1,000 acf**DRAFT –**  **03 /**  **01 /1**  **3**

4 of 4 11. Alumina usage rate (differentiate between virgin and recycled alumina from potlines)

Ty pe of Alumina Added Usage rate Units for usage rate Virgin alumina 3475 Lbs/hr Recy cled alumina Other alumina (specify

_________

_______) 12. Id entify

each emission source served b y this control device (add rows as necessary ). Source ID No(s). Description(s) EP (41) Anode Bake Furnaces 1,2 &3

13. Indicate what operational parameters of the control device are monitored to ensure that the control device is operating properl y: X Volumetric flow rate Fan amperage Pressure drop X Visible emissions opacity Other (specify ): Gas temp at cooling tower, Alumina Feed rate

. 14. What level of a monitored operational parameter triggers corrective action?

119,232 SCFM Volumetric flow rate (acfm) Fan amperage (amps) Pressure d rop (in. H 2 O) 20 Visible emissions opacity (%) Other (specify ): Gas Temp
- 170/
- 208 F Alumina Flow rate
- 3475 lbs/hr
. 15. Additional comments and informat ion:**DRAFT –**  **03 /**  **01 /1**  **3**

5 of 4 **Table 5**  **Electrostatic Precipitator (ESP) Description** 1. Control device description: Potlines 1
- 4 ESP 2. Stack or vent location of each control device (use NAD83 and include six decimal places): ID No.: _ 84

________ Latitude: 37.943250

_____ Longitude:
- 86.786596

__________ 3. Design collection efficiency and outlet concentration (add rows as necessary ): Pollutant Collection Outlet Source of efficiency * concentration Estimation * (if known) PM 94.5 Percent mg/dscf

___ 3

______ Percent mg/dscf

_________ Percent mg/dscf

_________ * 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs. 4 = Title V permit application 5 = Other (specify ) _______________________ 4. D evice t ype: X High
- voltage, single
- stage Lo w - voltage, two
- stage Wet Dry Other (specify

or describe): 5. Pressure mode of operation: positive pressure X negative pressure 6. Ty pical gas temperature: inlet 200 ° F o u t l e t ° F 7. Gas flow rate: 1,640,000 acfm (at ESP outlet) 1,415,980 dscfm 8. Collection plate surface area: _ 1800 per ESP (8 total) _____ ft 2 9. Secondary

power: _____________ kW 10. Id entify

each emission source served by this control device (add rows as necessary ). Source ID No(s). Description**DRAFT –**  **03 /**  **01 /1**  **3**

6 of 4 EP (84) Equip 4200 Potline #1 CWPB3 EP (84) Equip 4220 Potline #2 CWPB3 EP (84) Equip 4230 EP(84)Equip 4240 Potline #3 CWPB3 Potline #4 CWPB3 11. Indicate what operation al parameters of the control device are monitored to ensure that the control device is operating properl y: X Visible emissions Volumetric flow X Fan amperage opacity rate Secondary

power X Second ar y voltage X Other (specify ): Secondary current

. 12. What level of a monitored operational parameter triggers corrective action? 20 Visible emissions Volumetric flow 170
- 210 Fan amperage opacity (%) rate (acfm) (amps) Secondary

power 20
- 29 mV Secondary voltage (kW) (volts) 80
- 156 mA Other (specify ): Secondary Current

. 13. Additional comments and information:**DRAFT –**  **03 /**  **01 /1**  **3**

7 of 4 **Table 6**  **Combination Dry Coke Scrubber and Bag House Description**  1. Control device description: 2. Stack or vent location of each control device (use NAD83 and include six decimal places): ID No.: _________ Latitude: _______________ Longitude: ________________ 3. Design collection efficiency and outlet concentration (add rows as necessary ): Pollutant Collection Outlet Source of efficiency * concentration Estimation * (if known) Percent mg/dscf

_________ Percent mg/dscf

_________ Percent mg/dscf

_________ * 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs. 4 = Tit le V permit application 5 = Other (specify ) _______________________ 4. Scrubber device t ype:

_____ Fluidized bed

_____ Injection

_____ Other (specify

or describe): _________________________________________ 5. Bag cleaning method:

_____ Pulse jet

_____ Reverse air

_____ Shaker

_____ Other (describe)

_________________________________________________ 6. Pressure mode of operation: positive pressure negative pressure 7. Ty pical gas temperature: inlet ° F o u t l e t ° F 8. Gas flow rate: acfm (at bag house outlet) dscfm 9. Pressure drop: Across scrubber: inches water column (in. H 2 O)

Across bag house: inches wat er column (in. H 2 O) 10. Solid to gas ratio: l b /1,000 a cf**DRAFT –**  **03 /**  **01 /1**  **3**

8 of 4 11. Dry coke usage rate:

12. Id entify

each emission source served b y this device (add rows as necessary ). Source ID No(s). Description(s)

13. Indicate what operational p arameters of the control device are monitored to ensure that the control device is operating properl y:

_______ Volumetric flow rate

____________ Fan amperage

_______ Visible emissions opacity

____________ Pressure drop Other (specify ):
. 14. What level of a monitored operational parameter triggers corrective action?

_______ Volumetric flow rate (acfm)

____________ Fan amperage (amps)

_______ Visible emissions opacity (%)

____________ Pressure drop (in. H 2 O) Other (specify ):
. 15. Additional comments and information:**DRAFT –**  **03 /**  **01 /1**  **3**

9 of 4 **Table 7**  **Other Air Pollution Control Devices** 1. Control device description: Potline 1
- 4 Wet Scrubber Cy clone 2. Stack or vent location of each control device (use NAD83 and include six decimal places): ID No.: _ 84

________ Latitude: 37.943250

______ Longitude:
- 86.786596

_________ 3. Design collection efficiency and outl et concentration (add rows as necessary ): Pollutant Collection Outlet Source of efficiency * concentration Estimation * (if known) PM 80 Percent mg/dscf

___ 3

______ Percent mg/dscf

_________ Percent mg/dscf

_________ * 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs. 4 = Title V permit application 5 = Other (specify ) _______________________ 4. Pressure mode of operation: positive pressu re X negative pressure 5. Ty pical gas temperature: inlet 65 °F outlet °F 6. Gas flow rate: 5000 acfm Specify location: _______________________________ D scfm 7. Id entify

each emission source served b y this control device (add rows as necessary ). Source ID No(s). Source description(s) EP (84) Equip 4200 Potline #1 CWPB3 EP (84) Equip 4220 Potline #2 CWPB3 EP (84) Equip 4230 Potline #3 CWPB3 EP (84) Equip 4240 Potline #4 C WPB3 8. Indicate what operational parameters of the control device are monitored to ensure that the control device is operating properl y:

Visible emissions opacity Volumetric flow rate Pressure drop Other (specify ):
.**DRAFT –**  **03 /**  **01 /1**  **3**

10 of 4 9. What level of a monitored operational parameter triggers corrective action?

Visible emissions opacity (%) Volumetric flow rate (acfm) Pressure drop (in. H 2 O) Other (specify ):
. 10. Additional comments and information: