Primary Aluminum Reduction Section 114 - May 21, 2013

Page 1 of 22

Table 3 Wet Scrubber Description – NA-no wet scrubbers

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

2. Stack or vent location of each control device (use NAD83 and include six decimal places and 

add rows as necessary):

ID No.: _________ Latitude: _______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM Percent mg/dscf _________

PM10 Percent mg/dscf _________

PM2.5 Percent mg/dscf _________

Total Fluorides Percent mg/dscf _________

Hydrogen Fluorides Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Device type: Venturi Vertical packed bed

 Horizontal packed bed Tray tower spray chamber

 Other (specify or describe):

5. Pressure mode of operation: positive pressure negative pressure

6. Typical gas temperature: inlet °F outlet °F

7. Gas flow rate: acfm (at scrubber outlet) dscfm

8. Pressure drop across scrubber: inches water column (in. H2O)
Primary Aluminum Reduction Section 114 - May 21, 2013

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9. Liquid to gas ratio: gal/1,000 acf

10. Chemical usage rate (specify chemical and typical usage rate, if applicable)

Chemical added Usage rate Units for usage rate

11. Identify each source served by this control device (add rows as necessary).

Source ID No(s). Source description(s)

12. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 Volumetric flow rate Fan amperage

 Pressure drop Water flow rate

Other (specify): .

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

 Volumetric flow rate (acfm) Fan amperage (amps)

 Pressure drop (in. H2O) Water flow rate (gpm)

Other (specify): .

14. Has the collected sludge been analyzed?

_____ Yes _____ No

If yes, provide the average and range for each HAP constituent analyzed over the past year or 

last 9 samples, whichever is fewer. Alternatively, attach the results of the analyses. Do not 

include results from the Toxicity Characteristic Leaching Procedure (TCLP).

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

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Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 1 – 161N

2. Stack or vent location of each control device (use NAD83 and include six decimal places and 

add rows as necessary):

ID No.: E1_2N Latitude: 37.657178 Longitude: 87.500279

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.070 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

 X _ Other (describe) ___Sonic horn________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 1 – buildings 101N 

and 102N

Potline 1 - Potrooms north portion of buildings 101N and 102N

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

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Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 1 – 161S

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: E1_2S Latitude: 37.656598 Longitude: 87.500921

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.070 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

_ X Other (describe) _Sonic horn__________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 1 – buildings 101S

and 102S

Potline 1 - Potrooms south portion of buildings 101S and 102S

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 7 of 22

Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 2 – 162N

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: E3_2N Latitude: 37.657715 Longitude: 87.501054

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.032 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

 X Other (describe) ___Sonic horn________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 2 – buildings 103N 

and 104N

Potline 2 - Potrooms north portion of buildings 103N and 104N

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 9 of 22

Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 2 – 162S

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: E3_2S Latitude: 37.657136 Longitude: 87.501685

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.032 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

 X Other (describe) ___Sonic horn________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 2 – buildings 103S 

and 104S

Potline 2 - Potrooms south portion of buildings 103S and 104S

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 11 of 22

Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 3 – 163N

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: E5_2N Latitude: 37.658522 Longitude: 87.502204

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.045 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

__X__ Other (describe) ___Sonic horn________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 3 – buildings 105N 

and 106N

Potline 3 - Potrooms north portion of buildings 105N and 106N

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 13 of 22

Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

A398 Fume control system – Line 3 – 163S

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: E5_2S Latitude: 37.657951 Longitude: 87.502835

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM 95 Percent mg/dscf _________

PM10 95 Percent 0.029 mg/dscf ____1____

PM2.5 Percent 0.027 mg/dscf ____1____

Total Fluorides 95 Percent 0.045 lb F/ton Al ____1____

Hydrogen Fluorides 95 Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

 X _ Other (describe) ___Sonic horn________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 238 °F outlet from bag house 238 °F

8. Gas flow rate: 251,200 acfm (at bag house outlet) 183,400 dscfm

9. Pressure drop: Across scrubber: 12 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.96 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 75 to 295 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Potline 1 – buildings 105S

and 106S

Potline 1 - Potrooms south portion of buildings 105S and 106S

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

< 160,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 75 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 15 of 22

Table 4 Combination Dry Alumina Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

Anode Bake Furnace A446 Fume Control System

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: N2_01 Latitude: 37.658648 Longitude: 87.497999

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM Percent mg/dscf _________

PM10 100 Percent 0.200 mg/dscf ____1____

PM2.5 Percent 0.198 mg/dscf ____1____

Total Fluorides 100 Percent 0.002 lb F/ton Al ____1____

Hydrogen Fluorides 100 Percent mg/dscf _________

POM (tons Green Anode) 100 Percent 0.020 lb POM/ton GA ____1____

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

 X Fluidized bed _____ Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

_____ Pulse jet _____ Reverse air _____ Shaker

 _ X _ Other (describe) __Sonic horn_________________________________________

6. Pressure mode of operation: X positive pressure negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 424 °F outlet from bag house 180 °F

8. Gas flow rate: 72,700 acfm (at bag house outlet) 57,900 dscfm

9. Pressure drop: Across scrubber: 20 inches water column (in. H2O)

Across bag house: 8 inches water column (in. H2O)

10. Solid to gas ratio: 0.67 lb/1,000 acf

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 7.8 to 14.1 cuft/hr

Recycled alumina NA

Other alumina (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Anode Bake Furnaces (2) Anode Bake Furnaces (2), (A446 control device – emission point 

EE) 

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate X Fan amperage

 X Pressure drop Visible emissions opacity

Other (specify): Alumina Feed Rate .

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

<45,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 7.8 cuft/hr Alumina Feed Rate (after a 5hr monitored time period) 

Per reactor.

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 17 of 22

Table 5 Combination Dry Coke Scrubber/Bag House Description

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

Paste Production Fume Control System – Procedair

2. Stack or vent location of each control device (use NAD83 and include six decimal places

and add rows as necessary):

ID No.: M2_01 Latitude: 37.658877 Longitude: 87.499145

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM Percent mg/dscf _________

PM10 Percent 0.343 mg/dscf ____1____

PM2.5 Percent 0.111 mg/dscf ____1____

Total Fluorides Percent mg/dscf _________

Hydrogen Fluorides Percent mg/dscf _________

POM 90 Percent mg/dscf 3 _

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Scrubber device type:

_____ Fluidized bed X Injection

_____ Other (specify or describe): _________________________________________

5. Bag cleaning method:

 X Pulse jet _____ Reverse air _____ Shaker

_____ Other (describe) _________________________________________________

6. Pressure mode of operation: positive pressure X negative pressure
Primary Aluminum Reduction Section 114 - May 21, 2013

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7. Typical gas temperature: inlet to scrubber 120 °F outlet from bag house 120 °F

8. Gas flow rate: 54,900 acfm (at bag house outlet) 48,300 dscfm

9. Pressure drop: Across scrubber: 17 inches water column (in. H2O)

Across bag house: 6 inches water column (in. H2O)

10. Solid to gas ratio: 1.23 lb/1,000 acf

11. Dry coke usage rate (differentiate between virgin and recycled coke)

Type of Dry Coke Added Usage rate Units for usage rate

Virgin dry coke 52 cuft/hr

Recycled dry coke NA

Other dry coke (specify ________________)

12. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description(s)

Green Anode Production Anode Mix Conveying Systems (3 sections), Anode Mixers (7 

stations), Presses (Press 1 and Press 2)

13. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 X Volumetric flow rate Fan amperage

 Pressure drop Visible emissions opacity

Other (specify): Coke Feed Rate .

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

< 30,000 Volumetric flow rate (scfm) Fan amperage (amps)

 Pressure drop (in. H2O) Visible emissions opacity (%)

Other (specify): < 52 cuft/hr Dry Coke Feed Rate .

15. Additional comments and information:
Primary Aluminum Reduction Section 114 - May 21, 2013

Page 19 of 22

Table 6 Electrostatic Precipitator (ESP) Description – NA-no ESPs

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

2. Stack or vent location of each control device (use NAD83 and include six decimal places and 

add rows as necessary):

ID No.: _________ Latitude: _______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM Percent mg/dscf _________

PM10 Percent mg/dscf _________

PM2.5 Percent mg/dscf _________

Total Fluorides Percent mg/dscf _________

Hydrogen Fluorides Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

* 1 = Performance testing 2 = Engineering judgment 3 = Manufacturer specs.

4 = Title V permit application 5 = Other (specify) _______________________

4. Device type: High-voltage, single-stage Low-voltage, two-stage

 Wet Dry

 Other (specify or describe):

5. Pressure mode of operation: positive pressure negative pressure

6. Typical gas temperature: inlet °F outlet °F

7. Gas flow rate: acfm (at ESP outlet) dscfm
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8. Collection plate surface area: __________ ft2

9. Secondary power: _____________ kW

10. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Description

11. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 Visible emissions Volumetric flow Fan amperage

opacity rate

 Secondary power Secondary voltage

 Other (specify): .

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

 Visible emissions Volumetric flow Fan amperage

opacity (%) rate (acfm) (amps)

 Secondary power Secondary voltage

(kW) (volts)

 Other (specify): .

13. Has the collected dust been analyzed?

_____ Yes _____ No

If yes, provide the average and range for each HAP constituent analyzed over the past year or 

the last 9 samples, whichever is fewer. Alternatively, attach the results of the analyses. Do 

not include results from the Toxicity Characteristic Leaching Procedure (TCLP).

14. Additional comments and information:
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Table 7 Other Air Pollution Control Devices – NA

1. Control device description and ID number (or numbers, if several identical control devices 

are used to control a given emission source):

2. Stack or vent location of each control device (use NAD83 and include six decimal places and 

add rows as necessary):

ID No.: _________ Latitude: _______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

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) (if known)

PM Percent mg/dscf _________

PM10 Percent mg/dscf _________

PM2.5 Percent mg/dscf _________

Total Fluorides Percent mg/dscf _________

Hydrogen Fluorides Percent mg/dscf _________

POM Percent mg/dscf _________

COS Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) Percent mg/dscf _________

Other (specify) 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 pressure negative pressure

5. Typical gas temperature: inlet °F outlet °F

6. Gas flow rate: acfm Specify location: _______________________________

 dscfm

7. Identify each emission source served by this control device (add rows as necessary).

Source ID No(s). Source description(s)
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8. Indicate what operational parameters of the control device are monitored to ensure that the 

control device is operating properly:

 Visible emissions opacity Volumetric flow rate

 Pressure drop

Other (specify): .

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

 Visible emissions opacity (%) Volumetric flow rate (acfm)

 Pressure drop (in. H2O)

Other (specify): .

10. Has the collected dust or sludge been analyzed?

_____ Yes _____ No ______ Not Applicable

If yes, provide the average and range for each HAP constituent analyzed over the past year 

or last 9 samples, whichever is fewer. Alternatively, attach the results of the analyses. Do not 

include results from the Toxicity Characteristic Leaching Procedure (TCLP).

11. Additional comments and information: