Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 1 of 20 Facility Questionnaire for Primary Aluminum Reductio n Plants 1

, 2

Please provide the information requested in the following forms. Use additional copies of the survey forms for additional facilities, as needed, for your response.

This request for information is divided into four parts to be completed by each facility:

Part A General Facility Information

Part B Process and Emissions Control Devices

Part C Start

- ups and Shutdowns

Part D Previously Performed Testing and Test Report Data

Note, as stated in the cover letter from EPA, the survey response(s) ( Enclosure 1 ) and the new test results ( Enclosure 2 ) are due by May 31 , 2011

.

Please separate confidential business information (CBI) from non

- CBI for submittal to EPA. Please see the instructions in the cover letter for submitting CBI.

1 See Appendix A for an explanation of acronyms used in this document and Appendix B for a list of Hazardous Air

Pollutants (HAP).

2 Please make copies and complete these forms for each facility in your company subject to this request for

information, as described in the cover letter from EPA. If possible we would prefer receiving the completed forms

as electronic f iles in Microsoft® Word format . Please add additional rows to the tables as needed to contain your responses. Blank electronic forms are included on the disc provided with this package.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 2 of 20 PART A : GENERAL FACILITY INFORMA TION (Please fill out a separate form for each of your facilities )

1. Name and address of the PARENT COMPANY that owns the facility:

Alcoa Inc.

201 Isabella St Pittsburgh, PA 15212

2. Name and address of legal OPERATOR of the facility, if different than the legal OWNER :

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

3. Complete street address of facility (physical location):

a. Address: 6200 Malaga

- Alcoa Highway

b. City: Malaga

c. State: Washington

d. Zip: 98828

e. County: Chelan

4. Provide mailing address of the facility if di fferent than physical location:

a. Address:

_____________________________________________________________ b. City:

________________________________________________________________

c. State:

_______________________________________________________________ d. Zip:

_________________________________________________________________

5. Facility contact able to answer technical questions about the completed survey :

a. Name (First Name, Last Name): David Hulse

b. Title: Environmental Supervisor

c. Telephone number: (509) 663

- 9206 ext.

___________________________________ d. Fax number: (509) 663

- 9200

e. E

- mail: david.hulse@alcoa.com

6

. Please provide an electron ic copy of your current Title V operating permit and any pending

Title V operating permit modification applications (pdf file s are preferred)

.

7

. Please provide a copy of the facility schematic showing all of the p rimary a luminum operations that are subject to 40 CFR Part 63, Subpart LL . Please i nclud e the control

device ID numbers in the facility schematic.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 3 of 20 PART B: PROCESS ES AND EMISSIONS CONTROL DEVICES

8

. P itch storage tanks :

3 Total number of pitch storage tanks at facility

No Is at least one of the pitch storage tanks empty at all times ?

22000 Total amount of pitch used ( tons per year) assuming facility operation at maximum capacity

8a. Please provide the c apacity (tons) of each pitch storage tank at facility (use the same pitch storage tank ID numbers as were assigned in the schematic provided in response to question 7 and add columns if necessary):

ID No.: Tank 1 Tank 2 Tank 3

____________ Capacity: 550 550 550

____________ 8b. Please provide a rationale, if applicable, for why application of an emission standard

to the p itch storage tank(s) is not practica b l e economically or technologically

Not practicable economically:

____________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

Not practicable technologically: __________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

9

. A node bake furnaces:

2 Total n umber of anode bake furnaces at facility

153000 Facility

- wide green a node production capacity (tons per year)

92000 Total a mount of coke used for anode production ( tons per year) assuming facility operation at maximum capacity

1 0

. A luminum production , by potline (s) (use the same potline ID numbers as were assigned in the schematic provided in response to question 7) :

Total potlines (number) and combined aluminum capacity (tons per year):

Total potlines ( 4 ) Aluminum capacity ( 210000 )

Individual potlines (add rows as necessary) and aluminum capacity (tons per year) :

Potline #

__ 1

___ Aluminum capacity ( 51000 )

Potline #

__ 2

__ Aluminum capacity ( 51000 )

Potline #

__ 3

__ Aluminum capacity ( 49000 )Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 4 of 20 Potline #

__ 5

__ Aluminum capacity (59000 )

1 1

. Please describe your facility potline types (add rows as necessary and use the same ID numbers as were assigned in the schematic provided in response to question 7) :

1 1 a. Potline ID No. Potline Type * Total No. of Pots

Potline #

___ 1

____ __ CWPB1

__ ____ 156

____ Potline #

___ 2

____ __ CWPB1

__ ____ 156

____ Potline #

___ 3

____ __ CWPB1

__ ____ 1 4 6

____

Potline #

___ 5

____ __ CWPB1

__ ____ 15 0

____

* Center

- work ed pre

- bake 1 (CWPB1); Horizontal stud Soderberg 1 (HSS1)

Center

- worked pre

- bake 2 ( CWPB2 ) ; Horizontal stud Soderberg 2 (HSS2)

Center

- worked pre

- bake 3 ( CWPB3 ) ; Vertical stud Soderberg (VSS)

Side

- worked pre

- bake (SWPB)

1 1 b. What is the average f requency, average number, and average duration of cell openings (side shield and/or door removals) for each potline?

Potline

ID Cell opening (side shield and/or door removals)

Average Frequency a Average Number b Average Duration c
(minutes)

Side shield Door Side shield Door Side shield Door

1 3 6 3 1 6 2

2 3 6 3 1 6 2

3 3 6 3 1 6 2

5 3 6 3 1 6 2

a The average number of times that at least one side shield or door of a given cell of

the cited potline is open ed during a 24 consecutive hour period.

b The average number of cell openings (i.e. side shields and/or doors removed from

all the cells in the cited potline) at any given time

.

c The average length of time, in minutes, t hat a given side shield or door of a cell of

the cited potline is removed

.

1 1 c

. Describe the exhaust capture/hooding system for each potline including the capture efficiency (if known) , evacuation rate, and damper system.

Potline ID Capture efficiency (%) Evacuation

rate (scfm) Damper system? (i.e. to allow high

and low flow evacuation rates)

Yes NoEnclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 5 of 20 1 99 310000+ Yes

2 99 310000+ Yes

3 99 310000+ Yes

5 99 330000+ Yes

1 1 d. Please provide a copy of the method(s) used (e.g. inspection checklist or log) to ensure that the capture efficiencies cited in the table above are achieved.

1 2

. Is total fluoride emitted from the roof vents measured with a sampling manifold or a cassette system? ( CHECK one)

__ Lines 1,3,5 _ Manifold or ______________ Cassette (Line 2 uses a CEMS alternate method)

1 2 a

. What is the total typical exhaust rate from the roof vents of each pot room ( scfm )?

2500000

1 3

. Please describe your facility paste plant and emissions controls below :

0.6% Typical sulfur content of pitch

0.7% Maximum sulfur content of pitch cited in specifi cations provided to pitch suppliers , if applicable

2.6% Typical sulfur content of coke

3.0% (Month Ave) Maximum sulfur content of coke cited in specifications provided to coke suppliers , if applicable

1 3 a. What is the availability and cost of coke and pitch with lower sulfur content s for your facility? What is the lowest sulfur content coke and pitch available?

Alcoa discussed at length the availability and cost of lower sulfur coke duri ng a meeting with EPA on May 23, 2011. Please refer to the presentation provided by Alcoa for that meeting.

1 3 b. What company (provide name and contact information) supplies your facility with the raw materials used in paste production? Please submit a co py of the current MSDS

for these materials.

Pitch: Koppers

Coke: Oxbow and BP

1 3 c. Is any coal tar pitch (as opposed to petroleum pitch) used in your facility? Yes.

13d. Please provide information on the methodology used [e.g. assumptions made, mass

b alance calculations, assumed variations associated with potline type (e.g. Soderberg

versus pre

- bake), etc.] to estimate COS emissions from the facility.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 6 of 20 Mass balance assuming all sulfur in coke and pitch is emitted as SO2 (90%) and COS(10%) based on hi storical data available to Alcoa for CWPB1 pots.

1 4

. a. Please provide information on any air pollution control device(s) controlling emissions

from the pitch storage tanks, the paste plant, the anode bake furnaces , and/or the potlines at this facility us ing Tables 1

, 2

, 3

, 4 , and/or 5 , as appropriate. Please use the same ID numbers as were assigned in the schematic provided in response to question 7.

b. Does your operating permit include limits for emissions of particulate matter from the potlines and/ or limits on the sulfur content of the pitch and/or coke used to produce anodes? If so, what are those limits?

Particulate limits

– 15lbs PM / ton Al from all potlines Line 5 also limited to 0.005 grains / dcsf Coke limited to 3.0% sulfur (monthl y average)

c

. Do you have any plans to install any new higher efficiency rated control devices

, or have any pending applications to add on any new controls on sources that are part of the primary aluminum reduction facility ?

( CHECK one) ___________ Yes

_____ X

_______ No

If “Yes,” please specify and include any copies of pending permit applications as requested in item 6 in Part A

.

d

. Please indicate below all emission controls that were installed or upgraded AFTER October 7, 1997 in order to meet the MACT standard s for primary aluminum reduction plants ( add rows as necessary and use the same ID numbers as were assigned in the schematic provided in response to question 7):

Description of new or upgrade d control Emission point Emission limit Date the control or upgrade became operational

Potline 5 Dry Alumina

Scrubber PL

- 5 See attached permit. September 2000

Dry Coke Scrubber GM

- 17 See attached permit. November 1998

1 5

. Pollution prevention: Describe any procedures

, work practice standards

, or materials used at your facility to prevent or reduce emissions of HAP from pitch storage tanks, the paste plant, the anode bake furnaces , and/or the potlines at this facility ( as opposed to controlling pollution after it is formed )

.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 7 of 20 Pitch storage: No

Bake Furnaces: Control fires to minimize emissions

Potlines: Maintain work practices to minimize evolution of fluoride.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 8 of 20 Table 1 Wet Scrubber Description

– Not applicable

1

. Control d evice 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

. D evice type : V enturi V ertical packed bed

H orizontal packed bed T ray tower spray chamber

O ther (specify or describe):

5

. P ressure mode of operation: p ositive pressure n egative 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. H 2 O)Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 9 of 20 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 :

V olumetric flow rate F an amperage

Pressure drop Water flow rate

O ther (specify):

.

13

. What level of a monitored operati onal parameter triggers corrective action?

V olumetric flow rate (acfm) F an amperage (amps)

P ressure drop (in. H 2 O) W ater flow rate (gpm)

O ther (specify):

.

14

. Has the collected sludge been analyzed?

_____ Yes

_____ No

If yes, provide the average and range for each HAP constitue nt 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 informatio n:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 10 of 20 Table 2 Combination Dry Alumina Scrubber /Bag House Description

1

. Control d evice description and ID number ( or numbers, if several identical control devices are used to control a given emission source ) : Alcoa A

- 398 Potroom Dry Scrubbers, Potlines 1, 2, and 3 (PL

- 1, PL

- 2, PL

- 3)

2

. Stack or vent location of each control device ( use NAD83 and include six decimal places and add rows as necessary): See previous 1 14 data submission for location data

. 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 >98 Percent 0.07 mg /dscf

____ 1

____ PM10 Percent mg /dscf

_________ PM2.5 Percent mg /dscf

_________ Total Fluorides >98 Percent 0.004 mg /dscf

____ 1

____ Hydrogen Fluorides >98 Percent 0.0002 mg /dscf

____ 1

____ 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

__ X

__ Shaker

_____ Other (describe)

_________________________________________________

6

. P ressure mode of operation: X p ositive pressure n egative pressureEnclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 11 of 20 7

. Typical gas temperature: inlet to scrubber 160 ° F outlet from bag house 140 ° F

8

. Gas flow rate: 396000 acfm (at bag house outlet) 356000 dscfm

9

. Pressure drop: Across scrubber: 11.0 inches water column (in. H 2 O)
Across bag house: 4.5 inches water column (in. H 2 O)

10

. Solid to gas ratio: 6 lb / 1,000 acf

11

. Alumina usage rate (differentiate between virgin and recycl ed alumina from potlines)

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 270 lbs/min

Recycled alumina None

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 Potline 1, Rooms 4 and 6

Potline 2 Potline 2, Rooms 8 and 10

Potline 3 Potline 3, Rooms 12 and 14

13

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

control device is operating properly :

X V olumetric flow rate F an amperage

P ressure drop Visible emissions opacity

O ther (specify): Rotary vane feeder minutes run time per pot cycle

.

14

. What level of a monitored operati onal parameter triggers corrective action ?

<310000 V olumetric flow rate (acfm) F an amperage (amps)

P ressure drop (in. H 2 O) Visible emissions opacity (%)

O ther (specify): <3110 minutes per pot cycle

.

15

. Additional comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 12 of 20 Table 2 Combination Dry Alumina Scrubber/Bag House Description

2

. Control d evice description and ID number ( or numbers, if several identical control devices are used to control a given emission source ) : Alstom GTC Potroom Dry Scrubber , Potline 5 (PL

- 5)

16

. Stack or vent location of each control device ( use NAD83 and include six decimal places and add rows as necessary): See previous 114 data submission for location data.

ID No.: _________ Latitude:

_______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

17

. Design collection efficiency and outlet concentration (add rows as necessary) :

Pollutant Collection Outlet Source of efficiency * concentration * Estimation * (if known) (if known)

PM >98 Percent 0.004 mg /dscf

____ 1

____ PM10 Percent mg /dscf

_________ PM2.5 Percent mg /dscf

_________ Total Fluorides >98 Percent 0.022 mg /dscf

____ 1

____ Hydrogen Fluorides >98 Percent 0.018 mg /dscf

____ 1

____ 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) _______________________

18

. Scrubber device type:

_____ Fluidized bed

__ X

__ Injection

_____ Other (specify or describe):

_________________________________________

19

. Bag cleaning method :

__ X

__ Pulse jet

_____ Reverse air

_____ Shaker

_____ Other (describe)

_________________________________________________

20

. P ressure mode of operation: p ositive pressure X n egative pressureEnclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 13 of 20 21

. Typical gas temperature: inlet to scrubber 200 ° F outlet from bag house 190 ° F

22

. Gas flow rate: 475000 acfm (at bag house outlet) 400000 dscfm

23

. Pressure drop: Across scrubber: 9.5 inches water column (in. H 2 O)
Across bag house: 8.0 inches water column (in. H 2 O)

24

. Solid to gas ratio: 0.9 lb / 1,000 acf

25

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 417 lbs / min

Recycled alumina None

Other alumina (specify ________________)

26

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

Source ID No(s). Description(s)

Potline 5 Potline 5, Rooms 20 and 22

27

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

control device is operating properly :

X V olumetric flow rate F an amperage

P ressure drop Visible emissions opacity

O ther (specify): Rotary vane feeder revolutions

.

28

. What level of a monitored operati onal parameter triggers corrective action ?

<330000 V olumetric flow rate (acfm) F an amperage (amps)

P ressure drop (in. H 2 O) Visible emissions opacity (%)

O ther (specify): <10800 revolutions per pot cycle

.

29

. Additional comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 14 of 20 Table 2 Combination Dry Alumina Scrubber/Bag House Description

3

. Control d evice description and ID number ( or numbers, if several identical control devices are used to control a given emission source ) : Alcoa A

- 446 Bake Furnace Scrubber (BF

- 10, 11, 12, 13)

30

. Stack or vent location of each control device ( use NAD83 and include six decimal places and add rows as necessary): See previous 114 data submission for location data.

ID No.: _________ Latitude: _______________ Longitude: ________________

ID No.:

_________ Latitude: _______________ Longitude: ________________

ID No.: _________ Latitude: _______________ Longitude: ________________

31

. Design collection efficiency and outlet concentration (add rows as necessary) :

Pollutant Collection Outlet Source of efficiency * concentration * Estimation * (if known) (if known)

PM >96 Percent 0.046 mg /dscf

____ 1

____ PM10 Percent mg /dscf

_________ PM2.5 Percent mg /dscf

_________ Total Fluorides >97 Percent 0.001 mg /dscf

____ 1

____ Hydrogen Fluorides >97 Percent 0.0005 mg /dscf

____ 1

____ POM >97 Percent 0.044 mg /dscf

____ 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) _______________________

32

. Scrubber device type:

__ X

__ Fluidized bed

_____ Injection

_____ Other (specify or describe): _________________________________________

33

. Bag cleaning method :

__ X

__ Pulse jet

_____ Reverse air

_____ Shaker

_____ Other (describe)

_________________________________________________

34

. P ressure mode of operation: X p ositive pressure n egative pressureEnclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 15 of 20 35

. Typical gas temperature: inlet to scrubber 280 ° F outlet from bag house 160 ° F

36

. Gas flow rate: 36600/reactor acfm (at bag house outlet) 30000/reactor dscfm

37

. Pressure drop: Across scrubber: 30 inches water column (in. H 2 O)
Across bag house: 4.0 inches water column (in. H 2 O)

38

. Solid to gas ratio: 0.16 lb / 1,000 acf

39

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

Type of Alumina Added Usage rate Units for usage rate

Virgin alumina 5.95 lbs/min/reactor

Recycled alumina None

Other alumina (specify ________________)

40

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

Source ID No(s). Description(s)

Furnace 58 Anode Baking Furnace 58

Furnace 62 Anode Baking Furnace 62

41

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

control device is operating properly :

V olumetric flow rate X F an amperage

P ressure drop Visible emissions opacity

O ther (specify): Maximum static bed time

.

42

. What level of a monitored operati onal parameter triggers corrective action ?

V olumetric flow rate (acfm) >425 F an amperage (amps , 8

- hr Ave. )

P ressure drop (in. H 2 O) Visible emissions opacity (%)

O ther (specify): >72 hours

.

43

. Additional comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 16 of 20 T able 3 Electrostatic Precipitator (ESP) Description

– Not applicable

1

. Control d evice 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

. D evice type: H igh

- voltage, single

- stage L ow

- voltage, two

- stage

W et D ry

O ther (specify or describe):

5

. P ressure mode of operation: p ositive pressure n egative pressure

6

. Typical gas temperature: inlet ° F outlet ° F

7

. Gas flow rate: acfm (at ESP outlet) dscfm

8

. Collection plate surface area: __________ ft 2Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 17 of 20 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 V olumetric flow F an amperage opacity rate

Secondary power Secondary voltage

O ther (specify):

.

12

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

Visible emissions V olumetric flow F an amperage opacity (%) rate (acfm) (amps)

Secondary power Secondary voltage ( kW ) (volts)

O ther (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

. Additi onal comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 18 of 20 Table 4 Bag House Description ( Only fill out Table 4 for bag houses that are not associated

with a dry alumina scrubber. Do not fill out Table 2 and Table 4 for any one bag house

. )

1

. Control d evice description and ID number ( or numbers, if several identical control devices

are used to control a given emission source ) : Dry Coke Scrubber (GM

- 17)

2

. Stack or vent location of each control device ( use NAD83 and include six decimal places and add rows as necessary) : See previous 114 data submission for location data.

ID No.: _________ Lati tude: _______________ 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 14.3 mg /dscf

____ 1

____ PM10 Percent mg /dscf

_________ PM2.5 Percent mg /dscf

_________ Total Fluorides Percent mg /dscf

_________ Hydrogen Fluorides Percent mg /dscf

_________ POM Percent 49.4 mg /dscf

____ 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

. Bag cleaning method:

__ X

__ Pulse jet

_____ Reverse air

_____ Shaker

_____ Other (describe)

_________________________________________________

5

. P ressure mode of operation: p ositive pressure X n egative pressure

6

. Typical gas temperature: inlet ° F outlet 87 ° F

7

. Gas flow rate: 45000 acfm (at bag house outlet) 43000 dscfm

8

. Pressure drop: 6 inches water column (in. H 2 O)Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 19 of 20 9

. Air to cloth ratio: cfm/sf or fpm

10

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

Source ID No(s). Description(s)

Green Mill Anode Forming Operations

11

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

control device is operating properly :

_______ V olumetric flow rate

____________ F an amperage

_______ Visible emissions opacity

____________ P ressure drop

O ther (specify): % Fan run (vs motor capacity)

. % Coke feed (vs capacity).

12

. What level of a monitored operati onal parameter triggers corrective action?

_______ V olumetric flow rate (acfm)

____________ F an amperage (amps)

_______ Visible emissions opacity (%)

____________ P ressure drop (in. H 2 O)

O ther (specify): % Fan capacity

- >70%

. % Coke feed

- >40%

.

13

. Has the collected dust been analyzed?

_____ Yes

__ X

__ 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).

14

. Additional comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 20 of 20 Table 5 Other Air Pollution Control Devices

1

. Control d evice description and ID number ( or numbers, if several identical control devices are used to control a given emission source ) : Liquid pitch scrubber (67A)

2

. Stack or vent location of each control device ( use NAD83 and include six decimal places and add rows as necessary) : See previous 114 data submission for location data.

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 = Eng ineering judgment 3 = Manufacturer specs. 4 = Title V permit application 5 = Other (specify) _______________________

4

. P ressure mode of operation: X p ositive pressure n egative pressure

5

. Typical gas temperature: inlet ° F outlet ° F Not known

6

. Gas flow rate: acfm Specify location: _______________________________

dscfm Not known

7

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

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

Pitch Tank 1 Liquid pitch storage.

Pitch Tank 2 Liquid pitch storage.

Pitch Tank 3 Liquid pitch storage.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 21 of 20 8

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

control device is operating properly :

Visible emissions opacity V olumetric flow rate

P ressure drop

O ther (specify): Oil and water scrubber pumps amps and output pressure.

9

. What level of a monitored operati onal parameter triggers corrective action ?

Visible emissions opacity (%) V olumetric flow rate (acfm)

Pressure drop (in. H 2 O)

O ther (specify): </> 2.5Amps, <70 or >100 psi

.

10

. Has the collected dust or sludge been analyzed?

_____ Yes

__ X

__ 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 re sults from the Toxicity Characteristic Leaching Procedure (TCLP).

11

. Additi onal comments and information:Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 22 of 20 PART C: START

- UPS AND SHUTDOWNS

Please provide the information in Table 6 and questions below for each Subpart LL p otline during start

- up (the commencement of operation for any purpose) and shutdown (the cessation of operation for any purpose) operatio ns. For the purposes of Part C of Enclosure 1 start

- up and shutdown refers to the commencement and cessation of operations of a potline, not of an individual pot (e.g. after anode changes).

1 6

. Please provide a rationale, if applicable, for why application of the Subpart LL standards to

a potline during start

- up or shutdown is not practica b l e economically or technologically

Not practicable economica lly: EPA Reference Methods 14 and 14A are designed to

measure TF roof emissions over only a subset of the smelting pots operating in a pot room

(roughly 10 or 12 pots out of 130 or 150), with the assumption that the pots being sampled

represent the entir e potline during steady

- state operation . During potline startup, pots

located under a Method 14 or 14A sampling system do not represent the entire potline

because pots throughout the room are in various stages of startup or non

- steady

- state

operation. So , it is not technically practicable to either establish a standard for startup or

show compliance with a startup standard using the available EPA Reference Method.

Establishing a standard for startups is further complicated by the fact that startups are r are

and the conditions of a startup (and associated emissions) will vary depending on whether a

potline was shut down by an emergency power loss (e.g., an ice storm) or whether the

potline was intentionally shut down in a controlled manner. Work practice standards are

the only practicable means of regulating emissions during an aluminum potline startup.

Collecting Method 14 or 14A samples representative of an the entire potline is not

economically practicable because this would require the installation and operation of 12 or

13 separate Reference Method sampling systems in each potroom to collect representative

compliance samples. These sampling systems typically cost more than $250,000 each to

install and this level of expenditure is not practicable fo r the rare occasion of startup at an

individual potline.

Not practicable technologically: _______________________________________________

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 23 of 20 1 7

. Do you have test data that show any potline hazardous air pollutant (HAP) emissions during a start

- up or shutdown? (Check one)

_ X _ Yes ___ No

We have had one potline startup during the last 5 years, which began March 1, 2011 and is

on

- going. Data from this startup has been included with this submission.

If yes:

a

. Provide a copy of the test data.

b

. Describe the operating conditions (e.g. tons of aluminum produced per day) at the time

of the testing.

__ Testing is performed using an alternate testing procedure as allowed by Primary

MACT. A continuous emissions monitor (CEM) is used to monitor Hydrogen

Fluoride, and a correlation with EPA Test Method 14 is used to determine Total

Fluoride. Since the production changes daily during startup, a sheet with daily values

has been included.

_

1 8

. Do you have an operating plan to minimize emissions during start

- up and/or shutdown (e.g.

a SS Pla n) ? ( CHECK one)

____ X ____ Yes

____________ No

If “Yes,” please provide a copy of the operating plan

.

19

. Please indicate below how often you perform the following activities during start

- up of your potlines by adding the following codes: A, S, N for A lways, S ometimes, or N ever.

__ A

__ a. Develop a potroom/potline start

- up schedule before start

- up

__ A

__ b

. Perform daily assessment of start

- up pro gress and any schedule changes

__ A

__ c

. Keep records of number of pots started per day

__ A

__ d

. Bring potroom/ potline scrubbers and exhaust fans on line prior to energi zing

first cell to be restarted

__ S

__ e

. Supply alumina at a higher rate t han during normal pot operation

If so, how much higher?

__ Varies ___(percent)

__ S

__ f

. Keep pots covered during start

- up

__ S

__ g

. Limit removal of covers or panels to pots being worked on

__ A

__ h

. Keep primary capture/control system operating at all times during the start

- up

__ A

__ i. Monitor pot lines frequently during start

- up to identify sick or unstable pots

If so, do you u s e the following methods to manage a “sick” or unstable pot

__ Y

__ Adjust exhaust flow from pots

__ Y

__ Adjust cell voltage and feeding levels

__ Y

__ Monitor and adjust anode current and liquid levelEnclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 24 of 20 _____ Other corrective procedures. Please describe the corre ctive procedures applie d (use additional pages if needed):

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

_______________________________________________________

2 0

. Please list any additional start

- up activities in the space below.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 25 of 20 Table 6 D escription of most recent potline start

- up and shutdown of each potline (Make additional copies this table as needed)

Potline ID

(as assigned in

the schematic of question 7) Date(s), du ration, and d escription (e.g. planned shutdown for ..., or emergency shutdown due to ...) of

start

- up or shutdown Was the start

- up or shutdown covered by a

contingency plan for controlling emissions? (Y/N) What actions were taken to minimize emissions?

Line 1 Shutdown June 30, 2001 due to NW power crisis. Restarted January 15, 2005. Down 1295 days. Y Followed SSM plan and startup order.

Line 2 Shutdown January 31, 2001 due to NW power crisis. Restarted March 1, 2011. Down 3681 days. Y Followed SSM plan and startup order.

Line 3 Started July 17, 2000. Shutdown January 8, 2001 due to NW power crisis. Running 175 days. (Currently idled.) Y Followed SSM plan and startup order.

Line 5 Shutdown September 4, 2005 due to catastrophic power failure. Restarted October 10, 2005. Down 36 days. Y Followed SSM plan and startup order.Enclosure 1

Primary Aluminum Reduction Section 114 Enclosure 1

- April 22 , 2011 Page 26 of 20 PART D : PREVIOUSLY PERFORMED TESTING AND TEST REPORT DATA

2 1

. Submit emission test report result s for calendar year 2010 for polycyclic organic matter (POM) and total fluorides (TF) for any sources that have POM and/or TF emissions standards under Subpart LL. If available, submit emission test report results for any testing conducted from January 1, 20 06 to the present for metal HAP (i.e. antimony, arsenic, beryllium, cadmium, chromium, hexavalent chromium, cobalt, lead, manganese, nickel, and selenium), TF, hydrogen fluoride (HF), particulate matter (PM), POM, speciated organic HAP data, and/or carbony l sulfide (COS) for primary aluminum sources that currently do not have emission standards for those pollutants under Subpart LL

.

We would prefer electronic copies of these reports, if available. If electronic copies of the test reports are not available, hard copies may be provided or test result summaries may be provided. The following details (at a minimum) must be included , if available :

(a) P ollutants and emission rates measured (e.g., lb/hr, gr/dscf, lb/ton),

(b) T he names of the test methods or pro cedures used,

( c ) I nformation on actual production or pr ocessing rates during the test,

( d ) For COS emission tests, the sulfur content of the coke and pitch used in the anodes at the time the testing was conducted, and

(e) A statement that the process and any control devices were operating normally during the test, or if not, identify any abnormal or unrepresentative conditions.

2 2

. If emission controls were installed or upgraded for primary aluminum sources after October 7, 1997 to control emissions of POM from prebake potlines, emissions of POM from existing pitch storage tanks, and/or emissions of COS , please also include test reports

, if available, including the information specified in 2 1 (a) through ( e ), for the most rec ent emission testing that was performed before these controls were installed or upgraded and identify th em as “pre

- MACT test reports.” Not applicable.

2 3

. Has any air monitoring , such as Fourier Transform Infrared (FTIR) s pectroscopy

, been performed at your facility to measure COS concentration and/or emission s of sulfur

oxides ? If so, please provide the most recent data for a normal operating time period

. Please include a description of the locations of sampling (reference the schemat ic submitted in response to question 7) , sampling technique, duration of sampling, production rate during sampling, and potroom operations performed during the sampling. Any available data has been submitted by our corporate office.

2 4

. Has any air monit oring, such as FTIR s pectroscopy, been performed at your facility to

measure emissions of HF at the same time that TF samples were collected from the roof monitor? If so, please provide the most recent data for a normal operating time period.

Please include a description of the locations of sampling (reference the schematic submitted in response to question 7), sampling technique, duration of sampling, production rate during sampling, and potroom operations performed during the sampling.Enclosure 2

Primary Aluminum Reduction Section 114 Enclosure 2

- April 22 , 2011 Page 1 of 3 Test Procedures, Methods, and Reporting Requirements for the Information Collection Request for the Primary Aluminum Reduction Source Category

This document provides an overview of approved methods, target pollutant s and units of

measure, a nd reporting requirements for the primary aluminum reduction source category. See

Enclosure 3 for details about EPA’s authority under the Clean Air Act (CAA) section 114 (42

U.S.C. 741 4 ) to request source emission test data. All recipients must complete and submit test

results by May 31 , 2011

. This document will be referred to as the ‘primary aluminum reduction test program.’ The do cument is organized as follows:

1

. 0 Sampling and Chemical An alysis Procedures and Methods for M etallic HAP (including speciated hexavalent chromium)

2.0 How to Report Data

3.0 How to Submit Data

4.0 Co ntact Information for Questions on Test Plan and Reporting

1.0 Sampling and Chemical Analysis Procedures and Methods for Metallic HAP (including speciated hexavalent chromium)

1 .1 Sampling

- Bag House and Electrostatic Precipitator (ESP) Particulate Matter

Sample and analyze representative particulate matter (e.g. in the hoppers) collected by each of the bag houses or ESP used to control particulate matter emissions from primary aluminum potlines

. In cases where solids from different compartments of a single bag

house or ESP are collected in multiple hoppers or multiple collection sacks, a sing le composite sample will be adequate. Also, if multiple potlines of the same type (e.g. HSS, SWPB, CWPB1, etc.) are supplied with alumina from the same alumina storage vessel, sampling of representative particulate matter from the bag house or ESP associa ted with one of those potlines will be adequate

. Sampling should be conducted once per day for five consecutive operating days with a clean uncontaminated scoop or similar apparatus

. A ll samples collected should be the approximately the same weight and sto red in a clean

air

- tight container.

Guidance on sample collection can be found in of Chapter 4 of the document Superfund Program Representative Sampling Guidance, Volume 1: Soil (EPA 540/R

- 95/141), which is available through the following link:

http://www. epa.gov/tio/download/char/sf_rep_samp_guid_soil.pdf

1

. 2 Sampling

– Wet Scrubber Sludge , Injected Slurry (if applicable), and Discharge Water

Sample and analyze a representative grab sample of the scrubber sludge , injected slurry (if applicable)

, and any aqueous blowdown stream discharged from the wet scrubber. If a separate stream of scrubber blowdown is discharged from the scrubber, collect a representative grab sample of this stream. Also, if multiple potlines of the same type (e.g.
HSS, SWPB, CWPB1, etc.) are supplied with alumina from the same alumina storage vessel, sampling of representative scrubber sludge, injected slurry (if applicable), and any aqueous blowdown stream from the wet scrubber associated with one of those potlines

will be ad equate

. Sampling should be conducted once per day for five consecutiveEnclosure 2

Primary Aluminum Reduction Section 114 Enclosure 2

- April 22 , 2011 Page 2 of 3 operating days. All samples collected should be the approximately the same weight or

volume and stored in a clean container.

1.3 Chemical Analysis

Analyze each sample of bag house or el ectrostatic precipitator particulate matter

, scrubber sludge , injected slurry (if any), and scrubber blowdown (if any) for individual

HAP metals as listed in Table 1 .1. Also analyze each sample for hexavalent chromium

. Methods for chemical analysis are given in Table 1 .2.

Table 1.1 HAP Metals

Antimony Arsenic Beryllium

Cadmium Chromium Hexavalent Chromium

Cobalt Lead Manganese

Nickel Selenium

Table 1 .2 Methods for Analysis of Samples

Analyte Procedure

HAP metals listed

in Table 1 .1 EPA Method 3051A digestion followed by ICP

- MS

as detailed in EPA Method 6020

Hexavalent

chromium EPA Method 3060A and EPA Method 218.6:

Extraction and Cr +6 Ion Chromatography

2.0 How to Report Data

2

. 1 Reporting Bag House or Electrostatic Precipitator Particulate Matter

, Wet Scrubber Sludge, Injected Slurry, and Discharge Water Chemical Analyses

You must report the results of the chemical analyses of your bag house or electrostatic precipitator particulate matter and wet scrubber sludge, injected slurry, and discharge

water in a Microsoft ® Excel Template which is provided

. If more than one sample is analyzed, y ou must make a copy of the worksheet and update the source ID in order to distinguish between each analysi s of particulate matter collected from each selected bag house. After completing the worksheet, you must also submit an electronic copy of the chemical analysis report (PDF format preferred).

2.2 Calculating and Reporting Values Measured Below Method Detection Levels

See Appendix C

– Guidance for calculating and reporting measurements less than detection levels for emissions data collection (ICR) programs

.Enclosure 2

Primary Aluminum Reduction Section 114 Enclosure 2

- April 22 , 2011 Page 3 of 3 3.0 How to Submit Data

Use one of three transmittal methods listed below. In order to avoid dupl icate data and keep all data for a particular facility together, we request that you submit all of the data requested from your company in the same way. To submit your data:

• E

- mail an electronic copy of all requested files to primaryicr@epa.gov

.

• If the files are too large for your e

- mail system, you may upload the electronic files to a FTP site; if you would like to use this option, send an email to bahner@rti.org for

instructions on how to access the site.

• Mail a CD or DVD containing an electronic copy of all requested files to the EPA address shown in your Section 114 letter.

If you are submitting CBI, you must mail a separate CD or DVD containing only the CBI portion of your data to the E PA address shown in your Section 114 letter.

4 .0 Contact Information for Questions on Test Plan and Reporting

For questions on the primary aluminum source category , contact:

David Putney (U.S. EPA) (919) 541

- 2016 putney.david@epa.gov

OR

Rochelle Boyd (U.S. EPA) (919) 541

- 1390 boyd.rochelle@epa.gov

For questions on the test methods contact:

Gerri Garwood (U.S. EPA) (919) 541

- 2406

g arwood.gerri@epa.gov

OR

Raymond Merrill (U.S. EPA) (919) 541

- 5225 merrill.raymond@epa.gov

For questions on uploading files to the FTP site, contact:

Mark Bahner (RTI, International) (919) 541

- 6016 bahner@rti.orgAPPENDIX A

Primary Aluminum Reduction Section 114 Appendix A

- April 2 2 , 2011 Page 1 of 3 Abbreviations

, Acronyms , and Unit Conversions

acf actual cubic feet

acfm actual cubic feet per minute

acm actual cubic meters

acmm actual cubic meters per minute

ADL above detection level

APC air pollution control

ASTM American Society for Testing and Materials

atm atmospheres (unit of pressure)

BDL below detection level

Btu/hr Britis h thermal units per hour

Btu/scf British thermal units per standard cubic foot

CAA Clean Air Act

CARB California Air Resources Board

CBI confidential business information

CEMS continuous emission monitoring system

CFR Code of Federal Regulations

CO carbon monoxide

COS carbonyl sulfide

Cr chromium

CS 2 carbon disulfide

CTM Conditional Test Method day/yr days per year

°C degrees Celsius

° F degrees Fahrenheit

D/F dioxins and furans

DLL detection level limited

dscf dry standard cubic feet

dscfm dry standard cub ic feet per minute

dscm dry standard cubic meters

dscmm dry standard cubic meters per minute

EPA U.S. Environmental Protection Agency

ERT Electronic Reporting Tool

E SP electrostatic precipitator

ft foot or feet

ft 2 square feet

ft 3 cubic feet fpm feet per minute (acfm divided by ft 2 of filter area) fps feet per second gal gallon

gpm U.S. gallons per minute gr/dscf grains per dry standard cubic foot

g gram HAP hazardous air pollutants

HCl hydrogen chloride

HCN hydrogen cyanide

HF hydrogen fluorideAPPENDIX A

Primary Aluminum Reduction Section 114 Appendix A

- April 2 2 , 2011 Page 2 of 3 Hg mercury hr hour or hours hr/day hours per day

ICR information collection request

in inch or inches

in

. H 2 O inches of water (pressure drop) kg kilogram

kPa kilopascals

kv kilovolt

kw

- hr kilowatt hour

lb pound lb/day pounds per day lb/gal pounds per U.S. gallon

lb/hr pounds per hour

lb/ton pounds per ton

m meter

m 3 cubic meters

MACT maximum achievable control technology

min minute or minutes Mg megagram

mg milligram mg/kg milligram per kilogram mg/l milligrams per liter

MM btu/hr millions of British thermal units per hour

MM scf millions of standard cubic feet

MM lb/yr million pounds per year μg/m 3 microgram per cubic meter

μm micrometer

NAICS North American Industry Classification System

NaOH sodium hydroxide

NESHAP National Emission Standards for Hazardous Air P ollutants

NO

x nitrogen oxides OAQPS Office of Air Quality Planning and Standards

OTM Other Test Method

PAH polynuclear aromatic hydrocarbon

PAL primary aluminum reduction facility pdf Image file format produced with Adobe© or similar software

PM particulat e matter

PM 10 particulate matter that is 10 micrometers or less in diameter

PM 2.5 particulate matter that is 2.5 micrometers or less in diameter

POM polycyclic organic matter

ppmv parts per million by volume

ppmw parts per million by weight

RATA Relative Accuracy Test Audit

% percent

s second or seconds

scf standard cubic feet

scf/hr standard cubic feet per hourAPPENDIX A

Primary Aluminum Reduction Section 114 Appendix A

- April 2 2 , 2011 Page 3 of 3 scfm standard cubic feet per minute

scm standard cubic meters

SO 2 sulfur dioxide

SPPD Sector Policies and Programs Division

SS start

- up or shutdow n TCLP toxicity characteristic leaching procedure

TF total fluorides

THC total hydrocarbons tpd tons (short) per day tph tons (short) per hour

tpy tons (short) per year TSP total suspended particulate

vol% volume percent, or percent by volume

wt% weight p ercent, or percent by weight

yr year

To convert from To Multiply by

°C °F m ultiply by 1.8 , then add 32

°F °C subtract 32, then multiply by 0.556

ft m 0. 3 048

ft/min m/min 0. 3 048

ft 2 m 2 0.0929

ft 3 m 3 0.028

g lb 0.0022 g/m 3 lb/ft 3 0.0000624

gr lb 0.000143 gr/dscf mg/dscm 2,290

in

. H 2 O mm H 2 O 25.4

k g/hr lb/hr 2.205

lb g 454

lb gr 7000

lb/ft 3 g /m 3 16,000

lb/hr k g/hr 0.454

m ft 3.28

m/min ft/min 3.28

mm H 2 O in H 2 O 0.0394

m 2 ft 2 10.76 mg/dscm gr/dscf 0.00044

m 3 ft 3 35.31
Mg ton 1.1

ton (short) M g 0.907APPEND IX B

Primary Aluminum Reduction Section 114 Appendix B

- April 2 2 , 2011 Page 1 of 5 

### List of Hazardous Air Pollutants (HAP )

CAS

Number Chemical Name

Antimony Compounds Arsenic Compoun ds (inorganic including arsine) Beryllium Compounds Cadmium Compounds Chromium Compounds Cobalt Compounds

Coke Oven Emissions Cyanide Compounds 1

Glycol ethers 2

Lead Compounds Manganese Compounds Mercury Compounds

Fine mineral fibers 3

Nickel Compounds Polycylic Organic Matter 4 ( Report individual polycyclic aromatic hydrocarbons by CAS number). Radionuclides (including radon) 5

Selenium Compounds

75

- 07

- 0 Acetaldehyde

60

- 35

- 5 Acetamide

75

- 05

- 8 Acetonitrile

98

- 86

- 2 Acetophenone

53

- 96

- 3 2

- Acetylaminofluorene

107

- 02

- 8 Acrolein

79

- 06

- 1 Acrylamide

79

- 10

- 7 Acrylic acid

107

- 13

- 1 Acrylonitrile

107

- 05

- 1 Allyl chloride

92

- 67

- 1 4

- Aminobiphenyl

62

- 53

- 3 Aniline

90

- 04

- 0 o

- Anisidine

1332

- 21

- 4 Asbestos

71

- 43

- 2 Benzene (including benzene from gasoline)

92

- 87

- 5 Benzidine

98

- 07

- 7 Benzotrichloride

100

- 44

- 7 Benzyl chloride

92

- 52

- 4 Biphenyl

117

- 81

- 7 Bis(2

- ethylhexyl)phthalate (DEHP)

542

- 88

- 1 Bis(chloromethyl)ether

75

- 25

- 2 Bromoform

106

- 99

- 0 1,3

- Butadiene

156

- 62

- 7 Calcium cyanamideAPPEND IX B

Primary Aluminum Reduction Section 114 Appendix B

- April 2 2 , 2011 Page 2 of 5 CAS

Number Chemical Name

133

- 06

- 2 Captan

63

- 25

- 2 Carbaryl

75

- 15

- 0 Carbon disulfide

56

- 23

- 5 Carbon tetrachloride

463

- 58

- 1 Carbonyl sulfide

120

- 80

- 9 Catechol

133

- 90

- 4 Chloramben

57

- 74

- 9 Chlordane

7782

- 50

- 5 Chlorine

79

- 11

- 8 Chloroacetic acid

532

- 27

- 4 2

- Chloroacetophenone

108

- 90

- 7 Chlorobenzene

510

- 15

- 6 Chlorobenzilate

67

- 66

- 3 Chloroform

107

- 30

- 2 Chloromethyl methyl ether

126

- 99

- 8 Chloroprene

1319

- 77

- 3 Cresols/Cresylic acid (isomers and mixture)

95

- 48

- 7 o

- Cresol

108

- 39

- 4 m

- Cresol

106

- 44

- 5 p

- Cresol

98

- 82

- 8 Cumene

94

- 75

- 7 2,4

- D, salts and esters

3547

- 04

- 4 DDE

334

- 88

- 3 Diazomethane

132

- 64

- 9 Dibenzofurans

96

- 12

- 8 1,2

- Dibromo

- 3

- chloropropane

84

- 74

- 2 Dibutylphthalate

106

- 46

- 7 1,4

- Dichlorobenzene(p)

91

- 94

- 1 3,3

- Dichlorobenzidene

111

- 44

- 4 Dichloroethyl ether (Bis(2

- chloroethyl)ether)

542

- 75

- 6 1,3

- Dichloropropene

62

- 73

- 7 Dichlorvos

111

- 42

- 2 Diethanolamine

121

- 69

- 7 N,N

- Diethyl aniline (N,N

- Dimethylaniline)

64

- 67

- 5 Diethyl sulfate

119

- 90

- 4 3,3

- Dimethoxybenzidine

60

- 11

- 7 Dimethyl aminoazobenzene

119

- 93

- 7 3,3'

- Dimethyl benzidine

79

- 44

- 7 Dimethyl carbamoyl chloride

68

- 12

- 2 Dimethyl formamide

57

- 14

- 7 1,1

- Dimethyl hydrazine

131

- 11

- 3 Dimethyl phthalate

77

- 78

- 1 Dimethyl sulfate

534

- 52

- 1 4,6

- Dinitro

- o

- cresol, and saltsAPPEND IX B

Primary Aluminum Reduction Section 114 Appendix B

- April 2 2 , 2011 Page 3 of 5 CAS

Number Chemical Name

51

- 28

- 5 2,4

- Dinitrophenol

121

- 14

- 2 2,4

- Dinitrotoluene

123

- 91

- 1 1,4

- Dioxane (1,4

- Diethyleneoxide)

122

- 66

- 7 1,2

- Diphenylhydrazine

106

- 89

- 8 Epichlorohydrin (l

- Chloro

- 2,3

- epoxypropane)

106

- 88

- 7 1,2

- Epoxybutane

140

- 88

- 5 Ethyl acrylate

100

- 41

- 4 Ethyl benzene

51

- 79

- 6 Ethyl carbamate (Urethane)

75

- 00

- 3 Ethyl chloride (Chloroethane)

106

- 93

- 4 Ethylene dibromide (Dibromoethane)

107

- 06

- 2 Ethylene dichloride (1,2

- Dichloroethane)

107

- 21

- 1 Ethylene glycol

151

- 56

- 4 Ethylene imine (Aziridine)

75

- 21

- 8 Ethylene oxide

96

- 45

- 7 Ethylene thiourea

75

- 34

- 3 Ethylidene dichloride (1,1

- Dichloroethane)

50

- 00

- 0 Formaldehyde

76

- 44

- 8 Heptachlor

118

- 74

- 1 Hexachlorobenzene

87

- 68

- 3 Hexachlorobutadiene

77

- 47

- 4 Hexachlorocyclopentadiene

67

- 72

- 1 Hexachloroethane

822

- 06

- 0 Hexamethylene

- 1,6

- diisocyanate

680

- 31

- 9 Hexamethylphosphoramide

110

- 54

- 3 Hexane

18540

- 29

- 9 Hexavalent chromium

302

- 01

- 2 Hydrazine

7647

- 01

- 0 Hydrochloric acid

7664

- 39

- 3 Hydrogen fluoride (Hydrofluoric acid)

123

- 31

- 9 Hydroquinone

78

- 59

- 1 Isophorone

58

- 89

- 9 Lindane (all isomers)

108

- 31

- 6 Maleic anhydride

67

- 56

- 1 Methanol

72

- 43

- 5 Methoxychlor

74

- 83

- 9 Methyl bromide (Bromomethane)

74

- 87

- 3 Methyl chloride (Chloromethane)

71

- 55

- 6 Methyl chloroform (1,1,1

- Trichloroethane)

60

- 34

- 4 Methyl hydrazine

74

- 88

- 4 Methyl iodide (Iodomethane)

108

- 10

- 1 Methyl isobutyl ketone (Hexone)

624

- 83

- 9 Methyl isocyanate

80

- 62

- 6 Methyl methacrylateAPPEND IX B

Primary Aluminum Reduction Section 114 Appendix B

- April 2 2 , 2011 Page 4 of 5 CAS

Number Chemical Name

1634

- 04

- 4 Methyl tert butyl ether

101

- 14

- 4 4,4

- Methylene bis(2

- chloroaniline)

75

- 09

- 2 Methylene chloride (Dichloromethane)

101

- 68

- 8 Methylene diphenyl diisocyanate (MDI)

101

- 77

- 9 4,4'¬

- Methylenedianiline

91

- 20

- 3 Naphthalene

98

- 95

- 3 Nitrobenzene

92

- 93

- 3 4

- Nitrobiphenyl

100

- 02

- 7 4

- Nitrophenol

79

- 46

- 9 2

- Nitropropane

684

- 93

- 5 N

- Nitroso

- N

- methylurea

62

- 75

- 9 N

- Nitrosodimethylamine

59

- 89

- 2 N

- Nitrosomorpholine

56

- 38

- 2 Parathion

82

- 68

- 8 Pentachloronitrobenzene (Quintobenzene)

87

- 86

- 5 Pentachlorophenol

108

- 95

- 2 Phenol

106

- 50

- 3 p

- Phenylenediamine

75

- 44

- 5 Phosgene

7803

- 51

- 2 Phosphine

7723

- 14

- 0 Phosphorus

85

- 44

- 9 Phthalic anhydride

1336

- 36

- 3 Polychlorinated biphenyls (Aroclors)

1 120

- 71

- 4 1,3

- Propane sultone

57

- 57

- 8 beta

- Propiolactone

123

- 38

- 6 Propionaldehyde

114

- 26

- 1 Propoxur (Baygon)

78

- 87

- 5 Propylene dichloride (1,2

- Dichloropropane)

75

- 56

- 9 Propylene oxide

75

- 55

- 8 1,2

- Propylenimine (2

- Methyl aziridine)

91

- 22

- 5 Quinoline

106

- 51

- 4 Quinone

100

- 42

- 5 Styrene

96

- 09

- 3 Styrene oxide

1746

- 01

- 6 2,3,7,8

- Tetrachlorodibenzo

- p

- dioxin

79

- 34

- 5 1,1,2,2

- Tetrachloroethane

127

- 18

- 4 Tetrachloroethylene (Perchloroethylene)

7550

- 45

- 0 Titanium tetrachloride

108

- 88

- 3 Toluene

95

- 80

- 7 2,4

- Toluene diamine

584

- 84

- 9 2,4

- Toluene diisocyanate

95

- 53

- 4 o

- Toluidine

8001

- 35

- 2 Toxaphene (chlorinated camphene)

120

- 82

- 1 1,2,4

- TrichlorobenzeneAPPEND IX B

Primary Aluminum Reduction Section 114 Appendix B

- April 2 2 , 2011 Page 5 of 5 CAS

Number Chemical Name

79

- 00

- 5 1,1,2

- Trichloroethane

79

- 01

- 6 Trichloroethylene

95

- 95

- 4 2,4,5

- Trichlorophenol

88

- 06

- 2 2,4,6

- Trichlorophenol

121

- 44

- 8 Triethylamine

1582

- 09

- 8 Trifluralin

540

- 84

- 1 2,2,4

- Trimethylpentane

108

- 05

- 4 Vinyl acetate

593

- 60

- 2 Vinyl bromide

75

- 01

- 4 Vinyl chloride

75

- 35

- 4 Vinylidene chloride (1,1

- Dichloroethylene)

1330

- 20

- 7 Xylenes (isomers and mixture)

95

- 47

- 6 o

- Xylenes

108

- 38

- 3 m

- Xylenes

106

- 42

- 3 p

- Xylenes

NOTE: For all listings above which contain the word "compounds" and for glycol

ethers, the following applies: Unless otherwise specified, these listings are defined as
including any unique chemical substance that contains the named chemical (i.e.,
antimony, arsenic, etc.) as part of that chemical's infrastructure.

1 : X'CN where X = H' or any other group where a formal dissociation may occur. For
example KCN or Ca(CN)2

2 : Includes mono

- and di

- ethers of ethylene glycol, diethylene glycol, and triethylene
glycol R

- (OCH2CH2)n

- OR' where :

n = 1, 2, or 3

R = alkyl or aryl groups

R' = R, H, or groups which, when removed, yield glycol ethers with the structure:

R

- (OCH2CH)n

- OH. Polymers are excluded from the glycol category. Also

excludes ethylene glycol monobutyl ether (EGBE) (2

- Butoxyethanol)
(Chemical Abstract Service (CAS) No. 111

- 76

- 2) and s urfactant alcohol
ethoxylates and their derivatives (SAED)

.

3 : Includes mineral fiber emissions from facilities manufacturing or processing glass,
rock, or slag fibers (or other mineral derived fibers) of average diameter 1

micrometer or less.

4 : Includes organic compounds with more than one benzene ring, and which have a
boiling point greater than or equal to 100o C. Report individual polycyclic aromatic
hydrocarbons by CAS number.

5 : A type of atom which spontaneously undergoes radioactive decay.APPENDIX C

Primary Aluminum Reduction Section 114 Appendix C

- April 2 2 , 2011 Page 1 of 1 Guidance For Calculating And Reporting Measurements Less Than

Method Detection Levels For Test Data Submitted in Response

to Information Collection Request (ICR) Programs

Identify the status of measured values relative to detection levels on the spreadsheet using the following descriptions:

• BDL (below detection level)

– all analytical values used to calculate and report a fabric filter par ticulate matter

, electrostatic precipitator particulate matter

, sludge, or scrubber

blowdown metal analysis are less than the laboratory ’s reported detection level(s);

• DLL (detection level li mited)

– at least one

, but not all

, values used to calculate and

report a fabric filter particulate matter

, electrostatic precipitator particulate matter

, sludge,

or scrubber blowdown metal analysis are less than the laboratory’s reported detection level(s); or

• ADL (above detection level)

– all analytical values used to calculate and report a fabric filter particulate matter

, electrostatic precipitator particulate matter

, sludge, or scrubber

blowdown metal analysis are greater than the laboratory’s reported detection level(s).

For each repo rted emissions value, insert the appropriate flag (i.e. BDL, DLL , or ADL) in

the Note line of the Microsoft® Excel emission t est spreadsheet template.

When reporting and calculating individual test run data:

• For analytical data reported from the lab as “nondetect” or “below detection level;”

− Include a brief description of the procedures used to determine the analytical

detection levels in the Note line of the Microsoft® Excel emission t est spreadsheet template.

− Describe these procedures completely in a s eparate attachment including the measurements made, the standards used, and the statistical procedures applied.

− Report the calculated emissions concentration or rate result as a bracketed “less than” detection level value (e.g., [<0.0105]) in the Microsoft ® Excel emission t est spreadsheet template

− Report as numerical values (i.e., no brackets or < symbol) any analytical data measured above the detection level including any data between the analytical detection level and a laboratory

- specific reporting or qu antification level (i.e., flag as ADL).