Appendix 1

Draft Development of the Risk and Technology Review (RTR) Emissions Dataset 

for the Primary Aluminum Reduction Source Category
1

MEMORANDUM

TO: David Putney, Environmental Protection Agency (EPA)

FROM: David Green, RTI International

Matt Hakos, RTI International

DATE: October 17, 2014

SUBJECT: Draft Development of the RTR Emissions Dataset for the Primary Aluminum Reduction 

Source Category

The purpose of this memorandum is to document the technical approach and rationale used to assign 

hazardous air pollutant (HAP) emissions data for primary aluminum reduction facilities. This work is 

being performed pursuant to section 112(f) of the Clean Air Act as part of the residual risk assessment 

for facilities that are subject to the National Emission Standards for Hazardous Air Pollutants 

(NESHAP) for Primary Aluminum Reduction Plants (40 CFR part 63, subpart LL).

I. Source-Specific Emissions, Emission Process Groups, and Facilities

Emissions estimates were developed for the following pollutant categories: speciated HAP metals, 

speciated polycyclic aromatic hydrocarbons (PAHs), speciated dioxins/furans (D/Fs), speciated 

polychlorinated biphenyls (PCBs), carbonyl sulfide (COS), and hydrogen fluoride (HF). Table 1 

summarizes the specific pollutants corresponding to these categories.

Table 1: Summary of Pollutant Categories

CAS Pollutant Category

Hazardous Air Pollutant Metals

7440360 Antimony Antimony Compounds

7440382 Arsenic Arsenic Compounds

7440417 Beryllium Beryllium Compounds

7440439 Cadmium Cadmium Compounds

18540299 Chromium (VI) Chromium Compounds

16065831 Chromium III Chromium Compounds

7440484 Cobalt Cobalt Compounds

7439921 Lead Lead Compounds

7439965 Manganese Manganese Compounds

7440020 Nickel Nickel Compounds

253 Selenium & Compounds Selenium Compounds

7439976 Mercury Mercury Compounds

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene Naphthalene

91576 2-Methylnaphthalene Polycyclic Organic Matter

83329 Acenaphthene Polycyclic Organic Matter

208968 Acenaphthylene Polycyclic Organic Matter

86737 Fluorene Polycyclic Organic Matter

85018 Phenanthrene Polycyclic Organic Matter
2

Table 1: Summary of Pollutant Categories

CAS Pollutant Category

120127 Anthracene Polycyclic Organic Matter

206440 Fluoranthene Polycyclic Organic Matter

129000 Pyrene Polycyclic Organic Matter

56553 Benz[a]Anthracene Polycyclic Organic Matter

218019 Chrysene Polycyclic Organic Matter

205992 Benzo[b]Fluoranthene Polycyclic Organic Matter

207089 Benzo[k]Fluoranthene Polycyclic Organic Matter

192972 Benzo[e]Pyrene Polycyclic Organic Matter

50328 Benzo[a]Pyrene Polycyclic Organic Matter

198550 Perylene Polycyclic Organic Matter

193395 Indeno[1,2,3-c,d]Pyrene Polycyclic Organic Matter

53703 Dibenzo[a,h]Anthracene Polycyclic Organic Matter

191242 Benzo[g,h,i,]Perylene Polycyclic Organic Matter

Dioxin Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin Dioxins/Furans as 2,3,7,8-TCDD TEQs

51207319 2,3,7,8-Tetrachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

57117416 1,2,3,7,8-Pentachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

57117314 2,3,4,7,8-Pentachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran Dioxins/Furans as 2,3,7,8-TCDD TEQs

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) Polychlorinated Biphenyls (Aroclors)

32598133 3,3',4,4'-TCB (PCB-77) Polychlorinated Biphenyls (Aroclors)

65510443

2',3,4,4',5-PeCB (PCB-123) Polychlorinated Biphenyls (Aroclors)

31508006 2,3',4,4',5-PeCB (PCB-118) Polychlorinated Biphenyls (Aroclors)

74472370 2,3,4,4',5-PeCB (PCB-114) Polychlorinated Biphenyls (Aroclors)

32598144 2,3,3',4,4'-PeCB (PCB-105) Polychlorinated Biphenyls (Aroclors)

57465288 3,3',4,4',5-PeCB (PCB-126) Polychlorinated Biphenyls (Aroclors)

52663726 2,3',4,4',5,5'-HxCB (PCB-167) Polychlorinated Biphenyls (Aroclors)

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) Polychlorinated Biphenyls (Aroclors)

32774166 3,3',4,4',5,5'-HxCB (PCB-169) Polychlorinated Biphenyls (Aroclors)
3

Table 1: Summary of Pollutant Categories

CAS Pollutant Category

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) Polychlorinated Biphenyls (Aroclors)

Carbonyl Sulfide and Hydrogen Fluoride

463581 Carbonyl Sulfide Carbonyl Sulfide

7664393 Hydrogen Fluoride Hydrogen Fluoride (Hydrofluoric Acid)

These pollutants are emitted from five emission process groups at primary aluminum reduction facilities. 

Table 2 lists the emissions process groups and their corresponding pollutant categories.

Table 2: Emission Process Groups

Emission Process 

Group

Source 

Classification 

Code

Emission 

Type

Pollutant Type Emitted

Metals PAHs D/Fs PCBs COS HF

Potline Stack (controlled) 30300199 Stack Y Y Y Y Y Y

Potline Roof Vent 30300107 Area Y Y Y Y * Y

Anode Bake Furnace 30300105 Stack Y Y Y Y Y

Anode Paste Plant 30300199 Stack Y Y Y Y

Pitch Storage Tank 30300104 Stack Y

* Assumed Zero

Emissions data were developed for fourteen individual facilitates. Table 3 details these facilities and the 

corresponding number of emission units in each emission process group.

Table 3: Summary of Facilities and Number of Process Group Emission Points

Facility 

Identifier Facility Name Reduction Cell Type

Potline 

Stack

Potline 

Roof 

Vent

Anode 

Bake 

Furnace

Anode 

Paste 

Plant

Pitch 

Storage 

Tank SPPD_FAC_01 Alcoa - Massena West CWPB1 3 11 1 1 1

SPPD_FAC_02 Alcoa - Warrick CWPB1 5 10 1 1 1

SPPD_FAC_03 Alcoa - Wenatchee CWPB1 4 8 1 1 1

SPPD_FAC_04 Alumax - Mt. Holly CWPB1 4 4 1 1 1

SPPD_FAC_05 Noranda Aluminum CWPB1 4 3 3 1 1

SPPD_FAC_06 Century Aluminum - Sebree CWPB1 6 6 1 1 1

SPPD_FAC_07 Ormet Primary Aluminum CWPB2 6 24 0 0 0

SPPD_FAC_08 Century Aluminum of KY CWPB3 2 8 1 1 1

SPPD_FAC_09 Intalco Aluminum SWPB 18 6 1 1 1

SPPD_FAC_10 Alcoa - Massena East HSS 2 4 0 0 0

SPPD_FAC_11 Century Aluminum of WV CWPB2 1 1 1 1 1

SPPD_FAC_12 Alcoa - Rockdale CWPB2 45 10 1 1 0

SPPD_FAC_13 Columbia Falls Aluminum VSS2 10 10 0 1 1

SPPD_FAC_14 Lake Charles Carbon NA * 0 0 2 1 1

CWPB1 = Center-worked prebake one SWPB = Side-worked prebake

CWPB2 = Center-worked prebake two HSS = Horizontal stud Soderberg

CWPB3 = Center-worked prebake three VSS2 = Vertical stud Soderberg 2

* NA = Not applicable. This facility only produces anodes and has no reduction cells
4

2. Limitations of Data Availability

In an effort to gather information on emissions from the Primary Aluminum Reduction source category, 

an information request was sent by the EPA to all operators of primary aluminum reduction plants in 

March of 2013. The associated responses were received in May through August 2013 and were utilized 

in the development of the emissions data described in this memorandum. Note that the performance test 

data presented in this memorandum is the average of the run-by-run data provided by facilities. In 

instances where an individual run was below detection limit (BDL), half of the detection limit was used 

in accordance with EPA guidance. If all runs at all tested facilities for a particular pollutant (or, within a 

given subcategory in the case of arsenic, cadmium and nickel testing on potline stacks and roof vents, 

see discussion in Section III.1.a, below) were BDL, the associated pollutant emissions were assumed to 

be zero. Run-by-run test data are not presented in this document, but are available in the test reports in 

the project docket (Docket ID No. EPA-HQ-OAR-2011-0797).

COS emissions are not regulated under the 1997 NESHAP. Thus, COS emissions are not routinely 

measured and limited COS emissions test data exist.

II. Development of Emission Rates for Modeling

1. HAP Metals

a. Potline Stack and Potline Roof Vent

Emission factors in units of pounds per ton aluminum produced (lb/ton Al) for speciated HAP metals 

were developed using available performance test data. Tables 4 and 5 detail the facilities for which 

performance test data were available and summarize the emission factors developed for this effort.

Potroom test data were available for 7 facilities. Emission factors (for all pollutants except arsenic, 

cadmium, and nickel) for the remaining 6 facilities that are equipped with potlines were developed as 

the average of the 7 test results for each pollutant. For arsenic, cadmium, and nickel, emission factors 

were based on averages of test results on a potline subcategory basis (as shown in Table 3). When only 

one test report was available for potroom HAP metal emissions for a particular potroom subcategory,

these emission factors were applied to the other units in the subcategory. Note that 13 of the 14 modeled 

facilities have potrooms.

Chromium (VI) was measured at 2 facilities. The average mass fraction of chromium (VI) (mass 

chromium (VI) per mass total chromium) for these 2 facilities was determined as follows:

Potline stack chromium (VI) mass fraction =

((

1.55 × 10−05

8.44 × 10−05) + (

3.71 × 10−05

8.50 × 10−04))

2

= 0.114

Potline vent chromium (VI) mass fraction =

((

1.26 × 10−04

1.23 × 10−03) + (

2.04 × 10−04

1.34 × 10−02))

2

= 0.0589

The average chromium (VI) mass fraction of these 2 facilities was applied to the total chromium values 

for the remaining 11 facilities (5 with test results, 6 with the average test result) to determine chromium 

(VI) emission factors in lb/ton aluminum. Chromium (III) for all 13 facilities was determined as the 

difference between total chromium and chromium (VI).

Mercury (pollutant number 7439976) emission factors and emission rates reported in this memo were 

modeled as three different species; elemental gaseous mercury (pollutant 200), gaseous divalent mercury

(pollutant 201) and particulate divalent mercury (pollutant 202). Emission factors for total mercury were 

multiplied by 0.80 for elemental gaseous mercury, 0.10 for gaseous divalent mercury, and 0.10 for 

particulate divalent mercury.

Commented [PD1]: Is this supposed to be “II”? If so, this would 

require changes to the subsequent headings. If not, where is “1”?
5

Table 4: Potline Stack HAP Metal Emission Factors

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA)-

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

(lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al)

7440360 Antimony 4.88E-05 4.88E-05 4.23E-05 3.48E-05 4.88E-05 1.61E-05 1.09E-04 5.78E-05 3.35E-05 4.85E-05 4.88E-05 4.88E-05 4.88E-05 N/A

7440382 Arsenic 2.11E-05 2.11E-05 1.68E-04 3.02E-05 2.11E-05 3.32E-05 3.44E-04 1.95E-04 0.00E+00 2.99E-04 3.44E-04 3.44E-04 2.99E-04 N/A

7440417 Beryllium 4.33E-05 4.33E-05 8.92E-07 5.17E-07 4.33E-05 1.03E-06 4.26E-06 2.84E-04 6.74E-07 1.21E-05 4.33E-05 4.33E-05 4.33E-05 N/A

7440439 Cadmium 1.82E-05 1.82E-05 4.43E-06 5.32E-05 1.82E-05 1.54E-06 0.00E+00 6.38E-05 6.32E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A

Total Chrome 3.05E-04 3.05E-04 3.13E-04 8.44E-05 3.05E-04 1.24E-04 1.99E-04 4.58E-04 1.09E-04 8.50E-04 3.05E-04 3.05E-04 3.05E-04 N/A

16065831 Chromium III 2.71E-04 2.71E-04 2.78E-04 6.89E-05 2.71E-04 1.10E-04 1.77E-04 4.06E-04 9.70E-05 8.12E-04 2.71E-04 2.71E-04 2.71E-04 N/A

18540299 Chromium (VI) 3.48E-05 3.48E-05 3.57E-05 1.55E-05 3.48E-05 1.41E-05 2.27E-05 5.21E-05 1.25E-05 3.71E-05 3.48E-05 3.48E-05 3.48E-05 N/A

7440484 Cobalt 2.98E-05 2.98E-05 5.03E-06 1.63E-05 2.98E-05 1.94E-06 6.10E-05 6.22E-05 2.59E-05 3.61E-05 2.98E-05 2.98E-05 2.98E-05 N/A

7439921 Lead 6.25E-04 6.25E-04 1.21E-04 1.86E-04 6.25E-04 7.63E-06 1.93E-03 9.62E-04 8.36E-04 3.34E-04 6.25E-04 6.25E-04 6.25E-04 N/A

7439965 Manganese 8.79E-04 8.79E-04 2.14E-04 8.25E-05 8.79E-04 4.75E-05 3.96E-03 5.34E-04 6.73E-04 6.42E-04 8.79E-04 8.79E-04 8.79E-04 N/A

7440020 Nickel 2.88E-04 2.88E-04 6.56E-04 1.11E-04 2.88E-04 9.81E-05 7.54E-04 1.96E-03 2.01E-03 1.59E-03 7.54E-04 7.54E-04 1.59E-03 N/A

253 Selenium & Compounds 1.27E-04 1.27E-04 8.86E-05 6.15E-05 1.27E-04 1.58E-05 4.89E-04 4.73E-05 6.71E-05 1.21E-04 1.27E-04 1.27E-04 1.27E-04 N/A

7439976 Mercury 7.14E-06 7.14E-06 6.26E-06 1.35E-05 7.14E-06 1.35E-06 8.70E-07 2.28E-05 1.95E-06 3.30E-06 7.14E-06 7.14E-06 7.14E-06 N/A

- Blue highlighted values are original information collection test results, all other values derived based on average of test results. N/A - no applicable emission unit at facility.

- Chromium (VI) mass fraction = 0.114.

Table 5: Potline Roof Vent HAP Metal Emission Factors

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA)-

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

(lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al)

7440360 Antimony 1.97E-03 1.97E-03 1.60E-04 7.70E-04 1.97E-03 3.87E-04 1.17E-02 1.08E-04 4.06E-04 2.29E-04 1.97E-03 1.97E-03 1.97E-03 N/A

7440382 Arsenic 4.43E-03 4.43E-03 6.44E-03 5.70E-03 4.43E-03 1.17E-03 4.52E-03 2.23E-04 0.00E+00 7.25E-03 4.52E-03 4.52E-03 7.25E-03 N/A

7440417 Beryllium 1.11E-04 1.11E-04 1.52E-05 6.97E-06 1.11E-04 3.05E-04 7.60E-05 3.06E-04 8.07E-06 5.73E-05 1.11E-04 1.11E-04 1.11E-04 N/A

7440439 Cadmium 1.71E-04 1.71E-04 9.56E-05 2.51E-04 1.71E-04 1.66E-04 0.00E+00 9.38E-05 2.20E-03 2.07E-04 0.00E+00 0.00E+00 2.07E-04 N/A

Total Chrome 3.08E-03 3.08E-03 2.24E-04 1.23E-03 3.08E-03 1.11E-03 1.78E-03 2.31E-03 1.51E-03 1.34E-02 3.08E-03 3.08E-03 3.08E-03 N/A

16065831 Chromium III 2.90E-03 2.90E-03 2.11E-04 1.10E-03 2.90E-03 1.04E-03 1.68E-03 2.18E-03 1.42E-03 1.32E-02 2.90E-03 2.90E-03 2.90E-03 N/A

18540299 Chromium (VI) 1.81E-04 1.81E-04 1.32E-05 1.26E-04 1.81E-04 6.54E-05 1.05E-04 1.36E-04 8.91E-05 2.04E-04 1.81E-04 1.81E-04 1.81E-04 N/A

7440484 Cobalt 6.55E-04 6.55E-04 4.78E-05 1.10E-04 6.55E-04 3.91E-05 3.00E-03 5.24E-04 4.61E-05 8.11E-04 6.55E-04 6.55E-04 6.55E-04 N/A

7439921 Lead 6.19E-03 6.19E-03 9.74E-04 7.38E-04 6.19E-03 3.51E-04 3.53E-02 1.51E-03 8.84E-04 3.64E-03 6.19E-03 6.19E-03 6.19E-03 N/A

7439965 Manganese 3.90E-03 3.90E-03 5.09E-04 1.42E-03 3.90E-03 3.80E-04 1.86E-03 7.52E-03 8.78E-03 6.84E-03 3.90E-03 3.90E-03 3.90E-03 N/A

7440020 Nickel 7.95E-03 7.95E-03 4.94E-03 8.82E-03 7.95E-03 1.01E-02 1.19E-02 2.36E-02 2.69E-03 4.83E-02 1.19E-02 1.19E-02 4.83E-02 N/A

253 Selenium & Compounds 1.63E-03 1.63E-03 1.66E-04 1.02E-04 1.63E-03 1.66E-04 9.51E-03 8.20E-05 8.13E-04 5.73E-04 1.63E-03 1.63E-03 1.63E-03 N/A

7439976 Mercury 3.23E-05 3.23E-05 9.55E-06 4.61E-05 3.23E-05 1.31E-05 8.36E-07 8.82E-05 5.42E-05 1.41E-05 3.23E-05 3.23E-05 3.23E-05 N/A

- Blue highlighted values are original information request test results, all other values derived based on average of test results. N/A - no applicable emission unit at facility.

- Chromium (VI) mass fraction = 0.0589.
6

Emission rates in units of tons pollutant per year (ton/yr) on an individual emission point basis were 

developed by multiplying the emission factor (lb/ton Al) of a pollutant by the associated facility’s

aluminum production capacity and then dividing by the number of emission release points at the facility, 

as shown:

Emission rate per point (

ton pollutant

year ) = Factor (

lb pollutant

ton aluminum) × Capacity (

ton aluminum

year ) ×

Conversion (

1 ton

2000 lb) ÷ number of emission units

Emission rates were then applied to each emission point at a facility (e.g., all potline stack release points 

at a particular facility were assigned the same emission rate). Table 6 details the aluminum and green 

anode production capacities used in the development of this data set. Tables 7 and 8 detail the final 

emission rates that were developed.

Table 6: Summary of Aluminum and Anode Production Capacities

Facility Identifier Facility Name Aluminum Production 

Capacity (tons/yr)

Anode Production 

Capacity (tons/yr)

SPPD_FAC_01 Alcoa - Massena West 143,300 81,681

SPPD_FAC_02 Alcoa - Warrick 295,900 168,663

SPPD_FAC_03 Alcoa - Wenatchee 202,800 115,596

SPPD_FAC_04 Alumax - Mt. Holly 246,900 140,733

SPPD_FAC_05 Noranda Aluminum 304,700 173,679

SPPD_FAC_06 Century Aluminum (RTA) -

Sebree 216,100 123,177

SPPD_FAC_07 Ormet Primary Aluminum 292,100 0

SPPD_FAC_08 Century Aluminum of KY 269,000 153,330

SPPD_FAC_09 Intalco Aluminum 306,400 174,648

SPPD_FAC_10 Alcoa - Massena East 91,867 0

SPPD_FAC_11 Century Aluminum of WV 187,400 106,818

SPPD_FAC_12 Alcoa - Rockdale 208,550 118,874

SPPD_FAC_13 Columbia Falls Aluminum 148,160 84,451

SPPD_FAC_14 Lake Charles Carbon 0 150,000

- Alcoa - Massena East - Corrected production capacity is 2/3 of original production capacity because this facility 

permanently shut down and dismantled one of its three potlines in September of 2013. The remaining two Soderberg 

potlines at this facility were permanently shut down in March of 2013. Alcoa (the owner of this facility) has not yet 

decided whether to shut down the entire facility or to install and operate prebake potlines.

- Columbia Falls Aluminum - Corrected production capacity is 4/5 of original production capacity based on available 

operational data from January of 2000 to the present. This facility has been idle sine 2009, and having inefficient 

Soderberg technology is not expected to reopen in its present configuration.

- For anode production, 0 anode production capacity at Ormet does not indicate 0 anode consumption in aluminum 

production but rather that the facility, prior to its shutdown in October of 2013, obtained its anodes from an offsite

vendor as opposed to producing anodes on site. Similarly, the Alcoa-Massena East facility, prior to shutting down its 

potlines in March of 2014, obtained its anode material from an offsite vendor.

- The Ormet Primary Aluminum facility has been idle since October of 2013 and currently is in bankruptcy proceedings.

The Alcoa-Rockdale and Century Aluminum of West Virginia facilities are presently idle but are expected to resume 

operations once market conditions improve.

Commented [PD2]: I believe the modeling file for the 

supplemental proposal reflects 3/5 of original capacity, doesn’t it? If 

so, we need to change this table (and footnote).
7

Table 7: Potline Stack HAP Actual Metal Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda Century(RTA) - Sebree Ormet Century of KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls Lake Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

3 Release Points 5 Release Points 4 Release Points 4 Release Points 4 Release Points 6 Release Points 6 Release Points 2 Release Points 18 Release 

Points 2 Release Points 1 Release Point 45 Release Points

10 Release 

Points 0 Release Points

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 0 ton Al

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

7440360 Antimony 1.17E-03 1.44E-03 1.07E-03 1.07E-03 1.86E-03 2.90E-04 2.65E-03 3.89E-03 2.85E-04 1.11E-03 4.57E-03 1.13E-04 1.52E-04 N/A

7440382 Arsenic 5.04E-04 6.25E-04 4.25E-03 9.31E-04 8.04E-04 5.98E-04 8.37E-03 1.31E-02 0.00E+00 6.87E-03 3.22E-02 7.97E-04 2.21E-03 N/A

7440417 Beryllium 1.03E-03 1.28E-03 2.26E-05 1.60E-05 1.65E-03 1.85E-05 1.04E-04 1.91E-02 5.74E-06 2.78E-04 4.06E-03 1.00E-04 1.35E-04 N/A

7440439 Cadmium 4.35E-04 5.39E-04 1.12E-04 1.64E-03 6.93E-04 2.78E-05 0.00E+00 4.29E-03 5.38E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A

16065831 Chromium (III) 6.46E-03 8.01E-03 7.04E-03 2.13E-03 1.03E-02 1.98E-03 4.30E-03 2.73E-02 8.26E-04 1.87E-02 2.54E-02 6.27E-04 8.44E-04 N/A

18540299 Chromium (VI) 8.30E-04 1.03E-03 9.04E-04 4.79E-04 1.32E-03 2.54E-04 5.52E-04 3.51E-03 1.06E-04 8.52E-04 3.26E-03 8.06E-05 1.08E-04 N/A

7440484 Cobalt 7.11E-04 8.81E-04 1.28E-04 5.03E-04 1.13E-03 3.49E-05 1.48E-03 4.19E-03 2.20E-04 8.29E-04 2.79E-03 6.90E-05 9.29E-05 N/A

7439921 Lead 1.49E-02 1.85E-02 3.08E-03 5.74E-03 2.38E-02 1.37E-04 4.69E-02 6.47E-02 7.11E-03 7.66E-03 5.85E-02 1.45E-03 1.95E-03 N/A

7439965 Manganese 2.10E-02 2.60E-02 5.43E-03 2.55E-03 3.35E-02 8.55E-04 9.65E-02 3.59E-02 5.73E-03 1.47E-02 8.24E-02 2.04E-03 2.74E-03 N/A

7440020 Nickel 6.88E-03 8.52E-03 1.66E-02 3.43E-03 1.10E-02 1.77E-03 1.84E-02 1.32E-01 1.71E-02 3.64E-02 7.07E-02 1.75E-03 1.17E-02 N/A

253 Selenium & Compounds 3.04E-03 3.76E-03 2.25E-03 1.90E-03 4.85E-03 2.85E-04 1.19E-02 3.18E-03 5.71E-04 2.78E-03 1.19E-02 2.95E-04 3.97E-04 N/A

7439976 Mercury 1.71E-04 2.11E-04 1.59E-04 4.15E-04 2.72E-04 2.43E-05 2.12E-05 1.53E-03 1.66E-05 7.57E-05 6.69E-04 1.65E-05 2.23E-05 N/A

- N/A - no applicable emission unit at facility. - Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (equal to estimated actual emissions) are provided above, actual and acute emissions were modeled as zero.

Table 8: Potline Roof Vent HAP Actual Metal Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda Century (RTA)- Sebree Ormet Century of KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

11 Release 

Points 10 Release Points 8 Release Points

4 Release 

Points

3 Release 

Points 6 Release Points 24 Release Points 8 Release Points

6 Release 

Points

4 Release 

Points

1 Release 

Point

10 Release 

Points

10 Release 

Points 0 Release Points

143,300 ton 

Al 295,900 ton Al 202,800 ton Al

246,900 ton 

Al

304,700 ton 

Al 216,100 ton Al 292,100 ton Al 269,000 ton Al

306,400 ton 

Al 91,867 ton Al 187,400 ton Al

208,550 ton 

Al

148,160 ton 

Al 0 ton Al

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

7440360 Antimony 1.28E-02 3.65E-02 2.03E-03 2.38E-02 1.00E-01 6.97E-03 7.14E-02 1.81E-03 1.04E-02 2.63E-03 1.85E-01 2.06E-02 6.15E-03 N/A

7440382 Arsenic 2.89E-02 6.56E-02 8.16E-02 1.76E-01 2.25E-01 2.11E-02 2.75E-02 3.75E-03 0.00E+00 8.32E-02 4.24E-01 4.72E-02 5.36E-02 N/A

7440417 Beryllium 7.20E-04 2.05E-03 1.93E-04 2.15E-04 5.62E-03 5.49E-03 4.63E-04 5.14E-03 2.06E-04 6.58E-04 1.04E-02 1.15E-03 3.45E-04 N/A

7440439 Cadmium 1.11E-03 2.53E-03 1.21E-03 7.74E-03 8.68E-03 2.99E-03 0.00E+00 1.58E-03 5.61E-02 2.38E-03 0.00E+00 0.00E+00 1.53E-03 N/A

16065831 Chromium (III) 1.89E-02 5.35E-02 2.67E-03 3.41E-02 1.47E-01 1.88E-02 1.02E-02 3.66E-02 3.63E-02 1.51E-01 2.71E-01 3.02E-02 9.03E-03 N/A

18540299 Chromium (VI) 1.18E-03 3.35E-03 1.67E-04 3.90E-03 9.21E-03 1.18E-03 6.39E-04 2.29E-03 2.28E-03 2.34E-03 1.70E-02 1.89E-03 5.65E-04 N/A

7440484 Cobalt 4.26E-03 1.21E-02 6.06E-04 3.39E-03 3.32E-02 7.04E-04 1.83E-02 8.81E-03 1.18E-03 9.32E-03 6.13E-02 6.83E-03 2.04E-03 N/A

7439921 Lead 4.03E-02 1.15E-01 1.23E-02 2.28E-02 3.15E-01 6.32E-03 2.15E-01 2.54E-02 2.26E-02 4.18E-02 5.80E-01 6.46E-02 1.93E-02 N/A

7439965 Manganese 2.54E-02 7.21E-02 6.46E-03 4.37E-02 1.98E-01 6.84E-03 1.13E-02 1.26E-01 2.24E-01 7.86E-02 3.66E-01 4.07E-02 1.22E-02 N/A

7440020 Nickel 5.18E-02 1.18E-01 6.26E-02 2.72E-01 4.04E-01 1.82E-01 7.22E-02 3.96E-01 6.86E-02 5.55E-01 1.11E+00 1.24E-01 3.57E-01 N/A

253 Selenium & Compounds 1.06E-02 3.02E-02 2.11E-03 3.15E-03 8.28E-02 2.99E-03 5.79E-02 1.38E-03 2.08E-02 6.58E-03 1.53E-01 1.70E-02 5.09E-03 N/A

7439976 Mercury 2.10E-04 5.97E-04 1.21E-04 1.42E-03 1.64E-03 2.36E-04 5.08E-06 1.48E-03 1.38E-03 1.62E-04 3.03E-03 3.37E-04 1.01E-04 N/A

- N/A - no applicable emission unit at facility. - Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (equal to estimated actual emissions) are provided above, actual and acute emissions were modeled as zero.
8

b. Anode Bake Furnace and Paste Production Plant

Emissions factors in units of pounds per ton green anode (lb/ton anode) for speciated HAP metals were 

developed using available performance test data. Tables 9 and 10 detail the facilities for which 

performance test data were available and summarize the emission factors developed. Anode bake 

furnace and paste production plant test data were available for 3 facilities. Emission factors for the 

remaining facilities that are equipped with anode bake furnaces and that are currently performing the onsite production of anodes in paste production plants were developed as the average of the 3 test results 

for each pollutant.

Chromium (VI) was determined at 1 facility. The average mass fraction of chromium (VI) (i.e., mass 

chromium (VI) per mass total chromium) for the anode bake furnace and the paste production plant at 

this facility was determined as follows:

Bake Furnace Plant chromium (VI) mass fraction =

1.25 × 10−05

1.98 × 10−05 = 0.631

Paste Plant chromium (VI) mass fraction =

6.38 × 10−07

2.12 × 10−06 = 0.301

The respective chromium (VI) mass fraction was applied to the total chromium values for the remaining 

facilities to determine chromium (VI) emission factors in lb/ton green anode. Chromium (III) for all 

facilities was determined as the difference between total chromium and chromium (VI).

Emission rates in units of tons pollutant per year (ton/yr) on an individual emission release point basis 

were developed by multiplying the emission factor (lb/ton anode) of a pollutant by the associated 

facility’s anode production capacity and then dividing by the number of emission release points at the 

facility, as shown:

Emission rate per point (

ton pollutant

year ) = Factor (

lb pollutant

ton anode ) × Capacity (

ton anode

year ) ×

Conversion (

1 ton

2000 lb) ÷ number of emission points

Emission rates were then applied to each emission point at a facility (e.g., all anode bake furnace stack

release points at a particular facility have the same emission rate). Tables 11 and 12 detail the final 

emission rates that were developed.
9

Table 9: Anode Bake Furnace HAP Metal Emission Factors

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA) -

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

(lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode)

7440360 Antimony 2.98E-06 2.98E-06 4.74E-06 1.56E-06 2.98E-06 2.64E-06 N/A 2.98E-06 2.98E-06 N/A 2.98E-06 2.98E-06 N/A 2.98E-06

7440382 Arsenic 5.27E-06 5.27E-06 9.49E-06 2.67E-06 5.27E-06 3.64E-06 N/A 5.27E-06 5.27E-06 N/A 5.27E-06 5.27E-06 N/A 5.27E-06

7440417 Beryllium 8.71E-08 8.71E-08 9.54E-08 3.48E-08 8.71E-08 1.31E-07 N/A 8.71E-08 8.71E-08 N/A 8.71E-08 8.71E-08 N/A 8.71E-08

7440439 Cadmium 3.03E-06 3.03E-06 4.74E-07 7.54E-06 3.03E-06 1.07E-06 N/A 3.03E-06 3.03E-06 N/A 3.03E-06 3.03E-06 N/A 3.03E-06

Total Chrome 1.94E-05 1.94E-05 2.84E-05 1.98E-05 1.94E-05 1.00E-05 N/A 1.94E-05 1.94E-05 N/A 1.94E-05 1.94E-05 N/A 1.94E-05

16065831 Chromium III 7.17E-06 7.17E-06 1.05E-05 7.30E-06 7.17E-06 3.69E-06 N/A 7.17E-06 7.17E-06 N/A 7.17E-06 7.17E-06 N/A 7.17E-06

18540299 Chromium (VI) 1.22E-05 1.22E-05 1.79E-05 1.25E-05 1.22E-05 6.31E-06 N/A 1.22E-05 1.22E-05 N/A 1.22E-05 1.22E-05 N/A 1.22E-05

7440484 Cobalt 2.74E-06 2.74E-06 5.73E-06 2.03E-06 2.74E-06 4.76E-07 N/A 2.74E-06 2.74E-06 N/A 2.74E-06 2.74E-06 N/A 2.74E-06

7439921 Lead 9.25E-06 9.25E-06 4.74E-06 1.68E-05 9.25E-06 6.19E-06 N/A 9.25E-06 9.25E-06 N/A 9.25E-06 9.25E-06 N/A 9.25E-06

7439965 Manganese 3.43E-05 3.43E-05 2.19E-05 7.45E-05 3.43E-05 6.48E-06 N/A 3.43E-05 3.43E-05 N/A 3.43E-05 3.43E-05 N/A 3.43E-05

7440020 Nickel 1.92E-05 1.92E-05 3.52E-05 1.86E-05 1.92E-05 3.65E-06 N/A 1.92E-05 1.92E-05 N/A 1.92E-05 1.92E-05 N/A 1.92E-05

253 Selenium & Compounds 3.01E-05 3.01E-05 9.49E-06 7.67E-05 3.01E-05 4.22E-06 N/A 3.01E-05 3.01E-05 N/A 3.01E-05 3.01E-05 N/A 3.01E-05

7439976 Mercury 1.48E-05 1.48E-05 3.39E-05 1.05E-05 1.48E-05 1.29E-07 N/A 1.48E-05 1.48E-05 N/A 1.48E-05 1.48E-05 N/A 1.48E-05

- Blue highlighted values are original information request test results, all other values derived based on average of test results. N/A - no applicable emission unit at facility.

- Chromium (VI) mass fraction = 0.631.

Table 10: Paste Plant HAP Metal Emission Factors

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA) -

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

(lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode) (lb/ton anode)

7440360 Antimony 1.00E-06 1.00E-06 6.44E-07 2.50E-07 1.00E-06 2.12E-06 N/A 1.00E-06 1.00E-06 N/A 1.00E-06 1.00E-06 1.00E-06 1.00E-06

7440382 Arsenic 1.85E-06 1.85E-06 1.42E-06 1.89E-07 1.85E-06 3.93E-06 N/A 1.85E-06 1.85E-06 N/A 1.85E-06 1.85E-06 1.85E-06 1.85E-06

7440417 Beryllium 2.54E-08 2.54E-08 1.44E-08 3.61E-09 2.54E-08 5.83E-08 N/A 2.54E-08 2.54E-08 N/A 2.54E-08 2.54E-08 2.54E-08 2.54E-08

7440439 Cadmium 5.16E-07 5.16E-07 7.13E-08 1.41E-06 5.16E-07 6.13E-08 N/A 5.16E-07 5.16E-07 N/A 5.16E-07 5.16E-07 5.16E-07 5.16E-07

Total Chrome 7.90E-06 7.90E-06 3.48E-06 2.12E-06 7.90E-06 1.81E-05 N/A 7.90E-06 7.90E-06 N/A 7.90E-06 7.90E-06 7.90E-06 7.90E-06

16065831 Chromium III 5.52E-06 5.52E-06 2.43E-06 1.48E-06 5.52E-06 1.27E-05 N/A 5.52E-06 5.52E-06 N/A 5.52E-06 5.52E-06 5.52E-06 5.52E-06

18540299 Chromium (VI) 2.38E-06 2.38E-06 1.05E-06 6.38E-07 2.38E-06 5.45E-06 N/A 2.38E-06 2.38E-06 N/A 2.38E-06 2.38E-06 2.38E-06 2.38E-06

7440484 Cobalt 2.57E-07 2.57E-07 5.67E-08 3.67E-07 2.57E-07 3.48E-07 N/A 2.57E-07 2.57E-07 N/A 2.57E-07 2.57E-07 2.57E-07 2.57E-07

7439921 Lead 1.85E-06 1.85E-06 3.36E-06 1.29E-06 1.85E-06 9.10E-07 N/A 1.85E-06 1.85E-06 N/A 1.85E-06 1.85E-06 1.85E-06 1.85E-06

7439965 Manganese 1.21E-05 1.21E-05 3.06E-06 2.75E-06 1.21E-05 3.04E-05 N/A 1.21E-05 1.21E-05 N/A 1.21E-05 1.21E-05 1.21E-05 1.21E-05

7440020 Nickel 3.91E-06 3.91E-06 4.38E-06 3.45E-06 3.91E-06 3.89E-06 N/A 3.91E-06 3.91E-06 N/A 3.91E-06 3.91E-06 3.91E-06 3.91E-06

253 Selenium & Compounds 1.23E-06 1.23E-06 1.42E-06 1.14E-07 1.23E-06 2.14E-06 N/A 1.23E-06 1.23E-06 N/A 1.23E-06 1.23E-06 1.23E-06 1.23E-06

7439976 Mercury 1.05E-07 1.05E-07 8.68E-08 1.21E-07 1.05E-07 1.07E-07 N/A 1.05E-07 1.05E-07 N/A 1.05E-07 1.05E-07 1.05E-07 1.05E-07

- Blue highlighted values are original information request test results, all other values derived based on average of test results. N/A - no applicable emission unit at facility.

- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (equal to estimated actual emissions) are provided above, actual and acute emissions were modeled as zero.

- Chromium (VI) mass fraction = 0.301.
10

Table 11: Anode Bake Furnace HAP Metal Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA) -

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

1 Release Point 1 Release Point 1 Release Point 1 Release Point 3 Release Points 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 2 Release Point

81,681 ton anode 168,663 ton anode 115,596 ton anode 140,733 ton anode 173,679 ton anode 123,177 ton anode 0 ton anode 153,330 ton anode 174,648 ton anode 0 ton anode 106,818 ton anode 118,874 ton anode 0 ton anode 150,000 ton anode

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

7440360 Antimony 1.22E-04 2.51E-04 2.74E-04 1.10E-04 8.63E-05 1.63E-04 N/A 2.29E-04 2.60E-04 N/A 1.59E-04 1.77E-04 N/A 1.12E-04

7440382 Arsenic 2.15E-04 4.44E-04 5.49E-04 1.88E-04 1.52E-04 2.24E-04 N/A 4.04E-04 4.60E-04 N/A 2.81E-04 3.13E-04 N/A 1.98E-04

7440417 Beryllium 3.56E-06 7.34E-06 5.51E-06 2.45E-06 2.52E-06 8.07E-06 N/A 6.67E-06 7.60E-06 N/A 4.65E-06 5.17E-06 N/A 3.26E-06

7440439 Cadmium 1.24E-04 2.55E-04 2.74E-05 5.31E-04 8.77E-05 6.59E-05 N/A 2.32E-04 2.65E-04 N/A 1.62E-04 1.80E-04 N/A 1.14E-04

16065831 Chromium III 2.93E-04 6.04E-04 6.07E-04 5.13E-04 2.07E-04 2.28E-04 N/A 5.49E-04 6.26E-04 N/A 3.83E-04 4.26E-04 N/A 2.69E-04

18540299 Chromium (VI) 4.99E-04 1.03E-03 1.04E-03 8.76E-04 3.54E-04 3.88E-04 N/A 9.38E-04 1.07E-03 N/A 6.53E-04 7.27E-04 N/A 4.59E-04

7440484 Cobalt 1.12E-04 2.31E-04 3.31E-04 1.43E-04 7.95E-05 2.93E-05 N/A 2.10E-04 2.40E-04 N/A 1.47E-04 1.63E-04 N/A 1.03E-04

7439921 Lead 3.78E-04 7.80E-04 2.74E-04 1.18E-03 2.68E-04 3.81E-04 N/A 7.09E-04 8.08E-04 N/A 4.94E-04 5.50E-04 N/A 3.47E-04

7439965 Manganese 1.40E-03 2.89E-03 1.27E-03 5.25E-03 9.93E-04 3.99E-04 N/A 2.63E-03 3.00E-03 N/A 1.83E-03 2.04E-03 N/A 1.29E-03

7440020 Nickel 7.83E-04 1.62E-03 2.04E-03 1.31E-03 5.55E-04 2.25E-04 N/A 1.47E-03 1.67E-03 N/A 1.02E-03 1.14E-03 N/A 7.19E-04

253 Selenium & Compounds 1.23E-03 2.54E-03 5.49E-04 5.39E-03 8.72E-04 2.60E-04 N/A 2.31E-03 2.63E-03 N/A 1.61E-03 1.79E-03 N/A 1.13E-03

7439976 Mercury 6.06E-04 1.25E-03 1.96E-03 7.38E-04 4.30E-04 7.96E-06 N/A 1.14E-03 1.30E-03 N/A 7.93E-04 8.82E-04 N/A 5.57E-04

- N/A - no applicable emission unit at facility.

Table 12: Paste Plant HAP Metal Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda

Century 

(RTA) -

Sebree

Ormet Century of 

KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

1 Release 

Point

1 Release 

Point

1 Release 

Point

1 Release 

Point

1 Release 

Point 1 Release Point 0 Release Points

1 Release 

Point

1 Release 

Point

0 Release 

Points

1 Release 

Point

1 Release 

Point

1 Release 

Point

1 Release 

Point

81,681 ton anode 168,663 ton anode 115,596 ton anode 140,733 ton anode 173,679 ton anode 123,177 ton anode 0 ton anode 153,330 ton anode 174,648 ton 

anode 0 ton anode 106,818 ton anode 118,874 ton anode 84,451 ton anode 150,000 ton anode

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

7440360 Antimony 4.10E-05 8.47E-05 3.72E-05 1.76E-05 8.72E-05 1.31E-04 N/A 7.70E-05 8.77E-05 N/A 5.37E-05 5.97E-05 1.79E-05 7.53E-05

7440382 Arsenic 7.55E-05 1.56E-04 8.23E-05 1.33E-05 1.60E-04 2.42E-04 N/A 1.42E-04 1.61E-04 N/A 9.87E-05 1.10E-04 3.29E-05 1.39E-04

7440417 Beryllium 1.04E-06 2.14E-06 8.29E-07 2.54E-07 2.21E-06 3.59E-06 N/A 1.95E-06 2.22E-06 N/A 1.36E-06 1.51E-06 4.52E-07 1.91E-06

7440439 Cadmium 2.11E-05 4.35E-05 4.12E-06 9.95E-05 4.48E-05 3.78E-06 N/A 3.95E-05 4.50E-05 N/A 2.75E-05 3.07E-05 9.17E-06 3.87E-05

16065831 Chromium III 2.25E-04 4.66E-04 1.40E-04 1.04E-04 4.79E-04 7.79E-04 N/A 4.23E-04 4.82E-04 N/A 2.95E-04 3.28E-04 9.81E-05 4.14E-04

18540299 Chromium (VI) 9.71E-05 2.01E-04 6.05E-05 4.49E-05 2.07E-04 3.36E-04 N/A 1.82E-04 2.08E-04 N/A 1.27E-04 1.41E-04 4.23E-05 1.78E-04

7440484 Cobalt 1.05E-05 2.17E-05 3.28E-06 2.58E-05 2.23E-05 2.14E-05 N/A 1.97E-05 2.25E-05 N/A 1.37E-05 1.53E-05 4.58E-06 1.93E-05

7439921 Lead 7.57E-05 1.56E-04 1.94E-04 9.08E-05 1.61E-04 5.60E-05 N/A 1.42E-04 1.62E-04 N/A 9.90E-05 1.10E-04 3.30E-05 1.39E-04

7439965 Manganese 4.93E-04 1.02E-03 1.77E-04 1.94E-04 1.05E-03 1.87E-03 N/A 9.25E-04 1.05E-03 N/A 6.45E-04 7.17E-04 2.15E-04 9.05E-04

7440020 Nickel 1.60E-04 3.29E-04 2.53E-04 2.43E-04 3.39E-04 2.40E-04 N/A 2.99E-04 3.41E-04 N/A 2.09E-04 2.32E-04 6.94E-05 2.93E-04

253 Selenium & Compounds 5.01E-05 1.03E-04 8.23E-05 8.01E-06 1.06E-04 1.32E-04 N/A 9.40E-05 1.07E-04 N/A 6.55E-05 7.29E-05 2.18E-05 9.20E-05

7439976 Mercury 4.28E-06 8.84E-06 5.02E-06 8.50E-06 9.10E-06 6.58E-06 N/A 8.04E-06 9.15E-06 N/A 5.60E-06 6.23E-06 1.86E-06 7.86E-06

- N/A - no applicable emission unit at facility. - Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (equal to estimated actual emissions) are provided above, actual and acute emissions were modeled as zero.
11

2. Polychlorinated Biphenyls, Polycyclic Aromatic Hydrocarbons, and Dioxins/Furans.

a. Potline Stack, Potline Roof Vent, Anode Bake Furnace, and Anode Paste Plant

Emission factors in units of pounds per ton aluminum produced (lb/ton Al) and pounds per ton of green 

anode (lb/ton anode) for speciated PCB, PAH, and D/F were developed using available performance test 

data. Table 13 details the facilities for which performance test data were available and summarizes the 

emission factors developed for this effort. Potroom stack and roof vent test data were available for 2 

facilities (Noranda and Massena East).

Noranda utilizes prebake type reduction cells. Test results from Noranda potrooms were applied to all 

other facilities that utilize prebake type reduction cells. Two test results were available for potline stacks 

and two test results were available for potline roof vents. The average of these two respective test sets 

was utilized as the emission factor.

Massena East utilizes Soderberg type reduction cells. Test results from Massena East potrooms were 

applied to the other Soderberg facility (i.e., Columbia Falls). Two test results were available for potline 

stacks and two test results were available for potline roof vents. The average of these two respective test 

sets was utilized as the emission factor.

Test results for anode bake furnaces and paste plants were only available from 1 facility (Noranda). Test 

results from the Noranda bake furnace and paste plant were applied to all other facilities, as applicable.

Emission rates in units of tons pollutant per year (ton/yr) on an individual emission release point basis 

were developed by multiplying the emission factor (lb/ton anode or lb/ton Al, as applicable) of a 

pollutant by the associated facility’s aluminum or anode production capacity, as applicable, and then 

dividing by the number of emission points at the facility, as shown:

Emission rate per point (

ton pollutant

year ) = Factor (

lb pollutant

ton capacity) × Capacity (

ton capacity

year ) ×

Conversion (

1 ton

2000 lb) ÷ number of emission points

Emission rates are then applied to each emission point at a facility. Tables 14 thru 17 detail the final 

emissions rates that were developed.
12

Table 13: Summary Organic Emission Factors

CAS Pollutant Noranda Test Data

(SPPD_FAC_05)

Massena East Test Data

(SPPD_FAC_10)

Potline Stack Test Results Potline Roof Vent Test Results Anode Bake 

Furnace Anode Paste Plant Potline Stack Test Results

Potline Roof Vent 

Potroom 2 duct 161 Duct Average Roof #2 Roof #3 Average Test Results

(lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton anode) (lb/ton anode) (lb/ton Al) (lb/ton Al)

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) 1.47E-10 1.87E-10 1.67E-10 4.88E-09 2.80E-09 3.84E-09 6.22E-11 4.01E-11 1.76E-09 1.66E-08

32598133 3,3',4,4'-TCB (PCB-77) 9.25E-10 4.25E-10 6.75E-10 3.08E-08 1.13E-08 2.10E-08 1.52E-10 4.15E-11 1.51E-08 1.74E-07

65510443 2',3,4,4',5-PeCB (PCB-123) 1.52E-10 1.35E-10 1.44E-10 6.10E-09 6.26E-09 6.18E-09 3.73E-11 2.13E-11 1.37E-09 1.66E-08

31508006 2,3',4,4',5-PeCB (PCB-118) 1.37E-08 2.88E-09 8.31E-09 5.04E-07 3.58E-08 2.70E-07 9.56E-10 2.71E-11 5.68E-08 7.37E-07

74472370 2,3,4,4',5-PeCB (PCB-114) 6.41E-10 1.38E-10 3.89E-10 1.61E-08 3.17E-09 9.65E-09 3.58E-11 2.01E-11 1.76E-09 2.21E-08

32598144 2,3,3',4,4'-PeCB (PCB-105) 4.72E-09 1.23E-09 2.98E-09 1.48E-07 6.63E-09 7.72E-08 4.06E-10 2.05E-11 2.22E-08 2.94E-07

57465288 3,3',4,4',5-PeCB (PCB-126) 1.54E-10 1.45E-10 1.50E-10 5.72E-09 3.28E-09 4.50E-09 3.64E-11 1.93E-11 1.40E-09 2.19E-08

52663726 2,3',4,4',5,5'-HxCB (PCB-167) 8.55E-10 1.68E-10 5.12E-10 1.79E-08 2.04E-09 9.99E-09 4.47E-11 1.18E-11 1.48E-09 1.35E-08

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) 1.24E-09 2.06E-10 7.25E-10 5.11E-08 2.48E-09 2.68E-08 4.66E-11 1.48E-11 3.95E-09 3.87E-08

32774166 3,3',4,4',5,5'-HxCB (PCB-169) 9.77E-11 1.65E-10 1.31E-10 2.42E-09 1.85E-09 2.14E-09 4.05E-11 1.38E-11 2.09E-10 3.47E-09

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) 2.12E-10 1.59E-10 1.85E-10 7.43E-09 2.25E-09 4.84E-09 3.37E-11 1.12E-11 2.45E-10 3.29E-09

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene 8.07E-05 2.57E-04 1.69E-04 2.62E-03 1.35E-03 1.98E-03 5.18E-03 1.62E-04 3.48E-02 1.96E-02

91576 2-Methylnaphthalene 1.35E-06 2.52E-06 1.93E-06 2.35E-04 1.40E-04 1.88E-04 7.46E-04 6.42E-05 1.45E-02 1.34E-02

83329 Acenaphthene 1.16E-06 4.04E-06 2.60E-06 1.84E-04 2.23E-04 2.04E-04 3.29E-05 2.43E-03 3.25E-02 2.82E-02

208968 Acenaphthylene 2.17E-07 7.01E-07 4.59E-07 6.71E-06 7.27E-06 6.99E-06 2.32E-04 4.15E-06 6.20E-03 2.25E-03

86737 Fluorene 3.97E-06 2.99E-06 3.48E-06 1.26E-04 5.26E-05 8.92E-05 1.12E-04 3.11E-04 6.56E-03 5.19E-03

85018 Phenanthrene 5.06E-06 1.52E-05 1.01E-05 1.84E-04 2.22E-04 2.03E-04 3.28E-03 9.27E-04 1.50E-02 4.00E-02

120127 Anthracene 5.21E-07 2.43E-06 1.48E-06 1.41E-05 2.85E-05 2.13E-05 2.81E-05 7.13E-05 5.31E-04 4.48E-03

206440 Fluoranthene 2.79E-06 3.07E-06 2.93E-06 1.70E-04 2.14E-04 1.92E-04 4.67E-03 6.53E-05 7.20E-03 5.82E-02

129000 Pyrene 1.66E-06 1.48E-06 1.57E-06 3.44E-05 7.59E-05 5.52E-05 3.97E-06 3.49E-05 1.98E-03 1.39E-02

56553 Benz[a]Anthracene 4.35E-07 2.36E-07 3.36E-07 1.20E-05 3.54E-06 7.77E-06 2.98E-06 4.01E-07 9.14E-05 7.14E-03

218019 Chrysene 7.06E-07 4.75E-07 5.90E-07 7.46E-05 1.33E-05 4.40E-05 3.83E-04 6.98E-09 5.79E-04 2.11E-02

205992 Benzo[b]Fluoranthene 8.26E-07 4.37E-07 6.31E-07 6.01E-05 8.53E-06 3.43E-05 2.94E-04 1.70E-07 4.31E-04 2.59E-02

207089 Benzo[k]Fluoranthene 3.04E-07 2.21E-07 2.63E-07 1.21E-05 3.17E-06 7.65E-06 1.04E-05 5.25E-08 2.09E-04 9.88E-03

192972 Benzo[e]Pyrene 6.90E-07 4.15E-07 5.53E-07 2.32E-05 4.50E-06 1.39E-05 1.54E-05 8.34E-08 2.64E-04 1.40E-02

50328 Benzo[a]Pyrene 3.69E-07 1.45E-07 2.57E-07 2.48E-06 2.11E-06 2.30E-06 7.13E-07 5.31E-08 6.81E-05 3.58E-03

198550 Perylene 1.59E-07 1.27E-07 1.43E-07 2.07E-06 1.35E-06 1.71E-06 2.28E-07 1.05E-08 2.01E-05 8.46E-04

193395 Indeno[1,2,3-c,d]Pyrene 3.25E-07 2.98E-07 3.11E-07 6.94E-06 3.40E-06 5.17E-06 3.18E-06 1.55E-08 9.15E-05 4.38E-03

53703 Dibenzo[a,h]Anthracene 1.69E-07 3.18E-07 2.44E-07 5.52E-06 3.48E-06 4.50E-06 2.33E-06 6.98E-09 2.42E-05 1.33E-03

191242 Benzo[g,h,i,]Perylene 5.00E-07 2.99E-07 3.99E-07 9.11E-06 5.21E-06 7.16E-06 1.18E-06 1.49E-08 1.41E-04 5.39E-03

Dioxins and Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin 1.96E-11 5.44E-11 3.70E-11 7.33E-10 6.73E-10 7.03E-10 2.04E-11 5.06E-13 9.79E-11 1.08E-09

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin 2.14E-11 5.52E-11 3.83E-11 5.35E-10 6.60E-10 5.98E-10 1.56E-11 4.80E-13 1.07E-10 2.05E-09

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin 1.93E-12 5.36E-12 3.64E-12 6.67E-11 5.20E-11 5.94E-11 7.65E-13 3.28E-14 1.18E-10 1.62E-09

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin 2.44E-12 3.80E-12 3.12E-12 1.64E-10 7.32E-11 1.19E-10 6.43E-13 5.12E-14 1.22E-10 1.60E-09

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin 2.08E-12 9.66E-12 5.87E-12 1.44E-10 8.33E-11 1.14E-10 8.54E-13 3.46E-14 1.60E-10 1.98E-09

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin 1.43E-12 1.13E-12 1.28E-12 6.19E-11 4.95E-11 5.57E-11 7.62E-13 6.92E-15 3.20E-10 8.59E-09

51207319 2,3,7,8-Tetrachlorodibenzofuran 1.48E-11 1.52E-11 1.50E-11 2.23E-10 1.14E-10 1.68E-10 3.36E-12 3.00E-14 7.87E-10 1.48E-08

57117416 1,2,3,7,8-Pentachlorodibenzofuran 1.82E-12 3.57E-12 2.70E-12 8.50E-11 4.68E-11 6.59E-11 3.99E-13 1.91E-14 3.42E-10 8.70E-09

57117314 2,3,4,7,8-Pentachlorodibenzofuran 1.07E-11 1.16E-11 1.12E-11 2.50E-10 1.96E-10 2.23E-10 3.03E-12 6.74E-14 1.46E-09 1.75E-08

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran 1.86E-12 6.85E-12 4.36E-12 7.86E-11 6.78E-11 7.32E-11 8.06E-13 3.18E-14 5.24E-10 1.14E-08

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran 2.41E-12 3.57E-12 2.99E-12 1.11E-10 7.57E-11 9.32E-11 8.10E-13 3.61E-14 2.65E-10 9.68E-09

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran 1.56E-12 5.47E-12 3.52E-12 8.09E-11 1.18E-10 9.96E-11 1.04E-12 3.09E-14 9.31E-11 5.95E-10

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran 3.01E-12 4.68E-12 3.85E-12 9.65E-11 1.14E-10 1.05E-10 2.59E-12 4.79E-14 1.78E-10 8.67E-09

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran 3.25E-13 1.44E-12 8.80E-13 2.85E-11 3.98E-11 3.42E-11 3.57E-13 2.81E-15 9.04E-10 4.27E-08

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran 2.14E-13 5.66E-13 3.90E-13 2.07E-11 9.68E-12 1.52E-11 1.23E-13 3.75E-15 1.07E-10 6.62E-09
13

Table 14: Potline Stack Organic Emission Rates (per release point)

CAS Pollutant Massena 

West

Warrick Wenatchee Alumax Noranda Century -

Sebree

Ormet Century of 

KY

Intalco Massena 

East

Century of 

WV

Rockdale Columbia 

Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

3 Release Points 5 Release Points 4 Release Points 4 Release Points 4 Release Points 6 Release Points 6 Release Points 2 Release Points 18 Release Points 2 Release Points 1 Release Point 45 Release Points 10 Release Points 0 Release Points

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 0 ton Al

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) 3.99E-09 4.95E-09 4.24E-09 5.16E-09 6.37E-09 3.01E-09 4.07E-09 1.12E-08 1.42E-09 4.04E-08 1.57E-08 3.87E-10 1.04E-08 N/A

32598133 3,3',4,4'-TCB (PCB-77) 1.61E-08 2.00E-08 1.71E-08 2.08E-08 2.57E-08 1.22E-08 1.64E-08 4.54E-08 5.74E-09 3.47E-07 6.32E-08 1.56E-09 8.95E-08 N/A

65510443 2',3,4,4',5-PeCB (PCB-123) 3.43E-09 4.25E-09 3.64E-09 4.43E-09 5.47E-09 2.59E-09 3.50E-09 9.66E-09 1.22E-09 3.15E-08 1.35E-08 3.33E-10 8.13E-09 N/A

31508006 2,3',4,4',5-PeCB (PCB-118) 1.98E-07 2.46E-07 2.11E-07 2.56E-07 3.16E-07 1.50E-07 2.02E-07 5.59E-07 7.07E-08 1.30E-06 7.78E-07 1.92E-08 3.36E-07 N/A

74472370 2,3,4,4',5-PeCB (PCB-114) 9.30E-09 1.15E-08 9.87E-09 1.20E-08 1.48E-08 7.01E-09 9.48E-09 2.62E-08 3.31E-09 4.05E-08 3.65E-08 9.02E-10 1.04E-08 N/A

32598144 2,3,3',4,4'-PeCB (PCB-105) 7.11E-08 8.81E-08 7.55E-08 9.19E-08 1.13E-07 5.36E-08 7.25E-08 2.00E-07 2.53E-08 5.10E-07 2.79E-07 6.90E-09 8.13E-09 N/A

57465288 3,3',4,4',5-PeCB (PCB-126) 3.57E-09 4.43E-09 3.79E-09 4.62E-09 5.70E-09 2.69E-09 3.64E-09 1.01E-08 1.27E-09 3.22E-08 1.40E-08 3.47E-10 8.31E-09 N/A

52663726 2,3',4,4',5,5'-HxCB (PCB-167) 1.22E-08 1.51E-08 1.30E-08 1.58E-08 1.95E-08 9.21E-09 1.25E-08 3.44E-08 4.35E-09 3.40E-08 4.79E-08 1.19E-09 8.78E-09 N/A

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) 1.73E-08 2.14E-08 1.84E-08 2.24E-08 2.76E-08 1.31E-08 1.76E-08 4.87E-08 6.17E-09 9.07E-08 6.79E-08 1.68E-09 2.34E-08 N/A

32774166 3,3',4,4',5,5'-HxCB (PCB-169) 3.14E-09 3.89E-09 3.33E-09 4.05E-09 5.00E-09 2.37E-09 3.20E-09 8.83E-09 1.12E-09 4.79E-09 1.23E-08 3.04E-10 1.24E-09 N/A

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) 4.43E-09 5.49E-09 4.70E-09 5.72E-09 7.07E-09 3.34E-09 4.52E-09 1.25E-08 1.58E-09 5.63E-09 1.74E-08 4.30E-10 1.45E-09 N/A

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene 4.03E-03 4.99E-03 4.27E-03 5.20E-03 6.42E-03 3.04E-03 4.10E-03 1.13E-02 1.43E-03 7.98E-01 1.58E-02 3.91E-04 2.06E-01 N/A

91576 2-Methylnaphthalene 4.61E-05 5.72E-05 4.90E-05 5.96E-05 7.36E-05 3.48E-05 4.70E-05 1.30E-04 1.64E-05 3.33E-01 1.81E-04 4.48E-06 1.63E-01 N/A

83329 Acenaphthene 6.21E-05 7.69E-05 6.59E-05 8.02E-05 9.90E-05 4.68E-05 6.33E-05 1.75E-04 2.21E-05 7.46E-01 2.44E-04 6.02E-06 3.66E-01 N/A

208968 Acenaphthylene 1.10E-05 1.36E-05 1.16E-05 1.42E-05 1.75E-05 8.26E-06 1.12E-05 3.09E-05 3.91E-06 1.42E-01 4.30E-05 1.06E-06 6.98E-02 N/A

86737 Fluorene 8.31E-05 1.03E-04 8.82E-05 1.07E-04 1.33E-04 6.27E-05 8.47E-05 2.34E-04 2.96E-05 1.51E-01 3.26E-04 8.06E-06 7.39E-02 N/A

85018 Phenanthrene 2.42E-04 2.99E-04 2.56E-04 3.12E-04 3.85E-04 1.82E-04 2.46E-04 6.80E-04 8.61E-05 3.45E-01 9.48E-04 2.34E-05 1.69E-01 N/A

120127 Anthracene 3.53E-05 4.37E-05 3.75E-05 4.56E-05 5.63E-05 2.66E-05 3.60E-05 9.94E-05 1.26E-05 1.22E-02 1.38E-04 3.42E-06 5.97E-03 N/A

206440 Fluoranthene 6.99E-05 8.66E-05 7.42E-05 9.03E-05 1.11E-04 5.27E-05 7.12E-05 1.97E-04 2.49E-05 1.65E-01 2.74E-04 6.78E-06 8.10E-02 N/A

129000 Pyrene 3.75E-05 4.64E-05 3.98E-05 4.84E-05 5.97E-05 2.82E-05 3.82E-05 1.05E-04 1.33E-05 4.56E-02 1.47E-04 3.63E-06 2.23E-02 N/A

56553 Benz[a]Anthracene 8.02E-06 9.94E-06 8.52E-06 1.04E-05 1.28E-05 6.05E-06 8.18E-06 2.26E-05 2.86E-06 2.10E-03 3.15E-05 7.78E-07 1.03E-03 N/A

218019 Chrysene 1.41E-05 1.75E-05 1.50E-05 1.82E-05 2.25E-05 1.06E-05 1.44E-05 3.97E-05 5.02E-06 1.33E-02 5.53E-05 1.37E-06 6.51E-03 N/A

205992 Benzo[b]Fluoranthene 1.51E-05 1.87E-05 1.60E-05 1.95E-05 2.40E-05 1.14E-05 1.54E-05 4.25E-05 5.37E-06 9.90E-03 5.92E-05 1.46E-06 4.85E-03 N/A

207089 Benzo[k]Fluoranthene 6.27E-06 7.77E-06 6.66E-06 8.10E-06 1.00E-05 4.73E-06 6.39E-06 1.77E-05 2.23E-06 4.80E-03 2.46E-05 6.08E-07 2.35E-03 N/A

192972 Benzo[e]Pyrene 1.32E-05 1.64E-05 1.40E-05 1.71E-05 2.10E-05 9.95E-06 1.35E-05 3.72E-05 4.70E-06 6.05E-03 5.18E-05 1.28E-06 2.97E-03 N/A

50328 Benzo[a]Pyrene 6.14E-06 7.60E-06 6.51E-06 7.93E-06 9.79E-06 4.63E-06 6.25E-06 1.73E-05 2.19E-06 1.56E-03 2.41E-05 5.95E-07 7.67E-04 N/A

198550 Perylene 3.42E-06 4.24E-06 3.63E-06 4.42E-06 5.46E-06 2.58E-06 3.49E-06 9.63E-06 1.22E-06 4.62E-04 1.34E-05 3.32E-07 2.26E-04 N/A

193395 Indeno[1,2,3-c,d]Pyrene 7.44E-06 9.21E-06 7.89E-06 9.61E-06 1.19E-05 5.61E-06 7.58E-06 2.09E-05 2.65E-06 2.10E-03 2.92E-05 7.22E-07 1.03E-03 N/A

53703 Dibenzo[a,h]Anthracene 5.82E-06 7.22E-06 6.18E-06 7.53E-06 9.29E-06 4.39E-06 5.94E-06 1.64E-05 2.08E-06 5.55E-04 2.29E-05 5.65E-07 2.72E-04 N/A

191242 Benzo[g,h,i,]Perylene 9.54E-06 1.18E-05 1.01E-05 1.23E-05 1.52E-05 7.19E-06 9.72E-06 2.69E-05 3.40E-06 3.23E-03 3.74E-05 9.25E-07 1.58E-03 N/A

Dioxins and Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin 8.84E-10 1.09E-09 9.38E-10 1.14E-09 1.41E-09 6.66E-10 9.01E-10 2.49E-09 3.15E-10 2.25E-09 3.47E-09 8.57E-11 5.80E-10 N/A

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin 9.14E-10 1.13E-09 9.70E-10 1.18E-09 1.46E-09 6.89E-10 9.32E-10 2.57E-09 3.26E-10 2.45E-09 3.59E-09 8.87E-11 6.31E-10 N/A

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin 8.70E-11 1.08E-10 9.23E-11 1.12E-10 1.39E-10 6.56E-11 8.86E-11 2.45E-10 3.10E-11 2.70E-09 3.41E-10 8.44E-12 6.98E-10 N/A

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin 7.44E-11 9.22E-11 7.90E-11 9.62E-11 1.19E-10 5.61E-11 7.59E-11 2.10E-10 2.65E-11 2.80E-09 2.92E-10 7.22E-12 7.21E-10 N/A

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin 1.40E-10 1.74E-10 1.49E-10 1.81E-10 2.24E-10 1.06E-10 1.43E-10 3.95E-10 4.99E-11 3.67E-09 5.50E-10 1.36E-11 9.47E-10 N/A

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin 3.06E-11 3.80E-11 3.25E-11 3.96E-11 4.89E-11 2.31E-11 3.12E-11 8.63E-11 1.09E-11 7.35E-09 1.20E-10 2.97E-12 1.90E-09 N/A

51207319 2,3,7,8-Tetrachlorodibenzofuran 3.58E-10 4.44E-10 3.81E-10 4.63E-10 5.72E-10 2.70E-10 3.65E-10 1.01E-09 1.28E-10 1.81E-08 1.41E-09 3.48E-11 4.66E-09 N/A

57117416 1,2,3,7,8-Pentachlorodibenzofuran 6.44E-11 7.98E-11 6.84E-11 8.33E-11 1.03E-10 4.86E-11 6.57E-11 1.81E-10 2.30E-11 7.85E-09 2.53E-10 6.25E-12 2.03E-09 N/A

57117314 2,3,4,7,8-Pentachlorodibenzofuran 2.66E-10 3.30E-10 2.83E-10 3.44E-10 4.25E-10 2.01E-10 2.71E-10 7.50E-10 9.49E-11 3.34E-08 1.04E-09 2.58E-11 8.63E-09 N/A

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran 1.04E-10 1.29E-10 1.10E-10 1.34E-10 1.66E-10 7.85E-11 1.06E-10 2.93E-10 3.71E-11 1.20E-08 4.08E-10 1.01E-11 3.11E-09 N/A

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran 7.15E-11 8.86E-11 7.59E-11 9.24E-11 1.14E-10 5.39E-11 7.29E-11 2.01E-10 2.55E-11 6.08E-09 2.80E-10 6.94E-12 1.57E-09 N/A

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran 8.40E-11 1.04E-10 8.91E-11 1.09E-10 1.34E-10 6.33E-11 8.56E-11 2.36E-10 2.99E-11 2.14E-09 3.29E-10 8.15E-12 5.52E-10 N/A

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran 9.19E-11 1.14E-10 9.75E-11 1.19E-10 1.46E-10 6.93E-11 9.36E-11 2.59E-10 3.27E-11 4.09E-09 3.60E-10 8.91E-12 1.06E-09 N/A

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran 2.10E-11 2.60E-11 2.23E-11 2.72E-11 3.35E-11 1.59E-11 2.14E-11 5.92E-11 7.49E-12 2.08E-08 8.25E-11 2.04E-12 5.36E-09 N/A

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran 9.31E-12 1.15E-11 9.88E-12 1.20E-11 1.48E-11 7.02E-12 9.49E-12 2.62E-11 3.32E-12 2.47E-09 3.65E-11 9.03E-13 6.36E-10 N/A

- N/A - no applicable emission unit at facility.

- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (estimated to be equal to 1.9 times estimated actual emissions for polycyclic aromatic hydrocarbons and 1.0 times estimated actual emissions for other species) are provided above;

actual and acute emissions were modeled as zero.
14

Table 15: Potline Roof Vent Organic Emission Rates (per release point)

CAS Pollutant Massena 

West

Warrick Wenatchee Alumax Noranda Century -

Sebree

Ormet Century of 

KY

Intalco Massena 

East

Century of 

WV

Rockdale Columbia 

Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

11 Release Points 10 Release Points 8 Release Points 4 Release Points 3 Release Points 6 Release Points 24 Release Points 8 Release Points 6 Release Points 4 Release Points 1 Release Point 10 Release Points 10 Release Points 0 Release Points

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 0 ton Al

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) 2.50E-08 7.10E-08 4.87E-08 1.19E-07 1.95E-07 6.92E-08 2.34E-08 6.46E-08 9.80E-08 1.91E-07 3.60E-07 4.00E-08 9.86E-08 N/A

32598133 3,3',4,4'-TCB (PCB-77) 1.37E-07 3.89E-07 2.66E-07 6.49E-07 1.07E-06 3.78E-07 1.28E-07 3.53E-07 5.37E-07 1.99E-06 1.97E-06 2.19E-07 1.03E-06 N/A

65510443 2',3,4,4',5-PeCB (PCB-123) 4.02E-08 1.14E-07 7.83E-08 1.91E-07 3.14E-07 1.11E-07 3.76E-08 1.04E-07 1.58E-07 1.91E-07 5.79E-07 6.44E-08 9.86E-08 N/A

31508006 2,3',4,4',5-PeCB (PCB-118) 1.76E-06 4.99E-06 3.42E-06 8.33E-06 1.37E-05 4.86E-06 1.64E-06 4.54E-06 6.89E-06 8.47E-06 2.53E-05 2.81E-06 4.37E-06 N/A

74472370 2,3,4,4',5-PeCB (PCB-114) 6.29E-08 1.78E-07 1.22E-07 2.98E-07 4.90E-07 1.74E-07 5.87E-08 1.62E-07 2.46E-07 2.53E-07 9.04E-07 1.01E-07 1.31E-07 N/A

32598144 2,3,3',4,4'-PeCB (PCB-105) 5.03E-07 1.14E-07 9.78E-07 2.38E-06 3.92E-06 1.39E-06 3.76E-08 1.30E-06 1.97E-06 3.37E-06 7.23E-06 8.05E-07 9.86E-08 N/A

57465288 3,3',4,4',5-PeCB (PCB-126) 2.93E-08 8.32E-08 5.70E-08 1.39E-07 2.28E-07 8.10E-08 2.74E-08 7.56E-08 1.15E-07 2.51E-07 4.21E-07 4.69E-08 1.30E-07 N/A

52663726 2,3',4,4',5,5'-HxCB (PCB-167) 6.50E-08 1.85E-07 1.27E-07 3.08E-07 5.07E-07 1.80E-07 6.08E-08 1.68E-07 2.55E-07 1.55E-07 9.36E-07 1.04E-07 8.02E-08 N/A

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) 1.75E-07 4.96E-07 3.40E-07 8.27E-07 1.36E-06 4.83E-07 1.63E-07 4.51E-07 6.85E-07 4.44E-07 2.51E-06 2.80E-07 2.29E-07 N/A

32774166 3,3',4,4',5,5'-HxCB (PCB-169) 1.39E-08 3.95E-08 2.71E-08 6.59E-08 1.08E-07 3.85E-08 1.30E-08 3.59E-08 5.45E-08 3.98E-08 2.00E-07 2.23E-08 2.05E-08 N/A

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) 3.15E-08 8.94E-08 6.13E-08 1.49E-07 2.46E-07 8.71E-08 2.94E-08 8.13E-08 1.23E-07 3.78E-08 4.53E-07 5.04E-08 1.95E-08 N/A

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene 1.29E-02 3.67E-02 2.51E-02 6.12E-02 1.01E-01 3.57E-02 1.21E-02 3.34E-02 5.07E-02 2.25E-01 1.86E-01 2.07E-02 1.16E-01 N/A

91576 2-Methylnaphthalene 1.22E-03 3.47E-03 2.38E-03 5.79E-03 9.52E-03 3.38E-03 1.14E-03 3.15E-03 4.79E-03 1.54E-01 1.76E-02 1.96E-03 1.51E-01 N/A

83329 Acenaphthene 1.33E-03 3.77E-03 2.58E-03 6.29E-03 1.04E-02 3.67E-03 1.24E-03 3.43E-03 5.21E-03 3.24E-01 1.91E-02 2.13E-03 3.18E-01 N/A

208968 Acenaphthylene 4.55E-05 1.29E-04 8.86E-05 2.16E-04 3.55E-04 1.26E-04 4.25E-05 1.18E-04 1.78E-04 2.58E-02 6.55E-04 7.29E-05 2.53E-02 N/A

86737 Fluorene 5.81E-04 1.65E-03 1.13E-03 2.75E-03 4.53E-03 1.61E-03 5.43E-04 1.50E-03 2.28E-03 5.96E-02 8.36E-03 9.30E-04 5.84E-02 N/A

85018 Phenanthrene 1.32E-03 3.76E-03 2.57E-03 6.27E-03 1.03E-02 3.66E-03 1.24E-03 3.41E-03 5.18E-03 4.59E-01 1.90E-02 2.12E-03 4.50E-01 N/A

120127 Anthracene 1.39E-04 3.93E-04 2.70E-04 6.56E-04 1.08E-03 3.83E-04 1.29E-04 3.58E-04 5.43E-04 5.14E-02 1.99E-03 2.22E-04 5.04E-02 N/A

206440 Fluoranthene 1.25E-03 3.55E-03 2.43E-03 5.92E-03 9.74E-03 3.45E-03 1.17E-03 3.22E-03 4.90E-03 6.68E-01 1.80E-02 2.00E-03 6.55E-01 N/A

129000 Pyrene 3.59E-04 1.02E-03 6.99E-04 1.70E-03 2.80E-03 9.93E-04 3.36E-04 9.27E-04 1.41E-03 1.60E-01 5.17E-03 5.75E-04 1.57E-01 N/A

56553 Benz[a]Anthracene 5.06E-05 1.44E-04 9.85E-05 2.40E-04 3.95E-04 1.40E-04 4.73E-05 1.31E-04 1.98E-04 8.20E-02 7.28E-04 8.10E-05 8.04E-02 N/A

218019 Chrysene 2.86E-04 8.13E-04 5.57E-04 1.36E-03 2.23E-03 7.92E-04 2.68E-04 7.39E-04 1.12E-03 2.43E-01 4.12E-03 4.59E-04 2.38E-01 N/A

205992 Benzo[b]Fluoranthene 2.23E-04 6.35E-04 4.35E-04 1.06E-03 1.74E-03 6.18E-04 2.09E-04 5.77E-04 8.76E-04 2.98E-01 3.21E-03 3.58E-04 2.92E-01 N/A

207089 Benzo[k]Fluoranthene 4.99E-05 1.42E-04 9.70E-05 2.36E-04 3.89E-04 1.38E-04 4.66E-05 1.29E-04 1.95E-04 1.13E-01 7.17E-04 7.98E-05 1.11E-01 N/A

192972 Benzo[e]Pyrene 9.03E-05 2.57E-04 1.76E-04 4.28E-04 7.04E-04 2.50E-04 8.44E-05 2.33E-04 3.54E-04 1.60E-01 1.30E-03 1.45E-04 1.57E-01 N/A

50328 Benzo[a]Pyrene 1.50E-05 4.25E-05 2.91E-05 7.09E-05 1.17E-04 4.14E-05 1.40E-05 3.86E-05 5.87E-05 4.11E-02 2.15E-04 2.40E-05 4.03E-02 N/A

198550 Perylene 1.11E-05 3.16E-05 2.17E-05 5.27E-05 8.68E-05 3.08E-05 1.04E-05 2.87E-05 4.36E-05 9.71E-03 1.60E-04 1.78E-05 9.52E-03 N/A

193395 Indeno[1,2,3-c,d]Pyrene 3.37E-05 9.56E-05 6.55E-05 1.59E-04 2.62E-04 9.31E-05 3.14E-05 8.69E-05 1.32E-04 5.03E-02 4.84E-04 5.39E-05 4.93E-02 N/A

53703 Dibenzo[a,h]Anthracene 2.93E-05 8.32E-05 5.70E-05 1.39E-04 2.29E-04 8.10E-05 2.74E-05 7.57E-05 1.15E-04 1.53E-02 4.22E-04 4.69E-05 1.50E-02 N/A

191242 Benzo[g,h,i,]Perylene 4.66E-05 1.32E-04 9.07E-05 2.21E-04 3.64E-04 1.29E-04 4.36E-05 1.20E-04 1.83E-04 6.19E-02 6.71E-04 7.46E-05 6.07E-02 N/A

Dioxins and Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin 4.58E-09 1.30E-08 8.91E-09 2.17E-08 3.57E-08 1.27E-08 4.28E-09 1.18E-08 1.80E-08 1.24E-08 6.59E-08 7.33E-09 6.41E-09 N/A

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin 3.89E-09 1.11E-08 7.58E-09 1.84E-08 3.04E-08 1.08E-08 3.64E-09 1.00E-08 1.53E-08 2.36E-08 5.60E-08 6.23E-09 1.22E-08 N/A

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin 3.87E-10 1.10E-09 7.52E-10 1.83E-09 3.01E-09 1.07E-09 3.61E-10 9.98E-10 1.52E-09 1.85E-08 5.56E-09 6.19E-10 9.57E-09 N/A

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin 7.73E-10 2.19E-09 1.50E-09 3.66E-09 6.02E-09 2.14E-09 7.22E-10 1.99E-09 3.03E-09 1.84E-08 1.11E-08 1.24E-09 9.50E-09 N/A

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin 7.40E-10 2.10E-09 1.44E-09 3.51E-09 5.77E-09 2.05E-09 6.91E-10 1.91E-09 2.90E-09 2.27E-08 1.06E-08 1.18E-09 1.17E-08 N/A

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin 3.63E-10 1.03E-09 7.06E-10 1.72E-09 2.83E-09 1.00E-09 3.39E-10 9.36E-10 1.42E-09 9.86E-08 5.22E-09 5.81E-10 5.09E-08 N/A

51207319 2,3,7,8-Tetrachlorodibenzofuran 1.10E-09 3.11E-09 2.13E-09 5.19E-09 8.54E-09 3.03E-09 1.02E-09 2.83E-09 4.30E-09 1.70E-07 1.58E-08 1.75E-09 8.75E-08 N/A

57117416 1,2,3,7,8-Pentachlorodibenzofuran 4.29E-10 1.22E-09 8.35E-10 2.03E-09 3.35E-09 1.19E-09 4.01E-10 1.11E-09 1.68E-09 9.99E-08 6.17E-09 6.87E-10 5.16E-08 N/A

57117314 2,3,4,7,8-Pentachlorodibenzofuran 1.45E-09 4.13E-09 2.83E-09 6.89E-09 1.13E-08 4.02E-09 1.36E-09 3.75E-09 5.70E-09 2.01E-07 2.09E-08 2.33E-09 1.04E-07 N/A

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran 4.77E-10 1.35E-09 9.28E-10 2.26E-09 3.72E-09 1.32E-09 4.45E-10 1.23E-09 1.87E-09 1.31E-07 6.86E-09 7.63E-10 6.76E-08 N/A

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran 6.07E-10 1.72E-09 1.18E-09 2.88E-09 4.73E-09 1.68E-09 5.67E-10 1.57E-09 2.38E-09 1.11E-07 8.73E-09 9.71E-10 5.73E-08 N/A

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran 6.49E-10 1.84E-09 1.26E-09 3.07E-09 5.06E-09 1.79E-09 6.06E-10 1.67E-09 2.54E-09 6.83E-09 9.33E-09 1.04E-09 3.53E-09 N/A

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran 6.84E-10 1.94E-09 1.33E-09 3.24E-09 5.33E-09 1.89E-09 6.39E-10 1.77E-09 2.68E-09 9.96E-08 9.84E-09 1.10E-09 5.14E-08 N/A

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran 2.22E-10 6.32E-10 4.33E-10 1.05E-09 1.73E-09 6.15E-10 2.08E-10 5.74E-10 8.72E-10 4.90E-07 3.20E-09 3.56E-10 2.53E-07 N/A

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran 9.89E-11 2.81E-10 1.93E-10 4.69E-10 7.71E-10 2.74E-10 9.24E-11 2.55E-10 3.88E-10 7.60E-08 1.42E-09 1.58E-10 3.92E-08 N/A

- N/A - no applicable emission unit at facility.

- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (estimated to be equal to 1.9 times the estimated actual emissions for polycyclic aromatic hydrocarbons and 1.0 times the estimated actual emissions for other species) are provided above; 

actual and acute emissions were modeled as zero.
15

Table 16: Anode Bake Furnace Organic Emission Rates (per release point)

CAS Pollutant Massena 

West

Warrick Wenatchee Alumax Noranda Century -

Sebree

Ormet Century of 

KY

Intalco Massena 

East

Century of 

WV

Rockdale Columbia 

Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

1 Release Point 1 Release Point 1 Release Point 1 Release Point 3 Release Points 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 2 Release Points

81,681 ton anode 168,663 ton 

anode

115,596 ton 

anode

140,733 ton 

anode

173,679 ton 

anode

123,177 ton 

anode

0 ton anode 153,330 ton 

anode

174,648 ton 

anode

0 ton anode 106,818 ton 

anode

118,874 ton 

anode

0 ton anode 150,000 ton 

anode

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) 2.54E-09 5.24E-09 3.59E-09 4.38E-09 1.80E-09 3.83E-09 N/A 4.77E-09 5.43E-09 N/A 3.32E-09 3.70E-09 N/A 2.33E-09

32598133 3,3',4,4'-TCB (PCB-77) 6.20E-09 1.28E-08 8.78E-09 1.07E-08 4.40E-09 9.36E-09 N/A 1.16E-08 1.33E-08 N/A 8.11E-09 9.03E-09 N/A 5.70E-09

65510443 2',3,4,4',5-PeCB (PCB-123) 1.52E-09 3.15E-09 2.16E-09 2.63E-09 1.08E-09 2.30E-09 N/A 2.86E-09 3.26E-09 N/A 1.99E-09 2.22E-09 N/A 1.40E-09

31508006 2,3',4,4',5-PeCB (PCB-118) 3.90E-08 8.06E-08 5.52E-08 6.72E-08 2.77E-08 5.89E-08 N/A 7.33E-08 8.34E-08 N/A 5.10E-08 5.68E-08 N/A 3.58E-08

74472370 2,3,4,4',5-PeCB (PCB-114) 1.46E-09 3.01E-09 2.07E-09 2.52E-09 1.03E-09 2.20E-09 N/A 2.74E-09 3.12E-09 N/A 1.91E-09 2.12E-09 N/A 1.34E-09

32598144 2,3,3',4,4'-PeCB (PCB-105) 1.66E-08 3.42E-08 2.34E-08 2.85E-08 1.17E-08 2.50E-08 N/A 3.11E-08 3.54E-08 N/A 2.17E-08 2.41E-08 N/A 1.52E-08

57465288 3,3',4,4',5-PeCB (PCB-126) 1.49E-09 3.07E-09 2.10E-09 2.56E-09 1.05E-09 2.24E-09 N/A 2.79E-09 3.18E-09 N/A 1.94E-09 2.16E-09 N/A 1.37E-09

52663726 2,3',4,4',5,5'-HxCB (PCB-167) 1.83E-09 3.77E-09 2.59E-09 3.15E-09 1.29E-09 2.76E-09 N/A 3.43E-09 3.91E-09 N/A 2.39E-09 2.66E-09 N/A 1.68E-09

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) 1.90E-09 3.93E-09 2.69E-09 3.28E-09 1.35E-09 2.87E-09 N/A 3.57E-09 4.07E-09 N/A 2.49E-09 2.77E-09 N/A 1.75E-09

32774166 3,3',4,4',5,5'-HxCB (PCB-169) 1.65E-09 3.41E-09 2.34E-09 2.85E-09 1.17E-09 2.49E-09 N/A 3.10E-09 3.53E-09 N/A 2.16E-09 2.40E-09 N/A 1.52E-09

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) 1.38E-09 2.84E-09 1.95E-09 2.37E-09 9.75E-10 2.07E-09 N/A 2.58E-09 2.94E-09 N/A 1.80E-09 2.00E-09 N/A 1.26E-09

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene 2.12E-01 4.37E-01 3.00E-01 3.65E-01 1.50E-01 3.19E-01 N/A 3.97E-01 4.53E-01 N/A 2.77E-01 3.08E-01 N/A 1.94E-01

91576 2-Methylnaphthalene 3.05E-02 6.29E-02 4.31E-02 5.25E-02 2.16E-02 4.59E-02 N/A 5.72E-02 6.51E-02 N/A 3.98E-02 4.43E-02 N/A 2.80E-02

83329 Acenaphthene 1.34E-03 2.78E-03 1.90E-03 2.32E-03 9.53E-04 2.03E-03 N/A 2.52E-03 2.87E-03 N/A 1.76E-03 1.96E-03 N/A 1.23E-03

208968 Acenaphthylene 9.48E-03 1.96E-02 1.34E-02 1.63E-02 6.72E-03 1.43E-02 N/A 1.78E-02 2.03E-02 N/A 1.24E-02 1.38E-02 N/A 8.70E-03

86737 Fluorene 4.55E-03 9.41E-03 6.45E-03 7.85E-03 3.23E-03 6.87E-03 N/A 8.55E-03 9.74E-03 N/A 5.96E-03 6.63E-03 N/A 4.18E-03

85018 Phenanthrene 1.34E-01 2.76E-01 1.89E-01 2.31E-01 9.49E-02 2.02E-01 N/A 2.51E-01 2.86E-01 N/A 1.75E-01 1.95E-01 N/A 1.23E-01

120127 Anthracene 1.15E-03 2.37E-03 1.63E-03 1.98E-03 8.14E-04 1.73E-03 N/A 2.16E-03 2.46E-03 N/A 1.50E-03 1.67E-03 N/A 1.06E-03

206440 Fluoranthene 1.91E-01 3.94E-01 2.70E-01 3.29E-01 1.35E-01 2.88E-01 N/A 3.58E-01 4.08E-01 N/A 2.50E-01 2.78E-01 N/A 1.75E-01

129000 Pyrene 1.62E-04 3.35E-04 2.30E-04 2.80E-04 1.15E-04 2.45E-04 N/A 3.05E-04 3.47E-04 N/A 2.12E-04 2.36E-04 N/A 1.49E-04

56553 Benz[a]Anthracene 1.22E-04 2.52E-04 1.72E-04 2.10E-04 8.64E-05 1.84E-04 N/A 2.29E-04 2.61E-04 N/A 1.59E-04 1.77E-04 N/A 1.12E-04

218019 Chrysene 1.57E-02 3.23E-02 2.21E-02 2.70E-02 1.11E-02 2.36E-02 N/A 2.94E-02 3.35E-02 N/A 2.05E-02 2.28E-02 N/A 1.44E-02

205992 Benzo[b]Fluoranthene 1.20E-02 2.48E-02 1.70E-02 2.07E-02 8.50E-03 1.81E-02 N/A 2.25E-02 2.56E-02 N/A 1.57E-02 1.75E-02 N/A 1.10E-02

207089 Benzo[k]Fluoranthene 4.26E-04 8.79E-04 6.03E-04 7.34E-04 3.02E-04 6.42E-04 N/A 7.99E-04 9.10E-04 N/A 5.57E-04 6.20E-04 N/A 3.91E-04

192972 Benzo[e]Pyrene 6.28E-04 1.30E-03 8.89E-04 1.08E-03 4.45E-04 9.47E-04 N/A 1.18E-03 1.34E-03 N/A 8.22E-04 9.14E-04 N/A 5.77E-04

50328 Benzo[a]Pyrene 2.91E-05 6.01E-05 4.12E-05 5.02E-05 2.06E-05 4.39E-05 N/A 5.47E-05 6.22E-05 N/A 3.81E-05 4.24E-05 N/A 2.67E-05

198550 Perylene 9.33E-06 1.93E-05 1.32E-05 1.61E-05 6.61E-06 1.41E-05 N/A 1.75E-05 1.99E-05 N/A 1.22E-05 1.36E-05 N/A 8.57E-06

193395 Indeno[1,2,3-c,d]Pyrene 1.30E-04 2.68E-04 1.84E-04 2.24E-04 9.21E-05 1.96E-04 N/A 2.44E-04 2.78E-04 N/A 1.70E-04 1.89E-04 N/A 1.19E-04

53703 Dibenzo[a,h]Anthracene 9.53E-05 1.97E-04 1.35E-04 1.64E-04 6.76E-05 1.44E-04 N/A 1.79E-04 2.04E-04 N/A 1.25E-04 1.39E-04 N/A 8.75E-05

191242 Benzo[g,h,i,]Perylene 4.81E-05 9.92E-05 6.80E-05 8.28E-05 3.41E-05 7.25E-05 N/A 9.02E-05 1.03E-04 N/A 6.29E-05 6.99E-05 N/A 4.41E-05

Dioxins and Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin 8.34E-10 1.72E-09 1.18E-09 1.44E-09 5.91E-10 1.26E-09 N/A 1.57E-09 1.78E-09 N/A 1.09E-09 1.21E-09 N/A 7.66E-10

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin 6.37E-10 1.32E-09 9.02E-10 1.10E-09 4.52E-10 9.61E-10 N/A 1.20E-09 1.36E-09 N/A 8.33E-10 9.27E-10 N/A 5.85E-10

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin 3.12E-11 6.45E-11 4.42E-11 5.38E-11 2.21E-11 4.71E-11 N/A 5.86E-11 6.68E-11 N/A 4.09E-11 4.55E-11 N/A 2.87E-11

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin 2.62E-11 5.42E-11 3.71E-11 4.52E-11 1.86E-11 3.96E-11 N/A 4.93E-11 5.61E-11 N/A 3.43E-11 3.82E-11 N/A 2.41E-11

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin 3.49E-11 7.20E-11 4.94E-11 6.01E-11 2.47E-11 5.26E-11 N/A 6.55E-11 7.46E-11 N/A 4.56E-11 5.08E-11 N/A 3.20E-11

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin 3.11E-11 6.42E-11 4.40E-11 5.36E-11 2.20E-11 4.69E-11 N/A 5.84E-11 6.65E-11 N/A 4.07E-11 4.53E-11 N/A 2.86E-11

51207319 2,3,7,8-Tetrachlorodibenzofuran 1.37E-10 2.83E-10 1.94E-10 2.37E-10 9.73E-11 2.07E-10 N/A 2.58E-10 2.94E-10 N/A 1.80E-10 2.00E-10 N/A 1.26E-10

57117416 1,2,3,7,8-Pentachlorodibenzofuran 1.63E-11 3.36E-11 2.30E-11 2.80E-11 1.15E-11 2.45E-11 N/A 3.06E-11 3.48E-11 N/A 2.13E-11 2.37E-11 N/A 1.49E-11

57117314 2,3,4,7,8-Pentachlorodibenzofuran 1.24E-10 2.55E-10 1.75E-10 2.13E-10 8.76E-11 1.86E-10 N/A 2.32E-10 2.64E-10 N/A 1.62E-10 1.80E-10 N/A 1.14E-10

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran 3.29E-11 6.80E-11 4.66E-11 5.67E-11 2.33E-11 4.97E-11 N/A 6.18E-11 7.04E-11 N/A 4.31E-11 4.79E-11 N/A 3.02E-11

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran 3.31E-11 6.83E-11 4.68E-11 5.70E-11 2.34E-11 4.99E-11 N/A 6.21E-11 7.07E-11 N/A 4.32E-11 4.81E-11 N/A 3.04E-11

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran 4.24E-11 8.76E-11 6.01E-11 7.31E-11 3.01E-11 6.40E-11 N/A 7.97E-11 9.07E-11 N/A 5.55E-11 6.18E-11 N/A 3.90E-11

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran 1.06E-10 2.18E-10 1.50E-10 1.82E-10 7.49E-11 1.59E-10 N/A 1.98E-10 2.26E-10 N/A 1.38E-10 1.54E-10 N/A 9.71E-11

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran 1.46E-11 3.01E-11 2.06E-11 2.51E-11 1.03E-11 2.20E-11 N/A 2.74E-11 3.12E-11 N/A 1.91E-11 2.12E-11 N/A 1.34E-11

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran 5.01E-12 1.04E-11 7.10E-12 8.64E-12 3.55E-12 7.56E-12 N/A 9.41E-12 1.07E-11 N/A 6.56E-12 7.30E-12 N/A 4.60E-12

- N/A - no applicable emission unit at facility.
16

Table 17: Anode Paste Plant Organic Emission Rates (per release point)

CAS Pollutant Massena 

West

Warrick Wenatchee Alumax Noranda Century -

Sebree

Ormet Century of 

KY

Intalco Massena 

East

Century of 

WV

Rockdale Columbia 

Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

1 Release Point 1 Release Point 1 Release Point 1 Release Point 1 Release Point 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 1 Release Point 1 Release Point 1 Release Point 1 Release Point

81,681 ton anode 168,663 ton 

anode

115,596 ton 

anode

140,733 ton 

anode

173,679 ton 

anode

123,177 ton anode 0 ton anode 153,330 ton 

anode

174,648 ton 

anode

0 ton anode 106,818 ton 

anode

118,874 ton 

anode

84,451 ton anode 150,000 ton 

anode

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

Polychlorinated Biphenyls

70362504 3,4,4',5-TCB (PCB-81) 1.64E-09 3.38E-09 2.32E-09 2.82E-09 3.48E-09 2.47E-09 N/A 3.07E-09 3.50E-09 N/A 2.14E-09 2.38E-09 1.35E-09 3.00E-09

32598133 3,3',4,4'-TCB (PCB-77) 1.69E-09 3.50E-09 2.40E-09 2.92E-09 3.60E-09 2.56E-09 N/A 3.18E-09 3.62E-09 N/A 2.22E-09 2.47E-09 1.40E-09 3.11E-09

65510443 2',3,4,4',5-PeCB (PCB-123) 8.70E-10 1.80E-09 1.23E-09 1.50E-09 1.85E-09 1.31E-09 N/A 1.63E-09 1.86E-09 N/A 1.14E-09 1.27E-09 7.19E-10 1.60E-09

31508006 2,3',4,4',5-PeCB (PCB-118) 1.11E-09 2.28E-09 1.57E-09 1.91E-09 2.35E-09 1.67E-09 N/A 2.08E-09 2.36E-09 N/A 1.45E-09 1.61E-09 9.15E-10 2.03E-09

74472370 2,3,4,4',5-PeCB (PCB-114) 8.19E-10 1.69E-09 1.16E-09 1.41E-09 1.74E-09 1.23E-09 N/A 1.54E-09 1.75E-09 N/A 1.07E-09 1.19E-09 6.77E-10 1.50E-09

32598144 2,3,3',4,4'-PeCB (PCB-105) 8.37E-10 1.73E-09 1.18E-09 1.44E-09 1.78E-09 1.26E-09 N/A 1.57E-09 1.79E-09 N/A 1.09E-09 1.22E-09 7.19E-10 1.54E-09

57465288 3,3',4,4',5-PeCB (PCB-126) 7.88E-10 1.63E-09 1.12E-09 1.36E-09 1.68E-09 1.19E-09 N/A 1.48E-09 1.68E-09 N/A 1.03E-09 1.15E-09 6.52E-10 1.45E-09

52663726 2,3',4,4',5,5'-HxCB (PCB-167) 4.83E-10 9.98E-10 6.84E-10 8.33E-10 1.03E-09 7.29E-10 N/A 9.07E-10 1.03E-09 N/A 6.32E-10 7.03E-10 4.00E-10 8.87E-10

38380084 2,3,3',4,4',5/2,3,3',4,4',5-HxCB (PCBs-156/157) 6.05E-10 1.25E-09 8.57E-10 1.04E-09 1.29E-09 9.13E-10 N/A 1.14E-09 1.29E-09 N/A 7.92E-10 8.81E-10 5.01E-10 1.11E-09

32774166 3,3',4,4',5,5'-HxCB (PCB-169) 5.64E-10 1.16E-09 7.98E-10 9.71E-10 1.20E-09 8.50E-10 N/A 1.06E-09 1.21E-09 N/A 7.37E-10 8.20E-10 4.66E-10 1.04E-09

39635319 2,3,3',4,4',5,5'-HpCB (PCB-189) 4.58E-10 9.46E-10 6.48E-10 7.89E-10 9.74E-10 6.91E-10 N/A 8.60E-10 9.79E-10 N/A 5.99E-10 6.67E-10 3.79E-10 8.41E-10

Polycyclic Aromatic Hydrocarbons

91203 Naphthalene 6.62E-03 1.37E-02 9.37E-03 1.14E-02 1.41E-02 9.98E-03 N/A 1.24E-02 1.42E-02 N/A 8.66E-03 9.63E-03 5.48E-03 1.22E-02

91576 2-Methylnaphthalene 2.62E-03 5.41E-03 3.71E-03 4.51E-03 5.57E-03 3.95E-03 N/A 4.92E-03 5.60E-03 N/A 3.43E-03 3.81E-03 4.12E-03 4.81E-03

83329 Acenaphthene 9.94E-02 2.05E-01 1.41E-01 1.71E-01 2.11E-01 1.50E-01 N/A 1.87E-01 2.12E-01 N/A 1.30E-01 1.45E-01 1.56E-01 1.82E-01

208968 Acenaphthylene 1.69E-04 3.50E-04 2.40E-04 2.92E-04 3.60E-04 2.56E-04 N/A 3.18E-04 3.62E-04 N/A 2.22E-04 2.47E-04 2.66E-04 3.11E-04

86737 Fluorene 1.27E-02 2.63E-02 1.80E-02 2.19E-02 2.70E-02 1.92E-02 N/A 2.39E-02 2.72E-02 N/A 1.66E-02 1.85E-02 2.00E-02 2.34E-02

85018 Phenanthrene 3.79E-02 7.82E-02 5.36E-02 6.52E-02 8.05E-02 5.71E-02 N/A 7.11E-02 8.09E-02 N/A 4.95E-02 5.51E-02 5.95E-02 6.95E-02

120127 Anthracene 2.91E-03 6.02E-03 4.12E-03 5.02E-03 6.19E-03 4.39E-03 N/A 5.47E-03 6.23E-03 N/A 3.81E-03 4.24E-03 4.58E-03 5.35E-03

206440 Fluoranthene 2.67E-03 5.51E-03 3.77E-03 4.59E-03 5.67E-03 4.02E-03 N/A 5.01E-03 5.70E-03 N/A 3.49E-03 3.88E-03 4.19E-03 4.90E-03

129000 Pyrene 1.42E-03 2.94E-03 2.02E-03 2.45E-03 3.03E-03 2.15E-03 N/A 2.67E-03 3.04E-03 N/A 1.86E-03 2.07E-03 2.24E-03 2.61E-03

56553 Benz[a]Anthracene 1.64E-05 3.38E-05 2.32E-05 2.82E-05 3.48E-05 2.47E-05 N/A 3.07E-05 3.50E-05 N/A 2.14E-05 2.38E-05 2.57E-05 3.01E-05

218019 Chrysene 2.85E-07 5.89E-07 4.03E-07 4.91E-07 6.06E-07 4.30E-07 N/A 5.35E-07 6.09E-07 N/A 3.73E-07 4.15E-07 4.48E-07 5.23E-07

205992 Benzo[b]Fluoranthene 6.96E-06 1.44E-05 9.84E-06 1.20E-05 1.48E-05 1.05E-05 N/A 1.31E-05 1.49E-05 N/A 9.10E-06 1.01E-05 1.09E-05 1.28E-05

207089 Benzo[k]Fluoranthene 2.15E-06 4.43E-06 3.04E-06 3.70E-06 4.56E-06 3.24E-06 N/A 4.03E-06 4.59E-06 N/A 2.81E-06 3.12E-06 3.37E-06 3.94E-06

192972 Benzo[e]Pyrene 3.41E-06 7.04E-06 4.82E-06 5.87E-06 7.24E-06 5.14E-06 N/A 6.40E-06 7.28E-06 N/A 4.46E-06 4.96E-06 5.35E-06 6.26E-06

50328 Benzo[a]Pyrene 2.17E-06 4.48E-06 3.07E-06 3.74E-06 4.62E-06 3.27E-06 N/A 4.07E-06 4.64E-06 N/A 2.84E-06 3.16E-06 3.41E-06 3.99E-06

198550 Perylene 4.29E-07 8.85E-07 6.07E-07 7.39E-07 9.12E-07 6.47E-07 N/A 8.05E-07 9.17E-07 N/A 5.61E-07 6.24E-07 6.74E-07 7.87E-07

193395 Indeno[1,2,3-c,d]Pyrene 6.33E-07 1.31E-06 8.96E-07 1.09E-06 1.35E-06 9.55E-07 N/A 1.19E-06 1.35E-06 N/A 8.28E-07 9.21E-07 9.95E-07 1.16E-06

53703 Dibenzo[a,h]Anthracene 2.85E-07 5.89E-07 4.03E-07 4.91E-07 6.06E-07 4.30E-07 N/A 5.35E-07 6.09E-07 N/A 3.73E-07 4.15E-07 4.48E-07 5.23E-07

191242 Benzo[g,h,i,]Perylene 6.07E-07 1.25E-06 8.59E-07 1.05E-06 1.29E-06 9.15E-07 N/A 1.14E-06 1.30E-06 N/A 7.94E-07 8.83E-07 9.54E-07 1.11E-06

Dioxins and Furans

1746016 2,3,7,8-Tetrachlorodibenzo-p-Dioxin 2.07E-11 4.26E-11 2.92E-11 3.56E-11 4.39E-11 3.11E-11 N/A 3.88E-11 4.42E-11 N/A 2.70E-11 3.01E-11 1.71E-11 3.79E-11

40321764 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin 1.96E-11 4.04E-11 2.77E-11 3.37E-11 4.16E-11 2.95E-11 N/A 3.68E-11 4.19E-11 N/A 2.56E-11 2.85E-11 1.62E-11 3.60E-11

39227286 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin 1.34E-12 2.76E-12 1.89E-12 2.31E-12 2.85E-12 2.02E-12 N/A 2.51E-12 2.86E-12 N/A 1.75E-12 1.95E-12 1.11E-12 2.46E-12

57653857 1,2,3,6,7,8-Hexachlorodibenzo-p-Dioxin 2.09E-12 4.32E-12 2.96E-12 3.60E-12 4.45E-12 3.16E-12 N/A 3.93E-12 4.47E-12 N/A 2.74E-12 3.04E-12 1.73E-12 3.84E-12

19408743 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin 1.41E-12 2.92E-12 2.00E-12 2.44E-12 3.01E-12 2.13E-12 N/A 2.66E-12 3.02E-12 N/A 1.85E-12 2.06E-12 1.17E-12 2.60E-12

35822469 1,2,3,4,6,7,8-Heptachlorodibenzodioxin 2.82E-13 5.83E-13 4.00E-13 4.87E-13 6.01E-13 4.26E-13 N/A 5.30E-13 6.04E-13 N/A 3.69E-13 4.11E-13 2.34E-13 5.19E-13

51207319 2,3,7,8-Tetrachlorodibenzofuran 1.22E-12 2.53E-12 1.73E-12 2.11E-12 2.60E-12 1.85E-12 N/A 2.30E-12 2.62E-12 N/A 1.60E-12 1.78E-12 1.01E-12 2.25E-12

57117416 1,2,3,7,8-Pentachlorodibenzofuran 7.79E-13 1.61E-12 1.10E-12 1.34E-12 1.66E-12 1.17E-12 N/A 1.46E-12 1.67E-12 N/A 1.02E-12 1.13E-12 6.44E-13 1.43E-12

57117314 2,3,4,7,8-Pentachlorodibenzofuran 2.75E-12 5.68E-12 3.90E-12 4.74E-12 5.85E-12 4.15E-12 N/A 5.17E-12 5.89E-12 N/A 3.60E-12 4.01E-12 2.28E-12 5.06E-12

70648269 1,2,3,4,7,8-Hexachlorodibenzofuran 1.30E-12 2.68E-12 1.84E-12 2.24E-12 2.76E-12 1.96E-12 N/A 2.44E-12 2.78E-12 N/A 1.70E-12 1.89E-12 1.08E-12 2.39E-12

57117449 1,2,3,6,7,8-Hexachlorodibenzofuran 1.47E-12 3.05E-12 2.09E-12 2.54E-12 3.14E-12 2.22E-12 N/A 2.77E-12 3.15E-12 N/A 1.93E-12 2.15E-12 1.22E-12 2.71E-12

72918219 1,2,3,7,8,9-Hexachlorodibenzofuran 1.26E-12 2.61E-12 1.79E-12 2.18E-12 2.69E-12 1.90E-12 N/A 2.37E-12 2.70E-12 N/A 1.65E-12 1.84E-12 1.04E-12 2.32E-12

60851345 2,3,4,6,7,8-Hexachlorodibenzofuran 1.96E-12 4.04E-12 2.77E-12 3.37E-12 4.16E-12 2.95E-12 N/A 3.67E-12 4.18E-12 N/A 2.56E-12 2.85E-12 1.62E-12 3.59E-12

67562394 1,2,3,4,6,7,8-Heptachlorodibenzofuran 1.15E-13 2.37E-13 1.62E-13 1.98E-13 2.44E-13 1.73E-13 N/A 2.15E-13 2.45E-13 N/A 1.50E-13 1.67E-13 9.49E-14 2.11E-13

55673897 1,2,3,4,7,8,9-Heptachlorodibenzofuran 1.53E-13 3.16E-13 2.17E-13 2.64E-13 3.25E-13 2.31E-13 N/A 2.87E-13 3.27E-13 N/A 2.00E-13 2.23E-13 1.27E-13 2.81E-13

- N/A - no applicable emission unit at facility.

.- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (estimated to be equal to 1.9 times estimated actual emissions for polycyclic aromatic hydrocarbons and 1.0 times estimated actual emissions for other species) are provided above; 

actual and acute emissions were modeled as zero.
17

b. Pitch Storage Tanks

Emissions for speciated PAH were developed using available PAH performance test data from Massena 

East potroom vents in conjunction with a series of engineering assumptions and unit conversions. The

first step in determining the pitch storage tank PAH emissions was to estimate the volume of gas

displaced annually from pitch tanks (i.e., the working losses of the tanks). As a general approximation, it 

was assumed that the volume of pitch added to the tank equals the volume of gas displaced as the tank is

filled, as shown:

Displaced gas (

cuft pitch

yr ) = Aluminum Capacity (

ton Al

yr ) × 0.57 (

ton green anode

ton Al )

× 0.22 (

ton pitch

ton green anode) × (

2000 lb pitch

ton pitch

) × [

1

78] (

cuft pitch

lb pitch

)

Where:

 Assumed cubic feet (cu ft) pitch added to tank is equal to cu ft gas displaced from tank.

 Green anode produced per ton of aluminum for bake furnace and paste plant = 0.57 (ton 

green anode/ton aluminum), (the industry average value provided by The Aluminum 

Association).

 Green anode paste consists of 22% (0.22) pitch and 78% petroleum coke (the industry 

average values provided by The Aluminum Association).

 Density of pitch = 78 (lb/cu ft); based on pitch specific gravity of 1.25 as suggested by 

Suriyapraphadilok, U., et al. 

(http://www.acs.omnibooksonline.com/data/papers/2004_D013.pdf).

The next step is to approximate the hydrocarbon content of the displaced gas (i.e., what portion of the 

displaced gas contains volatile hydrocarbon) and then speciate that volatile portion of the displaced gas 

using PAH mass fractions. PAH mass fractions were developed from Massena East potline roof vent 

performance test data, as shown in Table 18. Speciated pitch storage tank PAH emissions are 

approximated as follows:

PAH emissions (

ton

yr ) = displaced gas (

cuft pitch gas

yr ) × 0.0034 (

cu ft hydrocarbon

cu ft pitch gas ) ×

[

1

359] (

lb ∙ mol hydrocarbon

cu ft hydrocarbon ) × [mass fraction ] (

lb⁄ton

lb⁄ton) × molecular weight (

lb

lb ∙ mole) ×

× temperature conversion [

273

423] × [

1

2000] (

ton

lb )

Where:

 0.0034 = approximated percent volume of hydrocarbon in pitch gas based on calculated 

vapor pressure of oxidized asphalt at 300 degrees Fahrenheit (assumed to approximate 

pitch at that temperature, based on available data) of 0.0034 atmospheres (0.34 percent).

 1 lb mole of ideal gas at standard temperature and pressure occupies 359 cu ft.

 Mass fractions shown in Table 18. Assumed that speciation profile of Massena East roof 

vent PAH performance test report is similar to the speciation of the volatile portion of the 

displaced pitch gas.

 Molecular weight of each PAH constituent is used to speciate total PAH.

 Temperature conversion accounts for gas temperature of 150°C
18

Table 18: Summary of Pitch Storage Tank Vapor Emissions a

CAS Pollutant

Molecular 

Weight

Massena East

Potline Vent 

Emissions 

Rate

Estimated 

Mole Fraction

in Organic 

(lb/lb.mol) (SPPD_FAC_10) Vapors

(lb/ton Al)

91203 Naphthalene 128.17 1.96E-02 1.40E-02

91576 2-Methylnaphthalene 142.20 1.34E-02 9.60E-03

83329 Acenaphthene 154.21 2.82E-02 2.02E-02

208968 Acenaphthylene 152.19 2.25E-03 1.61E-03

86737 Fluorene 166.22 5.19E-03 3.70E-03

85018 Phenanthrene 178.23 4.00E-02 2.86E-02

120127 Anthracene 178.23 4.48E-03 3.20E-03

206440 Fluoranthene 202.26 5.82E-02 4.16E-02

129000 Pyrene 202.25 1.39E-02 9.93E-03

56553 Benz[a]anthracene 228.29 7.14E-03 5.10E-03

218019 Chrysene 228.28 2.11E-02 1.51E-02

205992 Benzo[b]fluoranthene 252.31 2.59E-02 1.85E-02

207089 Benzo[k]fluoranthene 252.31 9.88E-03 7.06E-03

192972 Benzo[e]pyrene 252.31 1.40E-02 9.98E-03

50328 Benzo[a]pyrene 252.31 3.58E-03 2.56E-03

198550 Perylene 252.31 8.46E-04 6.04E-04

193395 Indeno[1,2,3-c,d]Pyrene 276.33 4.38E-03 3.13E-03

53703 Dibenzo[a,h]anthracene 278.35 1.33E-03 9.49E-04

191242 Benzo[g,h,i,]Perylene 276.33 5.39E-03 3.85E-03

a Developed from Massena East potline vent emissions test data, based on emission rate of 1.95 E-05 lbmoles hydrocarbon/ton Al produced.

Table 19 details the pitch storage tank emission rates. Note that Wenatchee, Intalco, and Lake Charles 

pitch storage tank emissions are routed through control devices.
19

Table 19: Pitch Storage Tank Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda Century -Sebree Ormet Century of KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls Lake Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

1 Release 

Point

1 Release 

Point

1 Release 

Point

1 Release 

Point

1 Release 

Point 1 Release Point 0 Release Points

1 Release 

Point

1 Release 

Point

0 Release 

Points

1 Release 

Point

0 Release 

Point

1 Release 

Point 1 Release Point

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 150,000 ton anode

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

91203 Naphthalene 2.53E-03 5.22E-03 1.79E-04 4.35E-03 5.37E-03 3.81E-03 N/A 4.74E-03 2.70E-04 N/A 3.30E-03 N/A 2.61E-03 4.64E-05

91576 2-Methylnaphthalene 1.92E-03 3.97E-03 1.36E-04 3.31E-03 4.09E-03 2.90E-03 N/A 3.61E-03 2.05E-04 N/A 2.51E-03 N/A 3.77E-03 3.53E-05

83329 Acenaphthene 4.38E-03 9.04E-03 3.10E-04 7.55E-03 9.31E-03 6.60E-03 N/A 8.22E-03 4.68E-04 N/A 5.73E-03 N/A 8.60E-03 8.04E-05

208968 Acenaphthylene 3.44E-04 7.11E-04 2.44E-05 5.93E-04 7.32E-04 5.19E-04 N/A 6.47E-04 3.68E-05 N/A 4.50E-04 N/A 6.77E-04 6.33E-06

86737 Fluorene 8.67E-04 1.79E-03 6.14E-05 1.49E-03 1.84E-03 1.31E-03 N/A 1.63E-03 9.27E-05 N/A 1.13E-03 N/A 1.70E-03 1.59E-05

85018 Phenanthrene 7.17E-03 1.48E-02 5.07E-04 1.24E-02 1.52E-02 1.08E-02 N/A 1.35E-02 7.67E-04 N/A 9.38E-03 N/A 1.41E-02 1.32E-04

120127 Anthracene 8.03E-04 1.66E-03 5.68E-05 1.38E-03 1.71E-03 1.21E-03 N/A 1.51E-03 8.58E-05 N/A 1.05E-03 N/A 1.58E-03 1.47E-05

206440 Fluoranthene 1.18E-02 2.44E-02 8.38E-04 2.04E-02 2.52E-02 1.79E-02 N/A 2.22E-02 1.27E-03 N/A 1.55E-02 N/A 2.33E-02 2.17E-04

129000 Pyrene 2.83E-03 5.84E-03 2.00E-04 4.87E-03 6.01E-03 4.26E-03 N/A 5.31E-03 3.02E-04 N/A 3.70E-03 N/A 5.55E-03 5.19E-05

56553 Benz[a]anthracene 1.64E-03 3.39E-03 1.16E-04 2.83E-03 3.49E-03 2.47E-03 N/A 3.08E-03 1.75E-04 N/A 2.15E-03 N/A 3.22E-03 3.01E-05

218019 Chrysene 4.85E-03 1.00E-02 3.43E-04 8.36E-03 1.03E-02 7.32E-03 N/A 9.11E-03 5.19E-04 N/A 6.35E-03 N/A 9.53E-03 8.91E-05

205992 Benzo[b]fluoranthene 6.58E-03 1.36E-02 4.66E-04 1.13E-02 1.40E-02 9.92E-03 N/A 1.24E-02 7.04E-04 N/A 8.61E-03 N/A 1.29E-02 1.21E-04

207089 Benzo[k]fluoranthene 2.51E-03 5.18E-03 1.77E-04 4.32E-03 5.33E-03 3.78E-03 N/A 4.71E-03 2.68E-04 N/A 3.28E-03 N/A 4.93E-03 4.61E-05

192972 Benzo[e]pyrene 3.55E-03 7.32E-03 2.51E-04 6.11E-03 7.54E-03 5.35E-03 N/A 6.66E-03 3.79E-04 N/A 4.64E-03 N/A 6.97E-03 6.51E-05

50328 Benzo[a]pyrene 9.09E-04 1.88E-03 6.43E-05 1.57E-03 1.93E-03 1.37E-03 N/A 1.71E-03 9.71E-05 N/A 1.19E-03 N/A 1.78E-03 1.67E-05

198550 Perylene 2.15E-04 4.43E-04 1.52E-05 3.70E-04 4.56E-04 3.24E-04 N/A 4.03E-04 2.29E-05 N/A 2.81E-04 N/A 4.22E-04 3.94E-06

193395 Indeno[1,2,3-c,d]Pyrene 1.22E-03 2.51E-03 8.61E-05 2.10E-03 2.59E-03 1.83E-03 N/A 2.28E-03 1.30E-04 N/A 1.59E-03 N/A 2.39E-03 2.23E-05

53703 Dibenzo[a,h]anthracene 3.72E-04 7.68E-04 2.63E-05 6.41E-04 7.91E-04 5.61E-04 N/A 6.98E-04 3.98E-05 N/A 4.86E-04 N/A 7.31E-04 6.83E-06

191242 Benzo[g,h,i,]Perylene 1.50E-03 3.09E-03 1.06E-04 2.58E-03 3.19E-03 2.26E-03 N/A 2.81E-03 1.60E-04 N/A 1.96E-03 N/A 2.94E-03 2.75E-05

- N/A = Not applicable, no pitch storage tank at facility.

- Lake Charles based on Anode production

- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (estimated to be equal to 1.9 times estimated actual emissions) are shown above, actual and acute emissions were modeled as zero.

- Control Multiplier (1 - control efficiency)

 - SPPD_FAC_03 = 0.05

 - SPPD_FAC_09 = 0.05

 - SPPD_FAC_14 = 0.01
20

3. Hydrogen Fluoride and Carbonyl Sulfide

a. Potline Stack, Potline Roof Vent, and Anode Bake Furnace

COS emission rates were taken directly from the 2011 modeling effort (see docket item EPA-HQ-OAR2011-0797-0146) and are summarized in Table 20.

Emission factors in units of pounds per ton capacity (aluminum or anode) (lb/ton) for HF were based on 

available performance test data. When performance test data were not available, actual HF emission 

factors were derived based on total fluoride (TF) limits. In these cases, the TF potroom limit was 

apportioned to potline stacks (10%) and potline roof vents (90%) consistent with facilities for which 

data were available. Then, the allowable HF emission factors (derived from TF) were estimated to be 

50% of the allowable TF limit, and the actual HF emission factors were estimated to be 2/3 of the 

allowable HF emission factor. Table 21 details the facilities for which performance test data were

available and summarizes the emission factors developed for this effort.

Emission rates in units of ton/yr on an individual emission unit basis were developed by multiplying the 

emission factor (lb/ton capacity) of a pollutant by the associated facility’s aluminum or anode 

production capacity and then dividing by number of emission points at the facility, as shown:

Emission rate per point (

ton pollutant

year ) = Factor (

lb pollutant

ton capacity) × Capacity (

ton capacity

year ) ×

Conversion (

1 ton

2000 lb) ÷ number of emission points

Table 22 details the emissions rates that were developed.

Table 20: Summary of Potline Stack COS Emission Rates

Facility Identifier Facility Name COS Emissions Rates

(tons/yr)

SPPD_FAC_01 Alcoa - Massena West 7.08E+01

SPPD_FAC_02 Alcoa - Warrick 1.03E+02

SPPD_FAC_03 Alcoa - Wenatchee 8.38E+01

SPPD_FAC_04 Alumax - Mt. Holly 9.67E+01

SPPD_FAC_05 Noranda Aluminum 2.44E+01

SPPD_FAC_06 Century - Sebree 5.13E+01

SPPD_FAC_07 Ormet Primary Aluminum 6.77E+01

SPPD_FAC_08 Century Aluminum of KY 1.92E+02

SPPD_FAC_09 Intalco Aluminum 8.84E+00

SPPD_FAC_10 Alcoa - Massena East 6.26E+01

SPPD_FAC_11 Century Aluminum of WV 2.51E+02

SPPD_FAC_12 Alcoa - Rockdale 4.53E+00

SPPD_FAC_13 Columbia Falls Aluminum 1.69E+02

SPPD_FAC_14 Lake Charles Carbon N/A

- COS emission rates from potline roof vents are assumed to be zero. All COS emissions, estimated by a mass balance approach, are 

attributed to the potline stacks.
21

Table 21: Hydrogen Fluoride Emission Factors

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda Century -Sebree Ormet Century of KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

Potline Stack (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al)

7664393 Hydrogen Fluoride 0.050 0.080 0.044 0.034 0.029 0.063 0.050 0.375 0.050 0.030 0.101 0.101 0.090 N/A

Total Fluoride 1.020 3.000 3.000 2.700 N/A

Potline Roof Vent (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al) (lb/ton Al)

7664393 Hydrogen Fluoride 0.460 0.660 0.440 0.308 0.760 0.570 0.780 0.342 0.500 1.030 0.905 0.905 0.814 N/A

Total Fluoride 1.020 3.000 3.000 2.700 N/A

Anode Bake Furnace (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode) (lb/ton Anode)

7664393 Hydrogen Fluoride 0.067 0.067 0.067 0.067 0.067 0.001 N/A 0.067 0.067 N/A 0.067 0.099 N/A 0.067

Total Fluoride 0.200 0.200 0.200 0.200 0.200 N/A 0.200 0.200 N/A 0.200 N/A 0.200

- N/A = Not applicable, no emission unit at facility.

- Blue values are original information request test results, all other values derived based on total fluoride limits.

- Total fluoride potroom limit was apportioned to potline stacks (10%) and potline roof vents (90%)

- For Alumax (SPPD_FAC_04), a more stringent potline limit imposed by State regulations was applied.

Table 22: Hydrogen Fluoride Emission Rates (per release point)

CAS Pollutant Massena 

West Warrick Wenatchee Alumax Noranda Century -Sebree Ormet Century of KY Intalco Massena East

Century of 

WV Rockdale Columbia Falls

Lake 

Charles

SPPD_FAC_01 SPPD_FAC_02 SPPD_FAC_03 SPPD_FAC_04 SPPD_FAC_05 SPPD_FAC_06 SPPD_FAC_07 SPPD_FAC_08 SPPD_FAC_09 SPPD_FAC_10 SPPD_FAC_11 SPPD_FAC_12 SPPD_FAC_13 SPPD_FAC_14

(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

Potline Stack 3 Release Points 5 Release Points 4 Release Points 4 Release Points 4 Release Points 6 Release Points 6 Release Points 2 Release Points

18 Release 

Points 2 Release Points 1 Release Point

45 Release 

Points

10 Release 

Points 0 Release Points

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 150,000 ton Al

7664393 Hydrogen Fluoride 1.194 2.367 1.115 1.440 1.105 1.135 1.217 25.219 0.426 0.689 9.417 0.233

 

1.018 N/A

Potline Roof Vent

11 Release 

Points

10 Release 

Points 8 Release Points 4 Release Points 3 Release Points 6 Release Points

24 Release 

Points 8 Release Points 6 Release Points 4 Release Points 1 Release Point

10 Release 

Points

10 Release 

Points 0 Release Points

143,300 ton Al 295,900 ton Al 202,800 ton Al 246,900 ton Al 304,700 ton Al 216,100 ton Al 292,100 ton Al 269,000 ton Al 306,400 ton Al 91,867 ton Al 187,400 ton Al 208,550 ton Al 148,160 ton Al 150,000 ton Al

7664393 Hydrogen Fluoride 2.996 12.206 5.577

 

14.900 38.595 10.265

 

4.747 5.750

 

7.163 11.828 84.752 9.432

 

9.166 N/A

Anode Bake Furnace 1 Release Point 1 Release Point 1 Release Point 1 Release Point 3 Release Points 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 1 Release Point 1 Release Point 0 Release Points 2 Release Points

81,681 ton 

Anode

168,663 ton 

Anode

115,596 ton 

Anode

140,733 ton 

Anode

173,679 ton 

Anode

123,177 ton 

Anode

166,497 ton 

Anode

153,330 ton 

Anode

174,648 ton 

Anode

52,364 ton 

Anode

106,818 ton 

Anode

118,874 ton 

Anode

84,451 ton 

Anode

150,000 ton 

Anode

7664393 Hydrogen Fluoride 2.736 5.650 3.872

 

0.050 1.939 0.049 N/A 5.137

 

0.891 N/A 3.578 5.884 N/A 2.513

- N/A = Not applicable, no emission unit at facility.

- Columbia Falls Aluminum Company is not in operation. Allowable emissions estimates (estimated to be equalt to 1.9 times estimated actual emissions) are provided above, actual and acute emissions were modeled as zero.
22

4. Discussion of Actual, Allowable, and Acute Emissions

Actual emission rates developed for this data set were based on facility aluminum or anode production 

capacities and available performance test data in units of lb/ton of aluminum or anode production, as 

appropriate. The resulting emission rates assume that the facilities operate at capacity. It should be noted 

that the Alcoa - Massena East production capacity was corrected to 2/3 of original production capacity 

based on new information provided by the company (one of the 3 potlines was permanently shut down 

in September of 2013). Also, Columbia Falls Aluminum was corrected to 4/5 of original production 

capacity based on actual operational data since 1999.

Allowable emission rates were developed by scaling the estimated actual emission rates by 1.5 for those 

pollutants subject to emissions standards. Acute emission rates for potlines (both stacks and roof vents) 

were developed for all pollutants by scaling estimated actual emission rates by 1.5. Acute emission rates 

for anode bake furnaces, anode paste plants, and pitch storage tanks were developed for all pollutants by 

scaling estimated actual emission rates by 2.

A summary of the multipliers used in this data set is shown in Table 23.

Table 23: Summary of Allowable and Acute Multipliers

HAP Metals

Polychlorinated 

Biphenyls

Polycyclic 

Aromatic 

Hydrocarbons

Dioxins and 

Furans

Hydrogen 

Fluoride

Carbonyl 

Sulfide

Allowable Emissions

Potline Stack = Actual = Actual = Actual x 1.5 = Actual = Actual x 1.5 = Actual

Potline Roof Vent = Actual = Actual = Actual x 1.5 = Actual = Actual x 1.5 N/A

Anode Bake Furnace = Actual = Actual = Actual x 1.5 = Actual = Actual x 1.5 N/A

Anode Paste Plant = Actual = Actual = Actual x 1.5 = Actual N/A N/A

Pitch Storage Tank N/A N/A = Actual x 1.5 N/A N/A N/A

Acute Emissions

Potline Stack = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 = Actual x 1.5

Potline Roof Vent = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 = Actual x 1.5 N/A

Anode Bake Furnace = Actual x 2 = Actual x 2 = Actual x 2 = Actual x 2 = Actual x 2 N/A

Anode Paste Plant = Actual x 2 = Actual x 2 = Actual x 2 = Actual x 2 N/A N/A

Pitch Storage Tank N/A N/A = Actual x 2 N/A N/A N/A

- Columbia Falls Aluminum Company is not in operation. Actual and acute emissions were modeled as zero. Allowable 

emissions were estimated at 1.9 times production based actual emission rate estimates.

III. Summary of Estimated Emissions from the Primary Aluminum Reduction Category

A summary of estimated actual emissions of selected HAP from emission release points in the primary 

aluminum reduction source category is given in Table 24. This table includes modeled estimated actual 

emissions, plus estimated actual emissions from Columbia Falls Aluminum Company, based on 

modeled allowable emissions adjusted for the appropriate allowable multiplier.

Commented [PD3]: Again, should be 3/5?
23

Table 24. Estimated Actual Emissions for Primary Aluminum Category (tons/year)

Nickel Arsenic Metal HAP POM COS D/F PCB

Emission Point

Potline Stacks 1.22 0.21 4.54 12.03 5,074 7.66E-07 7.66E-07

Potline Vents 19.10 5.59 51.44 33.01 -- 1.79E-05 6.13E-04

Bake Furnaces 0.01 0.004 0.11 11.31 -- 3.89E-08 1.12E-06

Paste Plants 0.003 0.001 0.02 3.21 -- 1.09E-09 1.91E-07

Pitch Storage Tanks -- -- -- 0.72 -- -- --

Total 20.33 5.80 56.12 60.27 5,074 1.87E-05 6.15E-04