# Data Reported

Plant Sources Particulate Type Efficiency?

**Noranda, New Madrid**Potlines, bake furnaces PM Yes

**Alcoa-Intalco, Ferndale**Roof vents (controlled), potlines, bake furnaces PM Yes

**Alcoa, Rockdale** Potlines PM No **Alcoa, Massena-East** Soderberg potlines PM No

**Alcoa, Massena-West**Potlines, bake furnaces PM No

**Alcoa-Warrick** Potlines PM, PM10, PM2.5 No

**Alcoa-Tennessee** Potlines, bake furnaces PM10 No

**Rio Tinto Alcan** Potlines, bake furnace, paste plant PM, PM10, PM2.5 Yes
1) ESP = electrostatic precipitator; WS = wet scrubber; DAS = dry alumina scrubber; BH = baghouse; DCS = dry coke scubber 2) Alcoa Warrick has PM, PM10 and PM2.5 data. The PM2.5 data are as expected with respect to PM data (appears to be same test). But PM10 values are lower than PM2.5 values (possibly different test).

# Data Reported Data Summary

Concentration? Efficiency (%)

Yes ~99.7 for potlines; 88.2 for bake furnaces

No 80 for roof vent WS;

99 for potlines and bake furnaces

Yes, some None provided Yes None provided

Yes None provided

Yes None provided

Yes None provided

Yes 95 for A-398 (potlines); 100 for A-446 (bake furnace)
1) ESP = electrostatic precipitator; WS = wet scrubber; DAS = dry alumina scrubber; BH = baghouse; DCS = dry coke scubber 2) Alcoa Warrick has PM, PM10 and PM2.5 data. The PM2.5 data are as expected with respect to PM data (appears to be same test). But PM10 values are lower than PM2.5 values (possibly different test).

# Data Summary Concentration (mg/dscf) ~0.05 for potlines; 1.348 for bake furnaces

None provided None provided for ESP/WS; 648 for DAS/BH 0.0006 0.1125 for DAS; 0.084 for DCS; 0.065 for Bush Bailey DAS
Varies from 0.032 to 0.221 for PM (2).

0.006 for potlines (none provided for bake furnace) PM10 = 0.029 (potlines), 0.2 (bake furnace),

0.343 (paste plant)

2) Alcoa Warrick has PM, PM10 and PM2.5 data. The PM2.5 data are as expected with respect to PM data (appears to be same test). But PM10 values are lower than PM2.5 values (possibly different test).**Noranda, New Madrid**

Unit Description Collection Efficiency (%) Outlet

Concentration (mg/dscf)Collection

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Efficiency (%) Outlet Concentra tion**(lb**Collection

Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion Potline 1 99.7 0.047 0.008599.8 0.006 Potline 2 99.7 0.052 0.016 99.8 0.013 Potline 3 East 99.9 0.036 0.008 99.9 0.006 Potline 3 West (162) 99.6 0.065 0.01 99.9 0.006 Carbon Bake 1 88.2 1.348 0.034 99.8 0.014 98.8 0.06 Carbon Bake 2 88.2 1.348 0.034 99.8 0.014 98.8 0.06 Carbon Bake 3 88.2 1.348 0.034 99.8 0.014 98.8 0.06 Paste Plant Coke Scrubber

**Alcoa-Intalco, Ferndale**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion EU 22-49 80 80 80 80 80 80 80 EU 50-76 80 80 80 80 80 80 80 EU 77-102 80 80 80 80 80 80 80 EU 103-128 80 80 80 80 80 80 80 EU 129-154 80 80 80 80 80 80 80 EU 155-180 80 80 80 80 80 80 80 EU 181 99 99 99 99 99 99 99 EU 182 99 99 99 99 99 99 99 EU 183 99 99 99 99 99 99 99 EU 184 99 99 99 99 99 99 99 EU 185 99 99 99 99 99 99 99 EU 186 99 99 99 99 99 99 99 EU 187 99 99 99 99 99 99 99

**Alcoa, Rockdale**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion 10C1 Wet Scrubber 0.57 0.15 10C2 Wet Scrubber 0.57 0.15 10C3 Wet Scrubber 0.57 0.15 10C4 Wet Scrubber 0.57 0.15 10C5 Wet Scrubber 0.57 0.15 10C6 Wet Scrubber 0.57 0.15 10C7 Wet Scrubber 0.57 0.15 10C8 Wet Scrubber 0.57 0.15 10D1 Wet Scrubber 0.39 0.14 10D2 Wet Scrubber 0.39 0.14 10D3 Wet Scrubber 0.39 0.14 10D4 Wet Scrubber 0.39 0.14 10D5 Wet Scrubber 0.39 0.14 10D6 Wet Scrubber 0.39 0.14 10D7 Wet Scrubber 0.39 0.14 10D8 Wet Scrubber 0.39 0.14 10F1 Wet Scrubber 0.44 0.09 10F2 Wet Scrubber 0.44 0.09 10F3 Wet Scrubber 0.44 0.09 10F4 Wet Scrubber 0.44 0.09 10F5 Wet Scrubber 0.44 0.09 10F6 Wet Scrubber 0.44 0.09 10F7 Wet Scrubber 0.44 0.09 10F8 Wet Scrubber 0.44 0.09 COS

PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM COS PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM10F9 Wet Scrubber 0.44 0.09 10F10 Wet Scrubber 0.44 0.09 10F11 Wet Scrubber 0.44 0.09 10F12 Wet Scrubber 0.44 0.09 10E1 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E2 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E3 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E4 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E5 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E6 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E7 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E8 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10E9 Combination Dry Alumina Scrubber/Bag House 648 0.017 0.01 0 10G1 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G2 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G3 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G4 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G5 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G6 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G7 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G8 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G9 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G10 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G11 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10G12 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H1 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H2 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H3 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H4 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H5 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H6 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H7 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H8 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H9 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H10 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H11 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0 10H12 Combination Dry Alumina Scrubber/Bag House 648 0.04 0.02 0

**Alcoa, Massena-East**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion 77A01 Wet Scrubber 0.0006 0.0009 0.0136 0.112 77A02 Wet Scrubber 0.0006 0.0009 0.0136 0.112

**Alcoa, Massena-West**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion SA398 Dry Alumina Scrubber (A-398) 0.1125 0.0048 0.589 SS100 Procedair Dry Coke Scrubber 0.084 0.011 SS78S Bush Bailey Dry Alumina Scrubber 0.065 0.001 0.051

**Alcoa-Warrick**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion COS PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM COS

PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM COS PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POMPotline No. 2 A398 (1) one fluidized bed scrubber and baghouse system consisting of (12) twelve fluidized bed scrubbers and baghouses identified as Potline No. 2 A398 pollution control system (C1) with a total gas flow of 480,000 acfm at 200°F, and exhausting at stacks 160C1.1-1601.36. Secondary emissions are uncontrolled from the potline 2 and are exhausted at the roof monitors 103M.1 and 104M.1 0.055 0.030 0.054 99.940.006999.960.003 00.466

GTC system One (1) alumina injection and fabric filtration system, identified as the GTC system, with a total gas flow rate of 1,000,000 acfm at 170°F, and exhausting at the GTC stack. Secondary emissions are uncontrolled at potline #3 and 4 and are exhausted at the roof monitors 105M.1 and 106M.1 for line 3 and 107M.1 and 108M.1 for line 4 0.221 0.065 0.217 99.840.02399.860.011 00.449

Potline No. 5 A398 (1) one fluidized bed scrubber and baghouse system consisting of (12) twelve fluidized bed scrubbers and baghouses identified as Potline No. 5 A398 pollution control system (B5) with a total gas flow of 480,000 acfm at 200°F, and exhausting at stacks 161B5.1-161B5.36 Secondary emissions are uncontrolled from the potlines and are exhausted at the roof monitors 109M.1 and 110M.1 0.156 0.046 0.153 99.850.00999.870.004 0 0.49

Potline No. 6 A398 (1) one fluidized bed scrubber and baghouse system consisting of (12) twelve fluidized bed scrubbers and baghouses identified as Potline No. 6 A398 pollution control system (B6) with a total gas flow of 480,000 acfm at 200°F, and exhausting at stacks 161B61.1-161B6.36. Secondary emissions are uncontrolled from the potlines and are exhausted at the roof monitors 111M.1 and 112M.1 0.032 0.010 0.031 99.940.00999.950.004 00.455 Ring Furnace A-446 88.93 0.111 51.76 0.287 99.990.0001299.991.13E-0574.920.092

Pitch Fume Treatment Center Pitch Fume Treatment Center consisting of two dry coke scrubbers and two baghouses constructed in 1999 with a treatment capacity of 52.5 tons of green anode per hour, with an airflow rate of 70,000 acfm at 100 F exhausting at stack 254.13. The pitch fume treatment system has a minimum feed rate, as specified in the approved parametric monitoring plan of 3.6 tons per hour of calcined petroleum coke 99.94 0.093 95.85 0.102 0 0 0 0 19.880.082 0 0

**Alcoa-Tennessee**

Unit Description Collection Efficiency (%) Outlet

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Concentration (mg/dscf)Collection

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TNANOD0008 Anode Baking Furnace 0.003 0.067 TNPOT0045a Potline 1 North 0.006 0.114 TNPOT0045b Potline 1 South 0.006 0.114 TNPOT0048a Potline 2 North 0.006 0.266 TNPOT0048b Potline 2 South 0.006 0.266

**Rio Tinto Alcan**

Unit Description Collection Efficiency (%) Outlet

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Efficiency (%) Outlet Concentra tionCollection Efficiency (%) Outlet Concentra tion A-398 Fume control system-Line 1-161N 95 95 0.029 0.027 95 0.05 95 A-398 Fume control system-Line 1-161S 95 95 0.029 0.027 95 0.05 95 A-398 Fume control system-Line 2-161N 95 95 0.029 0.027 95 0.033 95 A-398 Fume control system-Line 2-162S 95 95 0.029 0.027 95 0.033 95 A-398 Fume control system-Line 3-163N 95 95 0.029 0.027 95 0.082 95 A-398 Fume control system-Line 3-163S 95 95 0.029 0.027 95 0.082 95 A-446 Fume control system (bake furnace) 100 0.2 0.198 100 <0.001 100 100 0.089 Paste Production Fume control system-Procedair 0.343 0.111 90 PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM PM PM10 PM2.5 Total Fluorides Hydrogen Fluorides POM COS