1

MEMORANDUM

DATE: April 21, 2015

SUBJECT: Revised Development of the Risk and Technology Review (RTR) Emissions 

Dataset for the Ferroalloys Production Source Category for the 2015

Final Rule

FROM: Bradley Nelson, EC/R, Inc.

TO: Phil Mulrine, EPA OAQPS/SPPD/MMG

1.0 PURPOSE

The purpose of this memorandum is to document the methodologies used to estimate pollutant 

emissions from processes at two ferroalloy facilities; Eramet Marietta Inc. (Eramet) and Felman 

Production (Felman). The emission estimates developed in this task were used to create a database 

that will be used as input to the risk assessment modeling to estimate the risks due to emissions 

from these facilities as part of the “risk and technology” (RTR) review for the Ferroalloy 

Production source category. This analysis supplements the original and revised RTR analyses1,2

that supported proposed amendments to the national emission standards for hazardous air pollutants 

(NESHAP) for the ferroalloys production source category published in the Federal Register on 

November 23, 2011 (76 FR 72508) and supplemental proposed amendments published in the 

Federal Register on October 10, 2014 (79 FR 60238).

Emissions data have been re-calculated incorporating newly provided test data3,4,5 received prior to 

and after the publication of the 2014 supplemental proposal. The three test reports are available in 

the docket for this action (EPA-HQ-OAR-2010-0895). Two test reports provide HAP data for 

polycyclic aromatic hydrocarbons (PAH) and mercury (Hg) from each of the operational furnaces;

 1 Memorandum from Bradley Nelson, EC/R, Inc. to Conrad Chin, EPA OAQPS/SPPD/MMG, Draft Development of 

the RTR Emissions Dataset for the Ferroalloys Production Source Category, October 14, 2011. EPA-HQ-OAR-2010-

0895-0040 2 Memorandum from Bradley Nelson, EC/R, Inc. to Phil Mulrine, EPA OAQPS/SPPD/MMG, Revised Development of 

the Risk and Technology Review (RTR) Emissions Dataset for the Ferroalloys Production Source Category for the 

2014 Supplemental Proposal. EPA-HQ-OAR-2010-0895-0174 3 Emission Measurement Summary Report Furnace No. 12 Scrubber PAHs and Mercury Eramet Marietta Inc. Marietta, 

OH, January 2013. 4 Polycyclic Aromatic Hydrocarbons and Mercury Emission Summary Report EAF No. 12 Scrubber EAF No. 1 

Baghouse Eramet Marietta Inc. Marietta, OH, November 2014. 5 Emission Measurement Summary Report Filterable Particulate Matter Furnaces 1 and 12 Eramet Marietta, Inc. 

Marietta, Ohio, April 2014.
one furnace producing Ferromanganese (FeMn) and the other producing Silicomanganese (SiMN).

The other test report provided particulate matter (PM) test data for each of the two furnaces and the 

tapping baghouse. 

Other than incorporating these additonal data sets, the methodology of these analyses are 

unchanged from those described in the previous data set development memo2, except as detailed 

here. Background information, facility summaries, summaries of the point source pollutant 

emission data sets, and the methodologies for preparation of the emission data sets and the 

modeling database are unchanged from the previous memorandum, and are not included here. 

 

2.0 REVISIONS TO THE FERROALLOYS RTR EMISSION ESTIMATES

This section details revisions to the RTR emissions dataset for the Ferroalloys NESHAP for the 

2015 Final Rule. Other details of the methodology used for developing the emission estimates are 

unchanged, and are detailed in Revised Development of the Risk and Technology Review (RTR) 

Emissions Dataset for the Ferroalloys Production Source Category for the 2014 Supplemental 

Proposal, which is in the docket.

2.1 Furnace Tapping/Casting Fugitive Emission Factors

Table 2-1 details the revised organic HAP emission factors for tapping and casting operations at 

Ferroalloys Production Facilities. These factors have been updated to incorporate additional test 

data including PM emissions from the tapping baghouse on furnace 1 at Eramet. 

2.2 Estimated PAH Emissions 

The PAH emissions from the furnaces vary depending on the product (e.g., FeMn, SiMn) being 

produced in the furnace. Table 2-2 details the estimated PAH emissions for SiMn production 

operations at Eramet's furnace 1. For Furnace 12, the PAH data set includes two tests during SiMn 

production and two tests during FeMn production. However, the Furnace 1 PAH data set only 

includes two tests conducted during FeMn and no test data during SiMn production. To address this 

issue, the test data from Furnace 12 during SiMn production were used to estimate the PAH 

emissions from Furnace 1 during SiMn production. The PAH emissions estimate was prepared by 

applying the average measured exhaust flow rate from Furnace 1 to the average PAH compound

concentrations of the two available PAH test runs performed on Furnace 12 during SiMn 

production. 
Organic HAP Pollutant

Furnace 1 Tapping 

Baghouse Emissions 

(Tons/yr) Tapping EF (lb/Ton) Casting EF (lb/Ton)

Naphthalene 1.34E-02 3.12E-03 4.57E-04

2-Methylnaphthalene 8.11E-03 1.89E-03 2.77E-04

Acenaphthylene 6.55E-03 1.53E-03 2.23E-04

Acenaphthene 3.18E-03 7.42E-04 1.08E-04

Fluorene 3.66E-03 8.53E-04 1.25E-04

Phenanthrene 1.24E-02 2.90E-03 4.23E-04

Anthracene 2.44E-03 5.70E-04 8.33E-05

Fluoranthene 2.42E-03 5.64E-04 8.24E-05

Pyrene 1.87E-03 4.35E-04 6.36E-05

Benzo(a)anthracene 2.01E-04 4.70E-05 6.87E-06

Chrysene 3.42E-04 7.97E-05 1.16E-05

Benzo(b)fluoranthene 1.66E-04 3.88E-05 5.67E-06

Benzo(k)fluoranthene 8.32E-05 1.94E-05 2.84E-06

Benzo(e)pyrene 2.19E-04 5.11E-05 7.47E-06

Benzo(a)pyrene 6.13E-05 1.43E-05 2.09E-06

Perylene 8.76E-06 2.04E-06 2.99E-07

Indeno(1,2,3-cd)pyrene 3.94E-05 9.20E-06 1.34E-06

Dibenz(a,h)anthracene 1.31E-05 3.07E-06 4.48E-07

Benzo(g,h,i)perylene 9.20E-05 2.15E-05 3.14E-06

Formaldehyde 3.81E-02 8.89E-03 1.30E-03

2,3,7,8-Tetrachlorodibenzo-p-dioxin 6.18E-10 1.44E-10 Not measured

1,2,3,7,8-Pentachlorodibenzo-dioxin 8.45E-10 1.97E-10 Not measured

1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin 5.74E-10 1.34E-10 Not measured

1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin 5.56E-10 1.30E-10 Not measured

1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin 5.65E-10 1.32E-10 Not measured

1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin 1.05E-09 2.45E-10 Not measured

1,2,3,4,6,7,8,9-Octochlorodibenzo-p-dioxin 8.72E-09 2.03E-09 Not measured

2,3,7,8-Tetrachlorodibenzofuran 9.02E-10 2.10E-10 Not measured

1,2,3,7,8-Pentachlorodibenzofuran 6.79E-10 1.58E-10 Not measured

2,3,4,7,8-Pentachlorodibenzofuran 1.07E-09 2.50E-10 Not measured

1,2,3,4,7,8-Hexachlorodibenzofuran 6.75E-10 1.57E-10 Not measured

1,2,3,6,7,8-Hexachlorodibenzofuran 5.21E-10 1.22E-10 Not measured

2,3,4,6,7,8-Hexachlorodibenzofuran 7.84E-10 1.83E-10 Not measured

1,2,3,7,8,9-Hexachlorodibenzofuran 6.18E-10 1.44E-10 Not measured

1,2,3,4,6,7,8-Heptachlorodibenzofuran 1.53E-09 3.58E-10 Not measured

1,2,3,4,7,8,9-Heptachlorodibenzofuran 5.74E-10 1.34E-10 Not measured

1,2,3,4,6,7,8,9-Octochlorodibenzofuran 1.54E-09 3.59E-10 Not measured

Polychlorinated biphenyls 2.14E-07 4.99E-08 Not measured

Particulate Matter 5.573 ---- ----

Table 2-1. Summary of Organic HAP Fugitive Emission Factors for Tapping and Casting at 

Ferroalloys Production Facilities
Analyte Sample Location Test Method

3/2013 

Average Conc. 

(ng/dscm)

10/2014 

Average Conc. 

(ng/dscm)

Estimated 

Furnace 1 

SiMn Emissions 

(lb/hr)

Naphthalene Furnace 12 Scrubber Outlet Method 429 24917.52449 20898.81814 0.016195161

2-Methylnaphthalene Furnace 12 Scrubber Outlet Method 429 6910.247135 9178.59713 0.005687085

Acenaphthylene Furnace 12 Scrubber Outlet Method 429 11135.58498 7056.797866 0.006430644

Acenaphthene Furnace 12 Scrubber Outlet Method 429 2696.431674 1130.553322 0.001352763

Fluorene Furnace 12 Scrubber Outlet Method 429 4863.840908 1693.569789 0.002317914

Phenanthrene Furnace 12 Scrubber Outlet Method 429 21121.01222 24446.92278 0.016107354

Anthracene Furnace 12 Scrubber Outlet Method 429 4633.299938 4913.082339 0.003374455

Fluoranthene Furnace 12 Scrubber Outlet Method 429 8431.574849 19415.62153 0.009843427

Pyrene Furnace 12 Scrubber Outlet Method 429 7485.177564 14119.82305 0.007636936

Benzo[a]anthracene Furnace 12 Scrubber Outlet Method 429 548.0304205 2027.372445 0.000910353

Chrysene/Triphenylene Furnace 12 Scrubber Outlet Method 429 1029.928833 5888.058388 0.00244537

Benzo[b]fluoranthene Furnace 12 Scrubber Outlet Method 429 576.1573623 2825.220646 0.001202319

Benzo[k]fluoranthene Furnace 12 Scrubber Outlet Method 429 411.9237825 1201.7577 0.000570404

Benzo[e]pyrene Furnace 12 Scrubber Outlet Method 429 530.5575928 1394.14706 0.000680345

Benzo[a]pyrene Furnace 12 Scrubber Outlet Method 429 97.66683579 355.2325051 0.000160091

Perylene Furnace 12 Scrubber Outlet Method 429 10.40099167 56.933731 2.38015E-05

Indeno[1,2,3-cd]pyrene Furnace 12 Scrubber Outlet Method 429 126.7502101 589.9306572 0.000253332

Dibenz[a,h]anthracene Furnace 12 Scrubber Outlet Method 429 39.84141569 136.9871665 6.25054E-05

Benzo[g,h,i]perylene Furnace 12 Scrubber Outlet Method 429 217.8284527 433.8066357 0.00023034

Table 2-2. Summary of Estimated PAH Emissions for Eramet Furnace 1a

a An average flow rate of 5344.5 dry standard cubic meters per minute (dscmm) was used to 

estimate the individual PAH emissions during SiMn production.

2.3 Revised Baseline Annual HAP Emissions for the Ferroalloy Production Facilities

The revised baseline annual HAP emissions were calculated for each of the previously described 

emission points and are summarized in Table 2-3. These emissions have been updated to 

incorporate the additional test data received and other revisions addressed in this memo, but the 

methodology and assumptions used for their preparation are otherwise identical to previous 

estimates.

2.4 Revised Enhanced Capture Annual HAP Emissions for the Ferroalloy Production 

Facilities

As described in previous memos, for purposes of the supplemental analysis, an enhanced capture 

control option was developed to evaluate residual risk. A summary of the revised enhanced capture 

emissions for Eramet and Felman is provided in Table 2-4. These emissions have been updated to 

incorporate the additional test data received and other revisions addressed in this memo, but the 

methodology and assumptions used for their preparation are otherwise identical to previous 

estimates.
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Table 2-3. Revised Summary of the Baseline Facility Process Annual HAP Emissions (Tons/year) 

for the Ferroalloy Production Industry

Unit Description Arsenic Cadmium

Chromium 

(III)

Chromium 

(VI) Lead Manganese Mercury Nickel

Hydrogen 

Chloride Total PAH

FormaldehydeTotal 

CDD/CDF Total PCBs Total HAP

Eramet Marietta

Furnace #1 Baghouse Outlet 0.000399 0.00231 0.000661 0.000259 0.0222 1.33 0.119 0.00316 0.661 6.02 0.338 3.35E-08 5.20E-07 8.50

Furnace #1 Fugitives 0.000374 0.00217 0.000620 0.000243 0.0208 1.25 0.00263 0.00296 0.620 5.65 0.317 3.14E-08 4.88E-07 7.87

Furnace #1 Tapping Baghouse 0.000105 0.0000482 0.000770 0.000163 0.0108 0.325 0.0000526 0.00125 0.180 0.0553 0.0381 2.18E-08 2.14E-07 0.611

Furnace #1 Tapping Fugitives 0.00266 0.0154 0.00440 0.00173 0.148 24.3 0.000319 0.0211 4.40 0.587 0.405 2.32E-07 2.27E-06 29.9

Furnace #12 Scrubber Outlet 0.00353 0.0283 0.00158 0.00120 0.106 6.88 0.0829 0.00234 0.545 5.78 0.145 8.48E-08 3.63E-07 13.6

Furnace #12 Fugitives 0.000662 0.00531 0.000297 0.000225 0.0198 1.29 0.00183 0.000439 0.102 1.09 0.0272 1.59E-08 6.81E-08 2.53

Furnace #12 Tapping Fugitives 0.00427 0.0343 0.00192 0.00145 0.128 20.4 0.000268 0.00283 0.660 0.514 0.354 2.03E-07 1.99E-06 22.1

MOR Process Baghouse Outlet 0.00110 0.00198 0.00426 0.0000840 0.000933 0.982 0.00212 0.00147 0.0382 0.405 0.0101 NM NM 1.45

MOR Process Fugitives 0.00486 0.00876 0.0188 0.000372 0.00413 5.22 0.0000686 0.00649 0.169 0.126 0.0871 NM NM 5.65

Furnace #1 Casting 0.000485 0.00282 0.00080 0.000316 0.0270 4.44 0.0000583 0.00385 0.805 0.107 0.0740 NM NM 5.46

Furnace #12 Casting 0.000892 0.00716 0.000400 0.000304 0.0267 4.27 0.0000560 0.000591 0.138 0.103 0.0712 NM NM 4.61

MOR casting 0.00486 0.00876 0.0188 0.000372 0.00413 5.22 0.0000686 0.00649 0.169 0.126 0.0871 NM NM 5.65

C2P Crushing/Sizing Baghouse #1 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P Crushing/Sizing Baghouse #2 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P Crushing/Sizing Baghouse #3 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P crushing and sizing fugitives 0.000567 NM 0.00554 0.000452 0.000603 6.35 NM 0.00646 NM NM NM NM NM 6.37

Fugitive Emissions Total 0.0196 0.0847 0.0516 0.00547 0.379 72.7 0.00530 0.0512 7.07 8.30 1.42 4.82E-07 4.82E-06 90.1

Eramet Marietta Total 0.0252 0.117 0.0628 0.00749 0.519 86.7 0.210 0.0639 8.49 20.6 1.95 6.22E-07 5.91E-06 119

Felman Production

Furnace No. 2 Baghouse Outlet 0.00277 0.000311 0.01052 0.00155 0.181 1.26 0.01074 0.0820 3.48 0.342 0.331 4.12E-07 3.53E-05 5.70

Furnace No. 2 Fugitives 0.00260 0.000292 0.00988 0.00146 0.170 1.18 0.000237 0.0770 3.27 0.321 0.311 3.87E-07 3.31E-05 5.34

Furnace No. 2 Tapping Fugitives 0.00329 0.000369 0.01250 0.00184 0.215 3.97 0.000023 0.0974 4.14 0.171 0.118 6.76E-08 6.62E-07 8.73

Furnace No. 5 Baghouse Outlet 0.000710 0.000175 0.0089 0.00141 0.0173 0.773 0.00219 0.00461 0.351 0.321 0.309 6.41E-07 4.85E-05 1.79

Furnace No. 5 Fugitives 0.000666 0.000164 0.00833 0.00132 0.0163 0.725 0.0000484 0.00433 0.330 0.302 0.290 6.02E-07 4.55E-05 1.68

Furnace No. 5 Tapping Fugitives 0.000459 0.000113 0.00574 0.000913 0.0112 1.96 0.0000115 0.00298 0.227 0.085 0.058 3.34E-08 3.28E-07 2.36

Furnace No. 7 Baghouse Outlet 0.00117 0.000288 0.0146 0.00232 0.0285 2.48 0.00446 0.00759 0.857 0.269 0.611 6.41E-07 4.85E-05 4.28

Furnace No. 7 Fugitives 0.00110 0.000271 0.0137 0.00218 0.0268 2.33 0.000098 0.00713 0.804 0.253 0.573 6.02E-07 4.55E-05 4.01

Furnace No. 7 Tapping Fugitives 0.000459 0.000113 0.00574 0.000913 0.0112 1.96 0.0000115 0.00298 0.337 0.085 0.058 3.34E-08 3.28E-07 2.47

Furnace No. 2 Casting 0.000961 0.0001080 0.00365 0.000539 0.0629 1.160 0.0000068 0.0285 1.21 0.0500 0.0345 NM NM 2.55

Furnace No. 5 Casting 0.000134 0.0000331 0.00168 0.000267 0.00328 0.574 0.0000034 0.000872 0.0664 0.0248 0.0171 NM NM 0.689

Furnace No. 7 Casting 0.000134 0.0000331 0.00168 0.000267 0.00328 0.574 0.0000034 0.000872 0.0985 0.0248 0.0171 NM NM 0.721

Crushing/Screening System #1 0 NM 0 0 0 0 NM 0 NM NM NM NM NM 0.00

Crushing/Screening System #2 0 NM 0.000179 0.0000265 0.000463 0.210 NM 0 NM NM NM NM NM 0.211

Crushing/Screening #1 Fugitives 0 NM 0 0 0 0 NM 0 NM NM NM NM NM 0.00

Crushing/Screening #2 Fugitives 0 NM 0.00399 0.000589 0.0103 3.25 NM 0 NM NM NM NM NM 3.27

Fugitive Emissions Total 0.00980 0.00150 0.0669 0.0103 0.531 17.7 0.000443 0.222 10.5 1.31 1.48 1.73E-06 1.25E-04 31.8

Felman Production Total 0.0144 0.00227 0.1011 0.0156 0.758 22.4 0.0178 0.316 15.2 2.25 2.73 3.42E-06 2.58E-04 43.8
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Table 2-4. Revised Summary of the Enhanced Capture Ferroalloys Production Facility Annual HAP Emissions (Tons/year) 

Unit Description Arsenic Cadmium

Chromium 

(III)

Chromium 

(VI) Lead Manganese Mercury Nickel

Hydrogen 

Chloride Total PAH

FormaldehydeTotal 

CDD/CDF Total PCBs Total HAP

Eramet Marietta

Furnace #1 Baghouse Outlet 0.000554 0.00265 0.00151 0.000454 0.0357 2.11 0.1194 0.00481 4.97 6.35 0.76 1.64E-07 1.80E-06 14.4

Furnace #1 Fugitives 0.000374 0.00217 0.000620 0.000243 0.0208 1.25 0.00263 0.00296 0.620 5.65 0.317 3.14E-08 4.88E-07 7.87

Furnace #1 Casting Baghouse 0.0000092 0.0000535 0.0000153 0.00000600 0.000513 0.0843 0.000047 0.0000731 0.764 0.051 0.070 0.00E+00 0.00E+00 0.97

Furnace #1 Tapping Fugitives 0.000166 0.00096 0.000275 0.000108 0.0092 1.52 0.0000199 0.00132 0.275 0.0367 0.0253 1.45E-08 1.42E-07 1.87

Furnace #12 Scrubber Outlet 0.00324 0.0260 0.00145 0.00110 0.0973 6.33 0.0763 0.00215 0.501 5.320 0.133 7.80E-08 3.34E-07 12.49

Furnace #12 Fugitives 0.000662 0.00531 0.000297 0.000225 0.0198 1.29 0.00183 0.000439 0.102 1.086 0.0272 1.59E-08 6.81E-08 2.53

Furnace #12 Tapping Fugitives 0.000305 0.00245 0.000137 0.000104 0.00915 1.46 0.0000192 0.000202 0.0472 0.0367 0.0253 1.45E-08 1.42E-07 1.58

MOR Process Baghouse Outlet 0.00123 0.00221 0.00476 0.0000939 0.00104 1.12 0.00219 0.00164 0.263 0.489 0.126 NM NM 2.01

MOR Process Fugitives 0.000405 0.000730 0.00157 0.0000310 0.000344 0.435 0.0000057 0.000541 0.0141 0.0105 0.0073 NM NM 0.471

Furnace #1 Casting 0.0000243 0.000141 0.0000402 0.0000158 0.00135 0.222 0.00000291 0.000192 0.0402 0.0054 0.00370 NM NM 0.273

Furnace #12 Casting 0.0000446 0.000358 0.0000200 0.0000152 0.00134 0.213 0.00000280 0.0000296 0.00690 0.0052 0.00356 NM NM 0.231

MOR casting 0.000405 0.000730 0.00157 0.0000310 0.000344 0.435 0.0000057 0.000541 0.0141 0.0105 0.0073 NM NM 0.471

C2P Crushing/Sizing Baghouse #1 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P Crushing/Sizing Baghouse #2 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P Crushing/Sizing Baghouse #3 0.000133 NM 0.00130 0.000106 0.000141 1.49 NM 0.00151 NM NM NM NM NM 1.49

C2P crushing and sizing fugitives 0.000567 NM 0.00554 0.000452 0.000603 6.35 NM 0.00646 NM NM NM NM NM 6.37

Furnace #12 Tap/Cast Baghouse 0.0000963 0.000773 0.0000432 0.0000328 0.00289 0.460 0.005895 0.0000638 0.744 0.288 0.397 9.42E-08 9.23E-07 1.90

MOR Secondary Baghouse 0.0000486 0.0000876 0.000188 0.00000372 0.0000413 0.0522 0.0000292 0.0000649 0.0844 0.0316 0.044 NM NM 0.212

Fugitive Emissions Total 0.00295 0.0129 0.0101 0.00123 0.0630 13.2 0.00452 0.0127 1.12 6.84 0.416 7.63E-08 8.40E-07 21.7

Eramet Marietta Total 0.00853 0.0447 0.0219 0.00324 0.201 27.8 0.208 0.0260 8.45 19.38 1.94 4.13E-07 3.90E-06 58.1

Felman Production

Furnace No. 2 Baghouse Outlet 0.00283 0.000318 0.01075 0.00159 0.185 1.31 0.0108 0.0838 7.31 0.467 0.549 5.20E-07 4.37E-05 9.9

Furnace No. 2 Fugitives 0.000325 0.0000365 0.001235 0.000182 0.0213 0.147 0.0000296 0.00963 0.409 0.0401 0.0388 4.83E-08 4.14E-06 0.668

Furnace No. 2 Tapping Fugitives 0.000548 0.0000616 0.00208 0.000307 0.0359 0.661 0.0000039 0.0162 0.690 0.0285 0.0197 1.13E-08 1.10E-07 1.45

Furnace No. 5 Baghouse Outlet 0.000721 0.000178 0.00902 0.00143 0.0176 0.801 0.00222 0.00469 0.636 0.419 0.485 7.98E-07 5.99E-05 2.38

Furnace No. 5 Fugitives 0.0000833 0.0000206 0.00104 0.000166 0.00203 0.0907 0.00000605 0.000541 0.0412 0.0377 0.0363 7.53E-08 5.69E-06 0.210

Furnace No. 5 Tapping Fugitives 0.0000765 0.0000189 0.000957 0.000152 0.00187 0.327 0.00000191 0.000497 0.0379 0.0141 0.0097 5.57E-09 5.46E-08 0.393

Furnace No. 7 Baghouse Outlet 0.00118 0.000292 0.0148 0.00235 0.0289 2.53 0.00451 0.00769 1.44 0.354 0.928 7.98E-07 5.99E-05 5.31

Furnace No. 7 Fugitives 0.000137 0.0000338 0.00171 0.000273 0.00335 0.291 0.0000123 0.000891 0.101 0.0316 0.0717 7.53E-08 5.69E-06 0.502

Furnace No. 7 Tapping Fugitives 0.0000765 0.0000189 0.000957 0.000152 0.00187 0.327 0.00000191 0.000497 0.0561 0.0141 0.0097 5.57E-09 5.46E-08 0.411

Furnace No. 2 Casting 0.0000801 0.00000900 0.000304 0.0000449 0.00524 0.0967 0.00000056 0.00237 0.101 0.00417 0.00288 NM NM 0.213

Furnace No. 5 Casting 0.0000112 0.00000276 0.000140 0.0000222 0.000273 0.0479 0.00000028 0.0000727 0.00554 0.00206 0.00142 NM NM 0.0574

Furnace No. 7 Casting 0.0000112 0.00000276 0.000140 0.0000222 0.000273 0.0479 0.00000028 0.0000727 0.00821 0.00206 0.00142 NM NM 0.0601

Crushing/Screening System #1 0 NM 0 0 0 0 NM 0 NM NM NM NM NM 0.00

Crushing/Screening System #2 0 NM 0.000179 0.0000265 0.000463 0.210 NM 0 NM NM NM NM NM 0.211

Crushing/Screening #1 Fugitives 0 NM 0 0 0 0 NM 0 NM NM NM NM NM 0.00

Crushing/Screening #2 Fugitives 0 NM 0.000997 0.000147 0.00258 0.813 NM 0 NM NM NM NM NM 0.817

Secondary Crushing Baghouse 0 NM 0.0000598 0.0000088 0.000155 0.0488 NM 0 NM NM NM NM NM 0.0490

Secondary Furnace Baghouse 0.0000809 0.0000123 0.000514 0.0000793 0.00432 0.122 0.000145 0.00185 4.35 0.262 0.575 3.32E-07 2.36E-05 5.31

Fugitive Emissions Total 0.00135 0.000205 0.00957 0.00147 0.0746 2.85 0.0000568 0.0308 1.45 0.174 0.192 2.21E-07 1.57E-05 4.78

Felman Production Total 0.00616 0.00101 0.0449 0.00696 0.311 7.87 0.0178 0.129 15.2 1.68 2.73 2.67E-06 2.03E-04 28.0