Project Number: 189540 Emission Sources

- Maximum A llowable Emission Rates Permit Number 898 This table lists the maximum allowable emission rates and all sources of air contaminants on the applicant’s property covered by this permit. The emission rates shown are those derived from information submitted as part of the application for permit and are the maximum rates allowed for these facilities, sources, and related activities. Any proposed increase in emission rates may require an application for a modification of the facilities covered by this permit. Air Contaminants Data **Emission Point No.**

**(1) Source Name (2)**  **Air Contaminant Name (3)**  **Emission Rates**

**lbs/hour TPY (4)**  01, 02, 03, 04, 05, 06, 07, and 08 Railcar Unloading Baghouse Vents PM 1.65 7.21

PM 10 1.65 7.21 09 , 10, 11, 12, 13, 14, 15, and 16 Raw Material Silo Baghouse Vents PM 1.65 7.21

PM 10 1.65 7.21 17, 25, 34, 35, 39, 40, 41, 43, 44, 45, and 50 Cullet Hood Baghouse Vents PM 8.15 35.69

PM 10 8.15 35.69 18 Mix House Baghouse Vent PM 0.40 1.75

PM 10 0. 40 1.75 19 Batch Plant Dust Collector Stack PM 0.01 0.05

PM 10 0.01 0.05 20 Rouge/Coal Storage Baghouse Vent PM 0.21 0.90

PM 10 0.21 0.90 22 Melting Furnace No.1 Stack (9) PM 71.00 198.49

PM 10 71.00 135.31 VOC 1.16 5.08 NOx 739.00 894.25 CO 160.00 104.63 SO 2 80 180.27 23 Melting Furnace No.2 Stack (7) PM 71.00 291.90

PM 10 71.00 269.12Permit Number 898 Page 2 Emission Sources

- Maximum Allowable Emission Rates

Project Number: 189540 **Emission Point No.**

**(1) Source Name (2)**  **Air Contaminant Name (3)**  **Emission Rates**

**lbs/hour TPY (4)**  PM 2.5 71.00 252.63 VOC 1.16 5.08 NOx 739.00 2947.49 CO 160.00 154.83 SO 2 80 350.40 22 and 23 Melting Furnaces Nos. 1 and 2 Stacks (6) Cr 0.22 1.00

Se 45.00 31.00 Co 0.01 0.06 Si 19.00 82.00 Ni 0.02 0.10 Ce 9.00 40.00 Ti 2.00 8.80 FUG

- 1 Furnace Fugitives (5) PM 6.40 28.00

PM 10 6.40 28.00 NOx 31.00 136.00 CO 6.70 29.40 SO 2 3.40 15.00 Trace Metals 0.10 0.44 28 Solarcool Scrubber/SO 2 Exhaust

– Line 1 Stack PM 4.37 9.57

PM 10 4.37 9.57 CO 0.46 2.00 SO 2 (8) 23.00 75.00 Cr 0.08 0.35Permit Number 898 Page 3 Emission Sources

- Maximum Allowable Emission Rates

Project Number: 189540 **Emission Point No.**

**(1) Source Name (2)**  **Air Contaminant Name (3)**  **Emission Rates**

**lbs/hour TPY (4)**  Fe 0.50 2.20 C3H 8O 5.74 12.57 29 Solarcool Mix Room Baghouse Vent PM 0.60 2.63

PM 10 0.60 2.63 30, 31 Line 2 West and East Stacks SO 2 (8) 23.00 75.00 3 2 , 3 3 Line 1 West and East Stacks SO 2 (8) 23.00 75.00 36A, 36B, 37 Process W Line Nos. 1 and 2 Stacks PM 1.22 5.34

PM 10 1.22 5.34 38 Boilers 1, 2, and 3 Stack PM 1.48 6.48

PM 10 1.48 6.48 VOC 0.34 1.48 NOx 10.76 47.12 CO 5.17 22.64 SO 2 21.11 92.48 46, 47, 48, 49, 51, 52, 52A, 53, 54, and 54A Automatic Packing and Tempering Vacuum Transfer Vents PM 1.20 5.26

PM 10 1.20 5.26 55, 56, 57, 58, 59, 60, 61, 63, and 68 Storage Tank Vents for PetroleumDerived Materials VOC 3.35 0.18 FUG

- 2 Material Storage and Handling (5) PM 3.87 16.35

PM 10 1.87 7.96 SO 2 (8) 23.00 75.00 VOC 0.21 0.94 77 and 78 Tin Bath Vent Stack PM 0.10 0.35Permit Number 898 Page 4 Emission Sources

- Maximum Allowable Emission Rates

Project Number: 189540 **Emission Point No.**

**(1) Source Name (2)**  **Air Contaminant Name (3)**  **Emission Rates**

**lbs/hour TPY (4)**  PM 10 0.10 0.35 Sn <0.01 0.02 MSVD MSVD Vacuum Chamber VOC 0.11 0.50 TPO MSVD TPO Process PM 0.02 0.02 PM 10 0.02 0.02 VOC 0.20 0.17 BUFF MSVD Buff PM <0.01 <0.01 PM 10 <0.01 <0.01 (1) Emission point identification

- either specific equipment designation or emission point number from plot plan. (2) Specific point source name. For fugitive sources, use area name or fugitive source name. (3) VOC

- volatile organic compounds as defined in Title 30 Texas Administrative Code § 101.1 NOx - total oxides of nitrogen SO 2 - sulfur dioxide PM
- total particulate matter, suspended in the atmosphere, including PM 10 and PM 2.5, as

represented PM 10 - total particulate matter equal to or less than 10 microns in diameter, including PM 2.5, as

represented PM 2.5 - particulate matter equal to or less than 2.5 microns in diameter CO

- carbon monoxide Cr

- chromium Se

- selenium Co

- cobalt Si

- amorphous silica Ni

- nickel Ce

- cerium Ti

- titanium Fe
- iron Sn

- tin C3H 8O

- isopropyl alcohol (4) Compliance with annual emission limits (tons per year) is based on a 12 month rolling period. (5) Emission rate is an estimate and is enforceable through compliance with the applicable special condition(s) and permit application representations. (6) The emission rates shown for Cr, Co, Ni, Si, Se, Ce, and Ti represent total combined emissions for both Furnace Nos. 1 and 2. The individual emissions rate from each stack can vary such that the sum of the emissions from the stacks of Melting Furnace Nos. 1 and 2 shall not exceed the total amount authorized.Permit Number 898 Page 5 Emission Sources

- Maximum Allowable Emission Rates

Project Number: 189540 (7) The emissions have been represented and reviewed as the maximum emissions authorized by Air Quality Standard Permit for Pollution Control Project No. 103006. (8) The emission rates shown for SO 2 represent total combined emissions for EPNs 28 , 30, 31, 32, 33, and FUG

- 2. The individual emission rate from each stack can vary such that the sum of the emissions from EPNs 28, 30, 31, 32, 33, and FUG

- 2 shall not exceed the total amount authorized. (9 ) The emissions have been represented and reviewed as the maximum emissions authorized by Air Quality Standard Permit for Pollution Control Project No. 83132
.

Date: April 16, 2013