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NOTE: Draft determinations are marked with a " * " beside the RBLC ID. Required fields are denoted by "+".

Report Date: 02/28/2014            Control Technology Determinations (Freeform)
Facility Information: DRY FORK STATION

RBLC ID: WY-0064

+ Corporate/Company Name: BASIN ELECTRIC POWER COOPERATIVE

+ Facility Name: DRY FORK STATION Facility State: WY

+ Permit Number: CT-4631 Application Accepted Received Date: 08/18/2006 ACT Permit Issuance Date: 10/15/2007 ACT Date determination entered in RBLC: 02/19/2008 Date determination last updated: 04/20/2009 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: ONE PC BOILER RATED A 385 MW (NET) Permit Notes:

Process Information: DRY FORK STATION

+ Process Name: PC BOILER (ES1-01)

+ Process Type: 11.110 Primary Fuel: COAL Throughput: Throughput Unit: Process Notes:

Pollutant Information: DRY FORK STATION - PC BOILER (ES1-01)

+ Pollutant Name Ammonia (NH3) Emission Limit 1: 10.0000 Emission Limit 1 Unit: PPMV Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 19.6000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: Other Case-by-Case+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements:

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.0500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 12 MONTH ROLLING Emission Limit 2: 190.1000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 30-DAY ROLLING

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS , MACT

+ Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.0700 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 12 MONTH ROLLING Emission Limit 2: 285.1000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 30-DAY ROLLING

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS , OTHER

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0120 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 45.6000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.1500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUALEmission Limit 2: 570.2000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 30-DAY ROLLING

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Volatile Organic Compounds (VOC) Emission Limit 1: 0.0037 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 14.1000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Mercury Emission Limit 1: 0.0001 Emission Limit 1 Unit: LB/MW-H Emission Limit 1 Avg. Time/Condition: 12 MONTH ROLLING Emission Limit 2: 0.1600 Emission Limit 2 Unit: T/YR Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS

+ Pollutant Name Sulfuric Acid (mist, vapors, etc) Emission Limit 1: 0.0025 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 9.5000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Hydrogen FluorideEmission Limit 1: 2.6200 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 11.5000 Emission Limit 2 Unit: T/YR Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

Process Information: DRY FORK STATION

+ Process Name: AUXILIARY BOILER (ES1-02)

+ Process Type: 11.300 Primary Fuel: NATURAL GAS Throughput: 134.00 Throughput Unit: MMBTU/H Process Notes:

Pollutant Information: DRY FORK STATION - AUXILIARY BOILER (ES1-02)

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.0400 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 5.4000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements:

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.0800 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 10.7000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: Other Case-by-Case Other ApplicableOther Applicable Requirements:

Process Information: DRY FORK STATION

+ Process Name: INLET GAS HEATER (ES1-06)

+ Process Type: 11.300 Primary Fuel: NATURAL GAS Throughput: 8.36 Throughput Unit: MMBTU/H Process Notes:

Pollutant Information: DRY FORK STATION - INLET GAS HEATER (ES1-06)

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.1000 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0.8000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements:

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.0800 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0.7000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: ANNUAL

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements:

Process Information: DRY FORK STATION

+ Process Name: DIESEL-FIRED EMERGENCY GENERATOR

+ Process Type: 11.200 Primary Fuel: DIESEL Throughput: 2377.00Throughput Unit: HP Process Notes:

Pollutant Information: DRY FORK STATION - DIESEL-FIRED EMERGENCY GENERATOR

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 4.8000 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACT

+ Pollutant Name Carbon Monoxide Emission Limit 1: 2.6000 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACT

+ Pollutant Name Particulate Matter (PM) Emission Limit 1: 0.1500 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACT

Process Information: DRY FORK STATION

+ Process Name: DIESEL-FIRED FIRE PUMP ENGINE+ Process Type: 11.200 Primary Fuel: DIESEL Throughput: 360.00 Throughput Unit: HP Process Notes:

Pollutant Information: DRY FORK STATION - DIESEL-FIRED FIRE PUMP ENGINE

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 4.8000 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACT

+ Pollutant Name Carbon Monoxide Emission Limit 1: 2.6000 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACT

+ Pollutant Name Particulate Matter (PM) Emission Limit 1: 0.1500 Emission Limit 1 Unit: G/HP-H Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: MACTProcess Information: DRY FORK STATION

+ Process Name: COOLING TOWERS

+ Process Type: 99.999 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: DRY FORK STATION - COOLING TOWERS

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0050 Emission Limit 1 Unit: % Emission Limit 1 Avg. Time/Condition: DRIFT LOSS Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

Process Information: DRY FORK STATION

+ Process Name: MATERIAL HANDLING SOURCES (COAL PREP)

+ Process Type: 99.100 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: DRY FORK STATION - MATERIAL HANDLING SOURCES (COAL PREP)

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0050 Emission Limit 1 Unit: G/DSCF Emission Limit 1 Avg. Time/Condition: ANNUAL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-CaseOther Applicable Requirements:

Process Information: DRY FORK STATION

+ Process Name: HAUL ROADS

+ Process Type: 99.150 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: DRY FORK STATION - HAUL ROADS

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0 Emission Limit 1 Unit: Emission Limit 1 Avg. Time/Condition: SEE NOTE Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case Other Applicable Requirements: OPERATING PERMIT

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NOTE: Draft determinations are marked with a " * " beside the RBLC ID. Required fields are denoted by "+".

Report Date: 02/28/2014            Control Technology Determinations (Freeform)
Facility Information: WYGEN 3

RBLC ID: WY-0063

+ Corporate/Company Name: BLACK HILLS CORPORATION

+ Facility Name: WYGEN 3 Facility State: WY

+ Permit Number: CT-4517 Application Accepted Received Date: Permit Issuance Date: 02/05/2007 ACT Date determination entered in RBLC: 05/24/2007 Date determination lastDate determination last updated: 04/22/2008 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: 100 MW PULVERIZED COAL FIRED ELECTRIC UTILITY Permit Notes:

Process Information: WYGEN 3

+ Process Name: PC BOILER

+ Process Type: 11.110 Primary Fuel: SUBBITUMINOUS COAL Throughput: 1300.00 Throughput Unit: MMBTU/H Process Notes:

Pollutant Information: WYGEN 3 - PC BOILER

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.0500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 12 MONTH ROLLING Emission Limit 2: 65.0000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 30 DAY ROLLING

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS

+ Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.0900 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 12 MONTH ROLLING Emission Limit 2: 117.0000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 30 DAY ROLLING

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS

+ Pollutant Name Particulate matter, filterable (FPM) Emission Limit 1: 0.0120 Emission Limit 1 Unit: LB/MMBTUEmission Limit 1 Avg. Time/Condition: 3 X 120 MINUTE TEST Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.1500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3 X 1-HOUR TESTS Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

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NOTE: Draft determinations are marked with a " * " beside the RBLC ID. Required fields are denoted by "+".

Report Date: 02/28/2014            Control Technology Determinations (Freeform)
Facility Information: TS POWER PLANT

RBLC ID: NV-0036

+ Corporate/Company Name: NEWMONT NEVADA ENERGY INVESTMENT, LLC

+ Facility Name: TS POWER PLANT Facility State: NV

+ Permit Number: AP4911-1349 Application Accepted Received Date: 10/28/2004 ACT Permit Issuance Date: 05/05/2005 ACT Date determination entered in RBLC: 10/20/2005 Date determination last updated: 08/31/2006 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: 200 MW PC COAL FIRED ELECTRICAL GENERATION UNIT Permit Notes: APPEALED TO EAB; EAB DENIED REVIEW ON DECEMBER 21,Permit Notes: APPEALED TO EAB; EAB DENIED REVIEW ON DECEMBER 21, 2005. PERMIT BECAME EFFECTIVE ON DECEMBER 21, 2005.

Process Information: TS POWER PLANT

+ Process Name: 200 MW PC COAL BOILER

+ Process Type: 11.110 Primary Fuel: POWDER RIVER BASIN COAL Throughput: 2030.00 Throughput Unit: MMBTU/H Process Notes:

Pollutant Information: TS POWER PLANT - 200 MW PC COAL BOILER

+ Pollutant Name Hydrogen Fluoride Emission Limit 1: 1.1700 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.0900 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 24-HOUR ROLLING; COAL SULFUR= OR >0.45% Emission Limit 2: 95.0000 Emission Limit 2 Unit: PERCENT Emission Limit 2 Avg. Time/Condition: MIN REMOVAL EFFICIENCY, 30-DAY PERIOD

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.1500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 24-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit:Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.0670 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 24-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0120 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 24-HOUR ROLLING - FILTERABLE ONLY Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

+ Pollutant Name Sulfuric Acid (mist, vapors, etc) Emission Limit 1: 2.0600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MIST Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

Process Information: TS POWER PLANT+ Process Name: 35 MW COMBUSTION TURBINES

+ Process Type: 15.190 Primary Fuel: #2 FUEL OIL Throughput: 373.30 Throughput Unit: MMBTU/H Process Notes: 4 COMBUSTION TURBINES, EACH WITH SAME BACT EMISSION LEVEL BACK-UP ONLY, NOT TO BE FIRED CONCURRENTLY WITH PC BOILER.

Pollutant Information: TS POWER PLANT - 35 MW COMBUSTION TURBINES

+ Pollutant Name Sulfuric Acid (mist, vapors, etc) Emission Limit 1: 2.9000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MIST Emission Limit 2: 0.0500 Emission Limit 2 Unit: %WT Emission Limit 2 Avg. Time/Condition: LESS THAN 0.05 WT PERCENT SULFUR FUEL

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT

+ Pollutant Name Carbon Monoxide Emission Limit 1: 6.0000 Emission Limit 1 Unit: PPMVD Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING, 15% O2 Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 6.0000 Emission Limit 1 Unit: PPMVD Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING, 15% O2 Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSDOther Applicable Requirements: OPERATING PERMIT

+ Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.0500 Emission Limit 1 Unit: %WT Emission Limit 1 Avg. Time/Condition: LESS THAN 0.05 WT PERCENT SULFUR FUEL Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 13.7000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 24-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT

Process Information: TS POWER PLANT

+ Process Name: COOLING TOWER

+ Process Type: 99.009 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: TS POWER PLANT - COOLING TOWER

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0005 Emission Limit 1 Unit: PERCENT DRIFT Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit:Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT

Process Information: TS POWER PLANT

+ Process Name: ASH, LIME & CARBON SILOS

+ Process Type: 99.120 Primary Fuel: Throughput: Throughput Unit: Process Notes: MULTIPLE SILOS, INDIVIDUALLY CONTROLLED, EACH WITH SAME BACT LIMIT

Pollutant Information: TS POWER PLANT - ASH, LIME & CARBON SILOS

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0200 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT

Process Information: TS POWER PLANT

+ Process Name: COAL HANDLING OPERATIONS

+ Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: MULTIPLE TRANSFER POINTS ALL CONTROLLED BY BAGHOUSE

Pollutant Information: TS POWER PLANT - COAL HANDLING OPERATIONS

+ Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCFEmission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT

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NOTE: Draft determinations are marked with a " * " beside the RBLC ID. Required fields are denoted by "+".

Report Date: 02/28/2014            Control Technology Determinations (Freeform)
Facility Information: WYGEN 2

RBLC ID: WY-0057

+ Corporate/Company Name: BLACK HILLS CORPORATION

+ Facility Name: WYGEN 2 Facility State: WY

+ Permit Number: CT-3030 Application Accepted Received Date: 07/30/2001 ACT Permit Issuance Date: 09/25/2002 ACT Date determination entered in RBLC: 04/29/2003 Date determination last updated: 09/23/2003 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: 500 MW PC POWER PLANT Permit Notes: AGENCY CONTACT: STEWART GRINER SGRINE@STATE.WY.US (307) 777-7802

Process Information: WYGEN 2

+ Process Name: BOILER, 500 MW PC

+ Process Type: 11.110 Primary Fuel: SUBBITUMINOUS COAL Throughput: 5145.70 Throughput Unit: MMBTU/H Process Notes:Pollutant Information: WYGEN 2 - BOILER, 500 MW PC

+ Pollutant Name Sulfur Oxides (SOx) Emission Limit 1: 0.1000 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 30 DAY ROLLING Emission Limit 2: 0.1500 Emission Limit 2 Unit: LB/MMBTU Emission Limit 2 Avg. Time/Condition: 3 HOUR BLOCK

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Nitrogen Oxides (NOx) Emission Limit 1: 0.0700 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 30 DAY ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Particulate Matter (PM) Emission Limit 1: 0.0120 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Carbon Monoxide Emission Limit 1: 0.1500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

+ Pollutant Name Volatile Organic Compounds (VOC) Emission Limit 1: 0.0100 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

Process Information: WYGEN 2

+ Process Name: COAL HANDLING EQUIPMENT

+ Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: WYGEN 2 - COAL HANDLING EQUIPMENT

+ Pollutant Name Particulate Matter (PM) Emission Limit 1: 0.0090 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

Process Information: WYGEN 2+ Process Name: MATERIAL HANDLING EQUIPMENT, OTHER

+ Process Type: 90.999 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: WYGEN 2 - MATERIAL HANDLING EQUIPMENT, OTHER

+ Pollutant Name Particulate Matter (PM) Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:

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