NOTE: Draft determinations are marked with a " * " beside the RBLC ID.

Required fields are denoted by "+".

Report Date: 05/05/2010            Control Technology Determinations (Freeform)
Facility Information: WPS - WESTON PLANT

RBLC ID: WI-0228

+ Corporate/Company Name: WISCONSIN PUBLIC SERVICE

+Facility Name: WPS - WESTON PLANT Facility County: MARATHON Facility State: WI Facility ZIP Code: 54474 Facility Country: USA Facility Contact Name: DAVID HARPOLE Facility Contact Phone: 9204331264 Facility Contact Email: EPA Region: 5 Agency Code: WI001 Agency Name: WISCONSIN DEPT OF NATURAL RESOURCES Agency Contact: MR. JEFFREY C. HANSON Agency Phone: (608)266-6876 Agency Email: JEFFREY.HANSON@DNR.STATE.WI.US Other Agency Contact Info: JEFFREY C. HANSON (608) 266-6876

DATA ENTERED DON C. FAITH III (608) 267 3135

HTTP://DNR.WI.GOV/ORG/AW/AIR/PERMITS/APM_TOC.HTM

+Permit Number: 04-RV-248

+ SIC Code: 4911 NAICS Code: 22 Facility Registry System Number: 110008231412 Application Accepted Received Date: 09/29/2004 ACT Permit Issuance Date: 10/19/2004 ACT Date determination entered in RBLC: 03/06/2006 Date determination last updated: 08/31/2006 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: ELECTRICAL UTILITY Permit Notes: SUPER CRITICAL PULVERIZED COAL (SCPC) FIRED ELECTRIC Previous PagePermit Notes: SUPER CRITICAL PULVERIZED COAL (SCPC) FIRED ELECTRIC STEAM BOILER AND ASSOCIATED OPERATIONS 500 MW BASELOAD

Affected Boundaries: WPS - WESTON PLANT

Process Information: WPS - WESTON PLANT

+Process Name: SUPER CRITICAL PULVERIZED COAL ELECTRIC STEAM BOILER (S04, P04)

+Process Type: 11.110 Primary Fuel: PRB COAL Throughput: 5173.07 Throughput Unit: MMBTU/H Process Notes: 500 MW CAPACITY, BASE LOAD OPERATION (30% TO 100% CAPACITY) BACKUP / STARTUP FUEL, NATURAL GAS (5.07 CF6) PRB COAL (~0.5 WT. % S MAX., 5.5 WT % ASH); ~ 8100 BTU / LB; 319.3 TPH

Pollutant Information: WPS - WESTON PLANT - SUPER CRITICAL PULVERIZED COAL ELECTRIC STEAM BOILER (S04, P04)

+Pollutant Name Hydrochloric Acid Pollutant Group(s): ( Acid Gasses/Mist , Hazardous Air Pollutants (HAP) , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7647-01-0 Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: DRY FGD Emission Limit 1: 10.9400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 24 HR AVG. Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: MACTOther Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Particulate Matter (PM) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: FABRIC FILTER BAGHOUSE (WHEN FIRING COAL). NATURAL GAS USE (W/O BAGHOUSE) IS LIMITED TO 500 MMBTU/HR. Emission Limit 1: 0.0200 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3 HR. AVG Emission Limit 2: 103.5200 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 3 HR. AVG. Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness:Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: POLLUTANT MEASUREMENT INCLUDES BACKHALF (METHOD 5 OR 5B + METHOD 202)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: FABRIC FILTER BAGHOUSE (WHEN FIRING COAL) NATURAL GAS USE (W/O BAGHOUSE) LIMITED TO 500 MMBTU/HR Emission Limit 1: 0.0180 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3 HOUR AVG. Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: INCLUDES BACKHALF

+Pollutant Name Sulfur Dioxide (SO2)Pollutant Group(s): ( InOrganic Compounds , Oxides of Sulfur (SOx) )

+ CAS Number: 7446-09-5 Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: DRY FGD, LIMIT ON EMISSIONS ENTERING CONTROL SYSTEM: 1.23 LBS/MMBTU 30 DAY AVG. Emission Limit 1: 0.1000 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 30 DAY AVG. Emission Limit 2: 0.0900 Emission Limit 2 Unit: LB/MMBTU Emission Limit 2 Avg. Time/Condition: 12 MO. ROLLING AVG. Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: 92.000 Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: POLLUTANT LIMITS INCLUDE STARTUP / SHUTDOWN AND ATOMIZER CHANGEOUT. PERMITTEE MAY ONLY USE ACTUAL HOURS OF OPERATION WHEN DETERMINING TIME AVERAGED EMISSIONS. WHEN CONDUCTING MAINTENANCE ON CONTROL SYSTEM (ROUTINE ATOMIZER CHANGEOUT): 3491.8 POUNDS PER HOUR ON A 3-HOUR AVERAGE AND 1508.9 POUNDS PER HOUR ON A 24-HOUR AVERAGE. CONTROLLED EMISSIONS: SULFUR DIOXIDE EMISSIONS SHALL BE LIMITED TO 621 POUNDS PER HOUR AVERAGED OVER ANY CONSECUTIVE 3-HOUR PERIOD AND SULFUR DIOXIDE EMISSIONS SHALL BE LIMITED TO 589 POUNDS PER HOUR AVERAGED OVER ANY CONSECUTIVE 24-HOUR PERIOD+Pollutant Name Nitrogen Oxides (NOx) Pollutant Group(s): ( InOrganic Compounds , Oxides of Nitrogen (NOx) , Particulate Matter (PM) )

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: LOW NOX BURNERS, GOOD COMBUSTION PRACTICES SELECTIVE CATALYTIC REDUCTION (SCR) Emission Limit 1: 0.0700 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 30 DAY AVG. EXCL. STARTUP/SHUTDOWN Emission Limit 2: 0.0600 Emission Limit 2 Unit: LB/MMBTU Emission Limit 2 Avg. Time/Condition: 12 MO. AVG. INCL. STARTUP / SHUTDOWN Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: 6,116 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2003 Pollutants/Compliance Notes: COST EFFECTIVENESS BASED ON 30 DAY AVG. VALUE.

+Pollutant Name Hazardous Air Pollutants (HAP) Pollutant Group(s): ( Hazardous Air Pollutants (HAP) )

+ CAS Number: HAP Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: FABRIC FILTER BAGHOUSE, DRY FGD, GOOD COMBUSTION PRACTICES Emission Limit 1: 0Emission Limit 1 Unit: Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: MACT Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: SOURCE SHALL MEET THE BACT PM AND SO2 LIMITS TO COMPLY WITH CASE BY CASE MACT FOR INORGANIC SOLID HAPS AND INORGANIC ACID HAPS. SOURCE SHALL MEET THE VOC BACT LIMIT TO COMPLY WITH MACT FOR ORGANIC HAPS.

+Pollutant Name Ammonia (NH3) Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7664-41-7 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: Emission Limit 1: 3.0000 Emission Limit 1 Unit: PPMDV Emission Limit 1 Avg. Time/Condition: 3% O2 Emission Limit 2: 55.5200 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition:Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: Other Applicable Requirements: OTHER Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: STATE HAP

+Pollutant Name Sulfuric Acid (mist, vapors, etc) Pollutant Group(s): ( InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7664-93-9 Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FGD SYSTEM Emission Limit 1: 0.0050 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 24 HR AVG. Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: REGULATED POLLUTANT IS SULFURIC ACID MIST.

+Pollutant Name Carbon Monoxide Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 630-08-0 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES; LOW NOX BURNERS Emission Limit 1: 0.1500 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: CALENDAR DAY AVG. Emission Limit 2: 3399.0000 Emission Limit 2 Unit: T/YR Emission Limit 2 Avg. Time/Condition: 12 MO. ROLLING INCL. STARTUP / SHUTDOWN Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness:Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, LOW NOX BURNERS Emission Limit 1: 0.0036 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 81.6000 Emission Limit 2 Unit: T/YR Emission Limit 2 Avg. Time/Condition: 12 MO. ROLLING, INCL. STARTUP / SHUTDOWN Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Lead (Pb) / Lead Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )+ CAS Number: 7439-92-1 Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.1300 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Mercury Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds )

+ CAS Number: 7439-97-6 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: FABRIC FILTER BAGHOUSE, SORBENT INJECTION OPTIMIZATION STUDY Emission Limit 1: 1.7000 Emission Limit 1 Unit: LB/TRILLION-BTU Emission Limit 1 Avg.Emission Limit 1 Avg. Time/Condition: 12 MO. ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OTHER Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: 83.000 Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Fluorine Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7782-41-4 Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: DRY FGD, BAGHOUSE Emission Limit 1: 0.0002 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 1.1200 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard EmissionStandard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Beryllium / Beryllium Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7440-41-7 Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 1.3000 Emission Limit 1 Unit: LB/TRILLION-BTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other thenDid factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

Process Information: WPS - WESTON PLANT

+Process Name: AUXILLIARY NAT. GAS FIRED BOILER (B25, S25)

+Process Type: 12.310 Primary Fuel: NATURAL GAS Throughput: 229.80 Throughput Unit: MMBTU/H Process Notes: THE AUXILIARY BOILER WILL BE USED TO PREHEAT STEAM TURBINE, PROVIDE PLANT HEATING AND PROVIDE SUPPLEMENTAL STEAM TO AUXILIARY EQUIPMENT WHEN THE MAIN SCPC BOILER IS OFFLINE. THE AUXILIARY BOILER WILL BE PACKAGED BOILER THAT WILL COMBUST ONLY NATURAL GAS. THE HOURS OF THE OPERATION OF THE AUXILIARY BOILER WILL BE LIMITED TO 2,000 HOURS IN ANY 12 CONSECUTIVE MONTHS.

Pollutant Information: WPS - WESTON PLANT - AUXILLIARY NAT. GAS FIRED BOILER (B25, S25)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS ONLY, GOOD COMBUSTION PRACTICES Emission Limit 1: 0.0075 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 1.7120 Emission Limit 2 Unit: LB/HEmission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: BOTH PM AND PM10 (INCLUDES BACKHALF M202 CATCH)

+Pollutant Name Sulfur Dioxide (SO2) Pollutant Group(s): ( InOrganic Compounds , Oxides of Sulfur (SOx) )

+ CAS Number: 7446-09-5 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0006 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.1400 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSDOther Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Nitrogen Oxides (NOx) Pollutant Group(s): ( InOrganic Compounds , Oxides of Nitrogen (NOx) , Particulate Matter (PM) )

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS, GOOD COMBUSTION PRACTICES, LOW NOX BURNERS Emission Limit 1: 0.1000 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 22.9000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: NSPS Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: UnknownCost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: HIGH HEAT RELEASE RATE BOILER (NSPS LIMIT OF 0.2 LBS/MMBTU)

+Pollutant Name Carbon Monoxide Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 630-08-0 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS, GOOD COMBUSTION PRACTICES, LOW NOX BURNER Emission Limit 1: 0.0800 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 18.4000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0800 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS, GOOD COMBUSTION PRACTICES, LOW NOX BURNERS Emission Limit 1: 0.0054 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 1.2400 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Lead (Pb) / Lead Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7439-92-1 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS FUEL, GOOD COMBUSTION PRACTICES Emission Limit 1: 0Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: 8.84 E-8 LBS/MMBTU

+Pollutant Name Mercury Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds )

+ CAS Number: 7439-97-6 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0001 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard EmissionStandard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Fluorine Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7782-41-4 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0003 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Hazardous Air Pollutants (HAP) Pollutant Group(s): ( Hazardous Air Pollutants (HAP) )

+ CAS Number: HAP Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES Emission Limit 1: 400.0000 Emission Limit 1 Unit: PPM CO @ 3% O2 Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: MACT Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness:Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: CASE BY CASE MACT

+Pollutant Name Sulfuric Acid (mist, vapors, etc) Pollutant Group(s): ( InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7664-93-9 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0210 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 2000 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: REGULATED POLLUTANT IS SULFURIC ACID MIST.

Process Information: WPS - WESTON PLANT+Process Name: UNIT 4 WATER COOLING TOWER (P26, S26)

+Process Type: 99.009 Primary Fuel: Throughput: Throughput Unit: Process Notes: A NEW WET COOLING TOWER WILL BE BUILT TO REMOVE EXCESS HEAT FROM THE STEAM CYCLE. SOME PARTICULATE MATTER CAN BECOME ENTRAINED IN THE PLUMES EXISTING THE CELLS OF THE COOLING TOWER. THESE EMISSIONS WILL BE MINIMIZED THROUGH THE USE OF DRIFT ELIMINATORS. 12-CELL COOLING TOWER WITH DRIFT ELIMINATORS 34.20 FEET PER CELL DIAMETER 1,189,342 ACFM FLOW RATE

Pollutant Information: WPS - WESTON PLANT - UNIT 4 WATER COOLING TOWER (P26, S26)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: HIGH EFFICIENCY DRIFT ELIMINATORS (0.002%) Emission Limit 1: 3.7600 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness:Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: CHROMIUM PROHIBITED

Process Information: WPS - WESTON PLANT

+Process Name: DIESEL BOOSTER PUMP (B27, S27)

+Process Type: 17.210 Primary Fuel: DIESEL FUEL OIL Throughput: 265.00 Throughput Unit: HP Process Notes: THIS UNIT WILL ASSIST IN CIRCULATING THE WATER FOR THE STEAM TURBINE DURING STARTUP AND SHUT DOWNS. THE BOOSTER PUMP WILL HAVE OPERATIONAL LIMIT OF 200 HOURS PER YEAR. 0.003% BY WEIGHT SULFUR FUEL

Pollutant Information: WPS - WESTON PLANT - DIESEL BOOSTER PUMP (B27, S27)

+Pollutant Name Sulfur Dioxide (SO2) Pollutant Group(s): ( InOrganic Compounds , Oxides of Sulfur (SOx) )

+ CAS Number: 7446-09-5 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: FUEL SULFUR CONTENT LIMIT (0.003 WT. % S) GOOD COMBUSTION PRACTICES Emission Limit 1: 0.5400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other thenDid factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: 'ULTRA LOW SULFUR DIESEL FUEL'

+Pollutant Name Sulfuric Acid (mist, vapors, etc) Pollutant Group(s): ( InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7664-93-9 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0.0832 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness:Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: REGULATED POLLUTANT IS SULFURIC ACID MIST.

+Pollutant Name Nitrogen Oxides (NOx) Pollutant Group(s): ( InOrganic Compounds , Oxides of Nitrogen (NOx) , Particulate Matter (PM) )

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES WITH IGNITION RETARD ULTRA LOW SULFUR (0.003 WT% S) DIESEL FUEL OIL Emission Limit 1: 8.2100 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Carbon Monoxide Pollutant Group(s): ( InOrganic Compounds )+ CAS Number: 630-08-0 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW S DIESEL FUEL OIL Emission Limit 1: 1.7700 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT% S) DIESEL FUEL OIL Emission Limit 1: 0.7000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H/ 12 MO. ROLLING LIMITEmission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Lead (Pb) / Lead Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7439-92-1 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 HRS. / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit:Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Mercury Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds )

+ CAS Number: 7439-97-6 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 HRS. / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other thenDid factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, DIESEL FUEL SULFUR CONTENT (0.003 WT. % S) Emission Limit 1: 0.5800 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0003 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness:Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: BOTH PM AND PM 10 (INCL. M202 BACKHALF CATCH)

+Pollutant Name Fluorine Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7782-41-4 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0.0017 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 HRS. / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

Process Information: WPS - WESTON PLANT+Process Name: MAIN FIRE PUMP (DIESEL ENGINE)

+Process Type: 17.210 Primary Fuel: DIESEL FUEL OIL Throughput: 460.00 Throughput Unit: HP Process Notes: THIS UNIT WILL BE USED AS THE MAIN FIRE PUMP AND ONLY WILL BE USED FOR FIRE SUPPRESSION PURPOSES. THE MAIN FIRE PUMP WILL HAVE OPERATIONAL LIMIT OF 200 HOURS PER YEAR. 0.003% BY WEIGHT SULFUR FUEL

Pollutant Information: WPS - WESTON PLANT - MAIN FIRE PUMP (DIESEL ENGINE)

+Pollutant Name Fluorine Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7782-41-4 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0.0028 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used InDollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Sulfuric Acid (mist, vapors, etc) Pollutant Group(s): ( InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7664-93-9 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0.1400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: REGULATED POLLUTANT IS SULFURIC ACID MIST.

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 1.0100 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)

+Pollutant Name Sulfur Dioxide (SO2) Pollutant Group(s): ( InOrganic Compounds , Oxides of Sulfur (SOx) )

+ CAS Number: 7446-09-5 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0.9400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % SEmission Limit 2 Avg. Time/Condition: DIESEL FUEL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 1.1400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSDOther Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Lead (Pb) / Lead Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7439-92-1 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: UnknownCost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Mercury Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds )

+ CAS Number: 7439-97-6 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 0 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:+Pollutant Name Nitrogen Oxides (NOx) Pollutant Group(s): ( InOrganic Compounds , Oxides of Nitrogen (NOx) , Particulate Matter (PM) )

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, IGNITION TIMING RETARD, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OIL Emission Limit 1: 14.2600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

+Pollutant Name Carbon Monoxide Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 630-08-0 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: GOOD COMBUSTION PRACTICES, ULTRA LOW SULFUR (0.003 WT. % S) DIESEL FUEL OILEmission Limit 1: 3.0700 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: 200 H / 12 MO. ROLLING LIMIT Emission Limit 2: 0.0030 Emission Limit 2 Unit: WT. % S Emission Limit 2 Avg. Time/Condition: DIESEL FUEL OIL Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes:

Process Information: WPS - WESTON PLANT

+Process Name: SYSTEM 1 - NEW RECLAIM TUNNEL EXIT, #34 (P30, S30)

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: CONTROL EQUIPMENT: FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - SYSTEM 1 - NEW RECLAIM TUNNEL EXIT, #34 (P30, S30)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PMTest Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.7900 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCLUDING M202 BACKHALF CATCH). 10% OPACITY LIMIT

Process Information: WPS - WESTON PLANT

+Process Name: P40, S40, CONVEYOR 11 TELESCOPIC CHUTE #29

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: FABRIC FILTER BAGHOUSEPollutant Information: WPS - WESTON PLANT - P40, S40, CONVEYOR 11 TELESCOPIC CHUTE #29

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: TELESCOPIC CHUTE, FUGITIVE DUST PLAN Emission Limit 1: 0.2300 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: 10% OPACITY

+Pollutant Name Particulate Matter (PM) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P+ Control Method Description: TELESCOPIC CHUTE, FUGITIVE DUST PLAN Emission Limit 1: 0.4840 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: 10% OPACITY

Process Information: WPS - WESTON PLANT

+Process Name: P41, S41, SYSTEM 2 - NEW JUNCTION HOUSE 2, #31 (13)

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: CONTROL EQUIPMENT: FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - P41, S41, SYSTEM 2 - NEW JUNCTION HOUSE 2, #31 (13)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10)Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 2.5900 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH).

Process Information: WPS - WESTON PLANT

+Process Name: P42, S42, SYSTEM 3 - NEW JUNCTION HOUSE 3, #32

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: CONTROL EQUIPMENT: FABRIC FILTER BAGHOUSEPollutant Information: WPS - WESTON PLANT - P42, S42, SYSTEM 3 - NEW JUNCTION HOUSE 3, #32

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.7900 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)

Process Information: WPS - WESTON PLANT

+Process Name: P43, S43, SYSTEM 4 - UNIT 4 SILO FILL SYSTEM #7

+Process Type: 90.011 Primary Fuel:Throughput: Throughput Unit: Process Notes: CONTROL EQUIPMENT: FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - P43, S43, SYSTEM 4 - UNIT 4 SILO FILL SYSTEM #7

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 3.8400 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)Process Information: WPS - WESTON PLANT

+Process Name: P44, S44, SYSTEM 1 - LIME STORAGE SILO BIN VENT #22

+Process Type: 90.019 Primary Fuel: Throughput: Throughput Unit: Process Notes: SUPER CRITICAL PULVERIZED COAL BOILER (LIME STORAGE SILO) FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - P44, S44, SYSTEM 1 - LIME STORAGE SILO BIN VENT #22

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.1000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: NoDollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)

Process Information: WPS - WESTON PLANT

+Process Name: P45, S45, SYSTEM 2 - LIME DAY BIN VENT, #27

+Process Type: 90.019 Primary Fuel: Throughput: Throughput Unit: Process Notes: LIME STORAGE FOR SUPER CRITICAL PULVERIZED COAL BOILER CONTROL EQUIPMENT: FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - P45, S45, SYSTEM 2 - LIME DAY BIN VENT, #27

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.2600 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency:Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)

Process Information: WPS - WESTON PLANT

+Process Name: P46, S46, SYSTEM 1 - FGD PRODUCT MECHANICAL EXHAUSTER, #23

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

Pollutant Information: WPS - WESTON PLANT - P46, S46, SYSTEM 1 - FGD PRODUCT MECHANICAL EXHAUSTER, #23

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0200 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.6500 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH)

Process Information: WPS - WESTON PLANT

+Process Name: P47, S47, SYSTEM 2 - FGD PRODUCT MECHANICAL EXHAUSTER, #23

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

Pollutant Information: WPS - WESTON PLANT - P47, S47, SYSTEM 2 - FGD PRODUCT MECHANICAL EXHAUSTER, #23

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0200 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.6500 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit:Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH) 10% OPACITY

Process Information: WPS - WESTON PLANT

+Process Name: P50, S50, SYSTEM 5 - FGD WASTE SILO BIN VENT, #20

+Process Type: 11.110 Primary Fuel: Throughput: Throughput Unit: Process Notes: FABRIC FILTER BAGHOUSE

Pollutant Information: WPS - WESTON PLANT - P50, S50, SYSTEM 5 - FGD WASTE SILO BIN VENT, #20

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: B

+ Control Method Description: FABRIC FILTER BAGHOUSE, FUGITIVE DUST PLAN Emission Limit 1: 0.0200 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 1.1200 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition:Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH) 10% OPACITY

Process Information: WPS - WESTON PLANT

+Process Name: F56, WESTON UNIT 4 COAL PILE

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: NORMAL OPERATING SCHEDULE: 24 HRS/DAY, 365 DAYS/YR PROCESS DESCRIPTION: COAL STORAGE PILE AND PILE TRAFFIC FUGITIVE EMISSIONS WILL BE CONTROLLED BY SUPPRESSION SYSTEM OPERATION. MONITORING AND RECORDING WILL BE DONE BY PLANT PERSONNEL INSPECT SYSTEM AND LOG OPERATION.

Pollutant Information: WPS - WESTON PLANT - F56, WESTON UNIT 4 COAL PILE

+Pollutant Name Particulate Matter (PM) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method FUGITIVE DUST CONTROL PLAN; WET SUPRESSANTS OR+ Control Method Description: FUGITIVE DUST CONTROL PLAN; WET SUPRESSANTS OR SURFACE STABILIZING AGENTS; COAL PILE MAINTENACE PROCEDURES; WEEKLY INSPECTION OF INACTIVE PILE Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: FUGITIVE DUST (PM AND PM10); WEEKLY INSPECTION OF INACTIVE PILE

Process Information: WPS - WESTON PLANT

+Process Name: P61, S61, MACHINE SHOP / WELDING SHOP

+Process Type: 99.012 Primary Fuel: Throughput: Throughput Unit: Process Notes: THE NEW WELDING SHOPS WILL BE AN EXTENSION ONTO THEProcess Notes: THE NEW WELDING SHOPS WILL BE AN EXTENSION ONTO THE EXISTING BUILDING WESTON WELDING SHOP. IT IS EXPECTED THAT THE EXPANDED SHOPS WILL INCLUDE EXHAUST FAN VENTILATION (WILL NOT INCLUDE BAGHOUSES), A VARIETY OF WELDING OPERATIONS OCCUR WITHIN THE WELD SHOPS INCLUDING SMALLER PIECES AND ASSEMBLY PROCESSES. ADDITIONAL WELDING DOES OCCUR THROUGHOUT THE PLANT FOR IN-STU WELDING. WELDING OPERATIONS INCLUDE GAS TUNGSTEN ARC WELDING (GTAW), SHIELDED METAL ARC WELDING (SMAW), GAS METAL ARC (GMAW), WIRE FEED WELDING AND OTHER WELDING TECHNIQUES AS NEEDED. OTHER USES IN THE WELD SHOP INCLUDE USING THE OXY-ACETYLENE TORCHES, CUT OFF TORCHES AND OTHER METAL WORKING EQUIPMENT. THERE IS NO CLEAR WAY TO DIFFERENTIATE THE FW4 WELDING FROM W1 , W2 AND W3 WITHIN THIS CENTRALIZED SHOP. THUS THE PROPOSED WELDING WILL BE ASSUMED TO BE THE MODIFICATION OF THE EXISTING WELDING OPERATION.

Pollutant Information: WPS - WESTON PLANT - P61, S61, MACHINE SHOP / WELDING SHOP

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: WELDING ROD USAGE LIMIT Emission Limit 1: 0.0650 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other thenDid factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH) THE TOTAL AMOUNT OF ELECTRODES USED MAY NOT EXCEED 35,148 POUNDS IN ANY 12 CONSECUTIVE MONTHS. THE TOTAL AMOUNT OF ELECTRODES MAY NOT EXCEED 96 POUNDS PER DAY ON A MONTHLY AVERAGE.

+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: WELDING ROD USAGE LIMIT Emission Limit 1: 0.2300 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: UnknownCost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: THE TOTAL AMOUNT OF ELECTRODES USED MAY NOT EXCEED 35,148 POUNDS IN ANY 12 CONSECUTIVE MONTHS. THE TOTAL AMOUNT OF ELECTRODES MAY NOT EXCEED 96 POUNDS PER DAY ON A MONTHLY AVERAGE.

Process Information: WPS - WESTON PLANT

+Process Name: P62, S62, RAILCAR FACILITY WELDING SHOP

+Process Type: 99.012 Primary Fuel: Throughput: Throughput Unit: Process Notes:

Pollutant Information: WPS - WESTON PLANT - P62, S62, RAILCAR FACILITY WELDING SHOP

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: WELDING ROD USAGE LIMIT Emission Limit 1: 0.0650 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements:Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: BOTH PM AND PM10 (INCL. M202 BACKHALF CATCH) THE TOTAL AMOUNT OF ELECTRODES USED MAY NOT EXCEED 35,148 POUNDS IN ANY 12 CONSECUTIVE MONTHS. THE TOTAL AMOUNT OF ELECTRODES MAY NOT EXCEED 96 POUNDS PER DAY ON A MONTHLY AVERAGE.

+Pollutant Name Volatile Organic Compounds (VOC) Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: WELDING ROD USAGE LIMIT Emission Limit 1: 0.2300 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: UnknownCost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: THE TOTAL AMOUNT OF ELECTRODES USED MAY NOT EXCEED 35,148 POUNDS IN ANY 12 CONSECUTIVE MONTHS. THE TOTAL AMOUNT OF ELECTRODES MAY NOT EXCEED 96 POUNDS PER DAY ON A MONTHLY AVERAGE.

Process Information: WPS - WESTON PLANT

+Process Name: B63, S63; B64, S64 - NATURAL GAS STATION HEATER 1 AND 2

+Process Type: 13.310 Primary Fuel: NATURAL GAS Throughput: 0.75 Throughput Unit: MMBTU/H Process Notes: EMISSION LIMITS ARE THOSE FOR EACH UNIT.

Pollutant Information: WPS - WESTON PLANT - B63, S63; B64, S64 - NATURAL GAS STATION HEATER 1 AND 2

+Pollutant Name Lead (Pb) / Lead Compounds Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7439-92-1 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other ApplicableOther Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Mercury Pollutant Group(s): ( Hazardous Air Pollutants (HAP) , Heavy Metals , InOrganic Compounds )

+ CAS Number: 7439-97-6 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: UnknownCost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Fluorine Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 7782-41-4 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0002 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: FLUORIDES (LIMIT IS FOR EACH UNIT)+Pollutant Name Sulfuric Acid (mist, vapors, etc) Pollutant Group(s): ( InOrganic Compounds , Particulate Matter (PM) )

+ CAS Number: 7664-93-9 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0001 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS FUEL Emission Limit 1: 0.0060 Emission Limit 1 Unit: LB/HEmission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Particulate Matter (PM) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0100 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: Standard Emission Limit: 0 Standard EmissionStandard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM (INCL. M202 BACKHALF CATCH) (LIMIT IS FOR EACH UNIT)

+Pollutant Name Sulfur Dioxide (SO2) Pollutant Group(s): ( InOrganic Compounds , Oxides of Sulfur (SOx) )

+ CAS Number: 7446-09-5 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0004 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other thenDid factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Nitrogen Oxides (NOx) Pollutant Group(s): ( InOrganic Compounds , Oxides of Nitrogen (NOx) , Particulate Matter (PM) )

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0730 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental CostIncremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Carbon Monoxide Pollutant Group(s): ( InOrganic Compounds )

+ CAS Number: 630-08-0 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0600 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

+Pollutant Name Volatile Organic Compounds (VOC)Pollutant Group(s): ( Volatile Organic Compounds (VOC) )

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: NATURAL GAS Emission Limit 1: 0.0040 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?:

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes: (LIMIT IS FOR EACH UNIT)

Process Information: WPS - WESTON PLANT

+Process Name: P65, S65, P66, S66; PAC TRUCK UNLOADING, PAC SILO LOADING

+Process Type: 90.011 Primary Fuel: Throughput: Throughput Unit: Process Notes: NOTE TO RBLC REVIEWER ==> JOE S. (RBLC STAFF) FILLED INProcess Notes: NOTE TO RBLC REVIEWER ==> JOE S. (RBLC STAFF) FILLED IN BLANK PROC. TYPE CODE. PLEASE CHECK IT!! //// (LIMIT IS FOR EACH UNIT); FABRIC FILTER BAGHOUSE ON EACH.

Pollutant Information: WPS - WESTON PLANT - P65, S65, P66, S66; PAC TRUCK UNLOADING, PAC SILO LOADING

+Pollutant Name Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: FABRIC FILTER BAGHOUSE Emission Limit 1: 0.0200 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.2100 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: NOT AVAILABLE

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: PM AND PM10 (INCL. M202 BACKHALF CATCH); 10 % OPACITY LIMIT (LIMIT IS FOR EACH UNIT)Process Information: WPS - WESTON PLANT

+Process Name: F134 ROADWAYS

+Process Type: 99.140 Primary Fuel: Throughput: Throughput Unit: Process Notes: ALL HAUL ROADS ON-SITE WILL BE PAVED WHERE POSSIBLE. THE FOLLOWING ARE THE NEW ROADS FOR THE WESTON 4 PROJECT SOURCES. R09 -W4 FLY ASH ALTERNATE R10-W4 LINE DELIVERIES R11 - W4 BOTTOM ASH (DAILY ROUTE) R13 - W4 SALABLE FLY ASH (IN SEASON) R14 - W4 PAC DELIVERIES THESE ROADS WILL ONLY BE OPERATED FROM 6 AM TILL 10 PM (16 HOURS EACH DAY)

Pollutant Information: WPS - WESTON PLANT - F134 ROADWAYS

+Pollutant Name Particulate Matter (PM) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: PAVE ALL HAUL ROADS WHERE POSSIBLE, FUGITIVE DUST CONTROL PLAN, WATERING ROADWAYS, SWEEPING ROADS, LIMIT ROAD HOURS OF OPERATION 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: Standard Emission Limit: 0 Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: Did factors, other then air pollution technology considerations influence the BACT decisions?: U

+Percent Efficiency:Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2006 Pollutants/Compliance Notes: RACT REQUIRES THEY SWEEP DAILY (EXC. WHERE WEATHER PREVENTS). PAVE ALL HAUL ROADS WHERE POSSIBLE, FUGITIVE DUST CONTROL PLAN, WATERING ROADWAYS, SWEEPING ROADS, LIMIT ROAD HOURS OF OPERATION. NO EMISSION LIMITS GIVEN.

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