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: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN

RBLC ID: MT-0019

+ Corporate/Company Name: CONTINENTAL ENERGY SERVICES, INC.

+ Facility Name: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN Facility County: SILVER BOW Facility State: MT Facility ZIP Code: 59701 Facility Country: USA Facility Contact Name: TERRY WEBSTER Facility Contact Phone: 406-448-6013 Facility Contact Email: EPA Region: 8 Agency Code: MT001 Agency Name: MONTANA DEPT OF ENVIRONMENTAL QUALITY Agency Contact: MR. DAN WALSH Agency Phone: (406)444-0285 Agency Email: Other Agency Contact Info: DAN WALSH MT 406-444-0285

+ Permit Number: 3165-00

+ SIC Code: 4911 NAICS Code: 221112 Facility Registry System Number: 110017421976 Application Accepted Received Date: 07/20/2001 ACT Permit Issuance Date: 06/07/2002 ACT Date determination entered in RBLC: 09/09/2003 Date determination last updated: 06/28/2004 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: NATURAL GAS FIRED COMBINED CYCLE POWER PLANT Permit Notes: Additional plantwide emissions: PM10 = 227 t/yr

Affected Boundaries: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN Previous Page+ Boundary (Class 1 Area or US Border Name): Anaconda-Pintlar Boundary Type (Class 1 or Intl Border): CLASS1 Distance: < 100 km Class 1 Area State: MT

+ Boundary (Class 1 Area or US Border Name): Yellowstone NP Boundary Type (Class 1 or Intl Border): CLASS1 Distance: Between 100km and 250km Class 1 Area State: MT

Facility-wide Emissions: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN

+ Pollutant Name: Carbon Monoxide Facility-wide Emissions Increase: 732.0000 (Tons/Year)

+ Pollutant Name: Nitrogen Oxides (NOx) Facility-wide Emissions Increase: 168.0000 (Tons/Year)

+ Pollutant Name: Particulate Matter (PM) Facility-wide Emissions Increase: 235.0000 (Tons/Year)

+ Pollutant Name: Sulfur Oxides (SOx) Facility-wide Emissions Increase: 10.7000 (Tons/Year)

+ Pollutant Name: Volatile Organic Compounds (VOC) Facility-wide Emissions Increase: 94.2000 (Tons/Year)

Process Information: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN

+ Process Name: TURBINE, COMBINED CYCLE 1

+ Process Type: 15.210 Primary Fuel: NATURAL GAS Throughput: 500.00 Throughput Unit: MW Process Notes: Throughput is combined for two 175 MW gas turbines and one 150 MW steam turbine. Source testing and inspections will be used for future compliance demonstrations.Pollutant Information: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN - TURBINE, COMBINED CYCLE 1

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

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 17.0000 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: Other Case-by-Case 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)?: Yes 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: N+ Control Method Description: Emission Limit 1: 32.4000 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: Other Case-by-Case 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)?: Yes Dollar Year Used In Cost Estimates: 2000 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: A

+ Control Method Description: SCR Emission Limit 1: 25.2000 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: 3.0000 Standard Emission Limit Unit: PPM @ 15% O2 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: 88.000 Compliance Verified: Unknown Cost Effectiveness: 5,800 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2000 Pollutants/Compliance Notes:

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

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

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 139.9000 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: 5.2700 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-CaseOther 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)?: Yes Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

Process Information: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN

+ Process Name: TURBINE, COMBINED CYCLE 2

+ Process Type: 15.210 Primary Fuel: NATURAL GAS Throughput: 500.00 Throughput Unit: MW Process Notes: Throughput is for two 175 MW gas turbines, and one 150 MW steam turbine. Source testing and inspections will be used for future compliance demonstration.

Pollutant Information: CONTINENTAL ENERGY SERVICES, INC., SILVER BOW GEN - TURBINE, COMBINED CYCLE 2

+ 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: A

+ Control Method Description: SCR Emission Limit 1: 25.2000 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: 3.0000 Standard Emission Limit Unit: PPM @ 15% O2 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: 88.000 Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2000 Pollutants/Compliance Notes:

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

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

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 139.9000 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: 5.2700 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: Other Case-by-Case 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: N

+ Control Method Description: Emission Limit 1: 17.0000 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: Other Case-by-Case 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 Particulate matter, filterable < 10 μ (FPM10) Pollutant Group(s): ( Particulate Matter (PM) )

+ CAS Number: PM Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 32.4000 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: Other Case-by-Case 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:

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