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: TRACY SUBSTATION EXPANSION PROJECT

RBLC ID: NV-0035

+ Corporate/Company Name: SIERRA PACIFIC POWER COMPANY

+Facility Name: TRACY SUBSTATION EXPANSION PROJECT Facility County: STOREY COUNTY Facility State: NV Facility ZIP Code: 89434 Facility Country: USA Facility Contact Name: Facility Contact Phone: Facility Contact Email: EPA Region: 9 Agency Code: NV001 Agency Name: NV DIV OF ENVIRONMENTAL PROTECTION, BR OF AIR POLLUTION CONTROL Agency Contact: MR. MATTHEW A. DEBURLE, P.E. Agency Phone: (775)687-9391 Agency Email: MDEBURLE@NDEP.NV.GOV Other Agency Contact Info:

+Permit Number: AP4911-1504

+ SIC Code: 4911 NAICS Code: 221112 Facility Registry System Number: 110000853345 Application Accepted Received Date: Permit Issuance Date: 08/16/2005 ACT Date determination entered in RBLC: 09/12/2005 Date determination last updated: 06/26/2008 Permit Type: A: New/Greenfield Facility Permit URL: Facility Description: 2 - NATURAL GAS FIRED COMBINED CYCLE COMBUSTION TURBINE GENERATORS WITH HRSG''S AND DUCT BURNERS. 2 - NATURAL GAS FIRED FUEL PREHEATERS. 1 - NATURAL GAS FIRED AUXILIARY BOILER Permit Notes: Previous PageAffected Boundaries: TRACY SUBSTATION EXPANSION PROJECT

Facility-wide Emissions: TRACY SUBSTATION EXPANSION PROJECT

+Pollutant Name: Carbon Monoxide Facility-wide Emissions Increase: 105.7800 (Tons/Year)

+Pollutant Name: Nitrogen Oxides (NOx) Facility-wide Emissions Increase: 175.8900 (Tons/Year)

+Pollutant Name: Particulate Matter (PM) Facility-wide Emissions Increase: 219.0700 (Tons/Year)

+Pollutant Name: Sulfur Oxides (SOx) Facility-wide Emissions Increase: 17.6100 (Tons/Year)

+Pollutant Name: Volatile Organic Compounds (VOC) Facility-wide Emissions Increase: 65.8700 (Tons/Year)

Process Information: TRACY SUBSTATION EXPANSION PROJECT

+Process Name: TURBINE, COMBINED CYCLE COMBUSTION #1 WITH HRSG AND DUCT BURNER.

+Process Type: 15.210 Primary Fuel: NATURAL GAS Throughput: 306.00 Throughput Unit: MW Process Notes:

Pollutant Information: TRACY SUBSTATION EXPANSION PROJECT - TURBINE, COMBINED CYCLE COMBUSTION #1 WITH HRSG AND DUCT BURNER.

+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: BEST COMBUSTION PRACTICES. Emission Limit 1: 1.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MISTEmission 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: OPERATING PERMIT 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: A

+ Control Method Description: OXIDATION CATALYST Emission Limit 1: 3.5000 Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 3.5000 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg.Standard Limit Avg. Time/Condition:

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

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: 2,736 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2005 Pollutants/Compliance Notes: INCREMENTAL COST EFFECTIVENESS ($/TON) : 5,472.00

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

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: OXIDATION CATALYST FOR CO ALSO MINIMIZES VOC EMISSIONS. Emission Limit 1: 4.0000 Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR 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: OPERATING PERMIT 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: 2005 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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0110 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR 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: NSPS , SIP , OPERATING PERMIT 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: Pollutants/CompliancePollutants/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: B

+ Control Method Description: SELECTIVE CATALYST REDUCTION W/ AMMONIA INJECTION Emission Limit 1: 2.0000 Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 2.0000 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg. Time/Condition:

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

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: 13,375 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2005 Pollutants/Compliance Notes: INCREMENTAL COST EFFECTIVENESS ($/TON) : 30,387.00

Process Information: TRACY SUBSTATION EXPANSION PROJECT

+Process Name: BOILER, AUXILIARY

+Process Type: 11.310Primary Fuel: NATURAL GAS Throughput: 37.70 Throughput Unit: MMBTU/H Process Notes: ORIGINAL PERMIT HAD 159 MMBTU/HR AUX BOILER. PERMITTEE INSTALLED A 37.7 MMBTU/HR BOILER. A REVISED BACT ANALYSIS CONCLUDED THERE IS NO CHANGE IN THE PERFORMANCE EMISSION RATES BETWEEN THESE TWO SIZES.

Pollutant Information: TRACY SUBSTATION EXPANSION PROJECT - BOILER, AUXILIARY

+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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0040 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0040 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP , OPERATING PERMIT 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: 2005 Pollutants/CompliancePollutants/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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0370 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0370 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT , 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: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0360 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0360 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT 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: 2005 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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0050 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg.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: OPERATING PERMIT 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: Pollutants/Compliance Notes:

Process Information: TRACY SUBSTATION EXPANSION PROJECT

+Process Name: TURBINE, COMBINED CYCLE COMBUSTION #2 WITH HRSG AND DUCT BURNER.

+Process Type: 15.210 Primary Fuel: NATURAL GAS Throughput: 306.00 Throughput Unit: MW Process Notes:

Pollutant Information: TRACY SUBSTATION EXPANSION PROJECT - TURBINE, COMBINED CYCLE COMBUSTION #2 WITH HRSG AND DUCT BURNER.

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

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

+ Control Method Code: A

+ Control Method Description: OXIDATION CATALYST SYSTEM Emission Limit 1: 3.5000Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 3.5000 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg. Time/Condition:

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

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: 2,736 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2005 Pollutants/Compliance Notes: INCREMENTAL COST EFFECTIVENESS ($/TON) : 5,472.00

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

+ CAS Number: VOC Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: OXIDATION CATALYST FOR CO ALSO MINIMIZES VOC EMISSIONS. Emission Limit 1: 4.0000 Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: OPERATING PERMIT 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: 2005 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: BEST COMBUSTION PRACTICES. Emission Limit 1: 1.0000 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: OPERATING PERMIT 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:

+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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0110 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR 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: SIP , OPERATING PERMIT , 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: 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: SELECTIVE CATALYTIC REDUCTION WITH AMMONIA INJECTION Emission Limit 1: 2.0000 Emission Limit 1 Unit: PPM @ 15% O2 Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 2.0000 Standard Emission Limit Unit: PPM @ 15% O2 Standard Limit Avg. Time/Condition:

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

+Percent Efficiency: Compliance Verified: Unknown Cost Effectiveness: 13,375 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2005 Pollutants/Compliance Notes: INCREMENTAL COST EFFECTIVENESS ($/TON) : 30,387.00Process Information: TRACY SUBSTATION EXPANSION PROJECT

+Process Name: FUEL PREHEATER #2

+Process Type: 19.600 Primary Fuel: NATURAL GAS Throughput: 4.00 Throughput Unit: MMBTU/H Process Notes: FUEL PREHEATERS WERE REMOVED FROM THE PERMIT AS THEY WERE NEVER CONSTRUCTED.

Pollutant Information: TRACY SUBSTATION EXPANSION PROJECT - FUEL PREHEATER #2

+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: BEST COMBUSTION PRACTICES. Emission Limit 1: 0.0200 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0200 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP 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: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.1400 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.1400 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: 2005 Pollutants/Compliance Notes:

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

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

+ Control Method Code: P

+ Control Method Description: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0300 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0300 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: No Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0800 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0Emission 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: Pollutants/Compliance Notes:

Process Information: TRACY SUBSTATION EXPANSION PROJECT

+Process Name: FUEL PREHEATER #1

+Process Type: 19.600 Primary Fuel: NATURAL GAS Throughput: 4.00 Throughput Unit: MMBTU/H Process Notes: FUEL PREHEATERS WERE REMOVED FROM THE PERMIT AS THEY WERE NEVER CONSTRUCTED.

Pollutant Information: TRACY SUBSTATION EXPANSION PROJECT - FUEL PREHEATER #1

+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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0200Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0200 Standard Emission Limit Unit: LB/MMBTU Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: BACT-PSD Other Applicable Requirements: SIP 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: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0300 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0300Standard 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: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.1400 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR ROLLING Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.1400 Standard Emission Limit Unit: LB/MMBTU 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: 2005 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: BEST COMBUSTION PRACTICES Emission Limit 1: 0.0800 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: 3-HOUR AVERAGE 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: Pollutants/Compliance Notes:

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