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

Required fields are denoted by "+".

Report Date: 05/06/2010            Control Technology Determinations (Freeform)
Facility Information: COMINCO RED DOG MINE

RBLC ID: 

### * AK-0033

+ Corporate/Company Name: COMINCO ALASKA, INC.

+ Facility Name: COMINCO RED DOG MINE Facility County: NORTHWEST ARCTIC BOROUGH Facility State: AK Facility ZIP Code: 99752 Facility Country: USA Facility Contact Name: JOHN KEY Facility Contact Phone: 9074262170 Facility Contact Email: EPA Region: 10 Agency Code: AK001 Agency Name: ALASKA DEPT OF ENVIRONMENTAL CONS Agency Contact: MS. SALLY A. RYAN, P.E. Agency Phone: (907) 269-6271 Agency Email: SALLY.RYAN@ALASKA.GOV Other Agency Contact Info: JIM BAUMGARTNER 410 WILLOUGHBY AVE. SUITE 105 JUNEAU, AK 99801 (907)4655108

+ Permit Number: 9932-AC005

+ SIC Code: 1031 NAICS Code: 212231 Facility Registry System Number: 110000601705 Application Accepted Received Date: 06/29/1998 ACT Permit Issuance Date: 12/10/1999 ACT Date determination entered in RBLC: 05/17/2000 Date determination last updated: 03/30/2010 Permit Type: Both B: (Add new process to existing facility) &C: (Modify process at existing facility) Permit URL: Facility Description: Permit Notes: THIS PERMIT ACTION WAS FOR THE PRODUCTION INCREASE Previous PagePermit Notes: THIS PERMIT ACTION WAS FOR THE PRODUCTION INCREASE PROJECT AND IMPOSES LIMITS ON NOX, PM AND VE ONLY. CO IS BELOW THE PSD LIMIT. SOX LIMITED BY THE USE OF FUEL OIL WITH < 0.45% S BY WEIGHT. THE RED DOG MINE IS INCREASING ORE PRODUCTION FROM 2,500,000 T/YR TO 3,500,000 T/YR. PERMIT RECEIVED AND PERMIT ISSUE DATES FOR MODIFICATION.

Affected Boundaries: COMINCO RED DOG MINE

+ Boundary (Class 1 Area or US Border Name): Mount McKinley NP Boundary Type (Class 1 or Intl Border): CLASS1 Distance: > 250 km Class 1 Area State: AK

Process Information: COMINCO RED DOG MINE

+ Process Name: ROCK CRUSHER, READ SCREEN-ALL, PORTABLE

+ Process Type: 90.023 Primary Fuel: ARCTIC DIESEL Throughput: 350.00 Throughput Unit: T/H Process Notes:

Pollutant Information: COMINCO RED DOG MINE - ROCK CRUSHER, READ SCREEN-ALL, PORTABLE

+ 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: MEET REQUIREMENTS OF 40 CFR 60.673(B), (C), & (E). Emission Limit 1: 0.0500 Emission Limit 1 Unit: G/DSCM Emission Limit 1 Avg. Time/Condition: 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: 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:

Process Information: COMINCO RED DOG MINE

+ Process Name: HEATERS, SMALL, 45 UNITS

+ Process Type: 13.220 Primary Fuel: DIESEL Throughput: Throughput Unit: Process Notes: THESE SMALL HEATERS HAVE CAPACITIES FROM 0.1 MMBTU/HR TO 0.67 MMBTU/HR. PERMIT IMPOSES ONLY A VE LIMIT FOR THESE SOURCES.

Pollutant Information: COMINCO RED DOG MINE - HEATERS, SMALL, 45 UNITS

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg.Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 20.0000 Standard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: ASSAY LAB BUCKING ROOM

+ Process Type: 82.800 Primary Fuel: Throughput: 3700.00 Throughput Unit: ACFM Process Notes:

Pollutant Information: COMINCO RED DOG MINE - ASSAY LAB BUCKING ROOM

+ 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+ Control Method Description: BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0100 Standard Emission Limit Unit: GR/DSCF 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: COMINCO RED DOG MINE

+ Process Name: IC ENGINE , 200 HP, DIESEL ,CATERPILLAR

+ Process Type: 17.210 Primary Fuel: ARCTIC DIESEL Throughput: 9.00 Throughput Unit: GAL/H Process Notes: PERMIT IMPOSES LIMITS ON NOX AND VE. NOX TO BE TESTED AT THE DEPARTMENT'S REQUEST. NO REQUEST HAS BEEN MADE.Pollutant Information: COMINCO RED DOG MINE - IC ENGINE , 200 HP, DIESEL ,CATERPILLAR

+ 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: N

+ Control Method Description: PERMIT LIMITS ARE IN LB/HP-H. Emission Limit 1: 0.0310 Emission Limit 1 Unit: LB/HP-H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 14.1000 Emission Limit 2 Unit: G/HP-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:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 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: 20.0000 Standard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: IC ENGINE, DIESEL , CUMMINS/ONAN

+ Process Type: 17.210 Primary Fuel: ARCTIC DIESEL Throughput: 188.00 Throughput Unit: KW Process Notes: PERMIT IMPOSES LIMITS ON NOX AND VE. NOX TO BE TESTED AT DEPARTMENT'S REQUEST. NO REQUEST HAS BEEN MADE.

Pollutant Information: COMINCO RED DOG MINE - IC ENGINE, DIESEL , CUMMINS/ONAN+ 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: N

+ Control Method Description: PERMIT LIMIT IS IN LB/HP-HR Emission Limit 1: 0.0310 Emission Limit 1 Unit: LB/HP-H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 14.1000 Emission Limit 2 Unit: G/B-HP-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:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000Emission 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: 20.0000 Standard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: IC ENGINE, DIESEL , WARTSILA

+ Process Type: 17.110 Primary Fuel: ARCTIC DIESEL Throughput: 5.00 Throughput Unit: MW Process Notes: NOTE: EPA CURRENTLY DISPUTES THE NOX BACT DETERMINATION FOR THIS UNIT. AS OF 5/18/2000 THIS DISPUTE HAS NOT BEEN RESOLVED. NOT YET CONSTRUCTED, NO TESTING PERFORMED.

Pollutant Information: COMINCO RED DOG MINE - IC ENGINE, DIESEL , WARTSILA

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

+ CAS Number: 10102 Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: LOW NOX CONVERSION PACKAGE Emission Limit 1: 121.3000 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: 6.2000 Standard Emission Limit Unit: G/B-HP-H 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 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: 2.6000 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: 0.1800 Standard Emission Limit Unit: G/B-HP-H 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 Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 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: 20.0000 Standard EmissionStandard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: INCINERATOR

+ Process Type: 21.400 Primary Fuel: ARCTIC DIESEL Throughput: 625.00 Throughput Unit: LB/H Process Notes: INCINERATOR BURNS GARBAGE AND OTHER NONHAZARDOUS SOLIDS. DESIGN THROUGHPUT FOR WASTE IS 625 LB/H. PERMIT IMPOSES LIMITS ON ONLY PM AND VE FOR THIS PROCESS.

Pollutant Information: COMINCO RED DOG MINE - INCINERATOR

+ 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: 0.0860 Emission Limit 1 Unit: GR/DSCF @ 7% O2 Emission Limit 1 Avg. Time/Condition:Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0860 Standard Emission Limit Unit: GR/DSCF @ 7% 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: Compliance Verified: Unknown Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: 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: 10.0000 Standard Emission Limit Unit: % OPACITY Standard Limit Avg.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: COMINCO RED DOG MINE

+ Process Name: CRUSHER, GYRATORY

+ Process Type: 90.018 Primary Fuel: ARCTIC DIESEL Throughput: 1800.00 Throughput Unit: T/H Process Notes:

Pollutant Information: COMINCO RED DOG MINE - CRUSHER, GYRATORY

+ 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: BAGHOUSE Emission Limit 1: 0.0100 Emission Limit 1 Unit: GR/DSCF Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0 Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard EmissionStandard Emission Limit: 0.0100 Standard Emission Limit Unit: GR/DSCF 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: COMINCO RED DOG MINE

+ Process Name: METALLIC MINERAL PROCESSING EQUIPMENT,VARIOUS

+ Process Type: 90.023 Primary Fuel: ARCTIC DIESEL Throughput: 10000.00 Throughput Unit: ACFM Process Notes: THIS INCLUDES PRIMARY JAW CRUSHER, #1 AND #2 COARSE ORE CONVEYORS, ASSAY LAB BUCKING ROOM, GYRATORY CRUSHER,TRUCK UNLOADING/LOADING, MILL CONCENTRATE STORAGE, AND READ SCREEN-ALL. THE LIMIT SET FOR THESE SOURCES IS THE APPLICABLE NSPS UNDER 40 CFR 60.382(A).

Pollutant Information: COMINCO RED DOG MINE - METALLIC MINERAL PROCESSING EQUIPMENT,VARIOUS

+ 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: MEETS REQUIREMENTS OF 40 CFR 60.382(A) & (B). BAGHOUSE, WATERING AND CHEMICAL CONTROLS.Emission Limit 1: 0.0500 Emission Limit 1 Unit: G/DSCM 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: N/A Other Applicable Requirements: NSPS 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 Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: A

+ Control Method Description: MEET REQUIREMENTS OF 40 CFR 60.382 (A) AND (B). BAGHOUSE Emission Limit 1: 7.0000 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 EmissionStandard Emission Limit: 7.0000 Standard Emission Limit Unit: % OPACITY Standard Limit Avg. Time/Condition:

+ Case-by-Case Basis: N/A Other Applicable Requirements: NSPS 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: COMINCO RED DOG MINE

+ Process Name: IC ENGINE, 50 KW, DIESEL, DETROIT

+ Process Type: 17.210 Primary Fuel: ARCTIC DIESEL Throughput: 9.00 Throughput Unit: GAL/H Process Notes: NOX TO BE TESTED AT DEPARTMENT'S REQUEST, NO REQUEST HAS BEEN MADE. PERMIT IMPOSES LIMITS ON NOX AND VE.

Pollutant Information: COMINCO RED DOG MINE - IC ENGINE, 50 KW, DIESEL, DETROIT

+ 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: N

+ Control Method Description: PERMIT LIMITS ARE IN LB/HP-H. Emission Limit 1: 0.0310 Emission Limit 1 Unit: LB/HP-HEmission Limit 1 Avg. Time/Condition: Emission Limit 2: 14.1000 Emission Limit 2 Unit: G/B-HP-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:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 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: 20.0000 Standard EmissionStandard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: GENERATOR, DIESEL, 3208 TA CATERPILLAR

+ Process Type: 17.210 Primary Fuel: ARCTIC DIESEL Throughput: 150.00 Throughput Unit: KW Process Notes: NOX TO BE TESTED AT DEPARTMENT'S REQUEST, NO REQUEST HAS BEEN MADE. PERMIT IMPOSES LIMITS ON NOX AND VE.

Pollutant Information: COMINCO RED DOG MINE - GENERATOR, DIESEL, 3208 TA CATERPILLAR

+ 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: N

+ Control Method Description: EMISSION LIMITS SET IN LB/HP-H Emission Limit 1: 0.0310 Emission Limit 1 Unit: LB/HP-H Emission Limit 1 Avg.Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 14.1000 Emission Limit 2 Unit: G/HP-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:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 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: 20.0000 Standard EmissionStandard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: IC ENGINE, DIESEL, 3406 CATERPILLAR, 2 UNITS

+ Process Type: 17.210 Primary Fuel: ARCTIC DIESEL Throughput: 250.00 Throughput Unit: KW Process Notes: TWO IDENTICAL 3406 CATERPILLAR DIESEL IC ENGINES. NOX TO BE TESTED AT DEPARTMENT'S REQUEST, NO REQUEST HAS BEEN MADE. PERMIT IMPOSES LIMITS ON NOX AND VE.

Pollutant Information: COMINCO RED DOG MINE - IC ENGINE, DIESEL, 3406 CATERPILLAR, 2 UNITS

+ 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: N

+ Control Method Description: PERMIT LIMITS SET IN LB/HP-H Emission Limit 1: 0.0310 Emission Limit 1 Unit: LB/HP-H Emission Limit 1 Avg.Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 14.1000 Emission Limit 2 Unit: G/B-HP-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:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: N

+ Control Method Description: Emission Limit 1: 20.0000 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: 20.0000 Standard EmissionStandard Emission Limit Unit: % OPACITY 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: COMINCO RED DOG MINE

+ Process Name: HEATERS, ABCO, 3 UNITS

+ Process Type: 13.220 Primary Fuel: ARCTIC DIESEL Throughput: 13.40 Throughput Unit: MMBTU/H Process Notes: 3 ABCO HEATERS OF 13.4 MMBTU/HR EACH. ONLY NOX AND VE FOR THIS PROCESS.

Pollutant Information: COMINCO RED DOG MINE - HEATERS, ABCO, 3 UNITS

+ 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: LOW NOX BURNERS Emission Limit 1: 0.0840 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0840 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?:

+ Percent Efficiency: Compliance Verified: Yes Cost Effectiveness: 7,086 ($/ton) Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: 1998 Pollutants/Compliance Notes:

+ Pollutant Name Visible Emissions (VE) Pollutant Group(s):

+ CAS Number: VE Test Method: Unspecified

+ Control Method Code: P

+ Control Method Description: LOW NOX BURNERS Emission Limit 1: 20.0000 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: 20.0000 Standard Emission Limit Unit: % OPACITY 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: Yes Cost Effectiveness: Incremental Cost Effectiveness: Cost Verified (Y/N)?: No Dollar Year Used In Cost Estimates: Pollutants/Compliance Notes:

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