MILES CITY FIELD OFFICE 

Supplemental Air Quality Analysis 

APPENDIX D 

MAPS 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supplemental Air Quality Analysis 

APPENDIX D 

List of Figures 

Figure D-1: 1-Hour NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-2: 1-Hour NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-3: 3-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-4: 3-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-5: 24-Hour PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-6: 24-Hour PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised
 

Figure D-7: 24-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-8: 24-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-9: Annual NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-10: Annual NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-11: Annual PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-12: Annual PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-13: Annual SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Alternative H Revised 

Figure D-14: Annual SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Alternative H Revised 

Figure D-15: 1-Hour NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-16: 1-Hour NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A 

Figure D-17: 3-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-18: 3-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A 

Figure D-19: 24-Hour PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-20: 24-Hour PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A
 

Figure D-21: 24-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-22: 24-Hour SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A 

Figure D-23: Annual NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-24: Annual NO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A 

Figure D-25: Annual PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-26: Annual PM10 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A 

Figure D-27: Annual SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – All Sources Scenario 2A 

Figure D-28: Annual SO2 Concentrations for Montana Near Field plus Crow IR and N.
 

Cheyenne IR Receptors – MT CBNG RFD Operation Sources Scenario 2A
 

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Figure D-3
 

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Figure D-5
 

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Figure D-7
 

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Figure D-9
 

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Figure D-11
 

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Figure D-13
 

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Figure D-15
 

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Figure D-16 

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Figure D-17
 

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Figure D-19
 

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Figure D-21
 

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Figure D-23
 

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2A (200:5:1 @ 1.0g/bhp-hr) 50% Reduction 

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Figure D-25
 

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Figure D-27
 

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