# APPENDIX G

DEQ CALPUFF Impact Analysis Report8thHighestaTotal Daysb8thHighest Total Days 8thHighest Total Days22ndHighestcNumber of Daysd(2003,2004,2005)DEQ SCENARIOSBase Riley Boiler Scenario (wzI10471)0.721151.086411.109411.086 97NOx Control Scenario 1 - LNB (wzI10472)0.511110.822290.871290.816 69NOx Control Scenario 2 - LNB w/ OFA (wzI10473)0.45470.743240.803250.736 56NOx control scenario 3 - SCR (wzI10474)0.38360.625160.653180.613 40SO2 Control Scenario 1 - Lower Sulfur Coal (wzI10475)0.682151.016391.028361.014 90SO2 Control Scenario 2 - Dry Lime Injection (wzI10476)0.58690.814280.806290.806 66SO2 Control Scenario 3 - Dry Trona Injection (wzI10477)0.56590.764240.739250.761 58SO2 control Scenario 4 - Spray Dry FGD (wzI10478)0.52790.703220.707200.686 51SO2 Control Scenario 5 - Wet FGD (wzI10479)0.49970.647190.645170.638 43NOx Scenario 1 + SO2 Scenario 3 (wzI10480)0.32950.48360.48060.480 17NOx Scenario 1 + SO2 Scenario 4 (wzI10481)0.29430.40220.41730.402 8NOx Scenario 1 + SO2 Scenario 5 (wzI10482)0.27020.35910.35220.348 5NOx Scenario 2 + SO2 Scenario 3 (wzI10483)0.25820.39520.39430.394 7NOx Scenario 2 + SO2 Scenario 4 (wzI10484)0.22810.31910.33010.319 3NOx Scenario 2 + SO2 Scenario 5 (wzI10485)0.20110.27100.26300.261 1ENVIRON SCENARIOSeBase (Riley + Pulp Dryers)0.956231.454491.388551.399 127DEQ - wzI104710.721151.086411.109411.086 97Riley (LNB w OFA) + Pulp Dryers0.713161.124401.055381.055 94DEQ - wzI104720.511110.822290.871290.816 69Riley (LNB & FGD) + Pulp Dryers0.51090.789260.686220.762 57DEQ - wzI104860.46770.715200.618170.679 44DEQ - wzI104840.22810.31910.33010.319 3d. Total number of days in the 3-year period that exceed 0.5 delta-deciviews.e. Scenarios below this line were modeled and compiled by Environ International Corporation under contract with TASCOControl Scenario (Model Run ID)Change in Visibility Compared Against 20% Best Days Natural Background ConditionsDelta-Deciview Value Larger Than 0.5 From One Year PeriodDelta-Deciview Value LargerThan 0.5 from 3 Year Period2003 2004 2005 2003-2005TASCO Nampa Riley Boiler BART Determination Modeling Results (Eagle Cap Wilderness, OR)a. The 8thhighest delta-deciview for the calendar year.b. Total number of days in 1 year that exceeded 0.5 delta-deciviews.c. The 22ndhighest delta-deciview value for the 3-year period.8thHighestaTotal Daysb8thHighest Total Days 8thHighest Total Days22ndHighestcNumber of Daysd(2003,2004,2005)DEQ SCENARIOSBase Riley Boiler Scenario (wzI10471)0.57790.888200.763190.786 48NOx Control Scenario 1 - LNB (wzI10472)0.42170.657140.595100.595 31NOx Control Scenario 2 - LNB w/ OFA (wzI10473)0.37350.589130.545100.545 28NOx control scenario 3 - SCR (wzI10474)0.30040.50590.45770.471 20SO2 Control Scenario 1 - Lower Sulfur Coal (wzI10475)0.54180.822170.706160.707 41SO2 Control Scenario 2 - Dry Lime Injection (wzI10476)0.44070.646110.545100.545 28SO2 Control Scenario 3 - Dry Trona Injection (wzI10477)0.41750.602110.50590.505 25SO2 control Scenario 4 - Spray Dry FGD (wzI10478)0.40250.55590.47050.480 19SO2 Control Scenario 5 - Wet FGD (wzI10479)0.38240.50080.41320.420 14NOx Scenario 1 + SO2 Scenario 3 (wzI10480)0.25530.38720.32410.324 6NOx Scenario 1 + SO2 Scenario 4 (wzI10481)0.23610.32310.26800.284 2NOx Scenario 1 + SO2 Scenario 5 (wzI10482)0.20710.26800.22800.230 1NOx Scenario 2 + SO2 Scenario 3 (wzI10483)0.20610.31910.26700.273 2NOx Scenario 2 + SO2 Scenario 4 (wzI10484)0.18710.25500.21400.228 1NOx Scenario 2 + SO2 Scenario 5 (wzI10485)0.15400.20000.17200.173 0ENVIRON SCENARIOSeBase (Riley + Pulp Dryers)0.799161.056300.954321.018 78DEQ - wzI104710.57790.888200.763190.786 48Riley (LNB w OFA) + Pulp Dryers0.60090.871190.711160.784 44DEQ - wzI104720.42170.658140.595100.595 31Riley (LNB & FGD) + Pulp Dryers0.43660.617120.46060.528 24DEQ - wzI104860.38940.57290.40920.465 15DEQ - wzI104840.18710.25500.21400.228 1d. Total number of days in the 3-year period that exceed 0.5 delta-deciviews.TASCO Nampa Riley Boiler BART Determination Modeling Results (Hells Canyon National Recreation Area, ID)a. The 8thhighest delta-deciview for the calendar year.b. Total number of days in 1 year that exceeded 0.5 delta-deciviews.c. The 22ndhighest delta-deciview value for the 3-year period.e. Scenarios below this line were modeled and compiled by Environ International Corporation under contract with TASCOControl Scenario (Model Run ID)Change in Visibility Compared Against 20% Best Days Natural Background ConditionsDelta-Deciview Value Larger Than 0.5 From One Year PeriodDelta-Deciview Value LargerThan 0.5 from 3 Year Period2003 2004 2005 2003-20058thHighestaTotal Daysb8thHighest Total Days 8thHighest Total Days22ndHighestcNumber of Daysd(2003,2004,2005)DEQ SCENARIOSBase Riley Boiler Scenario (wzI10471)0.20710.24910.20800.224 2NOx Control Scenario 1 - LNB (wzI10472)0.14100.18910.15400.174 1NOx Control Scenario 2 - LNB w/ OFA (wzI10473)0.12100.17210.14200.163 1NOx control scenario 3 - SCR (wzI10474)0.10100.14710.12200.134 1SO2 Control Scenario 1 - Lower Sulfur Coal (wzI10475)0.19500.22610.19900.203 1SO2 Control Scenario 2 - Dry Lime Injection (wzI10476)0.16600.17100.14500.166 0SO2 Control Scenario 3 - Dry Trona Injection (wzI10477)0.15600.15900.13000.157 0SO2 control Scenario 4 - Spray Dry FGD (wzI10478)0.15000.14700.11400.146 0SO2 Control Scenario 5 - Wet FGD (wzI10479)0.14100.13700.10800.138 0NOx Scenario 1 + SO2 Scenario 3 (wzI10480)0.09300.10200.08900.093 0NOx Scenario 1 + SO2 Scenario 4 (wzI10481)0.08400.08500.06800.082 0NOx Scenario 1 + SO2 Scenario 5 (wzI10482)0.07700.07400.05800.074 0NOx Scenario 2 + SO2 Scenario 3 (wzI10483)0.07300.08600.07600.078 0NOx Scenario 2 + SO2 Scenario 4 (wzI10484)0.06400.06600.05700.064 0NOx Scenario 2 + SO2 Scenario 5 (wzI10485)0.05800.05600.04400.055 0ENVIRON SCENARIOSeBase (Riley + Pulp Dryers)0.31820.32730.26800.318 5DEQ - wzI104710.20710.24910.20800.224 2Riley (LNB w OFA) + Pulp Dryers0.22310.25520.20300.232 3DEQ - wzI104720.14100.18910.15400.174 1Riley (LNB & FGD) + Pulp Dryers0.17600.22210.12600.176 1DEQ - wzI104860.15800.22210.11500.158 1DEQ - wzI104840.06400.06600.05700.064 0d. Total number of days in the 3-year period that exceed 0.5 delta-deciviews.e. Scenarios below this line were modeled and compiled by Environ International Corporation under contract with TASCOControl Scenario (Model Run ID)Change in Visibility Compared Against 20% Best Days Natural Background ConditionsDelta-Deciview Value Larger Than 0.5 From One Year PeriodDelta-Deciview Value LargerThan 0.5 from 3 Year Period2003 2004 2005 2003-2005TASCO Nampa Riley Boiler BART Determination Modeling Results (Sawtooth Wilderness, ID)a. The 8thhighest delta-deciview for the calendar year.b. Total number of days in 1 year that exceeded 0.5 delta-deciviews.c. The 22ndhighest delta-deciview value for the 3-year period.