(lb/hr) (tpy) Ave Incremental (from previous)

OFA LNB+OFA (baseline) 0.220 646 2,576

............................................................ SNCR+LNB+OFA 0.170 500 1,991 585 1,538,824 2,630

............... SCR+LNB+OFA 0.070 206 820 1,756 8,987,423 5,118 6,361

OFA LNB+OFA (baseline) 0.220 644 2,427

............................................................ SNCR+LNB+OFA 0.170 498 1,876 551 1,520,967 2,760

............... SCR+LNB+OFA 0.070 205 772 1,655 8,931,506 5,397 6,712

OFA LNB+OFA (baseline) 0.220 939 3,825

............................................................ SNCR+LNB+OFA 0.170 725 2,955 870 2,031,367 2,335

............... SCR+LNB+OFA 0.070 299 1,217 2,608 12,409,860 4,758 5,972



### Table 19 - Cholla Units 2, 3, and 4: EPA's Control Cost Summary(CH2M HILL)

Control Option

NA; LNB+OFA is the currently installed technology

Emission Factor (lb/MMBtu) Emission Rate Emissions removed (tpy) Annual cost

($/yr) Cost-effectiveness ($/ton)

**Cholla 2** NA; LNB+OFA is the currently installed technology

**Cholla 3** NA; LNB+OFA is the currently installed technology

**Cholla 4**

090000648116a0e9.xlsx 11/16/2012(lb/hr) (tpy) Ave Incremental (from previous)

OFA LNB+OFA (baseline) 0.220 646 2,576

............................................................ SNCR+LNB+OFA 0.170 500 1,991 585 3,399,547 5,811

............... SCR+LNB+OFA 0.070 206 820 1,756 14,264,322 8,123 9,278

OFA LNB+OFA (baseline) 0.220 644 2,427

............................................................ SNCR+LNB+OFA 0.170 498 1,876 551 3,316,669 6,019

............... SCR+LNB+OFA 0.070 205 772 1,655 14,115,493 8,529 9,782

OFA LNB+OFA (baseline) 0.220 939 3,825

............................................................ SNCR+LNB+OFA 0.170 725 2,955 870 4,907,315 5,641

............... SCR+LNB+OFA 0.070 299 1,217 2,608 19,295,888 7,399 8,279 NA; LNB+OFA is the currently installed technology 

### Table 19 - Cholla Units 2, 3, and 4: EPA's Control Cost Summary(APS)

Control Option Emission Factor (lb/MMBtu) Emission Rate Emissions removed (tpy) Annual cost

($/yr) Cost-effectiveness ($/ton)

**Cholla 2** NA; LNB+OFA is the currently installed technology

**Cholla 3** NA; LNB+OFA is the currently installed technology

**Cholla 4**

090000648116a0e9.xlsx 11/16/2012(lb/hr) (tpy) Ave Incremental (from previous)

OFA LNB+OFA (baseline) 0.295 892 2,890

............................................................ SNCR+LNB+OFA 0.210 624 2,023 867 2,482,318 2,863

............... SCR+LNB+OFA 0.050 151 490 2,400 7,475,028 3,115 3,257

OFA LNB+OFA (baseline) 0.254 885 2,908

............................................................ SNCR+LNB+OFA 0.180 620 2,036 872 2,530,511 2,902

............... SCR+LNB+OFA 0.050 174 572 2,336 8,113,131 3,473 3,813

OFA LNB+OFA (baseline) 0.260 1,144 3,609

............................................................ SNCR+LNB+OFA 0.180 801 2,526 1,083 3,185,049 2,941

............... SCR+LNB+OFA 0.050 220 694 2,915 9,894,796 3,394 3,663 NA; LNB+OFA is the currently installed technology 

### Table 19 - Cholla Units 2, 3, and 4: EPA's Control Cost Summary(EPA)

Control Option Emission Factor (lb/MMBtu) Emission Rate Emissions removed (tpy) Annual cost

($/yr) Cost-effectiveness ($/ton)

**Cholla 2** NA; LNB+OFA is the currently installed technology

**Cholla 3** NA; LNB+OFA is the currently installed technology

**Cholla 4**

090000648116a0e9.xlsx 11/16/2012Unit 2 LNB/SOFA* SNCR** SCR** NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 91% 91% 91% MMBTU/yr 23,420,561 23,420,561 23,420,561 Tons NOx Emitted 2,576 1,991 820 Tons NOx Removed/yr N/A 585 1,756 Incremental Tons NOx Removed/yr N/A N/A 1,171 Total First Year Cost N/A$1,538,824 $8,987,423 Incremental First Year Cost N/A N/A$7,448,599 $/T of NOx N/A $2,630 $5,118 Incremental $/T of NOx N/A N/A $6,361

Unit 3 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 86% 86% 86% MMBTU/yr 22,065,914 22,065,914 22,065,914 Tons NOx Emitted 2,427 1,876 772 Tons NOx Removed/yr N/A 551 1,655 Incremental Tons NOx Removed/yr N/A N/A 1,104 Total First Year Cost N/A$1,520,967 $8,931,506 Incremental First Year Cost N/A N/A$7,410,539 $/T of NOx N/A $2,760 $5,397 Incremental $/T of NOx N/A N/A $6,712



# Table 19 Cholla (CH2M HIL)

Unit 4 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 93% 93% 93% MMBTU/yr 34,770,542 34,770,542 34,770,542 Tons NOx Emitted 3,825 2,955 1,217 Tons NOx Removed/yr N/A 870 2,608 Incremental Tons NOx Removed/yr N/A N/A 1,738 Total First Year Cost N/A$2,031,367$12,409,860 Incremental First Year Cost N/A N/A$10,378,493 $/T of NOx N/A $2,335 $4,758 Incremental $/T of NOx N/A N/A $5,972

*Assume LNB/SOFA is baseline **Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs

090000648116a0e9.xlsx 11/16/2012Unit 2 LNB/SOFA* SNCR** SCR** NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 91% 91% 91% MMBTU/yr 23,420,561 23,420,561 23,420,561 Tons NOx Emitted 2,576 1,991 820 Tons NOx Removed/yr N/A 585 1,756 Incremental Tons NOx Removed/yr N/A N/A 1,171 Total First Year Cost N/A$3,399,547$14,264,322 Incremental First Year Cost N/A N/A$10,864,775 $/T of NOx N/A $5,811 $8,123 Incremental $/T of NOx N/A N/A $9,278

Unit 3 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 86% 86% 86% MMBTU/yr 22,065,914 22,065,914 22,065,914 Tons NOx Emitted 2,427 1,876 772 Tons NOx Removed/yr N/A 551 1,655 Incremental Tons NOx Removed/yr N/A N/A 1,104 Total First Year Cost N/A$3,316,669$14,115,493 Incremental First Year Cost N/A N/A$10,798,825 $/T of NOx N/A $6,019 $8,529 Incremental $/T of NOx N/A N/A $9,782



# Table 19 Cholla (APS)

Unit 4 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2200 0.1700 0.0700 Capacity Factor 93% 93% 93% MMBTU/yr 34,770,542 34,770,542 34,770,542 Tons NOx Emitted 3,825 2,955 1,217 Tons NOx Removed/yr N/A 870 2,608 Incremental Tons NOx Removed/yr N/A N/A 1,738 Total First Year Cost N/A$4,907,315$19,295,888 Incremental First Year Cost N/A N/A$14,388,573 $/T of NOx N/A $5,641 $7,399 Incremental $/T of NOx N/A N/A $8,279

*Assume LNB/SOFA is baseline **Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs

090000648116a0e9.xlsx 11/16/2012Unit 2 LNB/SOFA* SNCR** SCR** NOx Emissions Rate 0.2950 0.2100 0.0500 Capacity Factor 74% 74% 74% MMBTU/yr 19,589,813 19,589,813 19,589,813 Tons NOx Emitted 2,890 2,023 490 Tons NOx Removed/yr N/A 867 2,400 Incremental Tons NOx Removed/yr N/A N/A 1,533 Total First Year Cost N/A$2,482,318 $7,475,028 Incremental First Year Cost N/A N/A$4,992,710 $/T of NOx N/A $2,863 $3,115 Incremental $/T of NOx N/A N/A $3,257

Unit 3 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2540 0.1800 0.0500 Capacity Factor 75% 75% 75% MMBTU/yr 22,863,600 22,863,600 22,863,600 Tons NOx Emitted 2,908 2,036 572 Tons NOx Removed/yr N/A 872 2,336 Incremental Tons NOx Removed/yr N/A N/A 1,464 Total First Year Cost N/A$2,530,511 $8,113,131 Incremental First Year Cost N/A N/A$5,582,620 $/T of NOx N/A $2,902 $3,473 Incremental $/T of NOx N/A N/A $3,813



# Table 19 Cholla (EPA)

Unit 4 LNB/SOFA* SNCR** SCR**

NOx Emissions Rate 0.2600 0.1800 0.0500 Capacity Factor 72% 72% 72% MMBTU/yr 27,745,373 27,745,373 27,745,373 Tons NOx Emitted 3,609 2,526 694 Tons NOx Removed/yr N/A 1,083 2,915 Incremental Tons NOx Removed/yr N/A N/A 1,832 Total First Year Cost N/A$3,185,049 $9,894,796 Incremental First Year Cost N/A N/A$6,709,747 $/T of NOx N/A $2,941 $3,394 Incremental $/T of NOx N/A N/A $3,663

*Assume LNB/SOFA is baseline **Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs

090000648116a0e9.xlsx 11/16/2012Unit 2CH2M HILL BaseLNB/SOFA SNCR* SCR* NOx Emissions Rate 0.5000 0.2200 0.1700 0.0700 Capacity Factor 91% 91% 91% 91% MMBTU/yr 23,420,561 23,420,561 23,420,561 23,420,561 Tons NOx Emitted 5,890 2,576 1,991 820 Tons NOx Removed/yr 0 3,314 585 1,756 Total First Year Cost** N/A $635,252 $1,538,824 $8,987,423 $/T of NOx N/A $192 $2,630 $5,118

Unit 3CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.4100 0.2200 0.1700 0.0700 Capacity Factor 86% 86% 86% 86% MMBTU/yr 22,065,914 22,065,914 22,065,914 22,065,914 Tons NOx Emitted 4,524 2,427 1,876 772 Tons NOx Removed/yr 0 2,097 551 1,655 Total First Year Cost** N/A $635,252 $1,520,967 $8,931,506 $/T of NOx N/A $303 $2,760 $5,397

Unit 4CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.4200 0.2200 0.1700 0.0700 Capacity Factor 93% 93% 93% 93% MMBTU/yr 34,770,542 34,770,542 34,770,542 34,770,542 Tons NOx Emitted 7,215 3,825 2,955 1,217 Tons NOx Removed/yr 0 3,390 870 2,608 Total First Year Cost** N/A $820,294 $2,031,367$12,409,860 $/T of NOx N/A $242 $2,335 $4,758

*Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs **9.51% CRF 

# Cholla CH2M HILL NOx BART Emissions/Costs

090000648116a0e9.xlsx 11/16/2012Unit 2CH2M HILL BaseLNB/SOFA SNCR* SCR* NOx Emissions Rate 0.5000 0.2200 0.1700 0.0700 Capacity Factor 91% 91% 91% 91% MMBTU/yr 23,420,561 23,420,561 23,420,561 23,420,561 Tons NOx Emitted 5,890 2,576 1,991 820 Tons NOx Removed/yr 0 3,314 585 1,756 Total First Year Cost** N/A $799,207 $3,399,547$14,264,322 $/T of NOx N/A $241 $5,811 $8,123

Unit 3CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.4100 0.2200 0.1700 0.0700 Capacity Factor 86% 86% 86% 86% MMBTU/yr 22,065,914 22,065,914 22,065,914 22,065,914 Tons NOx Emitted 4,524 2,427 1,876 772 Tons NOx Removed/yr 0 2,097 551 1,655 Total First Year Cost** N/A $752,482 $3,316,669$14,115,493 $/T of NOx N/A $359 $6,019 $8,529

Unit 4CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.4200 0.2200 0.1700 0.0700 Capacity Factor 93% 93% 93% 93% MMBTU/yr 34,770,542 34,770,542 34,770,542 34,770,542 Tons NOx Emitted 7,215 3,825 2,955 1,217 Tons NOx Removed/yr 0 3,390 870 2,608 Total First Year Cost** N/A $898,165 $4,907,315$19,295,888 $/T of NOx N/A $265 $5,641 $7,399

*Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs 

# Cholla APS NOx BART Emissions/Costs

**13.40% FCR (APS official rate)

090000648116a0e9.xlsx 11/16/2012Unit 2CH2M HILL BaseLNB/SOFA SNCR* SCR* NOx Emissions Rate 0.2950 0.2950 0.2100 0.0500 Capacity Factor 74% 74% 74% 74% MMBTU/yr 19,589,813 19,589,813 19,589,813 19,589,813 Tons NOx Emitted 2,890 2,890 2,023 490 Tons NOx Removed/yr N/A 0 867 2,400 Total First Year Cost** N/A N/A $2,482,318 $7,475,028 $/T of NOx N/A N/A $2,863 $3,115

Unit 3CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.2540 0.2540 0.1800 0.0500 Capacity Factor 75% 75% 75% 75% MMBTU/yr 22,863,600 22,863,600 22,863,600 22,863,600 Tons NOx Emitted 2,908 2,908 2,036 572 Tons NOx Removed/yr N/A 0 872 2,336 Total First Year Cost** N/A N/A $2,530,511 $8,113,131 $/T of NOx N/A N/A $2,902 $3,473

Unit 4CH2M HILL BaseLNB/SOFA SNCR* SCR*

NOx Emissions Rate 0.2600 0.2600 0.1800 0.0500 Capacity Factor 72% 72% 72% 72% MMBTU/yr 27,745,373 27,745,373 27,745,373 27,745,373 Tons NOx Emitted 3,609 3,609 2,526 694 Tons NOx Removed/yr N/A 0 1,083 2,915 Total First Year Cost** N/A N/A $3,185,049 $9,894,796 $/T of NOx N/A N/A $2,941 $3,394

*Following LNB/SOFA, and excluding LNB/SOFA NOx reductions and costs **9.51% CRF 

# Cholla EPA NOx BART Emissions/Costs

090000648116a0e9.xlsx 11/16/2012Unit 2 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* Materials Design Supply $2,100,000 $4,500,000$30,000,000 $1,906,285 $2,577,412$36,187,449 $0 $5,778,000$53,940,000 Construction 50%$1,050,000 $2,250,000$15,000,000 $2,385,340 $8,110,283$18,093,725 $0 $0 $0 Balance of Plant 50%$1,050,000 $2,250,000$15,000,000 incl incl$18,093,725 $0 $0 $0 Electrical 5% $105,000 $225,000 $1,500,000 incl incl$1,809,372 $0 $0 $0 Owner's Costs 10% $210,000 $450,000 $3,000,000 $620,343 $1,209,806 $3,618,745 $0 $0 $0 Surcharge 16% $336,000 $720,000 $4,800,000 $156,741 $1,520,818 $1,757,624 $0 $0 $0 AFUDC 12% $252,000 $540,000 $3,600,000 incl$1,399,780 $9,322,098 $0 $0 $0 Subtotal $5,103,000$10,935,000$72,900,000 $5,068,709$14,818,098$88,882,738 $0 $5,778,000$53,940,000 Contingency 15% $315,000 $675,000 $4,500,000 $0 $1,189,718 $5,428,000 $0 $0 $0 TOTAL $5,418,000$11,610,000$77,400,000 $5,068,709$16,007,816$94,310,738 $0 $5,778,000$53,940,000

Unit 3 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR*

Materials Design Supply $2,100,000 $4,500,000$30,000,000 $1,686,411 $2,633,412$36,187,449 $0 $6,246,000$60,564,000 Construction 50%$1,050,000 $2,250,000$15,000,000 $2,162,396 $7,958,083$18,093,725 $0 $0 $0 Balance of Plant 50%$1,050,000 $2,250,000$15,000,000 incl incl$18,093,725 $0 $0 $0 Electrical 5% $105,000 $225,000 $1,500,000 incl incl$1,809,372 $0 $0 $0 Owner's Costs 10% $210,000 $450,000 $3,000,000 $469,524 $1,222,006 $3,618,745 $0 $0 $0 Surcharge 16% $336,000 $720,000 $4,800,000 $401,680 $1,518,367 $1,757,624 $0 $0 $0 AFUDC 12% $252,000 $540,000 $3,600,000 incl $875,732 $8,628,728 $0 $0 $0 Subtotal $5,103,000$10,935,000$72,900,000 $4,720,012$14,207,599$88,189,368 $0 $6,246,000$60,564,000 Contingency 15% $315,000 $675,000 $4,500,000 $0 $1,181,718 $5,428,000 $0 $0 $0 TOTAL $5,418,000$11,610,000$77,400,000 $4,720,012$15,389,318$93,617,368 $0 $6,246,000$60,564,000

Unit 4 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR*

Materials Design Supply $2,650,000 $5,700,000$41,000,000 $2,178,927 $4,026,846$49,456,180 $0 $8,280,000$73,859,000 Construction 50%$1,325,000 $2,850,000$20,500,000 $2,868,810$12,452,633$24,728,090 $0 $0 $0 Balance of Plant 50%$1,325,000 $2,850,000$20,500,000 incl incl$24,728,090 $0 $0 $0 Electrical 5% $133,000 $285,000 $2,050,000 incl incl$2,472,809 $0 $0 $0 Owner's Costs 10% $265,000 $570,000 $4,100,000 $321,210 $1,769,815 $4,945,618 $0 $0 $0 Surcharge 16% $424,000 $912,000 $6,560,000 $65,125 $1,897,074 $2,402,087 $0 $0 $0 AFUDC 12% $318,000 $684,000 $4,920,000 incl$1,684,083$10,309,193 $0 $0 $0 Subtotal $6,440,000$13,851,000$99,630,000 $5,434,071$21,830,451$119,042,067 $0 $8,280,000$73,859,000 Contingency 15% $398,000 $855,000 $6,150,000 $0 $1,825,692 $7,418,427 $0 $0 $0 TOTAL $6,838,000$14,706,000$105,780,000 $5,434,071$23,656,143$126,460,494 $0 $8,280,000$73,859,000

*Following LNB/SOFA, and excluding LNB/SOFA costs EPA

EPA

EPA 

### Cholla CH2M HILL vs. APS vs. EPA NOx BART Capital

CH2M HILL APS APS CH2M HILL

CH2M HILL APS

090000648116a0e9.xlsx 11/16/2012Unit 2 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* Operating Labor $30,000 $30,000 $45,000 $30,000 $63,000 $45,000 $0 $1,936,916 $2,383,481 Maintenance Material $60,000 $60,000 $90,000 $60,000 $110,000 $90,000 $0 $0 $0 Maintenance Labor $30,000 $30,000 $45,000 $30,000 incl $45,000 $0 $0 $0 Administrative Labor $0 $0 $0 $0 $0 $0 $0 $0 $0 Makeup Water $0 $0 $0 $0 $2,000 $0 $0 $0 $0 Reagent $0 $195,139 $398,813 $0 $1,061,000 $398,813 $0 $0 $0 Catalyst $0 $0 $450,000 $0 $0 $450,000 $0 $0 $0 Waste Disposal $0 $0 $0 $0 $0 $0 $0 $0 $0 Electric Power $0 $119,574 $597,870 $0 $18,500 $597,870 $0 $0 $0 TOTAL $120,000 $434,713 $1,626,683 $120,000 $1,254,500 $1,626,683 $0 $1,936,916 $2,383,481

Unit 3 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR*

Operating Labor $30,000 $30,000 $45,000 $30,000 $63,000 $45,000 $0 $1,940,933 $2,396,330 Maintenance Material $60,000 $60,000 $90,000 $60,000 $110,000 $90,000 $0 $0 $0 Maintenance Labor $30,000 $30,000 $45,000 $30,000 incl $45,000 $0 $0 $0 Administrative Labor $0 $0 $0 $0 $0 $0 $0 $0 $0 Makeup Water $0 $0 $0 $0 $2,000 $0 $0 $0 $0 Reagent $0 $183,852 $375,746 $0 $1,061,000 $375,746 $0 $0 $0 Catalyst $0 $0 $450,000 $0 $0 $450,000 $0 $0 $0 Waste Disposal $0 $0 $0 $0 $0 $0 $0 $0 $0 Electric Power $0 $113,004 $565,020 $0 $18,500 $565,020 $0 $0 $0 TOTAL $120,000 $416,856 $1,570,766 $120,000 $1,254,500 $1,570,766 $0 $1,940,933 $2,396,330

Unit 4 LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR* LNB/SOFA SNCR* SCR*

Operating Labor $42,500 $42,500 $63,750 $42,500 $71,245 $63,750 $0 $2,403,476 $2,923,047 Maintenance Material $85,000 $85,000 $127,500 $85,000 $124,396 $127,500 $0 $0 $0 Maintenance Labor $42,500 $42,500 $63,750 $42,500 incl $63,750 $0 $0 $0 Administrative Labor $0 $0 $0 $0 $0 $0 $0 $0 $0 Makeup Water $0 $0 $0 $0 $2,262 $0 $0 $0 $0 Reagent $0 $289,706 $592,084 $0 $1,518,569 $592,084 $0 $0 $0 Catalyst $0 $0 $637,500 $0 $0 $637,500 $0 $0 $0 Waste Disposal $0 $0 $0 $0 $0 $0 $0 $0 $0 Electric Power $0 $173,120 $865,598 $0 $20,921 $865,598 $0 $0 $0 TOTAL $170,000 $632,826 $2,350,182 $170,000 $1,737,392 $2,350,182 $0 $2,403,476 $2,923,047

*Following LNB/SOFA, and excluding LNB/SOFA costs CH2M HILL APS EPA 

### Cholla CH2M HILL vs. APS vs. EPA NOx BART O&M

CH2M HILL APS EPA

CH2M HILL APS EPA

090000648116a0e9.xlsx 11/16/20122 3 Com (2&3) 2+Com 3+Com 4* Com (4)* 4+Com*

Operating labor $38,000 $38,000 $50,000 $63,000 $63,000 $42,973 $28,272 $71,245 Maintenance labor and materials $66,000 $66,000 $88,000 $110,000 $110,000 $74,637 $49,758 $124,396 Reagent $1,061,000$1,061,000 $0$1,061,000$1,061,000$1,518,569 $0$1,518,569 Fly Ash diposal $0 $0 $0 $0 $0 $0 $0 $0 Auxiliary Power $2,000 $2,000 $33,000 $18,500 $18,500 $2,262 $18,659 $20,921 Water $0 $0 $4,000 $2,000 $2,000 $0 $2,262 $2,262 $1,167,000$1,167,000 $175,000$1,254,500$1,254,500$1,638,441 $98,951$1,737,392

*Unit 4 costs ratioed from Units 2&3 costs in B&V study

-Labor, maintenance, power, and water from share % -Reagent and fly ash disposal from MW's 

# Cholla SNCR O&M Calculations (calculated from B&V SNCR Study)

090000648116a0e9.xlsx 11/16/2012