ANNUAL SULFUR DIOXIDE EMISSION REPORT

ANNUAL SULFUR DIOXIDE (SO2) EMISSION REPORT

PacifiCorp Company ID - 948

Carbon Power Plant Site ID - 10081

SUMMARY OF ANNUAL SO2 EMISSIONS SUBMITTED TO EPA FOR ACID RAIN PROGRAM

Component Company

ID ID Component 1999 2006

3974 01 Dry bottom tangentially fired utility boiler 1,826.50 3,345.97

3976 2 Dry bottom tangentially fired utility boiler 2,561.10 4,506.51

3974/8910 1 Dry bottom tangentially fired utility boiler-oil NA NA

3976/8911 2 Dry bottom tangentially fired utility boiler-oil NA NA

13687 12 Emergency diesel generator 0.003 0.006

13688 13 Emergency diesel fire pump 0.003 0.004

8912 14 Fly ash storage silo NA NA

8913 15 Bottom ash storage silo NA NA

5253 29 Ash transfer operations NA NA

5252 62 Coal transfer NA NA

Mobile

TOTAL

CHANGES IN MONITORING OR CALCULATION METHODS

Component Company

ID ID

3974 01

Component Company

ID ID

3976 02

Requirements and Instructions. The Flow Adjustment Factor calculated is 1.15.

Adjustment of 2006 emissions to be comparable to 1999 emissions:

The 2006 SO2 Emissions were adjusted using method 2 of the Sulfur Dioxide Milestone Inventory

Changed from Method 2 in 1999 to Method 2FH for 2006.

Component

Dry bottom tangentially fired utility boiler

Explanation of Change:

Requirements and Instructions. The Flow Adjustment Factor calculated is 1.17.

Adjustment of 2006 emissions to be comparable to 1999 emissions:

The 2006 SO2 Emissions were adjusted using method 2 of the Sulfur Dioxide Milestone Inventory

Changed from Method 2 in 1999 to Method 2FH for 2006

Component

Dry bottom tangentially fired utility boiler

Explanation of Change:

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Component Company

ID ID Component

8910 01

Component Company

ID ID

8911 02

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Dry bottom tangentially fired utility boiler

Explanation of Change:

NA, emissions are included in the CEM value for this Unit.

Component

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Dry bottom tangentially fired utility boiler

Explanation of Change:

NA, emissions are included in the CEM value for this Unit.

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Component Company

ID ID

13687 12

Component Company

ID ID Component

13688 13

Component Company

ID ID Component

8912 14

Adjustment of 2006 emissions to be comparable to 1999 emissions:

There are no SO2 emissions from this source.

Fly ash storage silo

Explanation of Change:

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Emergency diesel fire pump Unit #2

Explanation of Change:

No changes, all values were calculated using AP-42 factors.

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Explanation of Change:

No changes, all values were calculated using AP-42 factors.

Component

Emergency diesel generator Unit #1

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Component Company

ID ID Component

8913 15

Component Company

ID ID Component

5253 29

Component Company

ID ID Component

5252 62

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Coal transfer

Explanation of Change:

There are no SO2 emissions from this source.

Adjustment of 2006 emissions to be comparable to 1999 emissions:

There are no SO2 emissions from this source.

Ash transfer operations

Explanation of Change:

Adjustment of 2006 emissions to be comparable to 1999 emissions:

Bottom ash storage silo

Explanation of Change:

There are no SO2 emissions from this source.

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Actuals Change Adjusted

2859.6 486.37 3,345.97

3918.406 588.10 4,506.51

0.2 0 0.20

0.294 0 0.29

0.006 0 0.01

0.004 0 0.00

0 0.00

0 0.00

0 0.00

0 0.00

0.472 0 0.47

6778.982 1074.465 7853.447

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Carbon

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ANNUAL SULFUR DIOXIDE EMISSION REPORT

Carbon

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