### TABLE 2-17 DEVIATION REPORTING AND CEMS DATA ICR Part 2, Questions 9 - 11

9. Type of deviation10. Do dev. reports reporting req'd forinclude malfunctions Plant NamePlant Code permit violations?or non-compliance?
1
2
1
2
3
1
2
3
Sandow No 4 6648 4
1 YES. See Hg and PM CEMS attachments. see attachment 2 N/A, CEMS not running as of 1/4/10. Not Applicable
5A

5B 11. Are Hg or PM CEMS data available that are not already being sent to agency (and

meet QA/QC procedures)? * Time period for which Hg CEMS data are available Boiler ID
Big Brow n 3497

semi-annual Title V reports Yes,

both are included in the semi-annual Title V reports NO.

Hg CEMS data do not meet QA/QC procedures. These plants have no PM CEMS equipment. Not Applicable Martin Lake

NO. PM CEMS data were already submitted to EPA Region 6. Hg CEMS data do not meet

QA/QC procedures. Not Applicable

* EPA's 12/24/09 Section 114 Letter, footnote 46: Where units are monitored by CEMS (either following CAMR, State, or NIST QA/QC procedures), and w

here data are available, EPA requests that these CEMS data be submitted by the respondent. The respondent should also mark the periods of SSM in the data sets.

6146

Monticello 6147

Oak Grove 6180

Sandow Station52071

Page 1 of 75

## TABLE 2-18 EMISSIONS TESTING GENERAL INFORMATION ICR Part 2, Question 8

Test Was any test Is this report for Report Report Testing Dates location before aWas testingmalfunx. or periods Fuel Facility Report No. / ID Type Description Start End Unit(s) control device? during SSMof noncompliance? Type %mass %Btu

Oak Grove Compliance Compliance 12/19/200912/20/2009 Unit 1 No No No coal - lignite 100 100 coal - lignite 100 100 coal - lignite 100 100

Sandow Station Compliance Compliance 10/28/200911/5/2009Boilers 5A, 5B * No No No coal - lignite 100 100

* Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Sandow Station Vendor Vendor 10/26/200911/5/2009Boilers 5A, 5B * Yes No No coal - lignite 100 100 Guarantee Guarantee

* Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Martin Lake Study 7/24/20089/11/2008 3 Yes No No coal - lignite66-89 (nom.)66-89 (nom.) coal - subbitum.11-34 (nom.)11-34 (nom.)

Big Brown Study 11/7/200712/4/2007 1 Yes No No coal - lignite 70 (nom.)70 (nom.) coal - subbitum.30 (nom.)30 (nom.)

Monticello Study 9/29/200710/29/2007 2 Yes No No lignite & subbitum.

4. Optimizing ACI for Mercury Emission Control; July-Sept 2008 Testing Effect of ACI on Mercury Control

Effect of ACI on Mercury Control

Effect of ACI on Mercury Control 5. The Effect of ACI on Mercury Emission Control at Luminant's Big Brown Plant Unit 1; Nov-Dec 2007 Testing

6. The Effect of ACI on Mercury Emission Control at Luminant's Monticello Plant Unit 2; Sept-Oct 2007 Testing see following table 1. Compliance Test Report; Dec 2009 Testing

3. Source Emissions Survey, Inlet Ducts and Stacks; Oct-Nov 2009 Testing 2. Source Emissions Survey, Stacks; OctNov 2009 Testing

Page 2 of 75

## TABLE 2-18 EMISSIONS TESTING GENERAL INFORMATION ICR Part 2, Question 8

Test Was any test Is this report for Report Report Testing Dates location before aWas testingmalfunx. or periods Fuel Facility Report No. / ID Type Description Start End Unit(s) control device? during SSMof noncompliance? Type %mass %Btu

Big Brown Study 1/18/20064/8/2006 2 Yes No No coal - lignite 70 (nom.)70 (nom.) coal - subbitum.30 (nom.)30 (nom.)

100% subbitum. for last 9 days of study 100 100

Sandow No 48. Flow Rate and SO2 Study; April 2007

Testing SO2 stratification test, Scrubber A outlet duct 4/18/20074/18/2007 4 No No No coal - lignite 100 100 SO2 stratification test, Scrubber B inlet/outlet ducts4/17/20074/18/2007 4 Yes No No coal - lignite 100 100 SO2 stratification test, Scrubber C inlet/outlet ducts4/17/20074/18/2007 4 Yes No No coal - lignite 100 100 S02 removal efficiency

test, 15% by pass, 12 pumps 4/18/20074/18/2007 4 Yes No No coal - lignite 100 100 S02 removal efficiency

test, 15% by pass, 10 pumps 4/18/20074/18/2007 4 Yes No No coal - lignite 100 100 S02 removal efficiency

test, 0% by pass, 12 pumps 4/18/20074/18/2007 4 Yes No No coal - lignite 100 100

Monticello Study 8/24/20068/24/2006 2 No No No lignite & subbitum. NR NR 8/23/20068/23/2006 3 No No No lignite & subbitum. NR NR

Monticello Study 10/25/200510/26/2005 3 Yes No No coal - lignite 50 (nom.)50 (nom.) coal - subbitum.50 (nom.)50 (nom.)

Big Brown Study CEM validation 10/25/200511/10/2005 1 No No No coal - lignite 70 (nom.)70 (nom.) coal - subbitum.30 (nom.)30 (nom.)

Monticello Study Baseline emissions data10/8/200510/17/2005 1 Yes No No lignite & subbitum.

Martin Lake Study Baseline emissions data10/20/200510/28/2005 2 Yes No No lignite & subbitum.

7. Field Testing of ACI Options for Mercury Control at Big Brown; Jan-April 2006 Testing

10. Testing of Units 2 and 3 Stacks at Monticello; Aug 2006 Testing

11. Effect of NH3 Conditioning on Mercury Emissions at Monticello Unit 3; Oct 2005 Testing

12. Thermo CEM Field Evaluation at Big Brown Unit 1; Oct-Nov 2005 Testing

13. Multi-Method Mercury Speciation & Acid Gas Baseline Studies forMonticello Unit 1& Martin Lake Unit 2; Oct 2005 Testing Effects of NH3 conditioning on mercury

removal

13. Multi-Method Mercury Speciation & Acid Gas Baseline Studies for Monticello Unit 1 &Martin Lake Unit 2; Oct 2005 Testing Flow Rate and SO2 Study

see following tables

Effect of ACI on Mercury Control

Effects of SO2 and H2SO4 emissions on measurement of PM concentrations

see following tables

Page 3 of 75

## TABLE 2-18 EMISSIONS TESTING GENERAL INFORMATION ICR Part 2, Question 8

Test Was any test Is this report for Report Report Testing Dates location before aWas testingmalfunx. or periods Fuel Facility Report No. / ID Type Description Start End Unit(s) control device? during SSMof noncompliance? Type %mass %Btu

Big Brown Study 1/8/20051/18/2005 1 No No No lignite & subbitum. NR NR

Sandow No 4 Study 4 Yes No No coal - lignite 100 100

Response for all Luminant ICR Part II stack tests: Question 8d: Were any of these test reports conducted when use of other materials(s) or non-fossil fuels were fired in the boiler?NO

Notes and Acronyms Report #9 was reviewed and found to have no tabulated test data, thus is omitted from the ICR submission. ACI = Activated Carbon Injection NR = Not Reported NC = Not Calculated NA = Not Analy

zed15. Air Heater Inlet, ESP Inlet, and Stack Sampling; Feb 2005 Testing Test for PM, PM10, SO2, and H2SO4 Feb 2005. Start and end dates are not available. Evaluation of mercury emissions Unit 2; Oct 2005 Testing

14. Mercury Measurements at Monticello Units 1 & 3, Martin Lake Unit 2, &Big Brown Unit 1, (only Big Brown testing was in 2005)

Page 4 of 75

### Facility Report No. / ID

Oak Grove

Sandow Station

* Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Sandow Station

* Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Martin Lake

Big Brown

Monticello4. Optimizing ACI for Mercury Emission

Control; July-Sept 2008 Testing

5. The Effect of ACI on Mercury Emission Control at Luminant's Big Brown Plant Unit 1; Nov-Dec 2007 Testing

6. The Effect of ACI on Mercury Emission Control at Luminant's Monticello Plant Unit 2; Sept-Oct 2007 Testing 1. Compliance Test Report; Dec 2009 Testing

3. Source Emissions Survey, Inlet Ducts and Stacks; Oct-Nov 2009 Testing 2. Source Emissions Survey, Stacks; OctNov 2009 Testing 

## TABLE 2-19 EMISSIONS TESTING SAMPLING PORT DATA ICR Part 2, Question 8

Scrubber bypass questions Description of If Yes, Sample portPercent bypass testing location Describe orientation during test

SP06 Stack 1 No - - 100% No Not Applicable

SP07 Stack 5A No - - 100% No Not Applicable SP14 Stack 5B

SP07 Stack 5A No - - 100% Yes-Inlet Ducts N/A - no scrubber by pass SP14 Stack 5B - - No-Stacks Not Applicable SP03 5A Scrubber Inlet SP10 5B Scrubber Inlet

SP15 Boiler Outlet No - - 100% No Not Applicable SP21 Stack 3 No - - 14% to 83% No Not Applicable

SP01 Boiler Outlet No - - 100% No Not Applicable SP04 ESP Outlet No - - 100% No Not Applicable SP07 Stack 1 No - - 100% No Not Applicable

SP08 Boiler Outlet No - - 100% No Not Applicable SP14 Stack 2 No - - 100% No Not Applicable Is sample point directly before SO2 scrubber? Sample port for testing (as defined in Part 1) Any special port placement not reflected in Part 1 configuration? Percent of flue gas flow to this sample port

Page 5 of 75

### Facility Report No. / ID

Big Brown

Sandow No 48. Flow Rate and SO2 Study; April 2007

Testing

Monticello

Monticello

Big Brown

Monticello

Martin Lake7. Field Testing of ACI Options for

Mercury Control at Big Brown; Jan-April 2006 Testing

10. Testing of Units 2 and 3 Stacks at Monticello; Aug 2006 Testing

11. Effect of NH3 Conditioning on Mercury Emissions at Monticello Unit 3; Oct 2005 Testing

12. Thermo CEM Field Evaluation at Big Brown Unit 1; Oct-Nov 2005 Testing

13. Multi-Method Mercury Speciation & Acid Gas Baseline Studies forMonticello Unit 1& Martin Lake Unit 2; Oct 2005 Testing

13. Multi-Method Mercury Speciation & Acid Gas Baseline Studies for Monticello Unit 1 &Martin Lake Unit 2; Oct 2005 Testing 

## TABLE 2-19 EMISSIONS TESTING SAMPLING PORT DATA ICR Part 2, Question 8

Scrubber bypass questions Description of If Yes, Sample portPercent bypass testing location Describe orientation during test Is sample point directly before SO2 scrubber? Sample port for testing (as defined in Part 1) Any special port placement not reflected in Part 1 configuration? Percent of flue gas flow to this sample port

- - B Side ESP Inlet Yes B Side ESP Inlet 50% No Not Applicable

- - Fabric Filter 2-4 Inlet Yes Fabric Filter 2-4 Inlet 50% No Not Applicable

- - Fabric Filter 2-4 Outlet Yes Fabric Filter 2-4 Outlet 25% No Not Applicable

- - Scrubber A outlet duct Yes Scrubber A outlet duct 100% No NR

- - Scrubber B inlet/outlet ducts Yes Scrubber B inlet/outlet ducts NR Yes NR

- - Scrubber C inlet/outlet ducts Yes Scrubber C inlet/outlet ducts NR Yes NR

SP06 & SP07 Scrubber inlet & outlet No - - 85% Yes 15%

SP06 & SP07 Scrubber inlet & outlet No - - 85% Yes 15%

SP06 & SP07 Scrubber inlet & outlet No - - 100% Yes 0%

SP14 Stack 2 No - - 100% No Not Applicable SP21 Stack 3A No - - 100% No Not Applicable

- - ESP Inlet-C; ESP Outlet-D Yes ESP Inlet-C; ESP Outlet-D 25% ea. No Not Applicable

SP07 Stack 1 No - - 100% No Not Applicable

SP03 ESP Inlet No - - 100% No Not Applicable SP04 ESP Outlet No - - 100% No Not Applicable SP07 Stack 2 No - - 100% No Not Applicable

SP14 Stack 2 No - - 100% No Not Applicable SP10 ESP Inlet No - - 100% No Not Applicable SP12 SO2 Scrubber Inlet No - - 78% Yes D * 22% A - first sampling point after by pass and before scrubber; second after scrubber and before by pass

Page 6 of 75

### Facility Report No. / ID

Big Brown

Sandow No 4

Response for all Luminant ICR Part II stack tests: Question 8d: Were any of these test reports conducted when use of other materials(s) or non-fossil fuels were fired in the boiler?

Notes and Acronyms Report #9 was reviewed and found to have no tabulated test data, thus is omitted from the ICR submission. ACI = Activated Carbon Injection NR = Not Reported NC = Not Calculated NA = Not Analy

zed15. Air Heater Inlet, ESP Inlet, and Stack Sampling; Feb 2005 Testing Unit 2; Oct 2005 Testing

14. Mercury Measurements at Monticello Units 1 & 3, Martin Lake Unit 2, &Big Brown Unit 1, (only Big Brown testing was in 2005) 

## TABLE 2-19 EMISSIONS TESTING SAMPLING PORT DATA ICR Part 2, Question 8

Scrubber bypass questions Description of If Yes, Sample portPercent bypass testing location Describe orientation during test Is sample point directly before SO2 scrubber? Sample port for testing (as defined in Part 1) Any special port placement not reflected in Part 1 configuration? Percent of flue gas flow to this sample port

* D - first sampling point before by pass and scrubber; second after scrubber and by pass.

SP07 Stack 1 No - - 100% No Not Applicable

SP01 Boiler Outlet No - - 100% No Not Applicable SP04 ESP Inlet SP08 Stack 4

Page 7 of 75

### TABLE 2-20 EMISSIONS TESTING OPERATING DATA AND TEST METHODS ICR Part 2, Question 12

Notes for all reports: Net MWh during run testing was not available for any report. APK = Appendix K sorbent trap method OHM = Ontario Hydro Method CMM = Continuous Mercury Monitoring


## 1. Oak Grove Unit 1 Stack

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs

1 12/19/2009 7:01 8:25 1 Acids NR 1 - Acids 19.01 1,696,587 5.4 14.1 135 0.98 NR NR 1 12/19/2009 15:35 16:38 1 NOx, CO, SO2 800 1-NOx, CO, SO2 19.2 1,872,037 5.4 14.4 136 0.98 NR NR 1 12/19/2009 23:47 1:05 1 Hg 800 1 - Hg 19.2 1,906,010 5.5 14.3 135 0.98 NR NR 1 12/20/2009 12:57 13:57 1 THC, CH4 800 1 - THC, CH4 18.9 1,799,521 5.4 14.4 135 0.98 NR NR 1 12/20/2009 15:00 17:15 2 PM, Metals NR 1 - PM, Metals 19.35 1,754,261 5.48 14.33 135 0.98 NR NR Run 1 Avg800 Run 1 Avg19.13 1,805,683 5.4 14.3 135 0.98 NR NR

2 12/19/2009 9:04 10:28 1 Acids NR 2 - Acids 19.71 1,660,429 5.4 14.3 135 0.98 NR NR 2 12/19/2009 16:57 18:00 1 NOx, CO, SO2 800 2-NOx, CO, SO2 18.60 1,833,534 5.4 14.4 135 0.98 NR NR 2 12/20/2009 1:25 2:44 1 Hg 800 2 - Hg 18.60 1,865,655 5.5 14.3 135 0.98 NR NR 2 12/20/2009 15:06 16:06 1 THC, CH4 800 2 - THC, CH4 NR NR NR NR NR NR NR NR 2 12/20/2009 18:40 21:00 2 PM, acids, metals NR 2 - PM, Metals 18.90 1,771,964 5.5 14.3 136 0.98 NR NR Run 2 Avg800 Run 2 Avg18.95 1,782,895 5.4 14.3 135 0.98 NR NR

3 12/19/2009 10:56 12:09 1 Acids NR 3 - Acids 18.62 1,670,128 5.4 14.6 135 0.98 NR NR 3 12/19/2009 18:21 19:24 1 NOx, CO, SO2 800 3-NOx, CO, SO2 18.8 1,895,683 5.4 14.6 134 0.98 NR NR 3 12/20/2009 3:03 4:30 1 Hg 800 3 - Hg 18.4 1,865,738 5.5 14.3 133 0.98 NR NR 3 12/20/2009 16:25 17:25 1 THC, CH4 800 3 - THC, CH4 NR NR NR NR NR NR NR NR 3 12/20/2009 21:57 0:10 2 PM, acids, metals NR 3 - PM, Metals 18.42 1,795,645 5.51 14.21 135 0.98 NR NR Run 3 Avg800 Run 3 Avg18.56 1,806,799 5.5 14.4 134 0.98 NR NR



## 2. Sandow Station - Stack 5A

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs

1 10/28/2009 17:28 19:29 1 CO, NOx, SO2, THC, CH4313.34 1 - PM10 17.74 608,879 4.1 14.7 216 0.97 68 1.0 1 10/28/2009 12:07 15:26 2 PM, acids, metals 312.23 1 - Acids/PM 18.43 581,352 4.1 14.7 215 0.97 68 1.0 Run 1 Avg312.8 1 - Metals 18.15 589,609 4.1 14.7 218 0.97 68 1.0 1 - Criteria Monitors19.63 581,866 3.59 15.68 - - - - 68 1.0 Run 1 Avg18.49 590,427 4.0 14.9 216 0.97 68 1.0

3 10/30/2009 9:15 12:01 1 CO, NOx, SO2, THC, CH4320.17 3 - PM10 16.99 656,587 4.4 15.3 218 0.97 68 1.0 3 10/30/2009 15:35 19:43 2 PM, acids, metals 317.93 3 - Acids/PM 18.2 624,228 4.4 15.3 215 0.97 68 1.0 Run 3 Avg319.1 3 - Metals 17.57 614,618 4.4 15.3 219 0.97 68 1.0 3 - Criteria Monitors 17.1 625,724 4.08 15.27 - - - - 68 1.0

Run 2 Avg17.47 630,289 4.3 15.3 217 0.97 68 1.0

4 11/5/2009 8:30 11:32 1 CO, NOx, SO2, THC, CH4297.69 4 - PM10 17.74 637,906 4.3 14.8 217 0.99 68 1.0 4 11/5/2009 13:10 15:37 2 PM, acids, metals 301.07 4 - Acids/PM 18.66 611,253 4.3 14.8 215 0.99 68 1.0 Run 4 Avg299.4 4 - Metals 17.52 619,249 4.3 14.8 218 0.99 68 1.0 4 - Criteria Monitors16.46 635,207 5.33 14.56 - - - - 68 1.0

Run 3 Avg17.60 625,904 4.6 14.7 217 0.99 68 1.0EPA Methods 1, 2, 3A, 4, 5B/OTM-28, 9, 19, 25A, 26A, 29, and 30B.

EPA Methods 1, 2, 3A, 4, 5B, 6C, 7E,9, 10, 18, 25A, 26A, 29, 201A, CTM027, and OTM-028

Page 8 of 75

## 2. Sandow Station - Stack 5B

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs

1 10/31/2009 18:14 20:40 1 CO, NOx, SO2, THC, CH4303.86 1 - Acids/PM 18.2 636,237 4.6 15.6 213 0.95 68 1.0 1 10/31/2009 22:34 1:15 2 PM, acids, metals 304.55 1 - Metals 17.53 637,563 4.6 15.6 213 0.95 68 1.0 Run 1 Avg304.2 1 - Criteria Monitors17.17 661,455 4.72 15.04 NR NR 68 1.0 Run 1 Avg17.63 645,085 4.6 15.4 213 0.95 68 1.0

2 - PM10 16.99 622,650 4.8 15.3 216 0.98 68 1.0 2 11/1/2009 2:00 3:39 1 CO, NOx, SO2, THC, CH4302.38 2 - Acids/PM 18.21 633,171 4.8 15.3 220 0.98 68 1.0 2 11/1/2009 16:45 20:08 2 PM, acids, metals 314.07 2 - Metals 17.85 627,130 4.8 15.3 215 0.98 68 1.0 2 11/1/2009 16:45 20:08 2 PM10 same 2 - Criteria Monitors17.45 646,434 4.18 15.61 NR NR 68 1.0 Run 2 Avg308.2 Run 2 Avg17.63 632,346 4.6 15.4 217 0.98 68 1.0

3 11/2/2009 0:10 2:29 1 CO, NOx, SO2, THC, CH4315.49 3 - PM10 17.72 618,237 4.6 15.2 218 0.98 68 1.0 3 11/2/2009 13:29 16:07 2 PM, acids, metals 298.08 3 - Acids/PM 18.01 631,473 4.6 15.2 224 0.98 68 1.0 3 11/2/2009 13:29 16:06 2 PM10 same 3 - Metals 17.46 636,287 4.6 15.2 217 0.98 68 1.0 Run 3 Avg306.8 3 - Criteria Monitors15.32 646,949 4.7 15.21 NR NR 68 1.0 Run 3 Avg17.13 633,237 4.6 15.2 220 0.98 68 1.0

4 11/2/2009 17:01 18:16 1 PM10 NR 4 - PM10 15.32 645,137 4.7 15.2 215 0.98 68 1.0 Run 4 AvgNR Run 4 Avg15.32 645,137 4.7 15.2 215 0.98 68 1.0



## 3. Sandow Station Units 5A and 5B Inlet Ducts (I.D.) and Stacks

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs

5A I.D.-1 10/28/2009 12:07 15:07 3 Acids, SO2 312 1-Acids, SO2 8.64 541,793 4.4 15 266 0.94 68 1.0 5A I.D.-1B 10/28/2009 17:28 18:38 3 SO2 313 1B-SO2 NR 625.376 4.4 14.8 NR NR 68 1.0 5A I.D.-3 10/30/2009 9:58 11:50 2 SO2 311 3-SO2 NR 585,739 4 14.9 NR NR 68 1.0 5A I.D.-3 10/30/2009 15:35 18:48 3 Acids 314 3-Acids 7.96 566,295 4.1 14.9 274 0.95 68 1.0 5A I.D.-3B 10/30/2009 15:35 18:43 3 SO2 314 3B-SO2 NR 566,295 4.1 14.9 NR NR 68 1.0 5A I.D.-4 11/5/2009 8:30 11:34 3 Acids 298 4-Acids 13.38 588,235 3.7 15.2 271 0.93 68 1.0 5A I.D.-4 11/5/2009 8:30 11:44 3 SO2 297 4-SO2 NR 561,662 4.1 14.9 NR NR 68 1.0 5A I.D.-4B 11/5/2009 13:13 15:13 2 SO2 302 4B-SO2 NR 588,235 3.7 15.2 NR NR 68 1.0

5A Stack-1 10/28/2009 17:28 19:29 2 Hg 313 1-Hg 18.73 592,087 3.6 15.7 217 0.97 68 1.0 5A Stack-4 11/5/2009 8:30 11:32 3 Hg 298 4-Hg 14.52 640,270 5.3 14.8 221 0.99 68 1.0 5A Stack-5 11/5/2009 13:10 15:21 2 Hg 299 5-Hg NR 640,270 NR NR NR NR NR NR

5B I.D.-1 10/31/2009 18:14 20:58 2 SO2 304 1-SO2 NR 553,358 4.1 15.4 NR NR 68 1.0 5B I.D.-1 10/31/2009 22:25 0:58 2 Acids 298 1-Acids 13.28 557,828 4.3 15.2 264 0.93 68 1.0 5B I.D.-1B 10/31/2009 22:23 1:44 3 SO2 293 1B-SO2 NR 557,828 4.3 15.2 NR NR 68 1.0 5B I.D.-2 11/1/2009 2:01 4:25 2 SO2 302 2-SO2 NR 538,861 4.1 15.3 NR NR 68 1.0 5B I.D.-2/2B 11/1/2009 16:45 19:37 2 Acids, SO2 316 2-Acids, 2B-SO2 12.03 622,759 4.5 15.4 266 0.93 68 1.0 5B I.D.-3 11/2/2009 0:10 2:31 2 SO2 315 3-SO2 NR 546,550 4.2 15.6 NR NR 68 1.0 5B I.D.-3/3B 11/2/2009 13:29 15:37 2 Acids, SO2 299 3-Acids, 3B-SO2 13.55 598,488 4.6 15.2 269 0.93 68 1.0

5B Stack-2 11/1/2009 2:00 3:32 1 Hg 305 2-Hg 18.13 616,397 4.2 15.6 224 0.92 68 1.0 5B Stack-3 11/1/2009 3:35 4:40 1 Hg 302 3-Hg NR 616,397 NR NR NR NR 68 1.0 5B Stack-4 11/2/2009 0:10 2:29 2 Hg 315 4-Hg NR 606,606 NR NR NR NR 68 1.0EPA Methods 1, 2, 3A, 4, 5B, 6C, 7E,9, 10, 18, 25A, 26A, 29, 201A, CTM027, and OTM-028

EPA Methods 1, 2, 3A, 4, 6C, 17, 26A, 30B

Page 9 of 75

## 4. Martin Lake Unit 3 ACI Testing on Mercury Removal

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test Untreated Flue RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) Gas Bypass (%) OHM Baseline 1-Boiler Out. 7/24/2008 8:00 9:20 1 Hg 825 Hg-Boiler Outlet 16.1 NR 4.0 NR NR NR NR NR OHM - - 1-Stack 7/24/2008 8:00 9:20 1 Hg 825 Hg-Stack 20.5 NR 7.6 NR NR NR NR NR OHM 17 2-Boiler Out. 7/24/2008 10:00 11:10 1 Hg 863 Hg-Boiler Outlet 17.3 NR 3.7 NR NR NR NR NR OHM - - 2-Stack 7/24/2008 10:00 11:10 1 Hg 863 Hg-Stack 18.8 NR 7.5 NR NR NR NR NR OHM 21 3-Boiler Out. 7/24/2008 12:20 13:40 1 Hg 870 Hg-Boiler Outlet 18.7 NR 3.7 NR NR NR NR NR OHM - - 3-Stack 7/24/2008 12:20 13:40 1 Hg 870 Hg-Stack 19.8 NR 6.2 NR NR NR NR NR OHM 18 OHM Baseline 1-Boiler Out. 7/25/2008 7:55 9:24 1 Hg 869 Hg-Boiler Outlet 16.6 NR 3.9 NR NR NR NR NR OHM - - 1-Stack 7/25/2008 7:55 9:24 1 Hg 869 Hg-Stack 19.9 NR 7.6 NR NR NR NR NR OHM 25 2-Boiler Out. 7/25/2008 9:50 11:35 1 Hg 872 Hg-Boiler Outlet 17.0 NR 4.3 NR NR NR NR NR OHM - - 2-Stack 7/25/2008 9:50 11:35 1 Hg 872 Hg-Stack 19.3 NR 7.5 NR NR NR NR NR OHM 32 3-Boiler Out. 7/25/2008 11:45 13:40 1 Hg 869 Hg-Boiler Outlet 18.9 NR 4.0 NR NR NR NR NR OHM - - 3-Stack 7/25/2008 11:45 13:40 1 Hg 869 Hg-Stack 18.2 NR 6.2 NR NR NR NR NR OHM 23 OHM ACI Sorbent 1 1-Boiler Out. 7/26/2008 8:45 10:07 1 Hg 870 Hg-Boiler Outlet 17.5 NR 3.7 NR NR NR NR NR OHM - - 1-Stack 7/26/2008 8:45 10:07 1 Hg 870 Hg-Stack 20.0 NR 6.2 NR NR NR NR NR OHM 27 2-Boiler Out. 7/26/2008 10:10 11:55 1 Hg 870 Hg-Boiler Outlet 16.8 NR 4.1 NR NR NR NR NR OHM - - 2-Stack 7/26/2008 10:10 11:55 1 Hg 870 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 27 3-Boiler Out. 7/26/2008 13:30 14:22 1 Hg 863 Hg-Boiler Outlet 17.0 NR 3.2 NR NR NR NR NR OHM - - 3-Stack 7/26/2008 13:30 14:22 1 Hg 863 Hg-Stack 20.2 NR 5.7 NR NR NR NR NR OHM 25 4-Boiler Out. 7/26/2008 14:36 16:02 1 Hg 862 Hg-Boiler Outlet 15.7 NR 3.2 NR NR NR NR NR OHM - - 4-Stack 7/26/2008 14:36 16:02 1 Hg 862 Hg-Stack 20.3 NR 5.6 NR NR NR NR NR OHM 22 OHM ACI Sorbent 1 1-Boiler Out. 7/27/2008 8:05 9:27 1 Hg 867 Hg-Boiler Outlet 17.5 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 7/27/2008 8:05 9:27 1 Hg 867 Hg-Stack 20.0 NR 6.2 NR NR NR NR NR OHM 22 2-Boiler Out. 7/27/2008 9:50 11:35 1 Hg 867 Hg-Boiler Outlet 16.8 NR 4.3 NR NR NR NR NR OHM - - 2-Stack 7/27/2008 9:50 11:35 1 Hg 867 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 20 3-Boiler Out. 7/27/2008 11:45 13:40 1 Hg 869 Hg-Boiler Outlet 17.0 NR 3.7 NR NR NR NR NR OHM - - 3-Stack 7/27/2008 11:45 13:40 1 Hg 869 Hg-Stack 20.2 NR 5.7 NR NR NR NR NR OHM 23 OHM ACI Sorbent 1 1-Boiler Out. 7/28/2008 7:50 9:17 1 Hg 840 Hg-Boiler Outlet 16.9 NR 3.4 NR NR NR NR NR OHM - - 1-Stack 7/28/2008 7:50 9:17 1 Hg 840 Hg-Stack 20.0 NR 7.2 NR NR NR NR NR OHM 17 2-Boiler Out. 7/28/2008 9:35 10:55 1 Hg 862 Hg-Boiler Outlet 19.0 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 7/28/2008 7:50 9:17 1 Hg 862 Hg-Stack 20.0 NR 5.7 NR NR NR NR NR OHM 19 OHM ACI Sorbent 1 1-Boiler Out. 7/28/2008 8:05 9:15 1 Hg 865 Hg-Boiler Outlet 16.4 NR 3.7 NR NR NR NR NR OHM - - 1-Stack 7/28/2008 8:05 9:15 1 Hg 865 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 24 2-Boiler Out. 7/28/2008 10:00 11:40 1 Hg 824 Hg-Boiler Outlet 16.3 NR 3.8 NR NR NR NR NR OHM - - 2-Stack 7/28/2008 10:00 11:40 1 Hg 824 Hg-Stack 19.2 NR 6.4 NR NR NR NR NR OHM 22 3-Boiler Out. 7/28/2008 13:05 14:32 1 Hg 857 Hg-Boiler Outlet 16.0 NR 3.4 NR NR NR NR NR OHM - - 3-Stack 7/28/2008 13:05 14:32 1 Hg 857 Hg-Stack 19.0 NR 6.0 NR NR NR NR NR OHM 22 OHM ACI Sorbent 1 1-Boiler Out. 7/30/2008 8:30 10:05 1 Hg 861 Hg-Boiler Outlet 16.2 NR 4.1 NR NR NR NR NR OHM - - 1-Stack 7/30/2008 8:30 10:05 1 Hg 861 Hg-Stack 19.5 NR 6.2 NR NR NR NR NR OHM 21 2-Boiler Out. 7/30/2008 10:30 12:05 1 Hg 805 Hg-Boiler Outlet 16.1 NR 4.0 NR NR NR NR NR OHM - - 2-Stack 7/30/2008 10:30 12:05 1 Hg 805 Hg-Stack 16.8 NR 7.0 NR NR NR NR NR OHM 19 3-Boiler Out. 7/30/2008 13:30 14:42 1 Hg 784 Hg-Boiler Outlet 15.8 NR 4.1 NR NR NR NR NR OHM - - 3-Stack 7/30/2008 13:30 14:42 1 Hg 784 Hg-Stack 19.6 NR 6.4 NR NR NR NR NR OHM 23 OHM ACI Sorbent 1 1-Boiler Out. 8/3/2008 15:00 16:20 1 Hg 861 Hg-Boiler Outlet 17.0 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 8/3/2008 15:00 16:20 1 Hg 861 Hg-Stack 19.4 NR 5.9 NR NR NR NR NR OHM 33 2-Boiler Out. 8/3/2008 16:25 17:55 1 Hg 858 Hg-Boiler Outlet 16.3 NR 3.9 NR NR NR NR NR OHM - - 2-Stack 8/3/2008 16:25 17:55 1 Hg 858 Hg-Stack 19.2 NR 6.1 NR NR NR NR NR OHM 31 OHM ACI Sorbent 1 1-Boiler Out. 8/4/2008 8:05 8:52 1 Hg 856 Hg-Boiler Outlet 16.5 NR 3.6 NR NR NR NR NR OHM - - 1-Stack 8/4/2008 8:05 8:52 1 Hg 856 Hg-Stack 19.6 NR 6.4 NR NR NR NR NR OHM 29

Page 10 of 752-Boiler Out. 8/4/2008 9:55 11:25 1 Hg 860 Hg-Boiler Outlet 16.1 NR 3.3 NR NR NR NR NR OHM - -

2-Stack 8/4/2008 9:55 11:25 1 Hg 860 Hg-Stack 19.5 NR 6.0 NR NR NR NR NR OHM 29 3-Boiler Out. 8/4/2008 12:35 13:55 1 Hg 864 Hg-Boiler Outlet 16.5 NR 3.5 NR NR NR NR NR OHM - - 3-Stack 8/4/2008 12:35 13:55 1 Hg 864 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 30 OHM ACI Sorbent 2 1-Boiler Out. 8/6/2008 8:00 9:05 1 Hg 869 Hg-Boiler Outlet 17.1 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 8/6/2008 8:00 9:05 1 Hg 869 Hg-Stack 19.2 NR 6.3 NR NR NR NR NR OHM 32 2-Boiler Out. 8/6/2008 9:20 10:20 1 Hg 869 Hg-Boiler Outlet 17.1 NR 3.3 NR NR NR NR NR OHM - - 2-Stack 8/6/2008 9:20 10:20 1 Hg 869 Hg-Stack 19.5 NR 6.0 NR NR NR NR NR OHM 33 3-Boiler Out. 8/6/2008 10:25 11:55 1 Hg 867 Hg-Boiler Outlet 16.7 NR 3.2 NR NR NR NR NR OHM - - 3-Stack 8/6/2008 10:25 11:55 1 Hg 867 Hg-Stack 18.9 NR 6.4 NR NR NR NR NR OHM 33 4-Boiler Out. 8/6/2008 12:35 14:25 1 Hg 866 Hg-Boiler Outlet 16.3 NR 3.2 NR NR NR NR NR OHM - - 4-Stack 8/6/2008 12:35 14:25 1 Hg 866 Hg-Stack 18.7 NR 6.0 NR NR NR NR NR OHM 20 OHM ACI Sorbent 2 1-Boiler Out. 8/7/2008 7:45 8:51 1 Hg 865 Hg-Boiler Outlet 17.2 NR 3.6 NR NR NR NR NR OHM - - 1-Stack 8/7/2008 7:45 8:51 1 Hg 865 Hg-Stack 19.1 NR 6.5 NR NR NR NR NR OHM 45 2-Boiler Out. 8/7/2008 9:05 10:10 1 Hg 865 Hg-Boiler Outlet 17.4 NR 3.7 NR NR NR NR NR OHM - - 2-Stack 8/7/2008 9:05 10:10 1 Hg 865 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 44 3-Boiler Out. 8/7/2008 10:20 11:29 1 Hg 866 Hg-Boiler Outlet 16.8 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 8/7/2008 10:20 11:29 1 Hg 866 Hg-Stack 18.7 NR 6.4 NR NR NR NR NR OHM 20 4-Boiler Out. 8/7/2008 12:20 13:07 1 Hg 867 Hg-Boiler Outlet 17.0 NR 3.5 NR NR NR NR NR OHM - - 4-Stack 8/7/2008 12:20 13:07 1 Hg 867 Hg-Stack 18.0 NR 6.4 NR NR NR NR NR OHM 45 5-Boiler Out. 8/7/2008 13:10 14:23 1 Hg 864 Hg-Boiler Outlet 17.3 NR 3.5 NR NR NR NR NR OHM - - 5-Stack 8/7/2008 13:10 14:23 1 Hg 864 Hg-Stack 19.0 NR 6.4 NR NR NR NR NR OHM 51 OHM ACI Sorbent 2 1-Boiler Out. 8/8/2008 8:20 9:30 1 Hg 864 Hg-Boiler Outlet 16.7 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 8/8/2008 8:20 9:30 1 Hg 864 Hg-Stack 18.6 NR 6.5 NR NR NR NR NR OHM 50 2-Boiler Out. 8/8/2008 9:05 10:10 1 Hg 865 Hg-Boiler Outlet 17.2 NR 3.7 NR NR NR NR NR OHM - - 2-Stack 8/8/2008 9:05 10:10 1 Hg 865 Hg-Stack 18.9 NR 6.5 NR NR NR NR NR OHM 51 3-Boiler Out. 8/8/2008 11:15 12:25 1 Hg 866 Hg-Boiler Outlet 17.4 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 8/8/2008 11:15 12:25 1 Hg 866 Hg-Stack 18.7 NR 6.5 NR NR NR NR NR OHM 49 4-Boiler Out. 8/8/2008 12:35 13:45 1 Hg 864 Hg-Boiler Outlet 17.4 NR 3.7 NR NR NR NR NR OHM - - 4-Stack 8/8/2008 12:20 13:07 1 Hg 864 Hg-Stack 18.0 NR 6.5 NR NR NR NR NR OHM 48 OHM Baseline 5-Boiler Out. 8/8/2008 14:30 15:20 1 Hg 866 Hg-Boiler Outlet 17.3 NR 3.7 NR NR NR NR NR OHM - - 5-Stack 8/8/2008 14:30 15:20 1 Hg 866 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 51 6-Boiler Out. 8/8/2008 15:25 16:35 1 Hg 865 Hg-Boiler Outlet 17.3 NR 3.8 NR NR NR NR NR OHM - - 6-Stack 8/8/2008 15:25 16:35 1 Hg 865 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 49 OHM ACI Sorbent 2 1-Boiler Out. 8/9/2008 8:00 9:10 1 Hg 844 Hg-Boiler Outlet 17.5 NR 3.8 NR NR NR NR NR OHM - - 1-Stack 8/9/2008 8:00 9:10 1 Hg 844 Hg-Stack 19.6 NR 6.5 NR NR NR NR NR OHM 35 2-Boiler Out. 8/9/2008 9:15 10:15 1 Hg 857 Hg-Boiler Outlet 17.8 NR 3.8 NR NR NR NR NR OHM - - 2-Stack 8/9/2008 9:15 10:15 1 Hg 857 Hg-Stack 19.8 NR 6.5 NR NR NR NR NR OHM 48 3-Boiler Out. 8/9/2008 10:15 11:25 1 Hg 861 Hg-Boiler Outlet 18.2 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 8/9/2008 10:15 11:25 1 Hg 861 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 41 4-Boiler Out. 8/9/2008 11:35 12:40 1 Hg 868 Hg-Boiler Outlet 17.3 NR 3.5 NR NR NR NR NR OHM - - 4-Stack 8/9/2008 11:35 12:40 1 Hg 868 Hg-Stack 19.2 NR 6.5 NR NR NR NR NR OHM 46 OHM ACI Sorbent 2 1-Boiler Out. 8/10/2008 8:30 9:20 1 Hg 863 Hg-Boiler Outlet 18.8 NR 3.4 NR NR NR NR NR OHM - - 1-Stack 8/10/2008 8:30 9:20 1 Hg 863 Hg-Stack 18.9 NR 6.5 NR NR NR NR NR OHM 47 2-Boiler Out. 8/10/2008 9:50 11:05 1 Hg 864 Hg-Boiler Outlet 17.1 NR 3.3 NR NR NR NR NR OHM - - 2-Stack 8/10/2008 9:50 11:05 1 Hg 864 Hg-Stack 18.8 NR 6.5 NR NR NR NR NR OHM 46 3-Boiler Out. 8/10/2008 11:05 12:10 1 Hg 864 Hg-Boiler Outlet 17.7 NR 3.5 NR NR NR NR NR OHM - - 3-Stack 8/10/2008 11:05 12:10 1 Hg 864 Hg-Stack 18.6 NR 6.5 NR NR NR NR NR OHM 46 OHM ACI Sorbent 2 1-Boiler Out. 8/13/2008 15:00 16:20 1 Hg 859 Hg-Boiler Outlet 17.0 NR 4 NR NR NR NR NR OHM - - 1-Stack 8/13/2008 15:00 16:20 1 Hg 859 Hg-Stack 19.4 NR 6 NR NR NR NR NR OHM 41 2-Boiler Out. 8/13/2008 18:25 19:35 1 Hg 861 Hg-Boiler Outlet 16.2 NR 3.9 NR NR NR NR NR OHM - - 2-Stack 8/13/2008 18:25 19:35 1 Hg 861 Hg-Stack 19.2 NR 6.4 NR NR NR NR NR OHM 42 OHM ACI Sorbent 2 1-Boiler Out. 8/14/2008 9:35 10:50 1 Hg 863 Hg-Boiler Outlet 17.2 NR 3.8 NR NR NR NR NR OHM - -

Page 11 of 751-Stack 8/14/2008 9:35 10:50 1 Hg 863 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 40

2-Boiler Out. 8/14/2008 11:05 12:20 1 Hg 864 Hg-Boiler Outlet 17.9 NR 3.8 NR NR NR NR NR OHM - - 2-Stack 8/14/2008 11:05 12:20 1 Hg 864 Hg-Stack 19.2 NR 6.3 NR NR NR NR NR OHM 41 3-Boiler Out. 8/14/2008 13:25 14:35 1 Hg 864 Hg-Boiler Outlet 16.9 NR 3.5 NR NR NR NR NR OHM - - 3-Stack 8/14/2008 13:25 14:35 1 Hg 864 Hg-Stack 19.5 NR 6.2 NR NR NR NR NR OHM 37 4-Boiler Out. 8/14/2008 14:40 15:35 1 Hg 863 Hg-Boiler Outlet 17.5 NR 3.6 NR NR NR NR NR OHM - - 4-Stack 8/14/2008 14:40 15:35 1 Hg 863 Hg-Stack 19.4 NR 6.7 NR NR NR NR NR OHM 34 5-Boiler Out. 8/14/2008 16:45 17:50 1 Hg 864 Hg-Boiler Outlet 16.0 NR 3.7 NR NR NR NR NR OHM - - 5-Stack 8/14/2008 16:45 17:50 1 Hg 864 Hg-Stack 19.4 NR 6.4 NR NR NR NR NR OHM 31 6-Boiler Out. 8/14/2008 18:00 19:05 1 Hg 864 Hg-Boiler Outlet 16.6 NR 3.6 NR NR NR NR NR OHM - - 6-Stack 8/14/2008 18:00 19:05 1 Hg 864 Hg-Stack 19.1 NR 6 NR NR NR NR NR OHM 32 OHM ACI Sorbent 2 1-Boiler Out. 8/18/2008 11:00 12:30 1 Hg 864 Hg-Boiler Outlet 17.8 NR 3.9 NR NR NR NR NR OHM - - 1-Stack 8/18/2008 11:00 12:30 1 Hg 864 Hg-Stack 19.5 NR 6.3 NR NR NR NR NR OHM 40 2-Boiler Out. 8/18/2008 13:15 14:20 1 Hg 843 Hg-Boiler Outlet 17.5 NR 3.8 NR NR NR NR NR OHM - - 2-Stack 8/18/2008 13:15 14:20 1 Hg 843 Hg-Stack 19.8 NR 6.3 NR NR NR NR NR OHM 30 3-Boiler Out. 8/18/2008 14:25 15:40 1 Hg 848 Hg-Boiler Outlet 18.7 NR 3.8 NR NR NR NR NR OHM - - 3-Stack 8/18/2008 14:25 15:40 1 Hg 848 Hg-Stack 19.7 NR 6.4 NR NR NR NR NR OHM 29 OHM ACI Sorbent 2 1-Boiler Out. 8/20/2008 8:20 9:30 1 Hg 813 Hg-Boiler Outlet 17.2 NR 3.7 NR NR NR NR NR OHM - - 1-Stack 8/20/2008 8:20 9:30 1 Hg 813 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 36 2-Boiler Out. 8/20/2008 9:50 10:55 1 Hg 616 Hg-Boiler Outlet 17.6 NR 3.3 NR NR NR NR NR OHM - - 2-Stack 8/20/2008 9:50 10:55 1 Hg 616 Hg-Stack 19.9 NR 6.8 NR NR NR NR NR OHM 21 3-Boiler Out. 8/20/2008 11:15 12:25 1 Hg 830 Hg-Boiler Outlet 17.9 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 8/20/2008 11:15 12:25 1 Hg 830 Hg-Stack 18.9 NR 6.2 NR NR NR NR NR OHM 33 4-Boiler Out. 8/20/2008 12:35 13:45 1 Hg 844 Hg-Boiler Outlet 18.1 NR 3.6 NR NR NR NR NR OHM - - 4-Stack 8/20/2008 12:35 13:45 1 Hg 844 Hg-Stack 19.6 NR 6.4 NR NR NR NR NR OHM 38 OHM ACI Sorbent 2 1-Boiler Out. 8/21/2008 8:05 9:05 1 Hg 853 Hg-Boiler Outlet 18.4 NR 4.0 NR NR NR NR NR OHM - - 1-Stack 8/21/2008 8:05 9:05 1 Hg 853 Hg-Stack 19.3 NR 6.4 NR NR NR NR NR OHM 43 2-Boiler Out. 8/21/2008 9:30 10:30 1 Hg 866 Hg-Boiler Outlet 18.0 NR 4.0 NR NR NR NR NR OHM - - 2-Stack 8/21/2008 9:30 10:30 1 Hg 866 Hg-Stack 19.2 NR 6.3 NR NR NR NR NR OHM 42 3-Boiler Out. 8/21/2008 11:55 12:55 1 Hg 867 Hg-Boiler Outlet 17.4 NR 4.0 NR NR NR NR NR OHM - - 3-Stack 8/21/2008 11:55 12:55 1 Hg 867 Hg-Stack 19.5 NR 5.9 NR NR NR NR NR OHM 43 4-Boiler Out. 8/21/2008 13:15 14:15 1 Hg 870 Hg-Boiler Outlet 17.3 NR 4.0 NR NR NR NR NR OHM - - 4-Stack 8/21/2008 13:15 14:15 1 Hg 870 Hg-Stack 19.4 NR 5.9 NR NR NR NR NR OHM 43 5-Boiler Out. 8/21/2008 15:45 16:30 1 Hg 755 Hg-Boiler Outlet 17.5 NR 3.4 NR NR NR NR NR OHM - - 5-Stack 8/21/2008 15:45 16:30 1 Hg 755 Hg-Stack 19.4 NR 6.4 NR NR NR NR NR OHM 32 6-Boiler Out. 8/21/2008 16:40 17:55 1 Hg 841 Hg-Boiler Outlet 17.8 NR 3.3 NR NR NR NR NR OHM - - 6-Stack 8/21/2008 16:40 17:55 1 Hg 841 Hg-Stack 19.1 NR 6.0 NR NR NR NR NR OHM 35 OHM ACI Sorbent 2 1-Boiler Out. 8/23/2008 8:05 9:15 1 Hg 869 Hg-Boiler Outlet 18.0 NR 3.7 NR NR NR NR NR OHM - - 1-Stack 8/23/2008 8:05 9:15 1 Hg 869 Hg-Stack 19.6 NR 6.6 NR NR NR NR NR OHM 38 2-Boiler Out. 8/23/2008 10:20 11:22 1 Hg 869 Hg-Boiler Outlet 18.3 NR 3.5 NR NR NR NR NR OHM - - 2-Stack 8/23/2008 10:20 11:22 1 Hg 869 Hg-Stack 20.1 NR 6.3 NR NR NR NR NR OHM 41 3-Boiler Out. 8/23/2008 11:40 12:42 1 Hg 869 Hg-Boiler Outlet 17.8 NR 3.4 NR NR NR NR NR OHM - - 3-Stack 8/23/2008 11:40 12:42 1 Hg 869 Hg-Stack 20.3 NR 6.5 NR NR NR NR NR OHM 41 OHM ACI Sorbent 2 1-Boiler Out. 8/25/2008 7:55 9:00 1 Hg 869 Hg-Boiler Outlet 17.6 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 8/25/2008 7:55 9:00 1 Hg 869 Hg-Stack 18.9 NR 6.4 NR NR NR NR NR OHM 43 2-Boiler Out. 8/25/2008 9:20 10:22 1 Hg 868 Hg-Boiler Outlet 17.1 NR 3.5 NR NR NR NR NR OHM - - 2-Stack 8/25/2008 9:20 10:22 1 Hg 868 Hg-Stack 19.5 NR 6.4 NR NR NR NR NR OHM 39 3-Boiler Out. 8/25/2008 10:40 11:42 1 Hg 866 Hg-Boiler Outlet 17.7 NR 3.4 NR NR NR NR NR OHM - - 3-Stack 8/25/2008 10:40 11:42 1 Hg 866 Hg-Stack 19.7 NR 6.4 NR NR NR NR NR OHM 40 OHM ACI Sorbent 2 1-Boiler Out. 8/26/2008 10:15 11:20 1 Hg 845 Hg-Boiler Outlet 17.1 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 8/26/2008 10:15 11:20 1 Hg 845 Hg-Stack 19.4 NR 6.5 NR NR NR NR NR OHM 38 2-Boiler Out. 8/26/2008 11:35 12:37 1 Hg 851 Hg-Boiler Outlet 17.8 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 8/26/2008 11:35 12:37 1 Hg 851 Hg-Stack 20.9 NR 6.4 NR NR NR NR NR OHM 37 3-Boiler Out. 8/26/2008 13:40 15:25 1 Hg 856 Hg-Boiler Outlet 18.7 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 8/26/2008 13:40 15:25 1 Hg 856 Hg-Stack NA NR NA NR NR NR NR NR OHM 39

Page 12 of 75OHM Baseline

1-Boiler Out. 8/28/2008 8:05 9:10 1 Hg 850 Hg-Boiler Outlet 17.6 NR 3.4 NR NR NR NR NR OHM - - 1-Stack 8/28/2008 8:05 9:10 1 Hg 850 Hg-Stack 18.9 NR 6.4 NR NR NR NR NR OHM 69 2-Boiler Out. 8/28/2008 11:20 12:22 1 Hg 864 Hg-Boiler Outlet 17.1 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 8/28/2008 11:20 12:22 1 Hg 864 Hg-Stack 19.5 NR 6.4 NR NR NR NR NR OHM 86 3-Boiler Out. 8/28/2008 13:00 14:02 1 Hg 864 Hg-Boiler Outlet 17.7 NR 3.5 NR NR NR NR NR OHM - - 3-Stack 8/28/2008 13:00 14:02 1 Hg 864 Hg-Stack 19.7 NR 6.4 NR NR NR NR NR OHM 86 OHM ACI Sorbent 3 1-Boiler Out. 8/29/2008 8:45 9:55 1 Hg 866 Hg-Boiler Outlet 18.4 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 8/29/2008 8:45 9:55 1 Hg 866 Hg-Stack 20.2 NR 6.3 NR NR NR NR NR OHM 52 2-Boiler Out. 8/29/2008 10:05 11:02 1 Hg 867 Hg-Boiler Outlet 18.0 NR 3.5 NR NR NR NR NR OHM - - 2-Stack 8/29/2008 10:05 11:02 1 Hg 867 Hg-Stack 19.8 NR 6.3 NR NR NR NR NR OHM 53 3-Boiler Out. 8/29/2008 12:55 13:49 1 Hg 868 Hg-Boiler Outlet 17.4 NR 3.3 NR NR NR NR NR OHM - - 3-Stack 8/29/2008 12:55 13:49 1 Hg 868 Hg-Stack 19.7 NR 6.3 NR NR NR NR NR OHM 46 4-Boiler Out. 8/29/2008 14:00 15:02 1 Hg 861 Hg-Boiler Outlet 17.3 NR 3.2 NR NR NR NR NR OHM - - 4-Stack 8/29/2008 14:00 15:02 1 Hg 861 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 44 5-Boiler Out. 8/29/2008 15:55 17:03 1 Hg 861 Hg-Boiler Outlet 17.5 NR 3.5 NR NR NR NR NR OHM - - 5-Stack 8/29/2008 15:55 17:03 1 Hg 861 Hg-Stack 18.7 NR 6.3 NR NR NR NR NR OHM 39 6-Boiler Out. 8/29/2008 17:25 18:16 1 Hg 841 Hg-Boiler Outlet 17.8 NR 3.1 NR NR NR NR NR OHM - - 6-Stack 8/29/2008 17:25 18:16 1 Hg 841 Hg-Stack 18.9 NR 6.4 NR NR NR NR NR OHM 34 OHM ACI Sorbent 3 1-Boiler Out. 8/31/2008 8:05 9:10 1 Hg 867 Hg-Boiler Outlet 18.4 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 8/31/2008 8:05 9:10 1 Hg 867 Hg-Stack 19.4 NR 6.3 NR NR NR NR NR OHM 52 2-Boiler Out. 8/31/2008 9:15 10:12 1 Hg 870 Hg-Boiler Outlet 17.1 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 8/31/2008 9:15 10:12 1 Hg 870 Hg-Stack 18.7 NR 6.3 NR NR NR NR NR OHM 53 3-Boiler Out. 8/31/2008 11:05 12:09 1 Hg 840 Hg-Boiler Outlet 17.4 NR 3.2 NR NR NR NR NR OHM - - 3-Stack 8/31/2008 11:05 12:09 1 Hg 840 Hg-Stack 19.5 NR 6.3 NR NR NR NR NR OHM 44 4-Boiler Out. 8/31/2008 12:55 13:56 1 Hg 807 Hg-Boiler Outlet 17.6 NR 3.2 NR NR NR NR NR OHM - - 4-Stack 8/31/2008 12:55 13:56 1 Hg 807 Hg-Stack 19.3 NR 6.3 NR NR NR NR NR OHM 30 5-Boiler Out. 8/31/2008 14:35 15:30 1 Hg 853 Hg-Boiler Outlet 16.5 NR 3.3 NR NR NR NR NR OHM - - 5-Stack 8/31/2008 14:35 15:30 1 Hg 853 Hg-Stack 19.4 NR 6.4 NR NR NR NR NR OHM 44 6-Boiler Out. 8/31/2008 15:35 16:40 1 Hg 852 Hg-Boiler Outlet 17.8 NR 3.4 NR NR NR NR NR OHM - - 6-Stack 8/31/2008 15:35 16:40 1 Hg 852 Hg-Stack 19.1 NR 6.4 NR NR NR NR NR OHM 43 OHM Baseline 1-Boiler Out. 9/1/2008 8:30 9:50 1 Hg 855 Hg-Boiler Outlet 18.8 NR 3.4 NR NR NR NR NR OHM - - 1-Stack 9/1/2008 8:30 9:50 1 Hg 855 Hg-Stack 18.6 NR 6.8 NR NR NR NR NR OHM 43 OHM Baseline 1-Boiler Out. 9/5/2008 8:00 9:10 1 Hg 860 Hg-Boiler Outlet 17.5 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 9/5/2008 8:00 9:10 1 Hg 860 Hg-Stack 19.6 NR 6.4 NR NR NR NR NR OHM 35 2-Boiler Out. 9/5/2008 9:30 10:32 1 Hg 796 Hg-Boiler Outlet 17.8 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 9/5/2008 9:30 10:32 1 Hg 796 Hg-Stack 19.8 NR 6.5 NR NR NR NR NR OHM 30 3-Boiler Out. 9/5/2008 10:55 11:57 1 Hg 795 Hg-Boiler Outlet 18.2 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 9/5/2008 10:55 11:57 1 Hg 795 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 23 4-Boiler Out. 9/5/2008 13:10 14:11 1 Hg 857 Hg-Boiler Outlet 17.3 NR 3.4 NR NR NR NR NR OHM - - 4-Stack 9/5/2008 13:10 14:11 1 Hg 857 Hg-Stack 19.2 NR 6.5 NR NR NR NR NR OHM 29 OHM ACI Sorbent 4 1-Boiler Out. 9/6/2008 8:10 9:25 1 Hg 859 Hg-Boiler Outlet 16.6 NR 3.6 NR NR NR NR NR OHM - - 1-Stack 9/6/2008 8:10 9:25 1 Hg 859 Hg-Stack 18.2 NR 6.7 NR NR NR NR NR OHM 28 2-Boiler Out. 9/6/2008 9:35 11:11 1 Hg 868 Hg-Boiler Outlet 16.6 NR 3.5 NR NR NR NR NR OHM - - 2-Stack 9/6/2008 9:35 11:11 1 Hg 868 Hg-Stack 18.1 NR 6.3 NR NR NR NR NR OHM 26 3-Boiler Out. 9/6/2008 12:55 13:49 1 Hg 867 Hg-Boiler Outlet 16.7 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 9/6/2008 12:55 13:49 1 Hg 867 Hg-Stack 18.5 NR 6.3 NR NR NR NR NR OHM 29 4-Boiler Out. 9/6/2008 14:00 15:02 1 Hg 871 Hg-Boiler Outlet 16.8 NR 3.4 NR NR NR NR NR OHM - - 4-Stack 9/6/2008 14:00 15:02 1 Hg 871 Hg-Stack 18.5 NR 6.4 NR NR NR NR NR OHM 29 OHM ACI Sorbent 4 1-Boiler Out. 9/7/2008 8:00 9:27 1 Hg 856 Hg-Boiler Outlet 16.6 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 9/7/2008 8:00 9:27 1 Hg 856 Hg-Stack 18.2 NR 6.2 NR NR NR NR NR OHM 27 2-Boiler Out. 9/7/2008 9:35 11:10 1 Hg 866 Hg-Boiler Outlet 16.6 NR 3.4 NR NR NR NR NR OHM - - 2-Stack 9/7/2008 9:35 11:10 1 Hg 866 Hg-Stack 18.1 NR 6.2 NR NR NR NR NR OHM 29 3-Boiler Out. 9/7/2008 12:20 13:22 1 Hg 867 Hg-Boiler Outlet 16.7 NR 3.2 NR NR NR NR NR OHM - - 3-Stack 9/7/2008 12:20 13:22 1 Hg 867 Hg-Stack 18.5 NR 6.3 NR NR NR NR NR OHM 36

Page 13 of 754-Boiler Out. 9/7/2008 14:00 15:02 1 Hg 871 Hg-Boiler Outlet 16.8 NR 3.3 NR NR NR NR NR OHM - -

4-Stack 9/7/2008 14:00 15:02 1 Hg 871 Hg-Stack 18.5 NR 6.6 NR NR NR NR NR OHM 35 OHM ACI Sorbent 4 1-Boiler Out. 9/8/2008 9:00 10:07 1 Hg 865 Hg-Boiler Outlet 18.2 NR 3.3 NR NR NR NR NR OHM - - 1-Stack 9/8/2008 9:00 10:07 1 Hg 865 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 32 2-Boiler Out. 9/8/2008 10:35 11:32 1 Hg 867 Hg-Boiler Outlet 17.8 NR 3.2 NR NR NR NR NR OHM - - 2-Stack 9/8/2008 10:35 11:32 1 Hg 867 Hg-Stack 18.7 NR 6.3 NR NR NR NR NR OHM 32 3-Boiler Out. 9/8/2008 13:25 14:27 1 Hg 865 Hg-Boiler Outlet 16.4 NR 3.5 NR NR NR NR NR OHM - - 3-Stack 9/8/2008 13:25 14:27 1 Hg 865 Hg-Stack 18.6 NR 6.2 NR NR NR NR NR OHM 36 4-Boiler Out. 9/8/2008 14:50 15:52 1 Hg 868 Hg-Boiler Outlet 17.4 NR 3.4 NR NR NR NR NR OHM - - 4-Stack 9/8/2008 14:50 15:52 1 Hg 868 Hg-Stack 18.6 NR 6.2 NR NR NR NR NR OHM 36 OHM Baseline 1-Boiler Out. 9/9/2008 8:00 9:01 1 Hg 862 Hg-Boiler Outlet 17.5 NR 3.8 NR NR NR NR NR OHM - - 1-Stack 9/9/2008 8:00 9:01 1 Hg 862 Hg-Stack 19.6 NR 6.5 NR NR NR NR NR OHM 40 2-Boiler Out. 9/9/2008 9:10 10:13 1 Hg 862 Hg-Boiler Outlet 17.8 NR 3.8 NR NR NR NR NR OHM - - 2-Stack 9/9/2008 9:10 10:13 1 Hg 862 Hg-Stack 19.8 NR 6.5 NR NR NR NR NR OHM 40 3-Boiler Out. 9/9/2008 10:20 11:19 1 Hg 864 Hg-Boiler Outlet 18.2 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 9/9/2008 10:20 11:19 1 Hg 864 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 39 4-Boiler Out. 9/9/2008 11:35 12:40 1 Hg 863 Hg-Boiler Outlet 17.3 NR 3.6 NR NR NR NR NR OHM - - 4-Stack 9/9/2008 11:35 12:40 1 Hg 863 Hg-Stack 19.2 NR 6.5 NR NR NR NR NR OHM 35 OHM ACI Sorbent 4 1-Boiler Out. 9/10/2008 10:30 11:17 1 Hg 850 Hg-Boiler Outlet 18.2 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 9/10/2008 10:30 11:17 1 Hg 850 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 36 2-Boiler Out. 9/10/2008 11:35 12:27 1 Hg 859 Hg-Boiler Outlet 19.3 NR 3.5 NR NR NR NR NR OHM - - 2-Stack 9/10/2008 11:35 12:27 1 Hg 859 Hg-Stack 20.2 NR 6.3 NR NR NR NR NR OHM 35 3-Boiler Out. 9/10/2008 13:45 14:54 1 Hg 859 Hg-Boiler Outlet 18.1 NR 3.6 NR NR NR NR NR OHM - - 3-Stack 9/10/2008 13:45 14:54 1 Hg 859 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 35 4-Boiler Out. 9/10/2008 14:55 16:01 1 Hg 860 Hg-Boiler Outlet 17.5 NR 3.5 NR NR NR NR NR OHM - - 4-Stack 9/10/2008 14:55 16:01 1 Hg 860 Hg-Stack 19.0 NR 6.5 NR NR NR NR NR OHM 34 OHM ACI Sorbent 4 1-Boiler Out. 9/11/2008 7:55 8:52 1 Hg 866 Hg-Boiler Outlet 18.2 NR 3.5 NR NR NR NR NR OHM - - 1-Stack 9/11/2008 7:55 8:52 1 Hg 866 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 34 2-Boiler Out. 9/11/2008 9:45 10:31 1 Hg 869 Hg-Boiler Outlet 19.3 NR 3.3 NR NR NR NR NR OHM - - 2-Stack 9/11/2008 9:45 10:31 1 Hg 869 Hg-Stack 20.2 NR 6.3 NR NR NR NR NR OHM 35 3-Boiler Out. 9/11/2008 10:35 11:39 1 Hg 867 Hg-Boiler Outlet 19.3 NR 3.3 NR NR NR NR NR OHM - - 3-Stack 9/11/2008 10:35 11:39 1 Hg 867 Hg-Stack 20.2 NR 6.3 NR NR NR NR NR OHM 35 4-Boiler Out. 9/11/2008 13:15 14:06 1 Hg 863 Hg-Boiler Outlet 18.1 NR 3.6 NR NR NR NR NR OHM - - 4-Stack 9/11/2008 13:15 14:06 1 Hg 863 Hg-Stack 19.1 NR 6.3 NR NR NR NR NR OHM 41 5-Boiler Out. 9/11/2008 14:15 15:21 1 Hg 864 Hg-Boiler Outlet 17.5 NR 3.7 NR NR NR NR NR OHM - - 5-Stack 9/11/2008 14:15 15:21 1 Hg 864 Hg-Stack 19.0 NR 6.3 NR NR NR NR NR OHM 41 6-Boiler Out. 9/11/2008 15:35 16:31 1 Hg 865 Hg-Boiler Outlet 17.5 NR 3.8 NR NR NR NR NR OHM - - 6-Stack 9/11/2008 15:35 16:31 1 Hg 865 Hg-Stack 19.0 NR 6.3 NR NR NR NR NR OHM 41



## 5. Big Brown Unit 1--Boiler Outlet, ESP Outlet, and Stack

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) OHM Baseline no ACI 70%lignite / 30%subbitum. 1 11/7/2007 10:35 11:48 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/7/2007 13:35 14:35 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/7/2007 16:20 17:20 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline no ACI 70/30 1 11/25/2007 8:35 9:35 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/25/2007 10:20 11:20 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/25/2007 12:45 13:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline no ACI 70/30 1 12/4/2007 10:21 11:21 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 12/4/2007 11:47 12:47 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 12/4/2007 12:56 13:56 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM CMM Baseline no ACI 70/30
Page 14 of 751 11/7/2007 10:35 11:48 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 11/7/2007 13:35 14:35 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 11/7/2007 16:20 17:20 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 1 11/25/2007 8:35 9:35 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 11/25/2007 10:20 11:20 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 11/25/2007 12:45 13:45 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 1 12/4/2007 10:21 11:21 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 12/4/2007 11:47 12:47 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 12/4/2007 12:56 13:56 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM OHM Norit HG LH 70/30 1 11/8/2007 9:20 10:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/8/2007 11:50 13:00 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/8/2007 15:35 16:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/9/2007 12:00 13:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/9/2007 14:30 15:40 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/9/2007 17:10 18:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/10/2007 9:00 10:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/10/2007 11:20 12:20 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/10/2007 13:40 14:40 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/11/2007 9:10 10:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/11/2007 10:40 11:41 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/11/2007 13:50 14:52 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/12/2007 10:30 11:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/12/2007 13:05 14:18 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/12/2007 15:05 16:05 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Calgon Fluepac MC Plus 70/30 1 11/15/2007 10:38 11:51 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/15/2007 13:22 14:22 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/15/2007 15:05 16:08 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/16/2007 11:15 12:15 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/16/2007 13:15 14:15 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/16/2007 14:45 15:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/17/2007 10:03 11:06 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/17/2007 11:28 12:28 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/23/2007 11:15 12:18 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/23/2007 12:55 13:55 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/23/2007 14:30 15:33 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/24/2007 11:28 12:28 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/27/2007 10:00 11:00 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/27/2007 11:36 12:36 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/27/2007 12:40 13:40 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 11/28/2007 9:53 10:53 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/28/2007 11:30 12:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/28/2007 13:36 14:36 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Calgon 70/30 1 11/29/2007 9:36 10:36 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/29/2007 12:02 13:02 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 11/29/2007 16:02 17:02 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM APK 70/30 2 11/7/2007 13:35 14:35 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/7/2007 16:20 17:20 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/8/2007 11:50 13:00 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/8/2007 15:35 16:45 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/9/2007 14:30 15:40 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/9/2007 17:10 18:10 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/10/2007 11:20 12:20 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/10/2007 13:40 14:40 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/11/2007 10:40 11:41 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/11/2007 13:50 14:52 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/12/2007 13:05 14:18 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/12/2007 15:05 16:05 1 Hg NR Hg NR NR NR NR NR NR NR NR APK

Page 15 of 752 11/15/2007 13:22 14:22 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/15/2007 15:05 16:08 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/16/2007 13:15 14:15 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/16/2007 14:45 15:45 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/23/2007 12:55 13:55 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/23/2007 14:30 15:33 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/27/2007 11:36 12:36 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/27/2007 12:40 13:40 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 2 11/28/2007 11:30 12:30 1 Hg NR Hg NR NR NR NR NR NR NR NR APK 3 11/28/2007 13:36 14:36 1 Hg NR Hg NR NR NR NR NR NR NR NR APK OHM Longterm Testing 70/30 1 11/30/2007 10:55 11:55 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 11/30/2007 14:27 15:27 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 12/2/2007 10:28 11:28 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 12/2/2007 13:09 14:09 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 12/3/2007 10:05 11:05 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 12/3/2007 11:18 12:18 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM



## 6. Monticello Unit 2 ACI Study

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) OHM Baseline 50%lignite / 50%subbituminous (PRB)

1 9/29/2007 11:20 12:50 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 9/29/2007 14:10 15:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 9/29/2007 16:15 17:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 9/30/2007 8:50 10:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 9/30/2007 12:10 14:05 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 9/30/2007 15:07 16:37 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 9/30/2007 17:36 18:56 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline 100%PRB

1 10/1/2007 15:00 16:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/2/2007 7:00 9:00 2 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/2/2007 11:00 13:00 2 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/2/2007 15:00 17:00 2 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline 100%PRB

1 10/15/2007 9:15 10:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/15/2007 17:00 17:42 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline 50%lignite / 50%subbituminous

1 10/16/2007 14:00 14:57 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/16/2007 15:10 16:11 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/16/2007 16:20 17:14 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Baseline 50%lignite / 50%subbituminous

1 10/26/2007 9:30 10:33 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/26/2007 11:55 12:59 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/26/2007 13:20 14:27 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM CMM Baseline 50%lignite / 50%subbituminous

1 9/29/2007 11:20 12:50 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 9/29/2007 14:10 15:30 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 9/29/2007 16:15 17:45 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 1 9/30/2007 8:50 10:30 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 9/30/2007 12:10 14:05 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 9/30/2007 15:07 16:37 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 4 9/30/2007 17:36 18:56 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM CMM Baseline 100%PRB

1 10/1/2007 15:00 16:30 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 1 10/2/2007 7:00 9:00 2 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 10/2/2007 11:00 13:00 2 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 10/2/2007 15:00 17:00 2 Hg NR Hg NR NR NR NR NR NR NR NR CMM CMM Baseline 50%lignite / 50%subbituminous
Page 16 of 751 10/16/2007 14:00 14:57 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 10/16/2007 15:10 16:11 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 10/16/2007 16:20 17:14 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM CMM Baseline 50%lignite / 50%subbituminous

1 10/26/2007 9:30 10:33 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 2 10/26/2007 11:55 12:59 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 3 10/26/2007 13:20 14:27 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM OHM Fluepac ACI 100%PRB

1 10/3/2007 7:05 8:24 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/3/2007 8:35 9:50 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/3/2007 14:05 15:24 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/3/2007 15:30 16:33 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 5 10/3/2007 19:10 20:00 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 6 10/3/2007 20:15 20:53 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/4/2007 8:00 9:04 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/4/2007 9:30 10:30 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/4/2007 12:07 13:06 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/4/2007 13:20 14:22 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 5 10/4/2007 16:00 17:24 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 6 10/4/2007 18:18 19:19 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/5/2007 7:30 8:47 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/5/2007 9:06 11:15 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/5/2007 14:05 15:24 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/5/2007 15:30 16:33 1 Hg NR Hg OHM Norit Hg LH ACI, 100%PRB

1 10/7/2007 15:30 16:08 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/7/2007 16:17 17:25 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/7/2007 18:05 19:12 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/7/2007 19:20 20:16 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/8/2007 7:30 8:34 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/8/2007 8:45 9:57 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/8/2007 10:58 12:06 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/8/2007 12:07 13:25 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 5 10/8/2007 14:55 16:03 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 6 10/8/2007 16:10 17:08 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 7 10/8/2007 17:55 18:48 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/9/2007 7:30 8:34 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/9/2007 8:45 9:57 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/9/2007 10:58 12:06 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/9/2007 12:07 13:25 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 5 10/9/2007 14:55 16:03 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 6 10/9/2007 16:10 17:08 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 7 10/9/2007 17:55 18:48 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/11/2007 14:30 15:57 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/11/2007 16:30 17:57 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/13/2007 8:45 9:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/13/2007 9:55 10:55 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/13/2007 11:45 12:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 4 10/13/2007 13:00 14:00 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 5 10/13/2007 14:45 15:45 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM OHM Norit Hg LH ACI, 50%lignite / 50%subbituminous

1 10/17/2007 10:20 11:27 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/17/2007 12:00 13:20 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/17/2007 13:25 14:32 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/27/2007 9:20 10:55 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 2 10/27/2007 11:40 12:35 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 3 10/27/2007 13:25 14:20 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM 1 10/29/2007 9:00 10:10 1 Hg NR Hg NR NR NR NR NR NR NR NR OHM CMM Norit Hg LH ACI, 50%lignite / 50%subbituminous 10/17/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/18/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM

Page 17 of 7510/19/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/20/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/21/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/22/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/27/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM 10/28/2007NR NR 1 Hg NR Hg NR NR NR NR NR NR NR NR CMM



## 7. Big Brown Unit 2 ACI Options

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) ESP Inlet 1/18/2006 NR NR NR Hg >480 Hg 13.0 NR 5.1 14.1 NR NR NR NR OHM ESP Inlet 1/19/2006 NR NR NR Hg >480 Hg 15.5 NR 5.2 14.0 NR NR NR NR OHM ESP Inlet 1/20/2006 NR NR NR Hg >480 Hg 13.8 NR 5.5 13.7 NR NR NR NR OHM FFInlet 1/18/2006 NR NR NR Hg >480 Hg 13.3 NR 6.7 12.8 NR NR NR NR OHM FFInlet 1/19/2006 NR NR NR Hg >480 Hg 14.0 NR 6.7 12.8 NR NR NR NR OHM FFInlet 1/20/2006 NR NR NR Hg >480 Hg 14.3 NR 6.5 12.9 NR NR NR NR OHM FFOutlet 1/18/2006 NR NR NR Hg >480 Hg 11.5 NR 7.4 12.1 NR NR NR NR OHM FFOutlet 1/19/2006 NR NR NR Hg >480 Hg 12.1 NR 7.3 12.1 NR NR NR NR OHM FFOutlet 1/20/2006 NR NR NR Hg >480 Hg 12.0 NR 7.3 12.1 NR NR NR NR OHM FFInlet 1/23/2006 NR NR NR Hg >480 Hg 13.7 NR 6.7 12.8 NR NR NR NR OHM FFOutlet 1/23/2006 NR NR NR Hg >480 Hg 11.7 NR 7.4 12.0 NR NR NR NR OHM FFInlet 1/24/2006 NR NR NR Hg >480 Hg 13.8 NR 6.1 13.1 NR NR NR NR OHM FFOutlet 1/24/2006 NR NR NR Hg >480 Hg 11.6 NR 7.3 12.1 NR NR NR NR OHM FFInlet 2/2/2006 NR NR NR Hg >480 Hg 14.0 NR 6.3 13.1 NR NR NR NR OHM FFOutlet 2/2/2006 NR NR NR Hg >480 Hg 12.2 NR 6.9 12.4 NR NR NR NR OHM FFInlet 2/4/2006 NR NR NR Hg >480 Hg 13.6 NR 6.2 13.1 NR NR NR NR OHM FFOutlet 2/4/2006 NR NR NR Hg >480 Hg 11.8 NR 6.9 12.4 NR NR NR NR OHM FFInlet 2/6/2006 NR NR NR Hg >480 Hg 13.4 NR 6.4 13.2 NR NR NR NR OHM FFOutlet 2/6/2006 NR NR NR Hg >480 Hg 11.6 NR 7.1 12.4 NR NR NR NR OHM FFInlet 2/8/2006 NR NR NR Hg >480 Hg 13.1 NR 6.3 13.0 NR NR NR NR OHM FFOutlet 2/8/2006 NR NR NR Hg >480 Hg 11.3 NR 7.1 12.3 NR NR NR NR OHM FFInlet 2/27/2006 NR NR NR Hg >480 Hg 13.1 NR 7.0 12.4 NR NR NR NR OHM FFOutlet 2/27/2006 NR NR NR Hg >480 Hg 11.5 NR 8.0 11.5 NR NR NR NR OHM FFInlet 2/28/2006 NR NR NR Hg >480 Hg 13.6 NR 7.2 12.2 NR NR NR NR OHM FFOutlet 2/28/2006 NR NR NR Hg >480 Hg 11.8 NR 6.7 12.7 NR NR NR NR OHM FFInlet 3/1/2006 NR NR NR Hg >480 Hg 14.2 NR 5.9 13.4 NR NR NR NR OHM FFOutlet 3/1/2006 NR NR NR Hg >480 Hg 12.5 NR 7.0 12.4 NR NR NR NR OHM FFInlet 3/16/2006 NR NR NR Hg >480 Hg 13.9 NR 6.4 13.1 NR NR NR NR OHM FFOutlet 3/16/2006 NR NR NR Hg >480 Hg 12.1 NR 6.8 12.5 NR NR NR NR OHM FFInlet 3/17/2006 NR NR NR Hg >480 Hg 13.2 NR 6.2 13.2 NR NR NR NR OHM FFOutlet 3/17/2006 NR NR NR Hg >480 Hg 11.0 NR 6.9 12.5 NR NR NR NR OHM FFInlet 3/20/2006 NR NR NR Hg >480 Hg 14.9 NR 7.1 12.2 NR NR NR NR OHM FFOutlet 3/20/2006 NR NR NR Hg >480 Hg 12.2 NR 7.6 11.9 NR NR NR NR OHM FFInlet 3/20/2006 NR NR NR Hg >480 Hg 13.8 NR 6.0 13.3 NR NR NR NR OHM FFOutlet 3/20/2006 NR NR NR Hg >480 Hg 11.2 NR 7.6 11.9 NR NR NR NR OHM FFInlet 3/21/2006 NR NR NR Hg >480 Hg 13.1 NR 6.9 12.5 NR NR NR NR OHM FFOutlet 3/21/2006 NR NR NR Hg >480 Hg 10.4 NR 7.3 12.1 NR NR NR NR OHM FFInlet 3/22/2006 NR NR NR Hg >480 Hg 13.8 NR 6.7 12.9 NR NR NR NR OHM FFOutlet 3/22/2006 NR NR NR Hg >480 Hg 11.3 NR 7.1 12.3 NR NR NR NR OHM

Page 18 of 75

## 8. Sandow Unit 4 Flow Rate and SO2 Study

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) Scrubber B Inlet Duct 4/18/2007 21:21 22:36 1 Flow rate NR Flow rate 15.04 435,270 6.0 13 345 NR 68 1.0 Test Methods 1, 2, 3, 4 Scrubber C Inlet Duct 4/18/2007 21:28 22:46 1 Flow rate NR Flow rate 15.04 422,955 6.0 13 365 NR 68 1.0 Test Methods 1, 2, 3, 4 Scrubber A Outlet Duct - Stratification Test 4/18/2007 3:10 4:19 1 SO2 NR SO2 NR NR NR NR NR NR NR NR 6C Scrubber B Inlet Duct - Stratification Test 4/17/2007 21:01 22:20 1 SO2 NR SO2 15.04 435,270 6.0 13 345 NR 68 1.0 6C Scrubber B Outlet Duct - Stratification Test 4/18/2007 0:38 1:41 1 SO2 NR SO2 15.04 422,955 6.0 13 365 NR NR NR NR Scrubber C Inlet Duct - Stratification Test 4/17/2007 22:37 0:05 1 SO2 NR SO2 15.04 422,955 6.0 13 365 NR 68 1.0 6C Scrubber C Outlet Duct - Stratification Test 4/18/2007 1:54 2:54 1 SO2 NR SO2 15.04 422,955 6.0 13 365 NR NR NR NR

Scrubbers A, B, C Removal Efficiency Tests 4/18/2007 5:05 5:35 1 SO2 NR SO2 NR NR NR NR NR NR NR NR 6C

Scrubbers A, B, C Removal Efficiency Tests 4/18/2007 21:46 22:46 1 SO2 NR SO2 NR NR NR NR NR NR NR NR 6C



## 10. Monticello Units 2 and 3 Stacks, Test of SO2 and H2SO4 on PM

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs 1-Unit 2 8/24/2006 20:10 21:51 1 PM NR 1-PM, SO2 13.8 1,428,084 6.4 14.0 NR NR NR NR 1, 5 2-Unit 2 8/24/2006 23:10 0:48 1 PM NR 2-PM, SO2 13.8 1,424,006 6.3 14.5 NR NR NR NR 1, 5 3-Unit 2 8/25/2006 1:42 3:09 1 PM NR 3-PM, SO2 13.8 1,422,828 6.2 15.0 NR NR NR NR 1, 5

1-Unit 3 8/23/2006 8:25 9:50 1 PM NR 1-PM, SO2 17.9 2,330,743 8.6 13.0 NR NR NR NR 1, 5 2-Unit 3 8/23/2006 11:01 12:22 1 PM NR 2-PM, SO2 18.4 2,296,399 8.0 13.0 NR NR NR NR 1, 5 3-Unit 3 8/23/2006 13:05 14:27 1 PM NR 3-PM, SO2 18 2,295,312 8.6 13.5 NR NR NR NR 1, 5

Note:
1Based on 4, 30-minute runs for sulfuric acid and sulfur trioxide



## 11. Monticello Unit 3 Ammonia/ESP Study, w/Ammonia Injection

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs ESP Inlet
Page 19 of 75Run 1 10/25/2005 11:10 13:05 1 Hg 847 Run 1-Hg 12.16 NR 7.0 NR NR NR NR NR OHM

Run 2 10/25/2005 13:50 15:31 1 Hg 840 Run 2-Hg 12.3 NR 6.0 NR NR NR NR NR OHM Run 3 10/25/2005 16:21 18:01 1 Hg 799 Run 3-Hg 12.3 NR 6.0 NR NR NR NR NR OHM ESP Outlet Run 1 10/25/2005 11:10 12:51 1 Hg 847 Run 1-Hg 10.9 NR 8.5 NR NR NR NR NR OHM Run 2 10/25/2005 13:50 15:28 1 Hg 841 Run 2-Hg 11.9 NR 8.0 NR NR NR NR NR OHM Run 3 10/25/2005 16:21 18:00 1 Hg 799 Run 3-Hg 11.8 NR 8.0 NR NR NR NR NR OHM



## 11. Monticello Unit 3 Ammonia/ESP Study, w/o Ammonia Injection

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs ESP Inlet Run 1 10/25/2005 9:40 11:20 1 Hg 847 Run 1-Hg 12.2 NR 6.5 NR NR NR NR NR OHM Run 2 10/25/2005 12:52 14:35 1 Hg 844 Run 2-Hg 11.8 NR 6.5 NR NR NR NR NR OHM Run 3 10/25/2005 15:07 16:46 1 Hg 827 Run 3-Hg 12 NR 6.5 NR NR NR NR NR OHM ESP Outlet Run 1 10/26/2005 9:40 11:20 1 Hg 846 Run 1-Hg 12 NR 9.0 NR NR NR NR NR OHM Run 2 10/26/2005 12:52 14:30 1 Hg 846 Run 2-Hg 11.5 NR 7.5 NR NR NR NR NR OHM Run 3 10/26/2005 15:00 16:38 1 Hg 840 Run 3-Hg 11.6 NR 7.5 NR NR NR NR NR OHM



## 12. CEM Validation at Big Brown Unit 1

This study compared mercury CEM data to sorbent trap data collected in six paired instantaneous samples. No runs were performed and no operating parameters corresponding to those sampling times were reported.



## 13. Monticello Unit 1 Baseline Studies

RUN ID Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test %lig/subbit. Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs 54/46 10-8/10-9/2005 NR NR NR Hg 490 Hg 13.1 NR 6.1 NR 365 NR NR NR OHM, APK 53/47 10-9/10-10/2005 NR NR NR Hg 462 Hg 12.8 NR 6.6 NR 323 NR NR NR 49/51 10-10/10-11/2005NR NR NR Hg 524 Hg 14.0 NR 6.0 NR 360 NR NR NR 50/50 10-11/10-12/2005NR NR NR Hg 518 Hg 13.7 NR 6.0 NR 360 NR NR NR 49/51 10-12/10-13/2005NR NR NR Hg 551 Hg 13.1 NR 6.8 NR 365 NR NR NR 53/47 10-13/10-14/2005NR NR NR Hg 579 Hg 14.0 NR 6.5 NR 365 NR NR NR 50/50 10-14/10-15/2005NR NR NR Hg 479 Hg 13.6 NR 6.6 NR 374 NR NR NR 57/43 10-15/10-16/2005NR NR NR Hg 379 Hg 14.7 NR 6.9 NR 358 NR NR NR 49/51 10-16/10-17/2005NR NR NR Hg 448 Hg 13.8 NR 7.0 NR 358 NR NR NR 50/50 10-17/10-18/2005NR NR NR Hg 547 Hg 13.6 NR 6.6 NR 365 NR NR NR



## 13. Martin Lake Unit 2 Baseline Studies

RUN ID Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test %lig/subbit. Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs OHM, APK 90/10 10-20/10-21/2005NR NR NR Hg 856 Hg 19.7 NR 6.8 NR 177 NR NR NR 90/10 10-21/10-22/2005NR NR NR Hg 856 Hg 19.9 NR 6.6 NR 163 NR NR NR 92/8 10-23/10-24/2005NR NR NR Hg 750 Hg 18.0 NR 9.3 NR 156 NR NR NR 91/9 10-24/10-25/2005NR NR NR Hg 859 Hg 17.1 NR 8.0 NR 167 NR NR NR 91/9 10-25/10-26/2005NR NR NR Hg 849 Hg 17.2 NR 8.0 NR 172 NR NR NR 91/9 10-26/10-27/2005NR NR NR Hg 855 Hg 16.3 NR 7.9 NR 173 NR NR NR 91/9 10-27/10-28/2005NR NR NR Hg 852 Hg 16.7 NR 7.9 NR 177 NR NR NR



## 14. Big Brown Unit 1 Stack - Mercury Study

Page 20 of 75Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test

RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs Run 1A 1/10/2005 14:03 17:03 3 Hg-Vapor 529-630 Run 1A-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 1B 1/10/2005 14:03 17:03 3 Hg-Vapor 529-630 Run 1B-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 2A 1/10-11/2005 18:15 6:15 12 Hg-Vapor 630-252 Run 2A-Hg NR NR NR 10.9 NR NR NR NR Draft Method 324 (current APK) Run 2B 1/10-11/2005 18:15 6:15 12 Hg-Vapor 630-252 Run 2B-Hg NR NR NR 10.9 NR NR NR NR Draft Method 324 (current APK) Run 3A 1/11/2005 7:38 10:38 3 Hg-Vapor 536-630 Run 3A-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 3B 1/11/2005 7:38 10:38 3 Hg-Vapor 536-630 Run 3B-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 4A 1/11/2005 11:13 14:13 3 Hg-Vapor 536-630 Run 4A-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 4B 1/11/2005 11:13 14:13 3 Hg-Vapor 536-630 Run 4B-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 5A 1/11/2005 14:42 17:42 3 Hg-Vapor 536-630 Run 5A-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 5B 1/11/2005 14:42 17:42 3 Hg-Vapor 536-630 Run 5B-Hg NR NR NR 13.4 NR NR NR NR Draft Method 324 (current APK) Run 6A 1/11-12/2005 18:26 6:26 12 Hg-Vapor 536-252 Run 6A-Hg NR NR NR 12 NR NR NR NR Draft Method 324 (current APK) Run 6B 1/11-12/2005 18:26 6:26 12 Hg-Vapor 536-252 Run 6B-Hg NR NR NR 12 NR NR NR NR Draft Method 324 (current APK)



## 15. Sandow Unit 4 Air Preheater, ESP, and Stack

Test Test Run Time range used for Unit Load Run & MoistureFlow RateOxygenCO2Flue gasFlue gasStandardStandard Sampling Test RUN ID Date Start timeEnd timeTime (hrs) these pollutants MW Sampling Train % dscfm dry %dry %temp (F)press (atm)temp (F)press (atm) Method(s) - All Runs Boiler Outlet

1Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 15.72 NR 2.2 NR 842 NR NR NR 1, 2, 3, 4, 17, 201A, 202 2Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 NA NR 2.3 NR 845 NR NR NR 1, 2, 3, 4, 17, 201A, 202 3Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 16.45 NR 3.1 NR 837 NR NR NR 1, 2, 3, 4, 17, 201A, 202 ESP Inlet 1Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 15.26 NR 5.8 NR 397 NR NR NR 1, 2, 3, 4, 17, 201A, 202 2Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 14.42 NR 6 NR 396 NR NR NR 1, 2, 3, 4, 17, 201A, 202 3Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 15.4 NR 3.4 NR 401 NR NR NR 1, 2, 3, 4, 17, 201A, 202 Stack 1Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 NA NR 7.2 NR 185 NR NR NR 1, 2, 3, 4, 17, 201A, 202 2Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 18.24 NR 7.2 NR 183 NR NR NR 1, 2, 3, 4, 17, 201A, 202 3Feb. 2005 NR NR 1 PM, SO2 NR PM, SO2 18.51 NR 7.2 NR 187 NR NR NR 1, 2, 3, 4, 17, 201A, 202 4Feb. 2005 NR NR 1 HCl, HF NR HCl, HF NR NR NR NR NR NR NR NR 26A 5Feb. 2005 NR NR 1 HCl, HF NR HCl, HF NR NR NR NR NR NR NR NR 26A 6Feb. 2005 NR NR 1 HCl, HF NR HCl, HF NR NR NR NR NR NR NR NR 26A Stack 12/25/2005 16:40 18:05 1 Total VOC as propane NR NR NR NR NR NR NR NR NR NR 22/25/2005 19:15 20:31 1 Total VOC as propane NR NR NR NR NR NR NR NR NR NR 32/25/2005 21:13 22:28 1 Total VOC as propane NR NR NR NR NR NR NR NR NR NR

Page 21 of 75

## TABLE 2-21 EMISSIONS TESTING DATA (Test Reports 1, 2, 3, 8, 10, 13, 15) ICR Part 2, Question 12



# 1. Oak Grove Unit 1 - Dec. 19-20, 2009 Stack Testing

Pollutant Run 1 Run 2 Run 3 Units Comment

Total PM Concentration - 0.0035 0.0029 0.0025grains/dscfFront half plus back half

Emission Rate - 53.46 47.48 39.93 lb/hr Emission Factor -0.0067 0.0060 0.0051lb/MMBtu

PM (filterable)Concentration - 5.16E-084.15E-089.39E-08 lb/dscfFront half

Emission Rate - 5.56 4.75 10.62 lb/hr Emission Factor -0.0007 0.0006 0.0014lb/MMBtu

NOx Concentration - 35.22 37.8 37.6 ppm vd Emission Rate - 473 497 511 lb/hr Emission Factor - 0.06 0.06 0.06 lb/MMBtu

SO2 Concentration - 22.88 23.3 22.5 ppm vd Emission Rate - 427 426 425 lb/hr Emission Factor -0.054 0.054 0.054 lb/MMBtu

CO Concentration - 135.3 137.8 123.0 ppm vd Emission Rate - 1,105 1,102 1,017 lb/hr Emission Factor - 0.14 0.14 0.13 lb/MMBtu

THC Concentration - 1.2 1.6 1.0 ppm vdas propane Emission Rate - NR NR NR lb/hr Emission Factor - NR NR NR lb/MMBtu

Methane Concentration - 0.4 0.3 0.4 ppm vd Emission Rate - NR NR NR lb/hr Emission Factor - NR NR NR lb/MMBtu
Page 22 of 75

### HF Concentration -<1.05E-08<1.12E-08<1.08E-08lb/dscf Emission Rate - <1.070 <1.112 <1.078 lb/hr Emission Factor -<0.00014<0.00014<0.00014lb/MMBtu

HCl Concentration -<1.73E-08<1.81E-08<1.77E-08lb/dscf

Emission Rate - <1.758 <1.803 <1.770 lb/hr Emission Factor -<0.00022<0.00023<0.00023lb/MMBtu



# 2. SandowStation - Stack 5A, Oct - Nov 2009 Testing

Run 1 Run 3 Run 4 Pollutant 10/28/200910/30/200911/5/2009 Units Comment

Total PM Concentration - 0.0084 0.0312 0.0098 gr/dscfPg 15 Total Catch

Emission Rate - 41.79 167.14 51.25 lb/hr Emission Factor -0.015 0.056 0.017 lb/MMBtu

PM (filterable)Concentration - 0.0008 0.0001 0.0002 gr/dscfPg 15 Probe and Filter Catch

Emission Rate - 3.97 0.69 0.80 lb/hr Emission Factor -0.001 <0.001 <0.001lb/MMBtu

Total PM10 Concentration - 0.0144 0.0124 0.0181 gr/dscfPg 3 Total and pg B-19

Emission Rate - 75.38 70.04 99.21 lb/hr Emission Factor -0.025 0.022 0.032 lb/MMBtu

PM10 (filterable)Concentration - 0.0002 0.0003 0.0008 gr/dscfPg 3 Front Half and pg 14

Emission Rate - 0.92 1.72 4.19 lb/hr Emission Factor -< 0.001 0.001 0.001 lb/MMBtu

NOx Concentration - 48.84 56.29 53.82 ppm vd Emission Rate - 203.59 252.33 244.91 lb/hr Emission Factor -0.069 0.082 0.085 lb/MMBtu

SO2 Concentration - 3.01 4.52 28.26 ppm vd Emission Rate - 17.44 28.17 178.79 lb/hr Emission Factor -0.006 0.009 0.062 lb/MMBtu Page 23 of 75

### CO Concentration - 4.55 4.69 3.97 ppm vd Emission Rate - 11.55 12.26 11 lb/hr Emission Factor - NR NR NR lb/MMBtu

THC Concentration - 0.37 0.07 <0.12 ppm vdas propane Emission Rate - NR NR NR lb/hr Emission Factor - NR NR NR lb/MMBtu

Methane Concentration - 3.22 5.09 3.31 ppm vd Emission Rate - NR NR NR lb/hr Emission Factor - NR NR NR lb/MMBtu

HF Concentration - <0.04 <0.05 <0.03 ppm vd Emission Rate - <0.07 <0.10 <0.05 lb/hr Emission Factor - NR NR NR lb/MMBtu

HCl Concentration - <0.02 <0.04 <0.01 ppm vd Emission Rate - <0.07 <0.13 <0.01 lb/hr Emission Factor - NR NR NR lb/MMBtu


# 2. SandowStation - Stack 5B, Nov 2009 Testing

Run 1 Run 3 Run 4 Pollutant 11/1/200911/2/200911/5/2009 Units Comment

Total PM Concentration - 0.0112 0.0144 0.0096 gr/dscfPg 24 Total Catch

Emission Rate - 61.15 78.01 52.05 lb/hr Emission Factor -0.020 0.026 0.017 lb/MMBtu

PM (filterable)Concentration - 0.0034 0.0040 0.0024 gr/dscfPg 24 Probe and Filter Catch

Emission Rate - 18.55 21.92 13.17 lb/hr Emission Factor -0.006 0.007 0.004 lb/MMBtu

Total PM10 Concentration - 0.0132 0.0068 0.0109 gr/dscfPg 5 Total and pg B-31

Emission Rate - 70.36 36.08 60.38 lb/hr Emission Factor -0.024 0.012 0.020 lb/MMBtu

Page 24 of 75

### PM10 (filterable)Concentration - 0.0007 0.0011 0.0011 gr/dscfPg 5 Front Half and pg 23 Emission Rate - 3.55 5.75 5.99 lb/hr Emission Factor -0.001 0.002 0.002 lb/MMBtu

NOx Concentration - 49.95 43 48.28 ppm vd Emission Rate - 234.33 199.14 223.77 lb/hr Emission Factor -0.075 0.063 0.073 lb/MMBtu

SO2 Concentration - 10.51 26.98 8.8 ppm vd Emission Rate - 69.24 173.71 56.7 lb/hr Emission Factor -0.022 0.055 0.019 lb/MMBtu

CO Concentration - 4.49 8.64 6.75 ppm vd Emission Rate - 12.96 24.37 19.06 lb/hr Emission Factor - Not Reported

THC Concentration - <0.12 <0.12 <0.12 ppm vdas propane Emission Rate - Not Reported Emission Factor - Not Reported

Methane Concentration - 2.92 2.86 3.18 ppm vd Emission Rate - Not Reported Emission Factor - Not Reported

HF Concentration - <0.01 <0.01 <0.04 ppm vd Emission Rate - <0.01 <0.01 <0.07 lb/hr Emission Factor - NR NR NR lb/MMBtu

HCl Concentration - <0.01 <0.01 <0.06 ppm vd Emission Rate - <0.01 <0.01 <0.22 lb/hr Emission Factor - NR NR NR lb/MMBtu



# 3. SandowStation 5A and 5B Inlet Ducts, Oct - Nov 2009 Testing

5A Scrubber Inlet Duct Run 1 Run 3 Run 4 Units Pollutant 10/28/200910/30/200911/5/2009 Page 25 of 75

### 12:07-15:0715:35-18:4813:10-15:18

HF Concentration - <0.01 <0.01 <0.01 ppm vd Emission Rate - <0.004 <0.003 <0.007 lb/hr Emission Factor -<0.001 <0.001 <0.001lb/MMBtu

HCl Concentration - 0.61 1.76 0.54 ppm vd Emission Rate - 1.863 5.65 1.81 lb/hr Emission Factor -0.001 0.002 0.001 lb/MMBtu

5B Scrubber Inlet Duct Run 1 Run 3 Run 4 Units Pollutant 10/31/200911/1/200911/2/2009 22:25-0:5816:45-19:3713:29-15:37 HF Concentration - <0.01 <0.01 <0.01 ppm vd Emission Rate - <0.008 <0.010 <0.007 lb/hr Emission Factor -<0.001 <0.001 <0.001lb/MMBtu

HCl Concentration - 0.53 0.3 0.39 ppm vd Emission Rate - 1.672 1.052 1.317 lb/hr Emission Factor -0.001 <0.001 <0.001lb/MMBtu

5A Scrubber Inlet Duct Run 1 Run 1B Run 3 Run 3B Run 4 Run 4B Units 10/28/200910/28/200910/30/200910/30/200911/5/200911/5/2009 12:07-15:0317:28-18:389:58-11:5015:35-18:438:30-11:4413:13-15:13 SO2 Concentration - 27.31 26.38 9.31 13.35 <0.01 1.36 ppm vd Emission Rate - 147.37 164.31 54.31 75.3 <0.06 7.97 lb/hr Emission Factor -0.057 0.055 0.019 0.027 <0.001 0.003 lb/MMBtu

5B Scrubber Inlet Duct Run 1 Run 1B Run 2 Run 2B Run 3 Run 3B Units 10/31/200910/31/200911/1/200911/1/200911/2/200911/2/2009 18:14-20:5822:23-1:442:01-4:2516:45-19:440:10-2:3113:29-15:39 SO2 Concentration - <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ppm vd Emission Rate - <0.06 <0.06 <0.05 <0.06 <0.05 <0.06 lb/hr Emission Factor -<0.001 <0.001 <0.001 <0.001 <0.001 <0.001lb/MMBtu

Page 26 of 75

# 8. SandowUnit 4 FlowRate and SO2 Study

Tested Scrubber A InletScrubber A OutletScrubber B

InletScrubber B

OutletScrubber C

InletScrubber C

Outlet 4/18/2007 SO2 (ppm)SO2 (ppm)SO2 (ppm)SO2 (ppm)SO2 (ppm)SO2 (ppm)Notes

1799.0 18.6 1799.0 13.6 1825.5 2.5 15% Bypass 1799.4 19.4 1799.4 61.1 1822.3 25.8 15% Bypass 1759.2 26.2 1759.2 20.2 1783.3 5.1 0% Bypass



# 10. Monticello Units 2 and 3 Stacks, Test of SO2 and H2SO4 on PM

Conc (mg/dscm)Emission

Rate (lb/hr)Conc

(mg/dscm)Emission

Rate (lb/hr)Conc

(mg/dscm)Emission

Rate (lb/hr) PM-Front-half 50.1 268 46.5 248 57.0 304 PM-Back-half 24.4 130 116 618 22.2 118 PM-Total 74.4 398 162 866 79.3 422

Sulfur Dioxide - Unit 2 Run 1 Run 2 Run 3 SO2 (mg/dscf) 49.26 31.93 67.05 SO2 (ppm) 652 423 888 SO2 (lb/hr) 9,305 6,015 12,620

Conc (mg/dscm)Emission

Rate (lb/hr)Conc

(mg/dscm)Emission

Rate (lb/hr)Conc

(mg/dscm)Emission

Rate (lb/hr) PM-Front-half 38.8 339 9 77.4 61.8 159 PM-Back-half 13.2 115 13 112 83 103 PM-Total 52 454 22 189 145 163

Sulfur Dioxide - Unit 3 Run 1 Run 2 Run 3 SO2 (mg/dscf) 28.31 32.51 35.42 SO2 (ppm) 375 431 469 SO2 (lb/hr) 8,728 9,876 10,755 Unit 3 Stack - Aug 23, 2006 Run 1 Run 2 Run 3 Run 1 Run 2 Run 3 Scrubber Removal Efficiency Tests

Unit 2 Stack - Aug 24-25, 2006

Page 27 of 75

# 13. Monticello Unit 1 Baseline Studies

10/9/2005Run1 Run 2 Run 3 HCl Concentration - 1.69 1.50 1.57 ppm



# 13. Martin Lake Unit 2 Baseline Studies

10/24/2005Run1 Run 2 Run 3 Run 4 HCl Concentration - 0.83 0.65 0.71 NA ppm



# 15. SandowUnit 4 Air Preheater, ESP, and Stack - Feb 2005

Run 1 Run 2 Run 3 Run 1 Run 2 Run 3 Boiler Outlet 7.57 No data 6.21 7.51 No data 6.13 ESP Inlet 0.251 

### 14.41 12.47 0.221 

### 14.2 12.46 Stack No data 0.0136 0.0114 No data 0.0036 0.0069

Run 1 Run 2 Run 3 Run 4 Run 5 Run 6 Run 4 Run 5 Run 6 Boiler Outlet 1,568.24 1,804.58 1,758.98 5.7 NA NA NA NA NA ESP Inlet 2.092 

### 1,165.59 942.34 6.17 NA NA NA NA NA Stack 406.25 389.84 415.65 5.70 6.17 6.47 2.45 2.34 4.03
2

### The run indicates low

moisture content and low sulfur dioxide content, which probably means the sample train had a leak somewhere during the sample run. HF (lb/hr) Total PM (grains/dscf) Front-half PM (grains/dscf)

1

### Anomalous result. The total particulate catch is much lower than the other two runs. However, the moisture content measured during the run with this train is consistent with the other runs.

SO2 (ppm) HCl (lb/hr)

Page 28 of 75

### ppm lb/mmBtu lb/hr

Run 1 9.7 0.018 103.97 Run 2 57.1 0.096 614.9 Run 3 4.6 0.008 49.72

Total VOC as Propane--Stack (dry)

Page 29 of 75

## TABLE 2-22 EMISSIONS TESTING, METALS DATA (Test Reports 1, 2, 3, 11, 12, 13, 14) ICR Part 2, Question 12



## 1. Oak Grove Unit 1 Stack

Pollutant Antimony 0.094 0.0218 0.096 0.224 0.093 0.022 Arsenic 0.012 0.0027 0.012 0.0028 0.01 0.0023 Barium 0.085 0.197 0.092 0.214 0.064 0.0153 Beryllium 0.004 0.0009 0.004 0.009 0.004 0.0009 Boron 1.899 0.4402 1.911 0.4475 1.51 0.3584 Cadmium 0.014 0.0032 0.014 0.0033 0.013 0.003 Chromium 0.249 0.5780 0.243 0.57 0.256 0.0608 Cobalt NA NA NA NA NA NA Copper 0.081 0.0188 0.066 0.0155 0.067 0.016 Lead 0.02 0.0046 0.043 0.0102 0.029 0.0069 Manganese 0.147 0.34 0.158 0.369 0.132 0.0314 Mercury NR 0.038 NR 0.033 NR 0.031 Nickel 0.449 0.1041 0.7 0.1639 0.624 0.1481 Selenium 0.079 0.0184 0.081 0.0189 0.072 0.0171 Silver 0.056 0.0131 0.052 0.0123 0.046 0.0109 Vanadium 0.017 0.004 0.014 0.033 0.014 0.0033 Zinc 1.273 0.2951 0.771 0.1805 0.782 0.1856



## 2. Sandow Station - Stack 5A

Pollutant Antimony <1.268 <0.0028 0.553 0.0013 0.788 0.0018 Arsenic <0.772 <0.0017<0.755 <0.0017 <0.738 <0.0017 Barium 0.772 0.0017 1.207 0.0028 0.689 0.0016 Beryllium <0.551 <0.0012<0.503 <0.0012 <0.492 <0.0011 Cadmium <0.606 <0.0013<0.553 <0.0013 0.542 0.0013 Chromium 1.047 0.0023 1.157 0.0027 0.591 0.0014 Cobalt <5.513 <0.0122<5.03 <0.0116 <4.923 <0.0114 Copper 1.323 0.0029 2.012 0.0046 0.788 0.0018 Lead <1.544 <0.0034<1.559 <0.0036 <1.428 <0.0033 Manganese 0.827 0.0018 2.716 0.0063 0.689 0.0016 Nickel 1.874 0.0041 1.459 0.0034 0.788 0.0018 Selenium <0.717 <0.0016<0.604 <0.0014 <0.591 <0.0014 Vanadium <3.142 <0.0069<2.968 <0.0068 <2.905 <0.0067 Mercury <2.315 <0.0051<1.811 <0.0042 <2.068 <0.0048



## 2. Sandow Station - Stack 5B

Pollutant Antimony <1.080 <0.0026<1.149 <0.0027 <1.088 <0.0026 Arsenic <0.648 <0.0015<0.663 <0.0016 <0.753 <0.0018 Barium 2.896 0.0069 3.624 0.0085 3.851 0.0092 (ug/dscm) (ug/dscm)

Run 3 10/31/2009 11/5/2009 (lb/hr) (ug/dscm) (lb/hr) (lb/hr)

(ug/dscm) (ug/dscm) (lb/hr) (ug/dscm) (lb/hr)

(ug/dscm) 10/28/2009 10/30/2009 Run 1 Run 2 Run 3

Run 1 Run 2 12/20/2009

Run 1 Run 3 Run 4 (ug/dscm) 12/20/2009 12/20/2009

11/1/2009 11/2/2009(lb/hr)

(lb/hr) (lb/hr) (ug/dscm) (lb/hr)

Page 30 of 75Beryllium <0.432 <0.0010<0.442 <0.001 <0.419 <0.001

Cadmium <0.475 <0.0011 0.486 0.0011 <0.628 <0.0015 Chromium 0.821 0.0020 0.884 0.0021 1.088 0.0026 Cobalt <4.322 <0.0103<2.475 <0.0058 <4.186 <0.0100 Copper 1.642 0.0039 2.254 0.0053 2.804 0.0067 Lead <1.34 <0.0032 1.149 0.0027 <1.088 <0.0026 Manganese 1.426 0.0034 1.812 0.0043 8.162 0.0195 Nickel 1.253 0.0030 1.061 0.0025 1.214 0.0029 Selenium <0.821 <0.0020<0.884 <0.0021 <0.921 <0.0022 Vanadium <4.149 <0.0099<4.375 <0.0103 <4.479 <0.0107 Mercury <1.253 <0.0030<2.033 <0.0048 <0.879 <0.0021



## 3. Sandow Station Stacks 5A and 5B

Mercury 2.164 0.005 3.177 0.008 1.952 0.005

Mercury 1.238 0.003 1.657 0.004 2.018 0.005



## 11. Monticello Unit 3 Mercury Measurements

ESP Inlet Run 1 Run 2 Run 3 ESP Outlet Run 1 Run 2 Run 3

ESP Inlet Run 1 Run 2 Run 3 ESP Outlet Run 1 Run 2 Run 3



## 12. Big Brown Unit 1 CEM Validation Study

Date 10/25/2005 10/25/2005 10/25/2005 7.06

19.5 15.43

10.67

6.31 8.79 1.82

16.10

12.23 9.09 Elemental Hg

5.42

13.51 10.43 7.95

<0.08 8.85 7.05 Particulate Hg

7.39

<0.11 <0.08 4.43 9.00

5.46

16.34 14.26 15.96

14.46 4.20 5.87

<0.08 <0.09 Oxidized Hg Elemental Hg With Ammonia Injection (ug/Nm3) - 10/25/2005 Particulate Hg 13.03 4.19

Without Ammonia Injection (ug/Nm3) - 10/26/2005 11.25 10.73 (ug/dscm) (lb/hr) (ug/dscm) (lb/hr)

(ug/dscm) (lb/hr) (ug/dscm) (lb/hr) Run 1 Run 4 Run 5 Stack 5A

<0.11 10.20

Oxidized Hg

8:55 (ug/dscm) (lb/hr)

STM Hg

12:07 CEM Hg

ug/m3 ug/m3 Time

20.1

21.9 10:40 10/28/2009 11/5/2009

22.4 23.2 20.4 11/5/2009

11/1/2009 11/2/2009 11/1/2009 (ug/dscm) (lb/hr)

Stack 5B Run 2 Run 3 Run 4

Page 31 of 7511/10/2005

11/10/2005 11/10/2005

"STM" refers to sorbent trap method.



## 13. Monticello Unit 1 Baseline Studies

ESP Testing Hg0 HgVT Hg0 HgVT
10/11/2005 (ug/m3) (ug/m3) (ug/m3) (ug/m3) Test 1 9.73 29.83 10.51 20.17 Test 2 10.79 20.21 10.3 22.17 10/12/2005 Test 1 6.53 26.13 8.32 16.77 Test 2 7.25 15.25 9.01 17.21

Stack Testing Hg0 HgVT Hg0 HgVT Hg0 HgVT

(ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) 10/8/2005 Run 1 7.69 18.08 6.7 18.27 NA 14.38 Run 2 6.69 17.3 7.08 18.18 NA 14.38 10/9/2005 Run 1 8.81 17.69 9.46 19.00 NA 17.56 Run 2 11.69 21.22 10.54 20.51 NA 17.56 10/10/2005 Run 1 5.74 11.06 5.49 12.07 NA 15.57 Run 2 8.89 17.82 7.63 18.28 NA 15.57 10/11/2005 Run 1 7.44 17.36 6.77 17.52 NA 16.29 Run 2 5.48 16.34 6.08 17.19 NA 16.29 10/12/2005 Run 1 6.10 12.95 4.72 14.98 NA 16.15 Run 2 6.29 13.73 6.56 16.44 NA 16.15 10/13/2005 Run 1 7.21 19.08 6.34 18.57 NA 17.45 Run 2 7.34 15.74 7.45 18.73 NA 17.45

Hg0 HgVT Hg0 HgVT Hg0 HgVT Hg0 HgVT (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) 10/14/2005 Run 1 7.21 17.54 7.06 18.11 4.6 19.07 NA 18.27 Run 2 7.34 17.48 6.56 19.52 4.6 19.07 NA 18.27 10/15/2005 Run 1 85.11 8.13 4.54 10.77 4.55 10.77 NA 15.88 Run 2 7.60 13.56 6.31 16.38 7.50 16.38 NA 15.88 10/16/2005 Run 1 8.09 20.83 6.88 20.04 6.21 18.13 NA 14.22 Run 2 6.67 14.34 6.59 16.62 4.27 12.18 NA 14.22 10/17/2005 Run 1 6.85 10.37 6.88 9.60 7.21 14.92 NA 15.06 ESP Outlet (OHM)



### Oct 8 - 13, 2005

Stack Outlet SCEM Stack Outlet CMM1 Stack OHM Stack Outlet SCEM Stack Outlet APK

Stack OHM Stack Outlet APK 11:52



### Oct 14 - 17, 2005 ESP Inlet (OHM) 10:26 32.2

31.8 32.3 31.4 33.7

33.4 8:56

Page 32 of 75Run 2 7.21 12.73 6.59 9.90 6.68 9.26 NA 15.06

Notes: APK = Appendix K sorbent trap method Hg0= Elemental mercury HgVT= Total vapor mercury OHM = Ontario Hydro Method CMM = Continuous Mercury Monitoring



## 13. Martin Lake Unit 2 Baseline Studies

FGD Testing22% by pass for each FGD test run

FGD Inlet (OHM) Stack (OHM) Hg0 HgVT Hg0 HgVT
10/27/2005 ug/m3 ug/m3 ug/m3 ug/m3 Test 1 9.08 18.07 10.31 14.26 Test 2 8.15 19.53 9.4 11.11 10/28/2005 Test 1 12.25 19.45 10.28 13.25 Test 2 9.17 18.95 8.66 13.10

ESP Testing ESP Inlet (OHM) Hg0 HgVT
10/28/2005 ug/m3 ug/m3 Test 1 14.76 22.68 Test 2 9.05 18.63 10/28/2005 Test 1 9.09 23.39 Test 2 8.46 18.66

Hg0 HgVT Hg0 HgVT Hg0 HgVT Hg0 HgT (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) 10/20/2005 Run 1 11.23 16.98 9.34 15.97 7.98 15.84 NA 2.1 Run 2 9.88 12.61 9.77 14.62 7.11 15.14 NA 2.1 10/21/2005 Run 1 10.36 16.72 9.44 16.17 7.98 15.84 NA 2.02 Run 2 10.11 11.53 8.95 14.16 7.11 15.14 NA 2.02 10/23/2005 Run 1 8.18 10.18 7.58 9.13 5.90 7.33 NA 2.4 Run 2 7.24 8.11 7.17 9.19 6.15 6.75 NA 2.4 10/25/2005 Run 1 11.14 15.72 9.55 13.75 9.43 13.95 NA 2.27 Run 2 11.34 13.81 10.46 13.64 8.72 14.52 NA 2.27 10/26/2005 Run 1 10.63 12.40 10.13 13.51 9.34 15.77 NA 2.22 Run 2 9.50 12.91 10.37 12.51 7.55 13.91 NA 2.22 10/27/2005 Run 1 10.31 14.26 10.52 14.09 7.11 13.91 NA 2.15 Run 2 9.40 11.11 8.53 12.24 7.08 15.04 NA 2.15 10/28/2005 Run 1 10.28 13.25 9.85 13.31 NA NA NA 2.17 Run 2 8.66 13.10 8.54 11.45 NA NA NA 2.17 

### Oct 20 - 28, 2005

Stack Outlet APK Stack OHM Stack Outlet SCEM Stack Outlet CMM1

Page 33 of 75Notes:

APK = Appendix K sorbent trap method Hg0= Elemental mercury HgVT= Total vapor mercury OHM = Ontario Hydro Method CMM = Continuous Mercury Monitoring



## 14. Big Brown Unit 1 Stack - Mercury Study

Run 1A Run 1B Run 2A Run 2B Run 3A Run 3B Run 4A Run 4B Run 5A Run 5B Run 6A Run 6B 17.5

16.6 17.1

16.6 14.0 17.0 19.0 17.2 17.8

14.5 22.65 23.19 Hg Vapor (lb/Tbtu) 18.5

22.45

15.27 15.89 Hg Vapor (ug/dNm3)

20.86 20.84 20.27 20.30 18.4 21.43 17.08 17.73

Page 34 of 75

## TABLE 2-23 EMISSIONS TESTING, MERCURY ACI STUDIES (Test Reports 4, 5, 6, 7) ICR Part 2, Question 12

Notes: All concentrations reported as ug/dscm (corrected to 3% oxygen) unless otherwise noted APK = Appendix K sorbent trap method Hg0

### = Elemental mercury HgT

### = Total mercury OHM = Ontario Hydro Method CMMS = Continuous Mercury Monitoring System TBtu = Trillion Btu NA = Not Analyzed 

## 4. Martin Lake Unit 3 ACI Testing on Mercury Removal

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 20.4528.7917.6426.88 18.8827.86 Boiler Outlet (lb/TBtu) 14.5220.4412.52 19.09 13.4019.78 Boiler Outlet CEMS 18.5026.0018.5026.00 18.5026.00 Stack OHM 12.4613.61 10.45 12.40 9.57 11.59 Stack (lb/TBtu) 8.85 9.99 7.42 8.80 6.80 8.23 Stack CEMS 11.0013.0011.0013.00 NA NA

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 13.8720.4517.4524.94 15.0421.29 Boiler Outlet (lb/TBtu) 9.85 14.5212.39 17.71 10.68 15.12 Boiler Outlet CEMS 18.5021.0018.5021.00 18.5020.00 Stack OHM 7.85 9.53 8.12 10.85 5.31 7.43 Stack (lb/TBtu) 5.57 6.77 5.77 7.70 3.77 5.27 89% 87% 66% 11% 13% 34%

Martin Lake -- Baseline Testing, 7/25/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 7:55-9:24 9:50-11:35 Martin Lake -- Baseline Testing, 7/24/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 8:00-9:20 10:00-11:10 12:20-13:40

11:45-13:40

Page 35 of 75

### Stack CEMS 11.0013.0011.0013.00 NA NA

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 14.6523.5014.5922.96 15.3125.2615.3325.70 Boiler Outlet (lb/TBtu) 10.4016.6810.3616.30 10.87 17.9410.8918.24 Boiler Outlet CEMS 16.5022.0016.5022.00 16.5022.0016.5022.00 Stack OHM 6.49 8.94 5.60 7.49 6.24 7.64 6.50 8.19 Stack (lb/TBtu) 4.61 6.35 3.98 5.32 4.47 5.43 4.62 5.81 Stack CEMS 5.60 7.80 5.60 7.80 5.60 7.80 5.60 7.80

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 12.5421.71 11.9419.01 12.7121.70 Boiler Outlet (lb/TBtu) 8.65 14.98 8.24 13.12 8.77 14.97 Boiler Outlet CEMS 13.5022.1013.5022.10 13.5022.10 Stack OHM 4.24 5.37 3.73 5.26 2.60 6.10 Stack (lb/TBtu) 2.92 3.71 2.57 3.63 1.80 4.21 Stack CEMS 3.60 4.80 3.60 4.80 3.60 4.80

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### 22%

11% 12% 33%

Run 1 (ug/dscm)Run 2 (ug/dscm) 8:05-09:27 9:50-11:35 11:45-13:40

89%

Martin Lake -- ACI Sorbent 1, 7/28/2008

7:50-9:17 9:35-10:55 88% 67% 10:10-11:55

Martin Lake -- ACI Sorbent 1, 7/27/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 82% 78% 78% 22% 79%

78% 18% 22% Martin Lake -- ACI Sorbent 1, 7/26/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm) 8:45-10:07 88% 67% 12% 21% 33%

13:30-14:22 14:35-16:02

Page 36 of 75

### Boiler Outlet OHM 11.7021.4512.9420.65

Boiler Outlet (lb/TBtu) 8.19 15.01 9.06 14.46 Boiler Outlet CEMS 13.5022.1013.5022.10 Stack OHM 6.31 7.66 4.71 6.78 Stack (lb/TBtu) 4.42 5.36 3.30 4.75 Stack CEMS 3.60 4.80 3.60 5.80

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 12.7022.3818.2321.55 12.2921.72 Boiler Outlet (lb/TBtu) 9.14 16.11 9.53 15.52 8.85 15.63 Boiler Outlet CEMS 14.5020.2312.1521.81 10.9520.30 Stack OHM 5.95 7.52 4.41 5.23 5.72 6.67 Stack (lb/TBtu) 4.28 5.41 3.17 3.77 4.12 4.80 Stack CEMS 3.39 6.83 4.71 5.86 3.51 5.47

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 13.9022.7812.4523.03 18.5325.93 Boiler Outlet (lb/TBtu) 9.59 15.72 8.59 15.89 12.78 17.89 Boiler Outlet CEMS 12.5619.6814.9221.46 13.9522.48 Stack OHM 3.75 5.00 6.54 7.80 4.62 5.44 Stack (lb/TBtu) 2.59 3.45 4.51 5.38 3.19 3.76 Stack CEMS 2.59 5.72 3.61 6.87 3.07 7.00

Fuels Lignite Subbituminous 78% 67% Run 1 (ug/dscm)

13% 22% 33% 87%

Run 2 (ug/dscm)Run 3 (ug/dscm) 8:30-10:05 10:30-12:05 13:30-14:42

11% 21% 22%

Run 2 (ug/dscm)Run 3 (ug/dscm) 8:05-9:15 10:00-11:40 13:05-14:32

89% 79% 78% Martin Lake -- ACI Sorbent 1, 7/30/2008 Run 1 (ug/dscm) Martin Lake -- ACI Sorbent 1 Testing, 7/29/2008

11% 12% 89% 88%

Page 37 of 75

### Time

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.7828.0917.4225.99 Boiler Outlet (lb/TBtu) 12.9619.3812.02 17.93 Boiler Outlet CEMS 13.5022.1013.5022.10 Stack OHM 6.05 8.25 6.18 7.81 Stack (lb/TBtu) 4.17 5.69 4.26 5.39 Stack CEMS 4.60 6.60 4.60 6.30

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 15.4622.7213.0126.22 16.9525.61 Boiler Outlet (lb/TBtu) 10.51 15.45 8.85 17.83 11.53 17.41 Boiler Outlet CEMS 14.5020.2312.1524.81 10.9520.30 Stack OHM 5.17 6.47 4.55 5.14 6.17 8.86 Stack (lb/TBtu) 3.52 4.40 3.10 3.50 4.19 6.03 Stack CEMS 3.39 6.43 4.71 5.86 3.51 5.47

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 14.1518.4513.78 17.09 15.83 18.6813.3317.72 Boiler Outlet (lb/TBtu) 9.62 12.55 9.37 11.62 10.76 12.70 9.06 12.05 Boiler Outlet CEMS NA NA NA NA NA NA NA NA Stack OHM 5.11 6.80 5.41 6.99 5.46 6.94 5.55 7.17 Stack (lb/TBtu) 3.48 4.63 3.68 4.75 3.71 4.72 3.77 4.88 Stack CEMS 4.80 6.84 5.25 6.79 5.58 7.43 5.61 7.66 Run 4 (ug/dscm) 8:00-9:05 9:20-10:20 10:25-11:55 12:35-14:25 33% 33% 33%

Martin Lake -- ACI Sorbent 2, 8/06/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 67% 67% 67% 8:05-09:37 9:55-11:25 12:35-13:55 Martin Lake -- ACI Sorbent 1, 8/04/2008

79% 76%

Run 2 (ug/dscm)Run 3 (ug/dscm) 21% 24%

Run 1 (ug/dscm) Run 1 (ug/dscm)Run 2 (ug/dscm) Martin Lake -- ACI Sorbent 1, 8/03/2008

15:00-16:20 16:25-17:55

Page 38 of 75

### Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 14.3918.6214.7418.27 18.4321.7513.8618.4215.41 19.53 Boiler Outlet (lb/TBtu) 10.0713.0410.32 12.79 12.9015.22 9.70 12.9010.7913.67 Boiler Outlet CEMS NA NA NA NA NA NA NA NA NA NA Stack OHM 5.56 7.74 5.94 7.38 5.67 7.25 4.94 7.72 6.11 8.14 Stack (lb/TBtu) 3.89 5.42 4.16 5.17 3.97 5.07 3.46 5.40 4.28 5.69 Stack CEMS 4.80 6.84 5.25 8.07 5.58 7.08 5.61 6.00 5.61 6.00

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 19.6422.5420.9623.54 19.1320.8718.8321.8918.8822.31 19.3322.35 Boiler Outlet (lb/TBtu) 13.7515.7814.67 16.48 13.39 14.61 13.1815.3213.21 15.6213.5315.64 Boiler Outlet CEMS NA NA NA NA NA NA NA NA NA NA NA NA Stack OHM 7.15 10.14 7.06 9.04 5.00 6.03 5.25 6.55 7.99 10.84 8.51 12.29 Stack (lb/TBtu) 5.00 7.10 4.94 6.33 3.50 4.22 3.67 4.59 5.59 7.59 5.96 8.61 Stack CEMS 5.61 8.67 5.16 9.06 4.79 7.40 4.35 7.61 5.93 10.53 5.59 11.70

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 34% 34% 12% 33% 12% 33%

11% 30%

66%

Run 3 (ug/dscm)Run 4 (ug/dscm) 8:00-9:10 12%

Martin Lake -- ACI Sorbent 2, 8/09/2008 Run 1 (ug/dscm)Run 2 (ug/dscm) 88% 76% 66% 15:25-16:35

66% 88% Run 5 (ug/dscm)Run 6 (ug/dscm)

9:15-10:15 10:15-11:25 11:35-12:40 24% 34% 88%

9:50-10:55 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm) 11:15-12:25 12:35-13:45 8:20-9:30 14:30-15:20

9:05-10:10 10:20-11:29 12:20-13:07

Martin Lake -- ACI Sorbent 2, 8/08/2008

89% 70% 67% 67% 33% 13% 33% 11%

13:10-14:23 Martin Lake -- ACI Sorbent 2, 8/07/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm) 7:45-8:51 Run 5 (ug/dscm) 87% 67% 67% 89%

Page 39 of 75

### Boiler Outlet OHM 19.7223.2820.0223.59 19.1222.51 18.4622.10

Boiler Outlet (lb/TBtu) 13.8016.3014.02 16.52 13.38 15.7612.9215.47 Boiler Outlet CEMS NA NA NA NA NA NA NA NA Stack OHM 4.86 6.44 4.52 6.41 5.22 7.22 3.72 5.17 Stack (lb/TBtu) 3.40 4.51 3.17 4.49 3.65 5.06 2.60 3.62 Stack CEMS 4.25 6.04 4.48 6.04 4.27 6.52 4.14 6.32

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 20.0325.4819.9024.59 19.6023.92 Boiler Outlet (lb/TBtu) 14.0217.8413.93 17.21 13.72 16.74 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 5.02 6.20 5.42 6.64 4.45 6.14 Stack (lb/TBtu) 3.52 4.34 3.79 4.65 3.12 4.30 Stack CEMS 4.79 5.83 4.58 5.81 4.22 5.16

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 22.3227.5420.7429.44 Boiler Outlet (lb/TBtu) 15.6219.2814.5220.61 Boiler Outlet CEMS NA NA NA NA Stack OHM 5.68 8.16 5.96 7.94 Stack (lb/TBtu) 3.98 5.71 4.17 5.56 Stack CEMS 4.56 7.32 4.17 7.91

Fuels Lignite Subbituminous 22%

22% 22% 11%

87% 78% 13% 22% Martin Lake -- ACI Sorbent 2, 8/13/2008

15:00-16:20 18:25-19:35 Run 1 (ug/dscm)Run 2 (ug/dscm) 78% 89% 8:30-9:30 9:50-11:05 11:05-12:10

78% Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 12% 20% 29%

Martin Lake -- ACI Sorbent 2, 8/10/2008

88% 80% 71% 78%

Page 40 of 75

### Time

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.3723.8920.2825.3721.0026.7321.2126.1220.1927.3619.8325.91 Boiler Outlet (lb/TBtu) 12.8616.7214.19 17.76 14.7018.71 14.8518.2814.1319.1513.8818.14 Boiler Outlet CEMS NA NA NA NA NA NA NA NA 18.3523.3518.8322.79 Stack OHM 8.25 10.30 8.02 10.62 7.48 9.66 6.59 8.71 7.60 9.31 7.26 9.06 Stack (lb/TBtu) 5.77 7.21 5.61 7.43 5.23 6.76 4.61 6.10 5.32 6.52 5.08 6.34 Stack CEMS 9.49 10.08 8.99 11.65 6.35 8.79 6.38 8.09 4.95 10.30 5.05 10.57

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 21.4526.1421.9426.5621.3026.56 Boiler Outlet (lb/TBtu) 15.01 18.3015.3618.59 14.93 18.59 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 6.76 8.57 6.52 8.25 6.49 8.06 Stack (lb/TBtu) 4.73 6.00 4.57 5.78 4.55 5.64 Stack CEMS NA NA NA NA NA NA

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 17.3120.91 19.4621.96 18.3621.6719.7924.46 Boiler Outlet (lb/TBtu) 12.11 14.6413.62 15.37 12.85 15.1713.8617.12 Boiler Outlet CEMS NA NA NA NA NA NA NA NA Stack OHM 6.17 8.35 6.86 8.30 6.06 8.05 5.68 7.33 Stack (lb/TBtu) 4.32 5.84 4.80 5.81 4.24 5.63 3.98 5.13 21% 79% 79% 21%

Martin Lake -- ACI Sorbent 2, 8/20/2008 Run 1 (ug/dscm)Run 2 (ug/dscm) 22% 22% 18% 12%

Run 3 (ug/dscm)Run 4 (ug/dscm) 8:20-9:30 9:50-10:55 11:15-12:25 12:35-13:45 79% 78% 78% 21% 22% 22% 11:00-12:30 13:15-14:20 14:25-15:40 Martin Lake -- ACI Sorbent 2, 8/18/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 78% 78% 82% 88% 16:45-17:50 18:00-19:05 9:35-10:50 11:05-12:20 13:25-14:35 14:40-15:35 Run 6 (ug/dscm) Martin Lake -- ACI Sorbent 2, 8/14/2008 Run 4 (ug/dscm)Run 5 (ug/dscm) Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)

Page 41 of 75

### Stack CEMS NA NA NA NA NA NA NA NA

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 17.9221.2318.4221.35 18.1520.7318.3120.9817.8622.9618.2722.72 Boiler Outlet (lb/TBtu) 12.5414.8612.89 14.95 12.71 14.51 12.8214.6912.5016.0712.7915.90 Boiler Outlet CEMS NA NA NA NA NA NA NA NA 18.3523.3518.8322.79 Stack OHM 4.67 6.91 4.33 6.31 3.94 5.61 4.02 5.63 3.54 4.90 3.53 4.81 Stack (lb/TBtu) 3.27 4.84 3.03 4.42 2.76 3.93 2.82 3.94 2.48 3.43 2.47 3.36 Stack CEMS 9.49 10.08 8.99 11.65 6.35 8.79 6.38 8.09 1.06 3.69 5.05 2.34

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 14.1218.4016.0619.90 16.8620.33 Boiler Outlet (lb/TBtu) 9.89 12.8811.2413.93 11.8014.23 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 3.05 4.23 3.41 4.66 3.67 5.25 Stack (lb/TBtu) 2.14 2.96 2.39 3.26 2.57 3.67 Stack CEMS 2.73 3.66 2.99 4.38 3.10 4.50

Fuels Lignite Subbituminous

Time 78% 76%

34% 34% 31% 24% 18% 22%

Martin Lake -- ACI Sorbent 2, 8/25/2008 11:40-12:42

21% 21% 21%

7:55-9:00 9:20-10:22 10:40-11:42 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 66% 89% 88% 67% 66%

79% 79% 79% 8:05-9:15 10:20-11:22 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 15:45-16:30

69% 12% 33% 11%

Martin Lake -- ACI Sorbent 2, 8/23/2008 16:40-17:55 Run 4 (ug/dscm)Run 5 (ug/dscm) 8:05-9:05 9:30-10:30 11:55-12:55 13:15-14:15 82% 78%

Run 6 (ug/dscm) 22%

Martin Lake -- ACI Sorbent 2, 8/21/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)

Page 42 of 75

### Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT



### Boiler Outlet OHM 14.6818.1715.27 18.48 14.42 17.93 Boiler Outlet (lb/TBtu) 10.2812.7210.69 12.93 10.1012.55 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 3.88 5.18 3.78 4.94 3.88 5.38 Stack (lb/TBtu) 2.71 3.63 2.64 3.46 2.71 3.77 Stack CEMS 3.75 5.54 3.92 5.70 3.69 5.54

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 14.0918.9614.55 19.32 15.7120.90 Boiler Outlet (lb/TBtu) 9.87 13.2710.18 13.53 10.99 14.63 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 5.12 6.82 7.32 10.12 NA NA Stack (lb/TBtu) 3.58 4.78 5.12 7.09 NA NA Stack CEMS 3.69 6.77 3.92 5.70 3.69 5.54

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 12.9817.51 12.5617.31 12.23 17.29 Boiler Outlet (lb/TBtu) 9.09 12.26 8.79 12.11 8.56 12.11 Boiler Outlet CEMS NA NA NA NA NA NA Stack OHM 9.46 12.39 8.81 12.33 7.62 11.37 Stack (lb/TBtu) 6.62 8.68 6.17 8.63 5.33 7.96 Stack CEMS 7.16 10.30 7.47 11.11 7.57 10.08

Fuels Lignite Subbituminous 15% 23% 23%

89% 74% 67% 11% 26% 33% 8:05-9:10 11:20-12:22 13:00-14:02 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) Martin Lake -- Baseline Testing, 8/28/2008

22% 23% 23%

85% 77% 77% Martin Lake -- ACI Sorbent 2, 8/26/2008 Run 1 (ug/dscm)Run 2 (ug/dscm) 10:15-11:20 11:35-12:37 13:40-15:25 78% 77% 77%

Run 3 (ug/dscm)

Page 43 of 75

### Time

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.8423.4818.4823.99 18.8924.6016.7822.4713.9017.8914.1416.93 Boiler Outlet (lb/TBtu) 13.1916.4312.93 16.79 13.22 17.2211.7415.73 9.73 12.52 9.90 11.85 Boiler Outlet CEMS NA NA NA NA NA NA NA NA NA NA NA NA Stack OHM 11.0514.0710.25 13.33 9.00 11.55 8.32 10.31 5.86 7.22 5.17 6.06 Stack (lb/TBtu) 7.73 9.85 7.17 9.33 6.30 8.08 5.83 7.22 4.10 5.05 3.62 4.24 Stack CEMS 6.88 11.13 8.53 13.44 9.40 13.71 7.76 11.07 7.16 8.60 5.19 6.50

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 16.8920.8317.6720.8821.9525.8721.2825.7320.9425.5420.5825.30 Boiler Outlet (lb/TBtu) 11.8314.5812.37 14.61 15.36 18.11 14.8918.01 14.6617.8814.41 17.71 Boiler Outlet CEMS NA NA NA NA NA NA NA NA NA NA NA NA Stack OHM 5.57 7.98 5.97 7.74 6.93 8.61 7.50 8.96 6.38 8.12 6.06 7.77 Stack (lb/TBtu) 3.90 5.59 4.18 5.42 4.85 6.02 5.25 6.27 4.47 5.69 4.24 5.44 Stack CEMS 6.02 7.36 5.80 7.98 6.11 8.97 5.74 6.77 5.36 7.61 5.52 9.05

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Boiler Outlet OHM 21.6926.95 Boiler Outlet (lb/TBtu) 15.1918.87 Boiler Outlet CEMS NA NA Stack OHM 21.6926.95 Stack (lb/TBtu) 15.1918.87 23% 22% 22% 22%

24% 77% Run 6 (ug/dscm) 15:35-16:40 17:25-18:16

77% 14:35-15:30 Run 4 (ug/dscm)Run 5 (ug/dscm) 15:55-17:03

12% 12% 23% 23% Martin Lake -- ACI Sorbent 3, 8/31/2008 Run 2 (ug/dscm)Run 3 (ug/dscm)

77% 76%

8:30-9:50 8:05-9:10 9:15-10:12 11:05-12:09 12:55-13:56

Martin Lake -- Baseline Testing, 9/01/2008 Run 1 (ug/dscm) 88% 88% Run 1 (ug/dscm) 13% 78% Run 4 (ug/dscm)Run 5 (ug/dscm) 14:00-15:02 Run 1 (ug/dscm)Run 2 (ug/dscm)

22% 22% 8:45-9:55 10:05-11:02 12:55-13:49

78% 87% 78% 78% 78% Run 3 (ug/dscm) Run 6 (ug/dscm) Martin Lake -- Baseline Testing, 8/29/2008

Page 44 of 75

### Stack CEMS NA NA

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 17.8425.2615.7420.84 16.2821.3616.5222.43 Boiler Outlet (lb/TBtu) 12.4917.6811.02 14.58 11.39 14.9511.5615.70 Boiler Outlet CEMS NA NA NA NA NA NA NA NA Stack OHM 11.1416.46 8.61 11.03 8.10 10.7010.6513.98 Stack (lb/TBtu) 7.79 11.52 6.03 7.72 5.67 7.49 7.46 9.79 Stack CEMS 11.1716.8010.57 13.24 9.86 11.74 8.56 13.32

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 16.1720.8716.1021.79 18.0925.1218.4725.63 Boiler Outlet (lb/TBtu) 11.3214.61 11.27 15.25 12.66 17.5912.9317.94 Boiler Outlet CEMS 15.6524.0815.4424.22 15.7923.0715.4022.67 Stack OHM 9.79 12.34 8.91 11.76 9.69 12.53 9.09 12.51 Stack (lb/TBtu) 6.86 8.64 6.24 8.23 6.78 8.77 6.36 8.75 Stack CEMS 8.64 16.30 8.32 14.70 8.86 10.90 8.25 10.40

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 31%

Run 4 (ug/dscm) 11% 12% 21% 89%

Martin Lake -- ACI Sorbent 4, 9/07/2008 86% 78% 78%

22% 11% 14% 22% 14:00-15:02

Run 4 (ug/dscm) 8:00-9:27 9:35-11:10 12:20-13:22 14:00-15:02 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 89% 9:30-10:32

Martin Lake -- ACI Sorbent 4, 9/06/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 8:10-9:25 9:35-11:11 12:55-13:49 19%

88% 79% 69% Martin Lake -- Baseline Testing, 9/05/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm) 8:00-9:10 10:55-11:57 13:10-14:11 81%

Page 45 of 75

### Boiler Outlet OHM 16.1123.3217.2423.24 16.6024.7315.4023.42

Boiler Outlet (lb/TBtu) 11.2816.3212.0616.27 11.62 17.31 10.7816.40 Boiler Outlet CEMS 15.5623.21 15.9220.92 16.9222.4715.8222.79 Stack OHM 8.29 10.35 8.02 10.33 7.22 10.25 6.57 9.04 Stack (lb/TBtu) 5.80 7.25 5.62 7.23 5.05 7.17 4.60 6.33 Stack CEMS 7.14 13.31 7.43 8.51 7.93 12.47 6.79 11.06

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.6225.61 19.1625.24 18.2822.3218.5822.24 Boiler Outlet (lb/TBtu) 13.0417.9313.41 17.67 12.8015.6313.0015.57 Boiler Outlet CEMS 17.3526.6917.7627.23 17.6427.0616.4124.89 Stack OHM 6.94 9.11 6.24 8.40 5.49 7.48 5.58 7.50 Stack (lb/TBtu) 4.86 6.38 4.37 5.88 3.84 5.23 3.90 5.25 Stack CEMS 5.92 8.52 5.98 8.71 5.98 8.49 4.99 7.13

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.5921.3618.9521.9520.0323.5420.9724.28 Boiler Outlet (lb/TBtu) 13.01 14.9613.2615.37 14.02 16.4814.6817.00 Boiler Outlet CEMS 17.3821.6617.6322.03 20.6824.6920.0523.10 Stack OHM 9.73 14.33 9.98 15.22 11.22 15.56 9.05 14.17 Stack (lb/TBtu) 6.81 10.03 6.99 10.65 7.86 10.89 6.33 9.92 Stack CEMS 7.76 11.66 7.52 15.49 8.04 12.43 7.74 12.78

Fuels Lignite Subbituminous 80% 20% 22% 9% 22%

10% 10% 13% 90% 90% 87% Martin Lake -- Baseline Testing, 9/09/2008

9%

Run 4 (ug/dscm) 8:00-9:01 9:10-10:13 10:20-11:19 11:35-12:40 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 78% 10% 11%

Martin Lake -- ACI Sorbent 4, 9/08/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 17%

Run 4 (ug/dscm) 19%

91% 91% 78% 90% 89% 81% 83%

9:00-10:07 10:35-11:32 13:25-14:27 14:50-15:52

Page 46 of 75

### Time

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 18.1524.8418.2524.00 18.3623.4618.1723.63 Boiler Outlet (lb/TBtu) 12.7017.3912.77 16.80 12.85 16.4212.7216.54 Boiler Outlet CEMS 19.9129.8218.5026.64 18.5322.7418.0022.96 Stack OHM 10.3613.9010.27 13.95 7.71 10.46 7.21 9.76 Stack (lb/TBtu) 7.25 9.73 7.19 9.77 5.40 7.32 5.05 6.83 Stack CEMS 8.69 13.42 7.88 14.72 7.92 10.02 7.41 10.59

Fuels Lignite Subbituminous

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Boiler Outlet OHM 24.9829.8223.4728.4223.0426.3222.1527.5622.0427.5522.2527.02 Boiler Outlet (lb/TBtu) 17.4820.8816.43 19.89 16.13 18.4215.51 19.2915.4319.2815.5818.91 Boiler Outlet CEMS 20.4228.0923.6330.31 23.5430.8922.4328.8122.8629.1721.2130.34 Stack OHM 11.5716.2812.3616.78 11.95 17.4310.6715.0310.1015.4710.0714.85 Stack (lb/TBtu) 8.10 11.40 8.65 11.75 8.37 12.20 7.47 10.52 7.07 10.83 7.05 10.39 Stack CEMS 7.93 15.22 8.94 13.94 8.46 16.82 8.75 12.95 8.40 13.46 8.50 13.92

Fuels Lignite Subbituminous



## 5. Big Brown Unit 1--Boiler Outlet, ESP Outlet, and Stack

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### OHM Boiler Outlet 18.2723.4617.6421.77 19.1323.23 OHM Boiler Outlet (lb/Tbtu)NA 16.86 NA 15.65 NA 16.70 CMMS Boiler Outlet 14.1129.1214.8226.12 18.4828.03 81% 79% Run 6 (ug/dscm) 83% 17%

Run 4 (ug/dscm)

11% 11% 11% 89% 81% 7:55-8:52

21% 19% 19% 89% 89% 15:35-16:31 9:45-10:31 10:35-11:39 13:15-14:06 Run 4 (ug/dscm)

Run 2 (ug/dscm) Run 5 (ug/dscm)

Run 3 (ug/dscm) 14:55-16:01

14:15-15:21 90% 91% 90% 10% 9% 10%

Martin Lake -- ACI Sorbent 4, 9/11/2008 Run 1 (ug/dscm) Martin Lake -- ACI Sorbent 4, 9/10/2008 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 10:30-11:17 11:35-12:27 13:45-14:54

10:35-11:48 13:35-14:35 16:20-17:20 

## Big Brown 1 -- Baseline Testing, 11/7/2007

Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)

Page 47 of 75

### CMMS Boiler Outlet (lb/Tbtu)NA 20.93 NA 18.77 NA 20.15

OHM Stack 18.0025.6615.9023.09 18.4326.91 OHM Stack (lb/TBtu) NA 18.44 NA 16.60 NA 19.34 CMMS Stack 10.8924.80 9.99 22.16 9.57 22.09 CMMS Stack (lb/Tbtu) NA 17.82 NA 15.93 NA 15.88

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### OHM Boiler Outlet 22.9427.4423.1026.8024.7528.38 OHM Boiler Outlet (lb/Tbtu)NA 19.72 NA 19.26 NA 20.40 CMMS Boiler Outlet 23.2126.7823.2426.8823.2526.67 CMMS Boiler Outlet (lb/Tbtu)NA 19.25 NA 19.32 NA 19.17 OHM Stack 13.8922.9014.3822.28 14.1623.76 OHM Stack (lb/TBtu) NA 16.46 NA 16.01 NA 17.08 CMMS Stack 13.3222.2313.1822.18 13.2622.77 CMMS Stack (lb/Tbtu) NA 15.98 NA 15.94 NA 16.37

Time Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### OHM Boiler Outlet 16.1729.1914.5327.29 14.2127.91 OHM Boiler Outlet (lb/Tbtu)NA 20.98 NA 19.61 NA 20.06 CMMS Boiler Outlet 15.3728.1914.4027.29 14.0827.21 CMMS Boiler Outlet (lb/Tbtu)NA 20.26 NA 19.61 NA 19.56 OHM Stack 11.9426.1512.5622.91 11.8422.40 OHM Stack (lb/TBtu) NA 18.80 NA 16.47 NA 16.10 CMMS Stack 10.7725.6511.5420.82 10.9420.67 CMMS Stack (lb/Tbtu) NA 18.44 NA 14.96 NA 14.86

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 11/8/2007, Time: OHM Boiler Outlet 18.0020.9317.7920.98 16.9419.76 OHM Boiler Outlet (lb/Tbtu)NA 15.04 NA 15.08 NA 14.20 OHM Stack 12.0518.3711.2618.41 10.48 16.99 11:20-12:20

9:20-10:30 11:50-13:00 8:35-9:35

11:47-12:47 12:45-13:45



## Big Brown -- Norit Hg LH ACI Testing, 11/8/2007-11/12/2007
Run 1 (ug/dscm)Run 2 (ug/dscm)

15:35-16:45 Run 3 (ug/dscm)

Run 3 (ug/dscm) 10:21-11:21 

## Big Brown 1 -- Baseline Testing, 11/25/2007

Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)



## Big Brown 1 -- Baseline Testing, 12/4/2007

Run 1 (ug/dscm)Run 2 (ug/dscm) 12:56-13:56

Page 48 of 75

### OHM Stack (lb/TBtu) NA 13.20 NA 13.23 NA 12.21 11/9/2007, Time: OHM Boiler Outlet 18.4822.4320.6325.0623.0426.44 OHM Boiler Outlet (lb/Tbtu)NA 16.12 NA 18.01 NA 19.00 OHM Stack 12.7619.41 12.15 19.79 12.0720.85 OHM Stack (lb/TBtu) NA 13.95 NA 14.22 NA 14.99 11/10/2007, Time: OHM Boiler Outlet 22.7131.3024.3036.0625.4938.18 OHM Boiler Outlet (lb/Tbtu)NA 22.49 NA 25.92 NA 27.44 OHM Stack 12.8524.7714.2128.61 13.7330.76 OHM Stack (lb/TBtu) NA 17.80 NA 20.56 NA 22.11 11/11/2007, Time: OHM Boiler Outlet 19.1925.4220.8527.08 19.9325.85 OHM Boiler Outlet (lb/Tbtu)NA 18.27 NA 19.46 NA 18.58 OHM Stack 9.12 15.64 9.18 17.15 8.02 16.03 OHM Stack (lb/TBtu) NA 11.24 NA 12.33 NA 11.52 11/12/2007, Time: OHM Boiler Outlet 23.1627.0221.7624.9221.7732.05 OHM Boiler Outlet (lb/Tbtu)NA 19.42 NA 17.91 NA 23.04 OHM Stack 7.08 11.04 6.62 14.01 6.11 13.25 OHM Stack (lb/TBtu) NA 7.93 NA 10.07 NA 9.52

Time: Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### OHM Boiler Outlet 33.4736.1535.6037.55 32.2835.11 OHM Boiler Outlet (lb/Tbtu)NA 25.98 NA 26.99 NA 25.24 OHM Stack 10.7725.75 8.91 22.98 6.43 15.86 OHM Stack (lb/TBtu) NA 18.51 NA 16.52 NA 11.4

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 11/15/2007, Time: OHM Boiler Outlet 21.0726.1823.7228.6022.6826.89 OHM Boiler Outlet (lb/Tbtu)NA 18.82 NA 20.56 NA 19.33 OHM Stack 9.12 24.83 9.72 21.81 9.58 21.00 OHM Stack (lb/TBtu) NA 17.85 NA 15.68 NA 15.09 11/16/2007, Time: OHM Boiler Outlet 18.6024.0218.7522.92 15.6721.28 15:05-15:05



## Big Brown 1 -- Calgon ACI Testing, 11/29/2007

10:30-11:45 13:05-14:18 9:00-10:10

9:10-10:10 10:40-11:41 13:50-14:52 13:40-14:40 12:00-13:10 14:30-15:40 17:10-18:10



## Big Brown 1 -- Calgon Fluepac MC Plus ACI Testing, 11/15/2007-11/28/2007 10:40-11:41

Run 3 (ug/dscm) 9:36-10:36 12:02-13:02 16:02-17:02 Run 1 (ug/dscm)Run 2 (ug/dscm)

Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)

10:38-11:51 13:22-14:22 15:05-16:08

11:15-12:15 13:15-14:15 14:45-15:45

Page 49 of 75

### OHM Boiler Outlet (lb/Tbtu)NA 17.26 NA 16.47 NA 15.29

OHM Stack 4.97 16.68 5.16 12.38 5.16 11.16 OHM Stack (lb/TBtu) NA 11.99 NA 8.90 NA 8.02 11/17/2007, Time: OHM Boiler Outlet 18.6223.9918.0122.42 OHM Boiler Outlet (lb/Tbtu)NA 17.24 NA 16.11 OHM Stack 8.85 16.42 7.41 15.24 OHM Stack (lb/TBtu) NA 11.80 NA 10.95 11/23/2007, Time: OHM Boiler Outlet 23.2531.2326.21 31.5429.6632.40 OHM Boiler Outlet (lb/Tbtu)NA 22.45 NA 22.67 NA 23.29 OHM Stack 4.34 10.76 5.90 14.99 5.68 13.86 OHM Stack (lb/TBtu) NA 7.73 NA 10.77 NA 9.96 11/24/2007, Time: OHM Boiler Outlet 21.0523.17 OHM Boiler Outlet (lb/Tbtu)NA 16.65 OHM Stack 3.70 7.95 OHM Stack (lb/TBtu) NA 5.71 11/27/2007, Time: OHM Boiler Outlet 35.2638.7831.1537.38 32.81 36.27 OHM Boiler Outlet (lb/Tbtu)NA 27.87 NA 26.87 NA 26.07 OHM Stack 7.20 14.44 5.52 12.89 5.37 14.21 OHM Stack (lb/TBtu) NA 10.38 NA 89.26 NA 10.21 11/28/2007, Time: OHM Boiler Outlet 33.5037.6334.3536.7433.6536.30 OHM Boiler Outlet (lb/Tbtu)NA 27.05 NA 26.41 NA 26.09 OHM Stack 3.98 10.68 3.69 12.65 2.96 10.05 OHM Stack (lb/TBtu) NA 7.68 NA 9.09 NA 7.22

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### 11/7/2007, Time: APK ESP Outlet NA 21.30 NA 20.40 APK Stack NA 23.00 NA 23.70 11/8/2007, Time: APK ESP Outlet NA 21.90 NA 17.90 APK Stack NA 17.90 NA 18.60 11/9/2007, Time: APK ESP Outlet NA 23.80 NA 23.00 APK Stack NA 23.00 NA 18.30 11/10/2007, Time: 

## Big Brown 1 -- Testing at ESP Outlet and Stack, 11/7/2007 - 11/28/2007 11:15-12:18 12:55-13:55 14:30-15:33 10:03-11:06

11:28-12:28

Run 2 (ug/dscm)Run 3 (ug/dscm) 11:28-12:28

10:00-11:00 11:36-12:36 12:40-13:40

9:53-10:53 11:30-12:30 13:36-14:36

15:35-16:45

11:20-12:20 13:40-14:40 13:35-14:35

11:50-13:00

14:30-15:40 17:10-18:10

16:20-17:20

Page 50 of 75

### APK ESP Outlet NA 34.70 NA 30.00

APK Stack NA 27.40 NA 28.90 11/11/2007, Time: APK ESP Outlet NA 18.00 NA 19.50 APK Stack NA 18.50 NA 16.80 11/12/2007, Time: APK ESP Outlet NA 15.50 NA 14.50 APK Stack NA 13.10 NA 12.50 11/15/2007, Time: APK ESP Outlet NA 20.70 NA 20.70 APK Stack NA 20.70 NA NA 11/16/2007, Time: APK ESP Outlet NA 15.60 NA 13.80 APK Stack NA 11.30 NA 10.20 11/23/2007, Time: APK ESP Outlet NA 17.20 NA 19.10 APK Stack NA 195.80NA NA 11/27/2007, Time: APK ESP Outlet NA 16.70 NA 10.90 APK Stack NA 10.90 NA 12.80 11/28/2007, Time: APK ESP Outlet NA 21.40 NA 16.70 APK Stack NA 11.20 NA 9.50

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### 11/30/2007, Time: OHM Boiler Outlet 17.3534.6821.4632.32 OHM Stack 6.46 17.41 6.01 16.15 12/2/2007, Time: OHM Boiler Outlet 29.1531.5226.6928.37 OHM Stack 5.09 14.43 5.18 13.77 12/3/2007, Time: OHM Boiler Outlet 11.6915.9520.4126.87 OHM Stack 3.41 8.58 5.01 13.38 

## Big Brown 1 --Long-term ACI Testing w/Calgon, 11/7/2007-12/3/2007 13:22-14:22 15:05-16:08

13:15-14:15 14:45-15:45 10:40-11:41 13:50-14:52

13:05-14:18 15:05-15:05

12:55-13:55 14:30-15:33

11:30-12:30 13:36-14:36 11:36-12:36 12:40-13:40

Run 1 (ug/dscm)Run 2 (ug/dscm)

10:28-11:28 13:09-14:09

10:05-11:05 11:18-12:18

ug/dscm 

## 11/30/2007-12/3/2007 Big Brown 1 -- Long-term ACI Testing w/Calgon CMMS Evaluation 10:55-11:55 14:27-15:27

Page 51 of 75

### Sample Location Hg0 

### HgT 

### 11/30/2007 CMMS Boiler Outlet 18.1928.27 CMMS Stack 6.73 13.23

12/1/2007 CMMS Boiler Outlet 18.2323.80 CMMS Stack 4.95 12.13

12/2/2007 CMMS Boiler Outlet 22.8429.77 CMMS Stack 4.04 13.09

12/3/2007 CMMS Boiler Outlet 12.6416.22 CMMS Stack 4.96 12.01



## 6. Monticello Unit 2 ACI Study

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 9/29/2007, Time: Boiler Outlet 24.6936.7524.0831.86 25.0836.18 Boiler Outlet (lb/Tbtu) NA 26.41 NA 22.9 NA 26 Stack 6.3 16.76 7.5 18.16 7.45 24.69 Stack (lb/Tbtu) NA 12.05 NA 13.05 NA 17.75

9/30/2007, Time: Boiler Outlet 21.91 30.6 20.7128.13 20.8126.8620.7426.59 Boiler Outlet (lb/Tbtu) NA 21.99 NA 20.22 NA 19.31 NA 19.11 Stack 5.48 12.52 5.66 14.5 4.7 12.24 4.15 11.13 Stack (lb/Tbtu) NA 9 NA 10.42 NA 8.8 NA 8

10/16/2007, Time: Boiler Outlet 23.8 27.4 24.9929.0523.0627.82 Boiler Outlet (lb/Tbtu) NA 19.69 NA 20.88 NA 20 Stack 2.72 9.88 2.62 9.08 3.45 9.11 Stack (lb/Tbtu) NA 7.1 NA 6.53 NA 6.55

10/26/2007, Time: Boiler Outlet 35.3745.92 39.3 57.4938.71 55.46 Boiler Outlet (lb/Tbtu) NA 33 NA 41.32 NA 39.86 Stack 6.94 18.59 6.44 17.77 6.18 16.66 Stack (lb/Tbtu) NA 13.36 NA 12.77 NA 11.97 13:20-14:27 9:30-10:33 11:55-12:59 Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm)

11:20-12:50

8:50-10:30 16:15-17:45

14:10-15:30

15:07-16:37 17:36-18:56 NA

14:00-14:57 15:10-16:11 16:20-17:14

12:10-14:05

NA OHM Baseline, 50/50 Blended Coal

NA

Page 52 of 75

### Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 10/1/2007, Time: Boiler Outlet 8.45 10.53 Boiler Outlet (lb/Tbtu) NA 7.57 Stack 2.21 5.91 Stack (lb/Tbtu) NA 4.25

10/2/2007, Time: Boiler Outlet 6.79 8.97 6.85 8.15 7.98 10.01 Boiler Outlet (lb/Tbtu) NA 6.45 NA 5.86 NA 7.2 Stack 1.57 4.6 1.82 4.71 1.6 4.48 Stack (lb/Tbtu) NA 3.31 NA 3.39 NA 3.22

10/15/2007, Time: Boiler Outlet 12.7214,3712.27 13.83 Boiler Outlet (lb/Tbtu) NA 10.33 NA 9.95 Stack 1.76 7.81 1.53 8.01 Stack (lb/Tbtu) NA 5.62 NA 5.76

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 9/29/2007, Time: Boiler Outlet 35.1950.0522.3831.5620.01 31.83 Boiler Outlet (lb/Tbtu) NA 35.97 NA 22.68 NA 22.88 Stack 6.27 16.88 7.51 18.2 7.44 24.67 Stack (lb/Tbtu) NA 12.13 NA 13.08 NA 17.73

9/30/2007, Time: Boiler Outlet 25.5 35.5 24.5 32.5 24.5 31.56 25.4 35.53 Boiler Outlet (lb/Tbtu) NA 25.52 NA 23.36 NA 22.68 NA 25.54 Stack 4.42 9.43 4.44 10.74 4.85 10.73 4.57 10.08 Stack (lb/Tbtu) NA 6.78 NA 7.72 NA 7.71 NA 7.24

10/16/2007, Time: Boiler Outlet 25.1630.6824.4930.9822.2426.64 Boiler Outlet (lb/Tbtu) NA 22.05 NA 22.27 NA 19.15 Stack 2.7 9.35 2.57 9.61 2.75 8.94 Stack (lb/Tbtu) NA 6.72 NA 6.91 NA 6.43

10/26/2007 Time: Boiler Outlet 35.3 46.2 38.9856.91 38.2855.14 Boiler Outlet (lb/Tbtu) NA 33.21 NA 40.9 NA 39.63 Stack 7.2 17.94 6.58 17.37 6.17 16.72 17:36-18:56 11:20-12:50 14:10-15:30 16:15-17:45 NA

8:50-10:30 12:10-14:05 15:07-16:37 15:00-17:00 Run 2 (ug/dscm)

7:00-9:00 11:00-13:00 15:00-16:30

CMM Baseline, 50/50 Blended Coal Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)Run 4 (ug/dscm) NA 9:15-10:10 17:00-17:42 NA OHM Baseline, 100% PRB Coal Run 3 (ug/dscm)

NA Run 1 (ug/dscm)

16:20-17:14

9:30-10:33 11:55-12:59 14:00-14:57 15:10-16:11

13:20-14:27 NA

NA

Page 53 of 75

### Stack (lb/Tbtu) NA 12.89 NA 12.48 NA 12.02

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 10/1/2007, Time: Boiler Outlet 8.47 12.83 Boiler Outlet (lb/Tbtu) NA 9.23 Stack 4.87 5.89 Stack (lb/Tbtu) NA 4.24

10/2/2007, Time: Boiler Outlet 7 11.18 7.16 9.29 10.01 12.89 Boiler Outlet (lb/Tbtu) NA 8.04 NA 6.68 NA 9.27 Stack 1.69 5.02 3.35 6.43 1.14 2.77 Stack (lb/Tbtu) NA 3.61 NA 4.62 NA 1.99

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 10/3/2007, Time: Boiler Outlet 9.63 11.6712.17 13.8 8.46 12.48 9.78 11.2910.8711.8412.5913.66 Boiler Outlet (lb/Tbtu) NA 8.39 NA 9.92 NA 8.97 NA 8.12 NA 8.51 NA 9.82 Stack 1.13 3.15 1.16 3.53 0.78 2.3 0.75 2.12 0.74 1.57 0.79 1.95 Stack (lb/Tbtu) NA 2.27 NA 2.54 NA 1.65 NA 1.52 NA 1.13 NA 1.4

10/4/2007, Time: Boiler Outlet 9.63 10.7 9.87 10.97 11.67 13.11 10.8712.81 8.39 9.58 7.86 8.68 Boiler Outlet (lb/Tbtu) NA 7.69 NA 7.89 NA 9.43 NA 9.21 NA 6.89 NA 6.24 Stack 1.21 2.75 1.18 2.55 1.41 2.82 1.38 2.9 0.79 1.92 0.69 1.7 Stack (lb/Tbtu) NA 1.98 NA 1.83 NA 2.03 NA 2.09 NA 1.38 NA 1.22

10/5/2007, Time: Boiler Outlet 9.99 11.0410.39 11.42 11.87 13.3310.81 12.74 Boiler Outlet (lb/Tbtu) NA 7.94 NA 8.21 NA 9.59 NA 9.16 Stack 0.45 0.9 0.52 0.98 0.48 0.91 0.45 0.82 Stack (lb/Tbtu) NA 0.65 NA 0.7 NA 0.65 NA 0.59

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 10/7/2007, Time: Boiler Outlet 5.53 6.27 6.77 7.51 6.58 7.2 6.43 7.02 7:00-9:00 11:00-13:00 NA NA

OHM with Calgon ACI Injection, 100% PRB Coal Run 6 (ug/dscm)

19:10-20:00 7:05-8:24 8:35-9:50 14:05-15:24

Run 2 (ug/dscm)Run 3 (ug/dscm) Run 1 (ug/dscm) Run 4 (ug/dscm) 15:00-17:00 CMM Baseline, 100% PRB Coal Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm)

15:00-16:30

15:30-16:08 NA 15:30-16:33

8:00-9:04

Run 5 (ug/dscm)Run 6 (ug/dscm)

OHM with Norit ACI Injection, 100% PRB Coal 9:30-10:30 12:07-13:06

Run 1 (ug/dscm) 7:30-8:47 9:06-11:15 14:05-15:24 18:18-19:19

Run 2 (ug/dscm)Run 3 (ug/dscm) 16:00-17:54 13:20-14:22 Run 5 (ug/dscm)

NA NA 15:30-16:33 NA

Run 4 (ug/dscm) 20:15-20:53

16:17-17:25 18:05-19:12 19:20-20:16 Run 7 (ug/dscm)

NA

Page 54 of 75

### Boiler Outlet (lb/Tbtu) NA 4.51 NA 5.4 NA 5.18 NA 5.05

Stack 0.29 0.76 0.34 0.78 0.42 0.72 0.31 0.67 Stack (lb/Tbtu) NA 0.55 NA 0.56 NA 0.52 NA 0.48

10/8/2007, Time: Boiler Outlet 11.7713.01 10.22 11.54 11.47 12.84 8.6 10.01 7.75 8.59 7.71 8.46 8.31 9.69 Boiler Outlet (lb/Tbtu) NA 9.36 NA 8.3 NA 9.23 NA 7.20 NA 6.18 NA 6.08 NA 6.97 Stack 1.04 3.07 0.94 2.83 0.98 2.99 0.85 2.92 0.67 2.35 0.67 2.09 0.35 1.07 Stack (lb/Tbtu) NA 2.21 NA 2.04 NA 2.15 NA 2.10 NA 1.69 NA 1.50 NA 0.77

10/9/2007, Time: Boiler Outlet 14.8516.3816.27 17.71 15.52 16.9915.61 17.2 Boiler Outlet (lb/Tbtu) NA 11.78 NA 12.74 NA 12.22 NA 12.37 Stack 1.08 3.21 1.39 4.18 0.76 2.34 1.20 4.02 Stack (lb/Tbtu) NA 2.31 NA 3.01 NA 1.68 NA 2.89

10/11/2007, Time: Boiler Outlet 16.3817.8914.25 14.98 Boiler Outlet (lb/Tbtu) NA 12.86 NA 10.77 Stack 0.5 1.63 0.4 1.49 Stack (lb/Tbtu) NA 1.17 NA 1.07

10/13/2007, Time: Boiler Outlet 10.7311.4512.03 12.9 12.08 12.94 12.1 13.01 12.3913.49 Boiler Outlet (lb/Tbtu) NA 8.23 NA 9.28 NA 9.31 NA 9.36 NA 9.70 Stack 0.80 1.61 0.93 1.89 0.75 1.79 0.72 1.73 0.59 1.44 Stack (lb/Tbtu) NA 1.16 NA 1.36 NA 1.29 NA 1.24 NA 1.04

Sample Location Hg0 

### HgT 

### Hg0 

### HgT 

### Hg0 

### HgT 

### 10/17/2007 Time: Boiler Outlet 24.3733.6721.9827.83 23.3 28.17 Boiler Outlet (lb/Tbtu) NA 24.4 NA 20.00 NA 20.25 Stack 2.59 4.22 1.08 2.72 1.25 3.28 Stack (lb/Tbtu) NA 3.03 NA 1.95 NA 2.36

10/27/2007 Time: Boiler Outlet 17.4532.67 18.2 32.8620.6537.96 Boiler Outlet (lb/Tbtu) NA 23.48 NA 23.62 NA 27.28 Stack 1.62 3.89 1.49 2.81 1.88 3.49 Stack (lb/Tbtu) NA 2.8 NA 2.02 NA 2.51

10/29/2007 Time: Boiler Outlet 29.77 45.8 Boiler Outlet (lb/Tbtu) NA 32.92 Stack 2.01 4.09 Stack (lb/Tbtu) NA 2.94 7:30-8:34 8:45-9:57 10:58-12:06 12:07-13:25 7:30-8:34 8:45-9:57 10:58-12:06

NA NA

NA 14:55-16:03 16:10-17:08

NA

OHM with Norit ACI, Long Term Testing, 50/50 Coal NA NA NA

9:55-10:55 11:45-12:45 13:00-14:00 14:45-15:45

13:25-14:20 10:20-11:27 12:00-13:20 13:25-14:32 14:30-15:57 16:30-17:57

8:45-9:45

Run 1 (ug/dscm)Run 2 (ug/dscm)Run 3 (ug/dscm) 17:55-18:48

NA 12:07-13:25

NA NA

9:00-10:10 NA NA 9:20-10:55 11:40-12:35

Page 55 of 75

### Hg0 

### HgT 

### Hg0 

### HgT



### Sample Date 10/17/2007 23.3840.75 1.27 3.03 10/18/2007 23.2637.25 0.57 1.74 10/19/2007 20.5927.16 0.88 1.88 10/20/2007 23.3933.26 0.85 1.98 10/21/2007 29.0738.44 1.27 2.67 10/22/2007 24.4731.14 0.57 1.04 10/27/2007 17.6634.28 1.89 3.18 10/28/2007 13.3418.59 1.16 2.52 10/29/2007 29.6144.64 2.01 4.27

Notes:
1

### Values represent average CMM results collected over the sample date. 2 Results from 10/23/2007 through 10/26/2007 are not reported because carbon ran out or ACI system became instable.



## 7. Big Brown Unit 2 ACI Options

Sample Location Part.Oxid.Elem.Total

1/18/2006 B Side ESP Inlet 2.85 8.77 15.1926.82 FF 2-4 Inlet 0.77 11.7320.1628.87 FF 2-4 Outlet 0.21 11.2 14.19 19.96

1/19/2006 B Side ESP Inlet 0.08 11.7316.0528.55 FF 2-4 Inlet 0.08 14.2418.9333.25 FF 2-4 Outlet 0.04 13.9610.2720.05

1/20/2006 B Side ESP Inlet 0.04 11.2 14.2625.67 FF 2-4 Inlet 0.06 9.72 21.3535.34 FF 2-4 Outlet 0.00 20.26 9.75 30.01

Variable ACI Rate CMM with Norit ACI, Long Term Testing, 50/50 Coal

Boiler Outlet Stack

(ug/dscm) (ug/dscm)

Mercury ug/dNm3

### (3% O2

### ) Baseline Testing OHM

NORIT DARCO Hg OHM Mercury ug/dNm3

### (3% O2

### )

Page 56 of 75

### Part.Oxid.Elem.Total 1/23/2006 FF 2-4 Inlet 0.05 14.51 18.5333.09 FF 2-4 Outlet1 

### 0.12 4.72 3.62 8.46

1/24/2006 FF 2-4 Inlet 0.03 13.9618.8232.81 FF 2-4 Outlet1 

### 1.45 6.72 0.51 8.68

2/2/2006 FF 2-4 Inlet 0.05 9.2 22.6 31.86 FF 2-4 Outlet1 

### 2.18 2.04 0.47 4.69

Variable ACI Rate Part.Oxid.Elem.Total

2/4/2006 FF 2-4 Inlet 0.08 8.05 19.7527.88 FF 2-4 Outlet1 

### 0.57 1.4 1.93 3.9

2/6/2006 FF 2-4 Inlet 0.08 11.2617.4728.81 FF 2-4 Outlet1 

### 0.48 5.1 4.48 10.06

2/8/2006 FF 2-4 Inlet 0.11 15.0319.1834.32 FF 2-4 Outlet1 

### 2.25 11.96 0.31 14.52

Constant ACI Rate Part.Oxid.Elem.Total

2/27/2006 FF 2-4 Inlet 0.09 12.71 14.7427.54 FF 2-4 Outlet 2.64 4.52 0.41 7.57

2/28/2006 FF 2-4 Inlet 0.10 15.5416.7732.41 FF 2-4 Outlet 0.49 0.9 0.59 1.98

3/1/2006 FF 2-4 Inlet 0.06 10.96 19.1 30.13 FF 2-4 Outlet 1.39 16.83 0.67 18.89

3/16/2006 1

### Possibly biased high results for the outlet due to AC caught on OH method sample filter

1

### Possibly biased high results for the outlet due to AC caught on OH method sample filter NORIT DARCO Hg + Additive OHM Mercury ug/dNm3

### (3% O2

### )

NORIT DARCO Hg OHM Mercury ug/dNm3

### (3% O2

### )

Page 57 of 75

### FF 2-4 Inlet 0.08 6.95 21.9 28.92

FF 2-4 Outlet 5.56 1.15 2.15 8.86

3/17/2006 FF 2-4 Inlet 0.23 6.53 16.5623.32 FF 2-4 Outlet 3.47 0.46 0.24 4.18

3/20/2006 FF 2-4 Inlet 0.13 3.6 18.7422.47 FF 2-4 Outlet 3.07 0.28 0.05 3.4

3/20/2006 FF 2-4 Inlet 0.08 5.12 16.19 21.4 FF 2-4 Outlet 5.18 0.45 0.13 5.76

3/21/2006 FF 2-4 Inlet 0.1 3.57 12.8616.53 FF 2-4 Outlet 2.57 0.65 0.35 3.57

3/22/2006 FF 2-4 Inlet 0.14 5.23 12.42 17.79 FF 2-4 Outlet 3.09 1.04 0.21 4.34

FF 2-4 Inlet FF 2-4 Outlet

NORIT DARCO Hg CMMFF 2-4 Outlet ug/dNm3

### , 3% O2

### ug/dNm3

### , 3% O2

### lb/TBtu Emissions Not Available 12.5 20.4

25.6 28.5 19.5

16.6 Not Available 27.5 25.5 33.1 17.6

17.3 5.53 12

10.2 10.8 10.6 3.39 8.64 4.05 1.78 1.09 14.1 6.61 32.6 20.4

ug/dNm3

### , 3% O2

### ug/dNm3

### , 3% O2 

### Based on 10-minute average data averaged over test duration

Enhanced NORIT DARCO Hg CMM FF 2-4 Inlet FF 2-4 Outlet FF 2-4 Outlet

22.5 28.9 lb/TBtu Emissions

Not Available 10.7 6.59 8.37 5.13 8.28 5.08 3.35 2.06

NORIT DARCO Hg W/ Additive CMM Based on 10-minute average data averaged over test duration Not Available

Page 58 of 75

### Complete data set includes data collected during plant outage Enhanced NORIT DARCO Hg CMM - Monthlong Study

Avg. FF 2-4 Hg Outlet, ug/dNm3 

### Avg. FF 2-4 Outlet Hg, lb/Tbtu 9.2 5.2 Complete Data Set1

### Active ACI Only 19 18

5.7 3.2 Avg. FF 2-4 Hg Inlet, ug/dNm3 

### FF 2-4 Inlet FF 2-4 Outlet FF 2-4 Outlet ug/dNm3

### , 3% O2

### ug/dNm3

### , 3% O2

### lb/TBtu Emissions Not Available 17.8 10.9 23.3 8.1 4.97

Based on 10-minute average data averaged over test duration 21.2 Not Available 6.17 30.7 3.9 2.39

Page 59 of 75

# TABLE 2-24 EMISSIONS TESTING, FUEL DATA ICR Part 2, Question 12

Notes: Coal moisture assumed to be 30% (if not otherwise specified), for calculating coal feed rate on a dry basis. PRB = Subbituminous Powder River Basin coal NR = Not reported ND = Not detected



# 1. Oak Grove Unit 1

Fuel: 100% Lignite

Estimated Heat Value Run & Test Unit Load Coal flow ratecoal moistureCoal flow rate Ash Btu/lb Sulfur Sampling Train Date MW TPH (as rec'd) (dry %) (lb/hr, dry) (dry %) (dry) (dry %)

1 - Acids 12/19/2009 NR NR 30% NC - - NR NR 1-NOx, CO, SO212/19/2009 800 570.3 30% 798,420 - - 9,881 NR 1 - Hg 12/19/2009 800 597.3 30% 836,220 - - 9,338 NR 1 - THC, CH412/20/2009 800 553.1 30% 774,340 - - 10,102 NR 1 - PM, Metals12/20/2009 NR NR 30% NC - - NR NR

Run 1 Avg 800 573.6 30% 802,993 - - 9,774 NR

2 - Acids 12/19/2009 NR NR 30% NC - - NR NR 2-NOx, CO, SO212/19/2009 800 570.7 30% 798,980 - - 9,836 NR 2 - Hg 12/20/2009 800 588.8 30% 824,320 - - 9,420 NR 2 - THC, CH412/20/2009 800 553.1 30% 774,340 - - 10,213 NR 2 - PM, Metals12/20/2009 NR NR 30% NC - - NR NR

Run 2 Avg 800 570.9 30% 799,213 - - 9,823 NR

3 - Acids 12/19/2009 NR NR 30% NC - - NR NR 3-NOx, CO, SO212/19/2009 800 574.2 30% 803,880 - - 9,776 NR 3 - Hg 12/20/2009 800 575.5 30% 805,700 - - 9,635 NR 3 - THC, CH412/20/2009 800 552.7 30% 773,780 - - 10,232 NR 3 - PM, Metals12/20/2009 NR NR 30% NC - - NR NR

Run 3 Avg 800 567.5 30% 794,453 - - 9,881 NR

Pollutant Concentration Units

12/20/2009 Antimony <3.00 ppm dry Arsenic 2.62 ppm dry Barium 327 ppm dry Beryllium 1.00 ppm dry Cadmium <1.00 ppm dry Page 60 of 75

## Chromium 13.6 ppm dry Copper 35.8 ppm dry Manganese 115 ppm dry Nickel 6.23 ppm dry Selenium 5.94 ppm dry

Pollutant Concentration Units

12/19/2009 Antimony <3.00 ppm dry Arsenic 2.24 ppm dry Barium 209 ppm dry Beryllium <1.00 ppm dry Cadmium <1.00 ppm dry Chromium 12.4 ppm dry Copper 41.1 ppm dry Manganese 93.8 ppm dry Nickel 6.83 ppm dry Selenium 5.36 ppm dry



# 2. Sandow Station - Stack 5A

Fuel: 100% Lignite

Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Fuel ID or name Estimated Heat Value used during Test Unit Load Coal flow ratecoal moistureCoal flow rate Ash Btu/lb Sulfur this sample run Date MW TPH (as rec'd) (dry %) (lb/hr, dry) (dry %) (dry) (dry %)

5A run 1 lignite10/28/2009 313.34 234.94 30% 328,916 - - 8,722 1.60 5A run 1 lignite10/28/2009 312.23 235.94 30% 330,316 - - 7,912 1.53 Run 1 Avg 312.8 235.4 30% 329,616 - - 8,317 1.57

5A run 3 lignite10/30/2009 320.17 242.86 30% 340,004 - - 8,316 1.77 5A run 3 lignite10/30/2009 317.93 247.48 30% 346,472 - - 8,316 1.77 Run 3 Avg 319.1 245.2 30% 343,238 - - 8,316 1.77

5A run 4 lignite11/5/2009 297.69 214.15 30% 299,810 - - 8,764 1.9 5A run 4 lignite11/5/2009 301.07 222.77 30% 311,878 - - 8,764 1.9 Run 4 Avg 299.4 218.5 30% 305,844 - - 8,764 1.90

SGS Labs - coal testing, all units are dry basis. Ash Heat Value Sulfur Beryllium Lead Chlorine FluorineArsenicMercury Date Time Sample ID (%) (Btu/lb) (%) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g)(ug/g)
Page 61 of 75

## 10/28/2009 12:07 2 Hr Test - Run 1 33.46 8,439 1.60 1.2 14 73 140 5 0.31

10/28/2009 17:50 1 Hr Test - Run 1 32.85 8,485 1.44 1.3 15 47 140 5 0.27 10/30/2009 9:30 1 Hr Test - Run 3 34.55 8,251 1.65 1.6 17 42 250 6 0.25 10/30/2009 17:20 2 Hr Test - Run 3 33.06 8,485 2.07 1.6 17 54 180 21 0.32 11/5/2009 9:00 1 Hr Test - Run 4 33.99 8,389 1.78 1.5 43 34 160 8 0.33 11/5/2009 14:00 2 Hr Test - Run 4 36.14 8,016 1.86 1.5 51 36 170 11 0.36

Antimony Barium Cadmium Cobalt Chromium CopperManganeseNickelVanadiumSelenium Date Time Sample ID (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g)(ug/g)(ug/g) 10/28/2009 12:07 2 Hr Test - Run 1 <2 189 <0.7 7 28 49 98 15 78 11 10/30/2009 17:20 2 Hr Test - Run 3 2 116 <0.7 7 31 53 72 19 91 13 11/5/2009 14:00 2 Hr Test - Run 4 2 214 <0.8 7 34 53 83 18 96 10



# 2. Sandow Station - Stack 5B

Fuel: 100% Lignite

Note: Sandow Station has a single generator (Unit 5) which is powered by Boilers 5A and 5B.

Fuel ID or name Estimated Heat Value used during Test Unit Load Coal flow ratecoal moistureCoal flow rate Ash Btu/lb Sulfur this sample run Date MW TPH (as rec'd) (dry %) (lb/hr, dry) (dry %) (dry) (dry %)

5B run 1 lignite10/31/2009 303.86 247.58 30% 346,612 - - 8,232 1.56 5B run 1 lignite10/31/2009 304.55 255.11 30% 357,154 - - 8,232 1.56 Run 1 Avg 304.2 251.3 30% 351,883 - - 8,232 1.56

5B run 2 lignite11/1/2009 302.38 264.57 30% 370,398 - - 7,905 1.81 5B run 2 lignite11/1/2009 314.07 254.46 30% 356,244 - - 7,905 1.81 Run 2 Avg 308.2 259.5 30% 363,321 - - 7,905 1.81

5B run 3 lignite11/2/2009 315.49 258.45 30% 361,830 - - 7,830 1.83 5B run 3 lignite11/2/2009 298.08 243.70 30% 341,180 - - 7,830 1.83 Run 3 Avg 306.8 251.1 30% 351,505 - - 7,830 1.83

5B run 4 lignite11/2/2009 NR NR NR NR NR NR NR Run 4 Avg

SGS Labs - coal testing, all units are dry basis. Ash Heat Value Sulfur Beryllium Lead Chlorine FluorineArsenicMercury Date Time Sample ID (%) (Btu/lb) (%) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g)(ug/g) 10/31/2009 18:35 1 Hr Test - Run 1 34.08 8257 1.70 1.9 19 84 150 8 0.24 10/31/2009 23:00 2 Hr Test - Run 1 33.28 8341 1.68 1.8 19 57 170 8 0.27 11/1/2009 2:00 1 Hr Test - Run 2 34.94 8141 1.74 2.0 22 68 190 9 0.33
Page 62 of 75

## 11/1/2009 4:00 Special HG Test 30B 

## 36.61 7942 1.74 2.0 24 78 190 10 0.27

11/1/2009 17:50 2 Hr Test - Run 2 35.02 8124 1.69 1.9 18 77 180 6 0.24 11/2/2009 0:18 1 Hr Test - Run 3 36.89 7905 1.63 1.8 20 76 190 7 0.25 11/2/2009 14:18 2 Hr Test - Run 3 33.63 8367 2.00 1.9 53 75 170 16 0.31 11/2/2009 17:15 OTM-28 - Run 4 33.93 8340 1.74 1.9 51 76 190 9 0.25

Antimony Barium Cadmium Cobalt Chromium CopperManganeseNickelVanadiumSelenium Date Time Sample ID (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g) (ug/g)(ug/g)(ug/g) 10/31/2009 23:00 2 Hr Test - Run 1 <2 137 <0.7 8 31 53 65 19 100 9 11/1/2009 17:50 2 Hr Test - Run 2 2 159 <0.8 8 34 54 70 23 116 9 11/2/2009 14:18 2 Hr Test - Run 3 <2 144 <0.7 7 33 53 59 19 102 11



# 3. Sandow Station Units 5A and 5B Inlet Ducts (I.D.) and Stacks

Fuel: 100% Lignite

Unit Load and coal data for report 3 is idential to data from report 2 for corresponding dates.

Fuel ID or name Estimated Heat Value used during Test Unit Load Coal flow ratecoal moistureCoal flow rate Ash Btu/lb Sulfur this sample run Date MW TPH (as rec'd) (dry %) (lb/hr, dry) (dry %) (dry) (dry %)

5A I.D.-1 10/28/2009 NR NR - - - - NR NR NR 5A I.D.-1B 10/28/2009 NR NR - - - - NR NR NR 5A I.D.-3 10/30/2009 NR NR - - - - NR NR NR 5A I.D.-3 10/30/2009 NR NR - - - - NR NR NR 5A I.D.-3B 10/30/2009 NR NR - - - - NR NR NR 5A I.D.-4 11/5/2009 NR NR - - - - NR NR NR 5A I.D.-4 11/5/2009 NR NR - - - - NR NR NR 5A I.D.-4B 11/5/2009 NR NR - - - - NR NR NR

5A Stack-1 10/28/2009 NR NR - - - - NR NR NR 5A Stack-4 11/5/2009 NR NR - - - - NR NR NR 5A Stack-5 11/5/2009 NR NR - - - - NR NR NR

5B I.D.-1 10/31/2009 NR NR - - - - NR NR NR 5B I.D.-1 10/31/2009 NR NR - - - - NR NR NR 5B I.D.-1B 10/31/2009 NR NR - - - - NR NR NR 5B I.D.-2 11/1/2009 NR NR - - - - NR NR NR 5B I.D.-2/2B 11/1/2009 NR NR - - - - NR NR NR 5B I.D.-3 11/2/2009 NR NR - - - - NR NR NR 5B I.D.-3/3B 11/2/2009 NR NR - - - - NR NR NR

5B Stack-2 11/1/2009 NR NR - - - - NR NR NR 5B Stack-3 11/1/2009 NR NR - - - - NR NR NR
Page 63 of 75

## 5B Stack-4 11/2/2009 NR NR - - - - NR NR NR



# 4. Martin Lake Unit 3 ACI Testing on Mercury Removal

For fuel type, refer to Table 2-23. Fuel Air Fuel

Coal Sample Date / ID Ash (% dry) Sulfur (% dry) Heat Value

Btu/lb (dry) ppm Cl ppm Hg Max Hg lb/TBtuMax HCl ppmv Total Hg

lb/TBtu OHM 7/24/2008 18.6 1.42 10,000 100 0.12 12.00 10.01 19.77 7/25/2008 13.2 0.91 10,870 100 0.10 9.20 9.26 15.78 7/26/2008 17.9 1.21 10,270 200 0.14 13.63 9.90 17.29 7/27/2008 14.4 1.39 10,650 700 0.12 11.27 10.03 14.36 7/28/2008 14.0 1.32 10,800 100 0.13 12.04 9.38 14.74 7/29/2008 17.9 1.24 10,220 100 0.14 13.70 9.68 15.97 7/30/2008 22.3 1.28 9,510 100 0.11 11.57 10.98 17.12 7/31/2008 13.9 1.19 10,810 300 0.13 12.03 9.42

- 8/1/2008 19.1 1.51 10,140 300 0.13 12.82 10.06

- 8/3/2008 17.0 1.23 10,600 100 0.15 14.15 10.07 18.66 8/4/2008 17.0 1.15 10,480 100 0.13 12.4 10.32 17.39 8/6/2008 13.5 0.97 11,250 100 0.10 8.89 10.11 12.23 8/7/2008 14.5 1.06 10,700 900 0.12 11.21 9.85 13.52 8/8/2008 14.0 1.01 10,380 100 0.10 9.63 9.98 15.57 8/9/2008 15.5 1.08 10,680 200 0.14 13.11 10.05 16.01 8/10/2008 11.9 1.03 11,040 100 0.11 9.96 8.85 17.26 8/13/2008 26.1 1.24 9,180 100 0.12 13.07 10.77 19.94 8/14/2008 16.6 1.18 10,430 100 0.13 12.46 9.49 17.73 8/15/2008 17.4 1.25 10,420 100 0.12 11.52 9.67 18.52 8/16/2008 22.3 1.47 9,610 100 0.15 15.61 10.30

- 8/17/2008 11.5 1.46 11,030 100 0.11 9.97 9.17

- 8/18/2008 12.7 1.47 10,960 100 0.16 14.60 9.10 17.27 8/19/2008 14.8 1.24 10,670 200 0.10 9.37 18.29

- 8/20/2008 15.5 1.04 10,400 200 0.10 9.62 19.01 15.57 8/21/2008 12.9 1.13 10,890 200 0.11 10.10 18.91 15.16 8/23/2008 14.6 1.21 11,150 200 0.10 8.97 19.00 13.68 8/24/2008 16.3 1.26 10,340 200 0.12 11.61 19.50

- 8/25/2008 12.1 0.97 11,120 100 0.11 9.89 9.20 12.73 8/26/2008 16.6 1.78 10,540 200 0.13 12.33 18.94 13.81 8/28/2008 14.6 0.78 10,570 100 0.09 8.51 9.16 12.16 8/29/2008 (1) 16.1 1.20 10,470 200 0.13 12.42 18.77 16.43 8/29/2008 (2) 13.2 1.36 10,900 200 0.13 11.93 18.63 16.79 8/29/2008 (3) 11.6 1.28 11,170 300 0.10 8.95 26.25 17.22 8/31/2008 (1) 11.9 1.23 11,170 100 0.14 12.53 10.30 14.58 8/31/2008 (2) 13.6 1.03 10,960 100 0.14 12.77 8.89 14.61 8/31/2008 (3) 13.2 1.31 10,970 100 0.15 13.67 9.13 18.11
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## 8/31/2008 (4) 15.8 1.41 11,380 200 0.16 14.06 18.68 18.01 9/01/2008 (1) 19.1 2.14 10,110 100 0.21 20.77 9.43 18.87 9/01/2008 (2) 18.7 1.59 10,150 100 0.15 14.78 8.57 18.87 9/5/2008 19.7 1.74 9,880 300 0.10 10.12 28.67 15.73 9/06/2008 (1) 15.4 1.29 10,520 100 0.10 9.51 9.13 14.93 9/06/2008 (2) 12.7 1.15 10,830 100 0.11 10.16 9.40 17.76 9/7/2008 13.9 1.23 10,730 300 0.14 13.05 27.83 16.57 9/8/2008 15.6 1.05 10,620 200 0.11 10.36 19.12 16.7 9/09/2008 (1) 15.4 1.08 10,740 200 0.14 13.04 19.38 15.95 9/09/2008 (2) 13.4 1.33 10,850 200 0.11 10.14 18.24 15.95 9/10/2008 (1) 16.9 1.13 10,330 200 0.10 9.68 19.73 16.79 9/10/2008 (2) 19.4 0.84 10,900 200 0.12 11.01 17.47 16.79 9/11/2008 15.5 0.96 10,560 200 0.17 16.10 19.93 18.98



# 5. Big Brown Unit 1--Boiler Outlet, ESP Outlet, and Stack

Coal Blend:Nominal 70% lignite and 30% Powder River Basin (subbituminous) coal

COAL TESTING Heat Value Dry Basis Ash Sulfur Btu/lb Chloride Mercury Fluoride Selenium Sample DateSample Time Coal Feeder (dry %) (dry %) (dry) ppm ppm ppm ppm 11/6/2007 11:00 AM A,B,C,D 14.72 1.04 10,783 114 0.18 70 2.459 11/6/2007 11:00 AM E,F,G,H 13.92 1.20 10,852 123 0.22 118 1.784 11/7/2007 9:00 AM A,B,D 14.02 1.16 10,911 110 0.25 49 4.127 11/7/2007 9:00 AM E,F,G,H 12.43 1.03 10,961 127 0.22 90 4.859 11/7/2007 14:00 PM A,B,D 10.82 0.82 11,222 79 0.21 92 5.250 11/7/2007 14:00 PM E,F,G,H 11.65 0.83 11,146 126 0.22 45 3.048 11/8/2007 9:00 AM A,B,D 12.12 1.07 11,194 84 0.41 46 3.694 11/8/2007 9:00 AM E,F,G,H 11.48 0.87 11,148 95 0.26 49 4.204 11/8/2007 14:00 PM A,B,D 13.55 1.03 10,858 110 0.22 48 4.630 11/8/2007 14:00 PM E,F,G,H 13.37 1.11 10,819 59 0.25 150 3.617 11/9/2007 9:00 AM A,B,D 12.32 1.34 11,194 93 0.25 67 2.675 11/9/2007 9:00 AM E,F,G,H 14.27 1.37 10,701 83 0.27 147 3.532 11/9/2007 14:00 PM A,B,D 12.45 1.24 11,238 51 0.24 177 <1.50 11/9/2007 14:00 PM E,F,G,H 12.46 1.11 11,212 110 0.15 266 <1.50 11/10/2007 9:00 AM A,B,D 12.56 0.96 11,168 86 0.21 738 2.274 11/10/2007 9:00 AM E,F,G,H 12.43 1.02 11,010 96 0.21 61 1.600 11/10/2007 14:00 PM A,B,D 12.51 0.96 11,227 131 0.24 172 2.228 11/10/2007 14:00 PM E,F,G,H 13.38 1.00 10,937 89 0.21 46 4.152 11/11/2007 9:00 AM A,B,D 13.23 0.97 11,064 59 0.22 61 2.401 11/11/2007 9:00 AM E,F,G,H 12.83 0.99 11,114 101 0.20 87 3.921 11/11/2007 14:00 PM A,B,D 14.10 1.38 11,024 126 0.19 156 1.927 11/11/2007 14:00 PM E,F,G,H 13.65 1.27 12,377 197 0.17 107 2.893 11/12/2007 9:00 AM A,B,D 14.02 1.09 10,954 154 0.18 67 <1.50 11/12/2007 9:00 AM E,F,G,H 13.42 1.12 11,115 128 0.19 63 <1.50
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## 11/12/2007 14:00 PM A,B,D 12.26 1.14 11,196 104 0.18 271 <1.50

11/12/2007 14:00 PM E,F,G,H 13.34 1.13 11,069 121 0.19 39 <1.50 11/13/2007 9:00 AM A,B,D 11.36 0.96 11,217 166 0.11 398 <1.50 11/13/2007 9:00 AM E,F,G,H 13.59 1.01 10,978 113 0.15 105 2.34 11/15/2007 9:00 AM A,B,D 14.34 1.09 10,807 115 0.18 60 <1.50 11/15/2007 9:00 AM E,F,G,H 15.94 1.08 10,563 103 0.16 30 1.884 11/15/2007 14:00 PM A,B,D 14.31 1.10 10,799 114 0.16 46 2.279 11/15/2007 14:00 PM E,F,G,H 15.92 0.96 10,578 159 0.15 29 <1.50 11/16/2007 9:00 AM A,B,D 9.78 0.88 11,392 107 0.13 49 3.232 11/16/2007 9:00 AM E,F,G,H 12.19 0.93 11,038 145 0.12 94 <1.50 11/16/2007 14:00 PM A,B,D 13.87 0.93 10,895 115 0.12 51 2.436 11/16/2007 14:00 PM E,F,G,H 14.12 1.01 10,876 161 0.12 114 2.490 11/17/2007 9:00AM A,B,D 18.14 0.94 10,379 91 0.14 36 1.739 11/17/2007 9:00AM E,F,G,H 19.24 1.25 10,181 93 0.19 41 2.303 11/23/2007 11:00AM A,B,D 13.53 0.86 10,996 110 0.21 142 1.318 11/23/2007 11:00AM E,F,G,H 16.01 0.86 10,617 105 0.23 91 3.071 11/23/2007 14:00PM A,B,D 17.52 1.02 10,361 107 0.30 98 1.777 11/23/2007 14:00PM E,F,G,H 16.16 0.96 13,090 159 0.24 93 1.789 11/24/2007 9:00AM A,B,D 19.75 0.70 10,019 122 0.21 116 <1.50 11/24/2007 9:00AM E,F,G,H 16.00 0.66 10,589 97 0.22 88 3.186 11/26/2007 9:00AM A,B,D 16.83 0.97 10,582 97 0.11 66 <1.50 11/26/2007 9:00AM E,F,G,H 12.46 0.90 11,096 114 0.17 47 2.778 11/26/2007 14:00PM A,B,D 16.63 0.95 10,480 90 0.19 63 1.122 11/26/2007 14:00PM E,F,G,H 14.21 0.80 10,775 97 0.15 58 2.396 11/27/2007 9:00AM A,B,D 13.04 1.13 11,020 59 0.29 110 3.489 11/27/2007 9:00AM E,F,G,H 15.11 1.44 10,781 58 0.40 46 3.037 11/27/2007 14:00PM A,B,D 12.04 0.95 11,087 99 0.22 48 5.417 11/27/2007 14:00PM E,F,G,H 12.59 1.03 11,099 114 0.29 61 4.063 11/28/2007 9:00AM A,B,D 11.62 0.97 11,733 223 0.17 59 3.046 11/28/2007 9:00AM E,F,G,H 15.38 1.10 10,868 120 0.23 64 3.596 11/28/2007 14:00PM A,B,D 14.44 1.06 10,897 177 0.23 61 3.790 11/28/2007 14:00PM E,F,G,H 14.60 1.19 10,947 112 0.30 57 4.299 11/29/2007 9:00AM A,B,D 15.14 1.18 10,870 98 0.23 67 4.858 11/29/2007 9:00AM E,F,G,H 19.22 1.10 10,331 101 0.23 68 2.875 11/29/2007 14:00PM A,B,D 15.01 1.17 10,855 168 0.23 64 2.374 11/29/2007 14:00PM E,F,G,H 16.76 1.18 10,665 134 0.25 66 4.073 11/30/2007 9:00AM A,B,D 15.77 1.03 10,735 168 0.17 77 2.662 11/30/2007 9:00AM E,F,G,H 12.67 1.05 11,220 219 0.19 96 4.012 12/1/2007 9:00AM A,B,D 12.43 0.95 11,163 127 0.13 75 2.258 12/1/2007 9:00AM E,F,G,H 13.97 1.04 10,995 104 0.13 78 3.848 12/2/2007 9:00AM A,B,D 12.72 1.04 11,184 93 0.14 74 3.464 12/2/2007 9:00AM E,F,G,H 13.90 1.01 11,014 249 0.17 158 3.993 12/3/2007 9:00AM A,B,D 13.76 1.00 10,907 82 0.13 62 NA 12/3/2007 9:00AM E,F,G,H 12.23 0.94 11,254 100 0.12 64 NA 12/4/2007 9:00AM A,B,D 13.76 1.13 10,942 90 0.20 66 NA 12/4/2007 9:00AM E,F,G,H 13.99 1.04 10,008 117 0.17 66 NA

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## FLY ASH TESTING Fly Ash

Sample DateSample Time Source LOI % 11/7/2007 9:00 AM ESP 0.44 11/7/2007 14:00 PM ESP 0.48 11/8/2007 9:30 AM ESP 0.46 11/8/2007 14:30 PM ESP 0.50 11/9/2007 9:30 AM ESP 0.53 11/9/2007 14:30 PM ESP 0.56 11/10/2007 9:30 AM ESP 0.72 11/10/2007 14:00 PM ESP 0.79 11/11/2007 9:30 AM ESP 0.88 11/11/2007 14:30 PM ESP 0.78 11/12/2007 9:30 AM ESP 0.76 11/12/2007 14:30 PM ESP 1.27 11/13/2007 9:30 AM ESP 0.91 11/15/2007 9:30 AM ESP 0.62 11/15/2007 14:30 PM ESP 0.69 11/16/2007 10:00 AM ESP 1.30 11/16/2007 14:00 PM ESP 1.33 11/17/2007 10:00 AM ESP 1.03 11/23/2007 10:00 AM ESP 1.36 11/23/2007 14:00 PM ESP 1.39 11/24/2007 10:00 AM ESP 1.08 11/26/2007 10:00 AM ESP 0.38 11/26/2007 14:00 PM ESP 0.50 11/27/2007 10:00 AM ESP 1.53 11/27/2007 14:30 PM ESP 2.19 11/28/2007 10:00 AM ESP 2.00 11/28/2007 14:30 PM ESP 2.07 11/29/2007 10:00 AM ESP 0.77 11/29/2007 14:30 PM ESP 1.39 11/30/2007 11:00 AM ESP 1.82 12/1/2007 9:30 AM ESP 0.72 12/2/2007 10:00 AM ESP 1.76 12/3/2007 10:00 AM ESP 1.47 12/4/2007 10:00 AM ESP 0.38 11/9/2007 16:30 PM BH 1.53 11/10/2007 11:00 AM BH 1.67 11/11/2007 11:00 AM BH 1.68



# 6. Monticello Unit 2 ACI Study

COAL TESTING
Page 67 of 75

## Heat Value Unit Load Coal flow rate Coal MoistureCoal flow rate Ash Btu/lb Sulfur Chloride Hg FluorideBromideSe Sample Date MW TPH (as rec'd) (%) (lb/hr, dry) (dry %) (dry) (dry %) ppm ppm ppm ppm ug/g 9/30/2007 NR NR 17.40 NR 16.22 10524 1.05 36 0.20 39 ND 2.27 9/30/2007 NR NR 17.82 NR 16.09 10492 0.75 63 0.25 39 ND 4.29 9/30/2007 NR NR 15.75 NR 12.71 10917 0.65 68 0.20 42 ND <1.5 10/1/2007 NR NR 16.22 NR 9.42 11509 0.58 139 0.08 46 ND <1.5 10/2/2007 NR NR 22.97 NR 7.20 11821 0.53 80 0.07 42 ND <1.5 10/2/2007 NR NR 16.63 NR 7.03 11833 0.54 68 0.09 46 ND 1.86 10/2/2007 NR NR 18.56 NR 8.32 11652 0.57 60 0.09 37 ND 3.43 10/3/2007 NR NR 21.47 NR 8.13 11648 0.61 13 0.07 36 ND 2.56 10/3/2007 NR NR 18.68 NR 8.91 11519 0.64 12 0.13 28 ND 2.27 10/3/2007 NR NR 19.01 NR 8.28 11553 0.57 11 0.11 23 ND <1.5 10/3/2007 NR NR 22.06 NR 7.10 11733 0.56 15 0.08 26 ND 2.09 10/3/2007 NR NR 20.52 NR 8.25 11683 0.57 86 0.10 35 ND 4.08 10/4/2007 NR NR 19.95 NR 9.19 11520 0.58 66 0.08 45 ND 2.46 10/4/2007 NR NR 22.20 NR 10.04 11404 0.61 253 0.12 51 ND <1.5 10/4/2007 NR NR 25.52 NR 9.51 11396 0.54 371 0.08 56 ND 1.95 10/4/2007 NR NR 24.81 NR 9.34 10961 0.58 80 0.11 48 ND 2.93 10/4/2007 NR NR 22.96 NR 8.31 11940 0.58 62 0.70 57 ND 2.89 10/5/2007 NR NR 22.03 NR 6.66 11799 0.58 10 0.80 35 ND <1.5 10/5/2007 NR NR 17.86 NR 6.76 11755 0.61 9 0.80 29 ND <1.5 10/5/2007 NR NR 14.77 NR 7.40 11660 0.56 16 0.11 33 ND 2.49 10/5/2007 NR NR 19.68 NR 7.68 11662 0.5 14 0.08 36 ND 2.42 10/7/2007 NR NR 23.56 NR 6.96 11745 0.38 27 0.06 84 ND 1.34 10/7/2007 NR NR 21.88 NR 6.96 11717 0.43 25 0.07 38 ND 1.96 10/7/2007 NR NR 22.27 NR 8.86 11528 0.51 27 0.08 31 ND 2.65 10/8/2007 NR NR 22.98 NR 7.23 11665 0.41 16 0.06 39 ND 2.82 10/8/2007 NR NR 19.24 NR 8.96 11363 0.47 28 0.10 36 ND 3 10/8/2007 NR NR 21.39 NR 8.09 11632 0.55 25 0.06 39 ND 3.31 10/8/2007 NR NR 21.55 NR 13.65 10910 0.41 14 0.07 41 ND 3.57 10/8/2007 NR NR 24.06 NR 8.14 11589 0.45 14 0.08 41 ND 2.78 10/8/2007 NR NR 25.32 NR 6.61 11760 0.4 24 0.06 38 ND 2.4 10/8/2007 NR NR 25.47 NR 6.80 11738 0.41 16 0.06 22 ND 2.33 10/8/2007 NR NR 21.51 NR 6.92 11739 0.42 17 0.11 23 ND 2.21 10/9/2007 NR NR 25.21 NR 7.46 11730 0.6 16 0.12 22 ND 3.23 10/9/2007 NR NR 27.53 NR 8.16 11589 0.58 18 0.14 35 ND 2.82 10/9/2007 NR NR 26.35 NR 6.42 11866 0.57 16 0.11 17 ND 4.12 10/9/2007 NR NR 25.51 NR 7.45 11648 0.56 16 0.09 32 ND 1.73 10/9/2007 NR NR 22.45 NR 7.14 11685 0.59 17 0.09 30 ND 3.08 10/9/2007 NR NR 22.95 NR 7.24 11622 0.58 16 0.08 72 ND 3.27 10/9/2007 NR NR 25.36 NR 8.07 11628 0.53 17 0.09 33 ND 2.94 10/10/2007 NR NR 24.73 NR 7.00 11671 0.49 18 0.05 22 ND 2.64 10/11/2007 NR NR 23.80 NR 6.93 11898 0.58 62 0.21 47 ND 3.57 10/11/2007 NR NR 23.96 NR 9.07 11520 0.56 48 0.14 29 ND 1.11 10/12/2007 NR NR 27.08 NR 9.56 11409 0.55 38 0.16 32 ND 3.3

Page 68 of 75

## 10/13/2007 NR NR 21.83 NR 9.11 11460 0.57 68 0.09 40 ND 2.73

10/13/2007 NR NR 25.31 NR 8.07 11556 0.53 60 0.08 39 ND 2.57 10/14/2007 NR NR 20.01 NR 8.05 11907 0.6 47 0.05 30 ND 1.99 10/15/2007 NR NR 20.12 NR 7.85 11712 0.5 28 0.08 30 ND 1.55 10/15/2007 NR NR 17.44 NR 7.76 11754 0.59 37 0.11 27 ND 1.31 10/15/2007 NR NR 18.72 NR 7.36 11747 0.51 22 0.35 23 ND 2.26 10/16/2007 NR NR 21.70 NR 7.29 11858 0.65 53 0.28 33 ND 2.01 10/17/2007 NR NR 21.62 NR 19.09 10137 0.58 41 0.15 68 ND 3.17 10/17/2007 NR NR 26.93 NR 8.99 11490 0.65 88 0.12 35 ND 2.53 10/18/2007 NR NR 25.84 NR 7.58 11654 0.48 23 0.09 20 ND 1.36 10/19/2007 NR NR 23.59 NR 9.21 11460 0.62 22 0.10 31 ND 1.2 10/19/2007 NR NR 23.73 NR 10.12 11323 0.57 41 0.09 38 ND 2.41 10/20/2007 NR NR 23.85 NR 7.34 11775 0.64 23 0.08 20 ND 1.87 10/21/2007 NR NR 17.74 NR 10.99 11118 0.71 81 0.28 35 ND 1.75 10/21/2007 NR NR 15.02 NR 9.47 11358 0.61 65 0.16 42 ND 3.17 10/22/2007 NR NR 20.77 NR 16.09 10362 0.73 129 0.38 67 ND 3.34 10/23/2007 NR NR 21.79 NR 23.50 9326 0.87 121 0.52 67 ND 5.54 10/24/2007 NR NR 22.59 NR 10.89 11099 0.63 93 0.20 40 ND 3.19 10/24/2007 NR NR 24.27 NR 9.56 11237 0.71 100 0.15 38 ND 4.39 10/24/2007 NR NR 24.09 NR 20.13 9972 1 56 0.31 41 ND 6.43 10/25/2007 NR NR 20.58 NR 22.73 9273 0.72 106 0.22 79 ND 4.82 10/25/2007 NR NR 24.93 NR 17.92 10176 0.79 138 0.27 62 ND 5.99 10/26/2007 NR NR 21.91 NR 8.12 11626 0.61 89 0.09 52 ND 1.86 10/27/2007 NR NR 23.01 NR 18.83 10093 0.76 117 0.20 54 ND 3.04 10/29/2007 NR NR 24.56 NR 13.56 10924 0.74 119 0.17 60 ND 2.02 10/30/2007 NR NR 18.52 NR 20.16 9929 0.8 107 0.23 68 ND 3.87 10/31/2007 NR NR 20.67 NR 12.82 10932 0.67 111 0.20 51 ND 2.2

FLY ASH TESTING Fly Ash Fly Ash Sample DateSample Time Source LOI % Sample Date Sample Time Source LOI % 9/30/2007 9:00 AM BH 0.32 9/30/2007 9:00 AM ESP 0.29 9/30/2007 12:00 PM BH 0.31 10/1/2007 3:00 PM ESP 0.59 10/1/2007 3:00 PM BH 0.45 10/2/2007 7:20 AM ESP 0.41 10/2/2007 7:20 AM BH 0.56 10/2/2007 11:00 AM ESP 0.42 10/2/2007 11:00 AM BH 0.46 10/2/2007 3:00 PM ESP 0.54 10/2/2007 3:00 PM BH 0.49 10/3/2007 7:00 AM ESP 0.76 10/3/2007 7:00 AM BH 0.62 10/3/2007 10:10 AM ESP 0.89 10/3/2007 10:10 AM BH 0.66 10/3/2007 14:00 PM ESP 1.14 10/3/2000 14:00 PM BH 0.67 10/3/2007 16:00 PM ESP 1.25 10/3/2007 16:00 PM BH 0.75 10/3/2007 19:00 PM ESP 1.44 10/3/2007 19:00 PM BH 0.73 10/4/2007 14:30 PM ESP 0.67 10/4/2007 14:30 PM BH 0.53 10/4/2007 17:00 PM ESP 0.75 10/5/2007 7:00 AM BH 0.72 10/5/2007 7:30 AM ESP 2.41 10/5/2007 9:30 AM BH 0.82 10/5/2007 9:30 AM ESP 2.69 10/5/2007 12:00 PM BH 0.98 10/5/2007 12:00 PM ESP 2.57 Page 69 of 75

## 10/5/2007 14:00 PM BH 1.11 10/5/2007 14:00 PM ESP 3.05

10/7/2007 15:00 PM BH 0.60 10/7/2007 15:00 PM ESP 1.45 10/7/2007 17:00 PM BH 0.87 10/7/2007 17:00 PM ESP 1.62 10/7/2007 18:30 PM BH 0.97 10/7/2007 19:00 PM ESP 1.86 10/7/2007 19:00 PM BH 1.17 10/8/2007 7:20 AM ESP 0.87 10/8/2007 7:00 AM BH 0.60 10/8/2007 9:20 AM ESP 0.83 10/8/2007 9:00 AM BH 0.56 10/8/2007 11:20 AM ESP 0.81 10/8/2007 11:00 AM BH 0.56 10/8/2007 13:20 PM ESP 0.81 10/8/2007 13:00 PM BH 0.53 10/8/2007 15:20 PM ESP 0.94 10/8/2007 15:00 PM BH 0.57 10/8/2007 18:30 PM ESP 1.19 10/8/2007 18:45 PM BH 0.62 10/9/2007 7:00 AM ESP 1.07 10/9/2007 7:30 AM BH 0.68 10/9/2007 9:00 AM ESP 1.01 10/9/2007 9:00 AM BH 0.56 10/9/2007 11:00 AM ESP 0.91 10/9/2007 12:30 AM BH 0.58 10/9/2007 14:00 PM ESP 0.93 10/9/2007 14:00 PM BH 0.56 10/9/2007 15:30 PM ESP 0.84 10/9/2007 15:00 PM BH 0.55 10/9/2007 18:50 PM ESP 0.44 10/9/2007 16:30 PM BH 0.55 10/10/2007 17:00 PM ESP 1.01 10/9/2007 19:00 PM BH 0.6 10/11/2007 15:00 PM ESP 0.90 10/10/2007 17:00 PM BH 0.58 10/11/2007 9:00 AM ESP 1.49 10/11/2007 9:00 AM BH 0.59 10/12/2007 12:00 PM ESP 1.10 10/11/2007 13:00 PM BH 0.50 10/13/2007 8:00 AM ESP 1.12 10/12/2007 12:00 PM BH 0.61 10/13/2007 14:00 PM ESP 0.95 10/13/2007 8:00 AM BH 0.54 10/24/2007 9:30 AM ESP 0.31 10/13/2007 14:00 PM BH 0.60 10/15/2007 8:00 AM ESP 0.43 10/14/2007 9:30 AM BH 0.37 10/15/2007 15:00 PM ESP 0.44 10/15/2007 16:30 PM BH 0.21 10/16/2007 15:00 PM ESP 0.23 10/15/2007 15:00 PM BH 0.37 10/17/2007 9:30 AM ESP 0.40 10/16/2007 15:00 PM BH 0.23 10/17/2007 14:00 PM ESP 0.80 10/17/2007 10:00 AM BH 0.24 10/18/2007 12:00 PM ESP 0.90 10/17/2007 14:00 PM BH 0.25 10/19/2007 8:30 AM ESP 0.30 10/18/2007 12:00 PM BH 0.44 10/19/2007 10:30 AM ESP 1.07 10/18/2007 8:30 AM BH 0.30 10/20/2007 12:00 PM ESP 0.95 10/18/2007 10:30 AM BH 0.47 10/21/2007 10:30 AM ESP 0.56 10/20/2007 12:00 PM BH 0.41 10/21/2007 12:00 PM ESP 0.78 10/21/2007 10:30 AM BH 0.19 10/22/2007 9:30 AM ESP 0.98 10/21/2007 12:00 PM BH 0.45 10/23/2007 10:30 AM ESP 0.65 10/22/2007 9:30 AM BH 0.49 10/24/2007 10:30 AM ESP 0.23 10/23/2007 10:30 AM BH 0.40 10/24/2007 14:00 PM ESP 0.17 10/24/2007 10:30 AM BH 0.28 10/24/2007 17:30 PM ESP 0.21 10/24/2007 14:00 PM BH 0.24 10/25/2007 12:00 PM ESP 0.13 10/24/2007 17:30 PM BH 0.11 10/26/2007 10:00 AM ESP 0.16 10/25/2007 12:00 PM BH 0.13 10/27/2007 10:00 AM ESP 0.84 10/26/2007 10:00 AM BH 0.18 10/29/2007 9:00 AM ESP 0.85 10/27/2007 10:00 AM BH 0.41 10/30/2007 10:00 AM ESP 0.16 10/29/2007 9:00 AM BH 0.51 10/31/2007 10:00 AM ESP 0.18 10/30/2007 10:00 AM BH 0.13 10/31/2007 10:00 AM BH 0.31 Page 70 of 75

# 7. Big Brown Unit 2 ACI Options

Fuel ID or name Heat Value used duringUnit Load Coal flow rate Estimated Coal flow rate Ash Btu/lb Sulfur Hg Se Cl this sample run MW TPH (as rec'd) coal moisture (lb/hr, dry) (dry %) (dry) (dry %) (ppm) (ppm) (ppm)

Baseline testing70% lignite / 30% PRB (70/30) 1/18/2006 >480 NR 32.2 NR 11.33 11,398 0.97 0.266 1/19/2006 >480 NR 30.6 NR 17.69 10,432 1.08 0.262 1/20/2006 >480 NR 30.7 NR 14.10 11,004 0.89 0.333 17 Std ACI Testing70/30 1/23/2006 >480 NR 31.6 NR 14.65 10,763 0.99 0.204 1/24/2006 >480 NR 32.3 NR 16.04 10,486 0.99 0.263 EERC SEA 4 and ACI70/30 2/2/2006 >480 NR 31.2 NR 15.29 10,999 0.96 0.275 2/4/2006 >480 NR 32.6 NR 15.64 10,358 1.05 0.219 EERC Enhanced ACI70/30 2/6/2008 >480 NR 32.3 NR 15.44 10,533 1.23 0.231 2/8/2006 >480 NR 31.2 NR 15.93 10,195 1.03 0.278 Monthlong test70/30 2/27/2006 >480 NR 30.7 NR 17.11 10,284 1.23 0.22 2/28/2006 >480 NR 31.4 NR 14.80 10,325 1.18 0.261 20 3/1/2006 >480 NR 31.3 NR 16.54 10,307 1.40 0.216 17 3/2/2006 >480 NR 31.8 NR 11.35 11,048 1.06 0.239 3/3/2006 >480 NR 30.6 NR 18.47 10,281 1.07 0.258 3/4/2006 >480 NR 31.9 NR 12.38 11,060 1.16 0.229 4.48 3/5/2006 >480 NR 33 NR 13.79 10,679 1.36 0.214 3.47 3/6/2006 >480 NR 32 NR 15.34 10,509 1.51 0.188 3.3 3/7/2006 >480 NR 31.2 NR 17.89 10,150 1.53 0.254 4.63 3/15/2005 >480 NR 32.1 NR 16.48 10,576 1.18 0.259 3.78 3/16/2006 >480 NR 31.8 NR 15.23 10,622 1.03 0.253 26 3/17/2006 >480 NR 32.3 NR 13.23 10,576 0.96 0.22 21 3/18/2006 >480 NR 31.5 NR 16.55 10,358 1.47 0.179 3.34 3/20/2006 >480 NR 30.9 NR 18.18 10,295 0.90 0.232 31 3/21/2006 >480 NR 31.1 NR 21.19 9,151 1.03 0.185 17 3/22/2006 >480 NR 31.6 NR 14.58 11,072 1.01 0.145 12 3/23/2006 >480 NR 32.1 NR 15.17 10,730 0.96 0.211 3.81 3/24/2006 >480 NR 31.9 NR 16.73 10,325 1.12 0.227 3.97 3/25/2006 >480 NR 32 NR 17.87 10,438 1.25 0.206 3.47 3/26/2006 >480 NR 31.4 NR 16.33 10,165 1.14 0.223 3.53 3/27/2006 >480 NR 31.7 NR 12.50 10,917 1.26 0.209 2.67 3/28/2006 >480 NR 32.5 NR 16.13 10,338 1.17 0.223 2.83

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## NO COAL TESTING DATA FOR REPORTS 8 - 10



# 11. Monticello Unit 3 Ammonia/ESP Study
Heat Value Unit Load Coal flow rate Coal flow rate Ash Btu/lb Sulfur Hg Fly Ash Date Fuel Type MW TPH (as rec'd)Coal Moisture (lb/hr, dry) (dry %) (dry) (dry %) ppm dryLOI %Comment 10/25/2005PRB subbit. NR NR 31.91 NR 21.69 9891 0.68 0.240 0.189NH3 on 10/25/2005 lignite NR NR 30.71 NR 13.10 11095 0.64 0.195 0.198NH3 on 10/26/2005PRB subbit. NR NR NR NR NR NR NR 0.125 0.241NH3 off 10/26/2005 lignite NR NR NR NR NR NR NR 0.224 0.274NH3 off



# 12. CEM Validation at Big Brown Unit 1

Heat Value Unit Load Coal flow rate Coal flow rate Ash Btu/lb Sulfur Date Fuel Type MW TPH (as rec'd)Coal Moisture (lb/hr, dry) (dry %) (dry) (dry %) 10/25/2005 NR NR NR NR NR 10,879 1.21 11/11/2005 AM NR NR NR NR NR 10,829 0.99 11/11/2005 PM NR NR NR NR NR 10,575 0.96

Date Hg (lb/Btu) Cl (ppm) Se (ppm) 10/25/2005 23.03 NA NA 11/11/2005 AM 28.16 17 5.21 11/11/2005 PM 32.20 18.5 3.82



# 13. Monticello Unit 1 Baseline Studies

Note: For chloride, values of < 100 ppm were counted as 100 ppm.

Blended Coal Data Average data for blended fuels, dry basis Heat Value Mercury Coal Type Ash Sulfur Btu/lb Chloride Mercury Conc. Fly Ash Lignite Subbitum. Date (dry %) (dry %) (dry) ppm ppm lb/TBtu LOI % 54% 46% 10/8/2005 19.88 0.56 10,092 104 0.21 28.37 0.27 53% 47% 10/9/2005 19.84 0.50 10,317 100 0.21 26.14 0.20 49% 51% 10/10/2005 20.28 0.53 10,069 110 0.22 27.15 0.19 50% 50% 10/11/2005 20.85 0.54 10,346 106 0.18 20.12 0.29 49% 51% 10/12/2005 17.15 0.59 10,504 171 0.16 20.05 0.22 53% 47% 10/13/2005 19.98 0.56 10,391 100 0.17 20.76 0.28

70% lignite, 30% PRB subbituminous

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## 50% 50% 10/14/2005 20.24 0.76 10,116 157 0.18 21.63 0.21 57% 43% 10/15/2005 20.19 0.57 10,083 130 0.18 22.96 0.28 49% 51% 10/16/2005 17.46 0.57 10,440 163 0.17 20.32 0.22 50% 50% 10/17/2005 19.95 0.61 10,012 103 0.18 22.34 0.27

Indivual Samples, dry basis Individual Samples Heat Value Mercury Ash Sulfur Btu/lb Chloride Mercury Conc. 54/46 Blend Date (dry %) (dry %) (dry) ppm ppm lb/TBtu

Lignite AM 10/8/2005 25.49 0.60 9,278 100 0.27 36.95 Lignite PM 32.08 0.66 8,404 105 0.32 48.01 Subbitum. AM 10.60 0.56 11,446 111 0.11 12.02 Subbitum. PM 8.25 0.40 11,678 100 0.11 11.58

53/47 Blend

Lignite AM 10/9/2005 22.29 0.55 9,678 100 0.25 33.34 Lignite PM 23.81 0.55 10,491 100 0.25 30.37 Subbitum. AM 13.67 0.44 10,886 100 0.15 16.91 Subbitum. PM 18.78 0.46 10,270 100 0.19 22.47

49/51 Blend

Lignite AM 10/10/2005 25.28 0.57 9,432 119 0.26 34.15 Lignite PM 25.12 0.60 9,385 103 0.27 35.27 Subbitum. AM 12.72 0.49 11,086 107 0.12 12.71 Subbitum. PM 18.39 0.47 10,322 113 0.22 27.06

50/50 Blend

Lignite AM 10/11/2005 25.99 0.60 9,267 114 0.23 27.65 Lignite PM 32.55 0.57 9,309 100 0.22 26.32 Subbitum. AM 13.94 0.51 11,271 110 0.13 13.86 Subbitum. PM 10.93 0.49 11,536 100 0.13 12.63

49/51 Blend

Lignite AM 10/12/2005 25.47 0.61 9,332 179 0.21 27.80 Lignite PM 22.98 0.71 9,740 182 0.21 28.18 Subbitum. AM 10.86 0.46 11,370 142 0.12 11.79 Subbitum. PM 9.84 0.59 11,499 181 0.12 13.05

53/47 Blend

Lignite AM 10/13/2005 30.18 0.65 9,797 100 0.24 30.53 Lignite PM 23.73 0.59 9,557 100 0.20 25.84 Subbitum. AM 14.06 0.51 10,975 100 0.13 14.65 Subbitum. PM 10.20 0.49 11,418 100 0.09 10.12

50/50 Blend

Lignite AM 10/14/2005 22.91 0.58 9,630 196 0.21 26.66

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## Lignite PM 25.91 1.39 9,550 165 0.21 27.21 Subbitum. AM 14.92 0.54 10,791 115 0.14 16.32 Subbitum. PM 17.22 0.54 10,493 150 0.14 16.32

57/43 Blend

Lignite AM 10/15/2005 26.24 0.66 9,193 100 0.18 26.22 Lignite PM 27.59 0.71 9,158 145 0.24 33.16 Subbitum. AM 10.75 0.45 11,348 148 0.18 19.17 Subbitum. PM 11.82 0.41 11,224 134 0.08 8.93

49/51 Blend

Lignite AM 10/16/2005 24.66 0.57 9,416 202 0.21 26.58 Lignite PM 19.69 0.62 10,136 145 0.21 27.40 Subbitum. AM 11.71 0.46 11,213 157 0.14 15.33 Subbitum. PM 14.16 0.63 10,941 149 0.11 12.48

50/50 Blend

Lignite AM 10/17/2005 22.65 0.74 9,673 100 0.23 28.18 Lignite PM 27.76 0.56 8,967 110 0.25 34.82 Subbitum. AM 16.09 0.59 10,443 100 0.13 14.95 Subbitum. PM 13.29 0.55 10,964 100 0.10 11.39



# 13. Martin Lake Unit 2 Baseline Studies

Note: For chloride, values of < 100 ppm were counted as 100 ppm.

Blended Coal Data Average data for blended fuels, dry basis Heat Value Mercury Coal Type Ash Sulfur Btu/lb Chloride Mercury Conc. Fly Ash Lignite Subbitum. Date (dry %) (dry %) (dry) ppm ppm lb/TBtu LOI % 90% 10% 10/20/2005 18.37 1.75 10,367 100 0.14 18.86 0.10 90% 10% 10/21/2005 15.41 1.42 11,055 100 0.11 13.83 0.09 92% 8% 10/23/2005 14.75 1.33 10,883 104 0.09 11.64 0.14 91% 9% 10/25/2005 18.51 1.77 10,296 177 0.13 15.99 0.08 91% 9% 10/26/2005 16.70 1.60 10,540 141 0.12 14.17 0.04 91% 9% 10/27/2005 20.85 1.50 10,143 143 0.10 12.24 0.05 91% 9% 10/28/2005 18.95 1.58 10,740 116 0.15 16.98 0.05

Indivual Samples, dry basis Individual Samples Heat Value Mercury Ash Sulfur Btu/lb Chloride Mercury Conc. 90/10 Blend Date (dry %) (dry %) (dry) ppm ppm lb/TBtu

Lignite PM 10/20/2005 19.58 1.89 10,203 100 0.15 20.14 Subbitum. PM 7.54 0.45 11,846 100 0.07 7.36

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## 90/10 Blend Lignite AM 10/21/2005 16.01 1.48 11,198 100 0.10 12.45 Subbitum. AM 7.64 0.47 11,794 100 0.06 6.28 Lignite PM 16.50 1.57 10,727 100 0.14 17.04 Subbitum. PM 8.03 0.46 11,972 100 0.05 4.95

92/8 Blend

Lignite AM 10/23/2005 17.21 1.49 10,544 100 0.10 13.06 Subbitum. AM 9.44 0.63 11,577 100 0.08 8.20 Lignite PM 13.31 1.31 11,090 109 0.09 11.08 Subbitum. PM 8.27 0.47 11,717 100 0.05 5.14

91/9 Blend

Lignite AM 10/25/2005 20.74 1.77 10,039 157 0.12 14.81 Subbitum. AM 15.82 1.25 10,761 100 0.09 9.61 Lignite PM 17.41 1.94 10,386 191 0.15 18.70 Subbitum. PM 9.86 0.53 11,525 306 0.07 6.79

91/9 Blend

Lignite AM 10/26/2005 17.78 2.05 10,304 152 0.14 16.66 Subbitum. AM 8.83 0.56 11,699 151 0.09 8.26 Lignite PM 17.26 1.35 10,538 129 0.11 12.95 Subbitum. PM 8.03 0.49 11,789 150 0.08 7.16

91/9 Blend

Lignite AM 10/27/2005 22.47 1.75 9,954 133 0.11 14.12 Subbitum. AM 11.18 0.83 11,383 133 0.08 7.85 Lignite PM 20.96 1.34 10,110 155 0.09 10.74 Subbitum. PM 13.08 1.23 11,145 124 0.12 12.68

91/9 Blend

Lignite AM 10/28/2005 17.15 1.42 11,392 102 0.13 14.16 Subbitum. AM 10.77 0.66 11,562 100 0.09 8.01 Lignite PM 22.59 1.93 9,903 134 0.18 21.80 Subbitum. PM 8.43 0.50 11,777 101 0.06 5.64

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