### Analysis Report 

# SG$

April 23, 2010

The Avogadro Group, LLC 2825 Verne Roberts Circle Antioch, CA 94509 USA



### Client Sample 10: 1-fuel-1 

### Date Sampled : Date Received: 04/08/2010 

### Project Name/# : Matrix: Coal 

### Sample 10: Net Sample Weight: 4158.70 9 

### Sample Type: Location: Coal-Fired Boilers 1 and 2 

### Time Sampled:

. Project Name/# : TransAlta Centralia Generation



### SGS Minerals Sample 10: 

### 072-45044·001

As Received 

### % Moisture, Total [ASTM D3302] 

### 28.21 %Ash [ASTM 0 3174/5142) 

### 10.08 

### %Volatile Matter [ASTM 05142] 29.03 

### % Fixed Carbon [ASTM D3172) 

### 32.68 Gross CalorificValue (Btullb) [ASTM 0 5865] 8002 

### % Sulfur [ASTM D4239] 0.35 

### %Carbon [ASTM D5373] 45.82 % 

### Hydrogen [ASTM D 5373] 3.28

. % 

### Nitrogen [ASTM D5373) 

### 0.65 

### %Oxygen (Calc) [ASTM D3176] 11.61 

### Tests Result Unit Pounds ofAsh/mm Btu 12.60 Ib Pounds ofSulfur/mm Btu 0.43 Ib 

### Pounds of S02/mm 

### Btu 0.87 Ib Chlorine, Dry 77 u9/9 Fluorine, Dry 87 ug/g Page 1of 1



### 3/23/2010 10072.2p O/F

### OHAP -1" Moist 600



## Q!Y MAF

14.04 40.44 47.04 

### 45.52 52.96 11147 12968

0.48 63.82

4.57 

### 0.91 

### 16.18 Method

ASTM D6721 ASTM 03761

SGS North America Inc. Minerals Services Division

## ~~ ....-­ -."

### '(5 Somer Rodriguez, Denver Laboratory

4665 Paris StSuite 6·200 Denver CO 80239 t (303) 373-4772 f (303) 373-4791 www.sgs,comfminerals

MemberofSGS Group This document is issued by the Company underits General Conditions ofService accessible athttp://www.sgs.comJlerms_snd_condilions.htm Attention is drawn to the limitation of liability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that information contained hereon reflects the Company's findings at the time of its intervention only and within the limits ofClient's instructions, ifany. The Company's sale responsibility is to its client and this documentdoes notexonerate partiesto a transaction from exerCising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsificaUDn Dfthe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

### Analysis Report

August 30, 2010 Page 1 of 1

The Avogadro Group, LLC 2825Verne Roberts Circle Antioch, CA 94509 USA



### Client Sample ID: 1-fuel-1 Date Sampled: 

### 3/23/2010 Date 

### Received: 04/08/2010 Project Name/# : 10072.2p Matrix: Coal Sample 

### 10 : 

### D/F OHAP SampleType: -1" Moist 

### Location: Coal-Fired Boilers 

### 1 and 2 Time Sampled: 600 Project 

### Namef# : TransAlta Centralia Generation

SGS Minerals Sample ID: 072-45044·001·01

As 

### Received

0/0 Moisture, Total [ASTM 

### 0 3302] 27.99

Tests 

### Result Unit Method TraceAnalysiS Basis Dry Coal Antimony 

### <1 ug/g ASTM 

## D6357 Beryllium 0.4 ug/g ASTM 

### D 6357 Cadmium 

### <0.3 ug/g ASTM 

### D 6357 Cobalt 

### 2 ugfg ASTM 

### D6357 Chromium 12 ug/g ASTM D6357 Manganese 

### 77 ug/g ASTM D 6357 Nickel 11 ug/g ASTM 06357 Lead 

### 4 ug/g ASTM D 6357 Arsenic 

### 3 ugfg ASTM 

### 0 6357 Selenium 

### <1 ugfg SW7740 Mercury, Dry 0.07 ug/g ASTM D 6722 Sample Notes:

Added analysis perclient request.

Method Reference(s): "Test Methodsfor Evaluating Solid Waste", U.S. Environmental Protection Agency, SW-846, 3rd Edition November, 1986

# ~~ --- Somer Rodriguez, Denver Laboratory SGS North America Inc. Minerals Services Division

- ..... 

# '0

4665 Paris SlSuite 8·200 Denver CO 80239 t (303) 373·4772 f (303) 373·4791 www.sgs.com/minerais

MemberofSGS GrQup This document is issued by the Company underits General Conditions ofService accessible at**ht!p:llwww.sgs.com/terms~and_conditlons.htm** Attention Is drawn to the limitation of liability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that information contained hereon reflects the Company'sfindings atthe time ofits Intervention only and within the limits ofClient's Instructions, ifany. The Company's sole responsibility is to its client and this document does not exonerate parties toa transaction from exercising all their rights and obligations under the transaction documents. Any unauthorized alteration, forgery or falSification ofthe content orappearance ofthis document Is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

### Analysis Report

# SG~ April 23, 2010

TheAvogadro Group, LLC 2825

### Verne Roberts Circle 

### Antioch, CA 94509 USA

ClientSample 

### 10: 2-fuel-1 Date Sampled: Date Received: 

### 04/08/2010 Project 

### Name/# : Matrix: Coal Sample 

### 10: Net SampleWeight: 4077.00 g Sample Type: Location: Coal-Fired Bollers 1 and 2 Time Sampled : Project 

### Name/# : TransAlta Centralia Generation

SGS Minerals Sample 

### 10: 072-45044-003

As Received 

### % Moisture, Total [ASTM D 3302J 26.83 

### %Ash [ASTM D 3174/5142] 10.78 

### % Volatile Matter [ASTM D 5142] 29.15 

### % Fixed Carbon [ASTM D 3172] 33.24 Gross CalorificValue (Btullb) [ASTM D 5865] 8143 

### %Sulfur [ASTM D 4239] 0.30 

### %Carbon [ASTM D 5373J 46.58 

### % Hydrogen [ASTM D 5373] 3.30 

### % Nitrogen [ASTM D 5373] 0.65 

### %Oxygen (Calc) [ASTM D 3176] 11.56 Tests Result Unit Pounds ofAsh/mm Btu 13.24 Ib Pounds ofSulfur/mm Btu 

### 0.37 Ib Poundsof 

### S02/mm Btu 0.75 Ib Chlorine, Dry 46 ug/g Fluorine, Dry 

### 86 ug/9 Page 1 of 1



### 3/23/2010 10072.2p DfF OHAP -1" Moist 

### 2045

Q.!y MAF

14.74 39.84 46.73 45.42 53.27 11129 13054

0.42 63.67

4.51 

### 0.89 15.77 Method

ASTM D6721 ASTM D 3761

SGS North America Inc. Minerals Services Division

## ~~ ---­

-..r

## -0 Somer Rodriguez, Denver Laboratory

41'11'15 Paris StSuite 8-200 Denver CO SG239 t (303) 373-4772 f (:lOa) 373-4791 www.sgs.com/minerals
MemberofSGS Group Thisdocument is issued by the Company under its General Conditions of Service accessible at http://'NWW.sgs.com/terms_and_conditions.htm Attention is drawnto the limitation of liability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that In(onnation contained hereon reflects the Company's findings atthe time ofits intervention only and within the limits ofClient's instructions, ifany. The Company'ssole responsibility isto its client and this documentdoes not exonerate partiesto a transaction from exercising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsification ofthe content orappearance ofthis document is unlawful and offenders may be prosecuted tothe fullest extentofthe law.

### Analysis Report 

# SG$

August 

### 30, 2010

The Avogadro Group, LLC 2825 Verne Roberts Circle Antioch, CA 94509 USA



### Client Sample 10: Date Received: 

### Matrix:

Location: 

### Project Name/# :



### % Moisture, Total

Tests Trace Analysis Basis Antimony Beryllium Cadmium Cobalt Chromium Manganese Nickel Lead Arsenic Selenium Mercury, Dry Sample Notes: 2-fuel-1 

### 04/08/2010 Coal

Coal-Fired Boilers 1 and 2 TransAlta Centralia Generation 

### Date Sampled: Project 

### Name/# : Sample 10: Sample Type: Time Sampled: Page 1 of 1



### 3/23/2010 10072.2p D/F OHAP -1" Moist 2045



### SGS Minerals Sample 10: 

### 072-45044-003-01

As Received [ASTM D 3302] 26.73

Result Unit Method Dry Coal <1 ug/g ASTM D 6357 0.4 ug/g ASTM D 6357 <0.4 ug/g ASTM D 6357 2 ug/g ASTM D 6357 15 ug/g ASTM D 6357 90 ug/g ASTM D 6357 

### 12 ug/g ASTM D 6357 4 ug/g ASTM D6357 2 ug/g ASTM D 6357 <1 ug/g SW7740 0.11 ug/g ASTM D 6722

Added analysis per client request.

Method Reference(s): "Test Methods for Evaluating Solid Waste", U.S. Environmental Protection Agency, SW-846, 3rd Edition November, 1986

## ~~ ---- Somer Rodriguez, Denver Laboratory SGS North America Inc. Minerals Services

### DjviSion~"'" 

# "0

4665 Paris St Suite 8-200 Denver CO 80239 t (303) 373-4772 f (303) 373-4791 www.sgs.com/mlnerals

Member ofSGS Group This document is issued by the Company under its General Conditions of Service accessible at http://www.sgs.com/terms_and_conditions.htm Attention is drawn to the limitation of liability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that information contained hereon reflects the Company's findings at the time of its intervention only and within the limits of Client's instructions, ifany. The Company's sole responsibility is to its client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. Any unauthorized alteration, forgery or falsification ofthe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

### Analysis Report

April 23, 2010

"rhe Avogadro 

### Group, LLC 2825 Verne Roberts Circle Antioch, CA 94509 USA

ClientSample 10: 

### Date Received: 

### Matrix; Net Sample

### Weight: 

### LocatIon: Project Name/# :



### % Moisture, Total 

### % Ash 

### %Volatile Matter 

### % 

### Fixed Carbon Gross CalorificValue (Slutlb) 

### % Sulfur 

### %Carbon 

### % 

### Hydrogen % Nitrogen %

### Oxygen (Calc) Tests 

### Pounds ofAsh/mm Btu 

### Pounds ofSulfur/mm Btu Pounds of 

### S02/mm Btu 3-fuel-2 Date Sampled: 

### 04/0812010 Project 

### Namel# : Coal Sample 

### 10: 

### 4316.80 9 Sample

### Type: Coal-Fired 

### Soilers 1and 2 Time Sampled: 

### TransAlta Centralia Generation

SGS Minerals Sample 10: 072-45044-006

[ASTM 0 

### 3302] [ASTM D 

### 3174/5142) [ASTM 

## o 5142J [ASTM 

### 0 3172] [ASTM 

### 0 5865J [ASTM 

### 0 4239J [ASTM 

### 0 5373] [ASTM D

### 5373] [ASTM D 5373J [ASTM 

### 0 3176) As Received 

### 26.98 13.17 28.14 

### 31.71 7796 

### 0.31 

### 44.63

3.17 0.62 11.12 Result Unit

16.89 Ib 0.40 Ib 

### 0.79 Ib Page 1 of2



### 3/24/2010 

### 10072.2p Acid Gas and metallic HAP 

### -1" Moist 530

### ~ 

### 18.03 38.54 47.02 43.43 

### 52.98 10676 

### 13023

0.42 61.12

4.34 0.86 

### 15.23 Method

Run 3 Coal Samples from Units 1 (BW21) and 2 (BW22) were cross-labelled at time ofcollection. All Run 3-fuel-l sheets should be labelled 3-fuel-2. All Run 3-fuel-2 sheets should be labelled 3­ fuel-l. Sample cross-labelling was suspected due to ash content ofeach sample. Cross-labelling confirmed by analysis ofcorrectly labelled sister samples retained by plant for daily analysis.

## ~fZ...16.z 

# -- Somer Rodriguez, Denver Laboratory 

### sas North America Inc. Minerals ServiCes Division
.........,

# 0
466S Paris 51 Suite 6·200 Denver 

### co 80239 t (303) 373·4772 f (3()3) 373·4791 WWW.sgs.comiminersIS

Member of SGS Group This document is issued by the Company underits General Conditions ofService accessible at http://www.sgs.com/terms_and3Qndllions.htm Attention is drawn to the limitation of**~ab!lily.** indemnillcatlon and jurisdiction issues defined therln.
Any holderofthis document is aovlsed that information contained hereon reflects the Compeny's findings at the time ofIts intervention onlyand within the limits ofCllcnl'$lnstructions, ifany. The Company's sole responsibility is 10 its cHent and this documentdoes not exonerate parties 10 atransaction from exercising ail their rights and obligations undertlla transaction documents. Any unauthorized alteration, forgery orfalsification ofIhe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fullest exlent ofthe law.

### Analysis Report

April23,2010 Page 2of2

The Avogadro Group, LLC 

### 2825 Verne Roberts Circle Antioch, CA 

### 94509 USA

Client Sample 10: 3-fuel-2 DateSampled: 

### 3/24/2010 Date Received: 04/08/2010 ProJect Namef# : 

### 10072.2p Matrix! 

### Coal Sample 

### 10: Acid Gas and metallic HAP NetSample Weight: 

### 4316.80 9 SampleType: -1" Moist 

### Location: Coal·Fired Boilers 

### 1and 2 Time Sampled: 

### 530 Project Name/# : 

### TransAlta Centralia Generation

SGS Minerals Sample ID: 072-45044-006 Tests Result Unit Method Trace Analysis BasIs Dry 

### Coal Antimony 

### <2 

### ugfg ASTM 06357 Beryllium 

### 0.4 ug/g ASTM 

### D6357 Cadmium <0.4 

### ug!g ASTM 06357 

### Cobalt 

### 2 ug/g ASTM 

### D6357 Chromium 

### 16 

### ug/g ASTM D6357 

### Manganese 

### 119 uglg ASH/I06357 Nickel 

### 14 

### ug/g ASTM 06357 

### Lead <4 ug/g ASTM 06357 

### Chlorine, Dry 57 ug/g ASTM 06721 Arsenic 

### 3 ug/g ASTM 06357 Selenium 

### <1 ug/g SW7740 Mercury, Dry 

### 0.10 uglg ASTM 06722
Method 

### Reference(s): 

### 'Test Methods for Evaluating Solid 

### Waste", U.S. 

### Environmental Protection Agency, SW-846, 

### 3rd Edition November, 1986

Run 3 Coal Samples from Units 1 (BW21) and 2 (BW22) were cross-labelled at time of collection. All Run 3-fuel-l sheets should be labelled 3- fuel-2. All Run 3-fuel-2 sheets should be labelled 3- fuel-1. Sample cross-labelling was suspected dueto ash content ofeach sample. Cross-labelling confirmed by analysis ofcorrectly labelled sister samples retained by plantfor daily analysis.

## ~t2Ah 

# ...-- Somer Rodriguez, Denver Laboratory MineralS

### Ser~cos Oivislon

- --..,

# 0

4665 Pari. SI**Sujl~** B-200 Oenver CO 8a239 t (303) 373.-4772 f (303) 373-4791 www.sgs.eomlmlnerals SGS North America Inc.

Memberof SClS Group This document is Issued by the Company under its General Conditions ofService accessible at**http:l~_sgs** comlterms_and_condilions.htm Attention is drawn to the limitation ofliability. indemnification andJurisdiction issues defined therin.
Any holderofthis dOCl.lment is advised that information contained hereon reflects the Company's findings atthe time of its intervention onlyandwithin the limits ofCiient's instructions, Ifany. Tha Company's sole responsibility Is to Its client and this document does not exonerate parties (0 atraneaction f[l)m exercising all their rights and obligations underthe transaction documents. Any unlluthorized alteration,forgery or falsification ofthe conlent orappearance ofthis document is unlawful and offenders may be prosecuted to the fullest exlent oftheaw.

### Analysis Report

# SG~ August 

### 23, 2010 Page 1of 1

The

### Avogadro Group, LLC 2825 Verne Roberts Circle Antioch. 

### CA 94509 USA

Client Sample/D: Date Received: 

### Matrix:



### Location: Project Name/# : 3-fuel-2 04/08/2010 Coal

Coal-Fired Boilers 1 and 2 TransAlta Centralia Generation Date Sampled: Project Namel# : Sample ID: Sample Type: Time Sampled: 

### 3/24/2010 10072.2p Acid Gas and metallic HAP -1"Molst 

### 530

SGS Minerals Sample ID: 072-45044·006-01

% MOisture, Total 

### [ASTM D3302] As Received 

### 26.49

Tests Fluorine. 

### Dry Sample Notes: Result 90 

### Unit ug/g 

### Method 

### ASTM D 3761

Added 

### analysis per client request.



### Run 

### 3 Coal Samples from Units 

### 1 (BW21) and 2 (BW22) were cross-labelled at time of collection. All Run 3-fuel-l sheets should be labelled 3- fuel-2. All Run 3-fuel-2 sheets should be labelled 3- fuel-I. Sample cross-labelling was suspected due to ash content ofeach sample. Cross-labelling confirmed by lanalysis of correctly labelled sister samples retained by plant for daily analysis. I

SGS North America Inc. Minerals Sllrvices Dlvlsien

# ~fZ..-(h --­

-..r

# -0 Somer Rodriguez, Denver Laboratory 

# .r(**~**
4665 Paris 5t Sullo 8-2110 Denvel CO 80239 t (303) 373-4772 f (303)313·4791**www.sgs.comlminer~ls** MemberofSGS Group This dooument is issued by the Company under Its General Conditions of Service accessible Ol! http://wy;w.sgs.com/terms_snd_conditlons.htm Attention is drawn to the limitation of Ilabllity. indemnification and Jurlsdlctlon Issues defined therln.
Any holderof this document is advised that Informatlon contained hereon refieats the Ccmpany's findings atthe time of its interventlon only and within the limits ofClient's instructions. Ifany. The Company'a sole responsibility Is to Its client end this document does not exonerale parties to a transBclion from exeroising all their rights and obligations underUle transaction documents. Any unauthorized ",Iteration, forgery orfalsification ofthe conterlt or appearance ofthis document Is unlawful and offenders may be prosecuted to the fullest extentofthe law.

### Analysis Report 

# SG$

April 23, 2010

The Avogadro Group, LLC 

### 2825 Verne Roberts Circle Antioch, CA 

### 94509 USA



### Client Sample 10: Date Received: Matrix: Net Sample Weight: Location: Project 

### Namef# :



### % Moisture, Total 

### %Ash % Volatile Matter 

### % Fixed Carbon Gross Calorific Value (Btu/lb) 

### % Sulfur 

### % Carbon 

### % Hydrogen % Nitrogen 

### % Oxygen (Calc) 

### Tests Pounds ofAsh/mm Btu Pounds ofSulfur/mm Btu Pounds of

### S02/mm Btu 4-fuel-1 04/08/2010 Coal 4754.00 

### g Coal-Fired Boilers 

### 1 and 

### 2 TransAlta Centralia Generation 

### Date Sampled: Project 

### Namef# : Sample 10:
Sample Type: Time Sampled:

SGS Minerals Sample ID: 072-45044-007

[ASTM D 3302] [ASTM D 3174/5142] [ASTM D 

### 5142] [ASTM D 3172] [ASTM D 5865] [ASTM D 4239] [ASTM D 5373] [ASTM D 5373J [ASTM D 5373J [ASTNI D 3176]

Minerals Services Division SGS North America Inc. 

### As Received 

### 25.84 12.53 

### 28.70 32.93 

### 8024 0.34 45.97

3.29 

### 0.65 11.38 Result Unit



### 15.62 Ib 0.42 Ib 0.84 Ib

## ~~ ----­

. - ---."

# 0'

. 4665 Paris St Suite 8-200 Denver CO 80239 Page 1 of2

3/24/2010 10072.2p Acid Gas, metallic HAP and OIF HAP 

### -1" Moist 

### 1800

Qry

16.90 38.70 

### 46.57 44.40 53.43 

### 10819 13019



### 0.45 

### 61.98



### 4.44 0.87 15.36 

### Method

Somer Rodriguez, Denver Laboratory

t (303) 373-4772 f (303) 373-4791 www.sgs.com/minerals

MemberofSGS Group This document is issued by the Company under its General Conditions of Service accessible at http://www.sgs.com/terms_and_conditions.htm Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therin.
Any holder ofthis document is advised that information contained hereon reflects the Company's findings atthe time of Its Intervention only and within the limits of Client's instructions, Ifany. The Company's sole responsibility is to its client and this documentdoes not exonerate parties to a transaction from exercising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsification ofthe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fulles! extent ofthe law.

### Analysis Report 

# SG$

April 23, 2010 Page 2 of2

The Avogadro Group, LLC 2825 Verne Roberts Circle Antioch, CA 94509 USA

ClientSample 10: 

### 4-fuel-1 Date 

### Sampled: 

### 3/24/2010 Date Received: 

### 04/08/2010 Project Namel# : 

### 10072.2p Matrix: 

### Coal Sample 

### 10: 

### Acid Gas, metalHc HAP and NetSampleWeight: 

### 4754.00 

### 9 O/F HAP Location: 

### Coal-Fired Boilers 1and 2 Sample Type: -1" 

### Moist Project 

### Name/# : 

### TransAlta Centralia Generation Time Sampled : 

### 1800

SGS Minerals Sample 

### 10: 

### 072-45044·007 Tests Result Unit Method 

### Trace Analysis Basis Ory Coal Antimony 

### <2 ug/g 

### ASTM 06357 Beryllium 

### 0.4 ug/g 

### ASTM 06357 Cadmium <0.4 u9/9 

### ASTM 

### 06357 Cobalt 

### 2 ug/g ASTM 06357 Chromium 16 

### ug/g ASTM 

### 06357 Manganese 

### 115 ug/g 

### ASTM 

### 06357 Nickel 

### 13 ug/g ASTM 

### 06357 Lead <4 

### ug/g ASTM 06357 Chlorine, Ory 

### 53 ug/g ASTM 

### 06721 Fluorine, Ory 86 ugfg ASTM 

### 0 

### 3761 Arsenic 3 

### ug/g ASTM 06357 Selenium <1 

### ug/g SW7740 Mercury, Ory 

### 0.06 Ug/g ASTM D6722 Method Reference(s): "Test Methods for Evaluating Solid Waste", U.S. Environmental Protection Agency, SW-846, 3rd 

### Edition November, 1986

# ~~ -- Somer Rodriguez, Denver Laboratory SGS N()rth America Inc. Minerals Services Division -....:r

# 0

4665 Paris StSuite B-200 Denver CO 80239 t (303) 373-4772 f (303) 373-4791 www.sgs.comlminerals

Member ofSGS Group This document is issued bythe Company under its General Conditions ofService accessible at http://www.sgs.comltenns_and_conditions.htm Attention is drawn to the limitation ofliability, indemnification andjurisdiction issues defined therin.
Any holderofthisdocument is advised that information contained hereon reflects the Company'sfindings atthe time ofits intervention only and within the limits ofClient's instructions, ifany. The Company's sole responsibility is to its client and this documentdoes notexonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. Any unauthorized alteration, forgery orfalsification ofthe conlent or appearance ofthis document is unlawful and offenders may be prosecuted tothe fullest extentofthe law,

### Analysis Report 

# SG$

April 

### 23, 2010

The Avogadro Group, 

### LlC 

### 2825 Verne 

### Roberts Circle 

### Antioch, CA 94509 USA

ClientSample 10: 

### 5-fuel-1 Date Sampled: Date Received: 04/08/2010 

### Project Name/# : Matrix: 

### Coal Sample 10: NetSample

### Weight: 

### 4477.00 9 Location: 

### Coal-Fired Boilers 1and 2 Sample

### Type; Project Namel# : 

### TransAlta Centralia Generation Time Sampled:

SGS Minerals Sample 10: 

### 072-45044-009

As Received 

### % Moisture, Total [ASTM 

### 0 3302] 

### 26.32 %Ash [ASTM 

### 0317415142J 11.18 % 

### Volatile Matter [ASTM 

# o 5142J 29.12 

### % Fixed Carbon [ASTM 

### D3172J 33.38 Gross Calorific Value (Btullb) [ASTM 

### 0 5865J 

### 8142 % Sulfur [ASTM 

### 0 4239J 

### 0.32 

### %Carbon [ASTM 

### 0 5373J 46.91 

### % Hydrogen [ASTM 

### 0 5373] 3.35 % 

### Nitrogen [ASTM 

### D5373] 

### 0.65 % 

### Oxygen (Calc) [ASTM 0 3176] 

### 11.27 Tests Result 

### Unit Pounds 

### ofAsh/mm Btu 

### 13.73 Ib 

### Pounds ofSulfur/mm Btu OAO Ib 

### Pounds ofS02lmm.Btu 0.79 Ib 

### Page 1of2

3/25/2010 

### 10072.2p Acid Gas, metallic HAP and OfF HAP 

### -1" Moist 

## 600

Q!y

15.17 39.53 46.60 45.30 

### 53AO 

### 11051 

### 13027

OA4 63.67

4.55 0.88 15.29 Method

SGS North America fnc. Minerais Sarllices Division

## ~~ --­

-....

# -0 Somer Rodriguez, Denver Laboratory

4665 Paris SI Suite B·200 Denver CO 80239 t (303) 373·4772 f (303) 373·4791 www.sgs.com/minerals

MemberofSGS Group This document is issued by the Company under its General Conditions ofService accessible at httpJlwww.sgs.com/terms_and_conditions.htm Attention is drawn to the limitation ofliability, indemnification and jurisdiction Issues defined therin.
Any holder of this document is advised that information contained hereon reflects the Company's findings at the time of its intervention only and within the limits ofClient's instructions, ifany. The Company's sole responsibility is to its client and this document does not exonerate parties to atransaction from exercising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalSification ofthe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

### Analysis Report

# SG~ April 23, 2010

The Avogadro Group, LLC 2825 Verne Roberts Circle Antioch, CA 94509 USA

ClientSample ID: Date Received: Matrix: NetSample Weight: Location: 

### Project Name/# :



### TraceAnalysis Basis Antimony Beryllium Cadmium Cobalt 

### Chromium Manganese Nickel Lead Chlorine, Dry Fluorine, Dry Arsenic Selenium Mercury, Dry
Method Reference(s): 5-fuel-1 Date Sampled : 04/08/2010 

### Project Name/# : 

### Coal Sample ID: 

### 4477.00 9 Coal-Fired Boilers 1and 2 SampleType: 

### TransAlta Centralia Generation Time Sampled:

SGS Minerals Sample ID: 072-45044-009 Result Unit 

### Dry Coal <2 ug/g 0.4 

### ug/g 

### <0.4 ug!g 

### 2 ug/g 

### 13 ug/g 

### 100 ug/g

10 

### ug/g <4 ug/g 

### 53 ug/g 98 ug/g



### 3 ug/g 

### <1 

### ug/g 

### 0.07 ug/g Page 2 of2

3/25/2010 

### 10072.2p 

### Acid Gas, metallic HAP and OfF 

### HAP -1" 

### Moist 

### 600

Method

ASTM 

### 06357 ASTM 

### 06357 ASTM 

### 06357 ASTM 

### 06357 ASTM 

### 06357 ASTM 

### 06357 ASTM 06357 ASTM 

### 06357 ASTM 06721 ASTM 

### 03761 ASTM 06357 SW7740 

### ASTM 06722



### "Test Methods for 

### Evaluating Solid Waste", U.S. 

### Environmental Protection Agency, SW-846, 3rd 

### Edition November, 1986

## ~f2-(J~ --.Somer Rodriguez, Denver Laboratory SGS North Amerlca Inc. Minerals Services Division

............

# 0

4665 Paris 5tSuite 8-200 Denver CO SO:!39 t (303) 373-4772 t (303) 373-4791 WWW.sgs.com/minerals

M&mber 01 5GS Group This document is issued by the Company under its General Conditions ofService accessible at http://lWJW.sgs.com/terms_and_conditions.hlm Attention is drawn to the limitation of liability, indemnification andjurisdiction issuesdefined therin.
Any holder ofthis document is advised that information contained hereon reflects the Company's findings atthe time of its intervention onlyandwithin the limits OfClient's instructions, ifany. The Company's sale responsibility is to its client and this document does not exonerate partiesto a transaction from exercising aU theirrights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsification ofthe content orappearance ofthis document is unlawful and offenders may be prosecuted tothefullest extentofthe law.

### Analysis Report

April 23, 

### 2010

The Avogadro Group, LLC 

### 2825 Verne Roberts Circle Antioch, CA 

### 94509 USA



### Client Sample 10: 6-fuel-1 

### Date Sampled: Date Received: 

### 04/08/2010 Project 

### Name/# : Matrix: Coal 

### Sample ID: Net SampleWeight: 4377.20 

### g Location: Coal-Fired Boilers 

### 1and 

### 2 Sample Type: Project 

### Name/# : TransAlta Centralia Generation 

### Time Sampled:

SGS Minerals Sample ID: 

### 072-45044-010

As Received 

### % Moisture, Total [ASTM 

### D 3302] 27.18 

### % Ash (ASTM 

### D 

### 3174/51421 

### 11.93 % Volatile Matter [ASTM D 5142] 28.41 

### % Fixed Carbon [ASTM 

### D 3172] 32.48 Gross Calorific Value (Btu/lb) [ASTM D 5865] 

### 7921 

### % Sulfur [ASTM 

### D 4239] 0.31 

### % Carbon [ASTM 

### D 5373] 45.30 % Hydrogen [ASTM D 5373] 3.25 

### % Nitrogen [ASTM D 5373] 0.62 % Oxygen (Calc) [ASTM 03176] 

### 11.41 Tests Result Unit Pounds ofAsh/mm Btu 

### 15.07 Ib Pounds ofSulfur/mm Btu 0.39 Ib Pounds of 

### S02/mm Btu 0.77 Ib Page 1of2

3/25/2010 

### 10072.2p Acid Gas, metallic HAP and OIF 

### HAP 

### -1" Moist 1800



### Qry



### 16.39 39.02 46.67 

### 44.59 53.33 10878 13010



### 0.42 62.21

4.47 0.86 

### 15.65 Method

## ~~ Somer Rodriguez, Denver Laboratory Minerals Services Division

.. .-...r

# 0

4665 Paris $1 Suite B-200 Denver CO 80239 t (303) 373-4772 f (3(}3) 373-4791 www.sgs.com/mlnerals SGS North America Inc.

Member of SGS Group This document is issued by the Company under its General Conditions ofService accessible at http://www.sgs.com/terms_and_conditions.htm Attention is drawn to the limitation ofliability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that information contained hereon reflects the Company's findings atthe time ofits intervention only and within the limits ofClient's instructions, ifany. The Company's sole responsibility is to its client and this documentdoes not exonerate parties to a transaction from exercising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsification ofthe content or appearance ofthis document is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

### Analysis Report 

# SG$

April 23, 2010 Page 

### 2 of2

The Avogadro Group, LLC 2825Verne Roberts Circle Antioch, CA 94509 

### USA



### Client Sample 10: 6-fuel-1 

### Date Sampled : 3/25/2010 

### Date Received: 04/08/2010 

### Project Name/# : 10072.2p Matrix: Coal 

### Sample 10: Acid Gas, metallic HAP and 

### NetSampleWeight: 4377.20 9 O/F HAP 

### Location: Coal-Fired Boilers 1 and 2 

### Sample Type: -1" Moist 

### Project Name/# : 

### TransAlta Centralia Generation 

### Time Sampled ; 

### 1800

SGS Minerals Sample 10: 

### 07245044-010 Result Unit 

### Method TraceAnalysis Basis Ory Coal Antimony <2 ug/g ASTM 

### 06357 Beryllium 0.4 ug/g ASTM 

### 06357 Cadmium <0.4 ug/g ASTM 

### 06357 Cobalt 2 ug/g ASTM 

### 06357 Chromium 16 ug/g ASTM 

### 06357 Manganese 

### 110 ug/g ASTM D

### 6357 Nickel 12 

### ug/g ASTM D

### 6357 Lead <4 ug/g ASTM 

### 06357 Chlorine, Ory 

### 55 ug/g ASTM 

### 06721 Fluorine, Dry 

### 95 ug/g ASTM 

### 03761 Arsenic 

### 3 ug/g ASTM 

### 06357 Selenium <1 ug/g 

### SW7740 Mercury,Ory 

### 0.09 ug/g ASTM 

### 06722
Method Reference(s): "Test Methodsfor Evaluating Solid Waste", U.S. Environmental Protection Agency, SW-846, 3rd Edition November, 1986

SGS North America Inc. Minerals Services Division

## ~~ ..--­

..........

# ·0 Somer Rodriguez, Denver Laboratory

4665 Paris SISulle B·ZOO Denver CO 60239 t (303) 373·4772 f (303) 373·4791 www.sgs.com/minerals

Memberof SGS Group This document is issued by the Company under its General Conditions ofService accessible at http://www.sgs.com/terms_and_conditions.htm Attention is drawn to the limitation ofliability, indemnification andjurisdiction issues defined therin.
Any holderofthis document is advised that information contained hereon reflects the Company's findings atthetime ofits intervention only and within the limits ofClient's instructions, ifany. The Company's sole responsibility is to Its clientandthis document does notexonerate parties to a transaction from exercising all their rights and obligations underthe transaction documents. Any unauthorized alteration, forgery orfalsification ofthe contenl or appearance ofthis document is unlawful and offenders maybe prosecuted to the fullest extentofthe law.