# Final Report

Mercury Emissions Evaluation Program for Systems 15A and 16A Barrick Goldstrike Mines Inc. Eureka County, Nevada

Prepared for:



### Barrick Goldstrike Mines Inc. P.O. Box 29 Elko, Nevada 89803

Prepared by:



### TRC Companies, Inc. 6672 Boulder Highway, Suite 5 Las Vegas, Nevada 89122



# November 2007TRC Project No. 151555

November 2007



### Final Report

Mercury Emissions Evaluation Program for Systems 15A and 16A Barrick Goldstrike Mines Inc. Eureka County, Nevada

Prepared for

Barrick Goldsrike Mines Inc. P.O. Box 29 Elko, Nevada 89803 (775) 778-8265

Prepared by

TRC Companies, Inc. 6672 Boulder Highway, Suite 5 Las Vegas, Nevada 89122 (702) 437-5800

DISCLAIMER

This document is intended for use solely by Barrick Goldstrike Mines Inc. (Barrick) for the specific purposes described in the contractual documents between TRC Environmental Corporation (TRC) and Barrick. All professional services performed and reports generated by TRC have been prepared for Barrick's purposes as described in the contract. The information, statements and conclusions contained in the document have be en prepared in accordance with the work statement and contract terms and conditions. The document ma y be subject to differing interpretations and/or may be misinterpreted by third persons or enti ties who were not involved in the invest igative or consultation process. TRC Environmental Corporation therefore expr essly disclaims any liability to persons other than Barrick who may use or rely upon this document in any way or for any purpose.TABLE OF CONTENTS

Section Page

L2007-529 ii 1.0 INTRODUCTION............................................................................................................. 1

1.1 OVERVIEW ................................................................................................................... 1 1.2 SCOPE OF WORK......................................................................................................... 1

2.0 SUMMARY OF RESULTS ............................................................................................. 3

2.1 TEST PROGRAM OBJECTIVES.................................................................................. 3 2.2 FIELD TEST CHANGE S AND PROBLEMS............................................................... 3 2.3 PRESENTATION OF RESULTS .................................................................................. 3

2.3.1 System 15................................................................................................................ .... 3 2.3.2 System 16................................................................................................................ .... 3

3.0 PROCESS DESCRIPTION ............................................................................................. 5

3.1 INTRODUCTION .......................................................................................................... 5 3.2 SAMPLING LOCATIONS ............................................................................................ 5

4.0 SAMPLING PROCEDURES .......................................................................................... 6

4.1 OVERVIEW ................................................................................................................... 6 4.2 FIELD PROGRAM DESCRIPTION ............................................................................. 6 4.3 PRESAMPLING ACTIVITIES...................................................................................... 7

4.3.1 Equipment Calibration................................................................................................ 7 4.3.2 Glassware Preparation ................................................................................................ 8 4.3.3 Sample Media Preparation.......................................................................................... 8 4.4 ONSITE SAMPLING ACTIVITIES.............................................................................. 8

4.4.1 EPA Methods 1 and 2 for Velocity Measurements and Cyclonic Flow..................... 9 4.4.2 EPA Method 3A for O 2 and CO 2 Measurements........................................................ 9 4.4.3 EPA Method 4 for Moisture Determination ............................................................. 10 4.4.4 EPA Method 29 for Mercury .................................................................................... 10 4.5 PROCESS MONITORING .......................................................................................... 12

5.0 ANALYTICAL PROCEDURES AND CALCULATIONS ........................................ 13

5.1 ANALYTICAL PROCEDURES.................................................................................. 13 5.2 CALCULATIONS........................................................................................................ 13

5.2.1 Flow Rates and Isokinetics ....................................................................................... 13 5.2.2 Pounds Per Hour - Particle Bound, Oxidized, Elemental and Total Mercury Concentrations ................................................................................................................. ...... 16

6.0 QUALITY ASSURANCE .............................................................................................. 17

6.1 OVERVIEW ................................................................................................................. 17 6.2 FIELD QUALITY CONTROL SUMMARY............................................................... 17

6.2.1 Calibration Procedures.............................................................................................. 17 6.2.2 Equipment Leak Checks ........................................................................................... 17 6.2.3 Cyclonic Flow Check................................................................................................ 18 6.3 DATA REDUCTION, VALIDAT ION, AND REPORTING ...................................... 18TABLE OF CONTENTS

Section Page

L2007-529 iii 6.3.1 Field Data Reduction ................................................................................................ 18 6.3.2 Data Validation ......................................................................................................... 1 8 6.3.3 Data Reporting.......................................................................................................... 1 9

Appendices

A Field Sampling Data Sheets B Field Reduced Data C Facility Process Data D Laboratory Analytical Data E Equipment Calibration Forms F Test Protocol and Correspondence

TABLES

Number Page

1-1 Mercury Emissions Evaluati on Test Program Overview.................................................... 2 2-1 Summary of Method 29 Mercury Test Results for Systems 15A and 16A ........................ 4L2007-529 CERTIFICATIONS

Certification by Source Testing Team Member:

I certify that the sampling and analytical pro cedures, and the data pr esented in this report are authentic and accurate.

____________________________________ Timothy Senger Project Manager, Air Measurements TRC Environmental Corporation

Certification by Source Testing Company Reviewer:

I certify that all testing details a nd conclusions are accurate and valid.

_____________________________________ Sean M. Morris Manager, Air Measurements TRC Environmental CorporationL2007-529 1 1.0 INTRODUCTION

1.1 OVERVIEW

Barrick Goldstrike Mines Inc. (Barrick) perf ormed mercury (Hg) emissions testing on the Roaster Mill Circuit and associated support sy stems (Systems 15A and 16A) at the Barrick facility in Carlin, Eureka County, Nevada in support of the Nevada Department of Environmental Protection (NDEP), Neva da Mercury Control Program (NMCP).

TRC Companies, Inc. (TRC) was retained by Barr ick to provide sampling and analytical support for the NMCP. TRC supported and managed the test program from the Las Vegas, Nevada office. TRC prepared and received approval fo r the test protocol to satisfy the testing requirements for the Mercury Emissions Eval uation Test Program required by NDEP. The purpose of the testing for the Roaster and associ ated support systems was to test Systems 15A

and 16A – Roaster Mill Circui t – Mills 1 and 2 Air Preheater and Dry Grinding Process Baghouse stacks under steady-state conditions, to determine Hg emissions.

Sampling and analysis procedures described in this document we re conducted using procedures deemed acceptable by the NDEP and the United States Environmental Protection Agency (USEPA). TRC was responsible for the collection and analysis of all flue gas samples.

1.2 SCOPE OF WORK

The compliance program consisted of a series of three 2-hour test runs at the outlet of each location utilizing EPA Test Method 29. Testi ng was conducted while th e units were operating under steady-state conditions. The concentrations of oxygen (O 2 ), carbon dioxide (CO 2 ), Hg, velocity and moisture were determined for each test run at each outlet location.

Triplicate test runs were conducted for all parame ters. The following presents a summary of the test parameters, test methods and run times.L2007-529 2 Table 1-1. Mercury Emissions Evaluation Test Program Overview

Source Test Parameter Test Method Run Time (minutes) Systems 15A and 16A Dry Grinding Processes Flows and Moisture EPA Methods 1 - 4

O 2 / CO 2 EPA Methods 3/3A 60

Mercury EPA Method 29 120

The required measurement parameters and test me thods used to accomplish these test objectives

were as follows: • 40 CFR Part 60, Appendix A, EPA Methods

· Methods 1 & 2 - Velocity and Flow Rate · Method 3A - Oxygen and Carbon Dioxide · Method 4 - Moisture · Method 29 - MercuryL2007-529 3 2.0 SUMMARY OF RESULTS

2.1 TEST PROGRAM OBJECTIVES

The purpose of the test program was to conduct triplicate tests at each location described in Section 1.2 of the report, to determine mercury emissions in support of the State of Nevada’s Mercury Control Program.

2.2 FIELD TEST CH ANGES AND PROBLEMS

During test run #1 of System 16A, on August 4, 2007, TRC paused sampling for twenty-seven minutes (0905-0932) to check the sampling trains.

No field test changes were required during the EPA Method 29 sampling program.

2.3 PRESENTATION OF RESULTS

2.3.1 System 15A

Testing of System 15A was conducted on August 3, 2007. Triplicate test runs were conducted for mercury emissions in accordance with EP A Method 29. A summary of the EPA Method 29 test results is presen ted in Table 2-1.

2.3.2 System 16A

Testing of System 16A was conducted on August 4, 2007. Triplicate test runs were conducted for mercury emissions in accordance with EP A Method 29. A summary of the EPA Method 29 test results is pres ented in Table 2-1.System 15A Run 1 Run 2 Run 3 Average August 3, 2007 Start Time 9:00 11:50 14:30 Units Stop Time 11:07 13:57 16:38

Hg (Particle Bound) ug 181.0 69.0 34.1 94.7 ug/dscf 2.231 0.840 0.422 1.164

lb/hr 0.035 0.013 0.007 0.019

Hg (Gaseous) ug 1861 135 73 690 ug/dscf 22.938 1.647 0.900 8.495

lb/hr 0.365 0.026 0.014 0.135

Total Mercury ug 2042 204 107 784 ug/dscf 25.17 2.49 1.32 9.66

lb/hr 0.400 0.040 0.021 0.154

System 16A Run 1 Run 2 Run 3 Average August 4, 2007 Start Time 8:30 11:42 14:25 Units Stop Time 11:08 13:48 16:31

Hg (Particle Bound) ug 12.5 19.9 13.0 15.1 ug/dscf 0.170 0.287 0.187 0.215

lb/hr 0.002 0.004 0.003 0.003

Hg (Gaseous) ug 45 19 43 36 ug/dscf 0.611 0.274 0.613 0.499

lb/hr 0.009 0.004 0.008 0.007

Total Mercury ug 57 39 56 51 ug/dscf 0.78 0.56 0.80 0.71

lb/hr 0.011 0.008 0.011 0.010 Table 2-1 Summary of Method 29 Mercury Test Results

Systems 15A and 16A Barrick Goldstrike Mines

4L2007-529 5 3.0 PROCESS DESCRIPTION

3.1 INTRODUCTION

Barrick Goldstrike Mines Inc. operates a gold producing mine on property located in Eureka County, Nevada. There are pro cessing plants located on the pr operty which separate the gold

from the recovered ore. Part of this mining process utilizes Systems 15A and 16A.

3.2 SAMPLING LOCATIONS

System 15A is equipped with one exhaust stack. Emissions from the Roaster Mill Circuit, Mill #1 Pre-heater and Dry Grinding process will each be controlled by two (2) quad-chamber product recovery baghouses (D C-204.1 and DC-204.2) and one pick-up baghouse (DC-205).

System 16A is also equipped with one exhaust st ack. Emissions from the Roaster Mill Circuit, Mill #2 Pre-heater and Dry Grinding process wi ll each be controlled by two (2) quad-chamber product recovery baghouses (D C-206.1 and DC-206.2) and one pick-up baghouse (DC-207).

The procedures specified by EPA Method 1, " Sample and Velocity Traverses for Stationary

Sources ", were followed to determine the number and location of traverse points to be used for the stratification testing and velo city traverses. The number of straight run stack diameters (equivalent diameters) upstream and downstream from the sample ports was used to determine the minimum number of traverse points required.

Additional detail for each system including di ameters upstream and downstream, internal diameters of each exhaust stream, and sampling point locations and distances are included in Appendix A.L2007-529 6 4.0 SAMPLING PROCEDURES

4.1 OVERVIEW

This section describes the procedures that TRC followed during the field sampling program. Throughout the program TRC followed EPA Me thods 40 CFR Part 60 Appendix A sampling procedures for mercury emissions sampling.

. The remainder of this section is divided into several subsections: Field Program Description; Pre-sampling Activities; and Onsite Sampling Activities.

4.2 FIELD PROGRAM DESCRIPTION

The field sampling was conducted by TRC over a th ree-day period. On the first day equipment was set up and preliminary measurements were made. On the following days, TRC collected samples for the parameters listed below on the permitted units:

O 2 , CO 2 Velocity and Percent Moisture Mercury

TRC personnel used the following EPA Methods as listed in 40 CFR Part 60, Appendix A to determine mercury emissions:

• EPA Method 1 Sample Velocity Tr averse for Stationary Sources

• EPA Method 2 Determination of Stack Gas Velocity and Volumetric Flow Rate (Type S pitot tube)

• EPA Method 3A Determination of Oxygen and Carbon Dioxide Concentrations in Emissions from Stationary Sources (Instrumental Analyzer Procedure)

• EPA Method 4 Determination of Moisture Content in Stack Gases

• EPA Method 29 Metals Emissions from Stationary Sources (Hg)L2007-529 7 4.3 PRESAMPLING ACTIVITIES

Presampling activities included eq uipment calibration, precleaning of the sample train glassware,

and other miscellaneous tasks. Each of these activities are described or referenced in the following subsections. Other pres ampling activities included team meetings, equipment packing,

and finalization of all details l eading up to the coordi nated initiation of the sampling program.

4.3.1 Equipment Calibration

TRC follows an orderly program of positive acti ons to prevent the failure of equipment or instruments during use. This preventative main tenance and careful calibration helps to ensure accurate measurements from field and laboratory instruments.

Once the equipment had gone throug h the cleaning and repair proce ss it was then calibrated. All equipment that was scheduled for field use was cleaned and checked prior to calibration. Once the equipment had been calibrated, it was packed and stored to ensure the integrity of the equipment.

Inspection and calibration of the equipment is a crucial st ep in ensuring the successful completion of the field effort. All equipment was inspected for proper operation and durability prior to calibration. Calibra tion of the following equipment was conducted in accordance with the procedures outlined in EPA documents entitled " Quality Assurance Handbook for Air
Pollution Measurement Systems; Volume III - Stationary Source Specific Methods " (EPA-600/4- 77-027b) and 40 CFR Part 60 Appendix A. All calib rations were performed prior to the test

program.

• Probe Nozzles (QA Handbook, Vol III, Section 3.4.2, pp. 19) - averaged three internal diameter measurements of th e nozzle; difference between high and low

 0.1 mm. Recalibrate, reshape and sharpe n when nozzle becomes nicked, dented or corroded.

• Pitot tubes (QA Handbook Vol III, S ection 3.1.2, pp. 1-13) - measured for appropriate spacing and dimensions or cal ibrated in a wind tunnel. Rejection criteria is given on the calibration sheet. A post-test check inspected for damage.L2007-529 8 • Thermocouples (QA Handbook, Vol III, Section 3.4.2, pp. 12-18) – verified against a mercury-in-glass thermometer at three points including the anticipated measurement range. Acceptance limits - impinger + 2oF; DGM + 5.4oF; stack + 1.5 percent of stack temperature.

• Dry gas meters (EPA 40 CFR Part 60, Me thod 5, Section 5.3) - calibrated against a wet test meter. Acceptance criteria - pretest Y i = Y = + 0.02; post test Y = + 0.05 Y i .

• Orifice meter calibrated ag ainst a wet test meter. Acceptance criteria is ∆ H@ i = + 0.2 from the average value.

• Field barometer (QA Handbook, Vol III, Section 3.4.2, pp. 18-19) – compared against a mercury-in-glass barometer or use Airport Station BP and correct for elevation. Acceptance criteria -

 0.02 in. Hg; post-test check will be the same.

• Analytical balances (QA Handbook, Vol III, Section 3.4.2, pp. 19) – Acceptance criteria - calibrate with Standard Class-S weights within

 0.5 mg of stated value. Corrective action: Have manuf acturer recalibrate or adjust.

4.3.2 Glassware Preparation

Sample train glassware required specialized precleaning to avoid contamination of the sample

from the collection container or devices. The sample train glassware necessary for the EPA
Method 29 sampling trains was precleaned using an Alconox ® soap and water wash. Deionized
water was used for rinsing followed by air-drying. The glassware was then soaked in nitric acid bath (10% nitric acid) followe d again by a deionized water rinse followed by air-drying. The
glassware was then sealed with Parafilm ®

.

4.3.3 Sample Media Preparation

All reagents were checked in accordance with the TRC’s existing QC Program to minimize the probability of using contaminated solvents. This included the use of spectro-grade solvents from

the same lot and the collection and anal ysis of the appropriate blanks.

4.4 ONSITE SAMPLING ACTIVITIESL2007-529 9 Onsite sampling activities included the emissions testing of the previously mentioned outlet stacks and collection of operational data.

4.4.1 EPA Methods 1 and 2 for Velocity Measurements and Cyclonic Flow

Velocity traverses were conducted on the outle t stacks with an S-type pitot assembly in

accordance with EPA Reference Methods 1 and 2. An S-type pitot tube with an attached

inclined manometer was used to measure the exha ust velocities from the sampling location. An attached Type-K thermocouple with remote digita l display was used to determine the flue gas temperature. During the test program, veloci ty measurements were conducted during each particulate matter and/or mercury sampling te st run. The required number of velocity measurements points for each sampling locati on was determined following EPA Method 1.

Cyclonic flow checks were conducted at the samp ling locations in accordance with Section 2.4 of EPA Method 1. This procedure is referred to as the nulling technique. An S-type pitot tube

connected to an inclined manometer was used in this method. The pitot tube was positioned at each traverse point so that the face openings of the pitot tube were perp endicular to the stack
cross-sectional plane. Th is position is called the "0 ° reference". The velocity pressure ( Δ P)

measurement was noted. If the Δ P reading was zero, the cycloni c angle was recorded as 0 ° . If

the Δ P reading was not zero, the pitot tube was ro tated clockwise or counter clockwise until the

Δ P reading became zero. This angle was then measur ed with a leveled protractor and reported to the nearest degree. After this null technique was applied at each traverse point, the average of
the cyclonic angles was calculated. If this average was less than 20 ° , the flow condition was
acceptable to test.

4.4.2 EPA Method 3A for O 2 and CO 2 Measurements

Oxygen and carbon dioxide concentrations were de termined for each test run according to EPA
Reference Method 3A, " Determination of Oxygen and Carbon Dioxide Concentrations in
Emissions from Stationary Sources (Instrumental Analyzer Procedure) ". An integrated sample

was collected in a Tedlar ® bag, during each test run. The sample gas was drawn through a stainless steel probe and through Teflon ® sampling line followed by a glass condenser unit toL2007-529 10 remove excess moisture which would interfere with the operation of the pump and flow meter. Sampling was conducted from a single point pos itioned at the point of average velocity. Approximately 20 liters of sample gas were collected during each test run.

Analysis was conducted using a Fyrite ga s analyzer. A sample from the Tedlar ® bag was drawn into the analyzer and immediately analyzed for percent CO 2 and percent O 2
.

4.4.3 EPA Method 4 for Moisture Determination

Moisture was determined for each test run according to EPA Reference Method 4,

" Determination of Moisture Content in Stack Gases ". The principle of this method is to remove the moisture from the sample stream and determine moisture either volumetrically or gravimetrically. Sampling was conducted in co njunction with the mercury emissions sampling

test runs.

4.4.4 EPA Method 29 for Mercury

Mercury (Hg) was also determined via EPA Method 29 “Metals Emissions from Stationary

Sources”.

The sampling train utilized the EPA Method 29 sa mpling configuration and consisted of a quartz button-hook nozzle, quartz lined heated probe, a nd heated filter housing. A thermocouple and Stype pitot tube were attached to the probe for the measurement of gas temperature and velocity.

The sample gases passed through the probe and filter assembly and were connected to an impinger train. The impinger train consisted of a series of six-ice bath cooled impingers, kept

below 68 ° F to enable condensation of entrained mois ture and the gaseous mercury species. The
first and second impingers each contained 100 mL of a 5% HNO 3 /10% H 2 O 2 solution. The third impinger was empty to separate the two chemical solutions. The fourth and fifth impingers each

contained 100 mL of a 4% KMnO 4 /10% H 2 SO 4 solution. The sixth impinger contained between 200 and 400 grams of silica gel. All filled im pingers were weighed prior to placing the impingers in the train. The impingers were fo llowed by a leak free pump, dry gas meter, andL2007-529 11 calibrated orifice meter. The s econd and fourth impingers were the modified Greenburg design. The first, third, fifth and sixth impingers were standard Greenburg Smith impingers. No silicone grease was used in the train.

TRC conducted three EPA Method 29 test runs on each source, with each test run having

duration of 120 minutes. Sampling was isokinetic ( ± 10%) with all stacks and train operating
parameters recorded at each sampling point.

Leak checks of the entire EPA Method 29 sampli ng train were performed before and after each sampling run. All leak checks and leakage rates we re documented on the relevant field test data
sheets. The acceptance criterion was a post run leak rate of ≤ 0.02 cfm at the highest vacuum
obtained during the test run. The pre run leak check criterion was ≤ 0.02 cfm at 15 in Hg.

Following the completion of each test run, th e EPA Method 29 train was transported to a recovery area onsite. The sample recovery sequence was as follows:

• All openings on the probe, inlet to cyclone/or filter holder an d impingers were sealed with Teflon ® tape.

• The sampling train was removed to the recovery area.

• The condition of the train was noted (i.e., filter, impinger contents colo r, silica gel color, etc.).

• Container No. 1 - Disassembled the filter housin g and transferred the filter to its original glass petri dish. Sealed the petri dish with Teflon ® tape and labeled it with the appropriate sample information. Any filter fibers adhering to the support gasket were transferred to the petri dish.

• Container No. 2 - The front half of the trai n, nozzle, probe, and front-half filter housing, cyclone and flask were brush-rinsed with 100 mL of 0.1N nitric acid into an amber glass container with a Teflon ® -lined cap. The containe r was sealed and labeled.

• Container No. 3 - The contents of the two 5% HNO 3 /10% H 2 O 2 impingers were weighed. The filter support, backhalf of the filter holde r and connecting glassware were rinsed three times with 100 mL of 0.1N HNO 3 into a glass amber container with a Teflon ® lined cap. The impingers and connecting glassware were rinsed with 0.1N HNO 3 . The container was sealed and labeled.L2007-529 12 • Container No. 4 - The contents of the third im pinger were weighed and transferred to a glass amber container with a Teflon ® -lined cap. The impinger and U-tubes were rinsed three times with a 100 mL portion of 0.1N nitric acid into a sample c ontainer. The container was sealed and labeled.

• Container No. 5 (Impingers 4 and 5, H 2 SO 4 /KMnO 4 Impinger Contents and Rinses) - Dried the exterior surfaces of Impinge rs 4 and 5, then weighed and recorded the weight of each impinger (to the nearest 0.5 g). Poured all of the liquid from the two H 2 SO 4 -KMnO 4 impingers into a glass sample, Container 5. Rinsed the impingers and connecting glassware three times with a tota l of 100 mL of fresh H 2 SO 4 /KMnO 4 solution and poured into Container 5. Similarly, rinsed the impingers and connecting glasswar e three times with 100 mL of DI water. Added these rinses to Cont ainer 5. The container wa s sealed and labeled.

• Container No. 6 - Rinsed the contents of im pingers 4 and 5 and conn ecting glassware with 25 mL of 8N HCl and transferred the rinsate into Container 6 filled with 200 mL of DI water. The container was sealed and labeled.

• The silica gel impinger was weighed to obtain a final weight.

• All containers were checked to ensure prope r sealing, proper labeli ng, and that all liquid levels were marked. All samples were logged onto a chain-of-custody record.

The EPA Method 29 train produced the following samples:

• Container No. 1 - Filter

• Container No. 2 - Front-Half 0.1N HNO 3 Rinse

• Container No. 3 - Impingers 1 and 2 - 5% HNO 3 /10% H 2 O 2 Impingers Catch & Rinse

• Container No. 4 - Impinger 3 - Impinger Catch & Rinse

• Container No. 5 - Impingers 4 and 5 - H 2 SO 4 /KMnO 4 Impingers Catch & Rinse

• Container No. 6 - Impingers 4 and 5 - 8N HCl Rinse

4.5 PROCESS MONITORING

Barrick Goldstrike Mines Inc. personnel collecte d representative samples of the material fed through the Roaster Mill Circuit – Dry Grinding Process during the te st period. This sample was subsequently analyzed for mercury, and the re sults included in the final report. Barrick personnel also monitored and record ed process data during each test run. The data was averaged over each test run period and provided to TRC fo r inclusion into the Final Report. Facility Process Data is contained in Appendix C.L2007-529 13 5.0 ANALYTICAL PROCEDURE S AND CALCULATIONS

This section delineates the analytical procedures and calculations that were used by TRC during the Test Program.

5.1 ANALYTICAL PROCEDURES

At the conclusion of the field effort TRC pack aged the mercury emission samples and provided delivery to the analytical laboratory. TRC utilized Maxxam Analytical Inc. (Maxxam) located in Mississauga, Ontario, Canada as the laboratory for this program.

5.2 CALCULATIONS

5.2.1 Flow Rates and Isokinetics

Time = T Dry Gas Meter, ft 3 = VM Pitot ∆ P, in. H 2 O = ∆ P Orifice ∆ H, in. H 2 O = PM Dry Gas Temp In, oF = TMI Dry Gas Temp Out, oF = TMO Stack Static Pressure, in. H 2 O = PST Stack Temp, oF = TS

1. DN = Nozzle Diameter, inches

2. PB = Barometric Pressure, inches Hg

3. TT = Net Sampling Time, minutes

4. VM = VM final - VM initial = Sample Gas Volume, ft 3

4A. VML = Use only if any final or intermediate leak check rate is over 0.02 cfm

LI = Leak rate after any given sampling period, cfm TLI = Total time of sample period in which leak occurred, minutes VML = VM - [(L1 - 0.02) TLI + (L2 - 0.02) TL2 + (L3 - 0.02) TL3 + (L4 - 0.02) TL4]

5. Average Dry Gas Temperature at meter, oF

TM = Average TMI + Average TMO 2L2007-529 14 6. Average Orifice Pressure Drop, inches Hg

PM = Average ∆ H, in. H 2 O 13.6

7. Volume of dry gas sampled at standard conditions, dscf a

VMSTD = 528 × (Y) × (VM) × (PB + PM) 29.92 × (TM + 460)

Y = dry gas meter calibration factor

8. Total Water Collected

VW = gm H 2 O silica gel + gm impinger H 2 O

Note: If ml H 2 O is measured - (ml Η 0.9982 gm/ml)

9. Volume of water vapor at standard conditions, scf b

VW gas = 0.04715 × VW

10. Percent moisture in stack gas

100 × VW gas % M = VMSTD + VW gas

11. Mole Fraction of dry gas (dimensionless)

100 - %M MD = 100

Note: The proper %M must be used in this calculation. The % vapor moisture can never be greater than the saturati on value at given stack temper ature. If 10 is greater than 10a, this is an indication of water dr oplets in the gas stream. ( If 10 < 10a - use 10 %M in calculation, If 10 > 10a - use 10a %M in calculation)

12. Molecular weight of dry stack gas

MWD = (% CO 2 × 0.44) + (% O 2 × 0.32) + [(% CO + % N 2 ) × 0.28]

12a. % Excess Air

%EA = [(% O 2 ) - 0.5 × (% CO)] × 100 [(0.264) × (% N 2 )] - (% O 2 ) + 0.5 × (% CO)L2007-529 15 13. Molecular Weight of wet stack gas

MW = (MWD × MD) + 18 × (1 - MD)

14. AS = Stack Area, square inches

Circular = π 2

2 diameter stack ⎟ ⎠ ⎞ ⎜ ⎝ ⎛

Rectangular = Length × Width

15. PS = Stack Pressure, absolute, inches Hg = PB ± Avg PST

PST = Stack static pressure

PST = PST in. H 2 O 13.6

PS = PB ± Average PST

16. TS avg = Average Stack Temperature

17. SDE avg = 

# ( ) 460 TS P avg + × Δ avg

18. Stack gas velocity at stack conditions, afpm

VS = 2 / 1

avg c MW PS 1 SDE Cp 5130 ⎥ ⎦ ⎤ ⎢ ⎣ ⎡

× × × ×

Cp = pitot tube coefficient

19. Stack gas volumetric flow rate at stack conditions, acfm d

Q a = VS × AS 144

20. Stack gas volumetric flow rate at standard conditions, dscfm e

Q s = Q a × 528 × MD × PS (29.92) × (TS avg + 460)

21. Percent Isokinetics

%ISO = 1039 f × (TS avg + 460) × VMSTD VS × TT × PS × MD × (DN) 2L2007-529 16 a = Dry standard cubic feet at 68oF (528oR) and 29.92 in. Hg
b = Standard conditions at 68oF (528oR) and 29.92 in.Hg

c = 5130 = 

## ( ) ( ) ( )( ) min sec/ 60 O H in. R Hg in. mole

- lb/lb

sec ft 85.5

2 × ⎥ ⎦ ⎤ ⎢ ⎣ ⎡

× ° ×

d = Actual cubic feet per minute

e = Dry standard cubic feet per mi nute at 68oF (528oR) and 29.92 in.Hg
f = 1039 = 29.92 in. Hg 144 in. 2 4 528oR × ft 2 × π × 100

5.2.2 Pounds Per Hour - Particle Bound, Oxidized, Elementa l and Total Mercury

Concentrations

Total mercury is defined by the method as the sum of the particulate bound mercury, oxidized mercury, and elemental mercury as shown in the following equation:

Hg(total), μ g/dscm = Hg tp + Hg 2+ + Hg o

The following equation was used for each species:

lb/hr = μ g/dscf mercury species × Qs dscfm × 60 min/hour 453.59 × 10 6 μ g/lb

mg/hr = lb × 453,590 mg hour lbL2007-529 17 6.0 QUALITY ASSURANCE

6.1 OVERVIEW

TRC management is fully committed to an effective Quality Assurance/Quality Control Program whose objective is the delivery of a quality product. For much of TRC's work, that product is data resulting from field measurements, sa mpling and analysis ac tivities, engineering assessments, and the analysis of gathered data for planning purposes. The Quality Assurance Program works to provide complete, precise, accurat e, representative data in a timely manner for each project, considering both the project's needs and budget constraints.

This section highlights the specific QA/QC procedures followed on this Test Program.

6.2 FIELD QUALITY CONTROL SUMMARY

6.2.1 Calibration Procedures

Calibration of the field sampling equipment was pe rformed prior to the field sampling effort. Copies of the calibration sheets were submitted to th e field team leader to take onsite and for the project file. Calibrations were performed as describe d in the EPA publications " Quality
Assurance Handbook for Air Pollution Measuremen t Systems; Volume III - Stationary Source
Specific Methods " (EPA-600/4-77-027b) and EPA 40 CFR Part 60 Appendix A. Equipment calibrated included the sample me tering system, thermocouples, and pitot tubes. All calibrations were available for review at the test program. Copies of the equipment calibration forms can be found in Appendix E.

6.2.2 Equipment Leak Checks

Prior to sampling, each Method 29 sampling train was leak checked according to the procedures outlined in EPA Reference Method 5. During th e course of a test run, a leak check was conducted before and after every test, or if repl acement of a component became necessary. Final leak checks were performed to ensure that no le aks developed in the trai n during the course of

the test run. All leak age rates, if any found, were recorded on the appropriate field data sheet.L2007-529 18 6.2.3 Cyclonic Flow Check

The absence of cyclonic flow within the sampli ng location was verified prior to sampling in

accordance with Section 2.4 of EPA Method 1.

6.3 DATA REDUCTION, VALI DATION, AND REPORTING

Specific QC measures were used to ensure the generation of reliable data from sampling activities. Proper collection and organization of accurate information followed by clear and concise reporting of the data is a primary goal in all projects.

6.3.1 Field Data Reduction

Standardized forms were used to record field sa mpling data. The data collected was reviewed in the field by the Field Team Leader and at leas t one other field crew member. Errors or discrepancies were noted in the field book.

6.3.2 Data Validation

TRC supervisory and QC personnel use validation me thods and criteria appropriate to the type of data and the purpose of the measurement. Record s of all data have been maintained, including that judged to be an "outlying" or spurious value. The pers ons who validated the data have sufficient knowledge of the technical work to identify questionable values.

Field sampling data were validated by the Field Team Leader and/or the QC Coordinator based on their review of the adherence to an approved sampling protocol and written sample collection procedure.

The following criteria were used to evaluate the field sampling data:

● Use of approved test procedures;

● Proper operation of the process being tested;L2007-529 19 ● Use of properly operating and calibrated equipment;

● Leak checks conducted before and after tests;

● Proper chain-of-custody maintained.

The criteria listed below were used to evaluate the analytical data:

● Use of approved analytical procedures;

● Use of properly operating and calibrated instrumentation;

● Acceptable results from analyses of QC samples (i.e., the reported values should fall within the 95 percent confidence interval for these samples).

6.3.3 Data Reporting

All data has been reported in standard units depending on the measurement and the ultimate use

of the data. The bulk of the data was co mputer processed and reported as follows:

• Exhaust Gas Stream - Gas Properties: a. Moisture, dscf and percent by volume b. Flow rate, dscfm and acfm c. Pressure, mm of Hg d. Temperature, ° F

- Gas Diluents and Pollutants a. O 2 , percent b. CO 2 , percent

c. Mercury, lbs/hr

# APPENDIX A

FIELD SAMPLING DATA SHEETS

# APPENDIX A.1

FIELD SAMPLING DATA SHEETS SYSTEM 15A

# APPENDIX A.2

FIELD SAMPLING DATA SHEETS SYSTEM 16A

# APPENDIX B

FIELD REDUCED DATA

# APPENDIX B.1

FIELD REDUCED DATA SYSTEM 15A

# APPENDIX B.2

FIELD REDUCED DATA SYSTEM 16A

# APPENDIX C

FACILITY PROCESS DATASummary of Process DataPropaneFlow(CFM) MMBtu/hrMill Feed(tph)DynamicBH DP(inchH2O)Static BHDP (inchH2O)Envi. BHDP (inchH2O)Reclm BH(inchH2O)Staticrecycle air(oF)Hg Conc.(ppm)System 15 North Mill 1 M29 Run 1 8/3/2007 9:00 8/3/2007 11:07 305.73 46.20 383.23 5.12 4.34 2.81 2.84 198.0 22.77Run 2 8/3/2007 11:50 8/3/2007 13:57 300.70 45.44 382.42 5.04 4.32 2.63 2.68 201.2 19.29Run 3 8/3/2007 14:30 8/3/2007 16:38 279.28 42.20 378.79 4.98 4.32 2.60 2.64 200.8 19.29295.24 44.61 381.48 5.05 4.33 2.68 2.72 200.0 20.45System 16 South Mill 2 M29 Run 1 8/4/2007 8:30 8/4/2007 11:08 134.81 20.37 361.63 5.20 5.41 3.60 2.64 197.7 20.34Run 2 8/4/2007 11:42 8/4/2007 13:48 181.81 27.47 386.18 5.22 5.20 3.80 2.59 198.1 20.34Run 3 8/4/2007 14:25 8/4/2007 16:31 140.15 21.18 389.22 5.16 5.26 3.77 2.54 198.4 20.34152.26 23.01 379.01 5.19 5.29 3.72 2.59 198.1 20.34

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 9:00 AM 308 46.5 388 3.04 5.11 4.16 3.18 1064 197 8/3/07 9:01 AM 308 46.5 389 3.03 5.10 4.73 3.18 1064 197 8/3/07 9:02 AM 308 46.5 389 3.03 5.12 4.44 3.19 1064 197 8/3/07 9:03 AM 308 46.5 390 3.02 5.04 4.05 3.20 1064 197 8/3/07 9:04 AM 307 46.5 390 3.02 5.04 4.29 3.20 1064 197 8/3/07 9:05 AM 307 46.5 390 3.01 5.04 4.51 3.21 1064 197 8/3/07 9:06 AM 307 46.5 390 3.01 5.17 4.38 3.22 1064 197 8/3/07 9:07 AM 307 46.5 390 3.00 5.19 4.49 3.22 1064 197 8/3/07 9:08 AM 307 46.4 390 3.00 5.01 4.64 3.23 1064 197 8/3/07 9:09 AM 307 46.4 390 2.99 4.91 4.13 3.23 1064 197 8/3/07 9:10 AM 307 46.4 390 2.99 4.97 4.15 3.24 1064 197 8/3/07 9:11 AM 307 46.4 389 2.98 5.15 4.60 3.25 1064 197 8/3/07 9:12 AM 307 46.4 389 2.98 4.97 4.49 3.25 1064 197 8/3/07 9:13 AM 307 46.4 389 2.97 5.05 4.28 3.26 1064 197 8/3/07 9:14 AM 307 46.4 389 2.97 5.21 4.25 3.27 1064 197 8/3/07 9:15 AM 307 46.4 389 2.96 5.05 4.61 3.27 1064 197 8/3/07 9:16 AM 307 46.4 389 2.96 4.93 4.15 3.28 1064 197 8/3/07 9:17 AM 307 46.4 389 2.95 5.00 4.25 3.29 1063 197 8/3/07 9:18 AM 307 46.4 389 2.95 5.13 4.58 3.29 1063 197 8/3/07 9:19 AM 307 46.4 389 2.94 5.15 4.40 3.30 1063 197 8/3/07 9:20 AM 307 46.4 389 2.93 5.07 4.21 3.30 1063 197 8/3/07 9:21 AM 307 46.4 389 2.93 5.08 4.32 3.31 1063 197 8/3/07 9:22 AM 307 46.4 389 2.92 5.18 4.61 3.32 1063 197 8/3/07 9:23 AM 307 46.4 389 2.92 5.07 4.17 3.32 1063 197 8/3/07 9:24 AM 307 46.4 389 2.91 5.02 4.06 3.33 1063 197 8/3/07 9:25 AM 307 46.4 389 2.91 5.21 4.40 3.34 1063 197 8/3/07 9:26 AM 307 46.4 389 2.90 5.28 4.38 3.34 1063 197 8/3/07 9:27 AM 307 46.4 389 2.90 5.01 4.46 3.35 1063 197 8/3/07 9:28 AM 307 46.4 388 2.89 5.12 4.21 3.36 1063 197 8/3/07 9:29 AM 307 46.4 388 2.89 5.30 4.29 3.36 1063 197 8/3/07 9:30 AM 307 46.3 388 2.88 5.18 4.29 3.37 1063 197 8/3/07 9:31 AM 307 46.3 388 2.88 5.21 4.45 3.37 1063 197 8/3/07 9:32 AM 307 46.3 388 2.87 5.18 4.56 3.38 1063 197 8/3/07 9:33 AM 307 46.3 388 2.87 5.12 4.08 3.39 1063 197 8/3/07 9:34 AM 307 46.3 388 2.86 5.07 4.18 3.39 1063 197 8/3/07 9:35 AM 307 46.3 388 2.86 5.22 4.62 3.40 1063 197 8/3/07 9:36 AM 307 46.3 388 2.85 5.36 4.55 3.41 1063 197 8/3/07 9:37 AM 307 46.3 388 2.85 5.35 4.09 3.41 1063 198 8/3/07 9:38 AM 306 46.3 388 2.84 5.19 4.06 3.42 1063 198 8/3/07 9:39 AM 306 46.3 388 2.84 5.16 4.25 3.43 1063 198 8/3/07 9:40 AM 306 46.3 388 2.83 5.20 4.16 3.43 1063 198 8/3/07 9:41 AM 306 46.3 388 2.83 5.08 4.27 3.44 1063 198 8/3/07 9:42 AM 306 46.3 388 2.82 5.27 4.70 3.44 1062 198 8/3/07 9:43 AM 306 46.3 388 2.82 5.45 4.23 3.45 1062 198 8/3/07 9:44 AM 306 46.3 388 2.82 5.19 3.86 3.46 1062 198 8/3/07 9:45 AM 306 46.3 388 2.82 5.10 4.06 3.46 1062 198 8/3/07 9:46 AM 306 46.3 388 2.82 5.14 4.67 3.47 1062 198 8/3/07 9:47 AM 306 46.3 388 2.82 5.09 4.47 3.48 1062 198 8/3/07 9:48 AM 306 46.3 388 2.82 5.10 4.21 3.48 1062 198 8/3/07 9:49 AM 306 46.3 388 2.77 5.26 4.30 3.49 1062 198 8/3/07 9:50 AM 306 46.3 388 2.69 5.29 4.41 3.53 1062 198 8/3/07 9:51 AM 306 46.3 388 2.60 5.17 3.98 2.84 1062 198 8/3/07 9:52 AM 306 46.3 388 2.52 5.13 3.98 2.12 1062 198 8/3/07 9:53 AM 306 46.2 388 2.79 5.11 4.60 1.69 1062 198 8/3/07 9:54 AM 306 46.2 388 2.68 5.26 4.65 1.66 1062 198 8/3/07 9:55 AM 306 46.2 387 2.69 5.19 3.98 1.82 1062 198 8/3/07 9:56 AM 306 46.2 385 2.90 5.17 3.80 1.86 1062 198 8/3/07 9:57 AM 306 46.2 384 2.76 5.32 4.51 1.89 1062 198 8/3/07 9:58 AM 306 46.2 383 2.75 5.17 4.82 1.92 1062 198 8/3/07 9:59 AM 306 46.2 383 2.69 5.13 4.14 1.94 1062 198 8/3/07 10:00 AM 306 46.2 382 2.62 5.22 3.83 1.97 1062 198 8/3/07 10:01 AM 306 46.2 382 2.56 5.16 4.37 2.00 1062 198 8/3/07 10:02 AM 306 46.2 382 2.58 5.11 4.67 2.02 1062 198 8/3/07 10:03 AM 306 46.2 381 2.74 5.24 4.39 2.05 1062 198 8/3/07 10:04 AM 306 46.2 381 2.73 5.20 4.16 2.08 1062 198 8/3/07 10:05 AM 306 46.2 380 2.68 5.07 4.46 2.10 1062 198 8/3/07 10:06 AM 306 46.2 380 2.70 5.14 4.35 2.13 1062 198 8/3/07 10:07 AM 306 46.2 379 2.76 5.21 4.15 2.16 1061 198 8/3/07 10:08 AM 306 46.2 379 2.66 5.03 4.27 2.19 1061 198 8/3/07 10:09 AM 306 46.2 378 2.72 5.13 4.64 2.21 1061 198 8/3/07 10:10 AM 306 46.2 378 2.64 5.13 4.50 2.24 1061 198 8/3/07 10:11 AM 306 46.2 377 2.71 5.17 4.30 2.27 1061 198 8/3/07 10:12 AM 305 46.2 377 2.85 5.09 4.24 2.29 1061 198 8/3/07 10:13 AM 305 46.2 377 2.85 5.16 4.58 2.32 1061 198 8/3/07 10:14 AM 305 46.2 379 2.85 5.26 4.48 2.35 1061 198 8/3/07 10:15 AM 305 46.1 380 2.84 4.99 4.27 2.38 1061 198 8/3/07 10:16 AM 305 46.1 381 2.84 4.94 4.48 2.33 1061 198 8/3/07 10:17 AM 305 46.1 381 2.84 5.14 4.55 2.40 1061 198 8/3/07 10:18 AM 305 46.1 381 2.83 5.15 4.21 2.50 1061 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 10:19 AM 305 46.1 381 2.83 5.04 4.06 2.50 1061 198 8/3/07 10:20 AM 305 46.1 381 2.83 5.12 4.50 2.51 1061 198 8/3/07 10:21 AM 305 46.1 381 2.82 5.30 4.55 2.51 1061 198 8/3/07 10:22 AM 305 46.1 381 2.82 4.89 4.20 2.52 1061 198 8/3/07 10:23 AM 305 46.1 381 2.82 4.97 4.12 2.52 1061 198 8/3/07 10:24 AM 305 46.1 381 2.81 5.16 4.49 2.52 1061 198 8/3/07 10:25 AM 305 46.1 380 2.81 5.22 4.29 2.53 1061 198 8/3/07 10:26 AM 305 46.1 380 2.81 5.06 4.32 2.53 1061 198 8/3/07 10:27 AM 305 46.1 380 2.80 5.06 4.69 2.54 1061 198 8/3/07 10:28 AM 305 46.1 380 2.80 5.18 4.39 2.54 1061 198 8/3/07 10:29 AM 305 46.1 380 2.80 4.98 4.02 2.55 1061 198 8/3/07 10:30 AM 305 46.1 380 2.79 4.85 4.20 2.55 1061 199 8/3/07 10:31 AM 305 46.1 380 2.79 5.05 4.64 2.55 1061 199 8/3/07 10:32 AM 305 46.1 380 2.79 5.25 4.49 2.56 1060 199 8/3/07 10:33 AM 305 46.1 380 2.78 5.10 4.15 2.56 1060 199 8/3/07 10:34 AM 305 46.1 380 2.78 4.94 4.24 2.57 1060 199 8/3/07 10:35 AM 305 46.1 379 2.77 5.09 4.47 2.57 1060 199 8/3/07 10:36 AM 305 46.1 379 2.77 5.21 4.61 2.57 1060 199 8/3/07 10:37 AM 305 46.0 379 2.77 4.87 4.38 2.58 1060 199 8/3/07 10:38 AM 305 46.0 379 2.76 4.88 4.27 2.58 1060 199 8/3/07 10:39 AM 305 46.0 379 2.76 5.21 4.23 2.59 1060 199 8/3/07 10:40 AM 305 46.0 378 2.76 5.14 4.48 2.59 1060 199 8/3/07 10:41 AM 305 46.0 378 2.75 4.95 4.52 2.59 1060 199 8/3/07 10:42 AM 305 46.0 378 2.75 5.05 4.45 2.60 1060 199 8/3/07 10:43 AM 305 46.0 377 2.75 5.23 4.17 2.60 1060 199 8/3/07 10:44 AM 305 46.0 377 2.74 5.03 4.46 2.61 1060 199 8/3/07 10:45 AM 305 46.0 376 2.74 4.88 4.41 2.61 1060 199 8/3/07 10:46 AM 304 46.0 376 2.74 5.08 4.23 2.61 1060 199 8/3/07 10:47 AM 304 46.0 375 2.73 5.16 4.28 2.62 1060 199 8/3/07 10:48 AM 304 46.0 375 2.73 5.07 4.70 2.62 1060 199 8/3/07 10:49 AM 304 46.0 375 2.73 5.02 4.66 2.63 1060 199 8/3/07 10:50 AM 304 46.0 375 2.72 5.15 4.07 3.08 1060 199 8/3/07 10:51 AM 304 46.0 375 2.72 5.22 4.08 2.87 1060 199 8/3/07 10:52 AM 304 46.0 375 2.72 4.84 4.50 2.84 1060 199 8/3/07 10:53 AM 304 46.0 375 2.71 4.92 4.25 2.95 1060 199 8/3/07 10:54 AM 304 46.0 376 2.71 5.24 4.07 2.96 1060 199 8/3/07 10:55 AM 304 46.0 376 2.71 5.19 4.44 2.96 1060 199 8/3/07 10:56 AM 304 46.0 376 2.70 4.99 4.71 2.97 1060 199 8/3/07 10:57 AM 304 46.0 377 2.70 5.11 4.21 2.97 1059 199 8/3/07 10:58 AM 304 46.0 377 2.69 5.23 3.89 2.98 1059 199 8/3/07 10:59 AM 304 46.0 378 2.69 5.02 4.27 2.98 1059 199 8/3/07 11:00 AM 304 45.9 378 2.69 4.93 4.64 2.98 1059 199 8/3/07 11:01 AM 304 45.9 378 2.68 5.21 4.45 2.99 1059 199 8/3/07 11:02 AM 304 45.9 379 2.68 5.24 4.16 2.99 1059 199 8/3/07 11:03 AM 304 45.9 379 2.68 5.09 4.34 3.00 1059 199 8/3/07 11:04 AM 304 45.9 380 2.67 5.03 4.18 3.00 1059 199 8/3/07 11:05 AM 304 45.9 380 2.67 5.25 4.34 3.00 1059 199 8/3/07 11:06 AM 304 45.9 380 2.67 5.18 4.76 3.01 1059 199 8/3/07 11:07 AM 304 45.9 381 2.66 4.89 4.47 3.01 1059 199 8/3/07 11:08 AM 304 45.9 381 2.66 5.11 3.90 3.02 1059 199 8/3/07 11:09 AM 304 45.9 381 2.66 5.24 4.14 3.02 1059 199 8/3/07 11:10 AM 304 45.9 382 2.65 5.02 4.64 3.02 1059 199 8/3/07 11:11 AM 304 45.9 382 2.65 4.99 4.31 3.03 1059 199 8/3/07 11:12 AM 304 45.9 383 2.65 5.21 4.24 3.03 1059 199 8/3/07 11:13 AM 304 45.9 383 2.64 5.18 4.60 3.04 1059 199 8/3/07 11:14 AM 304 45.9 384 2.63 4.99 4.41 3.04 1059 199 8/3/07 11:15 AM 304 45.9 384 2.45 5.04 3.96 3.05 1059 199 8/3/07 11:16 AM 304 45.9 385 2.41 5.19 4.02 3.05 1059 199 8/3/07 11:17 AM 304 45.9 386 2.39 5.06 4.76 3.05 1059 199 8/3/07 11:18 AM 304 45.9 386 2.63 5.05 4.68 3.06 1059 199 8/3/07 11:19 AM 303 45.9 387 2.57 5.26 4.00 3.06 1059 199 8/3/07 11:20 AM 303 45.9 387 2.48 5.22 4.18 3.07 1059 199 8/3/07 11:21 AM 303 45.9 388 2.53 5.00 4.44 3.07 1059 199 8/3/07 11:22 AM 303 45.8 389 2.44 4.91 4.45 3.07 1059 199 8/3/07 11:23 AM 303 45.8 389 2.48 5.27 4.41 3.08 1058 199 8/3/07 11:24 AM 303 45.8 389 2.51 5.14 4.55 3.08 1058 200 8/3/07 11:25 AM 303 45.8 390 2.47 5.09 4.26 3.09 1058 200 8/3/07 11:26 AM 303 45.8 390 2.53 5.27 4.04 3.09 1058 200 8/3/07 11:27 AM 303 45.8 390 2.55 5.17 4.23 3.16 1058 200 8/3/07 11:28 AM 303 45.8 391 2.47 5.06 4.51 2.80 1058 200 8/3/07 11:29 AM 303 45.8 391 2.46 4.97 4.52 2.09 1058 200 8/3/07 11:30 AM 303 45.8 391 2.66 5.20 4.34 1.78 1058 200 8/3/07 11:31 AM 303 45.8 392 2.79 5.26 4.41 1.79 1058 200 8/3/07 11:32 AM 303 45.8 392 2.73 5.14 4.08 1.80 1058 200 8/3/07 11:33 AM 303 45.8 392 2.68 5.13 4.27 1.91 1058 200 8/3/07 11:34 AM 303 45.8 391 2.63 5.30 4.64 1.95 1058 200 8/3/07 11:35 AM 303 45.8 390 2.58 5.13 4.48 1.96 1058 200 8/3/07 11:36 AM 303 45.8 389 2.53 4.98 3.91 1.97 1058 200 8/3/07 11:37 AM 303 45.8 388 2.48 5.28 3.98 1.98 1058 200

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 11:38 AM 303 45.8 387 2.42 5.27 4.80 1.99 1058 200 8/3/07 11:39 AM 303 45.8 386 2.39 5.07 4.54 2.00 1058 200 8/3/07 11:40 AM 303 45.8 385 2.75 5.17 4.03 2.01 1058 200 8/3/07 11:41 AM 303 45.8 385 2.75 5.18 4.04 2.02 1058 200 8/3/07 11:42 AM 303 45.8 384 2.74 5.13 4.80 2.03 1058 200 8/3/07 11:43 AM 303 45.8 383 2.74 5.15 4.50 2.04 1058 200 8/3/07 11:44 AM 303 45.8 382 2.74 5.20 3.94 2.05 1058 200 8/3/07 11:45 AM 303 45.7 381 2.74 5.16 4.18 2.06 1058 200 8/3/07 11:46 AM 303 45.7 380 2.74 5.03 4.72 2.07 1058 200 8/3/07 11:47 AM 303 45.7 379 2.74 5.05 4.36 2.08 1058 200 8/3/07 11:48 AM 303 45.7 378 2.73 5.27 3.93 2.09 1057 200 8/3/07 11:49 AM 303 45.7 377 2.73 5.24 4.32 2.10 1057 200 8/3/07 11:50 AM 303 45.7 376 2.73 5.03 4.87 2.16 1057 200 8/3/07 11:51 AM 303 45.7 377 2.73 5.10 4.25 2.35 1057 200 8/3/07 11:52 AM 303 45.7 377 2.73 5.15 3.99 2.30 1057 200 8/3/07 11:53 AM 302 45.7 377 2.73 4.99 4.40 2.45 1057 200 8/3/07 11:54 AM 302 45.7 377 2.72 5.15 4.71 2.27 1057 200 8/3/07 11:55 AM 302 45.7 377 2.72 5.31 4.31 2.75 1057 200 8/3/07 11:56 AM 302 45.7 377 2.72 5.13 4.12 2.76 1057 200 8/3/07 11:57 AM 302 45.7 377 2.72 5.10 4.48 2.76 1057 200 8/3/07 11:58 AM 302 45.7 377 2.72 5.05 4.31 2.76 1057 200 8/3/07 11:59 AM 302 45.7 377 2.72 5.09 4.39 2.76 1057 200 8/3/07 12:00 PM 302 45.7 377 2.71 5.12 4.38 2.76 1057 200 8/3/07 12:01 PM 302 45.7 377 2.71 5.15 4.60 2.76 1057 200 8/3/07 12:02 PM 302 45.7 377 2.71 5.28 4.08 2.76 1057 200 8/3/07 12:03 PM 302 45.7 377 2.71 5.13 4.26 2.76 1057 200 8/3/07 12:04 PM 302 45.7 377 2.71 4.93 4.59 2.77 1057 200 8/3/07 12:05 PM 302 45.7 377 2.71 5.06 4.60 2.77 1057 200 8/3/07 12:06 PM 302 45.7 378 2.70 5.21 3.97 2.77 1057 200 8/3/07 12:07 PM 302 45.6 378 2.70 5.15 4.11 2.77 1057 200 8/3/07 12:08 PM 302 45.6 378 2.70 5.13 4.63 2.77 1057 200 8/3/07 12:09 PM 302 45.6 378 2.70 5.17 4.56 2.77 1057 200 8/3/07 12:10 PM 302 45.6 378 2.70 4.98 4.04 2.77 1057 200 8/3/07 12:11 PM 302 45.6 379 2.70 4.95 4.03 2.77 1057 200 8/3/07 12:12 PM 302 45.6 379 2.69 5.14 4.72 2.78 1057 200 8/3/07 12:13 PM 302 45.6 379 2.69 5.13 4.67 2.78 1056 200 8/3/07 12:14 PM 302 45.6 379 2.69 5.05 4.40 2.78 1056 200 8/3/07 12:15 PM 302 45.6 379 2.69 4.94 4.26 2.78 1056 200 8/3/07 12:16 PM 302 45.6 380 2.69 5.03 4.56 2.78 1056 200 8/3/07 12:17 PM 302 45.6 380 2.69 5.09 4.27 2.78 1056 201 8/3/07 12:18 PM 302 45.6 380 2.68 5.08 4.14 2.76 1056 201 8/3/07 12:19 PM 302 45.6 380 2.68 5.03 4.48 2.73 1056 201 8/3/07 12:20 PM 302 45.6 380 2.68 5.07 4.53 2.70 1056 201 8/3/07 12:21 PM 302 45.6 379 2.68 5.06 4.19 2.67 1056 201 8/3/07 12:22 PM 302 45.6 378 2.68 4.82 4.12 2.63 1056 201 8/3/07 12:23 PM 302 45.6 378 2.68 4.89 4.72 2.74 1056 201 8/3/07 12:24 PM 302 45.6 377 2.67 5.26 4.29 2.80 1056 201 8/3/07 12:25 PM 302 45.6 378 2.67 5.11 4.05 2.81 1056 201 8/3/07 12:26 PM 302 45.6 379 2.67 4.92 4.34 2.94 1056 201 8/3/07 12:27 PM 301 45.6 379 2.67 4.86 4.59 2.94 1056 201 8/3/07 12:28 PM 301 45.6 380 2.67 4.94 4.22 2.95 1056 201 8/3/07 12:29 PM 301 45.5 381 2.67 4.97 3.90 2.95 1056 201 8/3/07 12:30 PM 301 45.5 381 2.67 5.00 4.36 2.96 1056 201 8/3/07 12:31 PM 301 45.5 382 2.66 5.10 4.67 2.96 1056 201 8/3/07 12:32 PM 301 45.5 383 2.66 5.18 4.39 2.97 1056 201 8/3/07 12:33 PM 301 45.5 383 2.66 5.00 4.03 2.97 1056 201 8/3/07 12:34 PM 301 45.5 384 2.66 4.75 4.15 2.98 1056 201 8/3/07 12:35 PM 301 45.5 384 2.66 4.82 4.27 2.98 1056 201 8/3/07 12:36 PM 301 45.5 383 2.66 5.22 4.30 2.99 1056 201 8/3/07 12:37 PM 301 45.5 383 2.65 5.05 4.40 3.00 1056 201 8/3/07 12:38 PM 301 45.5 383 2.65 4.91 4.38 3.00 1055 201 8/3/07 12:39 PM 301 45.5 383 2.65 4.97 4.30 3.01 1055 201 8/3/07 12:40 PM 301 45.5 383 2.65 5.04 4.46 3.01 1055 201 8/3/07 12:41 PM 301 45.5 383 2.65 4.97 4.43 3.02 1055 201 8/3/07 12:42 PM 301 45.5 382 2.65 4.86 4.35 3.02 1055 201 8/3/07 12:43 PM 301 45.5 382 2.64 4.98 4.35 3.03 1055 201 8/3/07 12:44 PM 301 45.5 382 2.64 5.21 3.95 3.03 1055 201 8/3/07 12:45 PM 301 45.5 382 2.64 5.00 4.25 3.04 1055 201 8/3/07 12:46 PM 301 45.5 382 2.64 4.78 4.61 3.04 1055 201 8/3/07 12:47 PM 301 45.5 381 2.64 5.01 4.20 3.05 1055 201 8/3/07 12:48 PM 301 45.5 381 2.64 5.27 3.98 3.05 1055 201 8/3/07 12:49 PM 301 45.5 381 2.63 5.05 4.20 3.06 1055 201 8/3/07 12:50 PM 301 45.5 381 2.63 4.85 4.46 3.07 1055 201 8/3/07 12:51 PM 301 45.5 381 2.63 5.05 4.19 3.07 1055 201 8/3/07 12:52 PM 301 45.4 381 2.63 5.04 4.32 3.08 1055 201 8/3/07 12:53 PM 301 45.4 380 2.63 4.94 4.76 3.08 1055 201 8/3/07 12:54 PM 301 45.4 380 2.63 5.12 4.10 3.09 1055 201 8/3/07 12:55 PM 301 45.4 380 2.62 5.29 3.72 3.09 1055 201 8/3/07 12:56 PM 301 45.4 380 2.62 5.18 4.10 2.95 1055 201

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 12:57 PM 301 45.4 381 2.62 4.80 4.60 2.30 1055 201 8/3/07 12:58 PM 301 45.4 381 2.62 4.92 4.48 1.93 1055 201 8/3/07 12:59 PM 301 45.4 381 2.62 5.23 4.50 1.68 1055 201 8/3/07 1:00 PM 301 45.4 382 2.62 5.12 4.38 1.64 1055 201 8/3/07 1:01 PM 300 45.4 382 2.61 5.12 4.22 2.15 1055 201 8/3/07 1:02 PM 300 45.4 383 2.61 5.28 4.14 2.17 1055 201 8/3/07 1:03 PM 300 45.4 383 2.61 5.10 4.30 2.17 1054 201 8/3/07 1:04 PM 300 45.4 383 2.61 4.94 4.46 2.17 1054 201 8/3/07 1:05 PM 300 45.4 384 2.61 5.03 4.39 2.17 1054 201 8/3/07 1:06 PM 300 45.4 384 2.61 5.28 4.51 2.17 1054 201 8/3/07 1:07 PM 300 45.4 384 2.60 5.23 4.36 2.17 1054 201 8/3/07 1:08 PM 300 45.4 385 2.60 5.09 4.24 2.17 1054 201 8/3/07 1:09 PM 300 45.4 385 2.60 5.15 4.04 2.17 1054 201 8/3/07 1:10 PM 300 45.4 385 2.60 5.15 4.31 2.17 1054 201 8/3/07 1:11 PM 300 45.4 386 2.60 5.07 4.62 2.17 1054 202 8/3/07 1:12 PM 300 45.4 386 2.60 5.07 4.42 2.17 1054 202 8/3/07 1:13 PM 300 45.4 386 2.59 5.32 4.02 2.26 1054 202 8/3/07 1:14 PM 300 45.3 387 2.59 5.05 4.17 2.40 1054 202 8/3/07 1:15 PM 300 45.3 387 2.59 4.92 4.34 2.44 1054 202 8/3/07 1:16 PM 300 45.3 388 2.59 5.15 4.35 2.45 1054 202 8/3/07 1:17 PM 300 45.3 388 2.59 5.16 4.45 2.46 1054 202 8/3/07 1:18 PM 300 45.3 387 2.59 5.14 4.46 2.47 1054 202 8/3/07 1:19 PM 300 45.3 386 2.58 5.02 4.33 2.49 1054 202 8/3/07 1:20 PM 300 45.3 385 2.58 5.05 4.14 2.50 1054 202 8/3/07 1:21 PM 300 45.3 384 2.58 5.13 4.40 2.51 1054 202 8/3/07 1:22 PM 300 45.3 385 2.58 5.00 4.61 2.52 1054 202 8/3/07 1:23 PM 300 45.3 385 2.58 5.04 4.38 2.53 1054 202 8/3/07 1:24 PM 300 45.3 385 2.58 5.30 4.05 2.55 1054 202 8/3/07 1:25 PM 300 45.3 385 2.57 5.08 4.37 2.56 1054 202 8/3/07 1:26 PM 300 45.3 385 2.57 4.88 4.67 2.57 1054 202 8/3/07 1:27 PM 300 45.3 385 2.57 4.93 4.36 2.58 1054 202 8/3/07 1:28 PM 300 45.3 385 2.57 5.15 4.18 2.60 1053 202 8/3/07 1:29 PM 300 45.3 385 2.57 4.98 4.28 2.83 1053 202 8/3/07 1:30 PM 300 45.3 385 2.57 5.04 4.33 2.79 1053 202 8/3/07 1:31 PM 300 45.3 385 2.56 5.17 4.41 2.91 1053 202 8/3/07 1:32 PM 300 45.3 386 2.56 5.06 4.50 2.91 1053 202 8/3/07 1:33 PM 300 45.3 386 2.56 4.94 4.21 2.92 1053 202 8/3/07 1:34 PM 300 45.3 386 2.56 4.90 4.12 2.92 1053 202 8/3/07 1:35 PM 299 45.3 386 2.56 5.03 4.25 2.93 1053 202 8/3/07 1:36 PM 299 45.3 386 2.56 5.18 4.48 2.93 1053 202 8/3/07 1:37 PM 299 45.2 386 2.56 4.96 4.54 2.94 1053 202 8/3/07 1:38 PM 299 45.2 386 2.55 4.95 3.94 2.94 1053 202 8/3/07 1:39 PM 299 45.2 386 2.55 5.16 3.97 2.95 1053 202 8/3/07 1:40 PM 299 45.2 386 2.55 5.05 4.47 2.96 1053 202 8/3/07 1:41 PM 299 45.2 386 2.55 4.78 4.50 2.96 1053 202 8/3/07 1:42 PM 299 45.2 387 2.55 4.85 4.21 2.97 1053 202 8/3/07 1:43 PM 299 45.2 387 2.55 5.10 3.91 2.97 1053 202 8/3/07 1:44 PM 299 45.2 387 2.54 4.97 4.37 2.98 1053 202 8/3/07 1:45 PM 299 45.2 387 2.54 4.86 4.58 2.98 1053 202 8/3/07 1:46 PM 299 45.2 387 2.54 4.97 4.33 2.99 1053 202 8/3/07 1:47 PM 299 45.2 387 2.54 5.11 3.96 2.99 1053 202 8/3/07 1:48 PM 299 45.2 387 2.54 5.05 4.15 3.00 1053 202 8/3/07 1:49 PM 299 45.2 387 2.54 4.77 4.45 3.00 1053 202 8/3/07 1:50 PM 299 45.2 387 2.53 4.71 4.47 3.04 1053 202 8/3/07 1:51 PM 299 45.2 387 2.53 5.06 4.15 2.91 1053 202 8/3/07 1:52 PM 299 45.2 388 2.53 5.05 4.34 2.31 1053 202 8/3/07 1:53 PM 299 45.2 388 2.53 4.82 4.08 1.83 1052 202 8/3/07 1:54 PM 299 45.2 388 2.53 4.91 3.96 1.72 1052 202 8/3/07 1:55 PM 299 45.2 388 2.53 5.14 4.44 1.76 1052 202 8/3/07 1:56 PM 299 45.2 387 2.52 4.93 4.59 1.98 1052 202 8/3/07 1:57 PM 299 45.2 387 2.52 4.66 4.23 2.03 1052 202 8/3/07 1:58 PM 299 45.2 386 2.52 4.80 4.33 2.08 1052 202 8/3/07 1:59 PM 299 45.1 386 2.52 5.13 4.76 2.14 1052 202 8/3/07 2:00 PM 299 45.1 385 2.52 5.16 4.13 2.19 1052 202 8/3/07 2:01 PM 299 45.1 385 2.52 4.99 3.69 2.24 1052 202 8/3/07 2:02 PM 299 45.1 384 2.51 4.81 4.11 2.30 1052 202 8/3/07 2:03 PM 299 45.1 384 2.51 4.93 4.69 2.80 1052 202 8/3/07 2:04 PM 299 45.1 383 2.51 5.05 4.54 1.84 1052 203 8/3/07 2:05 PM 299 45.1 383 2.51 4.81 4.01 1.63 1052 203 8/3/07 2:06 PM 299 45.1 382 2.51 4.82 4.19 1.80 1052 203 8/3/07 2:07 PM 299 45.1 382 2.51 5.06 4.43 2.14 1052 203 8/3/07 2:08 PM 299 45.1 381 2.50 5.02 4.53 2.14 1052 203 8/3/07 2:09 PM 298 45.1 381 2.50 4.75 4.40 2.13 1052 203 8/3/07 2:10 PM 298 45.1 380 2.50 4.74 4.52 2.13 1052 203 8/3/07 2:11 PM 298 45.1 380 2.50 5.03 4.25 2.12 1052 203 8/3/07 2:12 PM 298 45.1 379 2.50 5.05 4.21 2.12 1052 203 8/3/07 2:13 PM 298 45.1 379 2.50 4.75 4.10 2.11 1052 203 8/3/07 2:14 PM 298 45.1 378 2.49 4.76 4.19 2.11 1052 203 8/3/07 2:15 PM 298 45.1 378 2.49 4.84 4.45 2.17 1052 203

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 2:16 PM 298 45.1 377 2.49 4.97 4.42 2.43 1052 203 8/3/07 2:17 PM 298 45.1 377 2.49 4.90 4.38 2.45 1052 203 8/3/07 2:18 PM 298 45.1 376 2.49 4.88 4.21 2.46 1052 203 8/3/07 2:19 PM 298 45.1 377 2.49 4.91 4.39 2.48 1051 203 8/3/07 2:20 PM 298 45.1 377 2.48 5.03 4.35 2.50 1051 203 8/3/07 2:21 PM 298 45.0 377 2.48 4.66 4.22 2.52 1051 203 8/3/07 2:22 PM 298 45.0 377 2.48 4.52 4.22 2.54 1051 203 8/3/07 2:23 PM 298 45.0 377 2.48 4.78 4.28 2.56 1051 203 8/3/07 2:24 PM 298 45.0 377 2.48 5.11 4.40 2.57 1051 203 8/3/07 2:25 PM 298 45.0 378 2.48 5.05 4.22 2.59 1051 203 8/3/07 2:26 PM 298 45.0 378 2.47 4.75 4.25 2.61 1051 203 8/3/07 2:27 PM 298 45.0 378 2.47 4.68 4.45 2.63 1051 203 8/3/07 2:28 PM 298 45.0 378 2.47 4.74 4.28 2.76 1051 203 8/3/07 2:29 PM 298 45.0 378 2.47 4.79 3.93 2.82 1051 203 8/3/07 2:30 PM 298 45.0 378 2.47 4.84 4.14 2.80 1051 203 8/3/07 2:31 PM 298 45.0 378 2.47 4.94 4.63 2.84 1051 203 8/3/07 2:32 PM 298 45.0 379 2.46 4.85 4.41 2.87 1051 203 8/3/07 2:33 PM 298 45.0 379 2.46 4.97 4.14 2.90 1051 203 8/3/07 2:34 PM 298 45.0 379 2.46 4.90 4.06 2.94 1051 202 8/3/07 2:35 PM 298 45.0 379 2.46 4.66 4.51 2.97 1051 202 8/3/07 2:36 PM 298 45.0 380 2.46 4.67 4.21 3.01 1051 202 8/3/07 2:37 PM 298 45.0 380 2.46 4.83 4.33 3.04 1051 202 8/3/07 2:38 PM 298 45.0 381 2.46 5.03 4.77 3.07 1051 202 8/3/07 2:39 PM 298 45.0 381 2.45 4.88 4.06 3.11 1051 202 8/3/07 2:40 PM 298 45.0 382 2.45 4.70 3.76 3.14 1051 202 8/3/07 2:41 PM 297 44.9 383 2.45 4.68 4.09 3.18 1051 202 8/3/07 2:42 PM 297 44.9 383 2.45 4.84 4.78 3.21 1051 202 8/3/07 2:43 PM 296 44.8 384 2.45 5.03 4.56 3.24 1051 202 8/3/07 2:44 PM 296 44.7 384 2.45 4.90 3.99 3.28 1050 202 8/3/07 2:45 PM 295 44.6 385 2.44 4.59 4.27 3.34 1050 202 8/3/07 2:46 PM 295 44.5 385 2.44 4.66 4.41 3.39 1050 202 8/3/07 2:47 PM 294 44.4 386 2.44 4.95 4.44 2.71 1050 202 8/3/07 2:48 PM 294 44.4 387 2.44 4.81 4.42 2.06 1050 202 8/3/07 2:49 PM 293 44.3 387 2.44 4.69 4.35 1.84 1050 202 8/3/07 2:50 PM 292 44.2 388 2.44 4.81 4.17 1.74 1050 202 8/3/07 2:51 PM 292 44.1 387 2.43 5.04 3.95 1.80 1050 202 8/3/07 2:52 PM 291 44.0 386 2.43 4.89 4.43 2.15 1050 202 8/3/07 2:53 PM 291 43.9 386 2.43 4.60 4.73 2.14 1050 202 8/3/07 2:54 PM 290 43.8 385 2.43 4.52 4.25 2.14 1050 202 8/3/07 2:55 PM 290 43.8 384 2.43 4.82 3.95 2.13 1050 202 8/3/07 2:56 PM 289 43.7 383 2.43 5.01 4.40 2.12 1050 202 8/3/07 2:57 PM 288 43.6 383 2.42 4.86 4.64 2.11 1050 202 8/3/07 2:58 PM 288 43.5 382 2.42 4.75 4.36 2.10 1050 202 8/3/07 2:59 PM 287 43.4 381 2.42 4.85 3.98 2.10 1050 202 8/3/07 3:00 PM 287 43.3 380 2.42 4.97 4.41 2.09 1050 202 8/3/07 3:01 PM 286 43.3 380 2.42 4.87 4.49 2.08 1050 202 8/3/07 3:02 PM 286 43.2 379 2.42 4.57 4.32 2.07 1050 202 8/3/07 3:03 PM 285 43.1 379 2.41 4.68 4.21 2.07 1050 202 8/3/07 3:04 PM 285 43.0 378 2.41 4.94 4.22 2.12 1050 202 8/3/07 3:05 PM 284 42.9 378 2.41 5.06 4.35 2.54 1050 202 8/3/07 3:06 PM 283 42.7 378 2.41 4.79 4.50 2.41 1050 202 8/3/07 3:07 PM 266 40.3 377 2.41 4.79 4.49 2.43 1050 202 8/3/07 3:08 PM 266 40.3 377 2.41 4.98 4.28 2.44 1049 201 8/3/07 3:09 PM 267 40.3 376 2.40 4.96 4.21 2.46 1048 201 8/3/07 3:10 PM 267 40.3 376 2.40 4.71 4.37 2.47 1047 201 8/3/07 3:11 PM 267 40.3 375 2.40 4.79 4.55 2.49 1046 201 8/3/07 3:12 PM 267 40.3 375 2.40 5.05 4.39 2.51 1045 201 8/3/07 3:13 PM 267 40.3 374 2.40 5.17 4.26 2.52 1044 201 8/3/07 3:14 PM 267 40.3 374 2.40 5.02 4.29 2.54 1043 201 8/3/07 3:15 PM 267 40.4 373 2.39 4.76 4.42 2.55 1043 201 8/3/07 3:16 PM 267 40.4 374 2.39 4.84 4.53 2.57 1042 201 8/3/07 3:17 PM 267 40.4 375 2.58 5.01 4.27 2.59 1041 201 8/3/07 3:18 PM 267 40.4 375 2.55 4.87 4.37 2.60 1040 201 8/3/07 3:19 PM 267 40.4 376 2.58 4.82 4.24 2.62 1039 201 8/3/07 3:20 PM 267 40.4 377 2.52 5.05 4.34 2.63 1038 201 8/3/07 3:21 PM 268 40.4 377 2.82 5.10 4.38 2.65 1037 201 8/3/07 3:22 PM 268 40.4 378 2.68 4.87 4.43 2.75 1036 201 8/3/07 3:23 PM 268 40.4 378 2.62 4.75 4.37 2.78 1035 201 8/3/07 3:24 PM 268 40.5 379 2.77 5.01 4.45 2.96 1034 201 8/3/07 3:25 PM 268 40.5 380 2.66 5.16 4.57 2.98 1033 201 8/3/07 3:26 PM 268 40.5 380 2.57 4.92 4.01 3.00 1032 201 8/3/07 3:27 PM 268 40.5 381 2.48 4.89 3.95 3.02 1031 201 8/3/07 3:28 PM 268 40.5 382 2.38 4.96 4.62 3.05 1030 201 8/3/07 3:29 PM 268 40.5 382 2.73 5.02 4.64 3.07 1029 201 8/3/07 3:30 PM 268 40.5 382 2.68 5.00 3.94 3.09 1029 201 8/3/07 3:31 PM 268 40.5 381 2.65 4.99 3.97 3.11 1028 201 8/3/07 3:32 PM 268 40.6 381 2.66 5.27 4.50 3.13 1027 201 8/3/07 3:33 PM 268 40.6 381 2.66 5.06 4.61 3.15 1026 201 8/3/07 3:34 PM 269 40.6 381 2.66 4.68 4.06 3.17 1025 201

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/3/07 3:35 PM 269 40.6 381 2.66 4.98 4.13 3.19 1024 201 8/3/07 3:36 PM 269 40.6 381 2.66 5.23 4.38 3.21 1023 201 8/3/07 3:37 PM 269 40.6 380 2.66 5.05 4.62 3.23 1022 201 8/3/07 3:38 PM 269 40.6 380 2.67 5.10 4.23 3.25 1021 201 8/3/07 3:39 PM 269 40.6 380 2.67 5.21 4.33 3.27 1020 201 8/3/07 3:40 PM 269 40.6 380 2.67 5.02 4.36 3.29 1019 201 8/3/07 3:41 PM 269 40.7 380 2.67 4.84 4.61 3.31 1018 201 8/3/07 3:42 PM 269 40.7 380 2.67 5.07 4.46 3.33 1017 201 8/3/07 3:43 PM 269 40.7 380 2.67 5.23 4.29 3.35 1016 200 8/3/07 3:44 PM 269 40.7 381 2.68 5.13 4.24 3.37 1016 200 8/3/07 3:45 PM 269 40.7 381 2.68 5.03 4.56 3.39 1015 200 8/3/07 3:46 PM 269 40.7 381 2.68 5.14 4.51 3.42 1014 200 8/3/07 3:47 PM 270 40.7 382 2.68 5.07 4.23 2.74 1013 200 8/3/07 3:48 PM 270 40.7 382 2.68 4.96 4.18 2.12 1012 200 8/3/07 3:49 PM 270 40.8 382 2.68 5.01 4.53 1.71 1011 200 8/3/07 3:50 PM 270 40.8 382 2.69 5.24 4.70 1.77 1010 200 8/3/07 3:51 PM 270 40.8 380 2.69 5.03 4.17 1.89 1009 200 8/3/07 3:52 PM 270 40.8 378 2.69 4.98 4.05 2.07 1008 200 8/3/07 3:53 PM 270 40.8 377 2.69 5.22 4.43 2.08 1007 200 8/3/07 3:54 PM 270 40.8 377 2.69 5.12 4.72 2.08 1006 200 8/3/07 3:55 PM 270 40.8 377 2.69 5.05 4.09 2.09 1005 200 8/3/07 3:56 PM 270 40.8 377 2.69 5.16 4.14 2.09 1004 200 8/3/07 3:57 PM 270 40.8 377 2.70 5.06 4.33 2.10 1003 200 8/3/07 3:58 PM 270 40.9 377 2.70 4.92 4.56 2.10 1002 200 8/3/07 3:59 PM 270 40.9 377 2.70 5.03 4.20 2.10 1002 200 8/3/07 4:00 PM 271 40.9 377 2.70 5.20 4.26 2.11 1001 200 8/3/07 4:01 PM 271 40.9 377 2.70 5.17 4.56 2.11 1000 200 8/3/07 4:02 PM 271 40.9 377 2.70 5.10 4.41 2.12 999 200 8/3/07 4:03 PM 271 40.9 377 2.71 4.89 4.18 2.30 998 200 8/3/07 4:04 PM 271 40.9 377 2.71 5.11 4.17 2.42 997 200 8/3/07 4:05 PM 271 40.9 377 2.71 5.05 4.52 2.42 996 200 8/3/07 4:06 PM 271 41.0 378 2.71 4.97 4.22 2.42 995 200 8/3/07 4:07 PM 271 41.0 378 2.71 5.27 4.20 2.43 994 200 8/3/07 4:08 PM 271 41.0 378 2.71 5.29 4.38 2.44 993 200 8/3/07 4:09 PM 271 41.0 378 2.72 4.97 4.52 2.44 992 200 8/3/07 4:10 PM 271 41.0 378 2.72 4.91 4.25 2.45 991 200 8/3/07 4:11 PM 271 41.0 378 2.72 5.18 4.08 2.45 991 200 8/3/07 4:12 PM 271 41.0 378 2.72 5.07 4.32 2.46 993 200 8/3/07 4:13 PM 272 41.0 378 2.72 5.09 4.65 2.46 996 200 8/3/07 4:14 PM 272 41.1 378 2.72 5.25 4.22 2.47 999 200 8/3/07 4:15 PM 272 41.1 378 2.72 5.15 3.98 2.47 1002 200 8/3/07 4:16 PM 272 41.1 378 2.73 5.02 4.28 2.48 1006 200 8/3/07 4:17 PM 272 41.1 378 2.73 5.02 4.56 2.48 1009 200 8/3/07 4:18 PM 272 41.1 378 2.73 5.06 4.24 2.49 1012 200 8/3/07 4:19 PM 272 41.1 377 2.73 5.22 3.77 2.50 1015 199 8/3/07 4:20 PM 281 42.4 376 2.73 5.08 4.14 2.50 1018 199 8/3/07 4:21 PM 293 44.2 375 2.73 5.06 4.81 2.53 1021 199 8/3/07 4:22 PM 293 44.2 374 2.74 5.18 4.33 2.72 1024 199 8/3/07 4:23 PM 293 44.2 374 2.74 5.09 3.74 2.64 1026 199 8/3/07 4:24 PM 293 44.2 374 2.74 5.01 3.90 2.75 1027 199 8/3/07 4:25 PM 293 44.2 374 2.74 5.17 4.56 2.84 1028 199 8/3/07 4:26 PM 293 44.2 374 2.74 5.09 4.47 2.85 1028 199 8/3/07 4:27 PM 293 44.2 374 2.74 4.93 4.14 2.86 1029 199 8/3/07 4:28 PM 293 44.2 374 2.75 5.03 4.41 2.86 1030 199 8/3/07 4:29 PM 293 44.2 374 2.75 5.14 4.69 2.87 1031 199 8/3/07 4:30 PM 293 44.2 374 2.75 5.02 4.09 2.88 1032 199 8/3/07 4:31 PM 293 44.2 374 2.75 5.09 3.73 2.89 1033 199 8/3/07 4:32 PM 293 44.2 374 2.75 5.04 4.17 2.90 1033 199 8/3/07 4:33 PM 293 44.2 374 2.75 5.05 4.79 2.91 1034 199 8/3/07 4:34 PM 293 44.2 374 2.76 5.00 4.27 2.92 1035 199 8/3/07 4:35 PM 293 44.2 374 2.76 5.00 4.11 2.93 1036 199 8/3/07 4:36 PM 293 44.2 374 2.76 5.19 4.24 2.93 1037 199 8/3/07 4:37 PM 293 44.2 374 2.67 5.18 4.42 2.94 1037 199 8/3/07 4:38 PM 293 44.2 374 2.77 4.97 4.14 2.95 1038 199

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 8:30 AM 145 21.9 383 2.66 5.25 5.33 3.18 691 198 8/4/07 8:31 AM 133 20.2 383 2.67 5.16 5.23 3.19 691 198 8/4/07 8:32 AM 131 19.8 384 2.68 5.14 5.21 3.20 690 198 8/4/07 8:33 AM 142 21.4 384 2.69 5.18 5.16 3.22 690 198 8/4/07 8:34 AM 133 20.1 384 2.70 5.31 5.24 3.23 690 198 8/4/07 8:35 AM 125 18.9 384 2.71 5.29 5.37 3.25 690 198 8/4/07 8:36 AM 130 19.6 380 2.72 5.12 5.23 3.26 690 198 8/4/07 8:37 AM 129 19.6 380 2.73 5.24 5.36 3.27 690 198 8/4/07 8:38 AM 128 19.3 380 2.73 5.37 5.22 3.29 690 198 8/4/07 8:39 AM 124 18.8 381 2.74 5.24 5.13 3.30 689 198 8/4/07 8:40 AM 137 20.7 382 2.75 5.27 5.26 3.31 689 198 8/4/07 8:41 AM 126 19.0 385 2.76 5.26 5.16 3.33 689 198 8/4/07 8:42 AM 119 18.0 383 2.77 5.21 5.04 3.34 689 198 8/4/07 8:43 AM 135 20.4 383 2.78 5.13 5.16 3.36 689 198 8/4/07 8:44 AM 126 19.1 383 2.79 5.06 5.29 3.37 689 198 8/4/07 8:45 AM 123 18.6 382 2.80 5.21 5.42 3.40 688 198 8/4/07 8:46 AM 133 20.1 382 2.81 5.28 5.44 3.00 688 198 8/4/07 8:47 AM 127 19.3 383 2.81 5.20 5.30 2.24 688 198 8/4/07 8:48 AM 111 16.8 384 2.82 5.20 5.25 1.76 688 198 8/4/07 8:49 AM 112 16.9 384 2.83 5.25 5.13 1.81 688 198 8/4/07 8:50 AM 141 21.3 384 2.84 5.30 5.01 1.87 688 198 8/4/07 8:51 AM 130 19.6 385 2.85 5.36 5.19 1.93 688 198 8/4/07 8:52 AM 118 17.8 386 2.86 5.21 5.34 1.99 687 198 8/4/07 8:53 AM 136 20.5 387 2.87 5.36 5.50 2.05 687 198 8/4/07 8:54 AM 138 20.8 388 2.88 5.44 5.45 2.11 687 198 8/4/07 8:55 AM 116 17.5 388 2.89 5.34 5.20 2.15 687 198 8/4/07 8:56 AM 134 20.3 389 2.89 5.26 5.17 2.19 687 198 8/4/07 8:57 AM 164 24.8 389 3.03 5.17 5.23 2.20 687 198 8/4/07 8:58 AM 140 21.2 390 3.19 5.10 5.03 2.21 686 198 8/4/07 8:59 AM 119 18.1 388 3.18 5.28 5.06 2.22 687 198 8/4/07 9:00 AM 148 22.4 382 3.17 5.22 5.16 2.23 687 198 8/4/07 9:01 AM 150 22.7 381 3.19 5.28 5.20 2.24 687 198 8/4/07 9:02 AM 121 18.2 383 3.19 5.29 5.38 2.25 688 198 8/4/07 9:03 AM 131 19.7 385 3.02 5.29 5.52 2.27 688 198 8/4/07 9:04 AM 159 24.1 386 3.03 5.30 5.32 2.28 688 198 8/4/07 9:05 AM 142 21.5 388 3.05 5.40 5.12 2.29 689 198 8/4/07 9:06 AM 139 21.1 389 3.07 5.31 5.16 2.30 689 198 8/4/07 9:07 AM 153 23.2 390 3.09 5.42 5.19 2.31 689 198 8/4/07 9:08 AM 150 22.7 388 3.11 5.36 5.24 2.32 690 198 8/4/07 9:09 AM 125 18.9 387 3.13 5.45 5.11 2.33 690 198 8/4/07 9:10 AM 127 19.3 385 3.15 5.51 5.21 2.34 690 198 8/4/07 9:11 AM 150 22.6 384 3.17 5.34 5.32 2.35 691 198 8/4/07 9:12 AM 151 22.8 384 3.19 5.18 5.31 2.65 691 198 8/4/07 9:13 AM 124 18.8 386 3.21 5.16 5.34 2.93 691 198 8/4/07 9:14 AM 139 21.0 387 3.23 5.26 5.45 2.94 692 198 8/4/07 9:15 AM 149 22.5 389 3.25 5.33 5.40 2.95 692 198 8/4/07 9:16 AM 140 21.2 390 3.27 5.31 5.34 2.96 692 198 8/4/07 9:17 AM 127 19.2 390 3.29 5.25 5.21 2.97 693 198 8/4/07 9:18 AM 138 20.8 389 3.31 5.36 5.18 2.97 693 198 8/4/07 9:19 AM 148 22.4 389 3.33 5.28 5.15 2.98 693 198 8/4/07 9:20 AM 142 21.5 388 3.35 5.44 5.26 2.99 694 198 8/4/07 9:21 AM 132 20.0 388 3.37 5.49 5.50 3.00 694 198 8/4/07 9:22 AM 137 20.7 387 3.47 5.38 5.57 3.01 694 198 8/4/07 9:23 AM 143 21.6 389 3.61 5.33 5.45 3.02 695 198 8/4/07 9:24 AM 150 22.7 390 3.48 5.40 5.43 3.03 695 198 8/4/07 9:25 AM 154 23.3 390 3.60 5.53 5.47 3.04 695 198 8/4/07 9:26 AM 156 23.6 390 3.60 5.41 5.26 3.05 696 198 8/4/07 9:27 AM 157 23.8 389 3.55 5.24 5.18 3.06 696 198 8/4/07 9:28 AM 157 23.7 389 3.60 5.16 5.15 3.07 696 198 8/4/07 9:29 AM 151 22.8 389 3.55 5.28 5.34 3.08 697 198 8/4/07 9:30 AM 145 21.9 388 3.52 5.26 5.59 3.09 697 198 8/4/07 9:31 AM 143 21.6 388 3.81 5.33 5.53 3.10 697 198 8/4/07 9:32 AM 155 23.4 388 3.90 5.37 5.40 3.26 698 198 8/4/07 9:33 AM 144 21.7 388 3.84 5.34 5.36 3.82 698 198 8/4/07 9:34 AM 152 22.9 387 3.78 5.28 5.18 2.41 698 198 8/4/07 9:35 AM 154 23.2 387 3.75 5.44 4.97 1.76 699 198 8/4/07 9:36 AM 131 19.9 387 3.75 5.45 5.19 1.65 699 198 8/4/07 9:37 AM 153 23.2 386 3.76 5.38 5.39 1.66 699 198 8/4/07 9:38 AM 157 23.7 386 3.77 5.38 5.45 1.77 700 198 8/4/07 9:39 AM 151 22.8 386 3.78 5.34 5.35 1.89 700 198 8/4/07 9:40 AM 149 22.5 386 3.79 5.51 5.32 1.96 700 198 8/4/07 9:41 AM 152 22.9 385 3.80 5.27 5.20 2.01 701 198 8/4/07 9:42 AM 147 22.2 385 3.80 5.17 5.14 2.06 701 198 8/4/07 9:43 AM 133 20.1 385 3.81 5.18 5.25 2.11 701 198 8/4/07 9:44 AM 164 24.8 384 3.82 5.24 5.24 2.17 702 198 8/4/07 9:45 AM 159 24.1 384 3.83 5.21 5.18 2.22 702 198 8/4/07 9:46 AM 148 22.3 384 3.84 5.37 5.33 2.27 702 198 8/4/07 9:47 AM 152 23.0 384 3.85 5.43 5.50 2.32 703 198 8/4/07 9:48 AM 158 23.9 384 3.86 5.37 5.35 2.37 703 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 9:49 AM 164 24.8 384 3.87 5.22 5.24 2.37 703 198 8/4/07 9:50 AM 159 24.1 383 3.87 5.35 5.25 2.42 704 198 8/4/07 9:51 AM 149 22.6 383 3.88 5.49 5.24 2.43 704 198 8/4/07 9:52 AM 165 24.9 383 3.89 5.35 5.12 2.43 704 198 8/4/07 9:53 AM 162 24.4 383 3.90 5.36 5.22 2.44 705 198 8/4/07 9:54 AM 143 21.6 382 3.91 5.41 5.29 2.45 705 198 8/4/07 9:55 AM 133 20.1 382 3.92 5.35 5.26 2.46 705 198 8/4/07 9:56 AM 161 24.3 381 3.93 5.21 5.27 2.47 706 198 8/4/07 9:57 AM 157 23.7 381 3.94 5.17 5.20 2.48 706 198 8/4/07 9:58 AM 145 21.9 380 3.94 5.30 5.25 2.48 706 198 8/4/07 9:59 AM 151 22.8 379 3.95 5.33 5.44 2.49 707 198 8/4/07 10:00 AM 165 24.9 379 3.96 5.16 5.23 2.50 707 198 8/4/07 10:01 AM 158 23.8 378 3.97 5.32 5.28 2.51 707 198 8/4/07 10:02 AM 146 22.0 381 3.98 5.49 5.14 2.52 708 198 8/4/07 10:03 AM 153 23.2 384 3.99 5.46 5.33 2.53 708 198 8/4/07 10:04 AM 165 25.0 386 4.00 5.28 5.32 2.53 708 198 8/4/07 10:05 AM 172 26.0 387 4.01 5.41 5.51 2.54 709 198 8/4/07 10:06 AM 162 24.4 384 4.01 5.48 5.48 2.55 709 198 8/4/07 10:07 AM 153 23.1 381 4.02 5.41 5.36 2.56 709 198 8/4/07 10:08 AM 74 11.2 288 4.03 5.38 5.59 2.57 710 198 8/4/07 10:09 AM 9 1.4 43 4.03 5.56 6.52 2.58 676 198 8/4/07 10:10 AM 8 1.2 4 3.96 5.37 6.67 2.59 605 198 8/4/07 10:11 AM 7 1.0 1 3.91 4.97 5.93 2.59 534 198 8/4/07 10:12 AM 5 0.8 0 3.92 5.04 5.41 2.68 464 198 8/4/07 10:13 AM 4 0.6 0 3.94 5.15 5.21 2.76 412 198 8/4/07 10:14 AM 3 0.4 0 3.96 5.05 5.00 2.92 387 198 8/4/07 10:15 AM 2 0.3 0 3.97 4.88 5.00 2.66 363 198 8/4/07 10:16 AM 0 0.1 32 3.99 4.71 5.07 2.86 351 198 8/4/07 10:17 AM 7 1.1 311 3.98 4.91 5.20 3.00 381 198 8/4/07 10:18 AM 64 9.6 376 4.13 5.08 5.37 3.15 414 198 8/4/07 10:19 AM 152 23.0 344 4.38 5.11 5.53 3.16 448 198 8/4/07 10:20 AM 198 30.0 234 4.32 5.01 5.65 3.17 481 198 8/4/07 10:21 AM 139 20.9 319 4.34 5.01 5.62 3.18 503 198 8/4/07 10:22 AM 150 22.7 331 4.36 5.01 5.68 3.18 519 198 8/4/07 10:23 AM 151 22.8 335 4.37 5.00 5.62 3.19 535 198 8/4/07 10:24 AM 151 22.8 337 4.39 5.14 5.60 3.20 551 198 8/4/07 10:25 AM 150 22.6 341 4.41 5.04 5.66 3.20 567 198 8/4/07 10:26 AM 145 21.8 349 4.42 4.93 5.71 3.21 584 198 8/4/07 10:27 AM 148 22.4 353 4.44 4.90 5.85 3.22 600 198 8/4/07 10:28 AM 153 23.1 356 4.46 4.92 5.95 3.22 609 198 8/4/07 10:29 AM 158 23.9 359 4.47 4.87 5.89 3.23 610 198 8/4/07 10:30 AM 162 24.4 362 4.49 5.13 5.83 3.24 612 198 8/4/07 10:31 AM 154 23.2 365 4.51 5.18 5.68 3.25 613 198 8/4/07 10:32 AM 144 21.7 367 4.52 5.05 5.71 3.25 614 198 8/4/07 10:33 AM 142 21.5 371 4.54 4.90 5.88 3.26 616 198 8/4/07 10:34 AM 145 22.0 378 4.56 4.86 5.98 3.27 617 198 8/4/07 10:35 AM 146 22.0 382 4.58 5.02 5.92 3.27 619 198 8/4/07 10:36 AM 145 22.0 384 4.59 5.14 5.88 3.28 620 198 8/4/07 10:37 AM 152 22.9 385 4.61 5.11 5.80 3.29 622 198 8/4/07 10:38 AM 158 23.9 387 4.63 4.92 5.65 3.29 623 198 8/4/07 10:39 AM 163 24.6 389 4.64 5.09 5.83 3.30 625 198 8/4/07 10:40 AM 160 24.2 390 4.66 5.01 5.77 3.31 626 198 8/4/07 10:41 AM 157 23.7 390 4.68 4.82 5.83 3.30 628 198 8/4/07 10:42 AM 154 23.3 389 4.69 4.74 5.75 2.64 629 198 8/4/07 10:43 AM 151 22.8 389 4.20 5.02 5.68 2.31 631 198 8/4/07 10:44 AM 148 22.4 389 3.04 5.23 5.70 1.99 632 198 8/4/07 10:45 AM 149 22.5 389 3.01 5.07 5.69 1.78 633 198 8/4/07 10:46 AM 149 22.5 388 3.02 4.88 5.69 1.80 635 198 8/4/07 10:47 AM 149 22.6 388 3.02 4.87 5.70 1.83 636 198 8/4/07 10:48 AM 140 21.1 388 3.14 5.05 5.64 1.86 638 198 8/4/07 10:49 AM 140 21.1 387 3.51 5.11 5.68 1.88 639 198 8/4/07 10:50 AM 155 23.5 387 3.51 5.02 5.76 1.91 641 198 8/4/07 10:51 AM 158 23.9 387 3.50 4.92 5.71 1.94 642 198 8/4/07 10:52 AM 151 22.8 387 3.50 5.16 5.58 1.97 644 198 8/4/07 10:53 AM 144 21.8 388 3.50 5.05 5.44 2.00 645 198 8/4/07 10:54 AM 138 20.8 388 3.50 5.02 5.59 2.03 647 198 8/4/07 10:55 AM 135 20.4 389 3.50 5.04 5.59 2.06 648 198 8/4/07 10:56 AM 138 20.9 389 3.50 5.14 5.71 2.09 650 198 8/4/07 10:57 AM 128 19.4 390 3.50 4.96 5.63 2.26 651 198 8/4/07 10:58 AM 126 19.0 390 3.50 4.92 5.62 2.41 653 198 8/4/07 10:59 AM 134 20.2 390 3.50 4.85 5.51 2.53 654 198 8/4/07 11:00 AM 122 18.5 390 3.49 4.94 5.32 2.54 655 198 8/4/07 11:01 AM 120 18.1 390 3.49 5.17 5.44 2.55 657 198 8/4/07 11:02 AM 126 19.1 389 3.49 5.10 5.48 2.56 660 198 8/4/07 11:03 AM 121 18.3 389 3.49 5.11 5.49 2.57 662 198 8/4/07 11:04 AM 130 19.7 389 3.49 4.94 5.49 2.58 664 198 8/4/07 11:05 AM 139 21.0 389 3.75 5.02 5.32 2.59 666 198 8/4/07 11:06 AM 133 20.1 389 3.67 5.01 5.19 2.60 669 198 8/4/07 11:07 AM 125 18.9 389 3.82 5.14 5.24 2.60 671 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 11:08 AM 118 17.9 389 3.82 5.08 5.16 2.61 673 198 8/4/07 11:09 AM 122 18.4 389 3.92 5.18 5.30 2.62 676 198 8/4/07 11:10 AM 127 19.3 390 3.92 5.19 5.37 2.63 678 198 8/4/07 11:11 AM 130 19.6 390 3.93 5.02 5.38 2.64 680 198 8/4/07 11:12 AM 131 19.7 390 3.93 4.79 5.27 2.78 683 198 8/4/07 11:13 AM 133 20.2 389 3.93 4.91 5.39 2.91 685 198 8/4/07 11:14 AM 136 20.6 389 3.94 5.19 5.31 2.86 687 198 8/4/07 11:15 AM 136 20.6 389 3.94 5.23 5.03 2.87 689 198 8/4/07 11:16 AM 134 20.3 389 3.95 5.10 5.23 2.88 692 198 8/4/07 11:17 AM 132 20.0 389 3.95 4.96 5.35 2.89 694 198 8/4/07 11:18 AM 130 19.7 389 3.96 5.10 5.42 2.90 696 198 8/4/07 11:19 AM 128 19.4 389 3.96 5.20 5.39 2.91 699 198 8/4/07 11:20 AM 127 19.2 389 3.96 5.17 5.31 2.92 701 198 8/4/07 11:21 AM 129 19.5 389 3.97 5.03 5.20 2.93 703 198 8/4/07 11:22 AM 128 19.4 389 3.97 5.16 5.01 2.94 706 198 8/4/07 11:23 AM 113 17.0 388 3.98 5.13 5.17 2.95 708 198 8/4/07 11:24 AM 117 17.7 388 3.98 5.22 5.52 2.96 710 198 8/4/07 11:25 AM 125 18.9 388 3.98 5.18 5.67 2.97 712 198 8/4/07 11:26 AM 136 20.6 388 3.99 5.24 5.45 2.98 715 198 8/4/07 11:27 AM 147 22.3 388 3.99 5.07 5.46 2.99 717 198 8/4/07 11:28 AM 144 21.8 388 4.00 4.85 5.20 3.01 719 198 8/4/07 11:29 AM 138 20.9 388 4.00 4.80 5.14 3.08 722 198 8/4/07 11:30 AM 141 21.3 388 4.00 5.20 5.11 3.03 724 198 8/4/07 11:31 AM 147 22.2 388 4.01 5.36 5.33 2.21 726 198 8/4/07 11:32 AM 150 22.6 388 4.01 5.15 5.49 1.86 729 198 8/4/07 11:33 AM 151 22.8 388 4.02 4.96 5.32 1.69 731 198 8/4/07 11:34 AM 152 23.0 387 4.02 5.01 5.07 2.07 733 198 8/4/07 11:35 AM 153 23.1 387 4.02 5.12 5.08 2.15 735 198 8/4/07 11:36 AM 154 23.3 387 4.43 5.31 4.74 2.14 738 198 8/4/07 11:37 AM 155 23.5 387 4.28 5.14 4.90 2.13 740 198 8/4/07 11:38 AM 157 23.7 387 4.31 5.12 4.89 2.12 742 198 8/4/07 11:39 AM 158 23.8 387 4.36 5.15 5.27 2.12 743 198 8/4/07 11:40 AM 159 24.0 387 4.20 5.07 5.21 2.11 744 198 8/4/07 11:41 AM 160 24.2 387 4.47 5.19 5.04 2.10 745 198 8/4/07 11:42 AM 161 24.4 387 4.52 5.25 5.10 2.09 745 198 8/4/07 11:43 AM 162 24.5 387 4.51 5.13 4.90 2.08 746 198 8/4/07 11:44 AM 164 24.7 387 4.50 4.95 4.86 2.08 747 198 8/4/07 11:45 AM 165 24.9 386 4.48 4.85 5.12 2.50 748 198 8/4/07 11:46 AM 166 25.1 386 4.47 5.01 5.23 2.47 749 198 8/4/07 11:47 AM 167 25.2 386 4.45 5.39 5.18 2.48 750 198 8/4/07 11:48 AM 168 25.4 386 4.44 5.26 5.08 2.49 751 198 8/4/07 11:49 AM 169 25.6 386 4.43 5.13 4.91 2.50 751 198 8/4/07 11:50 AM 170 25.7 386 4.44 5.10 4.86 2.51 752 198 8/4/07 11:51 AM 170 25.7 387 4.44 5.22 4.88 2.52 753 198 8/4/07 11:52 AM 170 25.8 387 4.44 5.31 4.94 2.53 754 198 8/4/07 11:53 AM 171 25.8 388 4.45 5.26 5.09 2.54 755 198 8/4/07 11:54 AM 171 25.8 388 4.45 5.21 5.03 2.55 756 198 8/4/07 11:55 AM 171 25.8 388 4.45 5.26 5.00 2.56 757 198 8/4/07 11:56 AM 171 25.8 389 4.46 5.15 4.80 2.57 757 198 8/4/07 11:57 AM 171 25.8 389 4.46 5.20 4.74 2.58 758 198 8/4/07 11:58 AM 171 25.8 389 4.46 5.26 4.90 2.59 759 198 8/4/07 11:59 AM 171 25.8 390 4.47 5.13 4.73 2.60 760 198 8/4/07 12:00 PM 171 25.9 388 4.47 5.05 4.94 2.61 761 198 8/4/07 12:01 PM 171 25.9 384 4.47 5.02 4.86 2.62 762 198 8/4/07 12:02 PM 171 25.9 383 4.48 5.00 5.09 2.63 762 198 8/4/07 12:03 PM 171 25.9 383 4.48 5.24 5.17 2.64 763 198 8/4/07 12:04 PM 171 25.9 382 4.48 5.19 5.13 2.65 764 198 8/4/07 12:05 PM 172 25.9 382 4.49 5.11 4.96 2.81 765 198 8/4/07 12:06 PM 172 25.9 382 4.49 5.15 4.93 2.92 766 198 8/4/07 12:07 PM 172 25.9 382 4.49 5.13 4.70 2.93 767 198 8/4/07 12:08 PM 172 26.0 382 4.50 5.28 4.85 2.93 768 198 8/4/07 12:09 PM 172 26.0 382 4.50 5.31 4.83 2.94 768 198 8/4/07 12:10 PM 172 26.0 381 4.50 5.25 5.16 2.95 769 198 8/4/07 12:11 PM 172 26.0 381 4.51 5.36 5.10 2.96 770 198 8/4/07 12:12 PM 172 26.0 381 3.54 5.26 4.98 2.96 771 198 8/4/07 12:13 PM 172 26.0 382 2.55 5.08 4.83 2.97 772 198 8/4/07 12:14 PM 172 26.0 383 2.56 5.12 4.87 2.98 773 198 8/4/07 12:15 PM 172 26.0 384 2.58 5.19 5.01 2.99 773 198 8/4/07 12:16 PM 172 26.0 384 2.60 5.23 5.01 3.00 774 198 8/4/07 12:17 PM 172 26.0 384 2.61 5.12 5.03 3.00 775 198 8/4/07 12:18 PM 172 26.0 385 3.04 5.02 5.17 3.01 776 198 8/4/07 12:19 PM 172 26.0 386 3.02 5.20 5.19 3.02 777 198 8/4/07 12:20 PM 172 26.0 387 2.98 5.34 5.03 3.03 778 198 8/4/07 12:21 PM 172 26.0 388 2.98 5.20 5.00 3.03 778 198 8/4/07 12:22 PM 172 26.0 388 2.99 5.19 5.10 3.04 779 198 8/4/07 12:23 PM 172 26.0 389 3.00 5.25 5.04 3.05 779 198 8/4/07 12:24 PM 172 26.0 388 3.01 5.21 4.98 3.06 780 198 8/4/07 12:25 PM 172 26.0 387 3.01 5.21 4.89 3.17 780 198 8/4/07 12:26 PM 172 26.0 386 3.02 5.29 4.93 3.23 781 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 12:27 PM 172 26.0 386 3.03 5.38 5.17 3.15 782 198 8/4/07 12:28 PM 172 26.0 385 3.04 5.17 5.20 2.56 782 198 8/4/07 12:29 PM 172 26.0 385 3.05 4.84 5.12 2.03 783 198 8/4/07 12:30 PM 172 26.0 385 3.05 5.02 5.15 1.70 783 198 8/4/07 12:31 PM 172 26.0 385 3.06 5.41 5.24 1.79 784 198 8/4/07 12:32 PM 173 26.1 384 3.36 5.36 5.28 2.12 784 198 8/4/07 12:33 PM 174 26.2 384 3.33 5.17 5.28 2.11 785 198 8/4/07 12:34 PM 174 26.4 384 3.25 5.12 5.26 2.11 785 198 8/4/07 12:35 PM 175 26.5 385 3.42 5.27 5.21 2.10 786 198 8/4/07 12:36 PM 176 26.6 385 3.44 5.47 5.28 2.09 786 198 8/4/07 12:37 PM 176 26.6 387 3.46 5.29 5.32 2.08 787 198 8/4/07 12:38 PM 175 26.5 389 3.48 5.47 5.47 2.07 788 198 8/4/07 12:39 PM 174 26.4 391 3.50 5.45 5.42 2.07 788 198 8/4/07 12:40 PM 174 26.2 392 3.51 5.29 5.30 2.06 789 198 8/4/07 12:41 PM 173 26.1 392 3.53 5.35 5.20 2.05 789 198 8/4/07 12:42 PM 172 26.0 392 3.55 5.57 5.15 2.23 790 198 8/4/07 12:43 PM 171 25.9 392 3.57 5.47 5.18 2.41 790 198 8/4/07 12:44 PM 170 25.7 392 3.59 5.12 5.39 2.42 791 198 8/4/07 12:45 PM 169 25.6 391 3.61 5.07 5.52 2.42 791 198 8/4/07 12:46 PM 169 25.5 391 3.63 5.29 5.44 2.43 792 198 8/4/07 12:47 PM 168 25.4 391 3.64 5.39 5.30 2.44 792 198 8/4/07 12:48 PM 167 25.3 390 3.66 5.24 5.23 2.45 793 198 8/4/07 12:49 PM 167 25.2 390 3.68 5.28 5.20 2.46 793 198 8/4/07 12:50 PM 167 25.2 390 3.70 5.29 5.19 2.47 794 198 8/4/07 12:51 PM 166 25.1 389 3.72 5.34 5.30 2.48 795 198 8/4/07 12:52 PM 166 25.1 389 3.74 5.21 5.44 2.49 795 198 8/4/07 12:53 PM 167 25.3 389 3.75 5.37 5.39 2.50 796 198 8/4/07 12:54 PM 170 25.7 388 3.77 5.33 5.36 2.51 796 198 8/4/07 12:55 PM 173 26.1 388 3.79 5.14 5.34 2.52 797 198 8/4/07 12:56 PM 175 26.5 388 3.81 5.22 5.26 2.53 797 198 8/4/07 12:57 PM 178 26.9 387 3.83 5.42 5.12 2.54 798 198 8/4/07 12:58 PM 181 27.3 387 3.85 5.23 5.13 2.55 798 198 8/4/07 12:59 PM 184 27.8 387 3.86 4.98 5.43 2.56 799 198 8/4/07 1:00 PM 187 28.2 386 3.88 5.01 5.41 2.57 799 198 8/4/07 1:01 PM 190 28.7 386 3.90 5.25 5.48 2.76 800 198 8/4/07 1:02 PM 193 29.2 385 3.92 5.27 5.38 2.80 801 198 8/4/07 1:03 PM 194 29.4 385 3.94 5.20 5.24 2.83 801 198 8/4/07 1:04 PM 192 29.1 385 3.96 5.17 5.05 2.84 802 198 8/4/07 1:05 PM 191 28.8 384 3.97 5.23 5.09 2.85 802 198 8/4/07 1:06 PM 189 28.5 384 3.98 5.21 5.35 2.86 803 198 8/4/07 1:07 PM 187 28.2 384 3.98 5.23 5.50 2.87 803 198 8/4/07 1:08 PM 185 27.9 383 3.99 5.30 5.40 2.87 804 198 8/4/07 1:09 PM 183 27.7 383 3.99 5.42 5.30 2.88 804 198 8/4/07 1:10 PM 181 27.4 383 4.00 5.33 5.24 2.89 805 198 8/4/07 1:11 PM 179 27.1 382 4.01 5.25 5.32 2.90 805 198 8/4/07 1:12 PM 179 27.0 382 4.01 5.37 5.22 2.91 806 198 8/4/07 1:13 PM 181 27.4 382 4.02 5.22 5.38 2.92 806 198 8/4/07 1:14 PM 183 27.7 381 4.02 5.09 5.35 2.93 807 198 8/4/07 1:15 PM 186 28.1 382 4.03 4.98 5.47 2.93 808 198 8/4/07 1:16 PM 188 28.4 384 4.03 5.22 5.48 2.94 808 198 8/4/07 1:17 PM 191 28.9 386 4.04 5.24 5.45 2.95 809 198 8/4/07 1:18 PM 197 29.8 387 4.04 5.22 5.40 2.96 809 198 8/4/07 1:19 PM 204 30.8 387 4.05 5.15 5.44 2.97 810 198 8/4/07 1:20 PM 210 31.7 386 4.05 5.27 5.28 2.98 810 198 8/4/07 1:21 PM 210 31.7 386 4.06 5.28 5.33 2.98 811 198 8/4/07 1:22 PM 208 31.5 387 4.06 5.26 5.45 2.99 811 198 8/4/07 1:23 PM 207 31.2 387 4.07 5.25 5.43 3.00 812 198 8/4/07 1:24 PM 205 31.0 387 4.07 5.36 5.43 3.01 812 198 8/4/07 1:25 PM 204 30.8 387 4.08 5.35 5.29 3.02 813 198 8/4/07 1:26 PM 202 30.6 387 4.08 5.31 5.16 3.27 814 198 8/4/07 1:27 PM 203 30.6 387 4.09 5.19 5.23 3.24 814 198 8/4/07 1:28 PM 204 30.9 387 4.09 5.26 5.39 3.26 815 198 8/4/07 1:29 PM 205 30.9 386 4.10 5.10 5.45 3.20 815 198 8/4/07 1:30 PM 202 30.6 384 4.10 5.11 5.38 3.23 816 198 8/4/07 1:31 PM 199 30.1 383 4.11 5.17 5.41 2.66 816 198 8/4/07 1:32 PM 197 29.7 386 4.11 5.21 5.24 2.26 817 198 8/4/07 1:33 PM 196 29.6 388 4.12 5.24 5.17 1.86 817 198 8/4/07 1:34 PM 199 30.1 388 4.13 5.26 5.44 1.92 818 198 8/4/07 1:35 PM 203 30.7 387 3.60 5.19 5.41 1.93 818 198 8/4/07 1:36 PM 207 31.3 385 3.13 5.33 5.36 1.96 819 198 8/4/07 1:37 PM 208 31.4 387 3.15 5.29 5.47 1.98 819 198 8/4/07 1:38 PM 207 31.3 386 3.17 5.17 5.51 2.00 820 198 8/4/07 1:39 PM 215 32.5 385 3.18 5.21 5.40 2.02 821 198 8/4/07 1:40 PM 215 32.5 388 3.29 5.27 5.38 2.04 821 198 8/4/07 1:41 PM 215 32.5 388 3.46 5.38 5.34 2.07 822 198 8/4/07 1:42 PM 215 32.6 386 3.47 5.18 5.33 2.09 822 198 8/4/07 1:43 PM 214 32.4 387 3.48 5.07 5.26 2.11 823 198 8/4/07 1:44 PM 211 31.9 386 3.49 5.22 5.14 2.13 823 198 8/4/07 1:45 PM 208 31.4 386 3.50 5.21 5.31 2.15 824 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 1:46 PM 204 30.9 385 3.51 5.07 5.33 2.18 824 198 8/4/07 1:47 PM 202 30.5 389 3.52 5.15 5.37 2.20 825 198 8/4/07 1:48 PM 202 30.5 388 3.53 5.17 5.20 2.22 825 198 8/4/07 1:49 PM 201 30.4 387 3.54 5.39 5.13 2.24 826 198 8/4/07 1:50 PM 197 29.8 386 3.55 5.21 5.21 2.26 827 198 8/4/07 1:51 PM 193 29.1 386 3.56 5.29 5.23 2.29 827 198 8/4/07 1:52 PM 188 28.4 385 3.57 5.37 5.14 2.31 828 198 8/4/07 1:53 PM 184 27.7 385 3.58 5.29 5.02 2.33 828 198 8/4/07 1:54 PM 179 27.1 385 3.59 5.20 4.99 2.35 829 198 8/4/07 1:55 PM 175 26.4 385 3.60 5.35 5.12 2.37 829 198 8/4/07 1:56 PM 170 25.8 385 3.61 5.41 5.46 2.40 829 198 8/4/07 1:57 PM 166 25.1 384 3.61 5.21 5.40 2.42 828 198 8/4/07 1:58 PM 162 24.5 384 3.80 4.94 5.31 2.44 828 198 8/4/07 1:59 PM 165 24.9 384 3.91 5.16 5.21 2.46 827 198 8/4/07 2:00 PM 172 25.9 385 3.86 5.35 5.06 2.48 826 198 8/4/07 2:01 PM 175 26.4 385 3.81 5.20 4.94 2.50 826 198 8/4/07 2:02 PM 177 26.8 385 3.75 5.09 5.02 2.53 825 198 8/4/07 2:03 PM 180 27.3 385 3.92 5.26 4.94 2.55 824 198 8/4/07 2:04 PM 183 27.7 385 4.13 5.27 5.17 2.64 824 198 8/4/07 2:05 PM 186 28.1 385 4.14 5.31 5.35 2.74 823 198 8/4/07 2:06 PM 187 28.3 385 4.14 5.17 5.38 2.76 822 198 8/4/07 2:07 PM 184 27.7 385 4.14 5.28 5.46 2.97 822 198 8/4/07 2:08 PM 180 27.2 385 4.14 5.28 5.35 2.98 821 198 8/4/07 2:09 PM 177 26.8 385 4.14 5.17 5.24 2.98 820 198 8/4/07 2:10 PM 175 26.5 385 4.14 5.16 5.27 2.98 820 198 8/4/07 2:11 PM 173 26.2 385 4.15 5.36 5.17 2.99 819 198 8/4/07 2:12 PM 171 25.8 385 4.15 5.08 5.18 2.99 818 198 8/4/07 2:13 PM 169 25.5 385 4.15 4.85 5.39 3.00 817 198 8/4/07 2:14 PM 167 25.2 385 4.15 4.86 5.50 3.00 817 198 8/4/07 2:15 PM 165 24.9 384 4.15 5.13 5.54 3.01 816 198 8/4/07 2:16 PM 163 24.6 384 4.15 5.21 5.49 3.01 815 198 8/4/07 2:17 PM 164 24.8 384 4.16 5.05 5.39 3.02 815 198 8/4/07 2:18 PM 167 25.2 384 4.16 4.93 5.47 3.02 814 198 8/4/07 2:19 PM 169 25.5 384 4.16 5.11 5.44 3.03 813 198 8/4/07 2:20 PM 171 25.9 384 4.16 5.08 5.33 3.03 813 198 8/4/07 2:21 PM 174 26.3 385 4.16 5.03 5.27 3.04 812 198 8/4/07 2:22 PM 176 26.6 386 4.17 5.07 5.11 3.04 811 198 8/4/07 2:23 PM 179 27.0 388 4.17 5.08 5.05 3.05 811 198 8/4/07 2:24 PM 181 27.3 389 4.17 5.15 5.34 3.05 810 198 8/4/07 2:25 PM 183 27.7 388 4.17 5.15 5.55 3.06 809 198 8/4/07 2:26 PM 186 28.1 387 4.17 5.05 5.66 3.06 809 198 8/4/07 2:27 PM 188 28.4 387 4.17 4.97 5.68 3.07 808 198 8/4/07 2:28 PM 190 28.8 386 4.18 5.09 5.47 3.07 807 198 8/4/07 2:29 PM 194 29.3 386 4.18 5.08 5.36 3.08 807 198 8/4/07 2:30 PM 201 30.3 385 4.18 5.11 5.34 3.08 806 198 8/4/07 2:31 PM 196 29.7 384 4.18 4.97 5.23 3.09 805 198 8/4/07 2:32 PM 191 28.9 383 4.18 5.02 5.28 3.23 805 198 8/4/07 2:33 PM 192 29.0 382 4.19 5.15 5.15 2.85 804 198 8/4/07 2:34 PM 174 26.3 382 4.19 5.16 5.21 2.11 803 198 8/4/07 2:35 PM 180 27.2 381 4.19 5.06 5.41 1.92 803 198 8/4/07 2:36 PM 182 27.5 381 4.20 5.10 5.35 1.81 802 198 8/4/07 2:37 PM 180 27.3 382 3.31 5.22 5.19 1.77 801 198 8/4/07 2:38 PM 179 27.0 383 2.64 5.11 5.16 1.94 801 198 8/4/07 2:39 PM 177 26.8 382 2.67 5.11 5.15 1.93 800 198 8/4/07 2:40 PM 177 26.7 381 2.70 5.08 5.12 1.94 800 198 8/4/07 2:41 PM 176 26.6 380 2.74 5.28 5.17 1.96 799 198 8/4/07 2:42 PM 176 26.6 380 2.77 5.10 5.07 1.98 798 198 8/4/07 2:43 PM 176 26.5 381 2.94 4.85 5.07 2.00 798 198 8/4/07 2:44 PM 175 26.5 384 3.20 4.77 5.17 2.02 797 198 8/4/07 2:45 PM 175 26.5 383 3.22 5.19 5.14 2.04 796 198 8/4/07 2:46 PM 176 26.6 383 3.23 5.30 5.17 2.06 796 198 8/4/07 2:47 PM 177 26.7 383 3.24 5.18 5.28 2.08 795 198 8/4/07 2:48 PM 178 26.8 383 3.25 5.03 5.13 2.09 794 198 8/4/07 2:49 PM 178 27.0 382 3.26 5.19 4.98 2.12 794 198 8/4/07 2:50 PM 179 27.0 383 3.27 5.24 4.79 2.60 793 198 8/4/07 2:51 PM 178 26.8 384 3.28 5.24 4.88 2.61 793 198 8/4/07 2:52 PM 176 26.6 385 3.29 5.18 5.12 2.63 792 198 8/4/07 2:53 PM 175 26.4 386 3.30 5.32 5.36 2.65 791 198 8/4/07 2:54 PM 173 26.2 387 3.31 5.22 5.28 2.67 791 198 8/4/07 2:55 PM 172 25.9 388 3.32 5.20 5.20 2.69 790 198 8/4/07 2:56 PM 170 25.7 389 3.34 5.22 5.15 2.70 789 198 8/4/07 2:57 PM 169 25.5 390 3.35 5.35 5.11 2.72 789 198 8/4/07 2:58 PM 167 25.3 391 3.36 5.16 5.08 2.74 788 198 8/4/07 2:59 PM 166 25.1 392 3.37 4.96 4.98 2.76 787 198 8/4/07 3:00 PM 164 24.8 392 3.41 5.02 5.11 2.78 787 198 8/4/07 3:01 PM 163 24.6 392 3.37 5.30 5.38 2.79 786 198 8/4/07 3:02 PM 161 24.4 393 3.32 5.25 5.29 2.81 785 198 8/4/07 3:03 PM 160 24.2 392 3.33 5.15 5.32 2.83 785 198 8/4/07 3:04 PM 158 23.9 392 3.54 5.13 5.28 2.85 784 198

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 3:05 PM 157 23.7 391 3.45 5.22 5.18 2.87 784 198 8/4/07 3:06 PM 155 23.5 391 3.34 5.19 5.07 2.91 783 198 8/4/07 3:07 PM 154 23.3 391 3.52 5.24 5.03 2.90 782 198 8/4/07 3:08 PM 153 23.0 391 3.52 5.26 5.15 2.90 781 198 8/4/07 3:09 PM 151 22.8 391 3.52 5.38 5.41 2.91 780 198 8/4/07 3:10 PM 150 22.6 391 3.53 5.21 5.47 2.91 778 198 8/4/07 3:11 PM 148 22.4 391 3.53 5.13 5.33 2.92 777 198 8/4/07 3:12 PM 145 21.9 391 3.53 5.25 5.26 2.93 775 198 8/4/07 3:13 PM 134 20.2 391 3.53 5.26 5.11 2.93 773 198 8/4/07 3:14 PM 135 20.4 391 3.54 5.12 5.13 2.94 772 198 8/4/07 3:15 PM 136 20.5 392 3.54 5.03 5.38 2.94 770 198 8/4/07 3:16 PM 136 20.5 392 3.54 5.06 5.31 2.95 769 198 8/4/07 3:17 PM 136 20.6 393 3.54 5.21 5.26 2.95 767 198 8/4/07 3:18 PM 137 20.7 393 3.55 5.28 5.38 2.96 765 198 8/4/07 3:19 PM 138 20.8 391 3.55 5.18 5.17 2.97 764 198 8/4/07 3:20 PM 137 20.7 390 3.55 5.26 5.19 2.97 762 198 8/4/07 3:21 PM 135 20.4 388 3.55 5.28 5.22 3.12 760 198 8/4/07 3:22 PM 133 20.1 387 3.56 5.21 5.19 2.63 759 198 8/4/07 3:23 PM 143 21.6 385 3.56 5.24 5.17 2.16 757 198 8/4/07 3:24 PM 142 21.4 384 3.56 5.25 5.19 1.82 756 198 8/4/07 3:25 PM 138 20.9 385 3.56 5.37 5.19 1.85 754 198 8/4/07 3:26 PM 135 20.4 386 3.57 5.28 5.34 2.00 752 198 8/4/07 3:27 PM 132 19.9 387 3.57 5.10 5.33 2.01 751 198 8/4/07 3:28 PM 130 19.7 387 3.57 5.07 5.28 2.02 749 198 8/4/07 3:29 PM 130 19.7 388 3.57 5.17 5.48 2.03 747 198 8/4/07 3:30 PM 130 19.7 389 3.58 5.21 5.29 2.04 746 198 8/4/07 3:31 PM 130 19.7 390 3.58 5.12 5.25 2.06 744 198 8/4/07 3:32 PM 128 19.4 391 3.91 5.07 5.46 2.07 743 198 8/4/07 3:33 PM 125 18.8 391 3.89 5.05 5.33 2.38 741 198 8/4/07 3:34 PM 107 16.2 391 3.87 5.28 5.44 2.43 739 198 8/4/07 3:35 PM 115 17.4 391 3.86 5.21 5.34 2.47 738 198 8/4/07 3:36 PM 123 18.6 391 3.84 5.23 5.37 2.51 736 198 8/4/07 3:37 PM 131 19.8 391 3.82 5.28 5.38 2.55 735 198 8/4/07 3:38 PM 133 20.1 391 3.81 5.19 5.38 2.59 733 198 8/4/07 3:39 PM 131 19.7 392 3.79 5.18 5.34 2.63 731 198 8/4/07 3:40 PM 128 19.3 392 3.77 5.23 5.41 2.67 730 198 8/4/07 3:41 PM 125 18.9 392 3.75 5.39 5.38 2.71 728 198 8/4/07 3:42 PM 121 18.3 392 3.74 5.31 5.23 2.75 726 198 8/4/07 3:43 PM 117 17.7 392 3.94 4.99 5.39 2.76 725 198 8/4/07 3:44 PM 114 17.2 392 3.96 4.81 5.35 2.69 723 198 8/4/07 3:45 PM 111 16.8 393 3.92 5.28 5.25 2.73 722 198 8/4/07 3:46 PM 102 15.4 393 3.88 5.34 5.20 2.77 720 198 8/4/07 3:47 PM 113 17.1 392 3.84 5.15 5.21 2.81 718 198 8/4/07 3:48 PM 124 18.8 391 3.83 5.12 5.20 2.85 717 198 8/4/07 3:49 PM 127 19.2 389 3.97 5.24 5.35 2.89 715 198 8/4/07 3:50 PM 132 20.0 388 3.96 5.25 5.39 2.93 714 198 8/4/07 3:51 PM 113 17.1 390 3.96 5.25 5.32 2.97 712 198 8/4/07 3:52 PM 125 18.9 390 3.96 5.24 5.18 3.01 710 198 8/4/07 3:53 PM 135 20.3 388 3.96 5.33 5.20 3.05 709 198 8/4/07 3:54 PM 133 20.1 386 3.96 5.21 5.18 3.10 707 198 8/4/07 3:55 PM 130 19.7 385 3.96 5.07 5.12 3.14 707 198 8/4/07 3:56 PM 127 19.2 386 3.99 5.29 5.22 3.18 706 198 8/4/07 3:57 PM 124 18.7 388 4.20 5.45 5.22 3.22 705 198 8/4/07 3:58 PM 119 17.9 389 4.20 5.10 5.19 3.20 705 198 8/4/07 3:59 PM 123 18.6 388 4.20 4.88 5.27 2.63 704 198 8/4/07 4:00 PM 111 16.7 390 4.21 5.01 5.33 2.06 703 198 8/4/07 4:01 PM 104 15.8 393 4.21 5.19 5.22 1.84 702 199 8/4/07 4:02 PM 114 17.2 395 4.21 5.28 5.17 2.03 702 199 8/4/07 4:03 PM 124 18.8 395 4.21 5.13 5.17 2.48 701 199 8/4/07 4:04 PM 100 15.2 395 4.21 5.15 5.20 1.92 700 199 8/4/07 4:05 PM 103 15.6 394 4.21 5.18 5.29 1.92 700 199 8/4/07 4:06 PM 106 16.1 394 4.21 5.14 5.34 1.92 699 199 8/4/07 4:07 PM 109 16.5 394 4.21 5.21 5.20 1.93 698 199 8/4/07 4:08 PM 112 16.9 394 4.21 5.25 5.16 1.98 697 199 8/4/07 4:09 PM 112 17.0 394 4.21 5.28 5.02 2.03 697 199 8/4/07 4:10 PM 112 16.9 393 4.21 5.18 5.10 2.09 696 199 8/4/07 4:11 PM 112 16.9 393 4.21 5.09 5.45 2.14 695 199 8/4/07 4:12 PM 111 16.8 393 4.21 5.12 5.58 2.20 695 199 8/4/07 4:13 PM 104 15.7 393 4.22 5.11 5.42 2.25 694 199 8/4/07 4:14 PM 99 14.9 393 4.22 5.01 5.32 2.31 693 199 8/4/07 4:15 PM 111 16.8 393 4.22 4.98 5.17 2.36 692 199 8/4/07 4:16 PM 117 17.6 392 4.22 4.95 5.16 2.41 692 199 8/4/07 4:17 PM 105 15.9 392 4.22 5.13 5.20 2.43 691 199 8/4/07 4:18 PM 105 15.9 392 4.22 5.21 5.30 2.44 690 199 8/4/07 4:19 PM 107 16.2 392 4.22 5.24 5.43 2.46 690 199 8/4/07 4:20 PM 138 20.9 392 4.22 5.06 5.45 2.48 689 199 8/4/07 4:21 PM 117 17.7 392 4.22 5.13 5.29 2.49 688 199 8/4/07 4:22 PM 98 14.8 392 4.22 5.12 5.36 2.51 687 199 8/4/07 4:23 PM 103 15.5 392 4.22 5.17 5.26 2.52 687 199

### Mill 1 Stack Compliance Test (Method 29)

Date & Time Propane Flow (CFM) MMBtu/hr Mill Feed (tph) Envi. BH DP (inch H2O) Dynamic BH DP (inch H2O) Static BH DP (inch H2O) Reclm BH (inch H2O) Burner temp (oF) Static recycle air (oF)

8/4/07 4:24 PM 111 16.8 392 4.22 5.12 5.15 2.54 686 199 8/4/07 4:25 PM 120 18.1 392 4.23 5.24 5.24 2.56 685 199 8/4/07 4:26 PM 122 18.5 392 4.23 5.27 5.22 2.57 685 199 8/4/07 4:27 PM 103 15.6 392 4.23 5.02 5.21 2.59 684 199 8/4/07 4:28 PM 96 14.5 392 4.23 4.73 5.48 2.60 683 199 8/4/07 4:29 PM 122 18.5 392 4.23 5.01 5.36 2.62 682 199 8/4/07 4:30 PM 110 16.6 392 4.22 5.36 5.15 2.63 682 199 8/4/07 4:31 PM 78 11.7 392 2.90 5.19 5.19 2.81 681 199

# APPENDIX D

LABORATORY ANALYTICAL DATA

# APPENDIX E
EQUIPMENT CALIBRATION FORMS

# APPENDIX F

TEST PROTOCOL AND CORRESPONDENCE

# Test Protocol

Mercury Emissions Evaluation Program for Systems 15 and 16 Barrick Goldstrike Mines Inc. Eureka County, Nevada

Prepared for:



### Barrick Goldstrike Mines Inc. P.O. Box 29 Elko, Nevada 89803

Prepared by:



### TRC Companies, Inc. 6672 Boulder Highway, Suite 5 Las Vegas, Nevada 89122



# May 2007TRC Project No. 116218

May 2007



### Test Protocol

Mercury Emissions Evaluation Program for Systems 15 and 16 Barrick Goldstrike Mines Inc. Eureka County, Nevada

Prepared for

Barrick Goldsrike Mines Inc. P.O. Box 29 Elko, Nevada 89803 (775) 778-8265

Prepared by

TRC Companies, Inc. 6672 Boulder Highway, Suite 5 Las Vegas, Nevada 89122 (702) 437-5800

DISCLAIMER

This document is intended for use solely by Barrick Goldstrike Mines Inc. (Barrick) for the specific purposes described in the contractual documents between TRC Environmental Corporation (TRC) an d Barrick. All prof essional services performed and reports generated by TRC have been prepared for Barrick's purposes as described in the contract. The information, statements and conclusions contained in the document have been prepared in accordance with the work statement and contract terms and conditions. The document may be subject to differing interpretations and/or may be misinterpreted by third persons or entiti es who were not involved in the invest igative or consultation process. TRC Environmental Corporation therefore expr essly disclaims any liability to person s other than Barrick who may use or rely upon this document in any way or for any purpose.TABLE OF CONTENTS

Section Page

L2007-256 ii 1.0 INTRODUCTION............................................................................................................. 1

1.1 OVERVIEW ................................................................................................................... 1 1.2 SCOPE OF WORK......................................................................................................... 1

2.0 PROJECT OVERVIEW .................................................................................................. 3

2.1 PROJECT ORGANIZATION ........................................................................................ 3 2.2 PROJECT SCHEDULE.................................................................................................. 3

2.2.1 Program Design .......................................................................................................... 3 2.2.2 Field Test ............................................................................................................... ..... 3 2.2.3 Post-Test ................................................................................................................ ..... 3

3.0 PROCESS DESCRIPTION ............................................................................................. 4

3.1 INTRODUCTION .......................................................................................................... 4 3.2 SAMPLING LOCATIONS ............................................................................................ 4

4.0 SAMPLING PROCEDURES .......................................................................................... 5

4.1 OVERVIEW ................................................................................................................... 5 4.2 FIELD PROGRAM DESCRIPTION ............................................................................. 5 4.3 PRESAMPLING ACTIVITIES...................................................................................... 6

4.3.1 Equipment Calibration................................................................................................ 6 4.3.2 Glassware Preparation ................................................................................................ 7 4.3.3 Sample Media Preparation.......................................................................................... 7 4.4 ONSITE SAMPLING ACTIVITIES.............................................................................. 8

4.4.1 EPA Methods 1 and 2 for Velocity Measurements and Cyclonic Flow..................... 8 4.4.2 EPA Method 3 or 3A for Molecular Weight Determination ...................................... 8 4.4.3 EPA Method 4 for Moisture Determination ............................................................... 9 4.4.4 ASTM D6784 Ontario Hydro Method for Mercury Emissions.................................. 9 4.4.5 Process Sampling and Monitoring............................................................................ 11

5.0 ANALYTICAL PROCEDURE S AND CALCULATIONS ........................................ 13

5.1 ANALYTICAL PROCEDURES.................................................................................. 13 5.2 CALCULATIONS........................................................................................................ 13

5.2.1 Flow Rates and Isokinetics ....................................................................................... 13 5.2.2 Pounds Per Hour - Particle Bound, Oxid ized, Elemental and Total Mercury Concentrations ................................................................................................................. ...... 16

6.0 QUALITY ASSURANCE .............................................................................................. 17

6.1 OVERVIEW ................................................................................................................. 17 6.2 FIELD QUALITY CONTROL SUMMARY............................................................... 17

6.2.1 Calibration Procedures.............................................................................................. 17 6.2.2 Equipment Leak Checks ........................................................................................... 17 6.2.3 Cyclonic Flow Check................................................................................................ 18 6.3 DATA REDUCTION, VALIDATION, AND REPORTING ...................................... 18TABLE OF CONTENTS

Section Page

L2007-256 iii 6.3.1 Field Data Reduction ................................................................................................ 18 6.3.2 Data Validation ......................................................................................................... 1 8 6.3.3 Data Repo rting.......................................................................................................... 1 9 6.4 EXCEPTIONS .............................................................................................................. 19

Appendices

A Equipment Calibration Forms B Field Sampling Data SheetsL2007-256 1 1.0 INTRODUCTION

1.1 OVERVIEW

Barrick Goldstrike Mines Inc. (Barrick) is to perform mercury (Hg) emissions testing on the

Roaster Mill Circuit and associat ed support systems (Systems 15 a nd 16) at the Ba rrick facility in Carlin, Eureka County, Neva da in support of the Nevada Department of Environmental Protection (NDEP), Ne vada Mercury Control Program (NMCP).

TRC Companies, Inc. (TRC) has been retained by Barrick to provide sampling and analytical support for the NMCP. TRC will support and manage the test program from the Las Vegas, Nevada office. TRC has prepared the follow ing testing protocol to satisfy the testing requirements for the Mercury Emissions Evaluation Test Pr ogram required by NDEP. The purpose of the testing for the Roaster and associated support systems is to test Systems 15 and 16

– Roaster Mill Circuit – Mills 1 and 2 Air Preheater and Dry Grinding Pro cess Baghouse stacks under steady-state conditions, to determine Hg emissions.

Sampling and analysis procedures described in this document will be conducted using procedures deemed acceptable by the NDEP and the United Stat es Environmental Protection Agency (USEPA). TRC will be responsible for the collection a nd analysis of all flue gas samples.

1.2 SCOPE OF WORK

The compliance program will consist of a series of three 2-hour te st runs at the outlet of each location utilizing test method ASTM D6784 (Ontar io Hydro Method). Tes ting will be conducted while the units are operating under steady-state conditions. Each test run will determine the concentrations of oxygen (O 2 ), carbon dioxide (CO 2 ), Hg, velocity and mo isture at each outlet

location.

Triplicate test runs will be condu cted for all parameters. The fo llowing presents a summary of the test parameters, test methods and run times.L2007-256 2 Source Test Parameter Test Method Run Time (minutes) Systems 15 and 16 Dry Grinding Processes Flows and Moisture EPA Methods 1 - 4

O 2 / CO 2 EPA Methods 3/3A 60

Mercury ASTM D6784 120

The required measurement parameters and test methods to accomplish these test objectives are as

follows: • 40 CFR Part 60, Appendix A, EPA Methods

· Methods 1 & 2 - Velocity and Flow Rate · Method 3A - Oxygen and Carbon Dioxide · Method 4 - Moisture

• ASTM D6784 - Hg (Ontario Hydro Method)L2007-256 3 2.0 PROJECT OVERVIEW

2.1 PROJECT ORGANIZATION

The project will be under the general direction of Mr. Tim Senger of TRC' s Las Vegas, Nevada’s office. Mr. Senger will oversee the QA/QC aspects of the test program. TRC will provide field staff from the Las Vegas office to complete the sampling program.

2.2 PROJECT SCHEDULE

TRC's project schedule for the test program is set up in three phases . Phase One includes program design and pre-sampling activities (pre-tes t). Phase Two is the field test, and Phase Three is post sampling and re port generation (post-test).

2.2.1 Program Design

During the program design portion of the program, all project management and sampling details are defined. Responsibilities are assigned to the respective qualified team members who will then prepare for the program to ensure a successf ul test. The test pr otocol is written and approved. Equipment-related pr e-sampling activities, including calibrations, will take place prior to transporting the eq uipment to the test site.

2.2.2 Field Test

TRC plans to conduct th e field sampling program in two 10- hour test days in July 2007.

2.2.3 Post-Test

Post-test activities will include da ta reduction, QA/QC of all fiel d data, and the final report.L2007-256 4 3.0 PROCESS DESCRIPTION

3.1 INTRODUCTION

Barrick Goldstrike Mines Inc. operates a gold producing mine on property located in Eureka County, Nevada. There are proces sing plants located on the property whic h separate the gold

from the recovered ore. Pa rt of this mining process utilizes Systems 15 and 16.

3.2 SAMPLING LOCATIONS

System 15 is equipped with one exhaust stack. Emissions from the Roaster Mill Circuit, Mill #1 Pre-heater and Dry Grinding proc ess will each be controlled by two (2) quad-chamber product recovery baghouses (DC-204.1 and DC-204.2) and one pick-up ba ghouse (DC-205).

System 16 is also equipped wi th one exhaust stack. Emission s from the Roaster Mill Circuit, Mill #2 Pre-heater and Dry Gri nding process will each be contro lled by two (2) quad-chamber product recovery baghouses (D C-206.1 and DC-206.2) and one pick-up baghouse (DC-207).

The procedures specified by EPA Method 1, " Sample and Velocity Traverses for Stationary

Sources ", will be followed to determine the number and location of traverse po ints to be used for the stratification testing and velocity traverses. The number of straig ht run stack diameters (equivalent diameters) upstre am and downstream from the samp le ports will be used to

determine the minimum number of traverse points required.

Additional detail will be provided for each sy stem in the Final Repor t, including diameters upstream and downstream, internal diameters of each exhaust stream, sampling point locations and distances, and photogra phs of sampling locations.L2007-256 5 4.0 SAMPLING PROCEDURES

4.1 OVERVIEW

This section describes the procedures that T RC will follow during the field sampling program. Throughout the program TRC will follow EPA Methods 40 CFR Part 60 Appendix A sampling procedures, and an ASTM method for mercury emissions sampling.

.

The remainder of this section is divided into several subsections: Field Program Description; Pre-sampling Activities; a nd Onsite Sampling Activities.

4.2 FIELD PROGRAM DESCRIPTION

The field sampling will be condu cted by TRC over a three-da y period. On the first day equipment will be set up and pr eliminary measurements will be made. On the following days, TRC will collect samples for the parame ters listed below on the permitted units:

O 2 , CO 2 Velocity and Percent Moisture Mercury

TRC personnel will use the following EPA Methods as listed in 40 CFR Part 60, Appendix A,

and an ASTM method to de termine mercury emissions:

• EPA Method 1 Sample Velocity Traverse for Stat ionary Sources

• EPA Method 2 Determination of Stack Gas Velocity and Volumetric Flow Rate (Type S pitot tube)

• EPA Method 3A Determination of Oxygen and Carbon Dioxide Concentrations in Emissions from Stationary Sources (Instrumental Analyzer Procedure)

• EPA Method 4 Determination of Moisture Content in Stack Gases

• ASTM D6784 Determination of Mercury (Ontario Hydro Method)L2007-256 6 4.3 PRESAMPLING ACTIVITIES

Presampling activities in clude equipment calibrati on, precleaning of the samp le train glassware,

and other miscellaneous tasks. Each of these activities are described or referenced in the following subsections. Other pres ampling activities in clude team meetings, equipment packing,

and finalization of all details le ading up to the coordinated initia tion of the sampling program.

4.3.1 Equipment Calibration

TRC follows an orderly program of positive acti ons to prevent the failure of equipment or instruments during use. This preventative main tenance and careful calib ration helps to ensure

accurate measurements from fiel d and laboratory instruments.

Once the equipment has gone thr ough the cleaning and repair proc ess it is then calibrated. All equipment that is scheduled for field use is cleaned and checked prior to calibra tion. Once the equipment has been calibrated, it is packed and stored to ensure the integrity of the equipment.

Inspection and calibration of th e equipment is a crucial step in ensuring the successful completion of the field effort. All equipment will be inspected for proper operation and durability prior to calibration. Calibration of the following equipment w ill be conducted in accordance with the procedures outlin ed in EPA documen ts entitled " Quality Assurance
Handbook for Air Pollution Measur ement Systems; Volume II I - Stationary Source Specific

Methods " (EPA-600/4-77-027b) and 40 CFR Part 60 A ppendix A. All calibrations will be performed prior to the test program.

• Probe Nozzles (QA Handbook, Vol III, Section 3.4.2, pp. 19) - average three internal diameter measurements of the nozzle; difference between high and low

 0.1 mm. Recalibrate, reshape and sharpe n when nozzle becomes nicked, dented or corroded.

• Pitot tubes (QA Handbook Vol III, Section 3.1.2, pp. 1-13) - measured for appropriate spacing and dimensions or ca librated in a wind tunnel. Rejection criteria is given on the calibration sheet . A post-test check will inspect for damage.L2007-256 7 • Thermocouples (QA Handbook, Vol III, Section 3.4.2, pp. 12-18) – verified against a mercury-in-glass thermometer at three points including the anticipated measurement range. Acce ptance limits - impinger + 2oF; DGM + 5.4oF; stack + 1.5 percent of stack temperature.

• Dry gas meters (EPA 40 CFR Part 60, Me thod 5, Section 5.3) - calibrated against a wet test meter. Accep tance criteria - pretest Y i = Y = + 0.02; post test Y = + 0.05 Y i .

• Orifice meter calibrated against a wet test meter. Acceptance criteria is ∆ H@ i = + 0.2 from the average value.

• Field barometer (QA Handbook, Vol III, Section 3.4.2, pp. 18-19) – compared against a mercury-in-glass barometer or use Airport Station BP and correct for elevation. Acceptance criteria -

 0.02 in. Hg; post-test check will be the same.

• Analytical balances (QA Handbook, Vol III, Section 3.4.2, pp. 19) – Acceptance criteria - calibrate with Stan dard Class-S weights within

 0.5 mg of stated value. Corrective action: Have manuf acturer recalibrate or adjust.

4.3.2 Glassware Preparation

Sample train glassware will require specialized precleaning to avoi d contamination of the sample

from the collection container or devices. The sample train glas sware necessary for the ASTM
D6784 sampling train will be precleaned using an Alconox ® soap and water wash. Deionized
water will be used for rinsing fo llowed by air-drying. Th e glassware will then be soaked in nitric acid bath (10% nitric acid) fo llowed again by a deionized wate r rinse followed by air-drying.
The glassware will be then sealed with Parafilm ®

.

4.3.3 Sample Media Preparation

All reagents will be checked in accordance with the TRC’s exis ting QC Program to minimize the probability of using cont aminated solvents. This includes the use of spectro-grade acids and

solvents from the same lot and th e collection and analysis of the appropriate blanks. All filters

will be desiccated and we ighed to the nearest 0.5 mg constant weight.L2007-256 8 4.4 ONSITE SAMPLING ACTIVITIES

Onsite sampling activities will include the emissions testing of the previously mentioned outlet

stacks and collection of operational data.

4.4.1 EPA Methods 1 and 2 for Velocity Measurements and Cyclonic Flow

Velocity traverses will be condu cted on the outlet stack with an S-type pitot assembly in

accordance with EPA Reference Methods 1 and 2. An S-type pitot tube with an attached

inclined manometer will be used to measure the exhaust veloci ties from the sampling location. An attached Type-K thermocouple with remote digi tal display will be used to determine the flue gas temperature. During the test program, velocity measurements will be conducted during each EPA Methods 5/202 sampling test run. The requir ed number of velocity measurements points for each sampling location will be de termined following EPA Method 1.

Cyclonic flow checks will be conducted at th e sampling location in accordance with Section 2.4 of EPA Method 1. This procedure is referred to as the nulling technique. An S-type pitot tube

connected to an inclined manom eter will be used in this me thod. The pitot tube will be positioned at each traverse point so that the face openings of the pitot tube are pe rpendicular to
the stack cross-sectional plane. This position is called the "0 ° reference". The velocity pressure
( Δ P) measurement is noted. If the Δ P reading is zero, the cycloni c angle is recorded as 0 ° . If the

Δ P reading is not zero, the pito t tube is rotated clockwise or counter clockwise until the Δ P reading becomes zero. This angle is then measured with a leveled protractor and reported to the nearest degree. After this null technique is applied at each trav erse point, the average of the
cyclonic angles is calculated. If this average is less than 20 ° , the flow condition is acceptable to

test.

4.4.2 EPA Method 3 or 3A for Mole cular Weight Determination

TRC will conduct monitoring and analysis for oxygen (EPA Methods 3/ 3A) and carbon dioxide (EPA Methods 3/3A) by utilizing a Continuous Emissions Monitoring System (CEMS) orL2007-256 9 ORSAT analyzer for these measurements.

4.4.3 EPA Method 4 for Moisture Determination

Moisture will be determined for each test run according to EPA Reference Method 4,

" Determination of Moisture Content in Stack Gases ". The principle of th is method is to remove the moisture from the sample stream and de termine moisture either volumetrically or gravimetrically. Sampling will be conducted in conjunction with EPA Method 101A, EPA
Method 29, or ASTM D6784 sampling test runs.

4.4.4 ASTM D6784 Ontario Hydro Method for Mercury Emissions

Speciated mercury (Hg) will be determined via ASTM D6784 “ Test Method for Elemental,
Oxidized, Particle Bound, and Tota l Mercury Emissions in the Fl ue Gas Generated from Coal
Fired Stationary Sources (Ontario Hydro Method)”

.

The sampling train will utilize the EPA Method 29 sampling configuration and consist of a quartz button-hook nozzle, qu artz lined heated probe, and heated filter housing. A thermocouple and S-type pitot tube will be at tached to the probe for the measurement of gas temperature and velocity.

The sample gas will pass through the probe and filter assembly and will be connected to an impinger train. The impinger train will consist of a series of eight-ice bath cooled impingers,
kept below 68 ° F to enable condensation of entrained moisture and th e gaseous mercury species.
The first, second and third impingers will each co ntain 100 mL of a 1N KCl solution. The fourth impinger will contain 100 mL of a 5% HNO 3 /10% H 2 O 2 solution. The fift h, sixth, and seventh impingers each will contai n 100 mL of a 4% KMnO 4 /10% H 2 SO 4 solution. The eighth impinger will contain 200 - 400 grams of sili ca gel. All filled impingers w ill be weighed prior to placing the impingers in the train. Th e impingers will be followed by a leak free pump, dry gas meter,

and calibrated orifice meter.

The first, second, fourth, sixth, and eighth impingers wi ll be the modified Greenburg design.L2007-256 10 The third, fifth and seventh imping ers will be standard Greenburg Smith impingers. No silicone grease will be used in the train.

TRC will conduct three ASTM D6784 test runs on each source, with each test run having

duration of 120 minutes. Sampling w ill be isokinetic ( ± 10%) and all stack a nd train operating
parameters will be recorded at each sampling point.

Leak checks of the entire Ontario Hydro samplin g train will be performed before and after each sampling run. All leak checks a nd leakage rates will be document ed on the relevant field test
data sheets. The acceptance criterion will be a post run leak rate of ≤ 0.02 cfm at the highest
vacuum obtained during the test run. The pre run leak ch eck criterion will be ≤ 0.02 cfm at 15 in
Hg.

Following the completion of each te st run, the Ontario Hydro trai n will be transported to a recovery area onsite. The sample re covery sequence will be as follows:

• All openings on the probe, inlet to cyclone/or fi lter holder and impingers will be sealed with Teflon ® tape.

• The sampling train will be re moved to the recovery area.

• The condition of the train will be noted (i.e., filter, impinger cont ents color, silica gel color, etc.).

• Container No. 1 - Disassemble th e filter housing and transfer th e filter to its original glass petri dish. Seal the petri dish with Teflon ® tape and label it with the appropriate sample information. Any filter fibers adhering to the support gasket will be transferred to the petri dish.

• Container No. 2 - The front half of the train, nozzle, prob e, and front-half filter housing, cyclone and flask will be brush- rinsed with 100 mL of 0.1N nitr ic acid into an amber glass container with a Teflon ® -lined cap. The container will be sealed and labeled.

• Container No. 3 - The contents of the three KCl impingers will be weighed. The filter support, backhalf of the filter holder and connecting glassware will be rinsed with 0.1N HNO 3 into a glass amber container with a Teflon ® lined cap. The 5% KMNO 4 solution will be added to each impinger until a purple color remains. The solutions will then be poured into the container. The impingers and conn ecting glassware will be rinsed with 10% HNO 3
. Although unlikely, if deposits remain on the im pinger surfaces, they will be removed byL2007-256 11 doing another 10% HNO 3 rinse that has a very small amount (several drops) of 10% hydroxylamine sulfate solution added to each of the KCl impingers. Th ese rinses will be added to Container 3. If the solution in Contai ner 3 becomes clear, a small amount of the 5% KMnO 4 solution will be added until a pink or slightly purple colo r is obtained. Check again after 90 minutes to ensure that the purple color remains. Perform a final rinse of the impingers and connecting glassware with 0.1N HNO 3 and add this rinse to Container 3. The container will be sealed and labeled.

• Container No. 4 - The conten ts of the f ourth 5% HNO 3 /10% H 2 O 2 impinger will be weighed and transferred to a glass amber container with a Teflon ® -lined cap. The impinger and Utubes will be rinsed twice with three 25 mL portions of 0.1N nitric acid into a sample container. The container will be sealed and labeled.

• Container No. 5 (Impi ngers 5 through 7, H 2 SO 4 /KMnO 4 Impinger Conten ts and Rinses) - Dry the exterior surfaces of Im pingers 5, 6, and 7, then weigh a nd record the weight of each impinger (to the n earest 0.5 g). Pour all of the liquid from the three H 2 SO 4 -KMnO 4 impingers into a glass sample, Container 5. Rinse the impingers a nd connecting glassware with a 0.1N HNO 3 . If deposits remain on the impinger su rfaces, after the two rinses, remove them by doing a third rinse with 0.1N HNO 3 and several drops hydroxylamine sulfate. On a drop-by-drop basis add more hydroxylamine su lfate until the deposits are removed. Add these rinses to Container 5. If the solution in Container 5 becomes clear, add small amounts of H 2 SO 4 -KMnO 4 solution until a pink or slightly purpl e color is obtained. Perform a final 0.1N HNO 3 rinse of the impingers and connecting gl assware followed by a water rinse. The 0.1N HNO 3 rinse is added to Container 5, and the water rinse will be discarded. The container will be sealed and labeled.

• The silica gel impinger will be weig hed to obtain a final weight.

• All containers will be checked to ensure proper sealing, prop er labeling, and that all liquid levels are marked. All samples will be logged onto a chain-of-custody record.

The Ontario Hydro train will produce the following samples:

• Container No. 1 - Filter

• Container No. 2 - Front-Half 0.1N HNO 3 Rinse

• Container No. 3 - Impingers 1, 2 & 3 - KCl Impingers Catch & Rinse

• Container No. 4 - Impinger 4 - 5% HNO 3 /10% H 2 O 2 Impinger Catch & Rinse

• Container No. 5 - Impingers 5, 6, & 7 - H 2 SO 4 /KMnO 4 Impingers Catch & Rinse

4.4.5 Process Sampling and Monitoring

Barrick Goldstrike Mines Inc. pe rsonnel will collect representativ e samples of the material fed through the Roaster Mill Circuit – Dry Grinding Pro cess during the test period. This sample willL2007-256 12 be subsequently analyzed for me rcury, and the results included in the fina l report. Barrick personnel will also monitor and record process data during each test r un. The data will be included in the final report.L2007-256 13 5.0 ANALYTICAL PROCE DURES AND CALCULATIONS

This section delineates the analytical procedur es and calculations that will be used by TRC during the Test Program.

5.1 ANALYTICAL PROCEDURES

At the conclusion of the fiel d effort, TRC will package th e mercury emission samples and provide delivery to the analy tical laboratory. TRC will u tilize Maxxam Analytical Inc. (Maxxam) located in Mississauga, Ontario, Ca nada as the laboratory for this program.

5.2 CALCULATIONS

5.2.1 Flow Rates and Isokinetics

Time = T Dry Gas Meter, ft 3 = VM Pitot ∆ P, in. H 2 O = ∆ P Orifice ∆ H, in. H 2 O = PM Dry Gas Temp In, oF = TMI Dry Gas Temp Out, oF = TMO Stack Static Pressure, in. H 2 O = PST Stack Temp, oF = TS

1. DN = Nozzle Diameter, inches

2. PB = Barometric Pressure, inches Hg

3. TT = Net Sampling Time, minutes

4. VM = VM final - VM initi al = Sample Gas Volume, ft 3

4A. VML = Use only if any fi nal or intermediate leak check rate is over 0.02 cfm

LI = Leak rate afte r any given sampling period, cfm TLI = Total time of sample pe riod in which leak occurred, minutes VML = VM - [(L1 - 0.02) TL I + (L2 - 0.02) TL2 + (L3 - 0.0 2) TL3 + (L4 - 0.02) TL4]

5. Average Dry Gas Temperature at meter, oF

TM = Average TMI + Average TMO 2L2007-256 14 6. Average Orifice Pressure Drop, inches Hg

PM = Average ∆ H, in. H 2 O 13.6

7. Volume of dry gas sampled at standard conditions, dscf a

VMSTD = 528 × (Y) × (VM) × (PB + PM) 29.92 × (TM + 460)

Y = dry gas meter calibration factor

8. Total Water Collected

VW = gm H 2 O silica gel + gm impinger H 2 O

Note: If ml H 2 O is measured - (ml Η 0.9982 gm/ml)

9. Volume of water vapor at standard conditions, scf b

VW gas = 0.04715 x VW

10. Percent moisture in stack gas

100 × VW gas % M = VMSTD + VW gas

11. Mole Fraction of dry gas (dimensionless)

100 - %M MD = 100

Note: The proper %M must be used in this calculation. Th e % vapor moisture can never be greater than the saturati on value at given stack temp erature. If 10 is greater than 10a, this is an indication of water droplets in the gas st ream. ( If 10 < 10a - use 10 %M in calculation, If 10 > 10 a - use 10a %M in calculation)

12. Molecular weight of dry stack gas

MWD = (% CO 2 × 0.44) + (% O 2 × 0.32) + [(% CO + % N 2 ) × 0.28]

12a. % Excess AirL2007-256 15 %EA = [(% O 2 ) - 0.5 × (% CO)] × 100 [(0.264) × (% N 2 )] - (% O 2 ) + 0.5 × (% CO)

13. Molecular Weight of wet stack gas

MW = (MWD × MD) + 18 × (1 - MD)

14. AS = Stack Area, square inches

Circular = π 2

2 diameter stack ⎟ ⎠ ⎞ ⎜ ⎝ ⎛

Rectangular = Length Η Width

15. PS = Stack Pressure, ab solute, inches Hg = PB ± Avg PST

PST = Stack static pressure

PST = PST in. H 2 O 13.6

PS = PB ± Average PST

16. TS avg = Average Stack Temperature

17. SDE avg = 

# ( ) 460 TS P avg + × Δ avg

18. Stack gas velocity at stack conditions, afpm

VS = 2 / 1

avg c MW PS 1 SDE Cp 5130 ⎥ ⎦ ⎤ ⎢ ⎣ ⎡

× × × ×

Cp = pitot tu be coefficient

19. Stack gas volumetric flow rate at stack conditions, acfm

Q a = VS × AS 144

20. Stack gas volumetric flow ra te at standard conditions, dscfm e

Q s = Q a × 528 × MD × PS (29.92) × (TS avg + 460)

21. Percent IsokineticsL2007-256 16 %ISO = 1039 f × (TS avg + 460) × VMSTD VS × TT × PS × MD × (DN) 2

a = Dry standard cubic feet at 68oF (528oR) and 29.92 in. Hg
b = Standard conditions at 68oF (528oR) and 29.92 in.Hg

c = 5130 = 

## ( ) ( ) ( )( ) min sec/ 60 O H in. R Hg in. mole

- lb/lb

sec ft 85.5

2 × ⎥ ⎦ ⎤ ⎢ ⎣ ⎡

× ° ×

d = Actual cubic feet per minute

e = Dry standard cubic feet per mi nute at 68oF (528oR ) and 29.92 in.Hg
f = 1039 = 29.92 in. Hg 144 in. 2 4 528oR × ft 2 × π × 100

5.2.2 Pounds Per Hour - Particle Bound, Oxidized, Elementa l and Total Mercury

Concentrations

Total mercury is defined by the method as the sum of the particulate bound mercury, oxidized mercury, and elemental mercury as shown in the fo llowing equation:

Hg(total), μ g/dscm = Hg tp + Hg 2+ + Hg o

The following equation is used for each species:

lb/hr = μ g/dscf mercury species x Qs dscfm x 60 min/hour 453.59 x 10 6 μ g/lb

mg/hr = lb x 453,590 mg hour lbL2007-256 17 6.0 QUALITY ASSURANCE

6.1 OVERVIEW

TRC management is fully committ ed to an effective Quality Assurance/Quality Control Program whose objective is the delivery of a quality product. For much of TRC's work, that product is data resulting from field measurements, samp ling and analysis activities, engineering assessments, and the analysis of gathered data for planning purposes. The Quality Assurance Program works to provide complete , precise, accurate , representative data in a timely manner for each project, considering both the project's needs and budget constraints.

This section highlights the speci fic QA/QC procedures to be followed on this Test Program.

6.2 FIELD QUALITY CONTROL SUMMARY

6.2.1 Calibration Procedures

Calibration of the field sampling equipment will be performed prior to the field sampling effort. Copies of the calibration sheets will be submitted to the field team leader to take onsite and for the project file. Calibrations will be perform ed as described in the EPA publications " Quality
Assurance Handbook for Ai r Pollution Measurement Systems; Volume III - St ationary Source Specific Methods " (EPA-600/4-77-027b) and EPA 40 CFR Pa rt 60 Appendix A. Equipment to

be calibrated includes the sa mple metering system, thermoco uples, and pitot tubes. All

calibrations will be available for review at the test program. C opies of the equipment calibration forms can be found in Appendix B.

6.2.2 Equipment Leak Checks

Prior to sampling, each Ontario Hydro sampling train will be leak ch ecked according to the procedures outlined in EPA Refere nce Method 5. During the course of a test run, a leak check

will be conducted before and after every test, or if re placement of a component becomes necessary. Final leak checks will be performed to ensure that no leaks developed in the train during the course of the test r un. All leakage rates, if any found, will be recorded on theL2007-256 18 appropriate field data sheet.

6.2.3 Cyclonic Flow Check

The absence of cyclonic flow w ithin the sampling location will be verified prior to sampling in

accordance with Section 2.4 of EPA Method 1.

6.3 DATA REDUCTION, VALI DATION, AND REPORTING

Specific QC measures will be used to ensure the generation of relia ble data from sampling activities. Proper collection and organization of accurate in formation followed by clear and concise reporting of th e data is a primary go al in all projects.

6.3.1 Field Data Reduction

Appendix D of this Test Plan presents the standardized forms that will be used to record field sampling data. The data collected will be reviewed in the field by the Field Team Leader and at

least one other field crew member . Errors or discrepancies will be noted in the field book.

6.3.2 Data Validation

TRC supervisory and QC personnel will use vali dation methods and criteria appropriate to the type of data and the purpose of the measurement. Records of all data will be maintained, including that judged to be an "outlying" or spurious value. The persons validating the data will have sufficient knowledge of the technica l work to identify questionable values.

Field sampling data will be valid ated by the Field Team Leader a nd/or the QC C oordinator based on their review of the adherence to an approved sampling protocol and wr itten sample collection procedure.

The following criteria will be used to evaluate the field sampling data:L2007-256 19 ● Use of approved test procedures;

● Proper operation of th e process being tested;

● Use of properly operatin g and calibrated equipment;

● Leak checks conducted before and after tests;

● Proper chain-of-custody maintained.

The criteria listed below will be used to evaluate the analytical data:

● Use of approved analytical procedures;

● Use of properly operating a nd calibrated instrumentation;

● Acceptable results from anal yses of QC samples (i.e., the reported values should
fall within the 95 percent confid ence interval for these samples).

6.3.3 Data Reporting

All data will be reported in st andard units depending on the meas urement and the ultimate use of

the data. The bulk of the data will be computer processed and reported as follows:

• Exhaust Gas Stream - Gas Properties: a. Moisture, dscf and percent by volume b. Flow rate, dscfm and acfm c. Pressure, mm of Hg d. Temperature, ° F

- Gas Diluents and Pollutants a. O 2 , percent b. CO 2 , percent

c. Mercury, lbs/hr

6.4 EXCEPTIONS

Any deviations from this test plan will be a pproved by the NDEP or EPA on-site observer if present, and documented in the final report.

# APPENDIX A EQUIPMENT CALIBRATION FORMS

# APPENDIX B

FIELD SAMPLING DATA SHEETS