### Source Emissions Testing Report Round Mountain Gold Corporation

M ercury Emissions Carbon Kiln & Refinery Furnace
Smoky Valley Mine Round Mountain, Nevada

Report prepared for: Report prepared by: Mr. Joshua Roderick Round M ountain Gold Corporation Smoky Valley Common Operation 1 Smoky Valley Mine Road Matt McGregor Round Mountain, Nevada 89045 Technical Writer

Test Dates: November 10 th 

### & 11 th 

### , 2008
APT Project: RMG 8330

# Table of Contents

1. Introduction ........................................................................................ 1
2. Methods........................................................................................... 2 3. Test Program Summary........................................

........................... 2
4. Test Method Details......................................................................... 3
5. Results......................................................................................... 4

Tables

Table 1.1 : Testing Program Contact Personn el............................... 1 Table 3.1 : Sampling and Analytical Methods................................... 3
Table 5.1 : Test Results Summary, Refinery Furnace

................... 5 Table 5.2 : Test Results Summary, Carbon Kiln........................... 6
Appendices
Testing Parameters

................................. .................................... Appendix 1
Field Data..................

. ................................................................... Appendix 2 Laboratory Data.........

. .................................................................. . Appendix 3 Calibration Data............................................................................. Appendix 4 Schematics.......

............................................................................ Appendix 5

### APT Project RMG8330 Test Report

– Smoky Valley Mine Mercury Emissions

page 1 1. Introduction
Air Pollution Testing, Inc. (APT) was contracted by Round Mountain Gold Corporation for source emissions test services conducted at the Smoky Valley Mine facility near Round Mountain, Nevada.
The purpose of the emissions testing progr am was to quantify the stack gas velocity and concentrations and mass emission rates of oxygen (O 2 

### ), carbon dioxide (CO 2 

### ), moisture (H 2 

### O), total suspended particulate matter (PM) and mercury (Hg). Testing was conducted at the Carbon Kiln

– Deep Bed Carbon Scrubber and Refinery Furnace

– Deep Bed Carbon Scrubber exhaust stack locations.

The stack test ing was conducted pursuant to the Nevada Mercury Control Program

. Contact personnel are provided in Table 1.1 below.

Round Mountain Gold Corporation : Smok y Valley Mine Mercury Emissions Testing Program Contact Personnel Name, Title Company, Address Phone, FAX , email

Mr. Rob Bamford
, Supervisor , Permitting Branch NDEP

- BAPC 901 S. Stewart Street, Suite 4001 Carson City, Nevada 89701 775

- 687

- 9495, 775

- 687

- 6396

Mr. Joshua Roderick, Environmental Technician Round Mountain Gold, Corp. Smoky Valley Mine No. 1 Smoky Valley Mine Road Round Mountain, Nevada 89045 775

- 377

- 3280, 775

- 377

- 3224
, joshua.roderick@kinr oss.com

Mr. Greg Schoen, Environmental Superintendent Round Mountain Gold, Corp. Smoky Valley Mine No. 1 Smoky Valley Mine Road Round Mountain, Nevada 89045 775

- 377

- 3336, 775

- 377

- 3224, greg.schoen@kinro ss.com

Mr. Craig Kormylo, Director of Operations Air Pollution Testing, Inc. 5530 Marshall Street Arvada, Colorado 80002 303

- 420

- 5949 ext. 24, 303

- 420

- 5920, ckormylo@airtest.net


### Table 1.1: Emissions Testi ng Program Contact Personnel

### APT Project RMG8330 Test Report

– Smoky Valley Mine Mercury Emissions

page 2 2 . Methods
APT tested in accordance with the following U.S. EPA source emissions test methods referenced in 40 CFR Part 60, Appendix A

.

• Method 1

–

Sample and Velocity Traverses for Stationary Sources

• Method 3

–

Gas A nalysis for the Determination of Dry Molecular Weight

• Method 29

–

Determination of Metals Emissions from Stationary Sources
3. Test Program Summary
The testing program provided all necessary equipment and labor for the determination of all emission pa rameters detailed in Table 3.1 on the following page. Integrated samples were recovered on

- site for shipment to the Test America laboratory as indicated below. Stack gas volumetric flow data wer e collected concurrently to calculate mass emission rates in units of pounds per hour (lb/hr). Various operational data were collected throughout the testing program and can be found at the back of Appendix 2

. At both of the sources, triplicate test runs were conducted in which a minimum of 60 dscf we re collecte d (or at least 2 hours in duration). All samples for off

- site analysis wer e collected by APT personnel and delivered via overnight shipment under chain

- of

- custody for subsequent analysis at the Test America laboratory in West Sacremento, California. All on
- site recovery of samples wer e conducted in an analytical trailer devoted specifically to sample recovery to minimize sample contamination risk.
In accordance with NDEP preference, a cyclonic flow check was performed prior to emissions testing. All QA/

QC requirements detailed in the appropriate reference test methods wer e strictly followed. All field data wer e recorded on appropriate data sheets. All pre

- test / post

test equipment calibration / preparation wer e conducted as required in the applicable reference test methods.

### APT Project RMG8330 Test Report

– Smoky Valley Mine Mercury Emissions

page 3 Round Mountain Gold Corporation : Smoky Valley Mine Mercury Sampling and Analytical Methods

Parameter Sampling Method Analytical Method Laboratory
gas flow Methods 1, 29 draft gauge, thermocouple, pitot tube

O 2 , CO 2 Method 3 wet chemical (Orsat instrument)

H 2 O Method 29 gravimetric APT, on
- site

PM Method 29 gravimetric
Hg Method 29 CVAAS (Hg) Test America
, West Sacramento, CA


### Table 3.1: Sampling and Analytical Methods Summary

4. Test Metho d Details

Me rcury emissions at the unit exhau sts were determined in accordance with EPA Method 29.

Each Hg sampling period consist ed of extracting a gas sample from the applicable sampling location at an isokinetic flow rate for a period sufficient to co llect a minimum sample volume of 60 dscf or for a duration of no less than 12 0 minute s . The gas pass ed through a glass (or Teflon

- coated stainless steel) nozzle, a heated Teflon probe liner, across a heated, tared quartz fiber filter, through a series of 6 chilled glass impingers, and through a calibrated dry gas meter.

At the start of Hg sampling, the first two impingers wer e filled with 100 ml of 10% hydrogen peroxide/5% nitric acid. The third and fourth impingers each contain ed 100 ml of 4% potassium permanganate/10% sulfuric acid. The fifth impinger was empty. The sixth impinger contain ed 250 grams of dried silica gel.
Following each sampling period, the filter, a series of acetone and dilute nitric acid rinses (separate amber bottles) of the probe and nozzle, and the contents of the impingers were recovered for subsequent cold vapor atomic absorption spectroscopy ( CVAAS ) analysis. CVAAS was used for mercury (Hg) analysis.
An integrated sample of stack gas was collected during each run and analyze d using an Orsat instrument. The laboratory data wer e combined with concurrently collected gas flow data to calculate the metals (on an elemental basis) emissions in units of pounds per hour (lb/hr)

.

### APT Project RMG8330 Test Report – Smoky Valley Mine Mercury Emissions

page 4 As a QA/QC measure, a train blank and a reagent bla nk of the impinger solutions were analyzed concurrent with the emissions samples.

5. Results
The results of the testing are presented in Tables 5.1 and 5.2. Any testing parameters not found in the tables may be found in Appendix 1 – Testing Parameters

. °F – temperature, measured in degrees Fahrenheit (° F)
dscfm – dry standard (68°F, 1 atmosphere) cubic fee t per minute

O 2 

### (%vd) – oxygen concentration (dry volume percent)

CO 2 

### (%vd) – carbon dioxide concentration (dry volume p ercent)

H 2 

### O (%vw) – duct gas water vapor content (wet volume percent)
F 1⁄2 PM – the front half of the particulate train, i ncluding the acetone rinse and filter
Hg – mercury
gr/dscf – grains per dry standard (68°F, 1 atmosphe re) cubic feet
lb/hr – pounds per hour
ug/dscm – micrograms per dry standard (68°F, 1 atmo sphere) cubic meter
gpm – gallons per minute

∆ P (“H 2 

### O) – pressure drop, in inches of water

### APT Project RMG8330 Test Report – Smoky Valley Mine Mercury Emissions

page 5 Round Mountain Gold Corporation – Smoky Valley Mine Mercury Test Results Summary, Refinery Furnace (November 10 th & 11 th , 2008) Run #1 Run #2 Run #3 Average
Date 11/10 11/11 11/11
Start Time 15:25 6:40 9:41 Stop Time 17:28 8:43 11:44 Sampling Time (minutes) 120.0 120.0 120.0 120.0 Stack Temp. (°F) 133 120 126 126 Stack Flow (dscfm) 2,053 1,743 1,726 1,840
O 2 (%vd) 19.0 19.0 19.0 19.0
CO 2 (%vd) 0.0 0.0 0.0 0.0
H 2 O (%vw) 3.5 3.0 3.5 3.3
% isokinetic 102.4 100.5 102.8 101.9 Operational Data Total Batch Weight (lbs) 185 191 168 Batch Time (min) 120 145 150 138 Process Material Hg Conc. (ppm) 0.068 0.078 0.098 0.081 Dynamic Scrubber Flow (gpm) 15 15 15 15 Dynamic Scrubber ∆ P (“H 2 O) 2.60 2.65 2.65 2.63
Carbon Bed Scrubber ∆ P (“H 2 O) 6.0 6.7 6.8 6.5
Emissions Data F 1⁄2 PM (lb/hr) 0.06 0.25 0.18 0.17 F 1⁄2 PM (gr/dscf) 0.004 0.017 0.012 0.011 Total Hg (ug/dscm) 1.39 19.80 19.72 13.64 Total Hg (lb/hr) 1.07E-05 1.29E-04 1.27E-04 8.92E-05



### Table 5.1: Test Results Summary, Refinery Furnace

### APT Project RMG8330 Test Report – Smoky Valley Mine Mercury Emissions

page 6 Round Mountain Gold Corporation – Smoky Valley Mine Mercury Test Results Summary, Carbon Kiln (November 11 th , 2008) Run #1 Run #2 Run #3 Average
Start Time 12:58 15:23 18:13 Stop Time 15:01 17:26 20:15 Sampling Time (minutes) 120.0 120.0 120.0 120.0 Stack Temp. (°F) 111 110 110 110 Stack Flow (dscfm) 514 511 504 510
O 2 (%vd) 18.5 18.5 18.5 18.5
CO 2 (%vd) 1.5 1.5 1.5 1.5
H 2 O (%vw) 11.1 10.8 10.8 10.9
% isokinetic 90.3 93.2 96.2 93.3 Operational Data Carbon Throughput (tons/hr) 0.42 0.42 0.42 0.42 Propane Throughput (gal/hr) 15.25 15.25 15.25 15.25 Process Material Hg Conc. (ppm) 5.52 5.60 4.58 5.23 Dynamic Scrubber Flow (gpm) 15 15 15 15 Dynamic Scrubber ∆ P (“H 2 O) 4.5 4.5 4.5 4.5
Carbon Bed Scrubber ∆ P (“H 2 O) 3 3 3 3
Emissions Data F 1⁄2 PM (lb/hr) 0.005 0.227 0.017 0.083 F 1⁄2 PM (gr/dscf) 0.001 0.052 0.004 0.019 Total Hg (ug/dscm) 6.86 7.68 4.26 6.27 Total Hg (lb/hr) 1.32E-05 1.47E-05 8.05E-06 1.20E-05



### Table 5.2: Test Results Summary, Carbon KilnRound Mountain Gold Corporation Smoky Valley Mine Round Mountain, Nevada Refinery Furnace 11/10 & 11/11/2008

EPA Method 29 - Determination of Metals Emissions f rom Stationary Sources (Hg only)

Run # 1 2 3 Average date 11/10 11/11 11/11 start time 15:25 6:40 9:41 stop time 17:28 8:43 11:44 sampling time (minutes) 120.0 120.0 120.0

D S stack diameter (inches) 8.3 8.3 8.3 8.3 √∆ P AVG average (delta P) 1⁄2 (" H 2 O) 1⁄2 1.689 1.407 1.406 1.501 C P pitot tube constant (unitless) 0.99 0.99 0.99 0.99 T S stack temp. (°F) 133 120 126 126 P bar barometric pressure (mbar) 812 817 817 815 P bar barometric pressure (" Hg) 23.98 24.13 24.13 24.08 Ps stack pressure (" H 2 O) 2.3 2.3 2.3 2.3 Y d meter box Y d (unitless) 0.995 0.995 0.995 0.995 T m meter temp. (°F) 55 39 55 50 V m sample volume (ft 3 ) 101.381 92.675 96.797 96.951 ∆ H orifice setting delta H (" H 2 O) 1.9 1.7 1.7 1.8 V lc moisture (g) 64.9 52.1 61.3 59.4 O 2 %vd oxygen (%vd) 19.0 19.0 19.0 19.0 CO 2 %vd carbon dioxide (%vd) 0.0 0.0 0.0 0.0 inches nozzle diameter (inches) 0.150 0.160 0.160 0.157

Run # 1 2 3 Average grams mass particulate front half (g) 0.00295 0.00200 0 .00235 0.00243 grams mass particulate filter (g) 0.01685 0.08415 0.060 65 0.05388

micrograms mass Hg (micrograms) (front half - μg) 0.6 9 2.3 1.0 1.33 micrograms mass Hg (micrograms) (HCl - μg) 0.12 0.13 0. 37 0.21 micrograms mass Hg (micrograms) (KMnO 4 - μg) 1.9 6.6 2.4 3.63 micrograms mass Hg (micrograms) (HNO 3 / H 2 O 2 - μg) 0.58 35.3 40.9 25.59

Run # 1 2 3 Average V mstd sample volume (dscf) 83.335 79.052 80.010 80.799

sample volume (dscm) 2.360 2.238 2.266 V wstd moisture volume (dscf) 3.055 2.452 2.885 2.798 B ws measured moisture content (%/100) 0.035 0.030 0.035 0.0 33

saturated moisture content (%/100) 0.203 0.142 0.167 0. 171 actual moisture content (%/100) 0.035 0.030 0.035 0.033 M D molecular weight (dry) 28.76 28.76 28.76 28.76 M A molecular weight (actual) 28.38 28.44 28.39 28.40 V S gas velocity (ft/sec) 133.0 109.1 109.7 117.3 F ACFM gas flow (acfm) 2,962 2,431 2,444 2,612 F DSCFM gas flow (dscfm) 2,053 1,743 1,726 1,840 lb/hr gas flow (lb/hr) 9,398 7,950 7,897 8,415 % % isokinetic 102.4 100.5 102.8 101.9

Particulate Emissions
lb/hr F1⁄2 PM (lb/hr) 0.06 0.25 0.18 0.17 gr/dscf F1⁄2 PM (gr/dscf) 0.004 0.017 0.012 0.011

Exhaust Total Hg Emissions
μg/dscm Hg emissions (μg/dscm) 1.39 19.80 19.72 13.64 lb/hr Hg emissions (lb/hr) 1.07E-05 1.29E-04 1.27E-04 8. 92E-05

Bold-face results represent a reporting limit (RL) elevated due to s ample dilution, Bold and Underlined results are estimated results that are less than the RL. The R L was substituted. Bold and italicized values represent an elevated RL. The RL was elevated due to matrix interference. Field Reference Method Data

Laboratory Data

Reference Method CalculationsRound Mountain Gold Corporation Smoky Valley Mine Round Mountain, Nevada Carbon Kiln 11/11/08

EPA Method 29 - Determination of Metals Emissions f rom Stationary Sources (Hg only)

Run # 1 2 3 Average start time 12:58 15:23 18:13 stop time 15:01 17:26 20:15 sampling time (minutes) 120.0 120.0 120.0

D S stack diameter (inches) 8.3 8.3 8.3 8.3 √∆ P AVG average (delta P) 1⁄2 (" H 2 O) 1⁄2 0.446 0.441 0.435 0.441 C P pitot tube constant (unitless) 0.99 0.99 0.99 0.99 T S stack temp. (°F) 111 110 110 110 P bar barometric pressure (mbar) 817 817 817 817 P bar barometric pressure (" Hg) 24.13 24.13 24.13 24.13 Ps stack pressure (" H 2 O) 0.25 0.25 0.25 0.25 Y d meter box Y d (unitless) 0.990 0.990 0.990 0.990 T m meter temp. (°F) 54 56 61 57 V m sample volume (ft 3 ) 92.525 95.171 97.916 95.204 ∆ H orifice setting delta H (" H 2 O) 1.5 1.6 1.6 1.5 V lc moisture (g) 352.4 242.9 242.8 279.4 O 2 %vd oxygen (%vd) 18.5 18.5 18.5 18.5 CO 2 %vd carbon dioxide (%vd) 1.5 1.5 1.5 1.5 inches nozzle diameter (inches) 0.305 0.305 0.305 0.305

Run # 1 2 3 Average grams mass particulate front half (g) 0.00020 0.25495 0.01 405 0.08973 grams mass particulate filter (g) 0.00485 0.00675 0.00650 0. 00603

micrograms mass Hg (micrograms) (front half - μg) 8.6 8.7 6.9 8.07 micrograms mass Hg (micrograms) (HCl - μg) 0.29 0.49 0.10 0.29 micrograms mass Hg (micrograms) (KMnO 4 - μg) 1.6 1.5 1.4 1.50 micrograms mass Hg (micrograms) (HNO 3 / H 2 O 2 - μg) 4.3 6.3 1.2 3.93

Run # 1 2 3 Average V mstd sample volume (dscf) 76.178 78.077 79.579 77.945

sample volume (dscm) 2.157 2.211 2.253 V wstd moisture volume (dscf) 16.587 11.433 11.429 13.150 B ws measured moisture content (%/100) 0.179 0.128 0.126 0.14 4

saturated moisture content (%/100) 0.111 0.108 0.108 0.1 09 actual moisture content (%/100) 0.111 0.108 0.108 0.109 M D molecular weight (dry) 28.98 28.98 28.98 28.98 M A molecular weight (actual) 27.76 27.80 27.80 27.79 V S gas velocity (ft/sec) 34.8 34.4 34.0 34.4 F ACFM gas flow (acfm) 775 766 756 766 F DSCFM gas flow (dscfm) 514 511 504 510 lb/hr gas flow (lb/hr) 2,499 2,476 2,445 2,473 % % isokinetic 90.3 93.2 96.2 93.3

Particulate Emissions
lb/hr F1⁄2 PM (lb/hr) 0.005 0.227 0.017 0.083 gr/dscf F1⁄2 PM (gr/dscf) 0.001 0.052 0.004 0.019

Exhaust Total Hg Emissions
μg/dscm Hg emissions (μg/dscm) 6.86 7.68 4.26 6.27 lb/hr Hg emissions (lb/hr) 1.32E-05 1.47E-05 8.05E-06 1.20E- 05

Bold-face results represent a reporting limit (RL) elevated due to sample dilution, Bold and Underlined results are estimated results that are less than the RL. The RL w as substituted. Bold and italicized values represent an elevated RL. The RL was elevated due to matrix interference. Field Reference Method Data

Laboratory Data

Reference Method Calculations