## APT Project BAR8436 Test Report – Bald Mountain Mine Electrowinning Cir cuit Cell Mercury

page 2 • %vw – stack gas moisture content, wet volume perce nt

• dscfm – stack gas flow rate, dry standard (one atm ., 68°F) cubic feet per minute

• ug/dscm – micrograms per dry standard (one atm., 6 8°F) cubic meter

• lb/hr – pollutant mass emission rate, pounds per h our

• gr/dscf – grains per dry standard (one atm., 68°F) cubic feet

• F 1⁄2 PM – front half particulate. This includes th e acetone rinse of the M29 probe and filter.

Barrick Gold Corporation : Bald Mountain Mine EW Ce lls Test Results Summary, December 2 nd 

### & 3 rd 

### , 2008 Run #1* Run #2 Run #3 Average Date 12/2 12/3 12/3 Start Time 14:52 8:46 11:57 Stop Time 17:57 10:49 13:40 Sampling Time (minutes) 120.0 120.0 120.0 120.0 Stack Temp. (°F) 95 88 97 93 Stack Flow (dscfm) 530 556 529 538 O 2 

### (%vd) 20.9 20.9 20.9 20.9 CO 2 

### (%vd) 0.0 0.0 0.0 0.0 H 2 

### O (%vw) 7.1 5.6 7.4 6.7 % isokinetic 100.4 98.8 100.9 100.0 Emissions Data F 1⁄2 PM (lb/hr) 0.006 0.012 0.008 0.009 F 1⁄2 PM (gr/dscf) 0.001 0.002 0.002 0.002 Hg Emissions (ug/dscm) 11,351 12,658 17,241 13,750 Hg Emissions (lb/hr) 0.023 0.026 0.034 0.028 * A run was conducted prior to this “Run #1” but wa s voided due to the operating conditions being outs ide the normal range. 

## Table 2.1: Test Results Summary

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

.

• Method 1 – Sample and Velocity Traverses for Statio nary Sources1231000 - 1205 1215 - 1420 1430 - 1635SYMBOL UNITSTotal Sampling Timemin minutes 120120120Stack Gas Oxygen ContentO2% 20.820.820.8Stack Gas Carbon Dioxide ContentCO2% 0.00.00.0Average StdevPercent MoistureBws % 1.391.281.321.330.06Isokinetic RateI % 97.79 98.44 100.67 98.97 1.51Average Stack Temperaturets deg F 97.6 101.6 99.8 99.67 2.02Average Meter Temperaturetm deg F 79.082.867.7 76.52 7.85Avg Velocity HeaddP in. H2O 1.501.501.501.500.00Avg Delta HdH in. H2O 1.651.681.701.680.03Gas Sample VolumeVm cu. ft. 102.374 103.648 103.167 103.06 0.64Vm(std) cu. ft. 82.328 82.771 84.752 83.28 1.29cu. m. 2.331 2.343 2.399 2.360.04Vs ft/sec 78.16 78.53 78.41 78.37 0.19m/sec 23.82 23.94 23.90 23.89 0.06Qsd dscf/min 2,597.4 2,594.2 2,597.4 2596.3 1.87dscm/min 73.53 73.44 73.53 73.50 0.05mg 0.0026 0.0032 0.0067 0.0042 0.0022gr/dscf 0.0000005 0.000001 0.000001 0.000001 0.000000g/dscm 0.000001 0.000001 0.000003 0.000002 0.000001lb/hr 0.000011 0.000013 0.000027 0.000017 0.000009mg 1.452.111.461.670.38gr/dscf 0.00027 0.00039 0.00026 0.00031 0.00007g/dscm 0.00062 0.00090 0.00061 0.00071 0.00017lb/hr 0.00602 0.00874 0.00589 0.00688 0.00161mg 1.452.121.461.680.38gr/dscf 0.00027 0.00039 0.00027 0.00031 0.00007g/dscm 0.00062 0.00090 0.00061 0.00071 0.00017lb/hr 0.00603 0.00876 0.00592 0.00690 0.00161Gas Sample Volume at Standard Conditions,Dry Stack Gas Flow Rate (Dry, STP),Stack Gas VelocityEPA METHOD 29Run Number18-Feb-08Run DateRun TimesSystem 61, Carbon Reactivation Kiln Outlet - Mercury Emission SummaryMercury (Hg) - TotalMercury (Hg) - Particulate BoundMercury (Hg) - Gaseous1231355 - 1555 1606 - 1806 1817 - 2017SYMBOL UNITSTotal Sampling Timemin minutes 120120120Stack Gas Oxygen ContentO2 % 20.820.820.8Stack Gas Carbon Dioxide ContentCO2 % 0.00.00.0Average StdevPercent MoistureBws % 2.782.582.482.620.15Isokinetic RateI % 101.60 103.86 101.38 102.28 1.37Average Stack Temperaturets deg F 86.584.979.1 83.50 3.91Average Meter Temperaturetm deg F 70.863.760.9 65.12 5.15Avg Velocity HeaddP in. H2O 0.010.010.010.010.00Avg Delta HdH in. H2O 1.431.451.411.430.02Gas Sample VolumeVm cu. ft. 92.927 93.991 91.837 92.92 1.08Vm(std) cu. ft. 75.554 77.471 76.094 76.37 0.99cu. m. 2.139 2.193 2.154 2.160.03Vs ft/sec 6.366.346.316.340.02m/sec 1.941.931.921.930.01Qsd dscf/min 25.525.625.8 25.65 0.12dscm/min 0.720.730.730.73 0.003mg 1.860 0.486 0.316 0.890.85gr/dscf 0.00038 0.00010 0.00006 0.00018 0.00017g/dscm 0.00087 0.00022 0.00015 0.00041 0.00040lb/hr 0.00008 0.00002 0.00001 0.00004 0.00004mg 81.737.827.549.028.8gr/dscf 0.0166 0.0075 0.0056 0.0099 0.0059g/dscm 0.0382 0.0173 0.0128 0.0227 0.0136lb/hr 0.0036 0.0017 0.0012 0.0022 0.0013mg 83.538.327.849.929.6gr/dscf 0.0170 0.0076 0.0056 0.0101 0.0061g/dscm 0.0391 0.0175 0.0129 0.0231 0.0140lb/hr 0.0037 0.0017 0.0012 0.0022 0.0013System 67, Retort No. 1 - Mercury Emission SummaryMercury (Hg) - TotalMercury (Hg) - Particulate BoundMercury (Hg) - GaseousGas Sample Volume at Standard Conditions,Dry Stack Gas Flow Rate (Dry, STP),Stack Gas VelocityEPA METHOD 29Run Number19-Feb-08Run DateRun Times1231333 - 1533 1544 - 1744 1753 - 1953SYMBOL UNITSTotal Sampling Timemin minutes 120120120Stack Gas Oxygen ContentO2 % 20.820.820.8Stack Gas Carbon Dioxide ContentCO2 % 0.00.00.0Average StdevPercent MoistureBws % 1.101.361.431.300.17Isokinetic RateI % 100.39 100.99 100.69 100.69 0.30Average Stack Temperaturets deg F 83.477.376.0 78.86 3.96Average Meter Temperaturetm deg F 66.961.457.0 61.80 4.97Avg Velocity HeaddP in. H2O 0.010.010.010.010.00Avg Delta HdH in. H2O 1.401.401.401.400.00Gas Sample VolumeVm cu. ft. 92.982 92.889 91.880 92.58 0.61Vm(std) cu. ft. 75.686 76.407 76.223 76.11 0.38cu. m. 2.143 2.163 2.158 2.150.01Vs ft/sec 6.346.306.306.310.02m/sec 1.931.921.921.920.01Qsd dscf/min 25.926.026.0 25.96 0.06dscm/min 0.730.740.740.740.00mg 0.1700 0.1640 0.1350 0.1563 0.02gr/dscf 0.00003 0.00003 0.00003 0.00003 0.000004g/dscm 0.00008 0.00008 0.00006 0.00007 0.000009lb/hr 0.00001 0.00001 0.00001 0.00001 0.000001mg 4.533.102.683.440.97gr/dscf 0.0009 0.0006 0.0005 0.0007 0.0002g/dscm 0.0021 0.0014 0.0012 0.0016 0.0005lb/hr 0.0002 0.0001 0.0001 0.0002 0.00004mg 4.703.262.813.590.98gr/dscf 0.0010 0.0007 0.0006 0.0007 0.0002g/dscm 0.0022 0.0015 0.0013 0.0017 0.0005lb/hr 0.0002 0.0001 0.0001 0.0002 0.00004Gas Sample Volume at Standard Conditions,Dry Stack Gas Flow Rate (Dry, STP),Stack Gas VelocityEPA METHOD 29Run Number21-Feb-08Run DateRun TimesSystem 67, Retort No. 2 - Mercury Emission SummaryMercury (Hg) - TotalMercury (Hg) - Particulate BoundMercury (Hg) - Gaseous1231527 - 1727 1741 - 1941 1958 - 2158SYMBOL UNITSTotal Sampling Timemin minutes 120120120Stack Gas Oxygen ContentO2 % 20.820.820.8Stack Gas Carbon Dioxide ContentCO2 % 0.00.00.0Average StdevPercent MoistureBws % 1.651.591.521.590.06Isokinetic RateI % 101.95 100.73 99.60 100.76 1.17Average Stack Temperaturets deg F 70.568.666.1 68.38 2.19Average Meter Temperaturetm deg F 57.258.856.6 57.53 1.16Avg Velocity HeaddP in. H2O 0.010.010.010.010.00Avg Delta HdH in. H2O 1.401.401.401.400.00Gas Sample VolumeVm cu. ft. 93.279 92.670 91.500 92.48 0.90Vm(std) cu. ft. 77.520 76.767 76.125 76.80 0.70cu. m. 2.195 2.173 2.155 2.170.02Vs ft/sec 6.266.256.236.250.01m/sec 1.911.901.901.900.00Qsd dscf/min 26.126.226.3 26.19 0.07dscm/min 0.740.740.740.74 0.002mg 0.405 0.163 0.130 0.233 0.150gr/dscf 0.00008 0.00003 0.00003 0.00005 0.00003g/dscm 0.00018 0.00008 0.00006 0.00011 0.00007lb/hr 0.00002 0.00001 0.00001 0.00001 0.00001mg 33.34 30.51 25.39 29.75 4.02gr/dscf 0.0066 0.0061 0.0051 0.0060 0.0008g/dscm 0.0152 0.0140 0.0118 0.0137 0.0017lb/hr 0.0015 0.0014 0.0012 0.0013 0.0002mg 33.74 30.67 25.52 29.98 4.15gr/dscf 0.0067 0.0062 0.0052 0.0060 0.0008g/dscm 0.0154 0.0141 0.0118 0.0138 0.0018lb/hr 0.0015 0.0014 0.0012 0.0013 0.0002Gas Sample Volume at Standard Conditions,Dry Stack Gas Flow Rate (Dry, STP),Stack Gas VelocityEPA METHOD 29Run Number20-Feb-08Run DateRun TimesSystem 67, Retort No. 3 - Mercury Emission SummaryMercury (Hg) - TotalMercury (Hg) - Particulate BoundMercury (Hg) - Gaseous

### 123

1008-1214 1242-1500 1533-1740 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 19.5 19.5 19.5 Stack Gas Carbon Dioxide Content CO 2 % 0.5 0.5 0.5 

### Average Percent Moisture Bws % 12.25 12.43 11.73 12.14 Isokinetic Rate I % 107.83 104.82 102.43 105.03 Average Stack Temperature ts deg F 184.3 182.0 185.6 183.99 Average Meter Temperature tm deg F 64.0 72.1 65.4 67.14 Avg Velocity Head dP in. H 2 O 0.46 0.49 0.51 0.49 Avg Delta H dH in. H 2 O 1.41 1.50 1.42 1.44 Gas Sample Volume Vm cu. ft. 90.394 92.175 91.112 91.23 Vm(std) cu. ft. 75.827 76.169 76.234 76.08
cu. m. 2.147 2.156 2.158 2.15 Vs ft/sec 46.26 47.75 48.79 47.60 m/sec 14.10 14.55 14.87 14.51 Qsd dscf/min 117,638.5 121,555.4 124,501.4 121231.75 dscm/min 3,330.35 3,441.23 3,524.64 3,432.07

mg 0.00052 0.00042 0.00069 0.00054 gr/dscf 0.0000001 0.0000001 0.0000001 0.0000001 g/dscm 0.0000002 0.0000002 0.0000003 0.0000003

lb/hr 0.0001 0.0001 0.0001 0.0001
mg 0.00177 0.04746 0.00150 0.0169 gr/dscf 0.0000004 0.00001 0.0000003 0.000003 g/dscm 0.000001 0.00002 0.000001 0.00001

lb/hr 0.0004 0.0100 0.0003 0.0036 mg 0.00229 0.04788 0.00219 0.01745 gr/dscf 0.0000005 0.000010 0.0000004 0.000004 g/dscm 0.000001 0.000022 0.000001 0.00001

lb/hr 0.0005 0.0101 0.0005 0.0037

mg 11.60 12.20 13.00 12.27
mg 4.20 3.90 3.20 3.77 mg 15.80 16.10 16.20 16.03 gr/dscf 0.0032 0.0033 0.0033 0.0032 g/dscm 0.0074 0.0075 0.0075 0.0074

lb/hr 3.236 3.392 3.492 3.373 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total 

## System 15B North Roaster Dry Grind Mill - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 4-Apr-08 EPA METHOD 29

Run Date Run Times

### 123

0855-1105 1135-1350 1420-1625 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 19.5 19.5 19.5 Stack Gas Carbon Dioxide Content CO 2 % 1.0 1.0 1.0 

### Average Percent Moisture Bws % 12.69 12.69 11.68 12.35 Isokinetic Rate I % 108.09 104.24 103.52 105.28 Average Stack Temperature ts deg F 201.3 203.8 202.2 202.44 Average Meter Temperature tm deg F 54.6 56.0 55.8 55.47 Avg Velocity Head dP in. H 2 O 0.41 0.40 0.41 0.41 Avg Delta H dH in. H 2 O 1.20 1.09 1.11 1.14 Gas Sample Volume Vm cu. ft. 85.045 80.415 81.979 82.48 Vm(std) cu. ft. 70.943 66.880 68.220 68.68
cu. m. 2.008 1.893 1.931 1.94 Vs ft/sec 44.61 43.79 44.35 44.25 m/sec 13.60 13.35 13.52 13.49 Qsd dscf/min 109,796.3 107,329.2 110,235.4 109120.29 dscm/min 3,108.33 3,038.49 3,120.76 3,089.20

mg 0.00048 0.00048 0.00044 0.00047 gr/dscf 0.0000001 0.0000001 0.0000001 0.0000001 g/dscm 0.0000002 0.0000003 0.0000002 0.0000002

lb/hr 0.0001 0.0001 0.0001 0.0001
mg 0.00250 0.00413 0.00275 0.00313 gr/dscf 0.000001 0.000001 0.000001 0.000001 g/dscm 0.000001 0.000002 0.000001 0.000002

lb/hr 0.0005 0.0009 0.0006 0.0007 mg 0.0030 0.0046 0.0032 0.0036 gr/dscf 0.000001 0.000001 0.000001 0.000001 g/dscm 0.000001 0.000002 0.000002 0.000002

lb/hr 0.0006 0.0010 0.0007 0.0008

mg 28.30 29.40 29.20 28.97
mg 11.00 10.10 9.10 10.07 mg 39.30 39.50 38.30 39.03 gr/dscf 0.0085 0.0091 0.0086 0.0088 g/dscm 0.0196 0.0209 0.0198 0.0201

lb/hr 8.029 8.367 8.169 8.188 

## System 16B South Roaster Dry Grind Mill - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 3-Apr-08 EPA METHOD 29

Run Date Run Times

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 123

0925-1143 1225-1438 1511-1727 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 17.0 18.0 17.0 Stack Gas Carbon Dioxide Content CO 2 % 45.0 45.0 45.0 

### Average Percent Moisture Bws % 10.72 10.19 9.40 10.10 Isokinetic Rate I % 91.72 94.49 94.76 93.65 Average Stack Temperature ts deg F 664.4 664.5 662.1 663.67 Average Meter Temperature tm deg F 98.6 110.6 116.8 108.66 Avg Velocity Head dP in. H 2 O 0.85 0.87 0.88 0.87 Avg Delta H dH in. H 2 O 2.57 2.80 2.91 2.76 Gas Sample Volume Vm cu. ft. 108.342 115.250 118.566 114.05 Vm(std) cu. ft. 82.877 86.371 87.933 85.73
cu. m. 2.346 2.445 2.489 2.43 Vs ft/sec 77.04 77.48 77.80 77.44 m/sec 23.48 23.62 23.71 23.60 Qsd dscf/min 22,505.5 22,767.3 23,112.8 22795.19 dscm/min 637.13 644.54 654.32 645.33

mg 1.14000 0.64600 0.20600 0.66400 gr/dscf 0.0002118 0.0001152 0.0000361 0.0001210 g/dscm 0.0004859 0.0002642 0.0000828 0.0002776

lb/hr 0.0409 0.0225 0.0071 0.0235
mg 1.22930 0.36652 0.48510 0.6936 gr/dscf 0.0002284 0.00007 0.0000850 0.000126 g/dscm 0.000524 0.00015 0.000195 0.00029

lb/hr 0.0441 0.0128 0.0168 0.0245 mg 2.36930 1.01252 0.69110 1.35764 gr/dscf 0.000440 0.000181 0.0001210 0.000247 g/dscm 0.001010 0.000414 0.000278 0.00057

lb/hr 0.0849 0.0352 0.0240 0.0480

mg 100.20 59.50 22.80 60.83
mg 5.40 5.50 5.70 5.53 mg 105.60 65.00 28.50 66.37 gr/dscf 0.0196 0.0116 0.0050 0.0121 g/dscm 0.0450 0.0266 0.0114 0.0277

lb/hr 3.785 2.262 0.989 2.345 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total Run Date Run Times 

## System 18 Roaster Outlet - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### EPA METHOD 29

1-Apr-08

## Carbon Kiln - Mercury Emission Summary

123

0755-0958 1010-1217 1228-1432 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 2.61 3.02 3.26 2.96 Isokinetic Rate I % 97.80 98.21 97.76 97.92 Average Stack Temperature ts deg F 116.9 121.3 123.5 120.6 Average Meter Temperature tm deg F 81.6 86.8 90.9 86.4 Avg Velocity Head dP in. H 2 O 1.44 1.58 1.54 1.52 Avg Delta H dH in. H 2 O 1.44 1.58 1.54 1.52 Gas Sample Volume Vm cu. ft. 94.543 98.863 97.340 96.915 Vm(std) cu. ft. 75.688 78.437 76.643 76.923
cu. m. 2.143 2.221 2.170 2.178 Vs ft/sec 77.21 80.64 79.65 79.17 m/sec 23.53 24.58 24.28 24.13 Qsd dscf/min 2,438.9 2,517.1 2,470.9 2475.6 dscm/min 69.05 71.26 69.95 70.09

mg 0.07890 0.04210 0.03380 0.05160 gr/dscf 0.00002 0.00001 0.00001 0.00001 g/dscm 0.00004 0.00002 0.00002 0.00002

lb/hr 0.00034 0.00018 0.00014 0.00022
mg 4.18053 4.33310 5.14970 4.55444 gr/dscf 0.0009 0.0009 0.0010 0.0009 g/dscm 0.0020 0.0020 0.0024 0.0021

lb/hr 0.0178 0.0184 0.0219 0.0194 mg 4.25943 4.37520 5.18350 4.60604 gr/dscf 0.0009 0.0009 0.0010 0.0009 g/dscm 0.0020 0.0020 0.0024 0.0021

lb/hr 0.0181 0.0185 0.0221 0.0196

mg 74.20 69.30 75.80 73.10
mg 0.70 0.70 1.10 0.83 mg 74.90 70.00 76.90 73.93 gr/dscf 0.0152 0.0137 0.0155 0.0148 g/dscm 0.0350 0.0315 0.0354 0.0340

lb/hr 0.319 0.297 0.327 0.314 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total 

### EPA METHOD 29

Normal Operation Run Times

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Gas Sample Volume at Standard Conditions, 

### 4/5/08 Run Number

Run Date

## Carbon Kiln - Mercury Emission Summary

456

0715-0917 0929-1131 1141-1343 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 18.5 18.5 19.0 Stack Gas Carbon Dioxide Content CO 2 % 2.0 2.0 1.5 

### Average Percent Moisture Bws % 2.13 3.23 3.44 2.93 Isokinetic Rate I % 97.49 98.26 98.06 97.94 Average Stack Temperature ts deg F 111.8 123.9 124.8 120.2 Average Meter Temperature tm deg F 73.6 86.5 86.1 82.1 Avg Velocity Head dP in. H 2 O 1.67 1.80 1.75 1.74 Avg Delta H dH in. H 2 O 1.67 1.80 1.75 1.74 Gas Sample Volume Vm cu. ft. 100.113 105.764 103.443 103.107 Vm(std) cu. ft. 81.210 83.800 82.012 82.341
cu. m. 2.299 2.372 2.322 2.331 Vs ft/sec 82.23 86.95 85.57 84.92 m/sec 25.06 26.50 26.08 25.88 Qsd dscf/min 2,625.4 2,687.8 2,635.7 2649.6 dscm/min 74.33 76.09 74.62 75.01

mg 0.01770 0.00570 0.01030 0.01123 gr/dscf 0.000003 0.000001 0.000002 0.000002 g/dscm 0.00001 0.000002 0.000004 0.000005

lb/hr 0.00008 0.00002 0.00004 0.00005
mg 4.58990 4.85240 4.47180 4.63803 gr/dscf 0.0009 0.0009 0.0008 0.0009 g/dscm 0.0020 0.0020 0.0019 0.0020

lb/hr 0.0196 0.0205 0.0190 0.0197 mg 4.60760 4.85810 4.48210 4.64927 gr/dscf 0.0009 0.0009 0.0008 0.0009 g/dscm 0.0020 0.0020 0.0019 0.0020

lb/hr 0.0197 0.0206 0.0190 0.0197

mg 71.30 77.00 69.30 72.53
mg 0.80 1.50 4.90 2.40 mg 72.10 78.50 74.20 74.93 gr/dscf 0.0137 0.0144 0.0139 0.0140 g/dscm 0.0314 0.0331 0.0320 0.0321

lb/hr 0.308 0.332 0.315 0.318 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total Run Times

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Gas Sample Volume at Standard Conditions, Run Number Run Date 

### EPA METHOD 29

80% of Permit Load 

### 4/6/08

### 123

0838-1040 1106-1308 1325-1527 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 60.0 60.0 60.0 Stack Gas Carbon Dioxide Content CO 2 % 30.0 30.0 30.0 

### Average Percent Moisture Bws % 38.42 40.24 41.99 40.22 Isokinetic Rate I % 102.85 103.97 105.09 103.97 Average Stack Temperature ts deg F 163.0 165.1 167.6 165.22 Average Meter Temperature tm deg F 66.2 74.4 72.6 71.08 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 0.13 0.13 0.13 0.13 Gas Sample Volume Vm cu. ft. 25.996 25.982 25.495 25.82 Vm(std) cu. ft. 21.520 21.206 20.877 21.20
cu. m. 0.609 0.600 0.591 0.60 Vs ft/sec 6.74 6.78 6.83 6.78 m/sec 2.05 2.07 2.08 2.07 Qsd dscf/min 1,842.8 1,796.3 1,749.6 1796.24 dscm/min 52.17 50.85 49.53 50.85

mg 0.00060 0.00140 0.00180 0.00127 gr/dscf 0.0000004 0.000001 0.000001 0.000001 g/dscm 0.000001 0.000002 0.000003 0.000002

lb/hr 0.00001 0.00002 0.00002 0.00001
mg 0.08260 0.08480 0.07310 0.08017 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0001 0.0001 0.0001

lb/hr 0.0009 0.0009 0.0008 0.0009 mg 0.08320 0.08620 0.07490 0.08143 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0001 0.0001 0.0001

lb/hr 0.0009 0.0010 0.0008 0.0009

mg 52.70 307.40 95.30 151.80
mg 0.70 11.75 14.05 8.83 mg 53.40 319.15 109.35 160.63 gr/dscf 0.0382 0.2318 0.0807 0.1169 g/dscm 0.0877 0.5316 0.1850 0.2681

lb/hr 0.604 3.569 1.210 1.794 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total 

## Autoclave #1 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 3-Apr-08 EPA METHOD 29

Run Date Run Times

### 123

0807-1009 1024-1226 1242-1444 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 63.0 63.0 63.0 Stack Gas Carbon Dioxide Content CO 2 % 24.0 24.0 24.0 

### Average Percent Moisture Bws % 72.59 73.75 74.08 73.47 Isokinetic Rate I % 105.22 99.07 102.18 102.16 Average Stack Temperature ts deg F 196.7 196.4 195.8 196.26 Average Meter Temperature tm deg F 70.7 80.4 85.3 78.80 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 0.03 0.03 0.03 0.03 Gas Sample Volume Vm cu. ft. 13.058 12.043 12.400 12.50 Vm(std) cu. ft. 10.814 9.795 9.984 10.20
cu. m. 0.306 0.277 0.283 0.29 Vs ft/sec 7.77 7.80 7.81 7.79 m/sec 2.37 2.38 2.38 2.37 Qsd dscf/min 2,423.8 2,331.6 2,304.3 2353.25 dscm/min 68.62 66.01 65.23 66.62

mg 0.01200 0.00240 0.00250 0.00563 gr/dscf 0.00002 0.000004 0.000004 0.00001 g/dscm 0.00004 0.00001 0.00001 0.00002

lb/hr 0.0004 0.0001 0.0001 0.0002
mg 0.04944 0.04501 0.04971 0.04805 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0002 0.0002 0.0002 0.0002

lb/hr 0.0015 0.0014 0.0015 0.0015 mg 0.06144 0.04741 0.05221 0.05369 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0002 0.0002 0.0002 0.0002

lb/hr 0.0018 0.0015 0.0016 0.0016

mg 19.20 18.00 22.60 19.93
mg 9.60 12.70 13.40 11.90 mg 28.80 30.70 36.00 31.83 gr/dscf 0.0410 0.0483 0.0555 0.0483 g/dscm 0.0941 0.1107 0.1274 0.1107

lb/hr 0.852 0.965 1.097 0.971 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total 

## Autoclave #2/3 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 12-Apr-08 EPA METHOD 29

Run Date Run Times

### 123

1018-1220 1239-1441 1455-1657 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 60.0 60.0 60.0 Stack Gas Carbon Dioxide Content CO 2 % 27.0 27.0 27.0 

### Average Percent Moisture Bws % 70.61 72.26 73.88 72.25 Isokinetic Rate I % 108.47 106.65 104.72 106.61 Average Stack Temperature ts deg F 199.8 199.2 198.9 199.28 Average Meter Temperature tm deg F 66.2 71.5 72.0 69.89 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 0.04 0.04 0.03 0.04 Gas Sample Volume Vm cu. ft. 14.229 13.424 12.505 13.39 Vm(std) cu. ft. 11.734 10.960 10.199 10.96
cu. m. 0.332 0.310 0.289 0.31 Vs ft/sec 7.76 7.81 7.85 7.81 m/sec 2.37 2.38 2.39 2.38 Qsd dscf/min 1,408.5 1,338.1 1,268.1 1338.25 dscm/min 39.88 37.88 35.90 37.89

mg 0.00120 0.00100 0.00074 0.00098 gr/dscf 0.000002 0.000001 0.000001 0.000001 g/dscm 0.000004 0.000003 0.000003 0.000003

lb/hr 0.00002 0.00002 0.00001 0.00002
mg 0.04695 0.05428 0.05090 0.0507 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0002 0.0002 0.0002

lb/hr 0.0007 0.0009 0.0008 0.0008 mg 0.0482 0.0553 0.0516 0.0517 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0002 0.0002 0.0002

lb/hr 0.0008 0.0009 0.0008 0.0008

mg 14.4 25.1 25.5 21.7
mg 17.7 12.0 10.9 13.5 mg 32.10 37.10 36.40 35.20 gr/dscf 0.0421 0.0521 0.0550 0.0497 g/dscm 0.0966 0.1196 0.1261 0.1141

lb/hr 0.509 0.598 0.597 0.568 

## Autoclave #4 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 1-Apr-08 EPA METHOD 29

Run Date Run Times

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 123

0825-1027 1044-1246 1300-1502 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 66.0 66.0 66.0 Stack Gas Carbon Dioxide Content CO 2 % 27.0 27.0 27.0 

### Average Percent Moisture Bws % 72.63 73.15 73.88 73.22 Isokinetic Rate I % 101.02 102.45 104.81 102.76 Average Stack Temperature ts deg F 199.6 199.2 198.0 198.96 Average Meter Temperature tm deg F 69.1 70.8 71.1 70.35 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 0.03 0.03 0.03 0.03 Gas Sample Volume Vm cu. ft. 12.494 12.498 12.501 12.50 Vm(std) cu. ft. 10.234 10.208 10.188 10.21
cu. m. 0.290 0.289 0.288 0.29 Vs ft/sec 7.81 7.82 7.84 7.83 m/sec 2.38 2.38 2.39 2.39 Qsd dscf/min 2,592.5 2,549.7 2,487.2 2543.13 dscm/min 73.39 72.18 70.41 72.00

mg 0.00110 0.00120 0.00550 0.00260 gr/dscf 0.000002 0.000002 0.000008 0.000004 g/dscm 0.000004 0.000004 0.00002 0.00001

lb/hr 0.00004 0.00004 0.00018 0.00008
mg 0.02820 0.03535 0.03230 0.03195 gr/dscf 0.00004 0.00005 0.00005 0.00005 g/dscm 0.0001 0.0001 0.0001 0.0001

lb/hr 0.0009 0.0012 0.0010 0.0010 mg 0.02930 0.03655 0.03780 0.03455 gr/dscf 0.00004 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0001 0.0001 0.0001

lb/hr 0.0010 0.0012 0.0012 0.0011

mg 11.00 26.90 26.40 21.43
mg 9.00 10.60 12.80 10.80 mg 20.00 37.50 39.20 32.23 gr/dscf 0.0301 0.0566 0.0593 0.0486 g/dscm 0.0690 0.1298 0.1359 0.1116

lb/hr 0.669 1.236 1.263 1.056 

## Autoclave #5/6 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 2-Apr-08 EPA METHOD 29

Run Date Run Times

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 123

1216-1416 1427-1627 1640-1840 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 2.43 2.46 2.21 2.36 Isokinetic Rate I % 98.07 97.86 98.07 98.00 Average Stack Temperature ts deg F 75.3 72.0 63.8 70.38 Average Meter Temperature tm deg F 66.3 65.2 63.1 64.86 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 2.00 2.00 2.00 2.00 Gas Sample Volume Vm cu. ft. 107.700 107.978 108.834 108.17 Vm(std) cu. ft. 89.093 88.795 89.862 89.25
cu. m. 2.522 2.514 2.544 2.53 Vs ft/sec 6.27 6.27 6.22 6.25 m/sec 1.91 1.91 1.90 1.91 Qsd dscf/min 26.0 25.9 26.2 26.03 dscm/min 0.74 0.73 0.74 0.74

mg 3.45000 1.88000 1.36000 2.23000 gr/dscf 0.00060 0.00033 0.00023 0.00039 g/dscm 0.00137 0.00075 0.00053 0.00088

lb/hr 0.00013 0.00007 0.00005 0.00009
mg 84.28000 68.18000 57.55000 70.00333 gr/dscf 0.01457 0.01182 0.00986 0.01209 g/dscm 0.03341 0.02712 0.02262 0.02772

lb/hr 0.00324 0.00263 0.00221 0.00270 mg 87.73000 70.06000 58.91000 72.23333 gr/dscf 0.01516 0.01215 0.01010 0.01247 g/dscm 0.03478 0.02787 0.02316 0.02860

lb/hr 0.00338 0.00270 0.00227 0.00278

mg 23.60 19.80 21.20 21.53
mg 14.80 18.60 19.80 17.73 mg 38.40 38.40 41.00 39.27 gr/dscf 0.0066 0.0067 0.0070 0.0068 g/dscm 0.0152 0.0153 0.0161 0.0155

lb/hr 0.001 0.001 0.002 0.002 Run Date Run Times 

## Retort No. 1 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### EPA METHOD 29

9-Apr-08

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 123

1250-1450 1502-1702 1714-1914 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 1.27 1.30 1.16 1.24 Isokinetic Rate I % 95.43 95.76 96.58 95.93 Average Stack Temperature ts deg F 71.6 75.3 74.8 73.89 Average Meter Temperature tm deg F 71.2 73.3 72.8 72.45 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 1.90 1.90 1.90 1.90 Gas Sample Volume Vm cu. ft. 107.862 108.263 109.255 108.46 Vm(std) cu. ft. 87.307 87.286 88.175 87.59
cu. m. 2.472 2.471 2.496 2.48 Vs ft/sec 6.27 6.29 6.29 6.28 m/sec 1.91 1.92 1.92 1.92 Qsd dscf/min 26.1 26.1 26.1 26.10 dscm/min 0.74 0.74 0.74 0.74

mg 0.10100 0.18400 0.14100 0.14200 gr/dscf 0.000018 0.000032 0.000025 0.000025 g/dscm 0.000041 0.000074 0.000056 0.000057

lb/hr 0.000004 0.000007 0.000006 0.000006
mg 4.73480 2.64610 1.80340 3.06143 gr/dscf 0.00084 0.00047 0.00031 0.00054 g/dscm 0.00192 0.00107 0.00072 0.00124

lb/hr 0.00019 0.00010 0.00007 0.00012 mg 4.83580 2.83010 1.94440 3.20343 gr/dscf 0.00085 0.00050 0.00034 0.00056 g/dscm 0.00196 0.00115 0.00078 0.00129

lb/hr 0.00019 0.00011 0.00008 0.00013

mg 41.30 50.70 39.80 43.93
mg 7.50 9.70 12.20 9.80 mg 48.80 60.40 52.00 53.73 gr/dscf 0.0086 0.0107 0.0091 0.0094 g/dscm 0.0197 0.0244 0.0208 0.0217

lb/hr 0.002 0.002 0.002 0.002 

## Retort No. 2 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity 

### EPA METHOD 29
Run Number 

### 7-Apr-08 Run Date Run Times

Mercury (Hg) - Total Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 123

1307-1507 1519-1719 1734-1934 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 1.89 1.93 1.60 1.80 Isokinetic Rate I % 98.51 98.29 98.49 98.43 Average Stack Temperature ts deg F 67.0 60.6 62.2 63.26 Average Meter Temperature tm deg F 70.6 67.2 63.0 66.93 Avg Velocity Head dP in. H 2 O 0.01 0.01 0.01 0.01 Avg Delta H dH in. H 2 O 2.00 2.00 2.00 2.00 Gas Sample Volume Vm cu. ft. 110.611 110.305 109.768 110.23 Vm(std) cu. ft. 90.442 90.762 91.051 90.75
cu. m. 2.560 2.569 2.578 2.57 Vs ft/sec 6.22 6.19 6.19 6.20 m/sec 1.90 1.89 1.89 1.89 Qsd dscf/min 26.2 26.4 26.4 26.35 dscm/min 0.74 0.75 0.75 0.75

mg 2.7200 4.8400 2.9400 3.5000 gr/dscf 0.0005 0.0008 0.0005 0.0006 g/dscm 0.0011 0.0019 0.0011 0.0014

lb/hr 0.0001 0.0002 0.0001 0.0001
mg 76.1000 57.3682 53.9800 62.4827 gr/dscf 0.0130 0.0097 0.0091 0.0106 g/dscm 0.0297 0.0223 0.0209 0.0243

lb/hr 0.0029 0.0022 0.0021 0.0024 mg 78.8200 62.2082 56.9200 65.9827 gr/dscf 0.0134 0.0106 0.0096 0.0112 g/dscm 0.0308 0.0242 0.0221 0.0257

lb/hr 0.0030 0.0024 0.0022 0.0025

mg 13.00 14.10 17.60 14.90
mg 19.20 29.10 33.50 27.27 mg 32.20 43.20 51.10 42.17 gr/dscf 0.0055 0.0073 0.0086 0.0072 g/dscm 0.0126 0.0168 0.0198 0.0164

lb/hr 0.001 0.002 0.002 0.002 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total 

## Retort No. 3 - Mercury Emission Summary

Gas Sample Volume at Standard Conditions,

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Run Number 

### 8-Apr-08 Run Date 

### EPA METHOD 29

Run Times

### EPA METHOD 29 123

0530-0733 0744-0947 0955-1158 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 6.74 6.61 6.16 6.50 Isokinetic Rate I % 102.10 101.56 99.99 101.22 Average Stack Temperature ts deg F 95.7 95.1 93.0 94.58 Average Meter Temperature tm deg F 64.3 67.4 71.1 67.59 Avg Velocity Head dP in. H 2 O 1.25 1.25 1.27 1.26 Avg Delta H dH in. H 2 O 1.25 1.25 1.27 1.26 Gas Sample Volume Vm cu. ft. 89.131 89.314 89.824 89.42 Vm(std) cu. ft. 73.313 73.037 72.946 73.10
cu. m. 2.076 2.068 2.065 2.07 Vs ft/sec 72.15 72.08 72.48 72.24 m/sec 21.99 21.97 22.09 22.02 Qsd dscf/min 6,844.6 6,855.2 6,954.0 6884.57 dscm/min 193.77 194.07 196.87 194.90

mg 0.0448 0.0557 0.0374 0.0460 gr/dscf 0.00001 0.00001 0.00001 0.00001 g/dscm 0.00002 0.00003 0.00002 0.00002

lb/hr 0.0006 0.0007 0.0005 0.0006
mg 2.0385 2.8718 1.0876 1.9993 gr/dscf 0.0004 0.0006 0.0002 0.0004 g/dscm 0.0010 0.0014 0.0005 0.0010

lb/hr 0.0251 0.0356 0.0137 0.0248 mg 2.0833 2.9275 1.1250 2.0453 gr/dscf 0.0004 0.0006 0.0002 0.0004 g/dscm 0.0010 0.0014 0.0005 0.0010

lb/hr 0.0257 0.0363 0.0142 0.0254

mg 20.70 20.30 18.60 19.87
mg 0.70 1.40 1.40 1.17 mg 21.40 21.70 20.00 21.033 gr/dscf 0.0045 0.0046 0.0042 0.0044 g/dscm 0.0103 0.0105 0.0097 0.0102

lb/hr 0.264 0.269 0.252 0.261 Run Number

Run Date 

## Furnace Mill - Mercury Emission Summary

4/10/08 

## Furnace & EW Cells
Run Times

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Gas Sample Volume at Standard Conditions,

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected

### 456

0710-0912 0920-1123 1132-1335 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 % 20.8 20.8 20.8 Stack Gas Carbon Dioxide Content CO 2 % 0.0 0.0 0.0 

### Average Percent Moisture Bws % 7.03 5.79 6.13 6.32 Isokinetic Rate I % 103.02 100.96 99.40 101.13 Average Stack Temperature ts deg F 100.1 94.0 97.0 97.07 Average Meter Temperature tm deg F 64.6 79.8 86.1 76.83 Avg Velocity Head dP in. H 2 O 1.25 1.25 1.25 1.25 Avg Delta H dH in. H 2 O 1.25 1.25 1.25 1.25 Gas Sample Volume Vm cu. ft. 88.372 90.749 89.745 89.62 Vm(std) cu. ft. 74.311 74.167 72.486 73.65
cu. m. 2.104 2.100 2.052 2.09 Vs ft/sec 71.65 71.22 71.34 71.40 m/sec 21.84 21.71 21.74 21.76 Qsd dscf/min 6,876.1 7,002.4 6,951.4 6943.30 dscm/min 194.66 198.24 196.79 196.56

mg 0.0134 0.0069 0.0027 0.0077 gr/dscf 0.000003 0.000001 0.000001 0.000002 g/dscm 0.00001 0.000003 0.000001 0.000004

lb/hr 0.0002 0.0001 0.00003 0.0001
mg 0.3019 0.4457 0.2482 0.3319 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0002 0.0001 0.0002

lb/hr 0.0037 0.0056 0.0031 0.0041 mg 0.3153 0.4526 0.2509 0.3396 gr/dscf 0.0001 0.0001 0.0001 0.0001 g/dscm 0.0001 0.0002 0.0001 0.0002

lb/hr 0.0039 0.0056 0.0032 0.0042

mg 18.50 20.30 20.70 19.83
mg 0.90 0.90 0.80 0.87 mg 19.40 21.20 21.50 20.700 gr/dscf 0.0040 0.0044 0.0046 0.0043 g/dscm 0.0092 0.0101 0.0105 0.0099

lb/hr 0.237 0.264 0.272 0.258 Emission Rate

Grain Loading Grain Loading Particulate Matter Results Front Half Rinse (FHACE) Particulate Filter Total Particulate Collected Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total Run Times

Dry Stack Gas Flow Rate (Dry, STP), Stack Gas Velocity Gas Sample Volume at Standard Conditions, Run Number Run Date 

## Furnace Mill - Mercury Emission Summary

4/11/08 

## EW Cells Only EPA METHOD 29

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/6/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 18 Roaste r PERSONNEL: CONDITION: Normal Load



### M29 Mercury
Parameter SYMBOL UNITS Test Number 123 Test Date 6-Aug-08 6-Aug-08 6-Aug-08 Start Time 0833 1118 1417 Stop Time 1038 1323 1623 Measured Data 3 Run Avg Stack Diameter ds inches 51.00 51.00 51.00 Nozzle Diameter dn inches 0.279 0.279 0.279 Barometric Pressure at Sampling Location Pbar in. Hg 24.69 24.69 24.66 24.68 Stack Static Pressure Pg in. H2O 0.05 0.05 0.05 0.05 Pitot Coefficient cp none 0.8400 0.8400 0.8400 0.8400 Meter Calibration Factors Y none 1.0047 1.0047 1.0047 1.0047 DH@ none 1.6573 1.6573 1.6573 1.6573 Stack Gas Oxygen Content O2 % 16.0 16.0 15.0 15.7 Stack Gas Carbon Dioxide Content CO2 % 28.0 25.0 26.0 26.3 Net Moisture Gain (Impingers w/SiGel) Ww grams 175.3 195.1 177.8 182.7 Average Stack Temperature ts deg F 657.3 658.8 659.0 658.4 Average Meter Temperature tm deg F 110.5 117.0 120.1 115.9 Avg Delta H dH in. H2O 1.85 2.06 1.98 1.96 Average Square Root Delta H ASR dH in. H2O 1.360 1.434 1.405 1.399 Avg Velocity Head dP in. H2O 0.76 0.84 0.80 0.80 Average Square Root Delta P ASR dP in H2O 0.871 0.914 0.894 0.893 Gas Sample Volume Vm cu. ft. 97.740 104.061 100.115 100.639 Total Sampling Time min minutes 120 120 120 Calculated Data Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.0611 0.0611 0.0611 0.0611 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 14.19 14.19 14.19 14.19 Avg Stack Temperature, Ts=ts+460 Ts deg R 1117.3 1118.8 1119.0 1118.4 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.83 24.84 24.81 24.82 Avg Meter Temperature, Tm=tm+460 Tm deg R 570.5 577.0 580.1 575.9 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 75.408 79.438 75.901 76.916 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.135 2.249 2.149 2.177 Net Moisture Gain (Impingers w/SiGel) Ww grams 175.3 195.1 177.8 182.7 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 8.265 9.199 8.383 8.616 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 9.88% 10.38% 9.95% 10.07% Dry Stack Gas Molecular Weight, Mwd g/g-mole 33.12 32.64 32.76 32.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 31.63 31.12 31.29 31.35 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.69 24.69 24.66 24.68 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 74.84 79.22 77.29 77.12 Vsm = 0.3048* Vs Vsm m/sec 22.81 24.15 23.56 23.51 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 63,702 67,432 65,787 65,640 Stack Gas Flow Rate (STP), Qsw scf/min 24,844 26,264 25,589 25,566 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 22,390.2 23,538.2 23,043.9 22,990.8 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 633.9 666.4 652.4 650.9 Isokinetic Rate, I % 93.78 93.97 91.72 93.16 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 1.0388 1.0419 1.0632 1.0480

Meter Quality Assurance/Quality Check % Diff -3.4% -3.7% -5.8% -4.3% =100*(Y-Yqa)/Y Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATACLIENT: Barrick Goldstrike Mines Inc. DATES: 8/6/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 18 Roaste r PERSONNEL: CONDITION: Normal Load
Parameter SYMBOL UNITS 1 2 3 3 Run Avg Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 16.0 16.0 15.0 15.7 Stack Gas Carbon Dioxide Content CO2 % 28.0 25.0 26.0 26.3 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 75.408 79.438 75.901 76.916 cu. m. 2.135 2.249 2.149 2.177 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 22,390.2 23,538.2 23,043.9 22,990.8 dscm/min 633.9 666.4 652.4 650.9

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 0.95 1.6 0.40 0.98 Net Weight mg 0.001 0.002 0.000 0.001 Concentration gr/dscf 1.94E-07 3.10E-07 8.12E-08 1.95E-07 Concentration g/dscm 4.45E-07 7.11E-07 1.86E-07 4.48E-07 Concentration ug/dscf 0.013 0.020 0.005 0.013 Concentration ug/dscm 0.445 0.711 0.186 0.448 Emission Rate mg/hr 16.9 28.4 7.3 17.6 Emission Rate lb/hr 3.73E-05 6.27E-05 1.61E-05 3.87E-05 Hg (gaseous) ug 810.5 531.4 528.3 623.4 Net Weight mg 0.81 0.53 0.53 0.62 Concentration gr/dscf 1.66E-04 1.03E-04 1.07E-04 1.25E-04 Concentration g/dscm 3.80E-04 2.36E-04 2.46E-04 2.87E-04 Concentration ug/dscf 10.748 6.689 6.960 8.133 Concentration ug/dscm 379.659 236.294 245.863 287.272 Emission Rate mg/hr 14439.2 9447.5 9623.7 11170.1 Emission Rate lb/hr 3.18E-02 2.08E-02 2.12E-02 2.46E-02

Total Mercur y ug 811.5 533.0 528.7 624.4 Total Weight mg 0.81 0.53 0.53 0.62 Concentration gr/dscf 1.66E-04 1.03E-04 1.07E-04 1.25E-04 Concentration g/dscm 3.80E-04 2.37E-04 2.46E-04 2.88E-04 Concentration ug/dscf 10.761 6.710 6.966 8.145 Concentration ug/dscm 380.104 237.005 246.049 287.720 Emission Rate mg/hr 14456.1 9475.9 9630.9 11187.7 Emission Rate lb/hr 3.19E-02 2.09E-02 2.12E-02 2.47E-02

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0344 0.0453 0.0175 0.0324 Concentration mg 34.40 45.30 17.50 32.40 Concentration gr/dscf 7.03E-03 8.78E-03 3.55E-03 6.45E-03 Concentration g/dscm 1.61E-02 2.01E-02 8.14E-03 1.48E-02 Emission Rate lb/hr 1.35 1.77 0.70 1.27 M29 - Particulate Emissions - System #18 Roaster Outlet 

### Sampling Data Summary

Method 29 - Mercury Emissions Summary - System #18 Roaster OutletPRELIMINARY 

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/3/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 19 North Quench PERSONNEL: CONDITION: Normal Load



### M29 Mercury
Parameter SYMBOL UNITS Test Number 123 Test Date 3-Aug-08 3-Aug-08 3-Aug-08 Start Time 1138 1459 1759 Stop Time 1349 1710 2005 Measured Data 3 Run Avg Stack Diameter ds inches 24.00 24.00 24.00 Nozzle Diameter dn inches 0.256 0.256 0.256 Barometric Pressure at Sampling Location Pbar in. Hg 24.86 24.60 24.60 24.69 Stack Static Pressure Pg in. H2O 3.70 3.70 3.70 3.70 Pitot Coefficient cp none 0.8400 0.8400 0.8400 0.8400 Meter Calibration Factors Y none 0.9970 0.9970 0.9970 0.9970 DH@ none 1.5780 1.5780 1.5780 1.5780 Stack Gas Oxygen Content O2 % 21.5 21.4 21.5 21.5 Stack Gas Carbon Dioxide Content CO2 % 0.6 0.7 0.7 0.7 Net Moisture Gain (Impingers w/SiGel) Ww grams 165.3 162.2 209.8 179.1 Average Stack Temperature ts deg F 124.3 127.5 123.6 125.1 Average Meter Temperature tm deg F 100.9 106.2 108.4 105.2 Avg Delta H dH in. H2O 2.30 1.85 2.11 2.09 Average Square Root Delta H ASR dH in. H2O 1.509 1.353 1.447 1.436 Avg Velocity Head dP in. H2O 0.74 0.59 0.66 0.66 Average Square Root Delta P ASR dP in H2O 0.853 0.763 0.812 0.810 Gas Sample Volume Vm cu. ft. 122.450 111.679 119.937 118.022 Total Sampling Time min minutes 120 120 120 Calculated Data Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.0515 0.0515 0.0515 0.0515 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 3.14 3.14 3.14 3.14 Avg Stack Temperature, Ts=ts+460 Ts deg R 584.3 587.5 583.6 585.1 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 25.03 24.74 24.76 24.84 Avg Meter Temperature, Tm=tm+460 Tm deg R 560.9 566.2 568.4 565.2 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 96.130 85.840 91.907 91.292 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.721 2.430 2.602 2.584 Net Moisture Gain (Impingers w/SiGel) Ww grams 165.3 162.2 209.8 179.1 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 7.794 7.648 9.892 8.445 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 7.50% 8.18% 9.72% 8.47% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.96 28.97 28.97 28.97 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.13 28.07 27.91 28.04 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 25.13 24.87 24.87 24.96 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 55.71 50.27 53.48 53.15 Vsm = 0.3048* Vs Vsm m/sec 16.98 15.32 16.30 16.20 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 10,501 9,476 10,081 10,019 Stack Gas Flow Rate (STP), Qsw scf/min 7,970 7,079 7,582 7,544 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 7,372.7 6,500.3 6,845.5 6,906.2 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 208.7 184.0 193.8 195.5 Isokinetic Rate, I % 95.50 96.72 98.33 96.85 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 0.9960 0.9896 0.9866 0.9907

Meter Quality Assurance/Quality Check % Diff 0.1% 0.7% 1.0% 0.6% =100*(Y-Yqa)/Y Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATA

PRELIMINARYPRELIMINARY CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/3/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 19 North Quench PERSONNEL: CONDITION: Normal Load
Parameter SYMBOL UNITS 1 2 3 3 Run Avg Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 21.5 21.4 21.5 21.5 Stack Gas Carbon Dioxide Content CO2 % 0.6 0.7 0.7 0.7 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 96.130 85.840 91.907 91.292 cu. m. 2.721 2.430 2.602 2.584 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 7,372.7 6,500.3 6,845.5 6,906.2 dscm/min 208.7 184.0 193.8 195.5

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 231 115 72.4 139.5 Net Weight mg 0.231 0.115 0.072 0.139 Concentration gr/dscf 3.70E-05 2.06E-05 1.21E-05 2.33E-05 Concentration g/dscm 8.49E-05 4.73E-05 2.78E-05 5.33E-05 Concentration ug/dscf 2.403 1.340 0.788 1.510 Concentration ug/dscm 84.882 47.322 27.826 53.343 Emission Rate mg/hr 1063.0 522.5 323.6 636.4 Emission Rate lb/hr 2.34E-03 1.15E-03 7.13E-04 1.40E-03 Hg (gaseous) ug 2085 2293 1176 1852 Net Weight mg 2.09 2.29 1.18 1.85 Concentration gr/dscf 3.34E-04 4.11E-04 1.97E-04 3.14E-04 Concentration g/dscm 7.66E-04 9.44E-04 4.52E-04 7.21E-04 Concentration ug/dscf 21.694 26.712 12.800 20.402 Concentration ug/dscm 766.287 943.565 452.133 720.662 Emission Rate mg/hr 9596.5 10418.3 5257.3 8424.0 Emission Rate lb/hr 2.12E-02 2.30E-02 1.16E-02 1.86E-02

Total Mercur y ug 2316 2408 1249 1991 Total Weight mg 2.32 2.41 1.25 1.99 Concentration gr/dscf 3.71E-04 4.32E-04 2.09E-04 3.37E-04 Concentration g/dscm 8.51E-04 9.91E-04 4.80E-04 7.74E-04 Concentration ug/dscf 24.10 28.05 13.59 21.91 Concentration ug/dscm 851.17 990.89 479.96 774.01 Emission Rate mg/hr 10659.5 10940.8 5580.8 9060.4 Emission Rate lb/hr 2.35E-02 2.41E-02 1.23E-02 2.00E-02

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0051 0.0052 0.0061 0.0055 Concentration mg 5.10 5.20 6.10 5.47 Concentration gr/dscf 8.17E-04 9.33E-04 1.02E-03 9.24E-04 Concentration g/dscm 1.87E-03 2.14E-03 2.34E-03 2.12E-03 Emission Rate lb/hr 5.16E-02 5.20E-02 6.00E-02 5.45E-02 M29 - Particulate Emissions - System #19 North Quench Outlet 

### Sampling Data Summary

Method 29 - Mercury Emissions Summary - System #19 North Quench Outlet

PRELIMINARY

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/4/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 19 South Quench PERSONNEL: CONDITION: Normal Load



### M29 Mercury
Parameter SYMBOL UNITS Test Number 123 Test Date 4-Aug-08 4-Aug-08 4-Aug-08 Start Time 0857 1144 1507 Stop Time 1104 1359 1712 Measured Data 3 Run Avg Stack Diameter ds inches 24.00 24.00 24.00 Nozzle Diameter dn inches 0.233 0.233 0.233 Barometric Pressure at Sampling Location Pbar in. Hg 24.86 24.60 24.60 24.69 Stack Static Pressure Pg in. H2O 1.20 1.20 1.20 1.20 Pitot Coefficient cp none 0.8400 0.8400 0.8400 0.8400 Meter Calibration Factors Y none 1.0047 1.0047 1.0047 1.0047 DH@ none 1.6573 1.6573 1.6573 1.6573 Stack Gas Oxygen Content O2 % 21.8 21.4 21.7 21.6 Stack Gas Carbon Dioxide Content CO2 % 0.6 0.7 0.6 0.6 Net Moisture Gain (Impingers w/SiGel) Ww grams 142.9 150.8 152.5 148.7 Average Stack Temperature ts deg F 121.9 123.8 125.8 123.8 Average Meter Temperature tm deg F 89.1 93.8 100.1 94.3 Avg Delta H dH in. H2O 1.77 1.74 1.82 1.78 Average Square Root Delta H ASR dH in. H2O 1.275 1.317 1.348 1.313 Avg Velocity Head dP in. H2O 0.81 0.79 0.82 0.80 Average Square Root Delta P ASR dP in H2O 0.896 0.886 0.904 0.895 Gas Sample Volume Vm cu. ft. 103.753 104.699 106.835 105.096 Total Sampling Time min minutes 120 120 120 Calculated Data Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.0426 0.0426 0.0426 0.0426 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 3.14 3.14 3.14 3.14 Avg Stack Temperature, Ts=ts+460 Ts deg R 581.9 583.8 585.8 583.8 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.99 24.73 24.73 24.82 Avg Meter Temperature, Tm=tm+460 Tm deg R 549.1 553.8 560.1 554.3 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 83.712 82.891 83.650 83.418 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.370 2.347 2.368 2.362 Net Moisture Gain (Impingers w/SiGel) Ww grams 142.9 150.8 152.5 148.7 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 6.738 7.110 7.190 7.013 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 7.45% 7.90% 7.92% 7.75% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.97 28.97 28.96 28.97 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.15 28.10 28.10 28.12 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.95 24.69 24.69 24.77 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 58.58 58.35 59.63 58.85 Vsm = 0.3048* Vs Vsm m/sec 17.85 17.79 18.17 17.94 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 11,042 10,999 11,240 11,094 Stack Gas Flow Rate (STP), Qsw scf/min 8,354 8,209 8,360 8,308 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 7,732.0 7,560.2 7,698.2 7,663.5 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 218.9 214.0 217.9 217.0 Isokinetic Rate, I % 95.72 96.94 96.07 96.25 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 0.9593 0.9918 1.0002 0.9838

Meter Quality Assurance/Quality Check % Diff 4.5% 1.3% 0.4% 2.1% =100*(Y-Yqa)/Y Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATACLIENT: Barrick Goldstrike Mines Inc. DATES: 8/4/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 19 South Quench PERSONNEL: CONDITION: Normal Load
Parameter SYMBOL UNITS 1 2 3 3 Run Avg Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 21.8 21.4 21.7 21.6 Stack Gas Carbon Dioxide Content CO2 % 0.6 0.7 0.6 0.6 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 83.712 82.891 83.650 83.418 cu. m. 2.370 2.347 2.368 2.362 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 7,732.0 7,560.2 7,698.2 7,663.5 dscm/min 218.9 214.0 217.9 217.0

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 33.5 72.4 8.1 38.0 Net Weight mg 0.034 0.072 0.008 0.038 Concentration gr/dscf 6.16E-06 1.35E-05 1.49E-06 7.03E-06 Concentration g/dscm 1.41E-05 3.09E-05 3.42E-06 1.61E-05 Concentration ug/dscf 0.400 0.873 0.097 0.457 Concentration ug/dscm 14.136 30.853 3.420 16.136 Emission Rate mg/hr 185.7 396.2 44.7 208.9 Emission Rate lb/hr 4.09E-04 8.73E-04 9.86E-05 4.60E-04 Hg (gaseous) ug 1501 1424 907 1277 Net Weight mg 1.50 1.42 0.91 1.28 Concentration gr/dscf 2.76E-04 2.64E-04 1.67E-04 2.36E-04 Concentration g/dscm 6.33E-04 6.07E-04 3.83E-04 5.41E-04 Concentration ug/dscf 17.933 17.174 10.843 15.317 Concentration ug/dscm 633.446 606.656 383.004 541.035 Emission Rate mg/hr 8319.5 7790.5 5008.2 7039.4 Emission Rate lb/hr 1.83E-02 1.72E-02 1.10E-02 1.55E-02

Total Mercur y ug 1535 1496 915 1315 Total Weight mg 1.53 1.50 0.92 1.32 Concentration gr/dscf 2.82E-04 2.78E-04 1.68E-04 2.43E-04 Concentration g/dscm 6.48E-04 6.38E-04 3.86E-04 5.57E-04 Concentration ug/dscf 18.33 18.05 10.94 15.77 Concentration ug/dscm 647.58 637.51 386.42 557.17 Emission Rate mg/hr 8505.1 8186.7 5052.9 7248.3 Emission Rate lb/hr 1.88E-02 1.80E-02 1.11E-02 1.60E-02

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0092 0.0085 0.0067 0.0081 Concentration mg 9.20 8.50 6.70 8.13 Concentration gr/dscf 1.69E-03 1.58E-03 1.23E-03 1.50E-03 Concentration g/dscm 3.88E-03 3.62E-03 2.83E-03 3.44E-03 Emission Rate lb/hr 1.12E-01 1.02E-01 8.14E-02 9.86E-02 M29 - Particulate Emissions - System #19 South Quench Outlet 

### Sampling Data Summary

Method 29 - Mercury Emissions Summary - System #19 South Quench Outlet

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. Date: 7/20/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 61, Carbon Kiln Outlet PERSONNEL: TS/AN CONDITION:

Method 29 - Mercury

Parameter SYMBOL UNITS Test Number Run 1 Run 2 Run 3 Test Date 20-Jul-08 20-Jul-08 20-Jul-08 Start Time 9:27 11:51 14:33 Stop Time 11:31 14:17 16:38 Calculated Data 3-Run Avg. Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.0755 0.0755 0.0755 0.0755 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.72 0.72 0.72 0.72 Avg Stack Temperature, Ts=ts+460 Ts deg R 631.6 631.1 620.5 627.7 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.49 24.48 24.48 24.48 Avg Meter Temperature, Tm=tm+460 Tm deg R 563.9 561.0 548.7 557.9 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 82.190 80.637 80.922 81.250 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.327 2.283 2.291 2.300 Net Moisture Gain (Impingers w/SiGel) Ww grams 39.4 43.6 45.2 42.7 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 1.858 2.056 2.131 2.015 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 2.21% 2.49% 2.57% 2.42% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.96 28.96 28.96 28.96 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.72 28.69 28.68 28.69 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.34 24.34 24.34 24.34 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 32.69 31.83 31.28 31.93 Vsm = 0.3048* Vs Vsm m/sec 9.96 9.70 9.54 9.73 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 1,415 1,377 1,354 1,382 Stack Gas Flow Rate (STP), Qsw scf/min 962 938 937 946 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 941.0 914.2 913.3 922.8 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 26.6 25.9 25.9 26.1 Isokinetic Rate, I % 100.17 101.15 101.62 100.98 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 0.9974 0.9920 0.9891 0.9928

Meter Quality Assurance/Quality Check % Diff 0.1% 0.6% 0.9% 0.6% =100*(Y-Yqa)/Y

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg. Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.0 20.0 20.0 20.0 Stack Gas Carbon Dioxide Content CO2 % 1.0 1.0 1.0 1.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 82.190 80.637 80.922 81.250 cu. m. 2.327 2.283 2.291 2.300 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 941.0 914.2 913.3 922.8 dscm/min 26.6 25.9 25.9 26.1 

## Calculation Sheet

The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATA



### Sampling Data Summary Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH

Page 7 System #61-Carbon Kiln Outlet-M29.xlsCLIENT: Barrick Goldstrike Mines Inc. Date: 7/20/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 61, Carbon Kiln Outlet PERSONNEL: TS/AN

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 15.70 86.0 176 92.57 Net Weight mg 0.0157 0.0860 0.1760 0.0926 Concentration gr/dscf 2.94E-06 1.64E-05 3.35E-05 1.76E-05 Concentration g/dscm 6.75E-06 3.77E-05 7.68E-05 4.04E-05 Concentration ug/dscf 0.191 1.067 2.175 1.144 Concentration ug/dscm 6.747 37.672 76.825 40.415 Emission Rate mg/hr 10.8 58.5 119.2 62.8 Emission Rate lb/hr 2.38E-05 1.29E-04 2.63E-04 1.38E-04 Hg (gaseous) ug 5956 8480 3648 6027.8 Net Weight mg 5.9558 8.4798 3.6477 6.0278 Concentration gr/dscf 1.12E-03 1.62E-03 6.94E-04 1.14E-03 Concentration g/dscm 2.56E-03 3.71E-03 1.59E-03 2.62E-03 Concentration ug/dscf 72.464 105.160 45.077 74.233 Concentration ug/dscm 2559.650 3714.594 1592.248 2622.164 Emission Rate mg/hr 4091.2 5768.4 2470.0 4109.9 Emission Rate lb/hr 9.02E-03 1.27E-02 5.45E-03 9.06E-03 Total Mercury ug 5972 8566 3824 6120.3 Total Weight mg 5.9715 8.5658 3.8237 6.1203 Concentration gr/dscf 1.12E-03 1.64E-03 7.28E-04 1.16E-03 Concentration g/dscm 2.57E-03 3.75E-03 1.67E-03 2.66E-03 Concentration ug/dscf 72.65 106.23 47.25 75.38 Concentration ug/dscm 2566.40 3752.27 1669.07 2662.58 Emission Rate mg/hr 4102.0 5826.9 2589.2 4172.7 Emission Rate lb/hr 9.04E-03 1.28E-02 5.71E-03 9.20E-03

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0013 0.0033 0.0077 0.0041 Concentration mg 1.30 3.30 7.70 4.10 Concentration gr/dscf 2.44E-04 6.30E-04 1.47E-03 7.80E-04 Concentration g/dscm 5.59E-04 1.45E-03 3.36E-03 1.79E-03 Emission Rate lb/hr 1.96E-03 4.94E-03 1.15E-02 6.12E-03 Method 29 - Mercury Emissions Summary - System #61 Carbon Kiln Outlet

M29 - Particulate Emissions - System #61 Carbon Kiln Outlet

Page 8 System #61-Carbon Kiln Outlet-M29.xls

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. Date: 7/23/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #1 Outlet - NMCP PERSONNEL: TS/AN CONDITION:

Method 29 - Mercury

Parameter SYMBOL UNITS Test Number Run 1 Run 2 Run 3 Test Date 23-Jul-08 23-Jul-08 23-Jul-08 Start Time 12:05 14:28 16:46 Stop Time 14:05 16:28 18:46 Calculated Data 3-Run Avg. Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.3632 0.3632 0.3632 0.3632 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.09 0.09 0.09 0.09 Avg Stack Temperature, Ts=ts+460 Ts deg R 557.2 564.1 565.7 562.3 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.60 24.60 24.60 24.60 Avg Meter Temperature, Tm=tm+460 Tm deg R 558.7 560.9 564.9 561.5 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 88.434 88.353 88.426 88.404 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.504 2.501 2.503 2.503 Net Moisture Gain (Impingers w/SiGel) Ww grams 26.4 28.0 28.0 27.5 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 1.245 1.320 1.320 1.295 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 1.39% 1.47% 1.47% 1.44% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.84 28.84 28.84 28.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.69 28.68 28.68 28.68 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.45 24.45 24.45 24.45 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 6.40 6.44 6.45 6.43 Vsm = 0.3048* Vs Vsm m/sec 1.95 1.96 1.97 1.96 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 34 34 34 34 Stack Gas Flow Rate (STP), Qsw scf/min 26 26 26 26 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.6 25.4 25.4 25.5 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 0.7 0.7 0.7 0.7 Isokinetic Rate, I % 99.64 100.24 100.45 100.11 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 1.0180 1.0169 1.0124 1.0158

Meter Quality Assurance/Quality Check % Diff -1.3% -1.2% -0.8% -1.1% =100*(Y-Yqa)/Y

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg. Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 88.434 88.353 88.426 88.404 cu. m. 2.504 2.501 2.503 2.503 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.6 25.4 25.4 25.5 dscm/min 0.7 0.7 0.7 0.7 

### Sampling Data Summary Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet

The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATA

Page 7 System #67-Retort #1 Outlet-M29-NMCP.xlsCLIENT: Barrick Goldstrike Mines Inc. Date: 7/23/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #1 Outlet - NMCP PERSONNEL: TS/AN

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 928 554 2510 1331 Net Weight mg 0.928 0.554 2.510 1.331 Concentration gr/dscf 1.62E-04 9.66E-05 4.37E-04 2.32E-04 Concentration g/dscm 3.71E-04 2.21E-04 1.00E-03 5.32E-04 Concentration ug/dscf 10.494 6.270 28.385 15.050 Concentration ug/dscm 370.672 221.488 1002.659 531.606 Emission Rate mg/hr 16.1 9.6 43.2 23.0 Emission Rate lb/hr 3.55E-05 2.11E-05 9.53E-05 5.06E-05 Hg (gaseous) ug 156545 156716 144660 152640 Net Weight mg 156.55 156.72 144.66 152.64 Concentration gr/dscf 2.73E-02 2.73E-02 2.52E-02 2.66E-02 Concentration g/dscm 6.25E-02 6.27E-02 5.78E-02 6.10E-02 Concentration ug/dscf 1770.193 1773.759 1635.941 1726.631 Concentration ug/dscm 62528.881 62654.863 57786.693 60990.145 Emission Rate mg/hr 2718.1 2705.0 2491.4 2638.2 Emission Rate lb/hr 5.99E-03 5.96E-03 5.49E-03 5.82E-03 Total Mercury ug 157473 157270 147170 153971 Total Weight mg 157.47 157.27 147.17 153.97 Concentration gr/dscf 2.74E-02 2.74E-02 2.56E-02 2.68E-02 Concentration g/dscm 6.29E-02 6.29E-02 5.88E-02 6.15E-02 Concentration ug/dscf 1780.69 1780.03 1664.33 1741.68 Concentration ug/dscm 62899.55 62876.35 58789.35 61521.75 Emission Rate mg/hr 2734.3 2714.5 2534.7 2661.2 Emission Rate lb/hr 6.03E-03 5.98E-03 5.59E-03 5.87E-03

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0111 0.0084 0.0137 0.0111 Concentration mg 11.10 8.40 13.70 11.07 Concentration gr/dscf 1.93E-03 1.46E-03 2.39E-03 1.93E-03 Concentration g/dscm 4.43E-03 3.36E-03 5.47E-03 4.42E-03 Emission Rate lb/hr 4.24E-04 3.19E-04 5.19E-04 4.21E-04 M29 - Particulate Emissions - System #67 Retort #1 Outlet Method 29 - Mercury Emissions Summary - System #67 Retort #1 Outlet

Page 8 System #67-Retort #1 Outlet-M29-NMCP.xls

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. Date: 7/22/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #2 Outlet - NMCP PERSONNEL: TS/AN CONDITION:

Method 29 - Mercury

Parameter SYMBOL UNITS Test Number Run 1 Run 2 Run 3 Test Date 22-Jul-08 22-Jul-08 22-Jul-08 Start Time 12:07 14:31 16:47 Stop Time 14:07 16:31 18:47 Calculated Data 3-Run Avg. Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.3632 0.3632 0.3632 0.3632 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.09 0.09 0.09 0.09 Avg Stack Temperature, Ts=ts+460 Ts deg R 552.7 557.4 559.0 556.4 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.55 24.55 24.55 24.55 Avg Meter Temperature, Tm=tm+460 Tm deg R 548.5 550.4 551.1 550.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 89.650 89.971 90.992 90.204 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.538 2.547 2.576 2.554 Net Moisture Gain (Impingers w/SiGel) Ww grams 33.7 26.7 29.8 30.1 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 1.589 1.259 1.405 1.418 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 1.74% 1.38% 1.52% 1.55% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.84 28.84 28.84 28.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.65 28.69 28.67 28.67 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.40 24.40 24.40 24.40 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 6.39 6.41 6.42 6.40 Vsm = 0.3048* Vs Vsm m/sec 1.95 1.95 1.96 1.95 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 33 34 34 34 Stack Gas Flow Rate (STP), Qsw scf/min 26 26 26 26 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.6 25.6 25.5 25.6 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 0.7 0.7 0.7 0.7 Isokinetic Rate, I % 101.00 101.49 102.91 101.80 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 1.0124 1.0070 0.9951 1.0048

Meter Quality Assurance/Quality Check % Diff -0.8% -0.2% 1.0% 0.0% =100*(Y-Yqa)/Y

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg. Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 89.650 89.971 90.992 90.204 cu. m. 2.538 2.547 2.576 2.554 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.6 25.6 25.5 25.6 dscm/min 0.7 0.7 0.7 0.7 

### Sampling Data Summary Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet

The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATA

Page 7 System #67-Retort #2 Outlet-M29-NMCP.xlsCLIENT: Barrick Goldstrike Mines Inc. Date: 7/22/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #2 Outlet - NMCP PERSONNEL: TS/AN

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 218 367 328 304 Net Weight mg 0.218 0.367 0.328 0.304 Concentration gr/dscf 3.74E-05 6.28E-05 5.55E-05 5.19E-05 Concentration g/dscm 8.59E-05 1.44E-04 1.27E-04 1.19E-04 Concentration ug/dscf 2.432 4.079 3.605 3.372 Concentration ug/dscm 85.895 144.087 127.329 119.104 Emission Rate mg/hr 3.7 6.3 5.5 5.2 Emission Rate lb/hr 8.23E-06 1.38E-05 1.22E-05 1.14E-05 Hg (gaseous) ug 29440 43890 39849 37726 Net Weight mg 29.44 43.89 39.85 37.73 Concentration gr/dscf 5.06E-03 7.51E-03 6.74E-03 6.44E-03 Concentration g/dscm 1.16E-02 1.72E-02 1.55E-02 1.48E-02 Concentration ug/dscf 328.388 487.825 437.937 418.050 Concentration ug/dscm 11599.729 17231.528 15469.354 14766.870 Emission Rate mg/hr 504.3 748.2 669.9 640.8 Emission Rate lb/hr 1.11E-03 1.65E-03 1.48E-03 1.41E-03 Total Mercury ug 29658 44257 40177 38031 Total Weight mg 29.66 44.26 40.18 38.03 Concentration gr/dscf 5.09E-03 7.58E-03 6.80E-03 6.49E-03 Concentration g/dscm 1.17E-02 1.74E-02 1.56E-02 1.49E-02 Concentration ug/dscf 330.82 491.90 441.54 421.42 Concentration ug/dscm 11685.62 17375.61 15596.68 14885.97 Emission Rate mg/hr 508.0 754.5 675.4 646.0 Emission Rate lb/hr 1.12E-03 1.66E-03 1.49E-03 1.42E-03

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0055 0.0056 0.0075 0.0062 Concentration mg 5.50 5.60 7.50 6.20 Concentration gr/dscf 9.45E-04 9.59E-04 1.27E-03 1.06E-03 Concentration g/dscm 2.17E-03 2.20E-03 2.91E-03 2.43E-03 Emission Rate lb/hr 2.07E-04 2.10E-04 2.77E-04 2.32E-04 M29 - Particulate Emissions - System #67 Retort #2 Outlet Method 29 - Mercury Emissions Summary - System #67 Retort #2 Outlet

Page 8 System #67-Retort #2 Outlet-M29-NMCP.xls

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. Date: 7/21/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #3 Outlet - NMCP PERSONNEL: TS/AN CONDITION:

Method 29 - Mercury

Parameter SYMBOL UNITS Test Number Run 1 Run 2 Run 3 Test Date 21-Jul-08 21-Jul-08 21-Jul-08 Start Time 13:06 15:26 17:44 Stop Time 15:06 17:26 19:44 Calculated Data 3-Run Avg. Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.3632 0.3632 0.3632 0.3632 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.09 0.09 0.09 0.09 Avg Stack Temperature, Ts=ts+460 Ts deg R 560.6 553.3 552.0 555.3 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.55 24.55 24.55 24.55 Avg Meter Temperature, Tm=tm+460 Tm deg R 562.0 555.1 554.8 557.3 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 88.068 89.111 88.190 88.456 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 2.493 2.523 2.497 2.504 Net Moisture Gain (Impingers w/SiGel) Ww grams 38.1 38.4 37.6 38.0 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 1.796 1.811 1.773 1.793 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 2.00% 1.99% 1.97% 1.99% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.84 28.84 28.84 28.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 28.62 28.62 28.62 28.62 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.40 24.40 24.40 24.40 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 6.43 6.39 6.38 6.40 Vsm = 0.3048* Vs Vsm m/sec 1.96 1.95 1.95 1.95 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 34 33 33 34 Stack Gas Flow Rate (STP), Qsw scf/min 26 26 26 26 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.4 25.5 25.6 25.5 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 0.7 0.7 0.7 0.7 Isokinetic Rate, I % 100.14 100.65 99.49 100.09 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 1.0181 1.0124 1.0233 1.0180

Meter Quality Assurance/Quality Check % Diff -1.3% -0.8% -1.9% -1.3% =100*(Y-Yqa)/Y

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg. Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 88.068 89.111 88.190 88.456 cu. m. 2.493 2.523 2.497 2.504 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 25.4 25.5 25.6 25.5 dscm/min 0.7 0.7 0.7 0.7 

### Sampling Data Summary Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet

The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATA

Page 7 System #67-Retort #3 Outlet-M29-NMCP.xlsCLIENT: Barrick Goldstrike Mines Inc. Date: 7/21/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: System 67, Retort #3 Outlet - NMCP PERSONNEL: TS/AN

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 482 303 131 305 Net Weight mg 0.482 0.303 0.131 0.305 Concentration gr/dscf 8.43E-05 5.24E-05 2.29E-05 5.32E-05 Concentration g/dscm 1.93E-04 1.20E-04 5.25E-05 1.22E-04 Concentration ug/dscf 5.473 3.400 1.485 3.453 Concentration ug/dscm 193.324 120.108 52.470 121.968 Emission Rate mg/hr 8.3 5.2 2.3 5.3 Emission Rate lb/hr 1.84E-05 1.15E-05 5.02E-06 1.16E-05 Hg (gaseous) ug 147450 108640 99800 118630 Net Weight mg 147.45 108.64 99.80 118.63 Concentration gr/dscf 2.58E-02 1.88E-02 1.74E-02 2.07E-02 Concentration g/dscm 5.91E-02 4.31E-02 4.00E-02 4.74E-02 Concentration ug/dscf 1674.266 1219.160 1131.642 1341.689 Concentration ug/dscm 59140.434 43064.644 39973.232 47392.770 Emission Rate mg/hr 2547.5 1867.4 1735.6 2050.2 Emission Rate lb/hr 5.62E-03 4.12E-03 3.83E-03 4.52E-03 Total Mercury ug 147932 108943 99931 118935 Total Weight mg 147.93 108.94 99.93 118.94 Concentration gr/dscf 2.59E-02 1.88E-02 1.75E-02 2.07E-02 Concentration g/dscm 5.93E-02 4.32E-02 4.00E-02 4.75E-02 Concentration ug/dscf 1679.74 1222.56 1133.13 1345.14 Concentration ug/dscm 59333.76 43184.75 40025.70 47514.74 Emission Rate mg/hr 2555.8 1872.6 1737.9 2055.4 Emission Rate lb/hr 5.63E-03 4.13E-03 3.83E-03 4.53E-03

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0115 0.0122 0.0124 0.0120 Concentration mg 11.50 12.20 12.40 12.03 Concentration gr/dscf 2.01E-03 2.11E-03 2.17E-03 2.09E-03 Concentration g/dscm 4.61E-03 4.84E-03 4.97E-03 4.81E-03 Emission Rate lb/hr 4.37E-04 4.61E-04 4.74E-04 4.58E-04 M29 - Particulate Emissions - System #67-Retort #3 Outlet Method 29 - Mercury Emissions Summary - System #67 Retort #3 Outlet

Page 8 System #67-Retort #3 Outlet-M29-NMCP.xls

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/15/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: Barren Tank A PERSONNEL: CONDITION: Normal Load



### M29 Mercury
Parameter SYMBOL UNITS Test Number 123 Test Date 15-Aug-08 15-Aug-08 15-Aug-08 Start Time 0918 1150 1417 Stop Time 1118 1350 1617 Measured Data 3 Run Avg Stack Diameter ds inches 6.00 6.00 6.00 Nozzle Diameter dn inches 0.489 0.489 0.489 Barometric Pressure at Sampling Location Pbar in. Hg 24.58 24.60 24.55 24.58 Stack Static Pressure Pg in. H2O 0.01 0.01 0.00 0.00 Pitot Coefficient cp none 0.8400 0.8400 0.8400 0.8400 Meter Calibration Factors Y none 1.0090 1.0090 1.0090 1.0090 DH@ none 1.8460 1.8460 1.8460 1.8460 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Net Moisture Gain (Impingers w/SiGel) Ww grams 327.5 319.8 306.4 317.9 Average Stack Temperature ts deg F 166.5 162.0 164.8 164.4 Average Meter Temperature tm deg F 94.8 89.7 96.7 93.7 Avg Delta H dH in. H2O 0.10 0.11 0.09 0.10 Average Square Root Delta H ASR dH in. H2O 0.309 0.337 0.291 0.312 Avg Velocity Head dP in. H2O 0.0050 0.0048 0.0048 0.0048 Average Square Root Delta P ASR dP in H2O 0.070 0.069 0.069 0.069 Gas Sample Volume Vm cu. ft. 24.711 26.107 22.377 24.398 Total Sampling Time min minutes 120 120 120 Calculated Data Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.1878 0.1878 0.1878 0.1878 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.20 0.20 0.20 0.20 Avg Stack Temperature, Ts=ts+460 Ts deg R 626.5 622.0 624.8 624.4 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.59 24.61 24.56 24.58 Avg Meter Temperature, Tm=tm+460 Tm deg R 554.8 549.7 556.7 553.7 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 19.502 20.811 17.576 19.296 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 0.552 0.589 0.498 0.546 Net Moisture Gain (Impingers w/SiGel) Ww grams 327.5 319.8 306.4 317.9 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 15.442 15.079 14.447 14.989 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 44.19% 42.01% 45.11% 43.77% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.84 28.84 28.84 28.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 24.05 24.28 23.95 24.09 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.58 24.60 24.55 24.58 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 5.18 5.08 5.09 5.12 Vsm = 0.3048* Vs Vsm m/sec 1.58 1.55 1.55 1.56 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 61 60 60 60 Stack Gas Flow Rate (STP), Qsw scf/min 42 42 42 42 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 23.6 24.2 22.8 23.5 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 0.7 0.7 0.6 0.7 Isokinetic Rate, I % 103.70 107.77 96.66 102.71 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 0.9385 0.9649 0.9779 0.9604

Meter Quality Assurance/Quality Check % Diff 7.0% 4.4% 3.1% 4.8% =100*(Y-Yqa)/Y Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATACLIENT: Barrick Goldstrike Mines Inc. DATES: 8/15/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: Barren Tank A PERSONNEL: CONDITION: Normal Load
Parameter SYMBOL UNITS 1 2 3 3 Run Avg Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 19.502 20.811 17.576 19.296 cu. m. 0.552 0.589 0.498 0.546 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 23.6 24.2 22.8 23.5 dscm/min 0.7 0.7 0.6 0.7

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 0.36 0.45 0.15 0.32 Net Weight mg 0.0004 0.0005 0.0002 0.000 Concentration gr/dscf 2.84E-07 3.33E-07 1.31E-07 2.50E-07 Concentration g/dscm 6.52E-07 7.64E-07 3.01E-07 5.72E-07 Concentration ug/dscf 0.018 0.022 0.009 0.016 Concentration ug/dscm 0.652 0.764 0.301 0.572 Emission Rate mg/hr 0.0 0.0 0.0 0.0 Emission Rate lb/hr 5.76E-08 6.93E-08 2.58E-08 5.09E-08 Hg (gaseous) ug 1841.4 549.0 535.3 975.2 Net Weight mg 1.84 0.55 0.54 0.98 Concentration gr/dscf 1.45E-03 4.06E-04 4.69E-04 7.76E-04 Concentration g/dscm 3.34E-03 9.32E-04 1.08E-03 1.78E-03 Concentration ug/dscf 94.422 26.381 30.457 50.420 Concentration ug/dscm 3335.293 931.847 1075.825 1780.988 Emission Rate mg/hr 133.7 38.3 41.7 71.2 Emission Rate lb/hr 2.95E-04 8.45E-05 9.19E-05 1.57E-04

Total Mercur y ug 1841.8 549.5 535.5 975.6 Total Weight mg 1.84 0.55 0.54 0.98 Concentration gr/dscf 1.45E-03 4.07E-04 4.69E-04 7.77E-04 Concentration g/dscm 3.34E-03 9.33E-04 1.08E-03 1.78E-03 Concentration ug/dscf 94.441 26.402 30.465 50.436 Concentration ug/dscm 3335.945 932.611 1076.126 1781.561 Emission Rate mg/hr 133.7 38.4 41.7 71.3 Emission Rate lb/hr 2.95E-04 8.46E-05 9.19E-05 1.57E-04

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0118 0.0222 0.0181 0.0174 Concentration mg 11.80 22.20 18.10 17.37 Concentration gr/dscf 9.32E-03 1.64E-02 1.59E-02 1.39E-02 Concentration g/dscm 2.14E-02 3.77E-02 3.64E-02 3.18E-02 Emission Rate lb/hr 1.88E-03 3.41E-03 3.10E-03 2.80E-03 M29 - Particulate Emissions - Barren A Tank 

### Sampling Data Summary

Method 29 - Mercury Emissions Summary - Barren A Tank

# TRC Environmental Corp. EMISSION MEASUREMENTS DEPARTMENT

CLIENT: Barrick Goldstrike Mines Inc. DATES: 8/14/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: Barren Tank B PERSONNEL: CONDITION: Normal Load



### M29 Mercury
Parameter SYMBOL UNITS Test Number 123 Test Date 14-Aug-08 14-Aug-08 14-Aug-08 Start Time 1004 1220 1515 Stop Time 1204 1420 1715 Measured Data 3 Run Avg Stack Diameter ds inches 6.00 6.00 6.00 Nozzle Diameter dn inches 0.399 0.399 0.489 Barometric Pressure at Sampling Location Pbar in. Hg 24.65 24.60 24.55 24.60 Stack Static Pressure Pg in. H2O 0.00 0.00 0.00 0.00 Pitot Coefficient cp none 0.8400 0.8400 0.8400 0.8400 Meter Calibration Factors Y none 1.0090 1.0090 1.0090 1.0090 DH@ none 1.8460 1.8460 1.8460 1.8460 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Net Moisture Gain (Impingers w/SiGel) Ww grams 198.3 172.5 194.6 188.5 Average Stack Temperature ts deg F 162.3 163.0 166.5 163.9 Average Meter Temperature tm deg F 89.3 94.8 97.6 93.9 Avg Delta H dH in. H2O 0.05 0.03 0.06 0.05 Average Square Root Delta H ASR dH in. H2O 0.210 0.170 0.242 0.207 Avg Velocity Head dP in. H2O 0.0052 0.0029 0.0025 0.0035 Average Square Root Delta P ASR dP in H2O 0.066 0.054 0.049 0.057 Gas Sample Volume Vm cu. ft. 15.357 13.282 17.149 15.263 Total Sampling Time min minutes 120 120 120 Calculated Data Nozzle Area, An=3.14159*(dn/2)^2 An sq. in. 0.1250 0.1250 0.1878 0.1460 Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 0.20 0.20 0.20 0.20 Avg Stack Temperature, Ts=ts+460 Ts deg R 622.3 623.0 626.5 623.9 Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 24.65 24.60 24.55 24.60 Avg Meter Temperature, Tm=tm+460 Tm deg R 549.3 554.8 557.6 553.9 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 12.272 10.487 13.447 12.069 Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 0.347 0.297 0.381 0.342 Net Moisture Gain (Impingers w/SiGel) Ww grams 198.3 172.5 194.6 188.5 Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 9.350 8.133 9.175 8.886 Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 43.24% 43.68% 40.56% 42.49% Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.84 28.84 28.84 28.84 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2))) Wet Stack Gas Molecular Weight Mws g/g-mole 24.15 24.10 24.44 24.23 Mw = Md* (1-Bws)+(18*(Bws)) Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 24.65 24.60 24.55 24.60 Stack Gas Velocity Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 4.88 3.97 3.61 4.15 Vsm = 0.3048* Vs Vsm m/sec 1.49 1.21 1.10 1.27 Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 58 47 43 49 Stack Gas Flow Rate (STP), Qsw scf/min 40 33 29 34 Qsw = 528/29.92 * Qa * (Ps/Ts) Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 22.8 18.3 17.5 19.5 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 0.6 0.5 0.5 0.6 Isokinetic Rate, I % 101.36 107.79 96.50 101.88 I =100*As*Vm(std)/min*(An/144)*Qsd Meter Calibration (Alternate Method) Yqa none 1.0206 0.9635 1.0645 1.0162

Meter Quality Assurance/Quality Check % Diff -1.1% 4.5% -5.5% -0.7% =100*(Y-Yqa)/Y Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md)) ^0.5 *ASRdH 

## Calculation Sheet The table below contains the results of testing and calculations performed by TRC on the date(s) listed.

DATACLIENT: Barrick Goldstrike Mines Inc. DATES: 8/14/2008 LOCATION: Eureka County, Nevada PROJECT NO.: 159912 UNIT: Barren Tank B PERSONNEL: CONDITION: Normal Load
Parameter SYMBOL UNITS 1 2 3 3 Run Avg Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O2 % 20.9 20.9 20.9 20.9 Stack Gas Carbon Dioxide Content CO2 % 0.0 0.0 0.0 0.0 Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 12.272 10.487 13.447 12.069 cu. m. 0.347 0.297 0.381 0.342 Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 22.8 18.3 17.5 19.5 dscm/min 0.6 0.5 0.5 0.6

Parameter UNITS Run 1 Run 2 Run 3 AVG Hg (particle bound) ug 0.85 3.9 2.1 2.3 Net Weight mg 0.0009 0.0039 0.0021 0.002 Concentration gr/dscf 1.07E-06 5.73E-06 2.40E-06 3.07E-06 Concentration g/dscm 2.45E-06 1.31E-05 5.52E-06 7.03E-06 Concentration ug/dscf 0.069 0.372 0.156 0.199 Concentration ug/dscm 2.447 13.137 5.516 7.033 Emission Rate mg/hr 0.1 0.4 0.2 0.2 Emission Rate lb/hr 2.09E-07 9.02E-07 3.61E-07 4.91E-07 Hg (gaseous) ug 893.8 2473.6 2432.0 1933.1 Net Weight mg 0.89 2.47 2.43 1.93 Concentration gr/dscf 1.12E-03 3.63E-03 2.79E-03 2.51E-03 Concentration g/dscm 2.57E-03 8.33E-03 6.39E-03 5.76E-03 Concentration ug/dscf 72.832 235.881 180.853 163.189 Concentration ug/dscm 2572.665 8332.056 6388.315 5764.346 Emission Rate mg/hr 99.7 259.5 189.7 183.0 Emission Rate lb/hr 2.20E-04 5.72E-04 4.18E-04 4.03E-04

Total Mercur y ug 894.7 2477.5 2434.1 1935.4 Total Weight mg 0.89 2.48 2.43 1.94 Concentration gr/dscf 1.12E-03 3.64E-03 2.79E-03 2.52E-03 Concentration g/dscm 2.58E-03 8.35E-03 6.39E-03 5.77E-03 Concentration ug/dscf 72.901 236.252 181.009 163.388 Concentration ug/dscm 2575.112 8345.193 6393.832 5771.379 Emission Rate mg/hr 99.8 259.9 189.9 183.2 Emission Rate lb/hr 2.20E-04 5.73E-04 4.19E-04 4.04E-04

Parameter UNITS Run 1 Run 2 Run 3 AVG Particulate Net Weight grams 0.0344 0.0781 0.0161 0.0429 Concentration mg 34.40 78.10 16.10 42.87 Concentration gr/dscf 4.32E-02 1.15E-01 1.84E-02 5.88E-02 Concentration g/dscm 9.90E-02 2.63E-01 4.23E-02 1.35E-01 Emission Rate lb/hr 8.44E-03 1.80E-02 2.76E-03 9.74E-03 M29 - Particulate Emissions - Barren B Tank 

### Sampling Data Summary

Method 29 - Mercury Emissions Summary - Barren B Tank

## 123

1010-1320 1320-1526 1555-1800 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 20.0 19.0 14.0 Stack Gas Carbon Dioxide Content CO 2 

### % 41.0 42.0 50.0 

## Average Percent Moisture Bws % 0.11 0.11 0.12 0.11 Isokinetic Rate I % 101.30 101.21 104.42 102.31 Average Stack Temperature ts deg F 657.6 659.2 661.6 659.5 Average Meter Temperature tm deg F 78.6 81.0 85.0 81.5 Avg Velocity Head dP in. H 2 

### O 0.67 0.69 0.71 0.69 Avg Delta H dH in. H 2 

### O 1.50 1.46 1.50 1.49 Gas Sample Volume Vm cu. ft. 78.893 79.695 81.934 80.174 Vm(std) cu. ft. 64.197 64.553 66.292 65.014 cu. m. 1.817 1.827 1.877 1.841 Vs ft/sec 68.11 69.21 69.11 68.81 m/sec 20.76 21.10 21.06 20.97 Qsd dscf/min 20,164.5 20,294.2 20,200.8 20219.8 dscm/min 570.86 574.53 571.88 572.42 Mercury Results mg 0.00098 0.00260 0.00096 0.00151 gr/dscf 2.35E-07 6.20E-07 2.23E-07 3.59E-07 g/dscm 5.39E-07 1.42E-06 5.12E-07 8.24E-07

lb/hr 4.06E-05 1.08E-04 3.86E-05 6.24E-05 mg 0.12695 0.16204 0.22353 0.17084 gr/dscf 3.05E-05 3.87E-05 5.19E-05 4.03E-05 g/dscm 6.99E-05 8.87E-05 1.19E-04 9.25E-05

lb/hr 5.26E-03 6.72E-03 8.99E-03 6.99E-03 mg 0.12793 0.16464 0.22449 0.17235 gr/dscf 3.07E-05 3.93E-05 5.22E-05 4.07E-05 g/dscm 7.04E-05 9.01E-05 1.20E-04 9.34E-05

lb/hr 5.30E-03 6.83E-03 9.03E-03 7.06E-03

mg 11.50 15.40 12.70 13.20 mg 3.10 4.90 14.30 7.43 mg 14.60 20.30 27.00 20.63 gr/dscf 3.50E-03 4.84E-03 6.27E-03 4.87E-03 g/dscm 8.03E-03 1.11E-02 1.44E-02 1.12E-02

lb/hr 6.05E-01 8.42E-01 1.09E+00 8.45E-01 

# System 18 Roaster - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date Run Times

Gas Sample Volume (Standard Conditions) 8-Dec-08

Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Grain Loading Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected

## 4 3 4 9-Dec-08 9-Dec-08 9-Dec-08 1730-1936 1555-1800 1730-1936 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 18.0 14.0 18.0 Stack Gas Carbon Dioxide Content CO 2 

### % 44.0 50.0 44.0 

## Average Percent Moisture Bws % 0.14 0.12 0.12 0.13 Isokinetic Rate I % 100.65 105.08 99.12 101.62 Average Stack Temperature ts deg F 667.7 661.6 667.7 665.7 Average Meter Temperature tm deg F 82.6 85.0 82.6 83.4 Avg Velocity Head dP in. H 2 

### O 0.78 0.71 0.78 0.75 Avg Delta H dH in. H 2 

### O 1.65 1.50 1.65 1.6 Gas Sample Volume Vm cu. ft. 81.496 81.934 81.496 81.642 Vm(std) cu. ft. 66.454 66.755 66.454 66.554 cu. m. 1.881 1.890 1.881 1.884 Vs ft/sec 73.99 69.10 73.65 72.25 m/sec 22.55 21.06 22.45 22.02 Qsd dscf/min 21,007.3 20,213.7 21,333.3 20851.4 dscm/min 594.72 572.25 603.94 590.30
mg 0.00096 0.00096 0.00059 0.00084 gr/dscf 0.0000002 0.0000002 0.0000001 0.0000002 g/dscm 0.0000005 0.0000005 0.0000003 0.0000004

lb/hr 0.00004 0.00004 0.00003 0.00003 mg 0.22353 0.22353 0.26114 0.2361 gr/dscf 0.0000518 0.00005 0.0000605 0.000055 g/dscm 0.0001188 0.0001183 0.0001388 0.0001253

lb/hr 0.00933 0.00893 0.01107 0.00978 mg 0.22449 0.22449 0.26173 0.23690 gr/dscf 0.000052 0.000052 0.0000607 0.000055 g/dscm 0.000119 0.000119 0.000139 0.000126

lb/hr 0.00937 0.00897 0.01109 0.00981

mg 24.40 12.70 24.40 20.50 mg 13.60 14.30 13.60 13.83 mg 38.00 27.00 38.00 34.33 gr/dscf 0.0088 0.0062 0.0088 0.0079 g/dscm 0.0202 0.0143 0.0202 0.0182

lb/hr 1.586 1.079 1.610 1.425 Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Grain Loading Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound 

# System 18 Roaster - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date Run Times

Gas Sample Volume (Standard Conditions)

## 123

0910-1119 1150-1403 1440-1645 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 21.0 21.0 21.0 Stack Gas Carbon Dioxide Content CO 2 

### % 1.0 1.0 1.0 

## Average Percent Moisture Bws % 0.03 0.03 0.04 0.04 Isokinetic Rate I % 95.44 94.75 96.13 95.44 Average Stack Temperature ts deg F 107.3 108.3 108.2 107.9 Average Meter Temperature tm deg F 68.2 74.9 71.6 71.5 Avg Velocity Head dP in. H 2 

### O 0.33 0.35 0.35 0.34 Avg Delta H dH in. H 2 

### O 1.34 1.43 1.41 1.39 Gas Sample Volume Vm cu. ft. 81.881 84.985 84.780 83.882 Vm(std) cu. ft. 68.177 70.045 70.304 69.509 cu. m. 1.930 1.983 1.990 1.968 Vs ft/sec 36.71 37.94 37.83 37.49 m/sec 11.19 11.57 11.53 11.43 Qsd dscf/min 5,191.4 5,372.7 5,314.9 5293 dscm/min 146.97 152.10 150.46 149.84 Mercury Results mg 0.00120 0.00042 0.00025 0.00062 gr/dscf 2.71E-07 9.23E-08 5.48E-08 1.39E-07 g/dscm 6.22E-07 2.12E-07 1.26E-07 3.20E-07

lb/hr 1.21E-05 4.25E-06 2.49E-06 6.27E-06 mg 0.16229 0.14096 0.22825 0.1772 gr/dscf 3.67E-05 3.10E-05 5.00E-05 3.92E-05 g/dscm 8.41E-05 7.11E-05 1.15E-04 9.00E-05

lb/hr 1.63E-03 1.43E-03 2.28E-03 1.78E-03 mg 0.16349 0.14138 0.22850 0.17779 gr/dscf 3.69E-05 3.11E-05 5.01E-05 3.94E-05 g/dscm 8.47E-05 7.13E-05 1.15E-04 9.03E-05

lb/hr 1.64E-03 1.43E-03 2.28E-03 1.78E-03

mg 4.80 2.30 1.90 3.00 mg 1.20 0.90 2.30 1.47 mg 6.00 3.20 4.20 4.47 gr/dscf 1.36E-03 7.04E-04 9.20E-04 9.93E-04 g/dscm 3.11E-03 1.61E-03 2.11E-03 2.28E-03

lb/hr 6.03E-02 3.24E-02 4.19E-02 4.49E-02 Grain Loading Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected Mercury (Hg) - Gaseous

Mercury (Hg) - Total Gas Sample Volume (Standard Conditions)
Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound 

# System 19 North Quench - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date 

## 9-Dec-08 Run Times

## 123

0930-1134 1205-1409 1430-1635 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 21.0 21.0 21.0 Stack Gas Carbon Dioxide Content CO 2 

### % 1.0 1.0 1.0 

## Average Percent Moisture Bws % 0.04 0.04 0.04 0.04 Isokinetic Rate I % 95.46 95.76 95.43 95.55 Average Stack Temperature ts deg F 108.5 109.5 109.7 109.2 Average Meter Temperature tm deg F 82.6 82.2 78.4 81.1 Avg Velocity Head dP in. H 2 

### O 1.17 1.20 1.20 1.19 Avg Delta H dH in. H 2 

### O 2.36 2.41 2.38 2.38 Gas Sample Volume Vm cu. ft. 110.538 111.858 110.520 110.972 Vm(std) cu. ft. 88.711 89.860 89.403 89.325 cu. m. 2.511 2.544 2.531 2.529 Vs ft/sec 69.97 70.92 70.73 70.54 m/sec 21.33 21.62 21.56 21.5 Qsd dscf/min 9,650.1 9,743.8 9,728.6 9707.5 dscm/min 273.19 275.85 275.42 274.82 Mercury Results mg 0.00092 0.00058 0.04160 0.01437 gr/dscf 1.60E-07 9.94E-08 7.17E-06 2.47E-06 g/dscm 3.66E-07 2.28E-07 1.64E-05 5.68E-06

lb/hr 1.32E-05 8.30E-06 5.98E-04 2.06E-04 mg 0.99350 0.71882 0.53428 0.7489 gr/dscf 1.72E-04 1.23E-04 9.20E-05 1.29E-04 g/dscm 3.96E-04 2.83E-04 2.11E-04 2.96E-04

lb/hr 1.43E-02 1.03E-02 7.67E-03 1.07E-02 mg 0.99442 0.71940 0.57588 0.76323 gr/dscf 1.73E-04 1.23E-04 9.92E-05 1.32E-04 g/dscm 3.96E-04 2.83E-04 2.28E-04 3.02E-04

lb/hr 1.43E-02 1.03E-02 8.27E-03 1.09E-02

mg 2.10 3.10 2.40 2.53 mg 1.20 2.10 2.00 1.77 mg 3.30 5.20 4.40 4.30 gr/dscf 5.73E-04 8.91E-04 7.58E-04 7.41E-04 g/dscm 1.31E-03 2.04E-03 1.74E-03 1.70E-03

lb/hr 4.74E-02 7.44E-02 6.32E-02 6.17E-02 

# System 19 South Quench - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date 

## 12-Dec-08 Run Times

Gas Sample Volume (Standard Conditions)
Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Grain Loading Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected

## 123

1200-1413 1455-1702 1735-1938 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 21.0 21.0 21.0 Stack Gas Carbon Dioxide Content CO 2 

### % 1.0 1.0 1.0 

## Average Percent Moisture Bws % 0.01 0.01 0.01 0.01 Isokinetic Rate I % 94.39 97.65 95.11 95.72 Average Stack Temperature ts deg F 104.1 102.0 99.3 101.8 Average Meter Temperature tm deg F 70.6 58.1 50.1 59.6 Avg Velocity Head dP in. H 2 

### O 1.17 1.20 1.18 1.18 Avg Delta H dH in. H 2 

### O 2.47 2.48 2.40 2.45 Gas Sample Volume Vm cu. ft. 108.649 112.980 107.628 109.752 Vm(std) cu. ft. 90.698 96.592 93.434 93.574 cu. m. 2.568 2.735 2.645 2.649 Vs ft/sec 67.62 69.36 68.46 68.48 m/sec 20.61 21.14 20.87 20.87 Qsd dscf/min 2,248.8 2,315.2 2,299.2 2287.7 dscm/min 63.66 65.54 65.09 64.77 Mercury Results mg 0.05860 0.03410 0.02120 0.03797 gr/dscf 9.95E-06 5.44E-06 3.49E-06 6.29E-06 g/dscm 2.28E-05 1.25E-05 8.01E-06 1.44E-05

lb/hr 1.92E-04 1.08E-04 6.89E-05 1.23E-04 mg 0.94120 0.68459 0.33620 0.6540 gr/dscf 1.60E-04 1.09E-04 5.54E-05 1.08E-04 g/dscm 3.67E-04 2.50E-04 1.27E-04 2.48E-04

lb/hr 3.08E-03 2.17E-03 1.09E-03 2.11E-03 mg 0.99980 0.71869 0.35740 0.69196 gr/dscf 1.70E-04 1.15E-04 5.89E-05 1.14E-04 g/dscm 3.89E-04 2.63E-04 1.35E-04 2.62E-04

lb/hr 3.27E-03 2.27E-03 1.16E-03 2.24E-03

mg 6.40 4.90 7.90 6.40 mg 9.70 6.10 4.60 6.80 mg 16.10 11.00 12.50 13.20 gr/dscf 2.73E-03 1.75E-03 2.06E-03 2.18E-03 g/dscm 6.27E-03 4.02E-03 4.73E-03 5.01E-03

lb/hr 5.27E-02 3.48E-02 4.06E-02 4.27E-02 

# System 61 Preg and Barren A Tanks - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date 

## 10-Dec-08 Run Times

Gas Sample Volume (Standard Conditions)
Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound

Mercury (Hg) - Gaseous

Mercury (Hg) - Total

Grain Loading Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected

## 123

0830-1034 1055-1345 1405-1608 SYMBOL UNITS Total Sampling Time min minutes 120 120 120 Stack Gas Oxygen Content O 2 

### % 21.0 21.0 21.0 Stack Gas Carbon Dioxide Content CO 2 

### % 1.0 1.0 1.0 

## Average Percent Moisture Bws % 0.01 0.01 0.01 0.01 Isokinetic Rate I % 94.31 96.67 95.53 95.5 Average Stack Temperature ts deg F 104.1 101.3 107.3 104.2 Average Meter Temperature tm deg F 70.6 54.3 65.8 63.6 Avg Velocity Head dP in. H 2 

### O 1.17 1.13 1.21 1.17 Avg Delta H dH in. H 2 

### O 2.47 2.31 2.50 2.43 Gas Sample Volume Vm cu. ft. 108.649 107.610 111.723 109.327 Vm(std) cu. ft. 90.298 92.152 93.306 91.918 cu. m. 2.556 2.609 2.641 2.602 Vs ft/sec 67.89 67.41 70.18 68.49 m/sec 20.69 20.55 21.39 20.88 Qsd dscf/min 2,240.9 2,231.0 2,285.9 2252.6 dscm/min 63.44 63.16 64.71 63.77 Mercury Results mg 0.01290 0.01270 0.01920 0.01493 gr/dscf 2.20E-06 2.12E-06 3.17E-06 2.50E-06 g/dscm 5.05E-06 4.87E-06 7.27E-06 5.73E-06

lb/hr 4.23E-05 4.06E-05 6.21E-05 4.83E-05 mg 0.17888 0.64640 0.56660 0.4640 gr/dscf 3.05E-05 1.08E-04 9.35E-05 7.73E-05 g/dscm 7.00E-05 2.48E-04 2.14E-04 1.77E-04

lb/hr 5.86E-04 2.07E-03 1.83E-03 1.49E-03 mg 0.19178 0.65910 0.58580 0.47889 gr/dscf 3.27E-05 1.10E-04 9.67E-05 7.98E-05 g/dscm 7.50E-05 2.53E-04 2.22E-04 1.83E-04

lb/hr 6.28E-04 2.11E-03 1.89E-03 1.54E-03

mg 4.50 3.10 3.70 3.77 mg 4.50 5.10 8.00 5.87 mg 9.00 8.20 11.70 9.63 gr/dscf 1.53E-03 1.37E-03 1.93E-03 1.61E-03 g/dscm 3.52E-03 3.14E-03 4.43E-03 3.70E-03

lb/hr 2.95E-02 2.62E-02 3.78E-02 3.12E-02 Grain Loading Grain Loading Emission Rate Particulate Matter Results Front Half Rinse Particulate Filter Total Particulate Collected Mercury (Hg) - Gaseous

Mercury (Hg) - Total Gas Sample Volume (Standard Conditions)
Stack Gas Velocity
Dry Stack Gas Flow Rate (Dry, STP)

Mercury (Hg) - Particulate Bound 

# System 61 Preg and Barren B Tanks - Mercury Emission Summary EPA M29 Mercury Run Number

Run Date 

## 11-Dec-08 Run Times