From: Rob Bamford [mailto:rbamford@ndep.nv.gov] 

Sent: Friday, August 13, 2010 1:25 PM 

To: 'French.Chuck@epamail.epa.gov'; Branscome, Marvin R. 

Cc: Mike Elges 

Subject: NV Mine Data dump with lbs/hr 

Hello Chuck and Marvin,

 

I attached a revised data dump with the lbs/hr data for each run (with the gr/dscf). The 

query specified 2006 and newer data, valid method 29. Prior to 2006 stack test 

protocols were not as specific nor did the reports receive the level of scrutiny required 

with the NMCP. 

 

I would provide a word of caution regarding furnace and retort batch/throughput data. 

We are still finding companies that report batch processes as continuous processes 

which gives incorrect values. For example folks that furnace melt a 300lb charge over 3 

hours still have a tendency to report 100lbs/hr instead of 300lbs/hr for 3 hours. I have 

more confidence in the retort than furnace numbers, but if you get something that looks 

odd, this is probably why. 

 

What we do have high confidence in is that the tested emissions values are 

representative of current operations. In our protocols we had the companies provide 

the monthly production values for the previous 12 months prior to the test to establish a 

test rate representative of operations. In conclusion, I would say we have high 

confidence that the tested values were at representative throughputs, but the reported 

batch values may inaccurate. I wanted to be clear in this for your decision-making and 

calculations, since I don't fully understand how you need to use the data for your task at 

hand.

 

I will work on getting the PDF stack test summary sheets together. As always, if you 

have any questions please let us know.

 

-Rob

 

Rob Bamford 

Supervisor, Nevada Mercury Control 

Program

Nevada Division of Environmental 

Protection

Bureau of Air Quality Planning

Phone: 775-687-9330 

Cell: 775-315-3655 

Fax: 775-687-6396 

E-mail: rbamford@ndep.nv.gov
FIN Facility Company Unit Type Date .1 System . Unit . 

Material Concentration (ppm) 

Throughput_TPH 

Permitted_ TPH 

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Roaster 5/31/2006 18 S2.209 20.5 812.2999878 10

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 3/12/2007 16A S2.206 11.5 342 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 3/14/2007 15 A S2.204 11.60000038 409 5

A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 7/25/2007 40 S2.036 8 84.30000305 1

A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 7/26/2007 42 S2.041 10 84.65000153 1

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Roaster 7/31/2007 18 S2.209 16.38999939 774 10

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 8/3/2007 15A S2.204 20.45000076 381.5 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 8/4/2007 16A S2.206 20.34000015 379 5

A0002 Gold Quarry Newmont Mining 

Quench Circuit 10/16/2007 47 

S2.158-S2.159 15.5 510.1000061 5

A0002 Gold Quarry Newmont Mining Pre-Heater 10/16/2007 43 

S2.126 & S2.129 15.5 510.1000061 5

A0002 Gold Quarry Newmont Mining Roaster 10/16/2007 44 

S2.133 & S2.145 15.5 510.1000061 5

A0002 Gold Quarry Newmont Mining 

Quench Circuit 10/16/2007 51 

S2.160-S2.161 15.5 510.1000061 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 10/22/2007 15 A S2.204 14.92000008 341.7000122 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 10/22/2007 15 A S2.204 14.92000008 341.7000122 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 10/23/2007 16 A S2.206 9.569999695 336 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Roaster 10/25/2007 18 S2.209 9 711 10

A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 6/12/2008 42 S2.041 13.44999981 96 1

A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 6/13/2008 40 S2.036 14.94999981 96 1

A0002 Gold Quarry Newmont Mining Pre-Heater 6/27/2008 43 

S2.126 & S2.129 15.60000038 474.2999878 5

A0002 Gold Quarry Newmont Mining Roaster 6/27/2008 44 

S2.133 & S2.145 13.89999962 474.2999878 5

A0002 Gold Quarry Newmont Mining 

Quench Circuit 7/8/2008 47 

S2.158-S2.159 0.349999994 501.1000061 5
FIN Facility Company Unit Type Date .1 System . Unit . 

Material Concentration (ppm) 

Throughput_TPH 

Permitted_ TPH 

A0003 Twin Creeks Newmont Mining Autoclave 8/18/2008 14 S2.023 29.70000076 242 2A0003 Twin Creeks Newmont Mining Autoclave 8/21/2008 14 S2.024 44.33000183 239.3000031 2A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 7/9/2009 15 S2.204 18.29999924 353.8999939 5

A0002 Gold Quarry Newmont Mining Roaster 7/10/2009 43 

S2.133 & S2.145 12.89999962 463 5

A0002 Gold Quarry Newmont Mining Pre-Heater 7/10/2009 43 

S2.126 & S2.129 12.89999962 463 5

A0002 Gold Quarry Newmont Mining 

Quench Circuit 7/10/2009 47 

S2.158 & S2.159 0.501999974 463 5

A0002 Gold Quarry Newmont Mining 

Quench Circuit 7/10/2009 51 

S2.160 & S2.161 0.467999995 463 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. 

Quench Circuit 7/13/2009 19 S2.211 23 365 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. 

Quench Circuit 7/13/2009 19 S2.210 23 365 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Roaster 7/14/2009 18 

S2.209.1 and S2.209.2 22.70000076 768 10

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Pre-Heater 7/14/2009 16 S2.206 22.29999924 345.3999939 5

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Autoclave 7/23/2009 66 S2.018 4 119 2

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Autoclave 7/24/2009 66 

S2.019 and S2.020 4.5 135 2

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Autoclave 7/28/2009 66 

S2.016 and S2.017 7.150000095 131 2

A0005 Goldstrike 

Barrick Goldstrike Mines, Inc. Autoclave 7/29/2009 66 S2.015 8 112 1

A0003 Twin Creeks Newmont Mining Autoclave 11/3/2009 34.70000076 247.8999939 2A0003 Twin Creeks Newmont Mining Autoclave 11/5/2009 40.40000153 236.5 2A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 12/3/2009 42 S2.041 11 68 

A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 12/5/2009 40 S2.037 13 70.40000153 

A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 1/20/2010 42 S2.041 11 70.30000305 

A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 1/22/2010 40 S2.037 9 68.30000305 

A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 2/22/2010 42 S2.041 11 69.40000153 

A0004 Jerritt Canyon 

Yukon Nevada Gold Roaster 2/24/2010 40 S2.037 11.30000019 68.90000153 
FIN Facility Company Unit Type Date .1 System . Unit . 

Material Concentration (ppm) 

Throughput_TPH 

Permitted_ TPH 

A0004 Jerritt Canyon 

Yukon- Nevada Gold Ore Dryer 2/26/2010 35 S2.026.1 6.300000191 155.3300018 3

A0003 Twin Creeks Newmont Mining Autoclave 3/9/2010 20.46999931 245 2A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 4/27/2010 42 S2.041 10.69999981 67.40000153 1

A0004 Jerritt Canyon 

Queenstake Resources U.S.A., Inc. Roaster 4/29/2010 40 S2.036 10 68.93000031 1

A0003 Twin Creeks Newmont Mining Autoclave 5/3/2010 S2.023A 28.5 234 2
Facility Unit Type 

Hg Concentration .1 (g/dscf) 

Hg Concentration .2 (g/dscf) 

Hg Concentration .3 (g/dscf) 

Average (g/dscf) 

Goldstrike Roaster 0.00012684 0.00016508 0.00018221 Goldstrike Pre-Heater 3.596E-05 7.72E-06 1.17E-06 Goldstrike Pre-Heater 1.06E-06 7.6E-07 6.6E-07 Jerritt Canyon Roaster 0.012793 0.000808 0.001195 Jerritt Canyon Roaster 0.003839 0.000627 0.000268 Goldstrike Roaster 0.0006207 0.0004796 0.0004492 Goldstrike Pre-Heater 0.00038843 3.843E-05 2.037E-05 Goldstrike Pre-Heater 1.204E-05 8.64E-06 1.235E-05 Gold Quarry 

Quench Circuit 0.000113 8.1E-05 1E-04 

Gold Quarry Pre-Heater 9E-06 4E-06 3E-06 Gold Quarry Roaster 3E-06 2E-06 2E-06 Gold Quarry 

Quench Circuit 0.000147 0.000116 8.4E-05 

Goldstrike Pre-Heater 3.09E-06 1.7E-06 4.6E-07 Goldstrike Pre-Heater 2.31E-06 2.01E-05 3.1E-07 Goldstrike Pre-Heater 2.78E-06 1.39E-06 6.2E-07 Goldstrike Roaster 9.923E-05 9.46E-05 0.0001315 Jerritt Canyon Roaster 0.000994 0.000643 0.000327 Jerritt Canyon Roaster 0.000273 0.000251 0.000159 Gold Quarry Pre-Heater 2E-05 1.9E-05 0.000106 Gold Quarry Roaster 4E-06 5E-06 2E-06 Gold Quarry 

Quench Circuit 7.5E-05 8.7E-05 0.000121 

Twin Creeks Autoclave 0.00096 0.0019 0.0023 Twin Creeks Autoclave 0.00046 0.0009 0.00066 Goldstrike Pre-Heater 4.98E-07 7.63E-07 5.39E-07 Gold Quarry Roaster 1.34E-06 7.58E-07 9.69E-07 Gold Quarry Pre-Heater 5.69E-06 2.62E-06 2.14E-06 
Facility Unit Type 

Hg Concentration .1 (g/dscf) 

Hg Concentration .2 (g/dscf) 

Hg Concentration .3 (g/dscf) 

Average (g/dscf) 

Gold Quarry 

Quench Circuit 6.63E-05 8.27E-05 7.79E-05 

Gold Quarry 

Quench Circuit 6.19E-05 8.02E-05 7.72E-05 

Goldstrike 

Quench Circuit 5.48E-05 5.79E-05 5.02E-05 

Goldstrike 

Quench Circuit 6.71E-05 4.55E-05 4.38E-05 

Goldstrike Roaster 0.000139 0.000124 9.34E-05 Goldstrike Pre-Heater 1.34E-05 7.16E-06 2.64E-06 Goldstrike Autoclave 0.000143 1.92E-05 2.39E-05 Goldstrike Autoclave 5.7E-05 3.44E-05 1.82E-05 Goldstrike Autoclave 2.71E-05 2.65E-05 2.29E-05 Goldstrike Autoclave 4.4E-05 6.25E-05 7.12E-05 Twin Creeks Autoclave 0.00077 0.000491 0.000458 Twin Creeks Autoclave 0.000327 0.000213 0.000191 Jerritt Canyon Roaster 0.00158 0.00212 0.00139 Jerritt Canyon Roaster 0.000555 0.000213 0.000208 Jerritt Canyon Roaster 0.000229 0.000201 0.000108 Jerritt Canyon Roaster 0.000133 0.000131 0.000152 Jerritt Canyon Roaster 0.0019 0.000479 0.000457 Jerritt Canyon Roaster 0.000106 5E-05 7.13E-05 Jerritt Canyon Ore Dryer 1.37E-06 1.09E-05 4.07E-06 Twin Creeks Autoclave 0.0004 0.0004 0.0004 Jerritt Canyon Roaster 2.1E-05 1.4E-05 1.51E-05 Jerritt Canyon Roaster 1.47E-05 1.63E-05 1.71E-05 Twin Creeks Autoclave 8.14E-05 8.04E-05 7.1E-05 
Facility Unit Type 

Hg Emission Rate .1 (lbs/hour) 

Hg Emission Rate .2 (lbs/hour) 

Hg Emission Rate .3 (lbs/hour) 

Average (lbs/hou

Goldstrike Roaster 0.022500001 0.0298 0.032000002 Goldstrike Pre-Heater 0.035999998 0.0077 0.0012 Goldstrike Pre-Heater 0.0013 0.0009 0.00078 Jerritt Canyon Roaster 0.454860985 0.03036 0.047251999 Jerritt Canyon Roaster 0.175477996 0.026062001 0.011576 Goldstrike Roaster 0.101000004 0.086599998 0.079800002 Goldstrike Pre-Heater 0.400000006 0.039999999 0.021 Goldstrike Pre-Heater 0.011 0.008 0.011 Gold Quarry 

Quench Circuit 0.005671 0.004008 0.005763 

Gold Quarry Pre-Heater 0.005324 0.002266 0.001898 Gold Quarry Roaster 0.000377 0.000292 0.00033 Gold Quarry 

Quench Circuit 0.007095 0.00575 0.004045 

Goldstrike Pre-Heater 0.0033 0.0017 0.0004 Goldstrike Pre-Heater 0.0027 0.0021 0.0004 Goldstrike Pre-Heater 0.0025 0.0013 0.0006 Goldstrike Roaster 0.018999999 0.018999999 0.026000001 Jerritt Canyon Roaster 0.042459 0.02809 0.014384 Jerritt Canyon Roaster 0.008556 0.008863 0.005323 Gold Quarry Pre-Heater 0.011018 0.010477 0.064511001 Gold Quarry Roaster 0.000533 0.000672 0.000259 Gold Quarry 

Quench Circuit 0.004413 0.005546 0.007055 

Twin Creeks Autoclave 0.045000002 0.089000002 0.119999997 Twin Creeks Autoclave 0.022 0.041000001 0.035999998 Goldstrike Pre-Heater 0.00043 0.00067 0.00048 Gold Quarry Roaster 0.000206 0.000115 0.000149 Gold Quarry Pre-Heater 0.003423 0.001457 0.001269 
Facility Unit Type 

Hg Emission Rate .1 (lbs/hour) 

Hg Emission Rate .2 (lbs/hour) 

Hg Emission Rate .3 (lbs/hour) 

Average (lbs/hou

Gold Quarry 

Quench Circuit 0.003574 0.004441 0.004088 

Gold Quarry 

Quench Circuit 0.004327 0.005494 0.005509 

Goldstrike 

Quench Circuit 0.00465 0.00493 0.00436 

Goldstrike 

Quench Circuit 0.00572 0.00389 0.00378 

Goldstrike Roaster 0.02564 0.02275 0.017270001 Goldstrike Pre-Heater 0.01141 0.00619 0.00225 Goldstrike Autoclave 0.00259 0.0003 0.00033 Goldstrike Autoclave 0.00184 0.00108 0.0006 Goldstrike Autoclave 0.00086 0.00101 0.00072 Goldstrike Autoclave 0.00049 0.00076 0.00089 Twin Creeks Autoclave 0.0458 0.029999999 0.026799999 Twin Creeks Autoclave 0.016799999 0.0119 0.0101 Jerritt Canyon Roaster 0.065200001 0.095700003 0.059500001 Jerritt Canyon Roaster 0.025 0.00963 0.00963 Jerritt Canyon Roaster 0.00762 0.00645 0.00391 Jerritt Canyon Roaster 0.00611 0.0062 0.00712 Jerritt Canyon Roaster 0.073299997 0.02 0.019400001 Jerritt Canyon Roaster 0.0062 0.00286 0.00413 Jerritt Canyon Ore Dryer 0.000594 0.00503 0.00177 Twin Creeks Autoclave 0.009722 0.009112 0.00933 Jerritt Canyon Roaster 0.000791 0.000586 0.000634 Jerritt Canyon Roaster 0.000956 0.00108 0.00114 Twin Creeks Autoclave 0.00373 0.00348 0.00329 
Facility Unit Type Notes 

Goldstrike Roaster Tests were based on 81.2% of permitted throughput; PPM value is based on a value of 18-22 Goldstrike Pre-Heater System # 16 A = Mill #2-South. *40 minute delay on Run 2. Goldstrike Pre-Heater System 15 A = Mill #1 - North Jerritt Canyon Roaster west roaster Jerritt Canyon Roaster east roaster Goldstrike Roaster Goldstrike Pre-Heater Goldstrike Pre-Heater Gold Quarry Quench Circuit north quench circuit, throughput is total for both the north and south quench circuits Gold Quarry Pre-Heater Gold Quarry Roaster Gold Quarry Quench Circuit south quench circuit, throughput is total for both the north and south quench circuit Goldstrike Pre-Heater Zulu test run data above. Alpha and Zulu test were concurrent runs. Goldstrike Pre-Heater 15 A - Alpha Test Data; Alpha and Zulu were two concurrent runs Goldstrike Pre-Heater Zulu test data above. Alpha and Zulu were concurrent runs. Goldstrike Roaster Jerritt Canyon Roaster east roaster, throughput rates are dated July 12, 2008 Jerritt Canyon Roaster west roaster, throughput rates are dated July 12, 2008 Gold Quarry Pre-Heater Gold Quarry Roaster Gold Quarry Quench Circuit north quench circuit, throughput is total for both the north and south quench circuits Twin Creeks Autoclave Autoclave #1 Twin Creeks Autoclave Autoclave #2 Goldstrike Pre-Heater mill #1, average throughput 313 tph Gold Quarry Roaster Gold Quarry Pre-Heater Gold Quarry Quench Circuit Gold Quarry Quench Circuit Goldstrike Quench Circuit roaster #2 quench, average throughput 342.9 Goldstrike Quench Circuit roaster #1 quench, average throughput 362.8 Goldstrike Roaster average throughput 676.1 Goldstrike Pre-Heater mill circuit #2, average throughput 312.6 
Facility Unit Type Notes 

Goldstrike Autoclave autoclave 4, average throughput 130.8 Goldstrike Autoclave autoclaves 5/6, average throughput is 129.3 Goldstrike Autoclave autoclaves 2/3, throughput is per autoclave, average throughput 124.15 Goldstrike Autoclave autoclave #1, average throughput 98.3 Twin Creeks Autoclave Autoclave #1 Twin Creeks Autoclave Autoclave #2 Jerritt Canyon Roaster east roaster Jerritt Canyon Roaster west roaster Jerritt Canyon Roaster east roaster Jerritt Canyon Roaster west roaster Jerritt Canyon Roaster east roaster Jerritt Canyon Roaster west roaster Jerritt Canyon Ore Dryer Twin Creeks Autoclave Autoclave #2 Jerritt Canyon Roaster EAST Roaster. Representative throughput at time of test was 70tph. Jerritt Canyon Roaster WEST Roaster. Representative throughput at time of test was 70tph. Twin Creeks Autoclave Autoclave #1