# 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 wit h the lbs/hr data for each r un (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 c aution regarding furnace and re tort batch/throughput data.

We are still finding companies that report bat ch processes as continuous processes

which gives incorrect values. For example folks that furnac e 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 oper ations. 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 throughput s, 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 summ ary 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.govFINFacilityCompanyUnit TypeDate .1System .Unit .MaterialConcentration(ppm)Throughput_TPHPermitted_TPHUnitsPercentPermittedA0005GoldstrikeBarrick GoldstrikeMines, Inc.Roaster5/31/200618S2.20920.5812.29998781000ton/hr81.22999573A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater3/12/200716AS2.20611.5342500ton/hr68.40000153A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater3/14/200715 AS2.20411.60000038409500ton/hr81.80000305A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster7/25/200740S2.036884.30000305125ton/hr67.44000244A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster7/26/200742S2.0411084.65000153125ton/hr67.72000122A0005GoldstrikeBarrick GoldstrikeMines, Inc.Roaster7/31/200718S2.20916.389999397741000ton/hr77.40000153A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater8/3/200715AS2.20420.45000076381.5500ton/hr76.30000305A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater8/4/200716AS2.20620.34000015379500ton/hr75.80000305A0002Gold QuarryNewmont MiningQuenchCircuit10/16/200747S2.158-S2.15915.5510.1000061560ton/hr91.0892868A0002Gold QuarryNewmont MiningPre-Heater10/16/200743S2.126 &S2.12915.5510.1000061560ton/hr91.0892868A0002Gold QuarryNewmont MiningRoaster10/16/200744S2.133 &S2.14515.5510.1000061560ton/hr91.0892868A0002Gold QuarryNewmont MiningQuenchCircuit10/16/200751S2.160-S2.16115.5510.1000061560ton/hr91.0892868A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater10/22/200715 AS2.20414.92000008341.7000122500ton/hr68.34000397A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater10/22/200715 AS2.20414.92000008341.7000122500ton/hr68.34000397A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater10/23/200716 AS2.2069.569999695336500ton/hr67.19999695A0005GoldstrikeBarrick GoldstrikeMines, Inc.Roaster10/25/200718S2.20997111000ton/hr71.1000061A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster6/12/200842S2.04113.4499998196125ton/hr76.80000305A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster6/13/200840S2.03614.9499998196125ton/hr76.80000305A0002Gold QuarryNewmont MiningPre-Heater6/27/200843S2.126 &S2.12915.60000038474.2999878560ton/hr84.69642639A0002Gold QuarryNewmont MiningRoaster6/27/200844S2.133 &S2.14513.89999962474.2999878560ton/hr84.69642639A0002Gold QuarryNewmont MiningQuenchCircuit7/8/200847S2.158-S2.1590.349999994501.1000061560ton/hr89.48214722FIN FacilityCompany Unit Type Date .1 System . Unit .MaterialConcentration(ppm)Throughput_TPHPermitted_TPH UnitsPercentPermittedA0003Twin CreeksNewmont MiningAutoclave8/18/200814S2.02329.70000076242255ton/hr94.90196228A0003Twin CreeksNewmont MiningAutoclave8/21/200814S2.02444.33000183239.3000031255ton/hr93.84313965A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater7/9/200915S2.20418.29999924353.8999939500ton/hr70.77999878A0002Gold QuarryNewmont MiningRoaster7/10/200943S2.133 &S2.14512.89999962463560ton/hr82.67857361A0002Gold QuarryNewmont MiningPre-Heater7/10/200943S2.126 &S2.12912.89999962463560ton/hr82.67857361A0002Gold QuarryNewmont MiningQuenchCircuit7/10/200947S2.158 &S2.1590.501999974463560ton/hr82.67857361A0002Gold QuarryNewmont MiningQuenchCircuit7/10/200951S2.160 &S2.1610.467999995463560ton/hr82.67857361A0005GoldstrikeBarrick GoldstrikeMines, Inc.QuenchCircuit7/13/200919S2.21123365500ton/hr73A0005GoldstrikeBarrick GoldstrikeMines, Inc.QuenchCircuit7/13/200919S2.21023365500ton/hr73A0005GoldstrikeBarrick GoldstrikeMines, Inc.Roaster7/14/200918S2.209.1andS2.209.222.700000767681000ton/hr76.80000305A0005GoldstrikeBarrick GoldstrikeMines, Inc.Pre-Heater7/14/200916S2.20622.29999924345.3999939500ton/hr69.08000183A0005GoldstrikeBarrick GoldstrikeMines, Inc.Autoclave7/23/200966S2.0184119200ton/hr59.50000381A0005GoldstrikeBarrick GoldstrikeMines, Inc.Autoclave7/24/200966S2.019 andS2.0204.5135200ton/hr67.5A0005GoldstrikeBarrick GoldstrikeMines, Inc.Autoclave7/28/200966S2.016 andS2.0177.150000095131200ton/hr65.5A0005GoldstrikeBarrick GoldstrikeMines, Inc.Autoclave7/29/200966S2.0158112130ton/hr86.15384674A0003Twin CreeksNewmont MiningAutoclave11/3/200934.70000076247.8999939255ton/hr97.21568298A0003Twin CreeksNewmont MiningAutoclave11/5/200940.40000153236.5255ton/hr92.7450943A0004Jerritt CanyonYukon NevadaGoldRoaster12/3/200942S2.041116890ton/hr75.55555725A0004Jerritt CanyonYukon NevadaGoldRoaster12/5/200940S2.0371370.4000015390ton/hr78.22222137A0004Jerritt CanyonYukon NevadaGoldRoaster1/20/201042S2.0411170.3000030590ton/hr78.1111145A0004Jerritt CanyonYukon NevadaGoldRoaster1/22/201040S2.037968.3000030590ton/hr0A0004Jerritt CanyonYukon NevadaGoldRoaster2/22/201042S2.0411169.4000015390ton/hr77.1111145A0004Jerritt CanyonYukon NevadaGoldRoaster2/24/201040S2.03711.3000001968.9000015390ton/hr76.55555725FIN FacilityCompany Unit Type Date .1 System . Unit .MaterialConcentration(ppm)Throughput_TPHPermitted_TPH UnitsPercentPermittedA0004Jerritt CanyonYukon- NevadaGoldOre Dryer2/26/201035S2.026.16.300000191155.3300018300ton/hr51.77666473A0003Twin CreeksNewmont MiningAutoclave3/9/201020.46999931245255ton/hr96.07843018A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster4/27/201042S2.04110.6999998167.40000153120ton/hr56.16666794A0004Jerritt CanyonQueenstakeResources U.S.A.,Inc.Roaster4/29/201040S2.0361068.93000031120ton/hr57.44166946A0003Twin CreeksNewmont MiningAutoclave5/3/2010S2.023A28.5234255ton/hr91.76470947FacilityUnit TypeHg Concentration .1(g/dscf)Hg Concentration .2(g/dscf)Hg Concentration .3(g/dscf)Average Hg Concentration(g/dscf)GoldstrikeRoaster0.000126840.000165080.000182210.000158043GoldstrikePre-Heater3.596E-057.72E-061.17E-061.495E-05GoldstrikePre-Heater1.06E-067.6E-076.6E-078.26667E-07JerrittCanyonRoaster0.0127930.0008080.0011950.004932JerrittCanyonRoaster0.0038390.0006270.0002680.001578GoldstrikeRoaster0.00062070.00047960.00044920.0005165GoldstrikePre-Heater0.000388433.843E-052.037E-050.000149077GoldstrikePre-Heater1.204E-058.64E-061.235E-051.101E-05Gold QuarryQuenchCircuit0.0001138.1E-051E-049.8E-05Gold QuarryPre-Heater9E-064E-063E-065.33333E-06Gold QuarryRoaster3E-062E-062E-062.33333E-06Gold QuarryQuenchCircuit0.0001470.0001168.4E-050.000115667GoldstrikePre-Heater3.09E-061.7E-064.6E-071.75E-06GoldstrikePre-Heater2.31E-062.01E-053.1E-077.57333E-06GoldstrikePre-Heater2.78E-061.39E-066.2E-071.59667E-06GoldstrikeRoaster9.923E-059.46E-050.00013150.000108443JerrittCanyonRoaster0.0009940.0006430.0003270.000655JerrittCanyonRoaster0.0002730.0002510.0001590.000227Gold QuarryPre-Heater2E-051.9E-050.0001064.83333E-05Gold QuarryRoaster4E-065E-062E-063.66667E-06Gold QuarryQuenchCircuit7.5E-058.7E-050.0001219.43333E-05Twin CreeksAutoclave0.000960.00190.00230.00172Twin CreeksAutoclave0.000460.00090.000660.000673333GoldstrikePre-Heater4.98E-077.63E-075.39E-076E-07Gold QuarryRoaster1.34E-067.58E-079.69E-071.02233E-06Gold QuarryPre-Heater5.69E-062.62E-062.14E-063.48333E-06Facility Unit TypeHg Concentration .1(g/dscf)Hg Concentration .2(g/dscf)Hg Concentration .3(g/dscf)Average Hg Concentration(g/dscf)Gold QuarryQuenchCircuit6.63E-058.27E-057.79E-057.56333E-05Gold QuarryQuenchCircuit6.19E-058.02E-057.72E-057.31E-05GoldstrikeQuenchCircuit5.48E-055.79E-055.02E-055.43E-05GoldstrikeQuenchCircuit6.71E-054.55E-054.38E-055.21333E-05GoldstrikeRoaster0.0001390.0001249.34E-050.0001188GoldstrikePre-Heater1.34E-057.16E-062.64E-067.73333E-06GoldstrikeAutoclave0.0001431.92E-052.39E-056.20333E-05GoldstrikeAutoclave5.7E-053.44E-051.82E-053.65333E-05GoldstrikeAutoclave2.71E-052.65E-052.29E-052.55E-05GoldstrikeAutoclave4.4E-056.25E-057.12E-055.92333E-05Twin CreeksAutoclave0.000770.0004910.0004580.000573Twin CreeksAutoclave0.0003270.0002130.0001910.000243667JerrittCanyonRoaster0.001580.002120.001390.001696667JerrittCanyonRoaster0.0005550.0002130.0002080.000325333JerrittCanyonRoaster0.0002290.0002010.0001080.000179333JerrittCanyonRoaster0.0001330.0001310.0001520.000138667JerrittCanyonRoaster0.00190.0004790.0004570.000945333JerrittCanyonRoaster0.0001065E-057.13E-057.57667E-05JerrittCanyonOre Dryer1.37E-061.09E-054.07E-065.44667E-06Twin CreeksAutoclave0.00040.00040.00040.0004JerrittCanyonRoaster2.1E-051.4E-051.51E-051.67E-05JerrittCanyonRoaster1.47E-051.63E-051.71E-051.60333E-05Twin CreeksAutoclave8.14E-058.04E-057.1E-057.76E-05FacilityUnit TypeHg Emission Rate .1(lbs/hour)Hg Emission Rate .2(lbs/hour)Hg Emission Rate .3(lbs/hour)Average Hg Emission Rate(lbs/hour)GoldstrikeRoaster0.0225000010.02980.0320000020.028100001GoldstrikePre-Heater0.0359999980.00770.00120.014966666GoldstrikePre-Heater0.00130.00090.000780.000993333JerrittCanyonRoaster0.4548609850.030360.0472519990.177490994JerrittCanyonRoaster0.1754779960.0260620010.0115760.071038999GoldstrikeRoaster0.1010000040.0865999980.0798000020.089133337GoldstrikePre-Heater0.4000000060.0399999990.0210.153666675GoldstrikePre-Heater0.0110.0080.0110.01Gold QuarryQuenchCircuit0.0056710.0040080.0057630.005147333GoldQuarryPre-Heater0.0053240.0022660.0018980.003162667Gold QuarryRoaster0.0003770.0002920.000330.000333Gold QuarryQuenchCircuit0.0070950.005750.0040450.00563GoldstrikePre-Heater0.00330.00170.00040.0018GoldstrikePre-Heater0.00270.00210.00040.001733333GoldstrikePre-Heater0.00250.00130.00060.001466667GoldstrikeRoaster0.0189999990.0189999990.0260000010.021333333JerrittCanyonRoaster0.0424590.028090.0143840.028310999JerrittCanyonRoaster0.0085560.0088630.0053230.007581Gold QuarryPre-Heater0.0110180.0104770.0645110010.028668666GoldQuarryRoaster0.0005330.0006720.0002590.000488Gold QuarryQuenchCircuit0.0044130.0055460.0070550.005671333Twin CreeksAutoclave0.0450000020.0890000020.1199999970.084666669Twin CreeksAutoclave0.0220.0410000010.0359999980.033GoldstrikePre-Heater0.000430.000670.000480.000526667GoldQuarryRoaster0.0002060.0001150.0001490.000156667GoldQuarryPre-Heater0.0034230.0014570.0012690.002049667Facility Unit TypeHg Emission Rate .1(lbs/hour)Hg Emission Rate .2(lbs/hour)Hg Emission Rate .3(lbs/hour)Average Hg Emission Rate(lbs/hour)Gold QuarryQuenchCircuit0.0035740.0044410.0040880.004034333Gold QuarryQuenchCircuit0.0043270.0054940.0055090.00511GoldstrikeQuenchCircuit0.004650.004930.004360.004646667GoldstrikeQuenchCircuit0.005720.003890.003780.004463333GoldstrikeRoaster0.025640.022750.0172700010.021886667GoldstrikePre-Heater0.011410.006190.002250.006616666GoldstrikeAutoclave0.002590.00030.000330.001073333GoldstrikeAutoclave0.001840.001080.00060.001173333GoldstrikeAutoclave0.000860.001010.000720.000863333GoldstrikeAutoclave0.000490.000760.000890.000713333Twin CreeksAutoclave0.04580.0299999990.0267999990.034199998TwinCreeksAutoclave0.0167999990.01190.01010.012933333JerrittCanyonRoaster0.0652000010.0957000030.0595000010.073466666JerrittCanyonRoaster0.0250.009630.009630.014753333JerrittCanyonRoaster0.007620.006450.003910.005993333JerrittCanyonRoaster0.006110.00620.007120.006476667JerrittCanyonRoaster0.0732999970.020.0194000010.037566666JerrittCanyonRoaster0.00620.002860.004130.004396667JerrittCanyonOreDryer0.0005940.005030.001770.002464667Twin CreeksAutoclave0.0097220.0091120.009330.009388JerrittCanyonRoaster0.0007910.0005860.0006340.000670333JerrittCanyonRoaster0.0009560.001080.001140.001058667TwinCreeksAutoclave0.003730.003480.003290.002456FacilityUnit TypeNotesGoldstrikeRoasterTests were based on 81.2% of permitted throughput; PPM value is based on a value of 18-22GoldstrikePre-HeaterSystem # 16 A = Mill #2-South. *40 minute delay on Run 2.GoldstrikePre-HeaterSystem 15 A = Mill #1 - NorthJerritt CanyonRoasterwest roasterJerritt CanyonRoastereast roasterGoldstrikeRoasterGoldstrikePre-HeaterGoldstrikePre-HeaterGold QuarryQuench Circuitnorth quench circuit, throughput is total for both the north and south quench circuitsGold QuarryPre-HeaterGold QuarryRoasterGold QuarryQuench Circuitsouth quench circuit, throughput is total for both the north and south quench circuitGoldstrikePre-HeaterZulu testrun data above. Alpha and Zulu test were concurrent runs.GoldstrikePre-Heater15 A - Alpha Test Data; Alpha and Zulu were two concurrent runsGoldstrikePre-HeaterZulu test data above. Alpha and Zulu were concurrent runs.GoldstrikeRoasterJerritt CanyonRoastereast roaster, throughput rates are dated July 12, 2008Jerritt CanyonRoasterwest roaster, throughput rates are dated July 12, 2008Gold QuarryPre-HeaterGold QuarryRoasterGold QuarryQuench Circuitnorth quench circuit, throughput is total for both the north and south quench circuitsTwin CreeksAutoclaveAutoclave #1Twin CreeksAutoclaveAutoclave #2GoldstrikePre-Heatermill #1, average throughput 313 tphGold QuarryRoasterGold QuarryPre-HeaterGold QuarryQuench CircuitGold QuarryQuench CircuitGoldstrikeQuench Circuitroaster #2 quench, average throughput 342.9GoldstrikeQuench Circuitroaster #1 quench, average throughput 362.8GoldstrikeRoasteraverage throughput 676.1GoldstrikePre-Heatermill circuit #2, average throughput 312.6Facility Unit Type NotesGoldstrikeAutoclaveautoclave 4, average throughput 130.8GoldstrikeAutoclaveautoclaves5/6, average throughput is 129.3GoldstrikeAutoclaveautoclaves2/3, throughput is per autoclave, averagethroughput 124.15GoldstrikeAutoclaveautoclave #1, average throughput 98.3Twin CreeksAutoclaveAutoclave #1Twin CreeksAutoclaveAutoclave #2Jerritt CanyonRoastereast roasterJerritt CanyonRoasterwest roasterJerritt CanyonRoastereast roasterJerritt CanyonRoasterwest roasterJerritt CanyonRoastereast roasterJerritt CanyonRoasterwest roasterJerritt CanyonOre DryerTwin CreeksAutoclaveAutoclave #2Jerritt CanyonRoasterEAST Roaster. Representative throughput at time of test was 70tph.Jerritt CanyonRoasterWEST Roaster. Representative throughput at time of test was 70tph.Twin CreeksAutoclaveAutoclave #1