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

Sent: Friday, July 23, 2010 2:13 PM

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

Cc: Mike Elges

Subject: Nevada 2009 Draft Annual Hg Emissions Reporting

Hello gents,

Attached is the 2009 Annual Emissions Reporting for the Mercury Program. It is near 

final. The last step to finalization is to give industry a chance to review it for 

typographical errors. We usually give them a week or so for review. We'll let you know 

if anything changes.

We are targeting Monday to get you guys the data dump for pre-treat units and the test 

PDFs shortly thereafter. I have a few folks out of the office that have some data to enter 

1st thing on Monday morning so that we can get you all available data.

Have a great weekend.

-Rob

See attached document: CY2009 Cumulative draft.xls

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
Nevada Division of Environmental Protection

Bureau of Air Pollution Control

Calendar Year 2009 Actual Production/Emission Reporting Form Addendum for Mercury Emissions

Cumulative NMCP Mercury Addendum Data Submittals 

Pollutant ID

Produc

tion/He

at

Produc

tion 

Units

Emis

sions

Emis

sions

HG 

Annual

Hou

rs

HG 

CoProdu

ct Notes

Rate

(eg. 

tons/yr)

Fact

or

Facto

r 

Units

Emission

s (lbs/yr)

Ope

rate

d

(tons/y

r)

Source: Newmont Mining Corporation - Twin Creeks 

Mine: AQOP AP1041-0723.01; NMCP AP1041-2218 

System Description: Juniper Mill Electric Induction Furnace (S2.001/TU4.001 - 1 of 2, only one operates at a 

time)

Hg 34.00 tpy

0.00

0122 lbs/hr 0.0510 418 0.0000

Induction Furnace emissions 

factor derived from 2009 M29 

stack test.

System Description: Juniper Mill Electric Induction Furnace (S2.001.1/TU4.002 - 1 of 2, only one operates at 

a time)

Hg 28.70 tpy

0.00

0119 lbs/hr 0.0387 325 0.0000

Induction Furnace emissions 

factor derived from 2009 M29 

stack test.

System Description: Juniper Mill Carbon Kiln (S2.002/TU4.003)

Hg

5,667.

00 tpy

0.00

0632 lbs/hr 4.8373

7,6

54 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: New Mercury Retort Circuit A (S2.004/TU4.004)

Hg 21.00 tpy

0.00

0001

45 lbs/hr 0.0008 558 0.0000

Retort A emissions factor derived 

from 2009 M29 stack test.

System Description: New Mercury Retort Circuit B (S2.005/TU4.005)

Hg 14.00 tpy

0.00

0002

02 lbs/hr 0.0010 499 0.0000

Retort B emissions factor derived 

from 2009 M29 stack test.

System Description: Old Mercury Retort Circuit A (S2.004)

Hg 25.85 tpy

0.00

0028 lbs/hr 0.0739

2,6

39 2.2800

Retort A emissions factor derived 

from 2008 M29 stack test.

Unit was not tested in 2009, 
removed and replaced in October, 

2009.

System Description: Old Mercury Retort Circuit B (S2.005)

Hg 14.44 tpy

0.00

0028 lbs/hr 0.0420

1,5

00 1.3700

Retort B emissions factor derived 

from 2008 M29 stack test.

Unit was not tested in 2009, 

removed and replaced in October, 

2009.

System Description: Old Mercury Retort Circuit C (S2.005.1)

Hg 12.83 tpy

0.00

0073 lbs/hr 0.1303

1,7

85 0.9000

Retort C emissions factor derived 

from 2008 M29 stack test.

Unit was not tested in 2009, 

removed in October, 2009.

System Description: Old Mercury Retort Circuit D (S2.005.2)

Hg 16.45 tpy

0.00

0006

6 lbs/hr 0.0126

1,9

04 0.7900

Retort D emissions factor derived 

from 2008 M29 stack test.

Unit was not tested in 2009, 

removed in October, 2009.

System Description: Sage Mill Autoclave (S2.023/TU4.014)

Hg

1,849,

150.00 tpy

0.03

42 lbs/hr 283.2444

8,2

82 0.0000

Autoclave #1 emissions factor 

derived from 2009 M29 stack test.

System Description: Sage Mill Autoclave (S2.024/TU4.015)

Hg

1,723,

790.00 tpy

0.01

29 lbs/hr 96.7758

7,5

02 0.0000

Autoclave #2 emissions factor 

derived from 2009 M29 stack test.

System Description: Electro-winning Cells (TU4.011 - six cells ducted to common stack)

Hg

Not 

Report

ed gals/yr

0.00

0577 lbs/hr 5.0545

8,7

60 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Juniper Mill Pregnant & Barren Strip Solution Tanks (TU4.008 - TU4.010)

Hg

Not 

Report

ed gals/yr

0.00

333 lbs/hr 29.1708

8,7

60 0.0000

Preg./Barren Tanks emissions 

factor derived from 2009 M29 

stack test.

System Description: Pinon Mill Pregnant Strip Solution Tank (TU4.012)

Hg

Not 

Report

ed gals/yr

0.00

0135

6 lbs/hr 1.1879

8,7

60 0.0000

Emissions estimate - refer to 

attached calculation.

System Description: Pinon Mill Barren Strip Solution Tank (TU4.013)

Hg Not gals/yr 0.00 lbs/hr 1.1879 8,7 0.0000 Emissions estimate - refer to 
Report

ed

0135

6

60 attached calculation.

System Description: Laboratory Sample Prep. Room, Fire Assay Room, Wet Lab Room, Slurry Prep. Room, LECO Room, Instrumentation Room, 

Met Lab Room & Autoclave Room

Hg 3.9471 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 434.3715 8.9100

CY 2006 Co-product: 17,820.00 

lbs/yr

CY 2007 

Facility Total: 990.1148

13.216

0

CY 2007 Co-product: 26,432.00 

lbs/yr.

CY 2008 

Facility Total:

1,679.18

64 8.8000

CY 2008 Co-product: 17,600.00 

lbs/yr.

CY 2009 

Facility Total: 425.7559 5.3400 CY 2008 Co-product: 0.00 lbs/yr.

Source: Queenstake Resources USA, Inc. - Jerritt Canyon Mine: AQOP AP1041-0778; NMCP AP1041-2217 

System Description: West Roaster Process (S2.036 & PF1.213)

Hg

91,014

.00 tpy

0.01

48 lbs/hr 24.8936

1,6

82 0.4000

Roaster emissions factor derived 

from December 2009 M29 stack 

test.

System Description: West Roaster Quench Stack

Hg tpy lbs/hr

1,6

82 0.0000 Not testable

System Description: East Roaster Process (S2.041 & PF1.214)

Hg

77,941

.00 tpy

0.07

35 lbs/hr 111.9405

1,5

23 1.7000

Roaster emissions factor derived 

from December 2009 M29 stack 

test.

System Description: East Roaster Quench Stack

Hg tpy lbs/hr

1,5

23 0.0000 Not testable

System Description: Carbon Bed Venturi Scrubber (Retort - S2.051)

Hg

Not 

Report

ed tpy NA lbs/hr NA

2,9

30 0.0000

No M29 testing completed in 

2009.

System Description: Ore Dryer (S2.026)

Hg

192,82

4.00 tpy NA lbs/hr NA

1,2

38 0.0000 No valid M29 test for Dec 2009.

System Description: Refining Process Induction Furnace (S2.050)
Hg 5.00 tpy NA lbs/hr NA 831 0.0000

No M29 testing completed in 

2009.

System Description: Laboratory Units Including Large Ore Drying Ovens (5 Units) and Electro-winning Cells

Hg 2.1363 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 293.9245 2.9600

CY 2006 Co-product: 5,920.00 

lbs/yr.

CY 2007 

Facility Total:

1,966.39

34 1.0200

CY 2007 Co-product: 2,040.00 

lbs/yr.

CY 2008 

Facility Total: 219.9723 0.7100

CY 2008 Co-product: 1,420.00 

lbs/yr.

CY 2009 

Facility Total: 138.9704 2.1000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Newmont Mining Corporation - Gold Quarry: AQOP AP1041-0793; NMCP AP1041-2219 

System Description: Mill 6 Static Separator (Double Rotator Air Pre-Heater: S2.120/TU4.001)

Hg

3,146,

023.00 tpy

0.00

0671 lbs/hr 5.1231

7,6

35 0.0000

Static Seperator emissions factor 

derived from 2009 M29 stack test.

System Description: CFB North and South Ore Preheaters (S2.126 & S2.129/ TU4.002 & TU4.003)

Hg

3,220,

396.00 tpy

0.00

205 lbs/hr 15.7686

7,6

92 0.0000

Ore Preheater's emissions factor 

derived from 2009 M29 stack test.

System Description: CFB North and South Ore Roasters (S2.133 & S2.145/TU4.004 & TU4.005)

Hg

3,220,

396.00 tpy

0.00

0157 lbs/hr 1.2076

7,6

92 4.1300

Ore Roaster's factor derived from 

2009 M29 stack test.

System Description: ROTP North Calcine 

Quench Circuit (S2.158 & S2.159/TU4.006 -

TU4.009)

Hg

1,377,

793.00 tpy

0.00

4034 lbs/hr 30.7028

7,6

11 0.0000

North Quench Circuit emissions 

factor derived from 2009 M29 

stack test.

System Description: ROTP South Calcine Quench Circuit (S2.160 & S2.161/TU4.010 - TU4.013)

Hg

1,842,

603.00 tpy

0.00

511 lbs/hr 39.3061

7,6

92 0.0000

South Quench Circuit emissions 

factor derived from 2009 M29 

stack test.

System Description: AARL Carbon Stripping Circuit (Pregnant Tanks: TU4.014 & TU4.015)

Hg

14,313

.60 tpy

0.00

907 lbs/hr 75.1903

8,2

90 0.0000

Pergnant Strip Tanks emissions 

factor derived from 2009 M29 

stack test.
System Description: Refinery Barren Tank & Electro-winning Cells (TU4.016 & TU4.017)

Hg

42,021

,030.0

0 gals/yr

0.00

2223 lbs/hr 16.3524

7,3

56 0.0000

Barren Tank/EW Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Refinery Mercury Retort Circuit (S2.041 - S2.046/TU4.018 - TU4.023)

Hg 51.20 tpy

0.00

2565 lbs/hr 7.3872

2,8

80 1.2200

Retort Circuit emissions factor 

derived from 2009 M29 stack test.

System Description: Electric Refinery Induction Furnaces (S2.047 - S2.049/TU4.024 - TU4.026)

Hg 76.00 tpy

0.13

3972 lbs/hr 75.5736 564 0.0000

Induction Furnace emissions 

factor derived from 2009 M29 

stack test.

System Description: Carbon Kiln #1 (Zadra Process) Scrubber Stack (S2.056/TU4.027)

Hg

6,670.

00 tpy

0.00

1756 lbs/hr 13.2209

7,5

29 0.0200

Kiln Scrubber Stack emissions 

factor derived from 2009 M29 

stack test.

System Description: Carbon Kiln #2 (AARL Process) Scrubber Stack (S2.058?TU4.028)

Hg

6,635.

00 tpy

0.01

0214 lbs/hr 66.6259

6,5

23 0.0200

Kiln Scrubber Stack emissions 

factor derived from 2009 M29 

stack test.

System Description: Assay Laboratory, Met Laboratory & Integrated Laboratory

Hg 1.8984 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 310.6937 2.7200

CY 2006 Co-product: 5,440.00 

lbs/yr.

CY 2007 

Facility Total: 504.4204 6.1600

CY 2007 Co-product: 12,320.00 

lbs/yr.

CY 2008 

Facility Total: 422.4137 6.7700

CY 2008 Co-product: 13,540.00 

lbs/yr.

CY 2009 

Facility Total: 348.3570 5.3900 CY 2009 Co-product: 0.00 lbs/yr.

Source: Newmont Mining Corporation - Midas Operations: AQOP AP1041-0766.01; NMCP AP1041-2253 

System Description: Refinery Furnace #1 (S2.035/TU4.001)

Hg 78.00 tpy

0.00

252 lbs/hr 2.5049 994 0.0000

Furnace #1 emissions factor 

derived from 2009 M29 stack test.

System Description: Refinery Furnace #2 (S2.036/TU4.002)

Hg 120.00 tpy

0.00

316 lbs/hr 1.8423 583 0.0000

Furnace #2 emissions factor 

derived from 2009 M29 stack test.
System Description: Retort A (S2.037/TU4.003)

Hg 134.00 tpy

0.00

0002

37 lbs/hr 0.0083

3,5

18 0.0000

Retort A emissions factor derived 

from 2009 M29 stack test.

System Description: Retort B (S2.038/TU4.004)

Hg 94.00 tpy

0.00

0083

5 lbs/hr 0.2601

3,1

15 0.0000

Retort B emissions factor derived 

from 2009 M29 stack test.

System Description: Assay Laboratory

Hg lbs/hr 1.8239 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 17.1801 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 4.2457 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 41.3420 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 6.4395 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Barrick, Bald Mountain Mine - Huntington Valley: AQOP AP1041-1362; NMCP AP1041-

2246 

System Description: Propane Fired Carbon Regeneration Kiln (S2.001/TU4.001)

Hg 96.99 tpy

0.00

0067 lbs/hr 0.0726

1,0

84 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Propane Fired Mercury Retort (S2.002/TU4.002)

Hg 3.76 tpy

0.00

0005

38 lbs/hr 0.0034 625 1.5600

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Propane Fired Bullion Furnace (S2.003/TU4.003)

4.00 tpy

0.00

131 lbs/hr 0.1939 148 0.0000

Bullion Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Electro-winning Circuit (IA1.024/TU4.004)

Hg

47,320

.50 tpy

0.00

0501 lbs/hr 2.5050

5,0

00 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Barren Strip Solution Tank (TU4.005)

Barren Strip Solution Tank vented 

to a common stack with Electro-
winning

Hg

47,320

.50 tpy lbs/hr 0.0000 0.0000

Cells, therefore, emissions factor 

is for both units.

System Description: Assay Laboratory

Hg 3.1246 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 204.3025 2.9400

CY 2006 Co-product: 5,880.00 

lbs/yr.

CY 2007 

Facility Total: 57.4138 2.2750

CY 2007 Co-product: 4,550.00 

lbs/yr.

CY 2008 

Facility Total: 278.3220 2.6000

CY 2008 Co-product: 5,200.00 

lbs/yr.

CY 2009 

Facility Total: 5.8995 1.5600

CY 2009 Co-product: 0,000.00 

lbs/yr.

Source: Kennecott Rawhide Mining Company - Denton-Rawhide Mine: AQOP AP1041-1116.02; NMCP 

AP1041-2245

System Description: Carbon Regeneration Kiln (S2.001/TU4.001)

Hg 270.00 tpy

0.00

0222 lbs/hr 1.4390

6,4

82 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Electro-winning Circuit (IA3.007/TU4.002)

Hg

Not 

Report

ed gals/yr

0.00

0083

8 lbs/hr 0.5541

6,6

12 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Refinery Induction Furnace (S2.004/TU4.003)

Hg 8.25 tpy

0.09

57 lbs/hr 9.4934 99 0.0000

Refinery Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: System 1 - Mercury Retort (System 2 - S2.002)

Hg 8.25 tpy

0.00

0285 lbs/hr 0.5022

1,7

62 0.0258

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Fire Assay Laboratory

Hg 0.0142 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 351.5928 0.0621

CY 2006 Co-product: 124.20 

lbs/yr.

CY 2007 

Facility Total: 39.5645 0.0276

CY 2007 Co-product: 55.20 

lbs/yr.
CY 2008 

Facility Total: 13.0908 0.0262

CY 2008 Co-product: 52.40 

lbs/yr.

CY 2009 

Facility Total: 12.0029 0.0258 CY 2009 Co-product: 0.00 lbs/yr.

Source: Hycroft Resources & Development, Inc. - Crofoot/Lewis Project: AQOP AP1041-0334.02; NMCP 

AP1041-2255

System Description: Mercury Retort (TU4.001)

Hg

Not 

Report

ed tpy

0.00

0040

8 lbs/hr 0.0764

1,8

72 0.8000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Smelting Furnace (TU4.002)

Hg

Not 

Report

ed tpy

0.00

0016 lbs/hr 0.0188

1,1

72 0.0000

Refinery Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Assay Laboratory

Hg 4.4348 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 0.0000 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 0.0000 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 0.0000 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 4.5299 0.8000

CY 2009 Co-product: 1,600.00 

lbs/yr.

Source: Antler Peak Gold, Inc. (formerly Metallic Ventures, Inc).: AQOP AP1041-1202; NMCP AP1041-

2248

System Description: Dore Furnace, Carbon Reactivation Kiln

Hg 0.2838 0.0000

Facility did not operate in 2009.

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 0.0000 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 0.0000 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 0.2838 0.0000 CY 2008 Co-product: 0.00 lbs/yr.
Facility Total:

CY 2009 

Facility Total: 0.2838 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Coeur D'Alene Mining Corporation - Coeur Rochester Mine: AQOP AP1044-0063.02; NMCP 

AP1041-2242

System Description: Refinery Furnace (TU4.001)

Hg 80.40 tpy

0.00

899 lbs/hr 2.5194 280 0.0000

Refinery Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Mercury Retorts (TU4.002/TU4.003)

Hg 114.48 tpy

0.00

0004

05 lbs/hr 0.0097

2,4

00

10.700

0

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Assay Laboratory

Hg 1.8805 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 2.8872

16.100

0

CY 2006 Co-product: 32,200.00 

lbs/yr.

CY 2007 

Facility Total: 137.0958

15.400

0

CY 2007 Co-product: 30,800.00 

lbs/yr.

CY 2008 

Facility Total: 1.8805

15.600

0

CY 2008 Co-product: 31,200.00 

lbs/yr.

CY 2009 

Facility Total: 4.4097

10.700

0

CY 2009 Co-product: 21,400.00 

lbs/yr.

Source: Newmont Mining Corporation - Lone Tree Mine: AQOP 

AP1041-0059; NMCP AP1041-2251

System Description: Electro-winning Cells (East Stack)

Hg

3,985,

248.00 gals/yr

0.00

013 lbs/hr 0.1747

1,3

44 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test.

System Description: Electro-winning Cells (West Stack)

Hg

3,985,

248.00 gals/yr

0.00

0554 lbs/hr 0.7446

1,3

44 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test.

System Description: Electro-winning Cells (Scavenger Stack)

Hg

3,985,

248.00 gals/yr

0.00

0138 lbs/hr 0.1855

1,3

44 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test.

System Description: Pregnant and Barren Solution Tanks

Hg 351.00

tpy -

carbon

0.00

375 lbs/hr 4.2300

1,1

28 0.0000

Preg./Barren Tanks emissions 

factor derived from 2009 M29 
stack tests.

System Description: Sample Room, Fire Assay Room, Wet Laboratory, LECO Laboratory, Met Laboratory

Hg 1.8788 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 622.1013 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 148.0964 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 67.1251 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 7.2136 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Barrick Cortez, Inc. - Cortez Hills and Pipeline Projects: AQOP AP1041-2141; NMCP AP1041-2220

System Description: Refinery Induction Furnace #1 (S2.002/TU4.003)

Hg 20.70 tpy

0.00

0106 lbs/hr 0.0409 385 0.0000

Refinery Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Refinery Induction Furnace #2 (S2.003/TU4.004)

Hg 0.80 tpy

0.00

0131 lbs/hr 0.0032 25 0.0000

Refinery Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Electric Carbon Reactivation Kiln #1 (S2.007/TU4.005)

Hg 86.60 tpy

0.00

0049

7 lbs/hr 0.0081 163 0.0000

Carbon Kiln #1 emissions factor 

derived from 2010 M29 stack test.

Major component failure forced 

repairs delaying testing until 

01/28/10.

System Description: Electric Carbon Reactivation Kiln #2 (S2.008/TU4.006)

Hg

1,398.

50 tpy

0.00

0016

8 lbs/hr 0.0393

2,3

41 0.0170

Carbon Kiln #2 emissions factor 

derived from 2009 M29 stack test.

System Description: East Electro-winning Cells (IA1.096/TU4.001)

Hg

Not 

Report

ed

gals/mi

n

0.00

0026

8 lbs/hr 0.1891

7,0

55 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test.

System Description: West Electro-winning Cells (IA1.097/TU4.002)

Hg

Not 

Report

ed

gals/mi

n

0.00

0012

5 lbs/hr 0.0955

7,6

41 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test.
System Description: Fire Assay Fusion Furnaces (S2.018a-f/TU4.007a-f)

Hg 15.21 tpy

0.00

0029

9 lbs/hr 0.1527

5,1

07 0.0000

Furnace emissions factor derived 

from 2009 M29 stack test.

System Description: Pregnant and Barren Strip Solution Tanks (TU4.008 & TU4.009)

Hg

Not 

Report

ed gals/yr

0.00

0008

03 lbs/hr 0.0588

7,3

17 0.0000

Preg./Barren Tanks emissions 

factor derived from 2009 M29 

stack test.

System Description: Assay Laboratory (Analytical Lab Building), Met Laboratory, Strip Circuit Area (Mill Building), Refinery Gold Sludge Drying 

Oven

Hg 0.8029 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 166.7059 0.1200

CY 2006 Co-product: 240.00 

lbs/yr.

CY 2007 

Facility Total: 208.0466 0.3200

CY 2007 Co-product: 640.00 

lbs/yr.

CY 2008 

Facility Total: 75.8638 0.0000 CY 2008 Co-product: lbs/yr.

CY 2009 

Facility Total: 1.3905 0.0170 CY 2009 Co-product: lbs/yr.

Source: Florida Canyon Mining, Inc. - Florida Canyon Mine: AQOP AP1041-0106.02; NMCP AP1041-2256

System Description: Mercurt Retort (System 6 - S2.003/TU4.004)

Hg 1.09 tpy

0.00

0002

6 lbs/hr 0.0002 79 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Mercurt Retort (System 6 - S2.004/TU4.005)

Hg 10.26 tpy

0.00

0000

55 lbs/hr 0.0005 928 0.8120

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Summit Valley Electro-winning Cell A (TU4.002)

Hg 60.00

gals/mi

n

0.00

083 lbs/hr 7.2708

8,7

60 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Summit Valley Electro-winning Cell B (TU4.003)

Hg 60.00

gals/mi

n

0.00

071 lbs/hr 6.2196

8,7

60 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.
System Description: Combustion Air International Carbon Regeneration Kiln (System 9 - S2.007/TU4.008)

Hg

1,659.

73 tpy

0.00

515 lbs/hr 32.4017

6,2

92 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Inductotherm Dore Furnace (System 7 - S2.005/TU4.001)

Hg 8.80 tpy

0.00

027 lbs/hr 0.0882 327 0.0000

Dore Furnace emissions factor 

derived from 2009 M29 stack test.

System Description: Pregnant Tank (TU4.006)

Hg

8,760.

00 hrs/yr lbs/hr 0.0000

8,7

60 0.0000

No emissions factor available -

closed circuit.

System Description: Barren Tank (TU4.007)

Hg

8,760.

00 hrs/yr lbs/hr 0.0000

8,7

60 0.0000

No emissions factor available -

closed circuit.

System Description: Assay Laboratory

Hg 3.6307 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 440.7382 0.2264

CY 2006 Co-product: 452.80 

lbs/yr.

CY 2007 

Facility Total: 19.0000 0.0072

CY 2007 Co-product: 14.40 

lbs/yr.

CY 2008 

Facility Total: 162.3117 0.2875

CY 2008 Co-product: 575.00 

lbs/yr.

CY 2009 

Facility Total: 49.6118 0.8120

CY 2009 Co-product: 1,624.00 

lbs/yr.

Source: Round Mountain Gold Corporation - Smoky Valley Common Operation: AQOP AP1041-0444.01; NMCP AP1041-2250

System Description: Carbon Regeneration Kiln (S2.121/TU4.001)

Hg

3,312.

00 tpy

0.00

0069

9 lbs/hr 0.6048

8,6

52 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Pregnant Strip Solution Tank (Shares a common stack with S2.121/TU4.002)

Hg

Approx

. 45

gals/mi

n lbs/hr 0.0000

8,7

60 0.0000

Emissions combined with Carbon 

Kiln.

System Description: Barren Strip Solution Tank #1 (Shares a common stack with S2.121/TU4.003)

Hg

Approx

. 45

gals/mi

n lbs/hr 0.0000

8,7

60 0.0000

Emissions combined with Carbon 

Kiln.

System Description: Barren Strip Solution Tank #2 (Shares a common stack with S2.121/TU4.004)

Hg

Approx

. 45

gals/mi

n lbs/hr 0.0000

8,7

60 0.0000

Emissions combined with Carbon 

Kiln.
System Description: Electric Induction Furnace (S2.130/TU4.005)

Hg 47.00 tpy

0.00

158 lbs/hr 0.9227 584 0.0000

Induction Furnace emissions 

factor derived from 2009 M29

System Description: Refinery Electro-winning Vent & Ovens, Assay Laboratory Ovens.

Hg 3.0603 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 57.0585 0.0085 CY2006 Co-product: 17.00 lbs/yr.

CY 2007 

Facility Total: 59.6652 0.0000 CY2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 8.3173 0.0000 CY2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 4.5878 0.0000 CY2009 Co-product: 0.00 lbs/yr.

Source: Homestake Mining Company of California - Ruby Hill Mine: AQOP AP1041-0713.01; NMCP 

AP1041-2252

System Description: Electric Carbon Regeneration Kiln (S2.019/TU4.001)

Hg 94.40 tpy

0.00

077 lbs/hr 0.9810

1,2

74 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Electric Mercury Retort (S2.022/TU4.003)

Hg 5.61 tpy

0.00

0000

8 lbs/hr 0.0007 911 0.1762

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Electric Refinery Induction Furnace (S2.013/TU4.002)

Hg 4.46 tpy

0.00

187 lbs/hr 0.1870 100 0.0000

Furnace emissions factor derived 

from 2009 M29 stack test.

System Description: Electro-winning Cells 1 & 2 (IA1.005/TU4.004)

Hg gals/yr

0.00

054 lbs/hr 4.7304

8,7

60 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Pregnant and Barren Strip Solution Tanks (TU4.005)

Pregnant and Barren Strip 

Solution Tanks vented to a 

common stack with

Hg gals/yr lbs/hr 0.0000 0.0000

Electro-winning Cells, therefore, 

emissions factor is for both units.

System Description: Assay Laboratory

Hg 1.3883 0.0000 Potential to emit (PTE), not actual 
- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 28.7825 0.5000

CY2007 Co-product: 1,000.00 

lbs/yr.

CY 2007 

Facility Total: 35.2201 0.3800

CY2007 Co-product: 760.00 

lbs/yr.

CY 2008 

Facility Total: 1.3883 0.2400

CY2008 Co-product: 480.00 

lbs/yr.

CY 2009 

Facility Total: 7.2874 0.1762

CY2009 Co-product: 000.00 

lbs/yr.

Source: Marigold Mining Company - Marigold Mine: AQOP AP1041-0158.02; NMCP AP1041-

2254

System Description: Carbon Regeneration Kiln (S2.013A/TU4.001)

Hg 741.40 tpy

0.00

0000

9 lbs/hr 0.0041

4,5

15 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Mercury Retort (S2.014/TU4.002)

Hg 9.20 tpy

0.00

0041 lbs/hr 0.0468

1,1

42 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Tilting Crucible Furnace (S2.015/TU4.003)

Hg 5.70 tpy

0.00

0564 lbs/hr 0.1180 209 0.0000

Furnace emissions factor derived 

from 2009 M29 stack test.

System Description: Electro-winning Circuit (TU4.004)

Hg

50,256

.00 tpy

0.00

0041 lbs/hr

0.2653

6,4

70 0.0000

Electro-winning Cells emissions 

factor derived from 2009 M29 

stack test.

System Description: Pregnant Strip Solution Tank (TU4.005)

Pregnant and Barren Strip 

Solution Tanks vented to a 

common stack with

Hg

50,256

.00 tpy

See 

Note

s lbs/hr

Electro-winning Cells, therefore, 

emissions factor is for all three 

units.

System Description: Barren Strip Solution Tank (TU4.006)

Hg

50,256

.00 tpy

See 

Note

s lbs/hr

System Description: Assay Laboratory

Hg 4.0198 0.0000 Potential to emit (PTE), not actual 
- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 908.0610 0.1675

CY 2006 Co-product: 335.00 

lbs/yr.

CY 2007 

Facility Total: 5.2255 0.2450

CY 2007 Co-product: 490.00 

lbs/yr.

CY 2008 

Facility Total: 10.4883 0.5690

CY 2008 Co-product: 1,138.00 

lbs/yr.

CY 2009 

Facility Total: 4.4540 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Borealis Mining Company: AQOP AP1041-2125; NMCP AP1041-2228

System Description: 

Hg 0.0000 0.0000 Facility did not operate in 2009.

CY 2006 

Facility Total: 0.0000 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 0.0000 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 0.0000 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 0.0000 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Barrick Turquoise Ridge, Inc. - Getchell Mine: AQOP AP1041-0292.01; NMCP AP1041-

2249

System Description: Assay/Met Laboratory

Hg 4.9462 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 10.6752 0.0000 CY 2006 Co-product: 0 lbs/yr.

CY 2007 

Facility Total: 4.9660 0.0000 CY 2007 Co-product: 0 lbs/yr.

CY 2008 

Facility Total: 4.9462 0.0000 CY 2008 Co-product: 0 lbs/yr.

CY 2009 

Facility Total: 4.9462 0.0000 CY 2009 Co-product: 0 lbs/yr.

Source: Eden Research, LLC: AQOP AP1041-2511; NMCP AP1041-2638

System Description: Assay Laboratory
Hg 2.7982 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2009 

Facility Total: 2.7982 0.0000 CY 2009 Co-product: 0 lbs/yr.

Source: Royal Standard Minerals, Inc. - Manhattan Mine: AQOP AP1041-1457; NMCP AP1041-

2303

System Description: Dore Smelting Furnace

Hg 4.1040 0.0000

Facility did not operate in 2009

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 0.0000 0.0000 CY 2006 Co-product: 0.00 lbs/yr.

CY 2007 

Facility Total: 4.1040 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 4.1040 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 4.1040 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Newmont Mining Corporation - Phoenix Mine: AQOP AP1041-0220.02; NMCP AP1041-

2247

System Description: Electric Carbon Regeneration Kiln (S2.002/TU4.001)

Hg

2,310.

00 tpy

0.00

0078

5 lbs/hr 0.3022

3,8

50 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Mercury Retort (S2.014/TU4.002)

Hg 16.80 tpy

0.00

0339 lbs/hr 0.6407

1,8

90 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Pregnant & Barren Strip Solution Tanks

Hg 0.0940 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

System Description: Electro-winning Cells

Hg 0.2733 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 2.3061 0.0000 CY 2006 Co-product: 0.00 lbs/yr.
Facility Total:

CY 2007 

Facility Total: 0.4579 0.0000 CY 2007 Co-product: 0.00 lbs/yr.

CY 2008 

Facility Total: 0.8053 0.0000 CY 2008 Co-product: 0.00 lbs/yr.

CY 2009 

Facility Total: 1.3102 0.0000 CY 2009 Co-product: 0.00 lbs/yr.

Source: Barrick Goldstrick Mines, Inc.: AQOP AP1041-0739.01; NMCP AP1041-2221

System Description: Roaster Mill Circuit #1 Air Pre-Heater and Dry Grinding 

Process (S2.204 & S2.205.01 - S2.205.12/TU4.001)

Hg

2,495,

594.00 tpy

0.00

053 lbs/hr 4.10962

7,7

54 0.0000

Roaster Mill Circuit #1 emissions 

factor derived from 2009 M29 

stack test.

System Description: Roaster Mill Circuit #2 Air Pre-Heater and Dry Grinding Process (S2.206 & S2.207.01 - S2.207.12/TU4.002)

Hg

2,404,

814.00 tpy

0.00

662 lbs/hr 52.0001

7,8

55 0.0000

Roaster Mill Circuit #2 emissions 

factor derived from 2009 M29 

stack test.

System Description: Roasters #1 & #2 (S2.209.1 & S2.209.2/TU4.003 & TU4.004)

Hg

5,491,

210.00 tpy

0.02

189 lbs/hr

172.1429

6

7,8

64

60.126

0

Roaster Circuit emissions factor 

derived from 2009 M29 stack test. 

Testing

was conducted during dual 

Roaster operations. Annual hours 

operated is

the average of individual Roaster 

operations. Roaster #1 operated 

7,851

hrs/yr, Roaster #2 operated 7,876 

hrs/yr.

System Description: Roaster Circuit #1 Quenching Process (S2.210/TU4.005)

Hg

2,897,

993.00 tpy

0.00

446 lbs/hr 35.01546

7,8

51 0.0000

Roaster Quench Circuit #1 

emissions factor derived from 

2009 M29 stack

test.

System Description: Roaster Circuit #2 Quenching Process (S2.211/TU4.006)

Hg

2,593,

217.00 tpy

0.00

465 lbs/hr 36.6234

7,8

76 0.0000

Roaster Quench Circuit #2 

emissions factor derived from 

2009 M29 stack
test.

System Description: Analytical Assay Laboratory (S2.051/TU4.007)

Hg 68.00 tpy

0.00

01 lbs/hr 0.8045

8,0

45 0.0000

Assay Lab emissions factor 

derived from 2009 M29 satck test.

System Description: Carbon Reactivation Kiln (S2.004.1/TU4.008)

Hg

12,701

.00 tpy

0.00

041 lbs/hr 3.0861

7,5

27 0.0000

Carbon Kiln emissions factor 

derived from 2009 M29 stack test.

System Description: Pregnant & Barren Strip Solution Tank Circuit A (TU4.009 & TU4.011)

Hg

Not 

Report

ed gals/yr

0.00

05 lbs/hr 4.3800

8,7

60 0.0000

Preg./Barren Tanks emissions 

factor derived from 2009 M29 

stack test.

System Description: Pregnant & Barren Strip Solution Tank Circuit B (TU4.010 & TU4.012)

Hg

Not 

Report

ed gals/yr

0.00

037 lbs/hr 3.2412

8,7

60 0.0000

Preg./Barren Tanks emissions 

factor derived from 2009 M29 

stack test.

System Description: Autoclave Circuit #1 (S2.015/TU4.013)

Acidic 

Operatio

n

Hg

464,33

8.00 tpy

0.00

072 lbs/hr 3.6504

5,0

70 0.0000

Autoclave Circuit #1 emissions 

factor derived from 2009 M29 

stack test.

Testing was conducted in 2009 

during acidic operations mode 

only.

System Description: Autoclave Circuit #1 (S2.015/TU4.013)

Alkaline 

Operatio

n

Hg

60,743

.00 tpy NA lbs/hr NA 387 0.0000

No 2009 NDEP approved M29 

testing during alkaline operations 

mode.

System Description: Autoclave Circuit #2 (S2.016 & S2.017/TU4.014 & TU4.015))

Acidic 

Operation

Hg 918,52 tpy 0.00 lbs/hr 3.2508 3,7 0.0000 Autoclave Circuit #2 emissions 
0.00 086 80 factor derived from 2009 M29 

stack test.

Testing was conducted during 

dual Autoclave operation and only 

during

acidic operations mode. Annual 

hours operated is the average of 

individual

Autoclave operations. Autoclave 

#2 (TU4.014) operated 4,296 

hrs/yr; 

Autoclave #3 (TU4.015) operated 

3,263 hrs/yr.

System Description: Autoclave Circuit #2 (S2.016 & S2.017/TU4.014 & TU4.015))

Alkaline 

Operation

Hg

764,20

0.00 tpy NA lbs/hr NA

3,3

86 0.0000

No 2009 NDEP approved M29 

testing during alkaline operations 

mode.

Autoclave #2 (TU4.014) operated 

3,591 hours in alkaline mode and

Autoclave #3 (TU4.015) operated 

3,186 hours in alkaline mode 

(average of

3,386 hours). 

System Description: Autoclave Circuit #3 (S2.018/TU4.016)

Acidic 

Operatio

n

Hg

531,35

0.00 tpy

0.00

107 lbs/hr 4.6385

4,3

35 0.0000

Autoclave Circuit #3 emissions 

factor derived from 2009 M29 

stack test.

Testing was conducted in 2009 

during acidic operations mode 

only.

System Description: Autoclave Circuit #3 (S2.018/TU4.016)

Alkaline 

Operatio

n
Hg

210,10

1.00 tpy NA lbs/hr NA

1,3

44 0.0000

No 2009 NDEP approved M29 

testing during alkaline operations 

mode.

Autoclave #3 (TU4.016) operated 

1,344 hours in alkaline mode. 

System Description: Autoclave Circuit #4 (S2.019 & S2.020/TU4.017 & TU4.018)

Acidic 

Operation

Hg

1,251,

783.00 tpy

0.00

117 lbs/hr 6.0910

5,2

06 0.0000

Autoclave Circuit #4 emissions 

factor derived from 2009 M29 

stack test.

Testing was conducted during 

dual Autoclave operation and only 

during

acidic operations mode. Annual 

hours operated is the average of 

individual

Autoclave operations. Autoclave 

#5 (TU4.017) operated 5,056 

hrs/yr; 

Autoclave #6 (TU4.018) operated 

5,356 hrs/yr.

System Description: Autoclave Circuit #4 (S2.019 & S2.020/TU4.017 & TU4.018)

Alkaline 

Operation

Hg

556,57

2.00 tpy NA lbs/hr NA

2,5

14 0.0000

No 2009 NDEP approved M29 

testing during alkaline operations 

mode.

Autoclave #5 (TU4.017) operated 

2,430 hours in alkaline mode and

Autoclave #6 (TU4.018) operated 

2,598 hours in alkaline mode 

(average of

2,514 hours). 

System Description: Mercury Retorts #1 (S2.009/TU4.019)

Hg 32.00 tpy

0.00

245 lbs/hr 4.5521

1,8

58 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Mercury Retorts #2 (S2.010/TU4.020)
Hg 36.00 tpy

0.00

087 lbs/hr 1.8740

2,1

54 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Mercury Retorts #3 (S2.011/TU4.021)

Hg 30.00 tpy

0.00

332 lbs/hr 6.1619

1,8

56 0.0000

Retort emissions factor derived 

from 2009 M29 stack test.

System Description: Mercury Retorts #1 - #3 (Cumulative Co-product)

Hg 1.7470

Cumulative co-product for all three 

mercury retorts.

System Description: East & West Refinery Furnaces & Electro-winning Cells combined vented through a common carbon filter and stack (S2.013 

& S2.014/TU4.022 & TU4.023)

Hg 82.00 tpy

0.02

869 lbs/hr 12.5088 436 0.0000

Furnaces's/EW Cells emissions 

factor derived from 2009 M29 

stack test.

Testing was conducted during 

dual Furnace and EW Cell 

operations.

Annual hours operated is the 

average of individual Furnace 

operations.

East Furnace (TU4.022) operated 

442 hrs/yr; West Furnace 

(TU4.023) 

operated 430 hrs/yr.

System Description: Electro-winning Cells only (TU4.024)

Hg

Not 

Report

ed gals/yr

0.00

154 lbs/hr 11.1558

7,2

44 0.0000

EW Cells emissions factor derived 

from 2009 M29 stack test while 

the 

Furnaces were not operating. 

Total EW Cell operating hours 

were 7,680

hrs/yr. Combined Furnace/EW 

Cell operating hours of 436 hrs/yr. 

was

subtracted from total hours 

operated to arrive at 7,244 hours 

of EW Cell

operations only.

System Description: Assay, Mill, Mill Met, Autoclave, Autoclave Met and Roaster Pumphouse Laboratories, Strip Circuit Area and Ore Fines Fee 

System.
Hg 4.4965 0.0000

Potential to emit (PTE), not actual 

- see De Minimis Designation 

Tech. Rev.

CY 2006 

Facility Total: 616.7650

98.550

0

CY 2006 Co-product: 197,100.00 

lbs/yr.

CY 2007 

Facility Total: 708.6590

58.630

0

CY 2007 Co-product: 117,260.00 

lbs/yr.

CY 2008 

Facility Total: 166.0557

87.330

0

CY 2008 Co-product: 134,660.00 

lbs/yr.

CY 2009 

Facility Total: 369.7831

61.873

0 CY 2009 Co-product: 0.00 lbs/yr.

CY 2009 Cumulative 

Totals

Note that this is not the 

industry total value. 

Does not account for a 

few thermal units 

which were unable to 

test in the reporting 

year and alkaline 

operating conditions at 

Barrick Goldstrike 

Autoclaves.

Process 

Emissio

ns

CoProdu

ct

lbs/yr tpy

1,404.14 88.79

CY 2008 Cumulative 

Totals

CY 2008 process emissions were 

largely derived using one 

consistent

FRM testing methodology (Method 

29). Testing protocols were 

reviewed

In March 2010, Barrick tested 

acid vs alkaline ore autoclave 

conditions. This was the 1st 

time such a test had been 

conducted in industry. As 

mercury loading between the 

two conditions is similar, 

prior to test commencement and 

all final report submittals were 

reviewed

Process 

Emission

s

CoProdu

ct

to ensure reporting accuracy. 

Some facilities had entire testing 

events,

lbs/yr tpy or in some cases just one or more 
emissions were not expected 

to be affected. However, 

internal Barrick testing showed 

a notable difference in 

emissions with alkaline 

conditions emitting more Hg to 

the atmosphere. As this was 

discovered in 2010, there is no 

2009 alkaline condition 

emission factor for the 

autoclaves to apply to the 

2009 reporting year. Since the 

2010 test Barrick has 

voluntarily ceased operation 

under alkaline conditions until 

new Hg controls are installed. 

In 2009 ~ 1/3 of autoclave 

operations were in alkaline 

mode. 

runs of a test event, invalidated 

due to

irregularities in testing protocol, 

poor sample handling procedures 

or

laboratory errors.

3,165.90 102.93 Co-product: 205,865.40 lbs/yr

CY 2007 Cumulative 

Totals

CY 2007 process emissions were 

largely derived using one 

consistent

FRM testing methodology (Method 

29) with scattered M101A and 

OHM

Process 

Emission

s

CoProdu

ct

results used in lieu of M29 due to 

test schedule conflicts/logistics 

issues.

lbs/yr tpy

Testing protocals were reviewed 

prior to test commencement and 

all final

report submittals were reviewed to 

ensure reporting accuracy.

4,764.52 97.68 Co-product: 195,361.60 lbs/yr 

CY 2006 Cumulative 

Totals

CY 2006 process emissions and 

co-product values were accepted 

Process 

Emission

s

CoProdu

ct

"as submitted" due to variability in 

testing methodology, emission

lbs/yr tpy

calculation methods and/or the 

lack of current FRM test results.

Barrick's 2010 internal test 

consisted of (5) 2-run Method 

29 tests. 7 of the 10 runs had 

isokinetic issues most likely 

due to the high moisture rate. 

Assuming that the test are 

representative of emissions, 

acid ore emits at ~ 10-5 gr/dscf 

, while alkaline is at ~ 10-3 

gr/dscf. The difference for 

4,468.15 133.26 Co-product: 266,520.00 lbs/yr
2009 could have been as high 

as an additional 600 lbs total, 

(assuming that the [nonvalidated] Barrick test is 

representative). NvMACT is 

underway for the alkaline 

condition autoclave Hg 

controls and should begin 

public notice August 2010.