I. --~ ~~~~ GLAMIS MARIGOLD MINING COMPANY

P. O. Box 160

Valmy, NV 89438

Phone (775) 635-2317 Fax (775) 635-2551

RECEIVED

r-nvironmenfal Protection

NOV0 1 2006

Nnv 0 ~ 2006 fNV!RONME~T,j.LPROTECTION

"APC / r't"""'"

October 30, 2006

Mr. Rob Bamford

Nevada Division of Environmental Protection

Bureau of Air Pollution Control

901 South Stewart Street, Suite 4001

Carson City, Nevada 89701-5249

Certified Mail Return Reciept Request No.: 7001 1140000363449807

Re: Glamis Marigold Mine Questionnaire Addendum

Dear Mr. Bamford:

Glamis Marigold Mining Company, has prepared the enclosed Addendum to the Glamis Marigold

Mine Mercury Questionnaire received by the Bureau of Air Pollution Control on March 22, 2006.

The Addendum consists of a new annex for the assay laboratory.

Please append the new annex to the questionnaire. GMMC regrets the inadvertent omission of the

assaylaboratory from the original mercury questionnaireresponse.Shouldyou have anyquestionsor

require additional information, please do not hesitate to contact either Mr. Clay Postlethwaite of

Enviroscientists, Inc. at (775) 826-8822 or me.

Sincerely,

d:~er

Environmental Superintendent

JB:cp

enclosures

cc: Mr. C. Postlethwaite, Enviroscientists, Inc., Reno, NV (without enclosures)

ISSOCQUESTIONNAIREADDENDUMLTRV1.DOC
ANNEX 7. OTHER THERMAL PROCESS UNITS

1. Please provide an identification of other thermal process units, including a

process description and the mechanism by which mercury emissions are released.

(Note: iffacUity has more than 1 "other thermal process" process, copy this

Annex 7 and complete a separate copy for each such unit.)

a. Description: Assav Laboratory. The Assay Laboratory conducts chemical

illillJyseson geologicmateria~ sourcesincillQetwo dryingovens.two

cupellation furnaces. two hot plates. one bullion oven. one annealing oven and one

atomic adsorption machine. All of the devices are ducted directly out of the building

or operate under exhaust hoods designed to capture the exhaust from the operation of

these devices.

2. An estimate of the actual mercury air emissionsreleased from such unit and the basis of

such estimate, in accordance with the following hierarchy of data:

. Direct testing and measurement.

. Based on engineering calculations that take into account the average

mercury content of the ore processed, the amount of ore processed and the

potential for mercury releases from the specific processes utilized to

recover gold.

Estimated mercury emissions from unit = 0.002 pounds for 2004

Basis of estimate: Total samples processed and average mercurv

content of the samQles.

3. Circle the code numbers for the type of air pollution control device and the type of fume

capture system used:

APC device ID no.: Fume capture system:

0 None

Page 1 of 2

1 Fabric filter

2 Wet scrubber

3 Carbon adsorption unit 3 Other:

4 Other:
Yes Lhnclose summary measurement data, including data on mercury

speciation, if available, the test methods used, information on

actual production or processing rates and on process conditions at

the time the measurements were made, and a statement that any

APC devices (if present) were operating normally during the test, " r i+'n "'+ ...t..",+ +t..{'j ",t.."""""",,,1 "'...<>..,,+;~~ ",,~,.I:..:,,-- , - u~u_~ ~~U u.~ tb' u.nu!~du:V' u1ahvu.

1

Page 2 of2