ANNEX 7a. OTHER THERMAL PROCESS UNITS - 

Met Lab System 72, s 2.074 - 2.077 

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

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

(Note: iffacility has more than I "other thermal process" process, copy this 

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

a. Description: TWO Beach top r~~sters ----------------- 

2. An estimate of the actual mercury air emissions released £rom 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 = ATA 

Basis of estimate: lY4 

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: 1Vl1I 

Nodevice is d N- - - - - - - 

Fabric filter & Side-drtafforcannpyhuod 

2 Wet scrubber 2 Close-fitting hood or direct process vent 

3 Carbon adsorption unit 3 Other: 

4 Other: 
4 Exit Exhaust Vent (or Stack) Parameters (for gaseous streams): 

height: 23 ft 

diameter: 231 ft 

flow rate: 28.63 ftls 

temperature: ddBO F 

5. Describe any work practices or other measures that prevent emissions &om this 

operation: 

6. Have air emission tests been conctucted on these o~m? 

- 

1 Yes [Enclose 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 measuremeats were made, and a statement that any 

APC devices (if present) were operating normally during the test, 

or if not, what the abnormal operating conditions were.] 

7. Additional comments and information: 
ANNEX 7b. OTHER THERMAL PROCESS UNITS =.,;- f 

r .. .!. 

Assav Lab Svstem 70, S 2.051 - 2.056 

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

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

(Note: if facility has more than 1 "other therma I process" process, copy this 

hw+nnex 7 and compleie a separate copy for each such unit.) --!, -- .jJ 

t -!., , ,, *.j s r C. -, - I,. I I In -r -.?A 

257 . . 4 ,, . ' , , '--a 

% lkscription: 4%- Sev~a cs##&*ai Icvfrf"@e #ssaj?ftarvswces +::. .,., !ti/ . , .. , '.,. :_Ub .,,.L&~~~q+,- >-Y

-------- - .I . 

2. An estimate of the actual mm & emks3.0m rehed hrn such unit and the his of .< 

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

Direct te&g d measuremen 

Based on engineering calculations that take h mount the average mercury 

content of the ore processed, 21243 araa?onnt of ere proce~sed md the potential for 

mereusy releasas from the specific processes utilized to recover gold. 

Estimated mercury emissions from unit = 1\% 

Basis of estimate: :VA4 

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

capture system us& 

APC device ID no. : Fume capture: system: 

No device is used None 

2 Wet 

3 Carbon adsorption unit 3 Other: 

4 Other: 
4. Exit Exhaust Vmt (or S*) Pmetm (foT gaseous &ems): 

C, height: 38 18 I 

flow rate: 38.32 ft 

1 Yes [Enclose summy measuremd &&-at jmd&g &a@ on mw 

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

&ud pdu&icm r~lr pr-9- atm & m ~~DQ-S co&lom at 

the.tk the m4ww wee jnixit;, d a st nk&at any 

APC de$i~m (if pmziuznt) were q~~*ingj mm&y dwbg &e test, 

or if not, what the abnormal operating conditions were.] 

7. Additional comments and information: 
ANNEX 7c, OTHER TEEBMAL PROCESS UMTS - 

Met Lab Svstem 

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

process description and the me~hanism By which mercury en;lissiqns He released. 

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

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

2. An estimate of the actual mercury air emissions released £tom such unit 4 thethr=bwis of 

such estimate, in accordance with the fbhwing hierarchy of data 

Direct tati-ng and measurement. 

* Based an qjnming c&ul,atiow that take int0 a~awt tb average mercury 

content of th orrrs pracwed, th-mm~ of om p~owsw.4 ad the potential fur 

mercury relemea from tk specifis polesstm utildzed to rewver gold. 

Estimated mercury emissions from unit = 

Basis of estimate: 1Y4 

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

capture system used: 

APC device ID no.: Fume capture system: :Yd4 

Q devkc is used D X~ne 

1 Fabric filter 1 Side-draft or canopy hood 

2 Wet scrubber 2 Close-fitting hood or direct process vent 

3 Carbon adsorption unit 3 Other: 

4 Other: 
4. ExitExhaustVm(m g* 

height: f :W< :? :X&-V.Bf. 

diameter: fi 

flow rat& ftls 

5,.br~a~ es or other measures sions &om this + q\h;-..bQ$.,j -3iZM-' 

L~~. .w %% 5 jiT: -1 

,.n;rr*! ~:t?~-\r ' 

6. Have air emission tests been conducted on these operations? 

; , , , & ,:: Yes [Enclose summary measurement data, including data on mercury , . .>- :-3:- ,, ' .*4 v I., J rr 

speciation, if available, the test methods us~d, information on - ' Y. .*. actual production or processing rates and on process conditions at 

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

APC devices (if present) were operating normally during the test, 

.Itb 

1. 

or if not, what the abnormal operating conditions were.] w#g2T 

7. Additional comments and in6ormation: 
ANNEX 7d. OTHER THERMAL PROCESS UNITS - 

4 mercuy emissiom are released. 

2. An estimate of the actual mercury air emissions released fiom such unit and the his of 

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

Direct testing art$ measwment. 

Based on engineering cdculatiolns that take bta ac:coumt the average mercury 

cantent of the ore processed, the rtnzouat of om processed md the potential for 

mercury releases from the spsifi~ procases utilized to reamer gold. 

Estimated mercury emissions fiom unit = iVA 

Basis of estimate: iM4 

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: :%?4 

m;li~g ; 1 ., J1 .?.+ .- :>.;jL;.[l: 

BB ~Yone 

1 Side-draft or canopy hood 

2 Close-fitting hood or direct process vent 

3 Carbon adsorption unit 3 Other: 

4 Other: 
4. Exit Exhaust Vent &tack) P- (for gaseous ~m): B* 

height: Et 

diameter: ft 

flow rate: ftls 

temperature: F 

5. Describe any work practices or other measures that prevent emissions fiom this 

operation: 

6. Have air emksion tests been cuJlut,tL;ted on these operations? 

1 Yes [Enclose 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, 

or if not, what the abnormal operating conditions were.] 

7. Additional comments and information: