1996-10-08_INSPECTION - M1977378

• Permit No: M1977378
• IBM Index Class Name: INSPECTION
• Doc Date: 10/8/1996
• Doc Name: Bulkhead Pre-Pour Insp., Gold Prince Mine.
• From: DMG
• To: Sunnyside Gold Corp
• Inspection Date: 9/23/1996
• Media Type: D
• Archive: No

999
STATE OF COLOfZADU
(VISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1 31 3 Sherman St., Room 215
Denver, Colorado 80203
Phone [phone]
FAX [phone]
,� DENVER DEPARTMENT OF
DATE: "October 8, 1996 OFFICE NATURAL
RESOURCES
TO: Larry Perino, SG Reclamation Manager Roy Romer
Governor
James S.Lochhead
FROM: Wally Erickson _Alf6 Executive Director
Michael B Long
RE: BulkFSead Pre-pour Inspection, Gold Prince Mine, Sunnyside Gold Corp','sionDirector
CDPS No. CO-0044768, DMG File M-77378.
Pursuant to DMG 9/16/96 memo, DMG Durango staff conducted a pre-pour inspection of
the preparations completed for the Gold Prince adit interior bulkhead.
Inspection Date: 9/23/96 Inspection occurred from 10:30 am - 1 :00 pm (2.5
hour inspection + 4 hours total travel time)
SGC Representative: Mr. Terry Morris
DMG Inspector: Wally Erickson
Field Conditions: Cloudy, warm, muddy conditions due to snow melt. Access
road was well maintained.
Observations: Previous adit closure had been removed. Preparations for concrete pour
for interior bulkhead were near completion. Interior bulkhead location was approximately
150' from portal mouth. Tunnel constriction at prepared location allows final bulkhead to
function as wedge plug.
Loose rock was not observed at interior bulkhead location. Tunnel walls and roof at
interior bulkhead location were clean and dry. SGC representatives stated that
preparations included removal of loose rock, sandblasting, washing, and vacuuming of
roof, walls and floor. No open fractures were observed at the interior bulkhead location.
Parent rock appeared competent, one mineralized fracture observed in roof. Small pump
was installed and operating, directing tunnel drainage through bulkhead location. Floor of
bulkhead location will be final washed and vacuumed, and pump removed, prior to pour.
Concrete forms were constructed of 8"x 8" timbers and 2"x 12" treated fir lumber.
Concrete forms fitted tightly with parent rock. Forms were well braced with 2.5" drill
pipe. Drill pipes were secured to angle iron, angle iron were bolted to resin bolts.
Distance between interior form faces was 5'2". Temperature and shrinkage rebar cages
were constructed of #4 rebar for vertical members and #5 rebar for horizontal members.