1997-04-07_REVISION - M1988112 ‎(2)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 4/7/1997
• Doc Name: DAILY REPORT
• Type & Sequence: AM1
• Media Type: D
• Archive: No

DAILY REPORT
PROJECT NAME
SAN LUIS MINE
PROJECT NUMBER: 92401.00
REPORT DATE:
4/9/97
TO: DAVE HALLMAN, SRK PROJECT ENGINEER
FROM: GLENN GUYER, SRK SENIOR FIELD TECHNICIAN
SUBJECT: LINER REPAIR AND EQUIPMENT EXTRACTION FROM TAILINGS
IMPOUNDMENT.
I arrived on site at 0800 hrs. The track-hoe, which had become
bogged down in the tailings at co-ordinates N-207571.2, E-
2039767.3, at top of tailings elevation 8606.0-ft., on the 8th of
April mid-morning, had appeared to have settled approximately two
feet over-night. The contractor and I discussed the use of geo-
cloth spread on top of the tailings prior to the construction of
a six foot high ramp/causeway, to reach the sinking track-hoe.
The Geo-cloth was brought to the tailings area and spread and
overlapped approximately two feet at the edges, out to the hoe.
Two mine haul trucks, one D-SM dozer, one D-SN dozer anc. one 992
front-end loader were used to haul fine grained material for the
construction of the causeway.
Due to excessive pore pressure build-up
felt that the structure was to unstable
attempt to extract the track-hoe in the
agreed that the pore pressure would pro
and that any attempt to extract the hoe
following day. The hoe appeared to stop
eight feet in depth.
beneath the causeway, I
to allow equipment to
P.M. The contractor
ably dissipate cvernight
could be done on the
sinking at approximately
The mine surveyor and I surveyed the exact location of the
sinking equipment and confirmed that the surface of the tailings
to the liner was indeed twenty feet in depth.
The track-hoe bogged in the tailings was to clean the damaged
liner for repairs. This delayed the repair process.
Glenn Guy SRK F' e presentative RECEIVEC'
DALY49 . WP6 MAY 0 ~ 1997
DNiaion of Minerak & G~elagy