REP19643

• Permit No: M1988112
• IBM Index Class Name: Report
• Doc Date: 3/31/1991
• Doc Name: SAN LUIS PROJECT MARCH 1991 ACTIVITIES & ACHIEVMENTS
• Media Type: D
• Archive: No

_1
` SAN LUIS PRD,IECr ~ III'IIIII'll"~'II' ,:
• ., March 1991 sss
Activities and Achievements
No injuries this month. MSHA inspected the site, very favorable with no
citations. implemented lock out procedure.
Mined total short tons 381,954. Ore hauled to stockpile was 111,293 s.t.
at .051 Au (drill sample assay). Waste rock was 151,861 s.t. and Topsoil
removed was 118,800 s.t.
Started the mill 3/14/41 with many material balance problems. After
addressing these automation and mechanical challenges, it appears the
plant will handle design.
Milled 54,576 dry short tons assuming 4% moisture. Head grade at cyclone
u/flow was .041 Au oz/st. Tails avg. .009 Au oz/st. Giving us an avg.
start up recovery of 78.05%. Estimate 1,746 Au oz/st in solution. (based
on monthly composites)
Continued to refine ore control sampling and assaying. Sent duplicate
samples out to BM lab and 3rd party lab for confirmations.
Completed MLRD annual report. Reported augmentation plan to Coloaado
Division Water Resource Engineer. Attended final arguments in Water
Court for our final decree.
Attended The Trinchera Irrigation Company's annual board meeting.
Installed all flow totalisers and power meters on all wells on the farm
to comply with decree.
Sent 41576 D8K crawler out for major rebuild. Continued to push fbr
better availability of mining equipment.