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HOM1~ASE <br />GRANTS NM OFFICE <br />December 21, 2005 <br />RgCeiV~~, <br />SAN ~ 4 ~006`~ <br />DNisi~ of, ~ RF~~'ld OfF~ <br />-als ~ ~eofogy <br />Mr. Bob Oswald <br />Colorado Department of Natural Resources <br />- -Division of Minerals and Geology <br />701 Camino del Rio, Room 125 <br />Durango, CO 81301 <br />RE: HOMESTAKE PITCH RECLAMATION PROJECT <br />~' 2005 ANNUAL GEOTECHNICAL REPORT (M-1977-Ofl4HR) ~ <br />Deaz Mr. Oswald: <br />Alan D. Cox <br />Project Manager -Pitch <br />RECEB!!E® <br />JAN 0 92006 <br />pilrision of pginerels aoi (ieeiuyV <br />Attached please Eind the 2005 Geotechnical Report for the waste rock disposal azeas at the Homestake <br />Pftch Reclamation Project The waste rock dumps were inspected monthly in 2005, except when <br />winter conditions prohibited access, in accordance with the recommended monitoring program. The <br />history of the rock dumps has been provided in previous annual reports and is not repeated in this <br />discussion. A site map with piezometer locations is provided as Figure 1. Detailed analysis and <br />presentation of the 2005 data from all piezometers aze provided in the attached report <br />Water levels in the waste rock dump piezometers showed seasonal fluctuafions similar to those <br />observed in past yeazs. Please note that, prior to October 2001, data was not obtained from <br />piezometer IC10600 due to the presence of a gravel obstruction that blocked the passage of the <br />piezometer. Visual inspections conducted in 2005 indicate stable conditions for the Indian Creek and <br />Tie Camp waste rock dumps. A chart with 2005 data is provided as Figure 2. A chart with <br />piezometers Ievels since 1996 is provided as Figure 3. We have labeled the Y-axis on these plots as <br />depth to water from ground surface. <br />If you have questions, please feel free to contact me in the Grants NM office (505) 287.4456 x25 or via <br />cell phone at (505) 400-2794. <br />Sincerely, <br />i~~~~~~~^~ ~~ <br />Alan D. Cox <br />Project Manager <br />Pitch Reclamation Project. <br />cc: Rocky Chase - Barrick Management Corp. <br />Vem Kelso - Homestake Mining Company <br />Phillip De Dycker - AES-Lynx <br />~ HOMEBTAKE MINING CNMPANY Oi CALIFQ RNIq O P, O. BoX 9B, ra Rq NTB, NM S70Z0 <br />~~s <br />` TeLE: 15081 287.4456 ~' FqX: 1505) 287-9289 <br />