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--~,~ ... <br />HOM S AYaE ' <br />AlBllq llERgUE OFFICE <br />~~~'~ , , <br />A~Biv~ <br />APR 2 ~ 2002 ~~ <br />Ott <br />Oiyabn o trgn F~ yep <br />dF~c~q <br />April 18, 2002 <br />Mc Bob Oswald t/ <br />Colorado Department of Natural Resources <br />Division of Minerals and Geology <br />701 Camino del Rio <br />Room 125 <br />Durango, CO 81301 <br />RE: HOMESTAKE PITCH RECLAMATION <br />Deaz Mr. Oswald: <br />,~ <br />Enclosed please find the revised 2001 Annual Geotechnical Report for the waste rock disposal areas of the <br />Homestake Pitch Reclamation Project. This report replaces the 2001 Geotechnical Report dated <br />December 31, 2001, and responds to questions and comments provided in your January 7, 2002 letter. <br />Discussion has been added to respond to your questions/comments and the figures revised per your <br />recommendation. <br />The waste rock dumps at the Pitch Reclamation Project have been inspected monthly, except when winter <br />conditions prohibit access, in accordance with the recommended monitoring program. History of the rock <br />dumps has been provided in previous annual reports and is not repeated in this discussion. A site map <br />with piezometer locations is provided as Figure 1. <br />Water levels in all waste rock dump piezometers showed seasonal fluctuations similaz to those observed <br />in past years. A chart with 2001 data is provided as Figure 2. A chart with piezometers levels since 1996 <br />is provided as Figure 3. <br />All data indicates continued normal seasonal influenced variations, with no indication of increasing pore <br />pressure within the waste rock disposal areas. Revegetation of the waste rock dump surface continues to <br />progress with increasing densities of successful growth. This slow yet successful revegetation provides <br />additional stability of the waste rock areas. <br />If you have questions, please feel free to contact me at (505) 287-4456. <br />Very T~r/uly Yours, <br />/~`~ '~~• <br />Alan D. Cox <br />Manager -Grants & <br />Southwest U.S. <br />ec: Bob Ingersoll - Barrick, SLC, Phil DeDycker, DeDycker & Associates, Inc., Vem Kelso, Homestake <br />Mining Company (Pitch Reclamation Project) ,Glenn Ruckhaus -Lynx Enterprises, Inc. <br />6~J / S•D ACADEMY ROAD NE, AL9Ugl1ERq UE, NM 87109 TELE: (5051 028-1621 FAX: (5051 820-1626 <br />