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C ~ Cripple Creek & Victor Gold Mining Company <br />pp A Joint Venture - ANGLOGOLD (COLORAPO) CORP., Manager <br />RTV Operations Office <br />IIJJCC.. P.O. Box 191 • 100 North 3rd Street <br />Victor, Colorado 80860 <br />(719) 689-2977 • Fax (719) 6893254 <br />Sent Certified Return Receipt Requested <br />7002-2410-0002-6718-5438 <br /> <br />January 16, 2004 <br /> YkM.. Sb e,i <br />Mr. Berhan Keffelew <br />Environmental Protection Specialist ~~.2 D~ZL~ <br />Colorado Department of Natural Resources <br />Division of Minerals and Geology Division of Minerals ~ E <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver Colorado 80203 <br />Re: Minine Permit M-1980-244. Cripple Creek & Victor Gold Mining Company <br />(CC&V), Cresson Project. Valley Leach Facility (VLF). Phase N Low Volume Solution <br />Collection System (LVSCS) <br />Deaz Mr. Keffelew: <br />CC&V completed construction and commenced operation of the Phase N Pregnant <br />Solution Storage Area (PSSA) of the VLF in the spring of 2003 and completed the Phase <br />Nb ore storage azea and commenced operation in the fall of 2003. The construction was <br />completed in accordance with approved specifications and Certification Reports were <br />filed with and approved by the Division of Minerals and Geology. <br />The Phase N LVSCS is designed and installed as part of the triple lined containment <br />system for the Phase N PSSA. LVSCS operation includes the collection, capture and <br />pumping of low volume solutions. The LVSCS has operated routinely since <br />commencement of Phase N VLF operations. Inflow rates and pumping rates at the <br />LVSCS have varied as expected during VLF operations. <br />CC&V observed increased flow rates into the LVSCS following ore loading in the <br />vicinity of the Phase N PSSA . The placement of approximately 120 feet of ore <br />increased pore pressure on the LVSC gravel fill in between the upper and lower synthetic <br />liners, thus reducing pore space, and pushing water to the LVSCS sump and pumps. As <br />previously discussed with DMG, the increased flow is primarily a result of movement of <br />meteoric water trapped between the upper and lower synthetic liners during the <br />construction period. <br />The LVSC5 was open to the atmosphere during construction for a period of <br />approximately 7 months. During this time period, approximately 7 inches of precipitation <br />%~I M <br />I o <br />o ~ <br />~yy~ <br />~~~ <br />°' a <br />a o <br />o <br />~ ~ ~~ <br />~d <br />~m m2 . <br />z o,M1 <br />moo°? <br />