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Golder Associates Inc. <br />44 Union Boulevard, SuiTe 300 <br />Lakewood, CO USA 80228 <br />Telephone (303) 980-0540 <br />Fax (303) 985-2080 <br />January 29, 2003 <br />Cripple Creek & Victor Gold Mining Company <br />P.O. Box 191 <br />1280 State Highway 67 <br />Victor, Colorado 80860 <br />Attention: Mr. Ron Roberts <br />RE: PHASE Nb SOLUTION COLLECTION PIPE INSTALLATION <br />Deaz Ron: <br />.Our Ref: 003-2203 <br />Golder Associates Inc. (Golder) has prepazed this letter for the Cripple Creek & Victor Gold Mining <br />Company (CC&V) regarding the removal of two sections of solution collection piping from within <br />the Phase IVb Valley Leach Facility (VLF) footprint. The two sections to be removed aze: <br />• The section of piping south of the Eastern PSSA Berm, below the 9624 road. These solution <br />collection pipes can be removed from the VLF as they were to be connected to the Phase IVa <br />solution collection pipes. The Phase IVa solution collection pipes were removed from the <br />VLF as presented in a Golder letter, dated April 12, 2002. With the Phase IVa pipes removed, <br />this section of the Phase IVb solution collection pipes is no longer needed; and <br />The section of solution collection piping located south of the Western PSSA Bens, below the <br />9624 road. These solution collection pipes can be removed from the VLF because they aze <br />located on a 2.5 H:1V slope that naturally drains into the Phase III portion of the VLF. In <br />addition, the Dmin Cover Fill (DCF) has a hydraulic conductivity of 0.1 cm/seo, which is <br />considered to be high enough to prevent building a hydraulic head greater than 2 feet on a <br />2.5 H:1 V lined slope. Therefore, solution collection piping is nobneeded in this azea. <br />Golder appreciates the opportunity to provide ongoing CQA services for the Cresson Project. Please <br />contact the undersigned with any questions. <br />Sincerely, <br />GOLDER ASSOCIATES INC. r <br />'f'~' <br />John F. Lupo, PhD., P.E. <br />Sr. Project Manager <br />JFUdIs <br />I:\00\1203\OIOOW03I203.0100.05]bSivLpiye0103.doc <br />cc: Bob Nichols <br />Kim Morrison <br />_~ -A t,.~,alcl~ <br />OFFICES ACROSS ASIA, AUSTRALASIA, EUROPE, NORTH AMERICA, SOUTH AMERICA <br />