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Golder Associates Ine. <br />20D Union Boulevard. Suite 500 <br />Lakewood. CO USA 80228 <br />Telephone(303)980~0540 <br />Fax(3031985-2080 <br />May 26, 1995 <br />Cripple Creek & Victor Gold Mining Company <br />2755 State Highway 67 <br />victor, co sos6o <br />RE: LEAK DETECTION TRENCH <br />Dear John: <br />III IIIIIIIIIIIIIIII <br />999 <br />GOltlt'Y <br />ASSOCI21~eS <br />Reference No.: 953-2900.007 <br />RECEI -iED <br />MAY 3 0 19..9.5 <br />Division of Mlnerdls a ~eolo9Y <br />On at least one instance during this past week, Soil Liner Fill was placed at the bottom of the <br />Leak Detection Trench as grading material. Generally, grading material is used to provide a <br />smooth surface for the Leak Detection Geomembrane, and fill in any areas that might have <br />been overexcavated during the trenching process. <br />The Soil Liner Fill will provide a smooth surface for the geomembrane, and the small thickness <br />or depth of material required for grading the bottom of the Leak Detection Trench would not <br />result in any appreciable amount of settlement. Therefore, Golder Associates Inc. (Golder) <br />concludes that the use of the Soil Liner Fill for Leak Detection trench grading will not have any <br />detrimental effects on the overall performance of the Leak Detection System. <br />Golder appreciates the ongoing opportunity to provide CC&V with technical support for the <br />Cresson Project. Please contact the undersigned if you should have any questions or <br />comments. <br />Sincerely, <br />COLDER ASSOCL4TES INC. <br />~~ <br />Terry Mandziak <br />Project Engineer <br />~~ ~~~ <br />Dirk Van Zy , .E., Ph. D <br />Strategic Director Mining <br />DVZ/TM/tm <br />Q <br />OFFICES IN AUSTRALIA. CANADA, GERMANY, HUNGARY, ITALY, SWEDEN. UNITED KINGDOM, UNITED STATES <br />