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u <br />Golder Associates Inc. <br />200 Union 8oulevord, Suite 500 <br />Lakewood. CO USA 80228 <br />Telephone (303) 980-0.540 <br />Fax (303)985-2080 <br />January 9, 1996 <br />Cripple Creek & Victor Gold Mining Company <br />275 State Highway 67 <br />Victor, CO 80860 <br />Attention: Mr. Ron Roberts <br />~l <br />fur Ref: 943-2847.001 <br />RE: INTERFACE SHEAR STRENGTH TEST RESULTS FOR PHASE II CRESSON <br />PROJECT <br />Dear Ron: <br /> <br />Golder Associates Inc. (Golder) has evaluated the :interface shear strength for the liner <br />configurations proposed for the 1996 Phase II construction activities. Golder would like to <br />take this opportunity to present the test results from the interface shear strength testing <br />program to the Cripple Creek & Victor Gold Mining Company (CCBcV). <br />Golder has performed interface shear strength on a variety of configurations. Tests were <br />performed using site specific material where possible, and included the materials meeting <br />the following gradations: <br />1. I?rain Cover Fill <br /> <br />U. S. Standard <br />Sieve ,~ <br />1-1/2 inch <br />3/4 inch <br />3/8 inch <br />No. 4 <br />No. 40 <br />No. 200 <br />Percent Passing <br />by Drv Weig,~ <br />100 <br />70 - lOG <br />40 - 70 <br />5-50 <br />0-20 <br />0-8 <br />.__, __ - ~.-- ~ .. .~- .. ......... ..- ....... ....r-.r... •~.. n.rr.. i .~ •.n V'~tr nom. • ~ ...T=.~ [-.-_C <br />