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Div,sion o[ Minerals and Geology - S•Orc Smdy <br />Solid Samples <br /> <br />F/NAL REPORT <br />A total of nine (9) solid samples, each contained in a sealed 5-gallon plastic bucket, were <br />received on 9/11/95. Moisture content was measured on each solid sample by air drying a <br />sample split at room temperature for several days. The sample I.D.'s and moisture contents <br />are listed in Table 2. <br />Table 2: Solid Sample I. D's and Moisture Content <br />Sample I.D. Moisture Content <br />(`% wet wt.) <br />P-1, Solids 6.22 <br />P-2, Solids 6.43 <br />P-3, Solids 9.24 <br />P-4, Solids 5.91 <br />Saratoga Hcap, Solids 7.31 <br />Druid Heap, Solids 9.57 <br />BMG, solids 6.19 <br />M-77-215-L, Solids 20.4 <br />M-77-215-U, Solids 21.1 <br />Prior to obtaining solid sample splits for testing, each bucket was thoroughly blended several <br />times by alternately rotating end over end and then side [o side. Sample splits used for testing <br />were then removed directly from the each sample container using a large scoop. <br />TEST DESCRIPTION -Single Contact Batch Leachability Testing <br />Single contact batch leachability tests were performed on selected solid samples by combining <br />measured quantities of "as-received" solid sample and synthetic meteoric leaching solution in <br />one-gallon plastic screw cap jars. The synthetic leaching solution was prepared by adjusting the <br />pH of deionized water to 5.0 with a dilute 60/40 mixture of sulfuric and nitric acids. This <br />solution was selected to approximate the chemistry of natural precipitation likely to occur in <br />Colorado. Below is a summary of test conditions utilized during each batch test <br />-2:l liquid to solid ratio <br />-24 hour contact time. <br />-cominuous mixing during contact time achieved using bottle roll apparatus. <br />-solid/liquid separations accomplished utilizing a pressurized filter press. <br />Analytical samples of leacha[e generated from each batch test were further prepared by 0.45um <br />memhrane filtering and appropriately preserving prior to submittal for the required analyses. <br />CHEMAf ENVIRONMENTAL SERVICES 2 November, 1995 <br />