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Surface water diversion ditches have been constructed on the west, east, and south sides of the waste pile; these ditches drain into a sedimentation pond immediately southeast of the pile. PROPOSED WASTE PILE MODIFICATIONS To comply with the original waste pile design, certain modif- ications to the present waste pile configuration will have to be made. They will include flattening of the slopes to the design value of 2(H):1(V); and recompaction of the waste pile material to the design value of 90 percent in those parts of the pile that may be of importance to the pile sta- bility. Both of these modifications can be achieved by using alter- native design concepts. For instance, the toe of the pile may be relocated either outside or inside the pile or at its present location. Such relocations will depend on the space available between the toe of the pile and the drainage ditch; some alternatives may require relocations of the ditch. The scope of the proposed study is to prepare one or two alternatives of the waste pile modifications that would be acceptable to both Cyprus and the Mined Land Reclamation Division. The method of the proposed study is outlined in the following section of this proposal. PROPOSED INVESTIGATION AND DESIGN SAMPLING OF WASTE PILE MATERIAL Six bulk samples of the waste pile material will be obtained at selected locations around the waste pile. The material will be obtained from shallow test pits, excavated by a back- hoe (provided by Cyprus). A CH2M HILL geotechnical engineer or field geologist will supervise the sampling, log the pits, and perform density tests in the field. TESTING OF WASTE PILE MATERIAL Basic classification and compaction testing of the six samples will be performed in the CH2M HILL Denver laboratory. The following tests will be performed: gradation (including hydrometer when required), Atterberg limits, and laboratory compaction tests. DEN/40Y/020 2