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Newmont-Cripple Creek&Victor Gold Mine <br /> Technical Specification No.02200.DOCX <br /> Squaw Gulch VLF ■ <br /> Project No.475.0106.006 <br /> June 15,2016 <br /> CERTIFYING ENGINEER approved portion of, excavation and Structural Fill <br /> placement in the valley leach facility. <br /> 2. CONTRACTOR shall process, place and compact the Soil Liner Fill to achieve a <br /> coefficient of permeability of less than 1x10-6cm/sec, measured according to ASTM <br /> Method D5084, Method D. Any Soil Liner Fill not meeting the permeability <br /> specification shall be removed and replaced with material meeting the permeability <br /> specification, at no additional cost to CC&V. <br /> 3. CONTRACTOR shall place and compact the Soil Liner Fill in loose lifts such that the <br /> compacted lift thickness is a minimum of 12-inches. <br /> 4. CONTRACTOR shall compact the Soil Liner Fill to at least 95 percent of the <br /> maximum dry density as determined by the Standard Proctor density test (ASTM <br /> D698). The moisture content shall be within +3% to -2% of the optimum moisture <br /> content. Both moisture and density shall be uniform throughout the lift. If the Soil <br /> Liner Fill cannot be conditioned to meet the placement specifications, the material <br /> shall be removed and replaced with new Soil Liner Fill at the CONTRACTOR's <br /> expense. The CONTRACTOR shall reduce the clod size of the soil liner fill to a size <br /> that is acceptable to the CERTIFYING ENGINEER, the method by which will be <br /> approved by CERTIFYING ENGINEER and MANAGER prior to implementation. <br /> 5. The moisture content of the Soil Liner Fill shall be uniform throughout prior to and <br /> during compaction of the material. CONTRACTOR shall be responsible for meeting <br /> moisture content and compaction SPECIFICATIONS. If the Soil Liner Fill cannot be <br /> conditioned to meet the placement SPECIFICATIONS, the material shall be removed <br /> and replaced with new Soil Liner Fill at no additional cost to CC&V. MANAGER may <br /> require CONTRACTOR to moisture condition Soil Liner Fill at stockpile at least 24 <br /> hours prior to the Soil Liner Fill being placed. <br /> 6. CONTRACTOR shall place Soil Liner Fill to form a continuous monolithic material. If <br /> a lift of compacted Soil Liner Fill dries out during placement operations, <br /> CONTRACTOR shall scarify, moisture condition the dry soil and recompact the lift. If <br /> a lift of compacted Soil Liner Fill becomes overly wet due to precipitation or over <br /> watering, CONTRACTOR shall allow the wet soil to dry to the specified moisture <br /> content range before recompaction of fill and placement of geosynthetic materials. <br /> 7. CONTRACTOR shall assist CQA Monitor in obtaining soil samples for CQA testing. <br /> Soil Liner Fill sampling shall be scheduled by CQA Monitor with CONTRACTOR to <br /> facilitate CQA field testing. <br /> 8. CONTRACTOR shall maintain Soil Liner Fill stockpile areas in a free-draining <br /> condition. The CONTRACTOR will maintain Soil Liner Fill stockpiles and Soil Liner Fill <br /> placed within the limits of the valley leach facility to prevent the drying out of the <br /> surface. <br /> Page 15 <br />