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Newmont-Cripple Creek&Victor Gold Mine <br /> Technical Specification No.02200 REV D <br /> Squaw Gulch VLF ■ <br /> Project No.475.0106.006 <br /> March 13,2020 <br /> SECTION 02200.0 EARTHWORKS <br /> 1. PART 1: GENERAL <br /> 1.1. Summary <br /> This SPECIFICATION describes site preparation, excavation, stockpiling of soils for earthwork if <br /> necessary, and placement of Structural Fill,Select Structural Fill, Coarse Shaft Backfill, Underdrain <br /> Fill, Low Volume Solution Collection Fill, Bedding Fill, Leak Detection Fill,Soil Liner Fill, Drain Cover <br /> Fill, Fine Shaft Backfill, Pipe Bedding Material, and Granular Filter Material for the valley leach <br /> facility. <br /> 1.2. Related Sections <br /> Refer to the following Sections for related work: <br /> ■ Section 01050.0- Staking and Construction Certification Documentation <br /> ■ Section 02776.0- Geomembrane <br /> ■ Section 02777.0- Geotextile <br /> 1.3. Tolerances <br /> A. Limits of excavation, Structural Fill, Select Structural Fill, Coarse Shaft Backfill, Underdrain <br /> Fill, Low Volume Solution Collection Fill, Bedding Fill, Leak Detection Fill, Soil Liner Fill, <br /> Drain Cover Fill, Fine Shaft Backfill, Pipe Bedding Material,and Granular Filter Material for <br /> the valley leach facility are defined by the lines and elevations shown on the DRAWINGS. <br /> All fill shall be placed to the minimum thicknesses shown on the DRAWINGS. <br /> B. Finished grades shown on the DRAWINGS are given in feet, and shall slope uniformly <br /> between given spot and contour elevations, without sag or humps. All grades shall <br /> provide for natural runoff. <br /> C. The Soil Liner Fill and Bedding Fill shall have a minimum thickness of 1.0 foot. <br /> D. The Low Volume Solution Collection Fill will have a minimum thickness of 3.0 feet at all <br /> times, and the Drain Cover fill will have a minimum thickness of 2.0 feet at all times. <br /> E. Clearance of pipes with respect to regulated boundaries will be checked by MANAGER. If <br /> clearances are inadequate, CONTRACTOR shall backfill trenches to compaction <br /> SPECIFICATIONS and relocate trenches at CONTRACTOR's expense. <br /> F. Correction of over-excavation and backfilling shall be to CONTRACTOR's account. <br /> Page 1 <br />