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Cripple Creek&Victor Gold Mining Company <br /> Squaw Gulch VLF Phase 2A Part 3 <br /> Record of Construction Report ■ <br /> 475.0106.032 <br /> July 2,2020 <br /> 3.1.2. Geomembrane Testing Standards <br /> Thickness (ASTM D5199/D5994) <br /> ➢ Density (ASTM D792, Method B) <br /> ➢ Carbon Black Content (ASTM D4218) <br /> ➢ Carbon Black Dispersion (ASTM D5596) <br /> ➢ Tensile Properties (ASTM D6693) <br /> Ultimate Elongation (ASTM D6693) <br /> ➢ Puncture Strength (ASTM D4833) <br /> Peel and Shear Strength (ASTM D6392) <br /> 3.2. Earthworks Construction Quality Assurance <br /> All earthwork activities for the Squaw Gulch VLF Phase 2A Part 3 project were performed in <br /> accordance with the design drawings and project specifications as discussed in Section 2. The <br /> CQA Monitor observed, documented, and performed testing during material placement. This <br /> included; ensuring the proper materials were placed, fills were free of deleterious materials, lift <br /> placement was performed uniformly and on a firm and unyielding underlying layer, haulage <br /> traffic was spread across fill surfaces when practical, moisture conditioning was performed <br /> uniformly with acceptable moisture content, the proper method specification was used when <br /> applicable, and specified densities were achieved during field testing. Earthworks laboratory and <br /> field testing and frequencies are summarized in Table 2. <br /> The CQA Monitor checked ambient temperatures and logged the daily high and low <br /> temperatures, maximum wind speeds and amount of precipitation in Table 3. If earthwork <br /> activities were performed while the ambient temperature was below 32°F,fill temperatures were <br /> monitored by the CQA Monitor to ensure no frozen material was placed. Ambient and fill <br /> temperatures are presented in Table 4. <br /> 3.2.1. Structural Fill <br /> Squaw Gulch VLF Phase 2A Part 3 was constructed by placing 1,323 cy of SF. The particle <br /> size distribution and Atterberg limits testing frequencies were one sample for every <br /> 50,000 cy. A minimum of one SF sample was required to be tested for particle size and <br /> Atterberg limits based on the quantity of material placed. A total of one SF sample was <br /> tested with passing results. SF laboratory testing is summarized in Table 5 and individual <br /> test results are presented in Appendix 1-11.1. <br /> No laboratory compaction testing was performed on the SF placed within the Squaw <br /> Gulch VLF Phase 2 area, as all SF material contained more than 30 percent retained on <br /> P:\Projects\0106.032 VLF2 Phase 2 CQA\J-REPORTS\Cert Report-Phase 2A Part 3\475.0106.032 CCV PHASE 2A Part 3 ROC <br /> REPORT.docx <br /> Page 8 <br />