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Cripple Creek&Victor Gold Mining Company ■ <br /> Squaw Gulch VLF Phase 2A Part 2 ■ <br /> Record of Construction Report <br /> 475.0106.032 <br /> September 30,2019 <br /> 3. QUALITY ASSURANCE/QUALITY CONTROL <br /> QA/QC activities were performed by the CQA Monitor for all shifts during the Squaw Gulch VLF <br /> project. An office and field laboratory was used to organize data and perform necessary <br /> laboratory testing onsite. QA/QC activities performed included: monitoring all aspects of <br /> construction, inspection and approval of all project components, laboratory testing of soils and <br /> geomembrane, field testing of soils and geomembrane, documentation of construction and <br /> QA/QC activities. <br /> Daily and weekly construction progress reports were generated and submitted to CC&V and the <br /> Engineer of Record (EOR). The weekly construction progress reports are presented in Appendix <br /> F. Photographs of construction activities were taken by the CQA Monitor throughout the Squaw <br /> Gulch VLF Phase 2A. Photographs of key construction elements are presented in Appendix G. All <br /> testing and inspections were performed in accordance with the Technical Specifications <br /> presented in Appendix C. <br /> 3.1. Testing Standards <br /> The CQA Monitor completed the earthwork laboratory testing in an on-site soils laboratory to <br /> verify that all earthwork construction materials met the project Technical Specifications. <br /> Geomembrane and geotextile samples were sent to a third-party laboratory to verify that the <br /> material properties met the project technical specifications. All testing was performed in <br /> accordance with these American Society of Testing and Materials (ASTM) standards. <br /> 3.1.1. Earthworks Testing Standards <br /> Particle size analysis (ASTM C117, C136, D1140, D6913) <br /> ➢ Atterberg limits (ASTM D4318) <br /> ➢ Laboratory moisture/density relationship (ASTM D698) <br /> Moisture Content (ASTM D2216) <br /> y Flexible Wall Permeability (ASTM D5084, Method D) <br /> ➢ Density of soil in place by nuclear method (ASTM D6938) <br /> ➢ Soil Classification (ASTM D2488) <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 /> P:\Projects\Cert Report-Phase 2A Part 2\475.0106.032 CCV PHASE 2A Part 2 ROC REPORT.docx <br /> Page 7 <br />