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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 /> 3.3. Geosynthetics Quality Control Submittals <br /> The CQA Monitor reviewed and approved all geosynthetic QC submittals, including <br /> geomembrane installation personnel resumes,geomembrane roll QC certificates,geomembrane <br /> resin QC certificates,welding rod QC certificates,and geotextile QC certificates.The CQA Monitor <br /> tracked all geomembrane delivered to site in the site inventory. The site inventory, for all <br /> geomembrane used within the Phase 2A Part 2 area, is presented in Appendix 1.1. <br /> 3.3.1. Geomembrane Installation Personnel Resumes <br /> Tetra Tech submitted the resumes of all installation personnel prior to construction or <br /> repair activities within the Squaw Gulch VLF Phase 2A Part 2 area. The CQA Monitor <br /> verified that the Installation Superintendent, Master Seamer and QC Inspector possessed <br /> the installation experience required by the project Technical Specifications. <br /> Geomembrane installation personnel resumes for all crews that performed work on the <br /> Squaw Gulch VLF Phase 2A Part 2 area are presented in Appendix 1.2. <br /> 3.3.2. Geomembrane Roll QC Certificates <br /> The Squaw Gulch VLF Phase 2A Part 2 geomembrane was manufactured by AGRU <br /> America. Manufacturing Roll QC certificates were submitted for every roll of <br /> geomembrane (approximately one every 9,000 square feet), exceeding the required <br /> minimum frequency of one per 50,000 square feet of geomembrane. The roll QC <br /> certificates were reviewed by the CQA Monitor, ensuring all geomembrane materials met <br /> or exceeded the project Technical Specifications. The roll QC certificates for all <br /> geomembrane used within the Phase 2A Part 2 area are presented in Appendix 1.3. <br /> Geomembrane roll QC Certificates were provided for all 40 mil and 80 mil rolls installed <br /> within Phase 2A Part 2. <br /> 3.3.3. Geomembrane Resin QC Certificates <br /> AGRU America manufactured the geomembrane for the Squaw Gulch Phase 2A Part 2 VLF <br /> by using LLDPE polymer raw material (resin). Chevron Phillips Chemical Company <br /> provided resin QC certificates at a rate of one per rail car shipment. The resin QC <br /> certificates were reviewed by the CQA Monitor, ensuring all materials met or exceeded <br /> the project Technical Specifications. It is important to note that the Oven-Aging, UV- <br /> Aging, 2% Secant and Multi-Axial Tensile testing is considered formulation testing and is <br /> only completed when a resin formula has changed to ensure that the resin/additive <br /> formula is adequate.The resin QC certificates for all geomembrane used within the Phase <br /> 2A Part 2 area are presented in Appendix 1.4. <br /> P:\Projects\Cert Report-Phase 2A Part 2\475.0106.032 CCV PHASE 2A Part 2 ROC REPORT.docx <br /> Page 10 <br />