2014-02-07_REPORT - M1980244 (3)

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Cripple Creek & Victor Gold Mining Company PSES Pipe Rack Liner Extension Final Report Quality Assurance Monitoring & Test Results February 4, 2014 performed geosynthetics CQA activities in accordance with the Geosynthetics CQA Plan (Section 1400.2 of the Technical Specifications located in Appendix E). Geosynthetics CQA activities included: • Observation and documentation of geomembrane deployment, trial seams, seaming, destructive testing, and non - destructive testing (pressure tests and vacuum box tests) • Observation of GCL placement to ensure adequate panel overlap • Third -party conformance testing of geomembrane • Measured geomembrane panel thickness and confirming adequate panel overlap • Visually inspected geomembrane sheet quality, sheet grinding, seam alignment, and continuity • Retained archive samples of geomembrane destructive tests 1.3 Project Coordination CQC and CQA activities were directed by the AMEC Project Resident. The Project Resident (CQA Supervisor) for the construction of the PSES Pipe Rack Liner Extension from September 2013 through November 2013 was Mr. Thorne M. Clark. The Certifying Engineer and Project Manager, Mr. Michael E. Nelson, PE, made periodic site visits to resolve technical issues and to review AMEC activities. Appendix C presents a summary of the AMEC staff on site between September 2013 and November 2013. Representatives of CC &V, Ames, ECA, and AMEC conducted pre- construction, daily, and weekly coordination meetings throughout the construction period. 1.3.1 Daily Construction Summary Reports AMEC prepared daily construction summary reports (Appendix D) that detail the activities performed as well as any quality control activities performed on -site for each day of the construction process. Photographic documentation (Appendix B) was also kept throughout the project to document key elements of construction and the CQA activities that occurred. 1.4 Project Specifications All work was performed in accordance with the design plans and specifications presented in Amendment No. 9 to Mining Permit No. M- 1980 -244 and subsequent revisions, as approved the Colorado Division of Reclamation, Mining and Safety (DBMS). Issued for Construction (IFC) Drawings relevant to the current construction 3