2014-01-17_REPORT - M1980244 (3)

Home Browse Search

Cripple Creek & Victor Gold Mining Company Phase 5 Slide Repair Final Report ameO Quality Assurance Monitoring &Test Results January 14, 2014 5.0 GEOSYNTHETICS QUALITY CONTROL SUBMITTALS Geosynthetics quality control (QC) submittals that were reviewed by AMEC included installation personnel resumes, geomembrane resin certificates, geomembrane roll certificates, and welding rod certificates. AMEC's inventory control summarizing QC certification received for each roll of geomembrane received for the Phase 5 Slide Repair liner system is presented in Appendix 1.1. All geosynthetic material used as part of the Phase 5 Slide Repair construction met project specifications. 5.1 Installation Personnel Resumes AMEC reviewed the resumes of all ECA installation personnel to verify the installation superintendent and the seaming personnel possessed sufficient experience as required by the project technical specifications. Review of the installation personnel resumes indicated that key personnel had sufficient experience that met or exceeded project requirements. Geomembrane personnel resumes are presented in Appendix 1.2. 5.2 Geosynthetic Quality Control Documents Quality Control documents submitted by ECA included resin supplier certificates, geomembrane roll certificates, and welding rod certificates. AMEC reviewed the submittals prior to geomembrane placement and verified the documentation was complete, the material properties, and QC testing frequency required by the specifications were met. 5.2.1 Resin Quality Control Certificates LLDPE polymer raw material (resin) QC certificates were provided by the resin manufacturer, Chevron Phillips Chemical Company, at a frequency of one per rail car shipment. AMEC reviewed these certificates prior to geomembrane placement. All geomembrane used on this project was produced from the same batch of resin. The geomembrane manufacturer also performed density and melt index tests of the resin supplied by Chevron Phillips Chemical Company to verify material properties prior to geomembrane manufacture. The QC certificates provided by the resin manufacturer are presented in Appendix 1.3. 5.2.2 Roll QC Certificates ECA provided QC certificates (approximately one for every 8,855 square feet) for each roll of LLDPE geomembrane used for the project, exceeding the required minimum frequency of one per 50,000 square feet of geomembrane. AMEC reviewed the QC certificates to verify conformance of the geomembrane to the project requirements. Geomembrane was placed only when complete QC documentation was provided and sAprojects \1568 cc &v -ph v slide repair cqa \11.0 certification report\cc &v roc report. docx 9