2014-01-17_REPORT - M1980244 (3)

Home Browse Search

Cripple Creek & Victor Gold Mining Company Phase 5 Slide Repair Final Report Quality Assurance Monitoring & Test Results January 14, 2014 ameO drawings and supporting CQA monitoring and testing documentation are presented in appendices attached to this report. 1.2.1 CQA Monitoring of Earthworks AMEC provided CQC testing and CQA testing and monitoring of earthworks for the Phase 5 Slide Repair. CQA testing and monitoring of earthworks was provided for in place materials in accordance with the AMEC Earthworks CQA Plan (Section 1400.1 of the Specifications located in Appendix E). The DCF material specifications for this project are summarized in Table 1. CQC earthworks testing was provided to support the contractor during the manufacture of materials and prior to material placement. The CQC test results are not included in this report as these tests were intended to assist the contractor with materials preparation rather than record testing. All CQA testing results are included. AMEC provided CQA laboratory and field testing, and monitored earthworks construction activities as follows: • AMEC visually monitored the SLF repairs to confirm the surface was unyielding, free of organic matter or other unsuitable materials, and a continuous soil liner was maintained. • AMEC visually monitored the placement of DCF above the geomembrane in the Phase 5 slide repair area, including verification of lift thickness and grade control; identification and removal of deleterious materials; and verification that care was exercised during fill placement to avoid geomembrane damage. AMEC performed CQA laboratory testing of grain size and Atterberg limits. • AMEC monitored the ambient air temperatures and weather in accordance with project specifications. The ambient air and weather observations during fill activities are summarized in Table 2. 1.2.2 CQA/CQC Monitoring of Geomembrane Installation AMEC provided CQA monitoring of geomembrane for the Phase 5 Slide Repair which consisted of performing geomembrane inventory and checking quality control certifications prior to geosynthetics deployment. AMEC performed geosynthetics CQA activities in accordance with the Geosynthetics CQA Plan (Section 1400.2 of the 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 tests) • Third -party conformance testing of geomembrane sAprojects \1568 cc &v - ph v slide repair cqa \11.0 certification report\cc &v roc report.docx 2