2009-12-21_REVISION - M1980244 (28)

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Cripple Creek & Victor Gold Mining Company Cresson Project ame Quality Assurance Monitoring and Test Results Liner Recertification December 17, 2009 1.0 INTRODUCTION Cripple Creek & Victor Gold Mining Company (CC &V) operates the Cresson Project, located in Teller County, Colorado, near the city of Victor. The Cresson Project is a mining and ore processing and beneficiation facility that is composed of surface mines as well as a valley leach facility (VLF); an adsorption, desorption, and recovery (ADR) plant; and associated infrastructure, all of which were designed and constructed to meet or exceed the requirements established by CRS §34 -32 -101 et seq. and regulations promulgated there under by the Mined Land Reclamation Board (MLRB). The work associated with the Cresson Project is being performed under specific criteria established in Amendment Nos. 8 and 9 of Permit Number M- 1980 -244 (Permit), as approved by the MLRB. This Report documents the Construction Quality Assurance (CQA) and Construction Quality Control (CQC) services provided by AMEC Earth and Environmental (AMEC) from October 12 through November 14, 2009 for the recertification of the liner system at the Phase IVc VLF Load Out Bin (LOB) and the Phase IVa ramp. The general location for the liner system recertification is presented on Figure 1. 1.1 Project Description The existing Cresson Project was constructed in phases from 1994 through 2004 (Phases I through IV). Phases I and II were permitted in 1994 and constructed during the 1994 through 1996 construction seasons. Phase III was permitted in 1999 and construction was initiated the same year, with completion in 2000. Phase IV was permitted in 2000 and construction was completed in 2004. Phase 5 was permitted in 2008 and is currently under construction. As part of the construction activities, the Phase IVc LOB was moved from its current location to a new pad located to the north end of the VLF. The Phase IVc LOB was certified in October 2004; however a small section of the liner system (geomembrane and SLF), as identified in Figure 2 included within Appendix A of this report, was left uncertified because the thickness of DCF was considered insufficient for protection from haul truck traffic. With the relocation of the LOB, this area was uncovered, inspected, relined, and recertified as part of this project. In addition to the LOB, a portion of the haul road ramp in the Phase IVa, as identified in Figure 2 included in Appendix A of this report, was recertified. This area was originally certified in August 2002, as part of the Phase IVa construction activities. A portion of the ramp was left uncertified because the thickness of the DCF was considered insufficient for protection of the liner from haul truck traffic. The uncertified area of the ramp was uncovered, inspected, and relined as part of this project. A portion of the ramp was also reconstructed to re- establish grade in this part of the VLF. S: \PROJECTS \1125E CCV CQA \H2. DESIGN\LINER RECERTIFICATION REPORT\REPORT BODY\QA MONTIORING AND TEST RESULTS LINER RECERTIFICATION.DOC