2014-02-07_REPORT - M1980244 (3)

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Cripple Creek & Victor Gold Mining Company PSES Pipe Rack Liner Extension Final Report Quality uality Assurance Monitoring &Test Results February 4, 2014 1.0 INTRODUCTION The Cripple Creek & Victor Gold Mining Company (CC &V) currently operates the Cresson Project, located in Teller County, Colorado, near the city of Victor on Colorado State Highway 67. CC &V is owned and managed by AngloGold Ashanti (Colorado) Corp. (Anglogold Ashanti). The Cresson Project is a mining and ore processing facility which is comprised of surface mines, crushers, a lined Valley Leach Facility (VLF), gold recovery plant, and associated infrastructure, all of which were designed and constructed to meet or exceed the requirements established by C.R.S. §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 No. 9 of Permit No. 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 Environment & Infrastructure, Inc. (AMEC) from September 2013 through November 2013 for the Process Solution Enhancement System (PSES) Pipe Rack Liner Extension, which is defined in Section 1.6. The general site location is presented on Figure 1, and the certification boundary is presented on Figure 2 under the Figures section of this report. 1.1 Project Description The initial Cresson Project was designed in 1993 and constructed in phases since 1994 under Amendment Nos. 6, 7, 8, and 9 to Mining Permit No. M- 1980 -244. This certification report addresses the addition of approximately 9,690 square feet plan area of a portion of the earthen and synthetically lined area north of CC &V's lab facility. This area is referred to as the PSES Pipe Rack Liner Extension Project, and was designed to meet the criteria presented and approved in Amendment No. 9. Ames Construction, Inc. (Ames) of Aurora, Colorado, was the earthworks contractor for the PSES Pipe Rack Liner Extension. Ames performed construction activities for the Project from September 2013 through November 2013. Agru America of Georgetown, South Carolina manufactured the geomembrane used to construct the PSES Pipe Rack Liner Extension. GSE of Houston, Texas manufactured the geosynthetic clay liner (GCL) and loose bentonite clay used to construct the PSES Pipe Rack Liner Extension. ECApplications, Inc. (ECA) of Orange, California completed the installation of the geosynthetic liner system in October 2013. Messrs. Ron Roberts and Scott Redabaugh represented CC &V as the Construction Manager and Construction Superintendent respectively during the course of the work. All quantities and testing frequencies presented in this report are current as of November 15, 2013, which represents completion of the PSES Pipe Rack Liner Extension, as detailed in this report.