Laserfiche WebLink
We, ITASCK <br /> Denver, Inc. <br /> 1.0 INTRODUCTION <br /> Itasca Denver, Inc. (Itasca) has developed and conducted a Waste-Rock Characterization Study <br /> (WRCS)on behalf of Cripple Creek and Victor Gold Mine(CC&V)to characterize the geochemistry <br /> of waste rock associated with life-of-mine and approved Amendment 11 activities at the Cripple <br /> Creek and Victor Project (the Project). The objectives of the WRCS were as follows: <br /> • To identify the types of waste rock anticipated to be encountered by the Project; <br /> • To transmit geochemical data that describe the Project waste rock; and <br /> • To generate a dataset that can be used to assess potential environmental impacts associated <br /> with Project waste rock and to inform future material-handling plans at the Project to <br /> minimize potential impacts. <br /> In September 2017, Itasca submitted to CC&V a characterization plan detailing the objectives <br /> and testing approach for the study (Itasca 2017). The study was divided into two phases. The <br /> Phase I testing consisted of the following tests: <br /> • Static acid-base accounting(ABA)testing via the Nevada Modified Sobek method to evaluate <br /> the overall potential for acid generation, and <br /> • Mineralogical analysis by X-ray diffraction (XRD) to quantify the minerals present in the <br /> samples. <br /> The Phase I testing results were used as a basis,together with the existing characterization data, <br /> for the selection of samples for comprehensive static and kinetic characterization testing, which <br /> was conducted as Phase II. The results and interpretations of Phase I testing, as well as <br /> recommendations for Phase II sample selection, were compiled into a technical memorandum <br /> and transmitted to CC&V (Itasca 2018). The Phase I results are also presented in this report for <br /> completeness.The Phase II testing consisted of the following tests, listed with a brief description <br /> of their purpose: <br /> 1 <br />