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CashMineNon-DMOCertification AdrianBrown 1. INTRODUCTION Mount Royale Ventures, LLC ("MRV") holds Division of Reclamation, Mining and Safety, Colorado ' Department of Natural Resources Permit M-1983-141 for the mining of the Cash Mine, Boulder County, Colorado. The permit requires determination of whether the project is a Designated Mining Operation under Section 34-32-112.5, C.R.S. Section 34-32-1125 (2) C,R.S. states that; "If an operator demonstrates to the board at the time of applying for a permit or at a subsequent ' hearing that toxic or acidic chemicals are not stored or used on-site and that acid- or toxic producing materials will not be used, stored, or disturbed in quantities sufficient to adversely affect any person, ' any property, or the environment, the board shall exempt such operations whether conducted pursuant to section 34-32-110 or otherwise." This report provides a demonstration that toxic or acidic chemicals are not stored or used at the Cash ' Mine, and that acid- or toxic-producing materials will not be used, stored, or disturbed in quantities sufficient to adversely affect any person, any property, or the environment. 2. SETTING 2.1 Location The Cash Mine is a small underground gold mine located in Section 12 Township IN Range 72W 6th Principal Meridian, at a surface elevation of approximately 8,000 feet msl on the flank of a steep ridge ~ neaz Gold Hill, Colorado. The mine location and the surrounding area aze shown in Plate 1. 2.2 Geology The geology in the vicinity of the Cash Mine comprises a shallow mantle of soil (typically a few feet or less thick) overlying Precambrian Boulder Granodiorite, which is described as "grey, pinkish gray to black and white medium-gained to very coarse grained locally porphyritic rock composed of microcline, plagioclase, and quartz, and lesser amounts of biotite and hornblende" Gable (1980)'. The gold ore is contained in quartz veins and other local intrusives located along faults and major fissures in the country rock. 2.3 Structure The rock fabric in the vicinity of the Cash Mine is shown in Plate 2z. The district has a significant number of large veins and faults, frequently oriented approximately NE-SW, and crossing structure ' Gable, D.J., 1980. "Geologic Map of the Gold Hi[1 Quadrangle, Boulder County, Colorado", Deparhnent of Interior, United States Geologic Survey, Geologic Quadrangle Map CQ-1525, 1980. ~ Covering, T., Goddard, E.N., 1950. "Geology and Ore Deposits of the Front Range of Colorado", United States Geological Survey Professional Paper 223, USGPO, Washington. 1601A-20061210 1