2005-03-23_REVISION - M1994117 (2)

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MOUNT ROYALE VENTURES, LLC v~ Post Onke Box 7875 Boulder, Colorado 80308 (~1588.tibr8 March 23, 2005 Ms. Kate Pickford Environmental Protection Specialist Division of Minerals and Geology 1313 Sherman Street -Room 215 Denver, Colorado 80203 RE: Technical Revision No. OB Gold Hil~ill (NERD Permit No. M-947) Dear Ms. Pickford: 'jT2-fa/ RECEIVED MAR 2 32005 `~ Dlsirion ~f Miaerats and Geology Mount Royale Ventures, LLC ("MRV') proposes the following minor modifications to facilities that may have a material effect on the existing Gold Hill Mill Permit No. M-g4- 117. Through this transmittal, MRV is requesting MLRD review and issuance of an authorization to proceed with the implementation of the following indicated actions, subject to MLRD concurrence and MRV coMormance with applicable building codes and permit requirements. 1) Modular Field Afftce MRV plans to install a modular office structure at a location adjacent and parallel to the northwest side of the mill structure (see attached Figure 1). The proposed structure is a 10'x44' self-contained mobile office trailer that will be utilized as an onsite field office for mine management personnel. The unit is comprised of office space onty and there are no internally plumbed facilities, thus there will be no directly associated sandary facilities connected thereto (existing sanitary facilities located elsewhere onsite will be utilized). ElecUical service will be supplied via an extension from the mils building, consistent with Boulder Counfy permit requirements and codes, as applicable. The unit will be painted a IigM green and grey color to minimize visual impact. 2) Fuel Storage Facility MRV plans to construct a fuel storage facility at a location approximately 125 feet west of the mill structure along the Korth side of the mine service road (see attached Figure 1). The proposed structure wiU consist of a single 2- compartinent (250 gallons per compartment) Con-Vault °armor cast° (or equivalent) fuel containment system. This sytem employs a concrete encasement shell around a steel primary tank that affords overtill spilt protection