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Cross Gold Mine <br />December 2024 U-10 <br /> <br /> <br /> <br />10. Facilities Evaluation <br />Map C-2 shows the general arrangement of facilities, the storage locations for chemicals and fuel, and <br />the general size of the operation. <br />All EPFs are governed by the Emergency Response Plan and the Materials Containment Plan for the <br />operation. Below is a discussion of the efficacy of each individual EPF at Cross Gold Mine and <br />necessary specifics. Additional information can be found in Exhibits D and G and earlier in this Exhibit. <br />Table U-1 lists all EPFs and identifies the location of designs and further discussion. <br />Prior to production of ore from the mine, each EPF will be built or refurbished as needed to meet MSHA <br />standards and to function effectively as an EPF. All EPFs will be built or refurbished in the following <br />manner: <br />1) Designs for the EPF will be developed. <br />2) A technical revision will be submitted to CDRMS containing the designs and a construction plan. <br />3) The construction plan will contain a detailed schedule of construction, inspection stages, and <br />QA/QC checks. <br />4) Upon successful construction, a Colorado registered professional engineer will certify the EPF <br />and certify an as-built that will be submitted to CDRMS. <br />5) Upon CDRMS approval of the professional engineer certification and as-built, the EPF will be <br />considered active. The as-built will document any changes to the approved design and <br />demonstrate that said changes will not hinder the efficacy of the EPF. <br />No mining will take place at Cross Gold Mine until all EPFs are certified with CDRMS and a Colorado <br />registered professional engineer. <br /> <br />Chemical storage within the mill building will effectively contain all designated chemicals. Volume <br />comparisons and capacity demonstrations will be provided with the full mill design with a technical <br />revision. <br />There are no geological or geochemical conditions that the operation of the chemical storage will affect <br />or that will affect its efficacy as an EPF. <br /> <br />Surface water control measures at the Cross Gold Mine will effectively either reroute water from <br />undisturbed areas around the site or collect and store disturbed area runoff within appropriate detention <br />structures to facilitate evaporation. <br />There are no geological or geochemical conditions that the operation of the surface water control <br />measures will affect or that will affect its efficacy as an EPF.