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COR-040000 Stormwater Management Plan <br />Potential Pollutant Sources and Best Management Practices <br />E <br /> <br /> <br />?. c <br />„ ?"? ?. ,;:: ? ?foentialP?jlutant _,-.. °Hes1i?INana ermen ;P„r?aclicre' <br />Loading and unloading operations Dust, sediment, heavy Water or other suppressants will be used as <br />associated with ore and metals, oil, and fuel necessary to minimize dust at the site. Earth/rock <br />development rock, equipment, berms, waterbars, temporary seeding, soil ripping, <br />materials, oil, and fuel. and other BMPs will be used to control sediment <br />The ore and development rock is and heavy metal runoff from the ore piles around <br />hauled from the shaft or portal these activities. <br />area and stockpiled on the mine Employees filling storage tanks are trained on <br />site with heavy equipment. The proper fueling procedures. A spill kit is provided <br />ore is also loaded and transported at each site location with fuel. <br />off the mine sites with heavy <br />equipment. <br />Outdoor storage of chemicals or Oil and fuel Tanks storing gasoline and diesel fuel have <br />equipment associated with ore and secondary containment with drain valves that are <br />development rock, equipment, oil, kept closed. Tanks are visually inspected <br />and fuel. regularly, and when filling the tanks. Where <br />Engine and/or hydraulic oils and possible, products will be stored in an enclosed <br />greases may be stored on-site for area not exposed to stormwater. Employees <br />use in vehicles and equipment at fueling vehicles and equipment from these tanks <br />the mine sites. are trained on proper fueling procedures. A spill <br /> kit is provided at each site location with oil <br /> storage. <br />Outdoor milling or processing None; No outdoor N/A <br />activities. manufacturing or <br /> processing activities <br /> will occur at the sites. <br /> Ore is stockpiled and <br /> hauled offsite for <br /> processing at a mill <br /> near Blanding, Utah <br />Significant dust or particulate Dust, sediment, Water or other suppressants, such as magnesium <br />generating processes during earth- magnesium chloride chloride and calcium chloride will be used as <br />disturbing activities such as and calcium chloride necessary to minimize dust at the site. Earth/rock <br />stockpiling ore and development berms, waterbars, temporary seeding, soil ripping, <br />rock; removing ore and and other BMPs will be used to control sediment <br />development rock from the site; around these activities. <br />moving vehicles and/or equipment <br />on disturbed areas. <br />On-site waste handling practices. Oil and worker trash Containers storing used oil have appropriate <br /> secondary containment or are stored in an enclosed <br /> area not exposed to stormwater. Containers are <br /> visually inspected regularly. A spill kit is provided <br /> at each site location with used oil storage. <br /> Employees are trained on proper maintenance and <br /> cleanup procedures. Employees are also trained <br /> on good housekeeping procedures for proper trash <br /> collection. Trash will be collected in containers <br /> and hauled off site by a licensed contractor. <br />Van 4 Shaft SWMP 6 Denison Mines (USA) Corp.