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�i <br /> OURAYSILVER MevEs <br /> Good Housekeeping <br /> The following good housekeeping practices are employed at the site: <br /> Substances stored on-site are stored in a neat, orderly manner in their appropriate <br /> containers. <br /> • Open containers of non-hazardous materials shall be stored under a roof or other <br /> enclosure to prevent mixing with stormwater. <br /> • The Environmental Specialist is responsible for day-to-day site operations and directing <br /> spill prevention, cleanup, and reporting. <br /> Used oil will be stored within a designated above ground storage tank or in covered <br /> areas to prevent mixing of stormwater and oil. Ouray Silver Mines Inc. will encourage <br /> proper waste disposal practices. <br /> • If drip pans are used, they will be cleaned on a regular basis and not allowed to fill with <br /> stormwater. <br /> Spill prevention and response procedures <br /> Spills on the Revenue site are most likely to happen at the 10,000 gallon tank (Cl) or at the <br /> Fluid Storage Connex or at a piece of equipment during maintenance. Containers are kept on <br /> secondary containment with at least 110% of the largest full tank capacity. Details on the spill <br /> prevention and spill cleanup procedures can be found in the SPCC plan kept on site. A spill kit <br /> will be kept on site near each of the area that hydrocarbons and reagent chemicals are stored <br /> in order to facilitate cleanup in case of a spill. <br /> Employee education <br /> Ouray Silver Mines Inc., through the Safety Coordinator, provides annual stormwater <br /> awareness training during Annual Refresher Training (ART), which is designed to educate <br /> current and new employees on appropriate stormwater management, spill response, good <br /> housekeeping and materials storage practices. Best management practice training programs <br /> should also be conducted regarding improving the water quality of stormwater runoff. <br /> Training documentation are maintained by the Environmental Department will be kept in a <br /> central location. <br /> Identification of discharges other than stormwater <br /> There are two permitted non-stormwater discharge points on site, which allow for mine water <br /> emanating from the Revenue portal to be discharged after treatment. Water that enters the <br /> mine water pond will deposit sediment prior to being discharged. Applicable discharge water <br /> standards are tested for and determined by the CDPHE WQCD. <br /> Stormwater Management Plan 11 I P a g e <br />