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STORMWATER MANAGEMENT PLAN <br /> NEWMONT <br /> CRIPPLE CREEK AND •' GOLD MINING COMPANY <br /> management system that includes two channels and a sediment trap. The Midway Fuel Farm has <br /> an oil/water separator system in place that captures any spilled fuel within the refueling area Since <br /> the Midway Fuel Farm is a heavily used area during operation of the mine it is routinely inspected <br /> by operators and mine personnel.)\ Therefore, the risk of a spill becoming released to the <br /> environment or off-site waterways is negligible. <br /> • The HGM facilities, as described above, are constructed within a double composite-lined area of <br /> the Squaw Gulch OSA. Most chemical storage, use, and handling occurs within the concrete <br /> foundations and curbing of the HGM, which provides further containment of process reagents. The <br /> HGM liner is tied to the VLF liner system, providing full containment of the outdoor HGM area. <br /> Chemical releases to stormwater or the environment are, therefore, unlikely to occur. <br /> Maintenance facilities for Mine Operations (Ironclad Maintenance Facility), as well as for the Process <br /> Operations are isolated in the interior of the Site so that the only stormwater reaching these areas is the <br /> rainfall that directly falls within the facility boundaries; there is no stormwater runoff since the process areas <br /> are zero-discharge facilities. <br /> Explosives magazines, silos, and the bulk emulsion facility are isolated from stormwater through location <br /> and/or the use of berms and channels. <br /> 4.3.2 Materials Handling and Spill Prevention <br /> Spill kits, labeled containers with absorbent materials and other tools and supplies for responding to spill <br /> and releases, are located throughout the site wherever the storage, use, or transfer of chemicals may occur <br /> If there is an incident, quick response and cleanup is standard procedure to prevent mixing of chemicals <br /> with stormwater. <br /> Bulk loading and unloading of petroleum products is accomplished in areas with engineered drainage <br /> control. Loading and unloading is attended by the truck driver, providing for a rapid response in the event <br /> of an incident. The Ironclad Maintenance Facility and the Light Vehicle Maintenance Facility have indoor <br /> storage for all lubricating fluids, used oil, new and used antifreeze, and small amounts of diesel fuel and <br /> kerosene. The Truck Wash Facility and the wash facility at the Ironclad Maintenance/Warehouse Facility <br /> are enclosed and equipped with a water recirculation system including a settling basin for solids, a skimmer <br /> for hydrocarbons, and a small water treatment unit (also known as the STW3 Unit). The Ironclad <br /> Maintenance/Warehouse Facility and Truck Shop are located at the drainage divide between the tributaries <br /> to Cripple Creek and Grassy Valley. Therefore, run-on diversions are not necessary. <br />