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Page 6 <br />5. Stormwater Quality Controls - This section will address areas <br />listed in Section 2 that are not part of our existing <br />permitted industrial wastewater discharges, specifically the <br />areas of alternate sediment control and the areas not covered <br />by DMG. _ <br />a. SWMP Administrator - the mine Environmental Coordinator <br />b. Risk Identification and Assessment <br />Overland Conveyors - The overland conveyor is covered and <br />the transfer points are enclosed in buildings. This <br />protection for the coal eliminates contact with <br />stormwater in this ares and reduces the potential for <br />wind blown dust. Some spillage occurs under the belt but <br />little of the material is fine enough to be suspended in <br />the stormwater and coal in general has a low potential <br />toxicity. Service roads along the belts and the haul <br />road across one of the areas have the potential for <br />contributing dust. The service roads have light traffic <br />and generate little dust. The haul road is well <br />graveled, watered frequently and magnesium chloride road <br />binder is usually applied in the spring and fall. The <br />road binder has some potential for adding salts to <br />stormwater. Most of the area identified as affected by <br />the overland conveyors is well vegetated, the exceptions <br />being the roadways and a strip of ground no more than 10 <br />feet on both side of the overland conveyor. Brush along <br />the conveyor is cut or sprayed as necessary to minimize <br />the potential fire hazard. A berm is in place between <br />these disturbance areas and the river for total <br />containment of stormwater runoff. <br />Powder and Cap Magazine - The magazines are small <br />concrete structures with steel doors which prevent <br />stormwater contact with the explosives. The access to <br />the site is heavily graveled and seldom used which <br />greatly reduces the potential for sediment contamination <br />of the stormwater. <br />Railroad embankment adjacent to the loadout structure - <br />This area has had a history of accumulating wind blown <br />coal dust from our train loading operations, as a result <br />DMG required that sediment control be implemented for <br />this area. A berm was installed around the area. The <br />berm covers a small area and will contain the stormwater <br />and will allow evaporation or infiltration. The runoff <br />may contact coal dust which has a low potential toxicity. <br />No. 2 West Portals - This area, shown on Map B, was <br />designed with minimal disturbance to establish access to <br />the RSS for air and power. It was not designed for men <br />or material access at this time. A berm was installed in <br />