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azea, the scale, office, pro~;ing area and batch plants. The existirl~urch buildings and roads <br />will be utilized somewhat during mining and will remain after reclamation of the site. <br />Stormwater runoff will flow across the site toward the excavated pit or the detention ponds <br />within the processing area that will act as settling basins for suspended solids. The excavations <br />will retain runoff from small storm events on-site. <br />Some channelization may need to be added during future mining phases in order to continue <br />collecting all runoff in the mining excavations. The stormwater conveyance improvements will <br />be described in future annual SWMP reports if they are constructed. <br />This site is not located in the floodway nor the floodplain of the Blue River. No problems <br />associated with sediment transport through the floodplain aze expected to occur. Flood <br />elevations in this azea are not expected to be impacted by this operation. <br />Equipment used for the extraction of the aggregates will be stored in the pit areas. Equipment <br />used for the hauling and processing of the aggregate will be stored on-site, near the shop area. <br />Daily equipment monitoring and maintenance will occur on-site. Repair and overhaul activities <br />will be performed in the shop azea. <br />3.0 Potential Pollutant Sources/Material Inventory <br />Potential pollutants expected to be stored on-site would include but not be limited to, diesel fuel, <br />gasoline and small amounts of miscellaneous equipment fluids and oils. There will be one diesel <br />fuel tank with the capacity for 12,000 gallons of on-highway diesel fuel. An 8,000 gallon tank <br />will store diesel fuel for off-highway use. A 2,000 gallon tank will be used for the storage of <br />gasoline. All these tanks will be above ground. Flocculants will also be used at this site. Three <br />generators will be used to power equipment. Each generator will have one fuel tank of 1,000 <br />gallon capacity for off-highway diesel fuel. These tanks will be stored in either the shipping <br />container or within an earthen berm. <br />One waste oil tank will be located neaz the shop area. This tank will have a 500 gallon capacity <br />and will be pumped empty by a licensed oil recycling firm on a regular basis. A maximum of <br />300 gallons of hydrochloric acid will also be stored outside in an earthen berm neaz the shop <br />area. <br />One main parking azea for employee vehicles will be located near the office and shop. This azea <br />will be paved. A sepazate mining equipment storage area will be located at [he northwest corner <br />of the processing area. This area will be graveled. <br />Haul routes within the site will be grave] or dirt, depending on their location, and can be <br />expected to be a source of potential pollution to stormwater runoff Access roads into the site <br />will be paved for a minimum of 300 feet. <br />Components of the asphalt batch plant will consist of approximately 10,000 gallons of emulsified <br />asphalt, approximately 25,000 gallons of ac cement and approximately 10,000 gallons of burner <br />fuel to operate the plant. Waste asphalt will also be used (recycled) at this plant. Waste oils <br />from the mining equipment at the site may be recycled and used in the production of asphalt. <br />