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Dimensions: Left Side Slope 1.00:1 <br />Right Side Slope 1.00:1 <br />Wetted Perimeter: 5.07 <br />Area of Wetted Cross Section: 3.21 <br />Mannings coefficient,n: 0.0395 (12" riprap) <br />Bed Slopes (%):.50.000 <br />Discharge: 63.00 cfs <br />Depth of Flow: 1.79 feet <br />Velocity: 19.62 fps <br />Channel Lining: Grouted 12 inch Rock Rip-Rap <br />Freeboard: 0.31 feet <br />Valley Fill Area #2 <br />Valley Fill Area # 2 will utilize the same Grass Lined and Rip-Rap Lined channel designs as Valley <br />Fill Area # 1. The grass tined channel will be used along the top of the bench. The grouted rip-rap <br />channel will be placed on the highwall cut area to transition the flow to the bench and along the slope <br />ofthe valley fill material. Boulder energy dissipaters will be used at the end ofthe fill slope channel. <br />The channel locations can be seen on Map 3. The various channel designs can be seen on Map 4. <br />5. Mine Facilities and Operation <br />The site will consist of a portable crushing and screening plant, portable stacker conveyors, and a <br />portable asphalt plant. The plant will have its own generators and portable #2 diesel tank of 4000 <br />gallon size. This tank will have its own secondary containment built under the steel tank. The <br />crush/screen plant will be brought to the site fora 18-26 weeks intermittently throughout the year. The <br />screened material will then be sold throughout the year. <br />The site will have a hot mix asphalt plant. The plant will have its own portable tank for asphalt cement <br />as well as #2 diesel for the generator. These tanks are estimated at 23,000 gallons of asphalt cement <br />and 500 gallons of#2 diesel each. Both ofthese tanks will also have secondary containmentwithin the <br />plant. An liquid propane tank of 17,000 gallons will also be used to heat the material. No concrete <br />plant is planned for this site. <br />Due to the high production rates a fuel farm will be needed for the site. The fuel farm will have <br />secondary containment for all tanks housed within the farm. The expected tanks will be two 10,000 <br />gallon tanks of diesel and approximately two 500 gallon tanks of gas or other fuels. <br />The site will have a truck scale, quality control lab trailer, and a scale shack. No outdoor lighting and <br />no other structures are planned. Portable toilets will be used for employees. No night activity is <br />scheduled for the operation. All structures on site are shown on Map 3. These are relative locations <br />and may move within the Staging Area. The portable mining equipment such as loaders, dozers, trucks <br />and excavators will beserviced on an as-needed basis from a portable service truck making short visits <br />to the site. Upon reclamation, all equipment will be removed from the site. <br />Cugnini 12/03 9 <br />