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in place until needed for re-topsoiling. It is estimated that 72,700 cubic yards (CY) of topsoil will <br /> be required for final reclamation. It is estimated that 117,600 CY of topsoil will be stripped from <br /> the site during mining; therefore, the Operators anticipate that no topsoil will need to be imported <br /> for reclamation. This topsoil stockpile will be seeded to reduce soil erosion if left in place for <br /> more than one growing season. <br /> All earthmoving will be done by mining equipment suitable for this type operation including: a <br /> front end loader, a dozer, an excavator, a dredge, and haul trucks of various sizes and capacity. A <br /> dredge will only be used once a substitute water supply plan and augmentation plan are secured <br /> prior to mining below the groundwater surface. <br /> The proposed mining direction is from roughly northwest to southeast in the sequence shown on <br /> Map C-2. The area disturbed will not exceed 15 acres at any time including haul roads and <br /> processing areas. <br /> An approximate timetable to describe the mining operation is shown on Table D-1. The life of <br /> this mine may vary depending on market conditions that affect product sales but is estimated at <br /> approximately 25 years. This mine will be a year-round operation with regard to loading and <br /> selling of previously stockpiled materials and the manufacturing of asphalt and concrete. <br /> However, it is anticipated that extended pauses of mining and processing operations will take <br /> place as market demands fluctuate. <br /> It is proposed a floating bond be used on 15 acres of the operation as mining is completed in <br /> progressing mining units, see Map C-2. The Operator estimates that roughly two years will be <br /> required to establish reclaimed areas back to rangeland after the cessation of mining in each area <br /> to be considered for release by the Mined Land Reclamation Board of the Division of <br /> Reclamation, Mining, and Safety. Reclamation is an ongoing process and will begin as soon as <br /> the first unit is deemed to have enough land area ready for reclamation to start. The sequence of <br /> mining and reclamation will follow a natural progression; timing is critical and final reclamation <br /> without an extended delay is the ultimate goal. <br /> The area of mining and disturbed land will range between 5 to 15 acres with a maximum of 15 <br /> acres disturbed at any time. A maximum of 1000 feet of active highwall will be allowed at any <br /> Birdseye Pit , <br /> t,r Lrwic6i and♦suoate+,t'I 1[ <br /> June 2019 D-2 <br />