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Mine Area Seneca 11 - Wadge Pit <br />Project Highwall Reduction <br />Task Drill B Shoot Highwall <br />WORKSHEET N0. WA-3 <br />Oi HER RECLAMATION ACTIVITY COSTS <br />Descriptions of Reclamation Activity: Blasting to reduce hi5hwall <br />Assumptions: <br />Sources: <br />Powder Factor = 0.63 lb/yd Seneca costs for 7992 <br />Hole Diameter = 70-5/8 inches Furnished try applicant <br />Drill = Reed SK 60 Contractor's Equip. Cost Cuide Ra[e for <br />Drilling Rate = 2 ft/mi 1992 <br />Bit Life = 8000 ft. Furnished by applicant <br />Bit Cost = E7,500/bit Furnish eci by applicant <br />Explosives = 50.15/lb Seneca costs for 1992 <br />Drilling Cost = E230.37/hr Contractors Equip. Cost Guide <br />References: Data quest, Contractors Eq uipment Cost Guide <br />U.S. Department of Labor, Davis-Bacon wage Rat e:_ <br /> <br />