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• foredo Division of Minerals end Geology • <br />EST IIUIT ING FORM - BULLD02ER RIPPING <br />___________________________________ <br />___________________________________ <br />Task p: 4 Prep. by: BLP Task File Neme: %219-4 <br />Date: 05/23/96 Permit q: X-96-219 Mine: Cottonwood Lard <br />Permit Action: N01 <br />Task Description: Rip Drillpads 8 Access Roads <br />HOURLY EQUIPMENT COST <br />________________ ____ Basic Machine: Cat DbH SERIES II Horsepower: 165 <br />Blade Type: SEMI-UNIVERSAL ---------- <br />Attachment q1: ROPS Cab Shift Basis: 1/day <br />Attachment p2: 3-shank ripper ---------- <br />Cost/Hr Breakdown: Utilization X (code OSIi) <br />----------------- ownership = 524.34 N/A <br />operating/overhaul - dozer = (27.33 100 <br />-ripper = 53.09 100 <br />operator = (22.95 N/A <br />Total egpt. unit cost/hr = 577.71 Total fleet cost/h r: 577.71 <br />MATERIAL gUANTITIES <br />_ _________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor N/A Volume N/A BCY <br />Area ___________ -______ _-__--_____ <br />method: 6.20 Acres Rip Depth: 1.00 Volume 10,003 BCY or CCY <br />----------- ------- ----------- <br />Source of quantity take-off: not <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <br />_________________ <br />_________________ <br />Seismic Method - Seismic velocity of material: N/A feet/sec. <br />-------------- - Unadjusted hourly production: N/A BCY or CCY/hr <br />Area Method - Avg. ripping depth per pass: 1.00 feet <br />----------- - Avg. ripping width per pass: 6.58 feet <br />- Avg. ripping length per pass: 100.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine maneuver time 0.25 minutes <br />- Hourly prod. per unit area 0.654 acres/hr <br />- Unadjusted hourly production: 1,054.72 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 1,054.72 BCY or CCY/hr <br />------------------ -Site altitude = 6,600 feet <br />- Altitude adjustment = 1.00 (Cat tbl) <br />- Job efficiency factor = 0.83 (1sh/day) <br />- Net correction = 0.83 multiplier <br />- Adjusted production = 875.42 BCY or CCY/hr <br />- Fleet production = 875.42 BCY or CCY/hr <br />JOB COST =_______ <br />Flee[ Size 1 Dozers) Total Job Time: 11.43 Hours <br />Unit Cost 50.089 /LCY Total Job Cost: 5887.91 <br />