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Cost Estimating Worksheet <br /> PUMPING WORK <br /> PROJECT IDENTIFICATION <br /> Task no.: 005 State: Colorado Permit/Job no.: M-1998-098 <br /> Date: 1010312001 County: Weld Abbreviation: none <br /> User: KAP Site: Perry Pit File name:M098-005 <br /> Agency or organization name: Colorado Division of Minerals and Geology <br /> Permit or other job action: Permit amendment AM-01 <br /> Task Description: Dewater inflows to the 58.3 acre pit area during backfilling <br /> HOURLY EQUIPMENT COST <br /> Descri tion Quantitv Data Source <br /> Pump: Centrifu loump, 4.0 inch 1 CRG <br /> Suction hose: Suction hose 4 in. diameter,25 ft. lon 2 CRG <br /> Discharge hose: Discharge hose 4 in. diameter, 50 ft. long 1 CRG <br /> Labor: Pump Operator 1 CCA/RSM <br /> Cost Breakdown: <br /> Ownership cost/hour: $3.52 <br /> Operating cost/hour: $6.72 Horsepower: 45 <br /> Operator cost/hour: $27.10 Pump Weight(UST): 0.70 <br /> Rated pump capacity: 40,000 gph/pump Pump efficiency factor: 0.9167 <br /> Actual pumping rate: 36,668 gph/pump <br /> PUMPING QUANTITIES <br /> Total pond inflow surface Unit inflow rate in Total pond inflow volume <br /> area: 33,000_sq.ft. gph/sq.ft. 0.3516 perhour: 11,603.00 gph <br /> Source of volume estimate..Inflow surface area=6600'pit perimeter, lower 5'wetted. Permeability estimated for sand and <br /> oravel aquifer w/veneer of overburden on interior of pit. <br /> BREAKDOWN PER HOUR OF COST FACTORS <br /> Job time: Estimated time to complete pit lining job is 21 weeks or 3,585 total hours that the pump must be onsite. <br /> This 3,585 hour time factor is multiplied by the pump ownership cost of$3.52/hr. <br /> Total inflow volume: 11.603 galJhr.x 3,565 hrs.=41,596,755 gallons:at the actual pump capacity of 36,668gph, <br /> the pump will operate for 1.134.4 hours over the term of the 21 week proiect. The 1.134.4 hour time factor <br /> is multiplied by the pump operating cost of$6.72/hr. <br /> Operator cost: Estimated pump operator reouirements are 2 h0day at 5 work days per week for 21 weeks, or 210 <br /> hours. This 210 hour time factor is multiplied by the Operator cost of$27.101hr. <br /> JOB TIME AND COST <br /> Pump Cost: $3.521hr.x 3,585 hrs. =$12,619,20 Unit Cost: $0,0006234 per gallon <br /> Operating Cost: $6.721hr.x 1.134.4 hrs. =$7,623.17 <br /> Operator Cost: $27.f0/hr. x 210 hrs. =$5,691.00 Total Job Cost: $25,933.37 <br />