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$4.00/gallon. This caused the fuel costs for the equipment to be very high in the latest <br />CRG and, consequently, in the latest version of CIRCES. The following table shows the <br />hourly cost changes for the equipment used in the Bowie No. 2 Mine's reclamation cost <br />estimate. <br />E ui ment New <br />Old Cost <br />Difference <br />% Increase <br /> <br />CAT 3659 Excavator $222.91 $27.46 12.3% <br />CAT 815F Com actor M $14150 $19.67 13.9% <br /> <br />er <br />CAT 14H Grad <br />$21.86 <br />20.4% <br />CAT 988G Loader $182.22 $23.27 12.8% <br />CAT 773D Truck $175.90 $152.83 $23.07 15.1% <br />CAT 627G Scra er $262.83 $204.87 $57.96 28.3% <br />ROC-D7-11 Drill $183.98 $190.02 -$6.04 -3.2% <br />5,000 Gallon Tanker $105.67 $85.34 $20.33 23.8% <br />The Division did change the size of the dozer used for many of the reclamation tasks at <br />the site from a D9R to a larger D I OR, which made the net liability increase less than it <br />would have been had the Division not switched the dozer size. This change made sense <br />based on the size of the job (over 5,200 net dozer hours) and the availability of DIOR <br />dozers. Although the hourly cost for a DIOR dozer is more than that of a D9R dozer, the <br />increase in hourly productivity offsets some of the cost increases. In other words, <br />updating the costs for tasks using a D9R dozer would have increased the liability even <br />more. The following chart illustrates this point. <br />Task D9R Old D9R Ne New <br /> <br />002 $169,852.00 $197,6 627.00 <br />009 $34,830.00 $40,5 270.00 <br />021 $39,759.00 $46,2 686.00 <br />P <br />035 $71,603.00 $83,3 492.00 <br />081 $1,930.00 $2,2 ,120.00 <br />126 $178.00 $2 198.00 <br /> <br />Total $318,152.00 $370,2 ,393.00 <br />$35 <br />In the table above, for the six tasks shown, the direct cost increase was $33,241.00. The <br />direct cost savings for the above six tasks for changing to the larger dozer, however, was <br />$18,882.00. These savings will be similar for all tasks using a dozer, including ripping <br />tasks. <br />Please let me know if you have any questions regarding the estimate or the cost increases <br />or if you need any additional information. I also have one possible adequacy question for <br />your midterm review, based on my review of the cost estimate.