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Colorado Division of Minerals and Geology <br /> ---------------------------------- <br /> ESTIMATING FORM - SEALING BOREHOLES <br /> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA <br /> Task #: 154 Prep. by: SLB Task Filename : C017-154 <br /> Date: 20-Mar-95 Permit #:C-81-017 Mine: Coal Basin Mines <br /> Permit Action: N/A <br /> ------------------------------------------------------------------------- <br /> Task Description: Seal and Plug Monitoring Wells <br /> UNIT COSTS <br /> Drill Water Flatbed Pickup Dozer <br /> Mobile Equipment: Rig Truck Truck Truck (Cat D7H) Last update: 1991 <br /> Ownership Cost/hr = 544.18 $8.63 $6.70 $2.32 $35.68 <br /> Operating Cost/hr = 538.55 $7.55 $7.53 $5.47 $31.52 <br /> Operator Cost/hr = $21.58 $20.84 $20.84 521.58 $21.58 <br /> Assistant Cost/hr = $20.69 $0.00 $0.00 $0.00 SO.00 <br /> ----------------------------------------------------------------------------------------------------- <br /> Total = $125.00 $37.02 $35.07 $29.37 $88.78 <br /> ------- ------- ------- ------- ------- <br /> Materials & Supplies: Description S/unit unit cf/unit <br /> Portland Type II Cement 59.00 90# sack 3.00 <br /> Dry Granular Bentonite $6.00 100# sack 3.00 <br /> Surgel Abandonment Fluid $6.00 100# sack 3.00 <br /> Octo Plug $4.35 each NA <br /> Marker $2.00 each NA <br /> ------------------------------------------------------------------------------ <br /> ITEMIZED TASK BREAKDOWN AND ASSOCIATED COSTS <br /> -------------------------------------------- <br /> -------------------------------------------- <br /> BOREHOLE OR PROJECT I.D.: 6, 9, GE-1, GS-1, GW-1, AT-2A, AT-2b, 11 <br /> __..............----------------------------------------------------------_-»-_--._--- <br /> Total Number of Holes: 8 No. Plugs/Hole: 1 Avg. unit volume (cf/lf): 0.1963 <br /> Av. Depth per Hole (ft.): 100.00 Plug Ht. (ft.): 7 Tot. cem. plug vol. (cf): 11.00 <br /> Av. Diam. per Hole (in.): 6.00 Type of Casing: PVC Remaining fill vol. (cf): 146.08 <br /> Task Item Task Description Quantity Unit $/Unit Cost <br /> -------------------------------------------------------------------------------------------------------- <br /> Drill Rig Seal Holes with Bentonite 16.00 hour $125.00 $2,000.00 <br /> Water Truck Used with Bentonite and Cement 16.00 hour $37.02 $592.32 <br /> Flatbed Truck Haul Materials 16.00 hour $35.07 $561.12 <br /> Pickup Truck Haul Crew 16.00 hour $29.37 $469.92 <br /> Dozer Reclaim Small Pds 16.00 hour $88.78 $1,420.48 <br /> Cement Plug Holes 3.67 sack $9.00 $32.99 <br /> Bentonite * Seal Holes 45.03 sack $6.00 $270.18 <br /> Surgel * <br /> Octo-plug Plug 8.00 ea. 54.35 $34.80 <br /> Marker Mark Holes 8.00 ea. $2.00 $16.00 <br /> Miscellaneous <br /> -------------------------------------------------------------------------------------------------------- <br /> -------------------------------------------------------------------------------------------------------- <br /> * Select either bentonite or surgel; not both. TOTAL DIRECT COST $5,397.80 <br /> sheet 1 of 1 <br />