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BOREHOLE SEALING WORK <br /> Task description: King II-seal downgradient monitoring well <br /> Site: King Coal Mine Permit Action: MT9 Permit/Job#: C1981035 <br /> PROJECT IDENTIFICATION <br /> Task#: 500 State: Colorado Abbreviation: None <br /> Date: 5/13/2025 County: La Plata Filename: C035-500 <br /> User: CCW <br /> Agency or organization name: DRMS <br /> UNIT COSTS <br /> Borehole Sealing/Item Method <br /> Description Diameter Length Quantity Unit Unit Total Cost <br /> Cost <br /> Seal Hole Granular bentonite(Bag, 4 15 10.00 bag $44.50 $445.00 <br /> material cost only...50 <br /> lb.bag) <br /> Cut Casing Exposed casing removal 4 1.05 1.05 LF $3.23 $3.39 <br /> -Calculate <br /> Circumference in Linear <br /> Feet <br /> Mark Hole Borehole 4 1 1.00 EA $46.00 $46.00 <br /> location/identification <br /> marker(EA,material <br /> cost only) <br /> Drill Rig Time GENERIC 3.0 in.- 1, 4 15 4.00 EA $35.98 $143.92 <br /> 700 ft.capy. <br /> Water Truck Time Water Tanker,2,500 4 15 4.00 EA $34.10 $136.40 <br /> Gal. <br /> Job Hours: 4.00 Total Cost: $775.00 <br />