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Three fine refuse slurry wells will be drilled. They will be 9 inch diameter open hole about 450 <br />deep to intersect the Allen Seam. A 6.625 inch inside diameter casing will be cemented into <br />each hole. <br />BOREHOLE SEALING WORK <br />Task description: Seal and Abondon Three Refuse Slurry Wells <br />Site: New Elk Mine Permit Action: MR95 Permit/Job#: C1981012 <br />PROJECT IDENTIFICATION <br />Task #: 95B State: Colorado Abbreviation: None <br />Date: 9/8/2011 County: Las Animas Filename: C012 -95b <br />User. JDM <br />Agency or organization name: DRMS <br />UNIT COSTS <br />Borehole <br />Sealing/ltem Method <br />Description <br />Diameter <br />Length <br />Quantity <br />Unit <br />Unit <br />Total Cost <br />Cost <br />Seal Holes <br />Portland cement grout ( <br />9" <br />1350 <br />298.00 <br />bag <br />$10.90 <br />$3,248.20 <br />Bag, material cost <br />only ...94 lb. bag) <br />Slurry Well Plugs <br />PVC plug - 8 in. <br />NA <br />NA <br />3.00 <br />EA <br />$159.41 <br />$478.24 <br />diameter borehole <br />Slurry Hole <br />Borehole <br />NA <br />NA <br />3.00 <br />EA <br />$3.81 <br />$11.43 <br />Markers <br />location/identification <br />marker (EA, material <br />cost only) <br />Drill Rig and <br />REEDRILL SK35, 9.0 <br />NA <br />NA <br />12.00 <br />EA <br />$384.34 <br />$4,612.08 <br />Labor <br />in. <br />Water Truck Time <br />Water Tanker, 2,500 Gal. <br />NA <br />NA <br />12.00 <br />EA <br />$63.70 <br />$764.40 <br />Job Hours: 12.00 Total Cost: $9,114.35 <br />MR -95 Exhibit 28- Page 190 Revised 09/29/11 <br />