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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />•1313 Sherman St., Room 215 <br />Denver, Colorado 60203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />Seneca Coal Company <br />Seneca II-W Mine C-82-057 <br />Permit Revision 04 <br />29 June 2004 <br />JRS <br />COLORADO <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />REC LAM ATION•N IN ING <br />SA FETY•SCIENCE <br />BIII OWQnS <br />Governor <br />Russell George <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />Task 038 -Construct Final Drainage Channels $329,888.49 <br />The following are the channels that will require geotextile (RS Means Section 02370 700 <br />0062) and riprap (RS Means Section 02370 450 0200). <br />Channel Fabric(SgYd) Ripran(CuYd) <br />006 6,667 1,667 <br />006-NE 1 1,333 333 <br />006-NE2 533 133 <br />• <br />006-EI 333 83 <br />006-E2 267 67 <br />PM-1 1,400 350 <br />PM-2 1,600 400 <br />PM-2A 1,467 367 <br />PM-3 1,600 400 <br />PM-4 1,267 317 <br />Total <br />Costs: <br />Geotextile <br />Riprap: <br />Totals: <br />Geotextile: <br />Riprap: <br />• Total: <br />Hours: <br />16,467 Sq.Yd. <br />4,117 Cu.Yd. <br />(16,467 Sq.Yd.) x ($6.72/Sq.Yd.) _ $I 10,658.24 <br />(16,467 Sq.Yd.) x (8hrs/700Sq.Yd) = 188.19 hrs <br />(4,117 Cu.Yd.) x ($53.25/Cu.Yd.) _ $2] 9,230.25 <br />(4,117 Cu.Yd.) x (8hrs/62Cu.Yd.) = 531.23 hrs <br />$110,658.24 <br />$219,230.25 <br />$329,888.49 <br />719.42 <br />Office of Office of Colorado <br />Aninc.l I and Rnrlamatinn Active and Inactive Mines Geological Survey <br />