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STATE OF COLORADO <br />~IVISION OF MINERALS AND GEOLOGY <br />epartment of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />OLORADO <br />I V I S I O N O F <br />IINERALS <br />EOLOGY <br />:LAFIATION•NI NING <br />rAFETT•SCIENCE <br />Seneca Coal Company Bill Owens <br />Yoast Mine C-94-082 covemor <br />Permit Renewal 02 Russell George <br />2I March 20U$ Executive Director <br />~S. Ronald W. Cattany <br />Division DIreC[Or <br />Natural Resource Trustee <br />TASK 035 -Construct Final Drainage Channels $477.444.80 <br />CHANNEL LENGTH(ft) FABRIC(svdl RIPRAP(cvdl <br />YPM-1 3900 6500 1640 <br />YPM-3 1700 2830 710 <br />YPM-4 1200 2000 500 <br />YPM-S 2300 3830 965 <br />• YPM-6 900 1500 380 <br />YPM-7 1 S00 2500 630 <br />YPM-8 300 500 125 <br />YPM-12 1200 <br />YPM-13 1130 1810 475 <br />TOTALS 14,130 21,470 5,425 <br />INDIVIDUAL COSTS <br />Geotextile: ($5.21/sq yd)*(21,470sq yd) _ $111,858.70 <br />(8hrs/2,400sq yd)*(21,470sq yd) = 71.57hrs <br />Riprap: ($57.70/cu yd)*(5,425cu yd) _ $313,022.50 <br />(8hrs/53cu yd)*(5,425cu yd) = 818.871hrs <br />Excavate: (14,130cu yd)*($3.72/cu yd) _ $52,563.60 <br />TOTAL COST <br />Geotextile: $111,858.70 <br />Riprap: $313,022.50 <br />• Excavation: $ 52,563.60 <br />Total: $477,444.80 <br />