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~~ <br />Colorado Division of Minerals and Geology <br />ESTI MIATING FORM - SEALING UNDERGROUND OPENINGS <br />______________________________________________ <br />______________________________________________ <br />Task #: 7 Prep. by: RCO Task Filename M021-7 <br />Da[e:30-Jul-97 Permit #: M-81-021 Mine: Nest Sunday Mine <br />Permit Action: Final Reclamation <br />Task Description: Portal Bulkhead Placement, Vent Shaft Closure <br />SOURCES FOR DUANT ITY TAKE OFFS 8 UNIT COSTS <br />Permit Plan, Inspection/Map, Construction Cost Guide <br />____________________________________________________ <br />AML Unit Lost Data <br />COST BREAKDONN <br />______________ <br />______________ <br />Item Description Unit Quantity S/Unit ~ Subtotal <br />Steel Plates for Portal clo~ Plate, 1.00 82,500.00 ~ 52,500.00 <br />sure, welded to anchors <br />Steel Plates for Vent Shaft Plate, 3.00 8600.00 ~ E7,800.00 <br />closure, welded to casing <br />TOTAL COST al F(aSUM(i35 <br />