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• <br />Colorado Division of Minerals and Geology <br />_________________________________________ <br />ESTIMATING FORM - SEALING UNDERGRWND OPENINGS <br />Task k: 002 Prep- by: VHE Task Filename M305-002 <br />oate:+•+'/ •+ ++ Permit #: M-77-305 Nine: Clp-21 Mine <br />~f!(/dti <br />Permit Act iron: General 112 bond review <br />Task Description: Close one portal and four vent holes <br />SOURCES FOR GUANT ITY TAKE-OFFS 8 UNIT COSTS <br />___________________________________________ <br />___________________________________________ <br />Costs from Inactive Mines Program, contractor bids received <br />during 1990 construction season. <br />Portal = 9' + 11' <br />4 vent holes, 7' diameter, are to be closed by blasting <br />LOST BREAKDONN <br />Item Description <br />------------------------- ~ Unit <br />--I------_--- Quantity E/Unit ~ <br />-----------________-I- Subtotal <br />--__-._-._-_ <br />Backfill portal 25'D ~ cu.yd. 91.67 33.50 ~ 5320.85 <br />Vent hole blasting per job 4.00 52,000.00 ~ 58,000.00 <br />________________________________________________________________________ <br />____________________________________ <br />TOTAL COST 58,320.85 <br />