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Twentymile Coal Company <br />18 LT Utility Borehole — Drilling <br />October 27, 2010 <br />Bid Form —18 Left Utility Borehole <br />i <br />• <br />18 Left Utility BH Sscope of Work 102710.doc 10/27/2010 <br />Page 6 <br />Units <br />Volume <br />Unit Rates ($) <br />Total ($) <br />Mobilization <br />LS <br />1 <br />Install 16" diameter or <br />FEET <br />60 <br />other appropriately <br />sized conductor casing <br />for a 14 -3/4" drilled <br />borehole <br />Drill nominal 14 -3/4" <br />FEET <br />1390 <br />borehole <br />Install schedule 80, 8- <br />FEET <br />1400 <br />5/8" welded joint steel <br />casing <br />Install schedule 80, 4- <br />FEET <br />1400 <br />1/2" welded joint steel <br />asing <br />urnish & install grout <br />YD3 <br />seal. <br />Furnish 4 grout baskets <br />LS <br />1 <br />Equipment, water <br />LS <br />1 <br />storage tanks, etc. <br />Misc. expendables, bits, <br />LS <br />1 <br />etc. <br />Per Diems, Daily <br />LS <br />1 <br />Travel <br />Demobilization <br />LS <br />1 <br />Total <br />i <br />• <br />18 Left Utility BH Sscope of Work 102710.doc 10/27/2010 <br />Page 6 <br />