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Memo to Russ Means 9 November 14, 2007 Whirlwind Mine Bulkhead Costs File No. M-2007-044 Task and Cost Item Quantity Extended Cost Set Rebar Anchors and Fine Site Cleaning Decline Bulkheads (both) 1.25 yard Load Haul Dump Pack Rat $35/hr. x 10.5 hrs. x 2 x 1.5 $1102.50 1.25 yard Load Haul Dump $35/hr. x 18.5 hrs. x 1.5 $971.25 Build Forms, Set Pipes, Valves, and Rebar, Divert Water All Whirlwind Bulkheads 1.25 yard Load Haul Dump $35/hr. x 85.6 hrs. x 3 x 1.5 $13,482.00 Set Up and Pour Bulkhead Decline Bulkheads (both) 1.25 yard Load Haul Dump Forklift Pack Rat 1.25 yard Load Haul Dump Forklift $35/hr. x 21 hrs. x 2 x 1.5 $20/hr. x 21 hrs. x 2 x 1.5 $35/hr. x 38 hrs. x 1.5 $20/hr. x 38 hrs. x 1.5 $2205.00 $1260.00 $1995.00 $1140.00 Strip Forms, Move Equipment, and Grout Bulkhead All Whirlwind Bulkheads 1.25 yard Load Haul Dump $35/hr. x 128.4 hrs. x 3 x 1.5 $20,223.00 Miscellaneous Costs All Whirlwind Bulkheads Compressor usage $3000 x 3 x 1.5 Air Bean 25 pump usage $1200 x 3 x 1.5 Flight 123 HP pump usage $1620 x 3 x 1.5 GD 83 jackleg $1125 x 3 x 1.5 Outside loader $6000/mo. x 3 x 1.5 Subtotal Other Equipment, not including overhead and profit Overhead and Profit @ 13.07% Subtotal Add 5% DRMS administration required by statute Other Equipment Component of Bulkhead Bond Bond Amouut for One Required and Two Contineency Bulkheads Labor $170,558.00 Supplies, Equipment, and Engineering $238,050.00 Other Equipment $122,639.00 Total $531,247.00 Direct and Indirect Costs Inclusive $13,500.00 $5400.00 $7290.00 $5062.50 $27,000.00 $103,297.50 13,500.98 116,798.48 5839.92 $122,639.00 c:\acs filesVvly Documents 4-19-061hru\whirlwind bulkhead costs.doc