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<br />May 21, 2009 <br /> <br />Bonestroo <br />c/o Mr. Mark Statz, City Engineer <br />2335 Highway 36 W <br />St. Paul, MN 55113 <br /> <br />Re: Extra Work- Buried Demolition Debris <br /> <br />Dear Mark: <br /> <br />Buried demolition debris was encountered yesterday in the watermain trench at approximately <br />station 18+00. The debris consists of concrete block, rebar, and wood mixed in with saturated <br />peat muck. Excavating and stockpiling of this material will be compensated under force account <br />payment. The stockpile is located in the Waterworks parking lot and I would estimate <br />approximately 130 tons of waste. <br /> <br />Because the debris include wood and high percentage of organic peat, it is not suitable for <br />recycling by crushing into class 7 aggregate base. J contacted Waste Management Elk River <br />Landfill and they would accept it in their demolition landfill. The cost for land filling (includes <br />loading, trucking, and landfill tipping fees) is $80.00 per ton. <br /> <br />Another option is to separate the debris from the peat muck. This would require air drying the <br />material, sorting through the pile to separate the wood, concrete, and rebar from the muck, and <br />recycling of the separated materials. The cost for separating/recycling option is $5600.00 lump <br />sum. <br /> <br />Sincerely, <br /> <br />FOREST LAKE CONTRACTING, INC. <br /> <br />Robert D. Vollhaber <br />Vice President <br />