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Wayzata Country Club Project BL-08-03640 September 29, 2008 Page 7 D.2. Fairway Reconstruction/Surcharging D.2.a. Discussion Currently,the surface of the fairway is irregular and difficult to play. In addition,the fairway surface elevations will be adjusted at some locations. The irregular and settled surface is due, in large part,to the variable depths(4 feet to 24 feet) of the soft, very compressible peat soils. Simply placing new fill atop the existing soils will result in a new round of settlement and, eventually,the irregular surface would reappear at many locations. An additional layer of soil (a surcharge) could be placed to promote additional settlements and,then, be removed after several months. Reducing the weight upon the compressible soils by removing the surcharge halts any short-term settlement and reduces the amount of long-term settlement. Improving the irregular surface without raising the present surface grades could be accomplished, in our judgment,with the placement of a 2-to 3-foot surcharge. From past experience,the surcharge should remain inplace about four months. Removal of the surcharge and filling in the settled areas with an estimated 7 plus inches of fairway topping soil could be done when the surcharge is removed. With this approach some isolated surface irregularities could reappear above the deeper peat over time. Raising the grades along the fairway more than several inches is a more complicated process including the "steps" summarized below. Actual surcharge dimensions, including thickness and earth materials, requires a good deal of engineering and development of schematic plans, detailed procedures, and elevation monitoring during construction. Some geotextile reinforcement of the soil is frequently recommended. Typical recommendations are provided below. We recommend leaving the vegetation (sod/grass)on/in the fairway prior to placing new fill, unless it is desired to use the sod elsewhere. Trees, if any,within the surcharge area should be cut/removed flush to the ground surface. Removal of the stump and root mass is not required. Prior to placing the surcharge, we recommend a geotextile fabric be placed over the ground surface. The fabric will assist with the following: "reinforcement" of the new fill; leveling of the fairway surface; and separation between the soils and underlying vegetation and peat. We recommend a geotextile meeting the requirements of Mn/DOT Specification 3733 for a Type V geotextile. The on-site granular soils encountered in the borrow source borings (ST-1, ST-2, and ST-3) are suitable for reuse as surcharge materials If additional surcharge material is needed, imported BRAUN INTERTEC