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1 <br /> TABLE 1 <br /> ' WELL CONSTRUCTION DETAILS <br /> Mountain House Storm Water Detention Basin <br /> ' MWI MW2 MW3 MW4 <br /> IBorehole Diameter(inch) 8 8 8 8 <br /> Total Depth (ft bgs) 30 30 30 60 <br /> ' Well Diameter(inch) 2 2 2 2 <br /> ' Screen Interval(ft bgs) 20-30 20-30 20-30 50-60 <br /> Filter Pack(ft bgs) 18-30 18-30 18-30 48-60 <br /> Bentonite Plug(ft bgs) 16-18 16-18 16-18 45-48 <br /> Grout Fill(ft bgs) 0-16 0.16 0-16 0-45 <br /> Screen Slot Size(inch) 0.010 0.010 0.010 0.010 <br /> ' Ground Surface Elevation 126.045 120.535 116.850 118.135 <br /> (ft rust) <br /> Top Of Casing Elevation 129.955 123.360 119.635 121.035 <br /> ' (ft msl) <br /> Groundwater Elevation 109.85 107.52 104.62 98.25 <br /> (ft msl) <br /> Groundwater Elevation <br /> 1 16.20 13.02 12.24 19.89 <br /> (ft bgs) <br /> * Measured 9-14-05 <br /> NOTES(All wells): <br /> ft bgs: Feet below ground surface <br /> It rust : Elevation relative to mean sea level,measured in feet <br /> Well Material : Schedule 40 PVC - <br /> Filter Pack Sand Type :#2/12 <br /> Bentonite Chip Size : 3/8 inch <br /> Grout Recipe :Type I/II Neat cement only <br /> Drilling Method : 8 inch hollow-stem auger <br /> Well Box Type: 8 inch stove-top,steel protective casing w/concrete pad and bollards <br /> Well Casing Blank Interval :Top of casing to top of screen interval <br /> INK <br /> WALLACE•KUHL <br /> Er ASSOCIATES INC. <br />