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Flush Mount Concrete Pad <br /> Well Cover <br /> ' Thickness >4 0 in <br /> s <br /> J Plug PVC Pipe <br /> (Locking Plug) 2 0 in Sch 40 <br /> ' 24 in length <br /> Plastic Plug <br /> (13227) <br /> PVC Riser <br /> ' 1 ft l 5ch 40 <br /> 5 ft lengths <br /> (12876) <br /> High Solids Bentonite Slurry <br /> or Neat Cement Grout <br /> Bentonite Well Seal <br /> Thickness >2 feet <br /> Grout Barrier <br /> (20140 Sand or Collapsed <br /> Natural Formation) <br /> Thickness i 2 feet above top <br /> of screens <br /> 1 x 2 OD <br /> Prepack Well <br /> Screen <br /> PVC Bottom Plug <br /> (12881) <br /> Expendable Point 3 6 in OD <br /> (AT3215) <br /> FIGURE 5 13 <br /> Properly Installed Geolprobe 1 0 in x 2 5 in OD Prepack Screen Monitoring Well <br /> 3 Push a 24-inch(610 mm)section of 2-mch PVC pipe over the well riser Position the top of the 2-inch <br /> pipe 1 5 to 2 0 inches(38 to 51 mm)above the top of the nser This will provide adequate room to install <br /> the locking cap on the 2-inch pipe and still allow removal of the nser cap <br /> 4 Insert the locking cap into the 2-inch PVC pipe Tighten the wing-bolt until the cap fits snugly <br /> 5 Position the well cover so that it is centered over the PVC pipe Push the cover into the ground using <br /> the foot of the probe unit if needed Provide at least 0 5 inches(13 mm)of space between the top of the <br /> locking cap and bottom of the well cover lid Do not push the cover so deep as to place the top of the lad <br /> below the surrounding ground surface <br /> Standard Operating Procedure Page 21 1 0 in x 2 5-in 00 Prepack Screen Monitoring Well <br />