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i <br /> Locking Security Casing or Cristy Box <br /> LAND SURFACE <br /> BACKFILL <br /> 2-inch minimum Cement grout <br /> 2-inch dia. blank casing <br /> X <br /> M <br /> L <br /> O1 <br /> N <br /> w � <br /> w Bentonite seal <br /> Cl) <br /> 2-inch min. sand pack <br /> _ 2-inch dia. slotted screen <br /> GROUNDWATER TABLE <br /> 6-inch minimum FIRST SATURATED PERMEABLE <br /> dia. borehole ZONE <br /> Bottom Cap <br /> l \ <br /> CLAY 51 / groro ut backfill <br /> + NOT TO SCALE <br /> SCHEMATIC DIAGRAM OF SATURATED ZONE (Shallow-groundwater) <br /> MONITORING WELL. <br />