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APPROXIMATE <br /> DEPTH BELOW LAND SURFACE, <br /> /N FEET 43—inch TRAFFIC RATED VAULT <br /> WATER LEVEL MEASURING POINT <br /> 0 qm TYPE: 3/4-tach ACCESS IN SLIP CAP <br /> 4 ,34 ELEVATION 20.1 1 FEET ABOVE MEAN SEA LEVEL <br /> B%—Inch LOCKING STEEL COVER <br /> 11�2--inch BOREHOLE <br /> 4--inch SCHEDULE 40 <br /> FLUSH—THREADED PVC CASING <br /> CEMENT <br /> 43.2 <br /> 3/9—inch BENTONITE PELLETS <br /> 44.7 <br /> Na 50 FOUNDRY SAND <br /> - <br /> v :. <br /> Na 20 SAND FILTER PACK <br /> 4—inch SCHEDULE 40 <br /> FLUSH THREADED PVC SCREEN, <br /> O 020--inch slots <br /> 71 .7 <br /> CENTRALIZER <br /> 72.7 4—inch SCHEDULE 40 <br /> FLUSH THREADED PVC CASING <br /> WITH END CAP <br /> FIGURE A-6. SCHEMATIC WELL CONSTRUCTION DIAGRAM <br /> FOR SHALLOW MONITOR WELL KS-- I <br />