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2-A <br /> APPROXIMA TE <br /> DEPTH BELOW LAND SURFACE, <br /> IAV FEET 13--inch TRAFFIC RATED VAULT <br /> O WATER LEVEL MEASURING POINT <br /> TYPES 3/4-inch ACCESS IN SLIP CAP <br /> 1 .3 ELEVATION 18.16 FEET ABOVE MEAN SEA LEVI <br /> 8%-inch LOCKING STEEL COVER <br /> 110k-tach BOREHOLE <br /> 4-inch SCHEDULE 40 <br /> FLUSH-THREADED PVC CASING <br /> CEMENT <br /> 43_5 <br /> 3/0 -inch BENTONITE PELLETS <br /> 45 <br /> 47 Na 50 FOUNDRY SAND <br /> 52 <br /> T <br /> No 20 SAND FILTER PACK <br /> r <br /> 4-inch SCHEDULE 40 <br /> FLUSH THREADED PVC SCREEN, <br /> 0 020-inch slots <br /> 72 <br /> 4] <br /> CENTRALIZER <br /> r <br /> 73 4-inch SCHEDULE 40 <br /> FLUSH-THREADED PVC CASING <br /> WITH END CAP <br /> FIGURE A-9. SCHEMATIC WELL CONSTRUCTION DIAGRAM <br /> FOR SHALLOW MONITOR WELL KS-6 <br />