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4= <br /> f <br /> l' <br /> ♦ +v <br /> (3) Yellow 2-inch diameter <br /> concrete filled steel posts <br /> 8-inch diameter <br /> ----- lockable steel casing <br /> �- - Water-tight PVC Gap <br /> 5' <br /> 2' to 3' <br /> 1IF <br /> Sloping 3-foot square 10.5- to 11-inch <br /> 4-inch thick concrete pad diameter borehole k <br /> . i <br /> 4-inch diameter i <br /> schedule 80 PVC <br /> blank casing <br /> Neat Cement <br /> Grout <br /> Bentonite Pellet w <br /> w w <br /> Seal <br /> ww .wwww <br /> Sand Filter 10-foot of flush-threaded <br /> (Monterey No. 3) k € a ; 4-inch schedule 80 PVC <br /> slotted well casing <br /> (0.02-inch slot) <br /> Threaded cap or plug <br /> Proiw No. <br /> r: 9Q380A DEFENSE DEPOT TRACY FIGURE 6-3. TYPICAL MONITORING <br /> WELL CONSTRUCTION <br /> Woodward-Clyde Consultants (NOT TO SCALE) <br /> 6-20 <br />