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EMCO WHEATON A72 <br /> MONITORING WELL BOX LOCKING EXPANSION PLUG <br /> OR EQUIVALENT <br /> EXISTING SURFACE <br /> 2'x 2 'x F REBAR REINFORCED <br /> CONCRETE PAD (IF REQUIRED) <br /> 2' <br /> SAND-CEMENT SLURRY <br /> OR NEAT CEMENT <br /> WATER LEVEL <br /> 19' 6 to 14' bgl <br /> I <br /> WELL CASING <br /> 4-INCH DIAMETER <br /> SCHEDULE 40 PVC <br /> --25' <br /> 2' BENTONITE SEAL <br /> SAND FILTER PACK <br /> I LONESTAR 43 SAND <br /> W <br /> WELL SCREEN <br /> MACHINE SLOTTED PVC <br /> 0 02-INCH SCREEN <br /> 3' <br /> PVC THREADED END-CAP <br /> OR SLIP CAP ATTACHED WITH <br /> STAINLESS STEEL SCREWS <br /> 8-INCHES (2-INCH WELL) <br /> NOT TO SCALE <br /> PROPOSED AIR SPARGE POINT CLEARWATER GROUP <br /> CONSTRUCTION DETAILS (SP-1) <br /> Barnes Trucking, 1817 Fresno Avenue Project No Date Figure <br /> Stockton, California ZB178C 08101. 7 <br />