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Ask- <br /> MONITORING WELL BOX LOCKING EXPANSION PLUG <br /> EXISTING SURFACE <br /> CONCRETE PAD <br /> 1' <br /> SAND-CEMENT SLURRY <br /> OR NEAT CEMENT <br /> 2' <br /> BENTONITE SEAL <br /> WELL CASING <br /> 1, 2-INCH DIAMETER <br /> W SCHEDULE 40 PVC <br /> c <br /> G <br /> 25' <br /> C <br /> WATER LEVEL (UNCONFINED) <br /> SAND FILTER PACK <br /> 20' 15 <br /> WELL SCREEN <br /> MACHINE SLOTTED PVC <br /> PVC THREADED END-CAP, <br /> OR SLIP CAP ATTACHED WITH <br /> STAINLESS STEEL SCREWS <br /> NOT TO SCALE Lower 10' of boring will be filled <br /> with hydrated bentonite clay <br /> PROPOSED WELL CONSTRUCTION DETAIL CLEARWATER GROUP, INC. <br /> Barnes Truckmg Facthty <br /> 1817 South Fresno Avenue Project No Figure Date Figure <br /> Stockton, California C-178 11/99 3 <br />