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LOCKING WELL COVER <br /> CONCRETE APRON <br /> SLIP CAP <br /> NEAT CEMENT <br /> BLANK 40 PVC CASING 4—INCH <br /> 0-10 FEET <br /> BENTONITE PLUG <br /> 7-8 FEET <br /> 0.02 SLOTTED PVC 4—INCH SCREEN FILTER PACK (#3 SAND AND 3/8 PEA GRAVEL) <br /> 10-30 FEET 8-30 FEET <br /> PLUG <br /> 15" BOREHOLE DIAMETER <br /> EXTRACTION/RECOVREY WELL DESIGN <br /> ALL DEPTHS RELATIVE TO SURFACE GRADE <br /> NOT TO SCALE <br /> EXTRACTION WELL DESIGN ® Ad�arlced <br /> GeoEnvironmental, Inc. <br /> CHAPIN BROTHERS, INC. o/Norlhern ceuronnm <br /> 1766 MONTE DIABLO AVENUE PROJECT NO. 95-0103 FILE: 95-0103 FIGURE: <br /> STOCKTON , CALIFORNIA DATE 28 JUNE 2001 DRAWN BY: KMM 4 <br />