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' PROTECTIVE STEEL OUTER CASING <br /> MEASURING POINT ON TOP OF PVC CASING <br /> GROUND SURFACE <br /> :BEo - :o`.o CONCRETE PAD <br /> ' 5%BENTONITE CEMENT GROUT <br /> 4-INCH DIAMETER SCHEDULE 40 PVC <br /> 1 <br /> ' BENTONITE SEAL <br /> APPROXIMATE 2 FEET THICK <br /> [ <br /> 3TO5 FEET _ <br /> 1 — <br /> 10-FEET OF 4-INCH DIAMETER <br /> 0.020-INCH SLOTTED PVC CASING <br /> NO.3 MONTEREY SAND FILTER PACK — <br /> ' 11-INCH DIAMETER HOLE .. THREADED PVC END CAP <br /> FIGURE 3 <br /> ' SCHEMATIC DIAGRAM OF <br /> NEW MONITORING WELL S <br /> KOPPEL STOCKTON TERMINAL <br /> STOCKTON,CALIFORNIA <br /> FLE:KSTOCK-3 CH2MHILL <br />