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DEPTH BELOW <br /> GROUND SURFACE GROUND SURFACE <br /> (FEET) <br /> i CONCRETE PERIMETER SEAL, <br /> 3 FEET <br /> 3' <br /> WATERPROOF VAULT, <br /> TRAFFIC RATED <br /> 2-INCH LOCKING EXPANSION PLUG <br /> 8-INCH DIAMETER 2-INCH SCHEDULE 40 PVC,BLANK <br /> DRILLED BORING CASING,65 FEET <br /> BENTONITE GROUT,-62 FEET <br /> -62' <br /> BENTONITE CHIP SEAL,3 FEET <br /> 65' <br /> — 2-INCH SCHEDULE 40 PVC,0.020-INCH <br /> SLOT SCREEN,20 FEET <br /> FILTER SAND,NO.3 MONTEREY OR <br /> EQUIVALENT,21 FEET <br /> 2-INCH PVC END PLUG <br /> APPROXIMATE TOTAL DEPTH,85 FEET <br /> 85' <br /> NOT TO SCALE <br /> PROPOSED C ZONE MONITORING PROJECT NO. 17-06-005 <br /> WELL CONSTRUCTION DETAILS FILE NO. i:Projects\CalTank\Reports\Figs <br /> (MW-16C, MW-18C and MW-20C) <br /> CALIFORNIA TANK Innovative FIGURE <br /> 3105 SOUTH EL DORADO STREET environmental <br /> STOCKTON, CALIFORNIA solutions 12 <br />