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FLUSH COVER <br /> FLUSH MOUNT <br /> FILL <br /> LOCKING COVER .,, ,. , s+ !':,;. GRADE <br /> 6" STEEL r <br /> PROTECTIVE COVER _ •� <br /> ft <br /> THREADED PVE CAP .. . a••.j•- <br /> MINIMUM 8" DIA. �••'. �'=• ', •',"• - <br /> BOREHOLE <br /> 4" ID PVC CASING ;•,.:�. <br /> ' VARIES <br /> BENTONITE SEAL 3'-5' <br /> ^, 6" FINE SAND �''•_iw �W{' •� 6 <br /> FILTER PACK <br /> 4" ID PVC OR STEEL 15'-20' <br /> SCREEN (0.010" SLOT) <br /> BOTTOM OF DRILL HOLE NOT TO SCALE <br /> 0 <br /> w <br /> DEPARTMENT OF THE ARMY <br /> SACRAMENTO DISTRICT, ^' <br /> CORPS OF ENGINEERS <br /> NOVEMBER 1996 <br /> 0 <br /> TYPICAL MONITORING WELL <br /> CONSTRUCTION DETAIL <br /> FLUSH—MOUNTED COMPLETION i <br /> w <br /> 0 <br /> SCALE: NONE FIGURE: <br />