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GROUND UTILITY BOX LOCKING CAP <br /> SURFACE <br /> ..,....... ........,., <br /> ,.... ....,. <br /> . ..... ....,. <br /> ...., ...... <br /> 9-10-INCH <br /> DIAMETER <br /> CEMENT BENTONITE <br /> GROUT BOREHOLE <br /> ::::: :::::: <br /> (3%BENTONITE) <br /> ..,.. ,,,,.. <br /> BENTONITE - <br /> SEAL <br /> 4-5-INCH <br /> DIAMETER <br /> BLANK PVC <br /> CASING <br /> SAND PACK <br /> I . <br /> 4.5-INCH <br /> DIAMETER <br /> PERFORATED <br /> PVC CASING <br /> BOTTOM SCREW CAP <br /> OR SILT TRAP <br /> AS APPROPRIATE <br /> 0 <br /> P <br /> P <br /> n <br /> h <br /> 0 <br /> c <br /> D <br /> U <br /> NOT TO SCALE <br /> a <br /> P <br /> z � <br /> t <br /> Figure B-1 TYPICAL A-ZONE MONITORING WELL CONSTRUCTION <br /> Project No. 3966 LINCOLN CENTER. STOCKTON, CALIFORNIA L E V I N E•F R I C KE <br /> ENGINEERS.Nvp EOLOGISTS 6 AR ED IENTMM <br />