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r <br /> Ext- U'r B <br /> ---TREMIE PIPE <br /> b <br /> r <br /> • °, SEDIMENTS SUSPENDFI) WITH <br /> ► ° e LIGHT BENTONITE SLURRY <br /> r-- WELL CASING <br /> "SCRATCHER TOOL" APPROXIMATELY <br /> 1" SMALLER DIAMETER THAN CASING <br /> UNDISTURBED SEDIMEN 1 S <br /> SUUTHWES T HIDE CUI4PANY <br /> MANTECA, CALIFORNIA <br /> MULDENHAUER EIJGIIJFEfl:1IJ(3 CO . <br />