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PLATE C:DEMONSTRATION OF SURFACE SOIL PERMEABILITY CAUSED BY SEVERE SOIL CRACKING. NOTE <br /> REMOVAL OF PLOWED SOH,LAYER. DOUBLE RING INFILTROMETER WAS DRIVEN INTO SOIL TWO FEET FROM A <br /> SIX-INCH DIAMETER BORING. RINGS WERE FILLED WITH SIX INCHES OF WATER. NOTE WATER SEEPAGE INTO <br /> SHALLOW BORING AS WATER MIGRATES THROUGH SURFACE CRACKS. (08/27/03) <br /> i <br /> SCF•.- y� � j i <br /> Y' <br /> PLATE D:DOUBLE RING INFH,TRONILIER IES 1''_4 INCHES BELOW SOIL SURFACE AND UNDER PLOWED LAYER. <br /> AFTER FOUR HOURS OF TESTING,THERE WAS NO WATER MOVEMENT WITHIN THE INNER RING.(09/08/03) <br /> Cho 5 e COnsuft2ng <br />