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SAMM 30 <br /> � USCS <br /> DEEM No. � P'h'D' CODE DESCRIPTION WELL <br /> CONST. <br /> 20— <br /> S-20 4Q a <br /> Silt some clay, trace sand, fine—grained, dark yellowish brawn, <br /> ppmv �� dry, non—pigsiic, herd. <br /> 22 <br /> r24 • . <br /> } <br /> 26- 5-25 30 ppmv Silt, moderate yellowish brown, very stiff. .' <br /> — 28- <br /> - 30— <br /> S-30 <br /> S-34 29 1 <br /> r . <br /> ppmv <br /> 32 ' <br /> �i 34 . � <br /> S-35 <br /> 36 57 ppmv Silt, some clay hard- <br /> 38 - <br /> 4D <br /> ard_384Q <br /> S-44 42 - <br /> PPmv <br /> 42 <br /> Dark yeilowisn brown. <br /> 44 <br /> 46 5-45 34 ppmv Silty ;cna, r:ne–grained, dark yellowish brown, ijry, non–plastic, <br /> SM medium dense. <br /> Boring terminatea at 46--1/2 Feet. •• <br /> 48 Boring backfilled with cement/bentonite slurry. <br /> r, <br /> r <br /> LOG OF BORING: B-18 PLATE <br /> 'a VA66% ARCO Service Station No. 548 <br /> 1612 Hammer Lane 11 <br /> PROJECT NO. 30004 0 04is8 Stockton, Callfornta <br /> r' <br />