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DEPTH SALE o WELL <br /> PJA USCS DESCRIPTION <br /> NO. m CODE <br /> CONST. <br />• <br /> 20- <br /> S-20 42 0 ML Silt some clay, trace fine—grained sand, li ht alive green, <br /> ppmv slightly damp, hard, (trace orange stair <br /> - 22 - <br /> 24- <br /> S-25 <br /> 224S-25 51ppmv (orange staining) <br /> 26 <br /> 28 <br /> 30 S-30 34 ppmv Trace clay, brown, damp <br /> 32 <br /> 34 <br /> S-35 X50 32 <br /> ppmv <br /> Pp <br /> 36 <br /> 38 <br /> 40 S-40 8b 1mv <br /> 42 <br /> 44 <br /> S-45 85 ppmv (orange staining) <br /> 46 <br /> TD Total depth = 45-1/2 feet <br /> Boring terminated to construct vapor—extraction well <br /> 48 <br /> 50 <br /> AW,tAk/` LOG OF BORINGm B-15/VW-6 PLATE <br /> 7/17 ARCO Service Station No. 32 <br /> 25775 South Patterson Pass <br /> PROJECT NO. 30041-2 004191213 Tracy, California <br />