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SAMPLE N.' USCS WELL <br /> DEPTH Co P.I.D. DESCRIPTION <br /> NO. CODE CONST. <br /> • Silt trace cla and fine—grained sand, brown, slightly <br /> S-50 >50 1 Q1 ML y g 9 Y <br /> 50 ppmv damp, hard, (ca€ache veins, vertica€ly and horizontally) <br /> - 52 - <br /> - 54- <br /> S-55 <br /> S-55 >50 83 Some sand, brown to light olive green, dry, hard, <br /> ppmv well consolidated <br /> 5S <br /> 58 5-58 >5D 205 Trace clay and fine—grained sand, light olive green, <br /> ppmv slightly damp, (yellow staining) <br /> 60- <br /> 62 - <br /> - <br /> 64 - <br /> S-65 >50 103 <br /> 66 ppmv <br /> _ 68 - <br /> - 70 - <br /> S-70 S-70 >50 ppmv Trace fine—grained sand, brown dry <br /> 72 - <br /> - 74 - <br /> S-75 >50 PPmv SM Sandy silt fine—grained sand, slightly damp <br /> 76 <br /> 78 <br /> SO PP <br /> S-80 >5D my <br /> TO Total depth = .50-1/2 feet <br /> Boring terminated to construct vapor—extraction well <br /> "i'tti LOG OF BORING: B-14/VW-7 PLATE <br /> iAWAW/7!l"% ARCO Servlce Station No. 6100 30 <br /> 25775 South Patterson Pass <br /> PROJECT NO. 30041-2 FILE NO Tracy, California <br /> 0041811C <br />