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SAMPLE CA* uSGS DESCRIPTION WELL <br /> DEPTH a P 1.13. CODE CONST. <br /> NO. m <br /> 50 Silt trace very fine—grained sand, pale yellowish brown <br /> S-50 >50 25 Mt_ slightly damp, hard, calcite veins <br /> ppmv and concretions <br /> 52 <br /> 54 <br /> 56 S-55 53 115 Whitish calcite veins and concretions <br /> SB <br /> 60 194 <br /> 5-60 >50 ppmv <br /> - 62 - <br /> TD <br /> 2TD Total depth = 61 feet <br /> Boring terminated to construct vapor—extractson well <br /> 64 <br /> 56 <br /> 68 <br /> 70 <br /> 72 <br /> 74 <br /> 76 <br /> 7s <br /> so <br /> L.OG OF BORING: B-11/VW-3 PLATE <br /> = ARCO Service Station No. 6100 <br /> s��,t''l,�� <br /> 25775 South Patterson Pass 2 2 <br /> ILE NI Tracy, California <br /> PROJECT NO. 30041-2 Q041 BBC <br />