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i <br /> SAMPLE o P.I.D. USCS DESCRIPTION WELL <br /> DOTH NO. CODE CONST. <br /> 2o- 37 <br /> 5-20 27 ppm M €/CI Clay silt/softy cloy greenish olive, dry mearurn plasbeity, very stiff <br /> 22 <br /> 24 <br /> 26 5-25 31 ppmv MI Silt trace cloy, fight olive gray, dry, non-plastic, very stiff <br /> 28 <br /> 30 5--30 28 294 <br /> PpmV <br /> 32 <br /> 34 <br /> . 36 5-35 26 2 mB <br /> PP <br /> 35 — <br /> 40S-40 X50 2711 Sm Silty sand, fine—grained sand modercte brown, dry <br /> pprnv (well consolidated) <br /> 42 Baring terminated at 41-1/2 feet to construct <br /> vapor—extraction well <br /> 44 <br /> 46 <br /> 4$ <br /> 50 — <br /> 52 <br /> rAwAkIi LOG OF BORING: B-21/VW- PLATE <br /> aw-ji �t7lMM ARCO Service Station No. 6100 <br /> 25775 South Patterson Pass 7 <br /> 11LE <br /> PROJECT NO. 30041 ND Tracy, California <br /> 0041058 <br />