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*ETIC <br />CLIENT <br />ExxonMobil Otl Corp. <br />SITE NUMBER <br />99 -CAS <br />ON <br />75 East Aipina Avenue <br />75 East <br />Stockton California <br />ENGINEERING <br />DRILLING AND Clamed to s laid bgs Wng a hand auger. Drilled using a hollow stem <br />SAMPLING METHODS auger ng wdh a.inch augers Sampled Win a split spoon sampler <br />p� <br />LOG OF SOIL BORING: MW1 <br />WATER LEVEL <br />g 36 <br />z 33BI <br />COORDINATES: N2180369.9:E6331158.1 <br />START FINISH <br />TIME <br />0900 <br />TIME <br />1305 <br />ELEVATION TOP OF CASING: 16.02 <br />CASING BELOW SURFACE: 0.33 <br />TIME <br />1100 <br />1053 <br />DATE <br />2121/07 <br />2126107 <br />DATE <br />2/21107 <br />DATE <br />2121107 <br />DRILLING COMPANY: Cascade <br />LICENSE NUMBER: C57-717510 <br />REFERENCE <br />GS <br />TOC <br />(NCI -IES <br />w <br />0 <br />rc <br />>' <br />w <br />M <br />mw <br />sZ <br />> la <br />oa <br />m e <br />n <a�= <br />,awe„ <br />a <br />SURFACE <br />V <br />n <br />r' O <br />DD <br />CONDITIONS <br />Unpaved <br />���ON BY: <br />E. Appel <br />DETAILS <br />Single bolt, water <br />- fight, Mordson wall <br />box <br />CLAYEY SILT WITH SAND - brown (7.5YR 414), <br />medium sufT, low plasticity, fine grained sand, <br />slightly moist <br />ML <br />t <br />SILTY SAND WITH CLAY - brown (7.5YR 414). <br />medium dense, fine grained, moist <br />- dark yellowish brown (1 OYR 416). slightly moist. <br />SM; <br />Cement grout from <br />surface to 26 feel <br />18 <br />13 <br />10 <br />11 <br />-dense <br />bgs. <br />41 <br />10.4 <br />7 <br />77 <br />13 <br />SILTY CLAY - dark yellowish brown (1DYR 416). <br />hard- low plasticity. slightly moist to dry <br />Scheameter <br />dulle 40 PVC <br />21 <br />35 <br />50@5" <br />-0- <br />Riser Casing from <br />Original Grade to <br />30 feel bgs <br />1 <br />21 <br />2 18 <br />C <br />11 <br />11 <br />t <br />23 <br />c <br />L <br />_e <br />23 <br />1 <br />a <br />11 <br />30 <br />77 <br />50@5. <br />m <br />17 1 <br />I <br />t <br />CLAYEY SAND -yellowish brown (10YR 5/6), <br />dense, fine grained, slightly monst. some <br />cementation <br />Page i of 3 <br />ii <br />'a <br />9 <br />