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CLIENT <br />SITE NUMBER <br />LOCATION <br />ET9 <br />ExxonMobil Oil Corp <br />99 -CAS <br />75 East Alpine Avenue <br />Stockton California <br />ENGINEERING <br />DRILLING AND cleared to 5 feet bgs using a soil vacuum. Drilled using a hollow stem <br />SAMPLING METHODS auger rig with e•inch augers Sampletl Mtn a spit spoon sampler <br />LOG OF SOIL BORING: IViW4 <br />WATER LEVEL <br />V. 36.5 <br />1 34.63 <br />COORDINATES: N2180328.3 :E6331194 1 <br />START FINISH <br />TIMETIME <br />ELEVATION TOP OF CASING: 16.78 <br />TIME <br />0946 <br />1103 <br />CASING BELOW SURFACE: 0.28 <br />1415 <br />0950 <br />DATE <br />2122/07 <br />2126/07 <br />DATE <br />2/22107 <br />DATE <br />2!23107 <br />DRILLING COMPANY: Cascade <br />LICENSE NUMBER: 057.717510 <br />REFERENCE <br />GS <br />TOC <br />INCHES <br />o <br />W <br />U <br />rc <br />w <br />pJ <br />on <br />Lpp^ <br />Q4 <br />oa: <br />ammo <br />o: <br />w <br />rP <br /><-rte, <br />SURFACE <br />�' 0 <br />2c� <br />cv� <br />CONDITIONS <br />Landscaping <br />DESCRIPTION BY: <br />E. Appel <br />DETAILS <br />Single bolt, water <br />light, Morrison well <br />CIbox <br />ASPHALT from 0 to 6Inches bgs <br />AGGREGATE BASE from 6 to 12 Inches bgs <br />t <br />SILTY CLAY -dark brown (10YR 313), very stiff, <br />L <br />low plasticity, slightly moist <br />SANDY CLAY - dark yellowish brown (10YR 4/4). <br />very s8ff. low plasticity, fine grained sand, slightly <br />moist. <br />POORLY GRADED SAND - brown (10YR 4/3). <br />18 <br />18 <br />3 <br />SP <br />medium dense, medium and some fine grains, <br />moist. <br />Cement grout from <br />surface to 26 feet <br />bgs <br />6 <br />B <br />12.8 <br />SILTY CLAY - dark yellowish brown (10YR 414). <br />7 <br />very stiff, low plasticity, moist. <br />GRAVELLY SAND WITH SILT - dark yellowish <br />12 <br />1 <br />18 <br />17 <br />•• <br />' • <br />•:SW:• <br />brown (1DY 414), medium dense to dense. fine to <br />medium grained, rounded gravel to 1 inch in <br />diameter <br />2 -(rich diameter <br />Schedule 40 PVC <br />Riser Casing from <br />Original Grade to <br />30 feet bgs <br />18 <br />t <br />I1 <br />e 18 <br />18 <br />tt <br />- <br />" <br />SILTY SAND WITH CLAY- dark yellowish brown <br />(10YR 414), medium dense. fine with medium <br />grains, sllghlly moist. <br />16 <br />0 <br />Vt <br />16SM <br />$ <br />< <br />12 <br />m <br />16 <br />362 <br />t <br />14 <br />CLAY WITH SILT - dark yellowish brown (10YR <br />414), hard, low plasticity, slightly moist <br />20 <br />5fi � <br />0 <br />W <br />O <br />b <br />1 <br />Pace 1 at 3 <br />O <br />