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VGeoStrategies, Inc. Log of Boring B-8 <br />. PROJECT SP Oil Station No 11191 LOCATION 1469 East Hammer Lane, Stockton, CA <br /> GSI PROJECT NO 4300 701 SURFACE ELEVATION <br /> DATE STARTED 2-2-95 WL (ft bgs) DATE TIME <br /> DATE FINISHED 2-2-95 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 675"dia hollow-stem auger TOTAL DEPTH 515 Feet <br /> DRILLING COMPANY Geo-Environmental Drilling GEOLOGIST S Carter <br /> Ly- <br /> LU <br /> ca <br /> ►- o us <br /> 1- :> J (n <br /> ILL z <br /> CL v J J Y -j GEOLOGIC DESCRIPTION REMARKS <br /> x n <br /> d" 0 Q <br /> J <br /> m r� o X X <br /> W w ci m cars vas (D U) <br /> ° CL Pavement - 4" asphalt, 2" base rock <br /> SANDY CLAY (CL)- black (10 YR 2/1), medium dense <br /> to dense, low to medium plasticity, damp, 70-80% <br /> clay, 20-30% fine to medium sand <br /> ML <br /> 5 10 <br /> 0 21 30 g$-6 5 SANDY SILT (ML) - dark yellowish brown (10 YR <br /> 4/4), damp, hard, 70-80% silt, 20-30% fine sand, <br /> roots, rootholes <br /> �a 12 <br /> 0 p 1 88-t,5 Silt Increases to 100%. becomes moist <br /> Driller notes hard drilling at 14 feet <br /> �5 28 <br /> 0 0/4' B8-98 Calcification <br /> 20 0 0/6' 88-205 Color change to brown (10 YR 5/3),calcification <br /> 2523 SM SILTY SAND (SM) - dark yellowish brown, moist, <br /> 0 0/6 88-26 very dense, 75-80% fine sand, 20-25% silt, lightly <br /> mottled with oxide staining <br /> 30 20 <br /> 0 0/6' 88-31 Trace medium sand, trace fine gravel, mottled with <br /> light gray (10 YR 8/1) and oxide staining <br /> ML <br /> 35 <br /> JOB NUMBER 4300 701 Page 1 of 2 <br />