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ALTON GEOSCIENCE PROJECT NO. 4 -001 DATE DRILLED 3-26-92 <br /> LOG OF EXPLORATORY <:<. CLIENT_ Caltrans WELL NO. <br /> BORING LOCATION 1604 South B Street Stockton California MW-1 <br /> ~` LOGGED BY M. Taylor APPROVED BY_ <br /> FIELD SKETCH OF BORING LOCATION Page 1 of 3 <br /> DRILLING METHOD Hollow Stem Auger HOLE DIAM. 10" <br /> SEE FIGURE 2 SAMPLER TYPE Continuous Core <br /> CASING DATA 4"Sch. 40 PVC <br /> TOP OF CASING ELEVATION 21,22' DRILLER Westex <br /> o DEPTH TO WATER -67' 65.96' <br /> n- f- E w J DATE 3/26/92 4/6/92 <br /> ch S a = 2 <br /> ch u_ n~ — 5 U O TIME 5:08 PM 11:30 AM <br /> m r d n v > n°C DESCRIPTION <br /> 0 " <br /> 2 SILTY CLAY:dark brown, moist, hard. <br /> 4 4"dlam. <br /> Sch.40 < ' CL <br /> 17,24,500 PVC <br /> for 3" 6 Casing <br /> 8 <br /> 0 .<_V -----------_r--------------- <br /> 10 v SILTY SAND:brown, moist. <br /> 12 ;SM <br /> 0 <br /> 14 <br /> O .♦F .H}. ... -------------------------- <br /> 16 <br /> <v <br /> SAND:brown, moist, poorly-graded fine-grained sand. <br /> 18 r '=SP <br /> 0 20 v<{. ,.•, ----_ --------------------- <br /> iC h} <br /> SILTY SAND:brown, moist. <br /> 22 <br /> 0 24 F>' SM <br /> 26 <br /> 28 z' <br /> 0 30 <br /> 32 -------------------------- <br /> 34 CL <br /> SILTY CLAY: reddish brown, moist. <br /> 25 <br /> `" <br /> I25 36 ____ <br />