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ALTON GEOSCIENCE PROJECT NO 30-0140-02 DATE DRILLED 10/29/91 <br /> LOG OF EXPLORATORY CLIENT Former Mobil Station 04-NP4 WELL NO <br /> BORING A LOCATION 2375 Tracy Boulevard, Tracy,_CA AMW-5 <br /> LOGGED BY G N-Westermann APPROVED 13Y <br /> Page 1 of 1 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD HEX Hollow Stem Auger HOLE DIAM 10" <br /> SEE FIGURE 2 SAMPLER TYPE Caldornia Moddied Split-Spoon <br /> CASING DATA 4"Sch 40 PVC 5'Blank , 10'Screen <br /> TOP OF CASING ELEVATION 2619 feet msl DRILLER Westex <br /> c DEPTH TO WATER 7 00' 5 95' <br /> cc z g o <br /> a F- 2 J DATE 10/29/91 12/10/91 <br /> Sr g c O TIME 11 45 AM 800 AM <br /> wo CD <br /> U a DESCRIPTION <br /> 0 <br /> ASPHALT 3" ROAD BASE 6" <br /> 2 sandy CLAY brown, moist, firm, (cuttings from hand auger) <br /> ND 4"dram CL <br /> 4 Sch 40 . <br /> PVC ' <br /> 3,4.136 6 Casing sandy CLAY with some gravel brown, moist,very stiff <br /> ,9,11 8 GP„► sandy GRAVEL grayish-brown,wet, medium dense <br /> 4"dram -- ------------------------------.-----�----- <br /> 10 Sch 40 <br /> 7,9,11 PVC M clayey SILT with some sand light brown,wet <br /> 12 0 020' <br /> slotting '` -- ------------------------.__------------- <br /> 14 CL <br /> 3,4,13 16 End Cap sandy CLAY with some gravel light brown,wet, hard <br /> BOREHOLE TERMINATED AT 16 5 FEET BELOW GRADE <br />