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ALTON GEOSCIENCE PROJECT NO 30-0140-02 DATE DRILLED 11/19/91 <br /> NO <br /> LOG OF EXPLORATORY CLIENT Former Mobil Station 04NP4 WELL <br /> BORING LOCATION 2375 Tra Boulevard,Tracy, CA AMW-6 <br /> LOGGED BY G N-Westermann APPROVED BY <br /> Page iofl <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD CME 55 Hollow Stem Auger HOLE DIAM 10" <br /> SEE FIGURE 2 SAMPLER TYPE California Modified Spla-Spoon <br /> CASING DATA 4"Sch 40 PVC 4' Blank, 10'Screen <br /> TOP OF CASING ELEVATION 26 33 feet msl DRILLER Westex <br /> z c o DEPTH TO WATER 6 00' 5 85' <br /> a w l� 5 J DATE 10/19/91 12/10/91 <br /> FS a_ _ o TIME 4 00 PM 8 00 PM <br /> CM Cn Q 3 0 ri d cc <br /> DESCRIPTION <br /> 0 <br /> 40 TOP SOIL 1' <br /> 2 gravelly FILL material with clayey SAND matnx brown, moist <br /> 4"dram ' • (encountered ground water with probe at 6'), gravel to 4" <br /> 4 VC 40 GP� 400 <br /> 4"0 diameter <br /> 2,2,3 6 Casing 404 7Z No reoovery <br /> ----------------------------------------- <br /> 8 4"dram clayey SAND with some gravel gray, saturated, (cuttings on <br /> Sch 40 hamrye <br /> 10 PVC clayey SAND gray, saturated(cuttings from auger) <br /> 0 020" SC <br /> 12 slotting <br /> SAND with some clay gray,saturated,very fine to very coarse <br /> End <br /> 14 sand, loose, heaving sand(cuttings on hammer) <br /> BOREHOLE TERMINATED AT 14 FEET BELOW GRADE <br />