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ALTON GEOSCIENCE PROJECT NO. 42-0012 DATE DRILLED 3-24-92 <br /> LOG OF EXPLORATORY CLIENT Caftrans BORING <br /> NO. <br /> BORING LOCATION 1604 South B Street, Stockton, California S13-2 <br /> LOGGED BY M. Taylor APPROVED BY_ <br /> Page 2 of 2 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD Hollow Stem Auger HOLE DIAM. 6' <br /> SEE FIGURE 2 SAMPLER TYPE Split s000n <br /> CASING DATA N/A <br /> TOP OF CASING ELEVATION NIA DRILLER Westex <br /> c _ o DEPTH TO WATER •-66' <br /> aw t- 0 w DATE 3/24/92 <br /> E w 2 <br /> 0 u- o 2 a_ _ c U w0 TIME 10:55 AM <br /> GO - a. N o U° =nom. DESCRIPTION <br /> 38 <br /> 40 <br /> 14,27,35 0IN SILTY SAND:brown, moist, very dense. <br /> 42 <br /> - 44 <br /> ><:;w <br /> 15 28,34 0 <br /> 46 <>? ? <br /> >M1 auJ f yf <br /> - 48 <br /> >s»", <br /> 50 ---_._....__......------------- <br /> 8,17,15 0 mow:„z: --------- <br /> SILTY CLAY with fine sands: brown, moist, hard. <br /> 52 <br /> CL <br /> 54a:c <br /> No blow p —— <br /> counts <br /> 56 .,� <br /> 58 <br /> SM : SILTY SAND: brown, moist. <br /> 60 <br /> 8,15,19 0 <br /> a : <br /> 62 <br /> SAND:brown, moist,dense; poorly-graded fine-grained sand. <br /> SP <br /> 64 <br /> "�7 SAND:greenish brown, wet, medium dense; poorly-graded fine- <br /> 5,11,13 -50 66 s� grained sand. <br /> 68 Borehole terminated at approximately 66-1/2 feet below grade. <br />