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11/07/96 10:59 '$510 842 8770 CHEVRON U.S.A. _ Z026/031 <br /> CLIENT STATION LOCATION <br /> FA ENGINEERING, 45 E. Harding Way <br /> SCIENCE,AND CheVrOf1 USA Inc. SS 9^1918 Stockton, California <br /> TECHNOLOGY.INC. otaryn wtt 8.5 in <br /> LOG OF SOIL BORING: V4 00 hollow stem auger and 2 in. modified California Split spoon sampler <br /> with brass liners: C57:512268 <br /> Coordinates: N 37 58' 02" WATER LEVEL DRILLING <br /> W 121 17'40" START FINISH <br /> ;TIME <br /> Elevation top of casing: DATE rDATE <br /> E 9 00 TIME10:00 <br /> Casing below surface: REFERENCE 1/25!69 DATE v25/89 <br /> nc es is `5 o, SURFACE Vacant lot with uneven, graded soil <br /> r_ s a j b WELLFFpe <br /> H RAPHIC CONDITIONS <br /> am N O ¢ DETAICtj LOGDESCRIPTION by: Jan Stepek <br /> e 1M Silty sand, brown, moist, no odor <br /> 3 Clay, black; moist, no odor <br /> 5 <br /> j Sandy clay,brown, moist <br /> 6 / <br /> s <br /> 8 / <br /> / <br /> 9 Silty clay, brown, moist, no odor <br /> / <br /> 5 10 ` <br /> 16 13 0 / <br /> 15-011 <br /> 15 <br /> 12 - - <br /> 13- <br /> 14-7 <br /> 2 13 14 <br /> 15 �� Silt, brown, moist <br /> 18 16 8 O <br /> 7 Y 16 <br /> v„ 17 <br /> 18 <br /> ii <br /> r <br /> 19— <br /> N <br /> �. 20 Page 1 of J11K <br />