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Geological Technics Inc. <br /> Borehole Log <br /> Project Name C&B Equipment Borehole No. Mw-101 Page 1 of 2 <br /> Project No. 336.2 Date 10116/97 Contractor V&W Drilling <br /> Area & County 7474 W. 11th Street. Tracy. CA/ San Joaquin Co. <br /> Field Geo/Eng D. Jesberg & M. Niemi Drilling Method Hollow Stem Auger <br /> -i <br /> 12" 0-30' <br /> Borehole Dia.BL_1Q-_4OTot. Depth 40, Tot. Casing Depth 29' Casing Din. 2" Screened Interval 28.5'-26' <br /> Filter Pack 29-24' Annular Seal 31-29' Slot Size 0.020' Grout 40-31' Water Depth +/-7' <br /> Or <br /> `" o �, Remarks <br /> 4 u � o 3 Description (PPM) <br /> oc� �, Vl Z 3 U <br /> 0 U� <br /> i, J --- <br /> 0900 B --- CL CLAY-(7.5YR3/0), plastic, very moist, 7$2 <br /> T1 strong gas odor. <br /> 1 09156 <br /> ML SILT- grey green, slightly plastic, strong 272 <br /> [£ <br /> gas odor. <br /> 6 — <br /> 15 <br /> 0920 =_ ML SILT-(7.5YR4/4), slightly plastic. 13 <br /> 9 = — _ <br /> i' <br /> '= 20 0925 za SP SILTY SAND- i OYR4 4 fine to medium 3 <br /> :i 0935 Sp A45 aNDe�' 10YR3 2 fine to medium 8 <br /> 0940 I Sp SAND - medium to coarse grained. 4 <br /> 12 <br /> 25 is Sp SAND- 10YR3 4 , fine to medium g <br /> 1030 <br /> 320 :; grained, well sorted, tightly packed. SlmuiProbe Tolled to <br /> ..... <br /> collect rater sample. <br /> 3 SAND-(10YR4/2), fine grained, well <br /> 1200 22 SP sorted. SlmulP a. Sample <br /> j 1210 �4 SAND-fine to coarse, angular g <br /> .... ..... .......... <br /> 30 2B SW fra ments. <br /> Notes SAND CLAY ® Annular Seal ® Grout <br /> SILT Sample Submitted to Laboratory <br /> ;I <br />