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' Geological Technics Inc. <br /> Borehole Lo <br /> Project Name George's Service Borehole No. uw-109 Page 2 of 2 <br /> Project No. 425.2 Date 4/29/97 Contractor V&W Drilling <br /> ' Area L County Corner of Durham Ferry Rd and Hwy 33/ San Joaquin Co <br /> Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br /> ' 12" 0-39' <br /> Borehole Dia.B-39_S0Tot. Depth 50' Tot. Casing Depth 50' Casing Dia. 2" Screened interval 47.5-45 <br /> ' Filter Pack 50-43.5' Annular Seal 43.5-41' Slot Size 0.020' Grout 41-0' Water Depth +/-7' <br /> v <br /> ' v 3: � in CS o 0Remarksy z° o m o ? Description <br /> M OVM (PPM) <br /> ) <br /> 3 L1 3 a U rn <br /> ' 0708 :: SW HEAVING SAND-medium to very coarse <br /> grained, geology sample only. <br /> No hydrocarbon <br /> odor <br /> 3 <br /> SW HEAVING SAND <br /> ' 0801 --- SANDY CLAY-(10YR5/8), fine grained 0 <br /> sand. <br /> 40 <br /> 0926 so/a^ = CL CLAY-(2.5Y6/8), very plastic, pieces of <br /> __— wood from auger plug. <br /> 0951 3 SAND-fine to coarse grained, heaving, <br /> s limited core. <br /> 45 3°' °o°o° GC CLAYEY SANDY GRAVEL-fine to ve 1004 3e .0 o 0 o rY 0 <br /> 47 coarse sand, gravel to 25mm. <br /> ' 50 <br /> 1023 3o CL CLAY-(2.5Y6/8), plastic. 0 <br /> ' Notes SAND CLAY ® Annular Seal ® Grout <br /> ' SILT °a° GRAVEL Sample Submitted to Laboratory <br />