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Ln LOG OF BORING <br /> o Ln <br /> ? v wo <br /> � � <br /> z z <br /> o <br /> N MATERIAL DESCRIPTION ° LULn <br /> oV) z to m U <br /> 4-1 42 silty CLAY;dark brown;slightly moist;very stiff(CL) 106.3 18.4 <br /> 4-2 25 silty CLAY(near clayey SILT)with fine sand;olive and orange 106.5 16.1 <br /> brown;slightly moist;very stiff(CL) <br /> more silty with depth <br /> silty CLAY/clayey SILT with fide sand;olive and orange <br /> 4-3 32 brown;slightly moist;ver stiff(CUML) 101.0 24.5 <br /> is <br /> Bottom of Boring at 12.5 feet <br /> No Groundwater encountered <br /> Logged by: BA B-24Truck Mounted Drilling Rig Mod.Cal <br /> Job# 218267 140 Pound Hammer Sampler <br /> Drilled on 1118118 No Groundwater encountered SPT Sampler <br /> GEOFORENSICS, INC. <br /> 303 Vintage Park Dr.,Suite 220,Foster City,CA 94404Figure A4- Log of Boring 4 <br /> TO:(650)349-3369 Fax:(650)571-1878 <br />