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Eke{[ -�I41ast AT&SF Railway Company <br /> Project#653 <br /> Environmental Resources Management Drilling Lo <br /> r PrOact ua Location y%ckton.CA Sketch Map <br /> owner AI&SF nailway Co. Project Number 553 <br /> Wall/Boring Numbgr B14 Total Depth 251/211 Diameter 4 112 <br /> Surface Elevation 20 ft Water Level: Initial — Rot.Pt. <br /> Screen: Dia._ Length Slot Size <br /> Length Type x <br /> Casing: Dla Notes <br /> Drilling Company B F Drlilina Co. Drilling Method 4"Fllahf Au%fi <br /> Driller flgtd srsY___ Log By MSS Date Drilled 89189 . <br /> C3 a <br /> m `m C Description/Soil Classitication <br /> D rn (Consistency,Moisture,Color,Ddor,Staining,Etc.) <br /> s n <br /> N <br /> '� 1r <br /> c� ace � <br /> 2 <br /> GM <br /> 4 Fill-rubble-gravel,no hydrocarbon odor <br /> :f: :.' <br /> 6 +. r <br /> $ e'-8.5"silty clay,hydrocarbon odor,grey staining <br /> B-10-9-9.5 <br /> 10 10.5•end of visible contamination <br /> 12 12'to 12.5'very faint hydrocarbon odor <br /> Reappearance of grey staining <br /> 14 <br /> Diesel <br /> 16 l <br /> odor <br /> 20 CL <br /> B-10-20-20.5 <br /> 22 <br /> 23.5'no hydrocarbon odor <br /> - 24 <br /> -1 Hole terminated at 25.5 ft <br /> 26 <br /> 28 <br /> 30 Boring backfilled with bentonite to grade <br /> 32 <br /> Page— 1 of 1 <br />