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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 706 BORING NO MW-E <br /> PROJECT NAME 1012 W YOSEMITE MANTECA CA PAGE <br /> BY J L STEURER DATE 08/18/92 SURFACE ELEV 29 FT <br /> PENETRA- LITHC- <br /> RECOVERY OVA tAu' <br /> TION W a GRAPHIC <br /> DESCRIPTION <br /> (FT/FTI (PPM} 19LOHS/FTI o S J o Z m COLUMN <br /> ' _ASPHALT = with aggregate base rock- _ _ - _ <br /> SAND (SP) -- brown fine grained moist <br /> urifarm hand augered material <br /> ' SAND (SP) - reddish brown fine grained <br /> loose moist no product odor <br /> 5 <br /> ' 1 5/1 5 2 6 <br /> tSAND (SP) - gray fine to medium grained - <br /> 10 moderately dense moist no product odor <br /> ' 1 5/L 5 1 20 <br /> 15 y SAND fSP1 -brown very fine to fine grained <br /> 1 s/1 5 3 >So M1 very dense moist micaceous <br /> ' SANDY CLAY (CL) - greenish brown (some <br /> reddish mottling) low plasticity moist <br /> no product odor <br /> - <br /> 20 SAND (SP) - dark gray fine grained dense <br /> wet no product odor <br /> 1 5/1 5 2 116 <br /> 1 - - - - - - - - - - - - - -- - - - - - - - - - -- - - - - <br /> SAND (SP1 - dark gray very fine grained <br /> ' <br /> densewet no <br /> _ - - - - - -product odor <br /> - - -- - - - <br /> 25 r SAND (SP) - oark gray very fine to fine <br /> 1 s!i 5 1 sa /! grained dense wet no product odor <br /> r - <br /> ! r Boring drilled to 30 feet sampled to 31 5 <br /> feet <br /> r r i <br /> 1 <br /> r ' <br /> 1 ' <br /> r I ! 30 <br /> I 1 5!1'51 <br /> I <br /> REMARKS Boring drilled with continous-flight hollow stem <br /> 8-inch 0 D augers Boring enlarged with 10-inch <br /> r � <br /> 01D aug ers Sampled[ w/2 I ❑ split spoon sampler <br /> I I r <br /> v I <br /> i I <br />