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LOG OF EXPLORATORY BORING PROJECT NUMBER 706 BORING NO Mw-5 PROJECT NAME 1012 W YCSEMITE MANTECA CA PAGE BY J L STEURER DATE 08/18/92 SURFACE ELEV 29 FT PENET114- LITHB- RECBVERY OVA 'n TION 7 w ci �u a GRAPHIC DESCRIPTION (FT/FTI (PPM) (BLOWS/F71 o x o- m COLUMN ' M - - - - - - - ASPHALT - with aggregate base rock - - - - - - - - - - - - - - - - - .-. - SAND (SP) - reddish brown fire grained dense moist uniform texture no product ' D D D D D odor 5 III , 1 5/1 5 1 3a - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - SAND (SP) - gray fine to medium grained medium dense no product odor 10 1 5/1 5 1 17 - - _ SAND (SP) --grades sharply at 16 5 to a silt 15 1 5/1 5 IS aB ' - SILT (ML) - slightly mottled brown low plasticity stiff moist slight product odor 1 _ -- _ _ - -- _ _ - - - - - - - - - - - - - - - - - - - - - - 20 / CLAY (CL) - greenish brown (mottled dark 1 5/1 5 As 1e green) stiff low plasticity wet silty some product odor - - SAND (SP) - greenish brown very fine grained dense wet trace of silt no ' - - product odor - - - - - - - - _ - - - - - 25 _ SAND (SP) -- greenish brawn very fine to 1 5/1. 5 3 33 medium grained saturated r Baring drilled to 30 feet sampled to 31 5 / f feet / ' I I 30 E fr I f � 1 5/1 5 111, I) 30 '' REMARKS Boring drilled with continaus-flight hollowstemI' I ' ` a-inch 0 0 augers Boring enlarged with 10-inch 0 0 augers Sampled w/2 1 0 split spoon sampler