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ENGEO LOG OF BORING 4-1301 <br /> Expect Excellence LATITUDE: 37.769834 LONGITUDE: -121.421621 <br /> Geotechnical Exploration DATE DRILLED: 10/21/2021 LOGGED/REVIEWED BY: L.Becker/ZAC <br /> Holly Buildings H & I HOLE DEPTH: Approx.31'/2 ft. DRILLING CONTRACTOR: West Coast Exploration <br /> Tracy, California HOLE DIAMETER: 4.0 in. DRILLING METHOD: Solid Flight Auger <br /> 15188.000.006 SURF ELEV(NAVD88): Approx.18 ft. HAMMER TYPE: 140 Ib.Rope and Cathead <br /> Atterberg Limits <br /> N 0 <br /> w <br /> v o u c �� to <br /> a) 0 axi C' Q) H <br /> LL CL DESCRIPTION o �, �It o 0 a, �'X <br /> c p T J U J U ,U U.N 3 .� w Q <br /> ti m <br /> n m E 3 N N a n-0 ami a 0:2 <br /> a) a) a5 O a5 a5 C o O o U L L C m <br /> ❑ W (n J > m J LL LL LL ❑�' (n (n <br /> _AGGREGATE BASE(AB) ------------- <br /> CLAYEY SAND(SC),dark grayish brown,medium dense, <br /> moist,medium-to fine-grained sand,30-40%fines <br /> [UNDOCUMETED FILL] <br /> 27 <br /> LEAN CLAY(CL),light olive brown,stiff to very stiff, 35 13 22 2.75* PP <br /> moist,medium plasticity,5-10%fine-grained sand, <br /> contains silt[NATIVE] <br /> 15 Contains thin lense of dark yellowish brown silt 14 <br /> 5 <br /> 3.5* PP <br /> 24 <br /> 95 26 98 1.6 UC <br /> ----------------------- <br /> SANDY LEAN CLAY(CL),light olive brown,very stiff,wet, <br /> low plasticity,40-50%fine-grained sand <br /> 10 _V <br /> N <br /> O <br /> M <br /> 10 <br /> 22 104 2.25* PP <br /> 34 <br /> z 55 3.0* PP <br /> 0 <br /> LUz <br /> W <br /> 0 <br /> N <br /> m 5 <br /> a <br /> o' <br /> 0 <br /> m <br /> 15 <br /> 0 <br /> g 56 <br /> Grades to medium stiff 11 <br /> °2 35 91 818 UU <br /> J <br /> W <br /> C O <br /> LEAN CLAY(CL),light olive brown,soft to medium stiff, <br /> Q' wet,low plasticity,0-5%fine-grained sand,contains silt <br /> U <br /> z <br /> 0 <br /> U <br /> W <br /> 0 <br /> 0 20 <br /> U <br /> U <br /> 0 <br /> J <br />