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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'm 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 a`m� 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 /> LEAN CLAY(CL),light olive brown,soft to medium stiff, <br /> wet,low plasticity,0-5%fine-grained sand,contains silt 10 96 0.5* PP <br /> 31 93 528 UU <br /> -5 <br /> ----------------------- <br /> SANDY LEAN CLAY(CL),dark yellowish brown,medium <br /> dense,wet,low plasticity,40-45%medium-to fine-grained <br /> 25 sand <br /> 27 <br /> 56 21 109 <br /> ------------------------ <br /> POORLY GRADED SAND(SP),dark yellowish brown <br /> medium dense,wet,fine-grained sand,<5%fines <br /> -10 <br /> N <br /> O <br /> M <br /> 30 <br /> 0 <br /> c� <br /> U 28 <br /> z_ <br /> 0 <br /> W <br /> cD <br /> z <br /> W <br /> a End of boring at approximately 31 1/2 feet below ground <br /> 0 surface.Groundwater encountered at approximately 8 feet <br /> m at time of drilling. <br /> a <br /> o' <br /> 0 <br /> m <br /> 0 <br /> 0 <br /> J <br /> W <br /> O <br /> UI <br /> 0 <br /> U <br /> z <br /> 2 <br /> U <br /> W <br /> O <br /> W <br /> O <br /> J <br />