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- PROJECT NUMBER BORING NUMBER <br /> f SF031804.FW MW-DIS-70 SHEET 2 OF 0 <br /> i <br /> r <br /> . SOIL BORING LOG <br /> PROJECT Del Monte - Disco LOCATION Stockton,CA <br /> ELEVATION 20.02 feet TOC DRILLING CONTRACTOR Spectrum Explorations,Inc, <br /> DRILLING METHOD AND EQUIPMENT Mud Rotary <br /> WATER LEVELS 77.05 feet,bgs START 09/10/91 FINISH 08/20/81 LOGGER B. Baumgartner <br /> SAMPLE STANDARD SOIL DESCRIPTION COMMENTS . <br /> (I � <br /> PENETRATION <br /> TEST <br /> ( w J z Cr RESULTS SOIL NAME,USCS GROUP SYMBOL, COLOR, v <br /> _� acc Uj MOISTURE CONTENT,RELATIVE DENSITY o DEPTH OF CASING,DRILLING RAT <br /> W wm o 01 -81-81 OR CONSISTENCY, SOIL STRUCTURE, DRILLING FLUID LOSS <br /> Wk r rD w {N) MINERALOGY }� TESTS AND INSTRUMENTATION <br /> ow z rz Cr rn0 <br /> Depth 28'-34'FINE SAND with SILT and <br /> CLAY (SM/ML);brown, coheslve,moderate <br /> 4.5 plasticity <br /> I, <br /> 34.0 <br /> Depth 34'-40' similar to above (SM/ML) <br /> 3GA <br /> - 4.0 - <br /> {-) <br /> A 40.0 <br /> 40 <br /> Depth 40'-45'FINE SAND with SILT (SN); HNu=Oppm <br /> f unlfarrn sand, brown,low cohesion, <br /> I4 non-plastic <br /> 3.0 {-) <br /> 45.0 45.0 HNu=0,5ppm <br /> Depth 45'-50'FINE SAND with SILT (SM); <br /> brown with black specks and zones of dlificult drilling due to gravels <br /> yellow staining,low cohesion, non-plastic @50'subrounded gravel at <br /> bottom al sampler <br /> f - 2.0 {-) <br /> K0 50.0 <br /> Depth 50'-55'WELL GRADED GRAVEL and <br /> SAND (GW); subrounded,brown with some O"0 <br /> yellow staining,non-cohesive, non-piastic <br /> .".o <br /> - 0.75 - O d <br /> 515.0 depth 55'-80'SAND and SILT with HNu=Oppm <br /> GRAVEL and CLAY (SM); brown,cohesive, <br /> moderate plasticity <br /> - 0.5 - <br /> 4. <br /> 00.0 <br />