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LOG OF EXPLORATORY BORING <br /> PROJECT'.NUMBER C42-01.10 <br /> PROJECT NAMEPort of Stockton BORING NO. PS/WC-2M <br /> BY M. Capps DA'T'E 7/23/92 PAGE 1OF2 <br /> SURFACE ELEV. 2.4 ft. <br /> RECOVERY Pro <br /> J T Li LL2:f0- <br /> J GRAPHIC WELL <br /> (ft/ft (PPM) <br /> .W.I R COLUMN CESCRSFTION 0 TAIL <br /> y <br /> Fes-,SII TY GRAVELLY SAND,gray brown <br /> I OYR,5/2); 20%low plasticity fines; 50%sand. <br /> :0%gravel;dry. <br /> SANDY CLAY(M'very dark gray 00YR,3/1), <br /> -0-75%high plasticity fines; 25-30% fine sand; <br /> 5 iron and manganese staining;rootlets;stiff.dry. <br /> @ 4.2': gray brown(2.5Y,5/2),90%high <br /> Plasticity fines; 10% fine sand;moist. <br /> SILTY SAND(ShO,olive brown(2.5Y,4/3); 15% <br /> low plasticity fines;85%fine Sand,moist. <br /> SANDY CLAY(CL),gray brown(2:5Y,5/2).85% <br /> low plasticity fines; 15% fine sand; iron and <br /> manganese staining;moist. <br /> @ 8.3':caliche nodules. <br /> C 9': 35-40% fine to medium sand: faint <br /> 10 hydrocarbon odor. <br /> CLAYEY SAND TO SAND(SC-SP),dark gray <br /> brown(2.5Y,4/2); 10%low plasticity fines; 90%m <br /> fine to medium sand,moist. <br /> @ 12':faint to moderate hydrocarbon Ydrocarbott odor. <br /> CLAYEY SAND(SC);35%low plasticity fines; 50% <br /> fine sand; 15%medium sand;iron and manganese <br /> I oxide staining; moist. <br /> 7-24-92 C 13': 15%m low plasticity fines;60%fine sand <br /> 15 and 25%medium sand. <br /> SANDY CLAY(CII 60%high plasticity fines:40% <br /> fine to medium sand;moist. <br /> CLAYEY SAND(SC),dark yellowish brown(1 OYR, <br /> 4/6);25%high plasticity fines; 75%fine to <br /> medium Sad:Pully lithified with calcium <br /> carbonate cement; iron oxide stained laminae; <br /> wet;no hydrocarbon odor. <br /> SAND(SC-M,dark gray brown(2.5Y,4/2); 5.10% <br /> 20 low plasticity fines;90-95%m fine to medium sand, <br /> REivuxxs <br /> See ExPlana"m of Symbols.Boring was drilled using 8-and 12-inch diameter,continuous-flight,houow-stem auger <br /> daing egwpmene Boring was sampled using a 2-inch diameter,wire-line conveyed,split-barrel continuous sampler. <br /> E%NSee Web Details for weu comEmcuou information. <br /> E N <br /> ASSCC'A^^5 <br />