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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER C42-01.10 BORING NO. PS/WC-2S <br /> PROJECT NAME Port of Stockton PAGE 1 OF 2 <br /> BY M. Capps DATE 7/22192 SURFACE ELEV. 2.6 ft. <br /> RECOVERY PID 0 LITHO- WELL <br /> J k W <br /> W JJ GRAPHIC DESCRIPTION DETAIL <br /> Q.2w ¢ COLUMN <br /> (ft/ft) (PPM) U'3J N <br /> 2.1/5.0 FILL,SILTY GRAVELLY SAND,gray brown <br /> (10YR,5/2);20% low plasticity fines; 50%sand; <br /> 30%gravel; dry. <br /> SANDY CLAY(CII),very dark gray(10YR,3/1), <br /> 70-75%high plasticity fines;25-30%fine sand; <br /> iron and manganese staining;rootlets;stiff; dry. <br /> 3.4/5.0 1.3 5 @ 4.2': gray brown(2.5Y,5/2),90%high <br /> plasticity fines; 10%fine sand;moist. <br /> SILTY SAND(SM),olive brown (2.5Y,4/3); 15% <br /> low plasticity fines;85%fine sand,moist. <br /> 1.3 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 /> @ 9': 35-40%fine to medium sand; faint <br /> 4.3/5.0 63 7-24-9210 hydrocarbon odor. <br /> 1 € CLAYEY SAND TO SAND(SC-SP),dark gray <br /> brown(2.5Y,4/2); 10%low plasticity fines;90% <br /> fine to medium sand,moist. <br /> 15 SZ @ 12': faint to moderate hydrocarbon odor. <br /> 7-23-92 CLAYEY SAND(SC); 35%low plasticity fines; 50% <br /> fine sand; 15%medium sand; iron and manganese <br /> oxide staining;moist. <br /> @ 13': 15% low plasticity fines; 60% fine sand <br /> 3.0/5.0 6.5 15 and 2590 medium sand. <br /> SANDY CLAY(CI),60%high plasticity fines;40% <br /> fine to medium sand; moist. <br /> CLAYEY SAND(SC),dark yellowish brown(IOYR, <br /> 6.1 4/6); 25%high plasticity fines; 75% fine to <br /> medium sand;partially lithified with calcium <br /> carbonate cement;iron oxide stained laminae; <br /> wet; no hydrocarbon odor. <br /> SAND(SC-SP),dark gray brown(2.5Y,4/2); 5-10% <br /> 0.0 low plasticity fines;90-95%fine to medium sand, <br /> 20 <br /> REMARKS <br /> See Explanation of Symbols.Boring was drilled using 8-inch diameter,continuous-flight,hollow-stem auger drilling <br /> equipment.Boring was sampled using a 2-inch diameter,wire-line conveyed,split-barrel continuous sampler.See Well <br /> EONDetailsfor well construction information. <br /> E N <br /> ASSOCIATES <br />