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10 010 6/24 Sample Son Bkg 236 4 6 SOIL BORING SJA—SB3 -W w ; LU a Ill Z �� o w� Z 15 LO J 202 6 6 z Sand content Increases 16 0 F DRILLING REMARKS o E o FIELD GEOLOGIST RD, Smith DATE BEGAN 1/3/96 _ ¢ > O o � Ir CHECKED BY R mi DATE FINISHED 1/,3/96 n w a m �` a APPROVED BY TR R 7- 20 915 SURFACE ELEV3ft � sm 20 12- Sample Son Bkg 219 fi 3 TOTAL DEPTH 600 ft � Sit content decreases 200 ata 24/24 � poorly Graded SAND pale yellowish brown moist soft 957E Me to medium micaeous sand 5% silt I T sp CLAY MM SILT variegated pole yetlowish brown and dark yellowish brown 25 NSA Sample Sol Sample handpacked Bkg 18.0 250 o25 slightly moist, medium stiff medium to high plasticity 90% day 107E slit. 3 5 Well–Graded SAND variegated moist dense 99% fine to coaxes sand 1R out Slit content decreases color changes to graylsh block organic remains sw 30 present. $ Sample Sample handpicked San Bkg 207 4 0 030 ci sm 10 010 6/24 Sample Son Bkg 236 4 6 SILT 'MITN CLAY moderate yellowish brawn slightly malst stiff- low plasticity 90% sot 10% lean clay mi 15 Sample Sod Bkg 202 6 6 Sand content Increases 16 0 015 24/24 SILTY SAND moderate yellowish brown slightly moist medium dense- 70% well–graded sand 30% sit sm 20 Sample Son Bkg 219 fi 3 Sit content decreases 200 ata 24/24 � poorly Graded SAND pale yellowish brown moist soft 957E Me to medium micaeous sand 5% silt sp 25 NSA Sample Sol Sample handpacked Bkg 18.0 250 o25 e/24 3 5 Well–Graded SAND variegated moist dense 99% fine to coaxes sand 1R out sw 30 Sample Sample handpicked San Bkg 207 4 0 030 6/24 sm SILTY SAND dark yellowish brain moist medium dense- 55% fine to coorse sand 45% sit low plasticity Sand content decreases 340' on 22/24 ml SILT dark yellowish brown moist, medium stiff- low Plasticity 90% silt 57: Me sand 5X lean clay 35 Sample Sol Bkg 230 2 5 Sand content decreases 39 0 OW 22/34 cl CLAY dark yellowish brown moist stiff, low to medium plasticity 65% lean day 35% sot 40 Sample Son Bkg 259 4 7 44 046 22/24 am SILT WITH SAND pale yellowish brown slightly moist medium stiff low plasiclty- 80% sdt 20% fine micocema sand iron oxide staining organic emains present 445 45 Sample Solt Bkg 21 0 6 1 SILTY SAND pole yellowish brown moral, medium dense- 65X fine sand 35% adt 49 0 ase 14/34 sp poorly GrOded SAND pole yenowlsh brown moist soft 95% flue mrcoceous sand 5X sdt, low plasticity — 51 --------......_--- 50 Sample Sol Bkg 25 2 38 Slight hydrocarbon odor detected in groundwater samples Push probe to 60 ft 55 s First encountered groundwater at 55 ft 6 0 Groundwater sample at 60 ft TOTAL DEPTH 600 FEET F65 70 DRILLER Chuck Gernsh DRILLING CO Vlronex DRILLING METHOD Geoprobe SAMPLING METHOD Large Bore Sample PROJECT NAME Stockton Metropolitan Airport Aviation Fuel Storage Area LOCATION Stockton Metropolitan Airport California PROJECT NO 765436 DRAWN BY1 LR K ICHECKIZD BY L DATE 1-30-96 APPROVED BY FILE NAME & DISK NUMBER SJA–SB3(SJC2) PAGE 1 OF 1 ®INTERNATIONAL TECHNOLOGY CORPORATION