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A ASSOCIATES INC. 1260 Q*Dili WdesIA Co ff*MI LOG OF BORING SB3 PROJECT ROYAL OAKS PUMP STATION LOCATION ROYAL PARK LANE k PRINCESS DRIVE, STOCKTON, CA PROJECT NO. 62574.0005 DATE DRILLED 05/05/99 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 i.d DRILLING COMPANY WEST HAZMAT DRILLER ROBERT LEININGER METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER a IN DEPTH DRILLED 41.5FT DEPTH TO WATER : INITIAL 35' FT STATIC FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA_ DIAMETER IN SLOT SiZE ._ IN INTERVAL FT TO FT 4 FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO FEZ COMMENTS: PAGE I OF___L WELL DEPTH A SAMPLE 10 LITHOLOGICDESCRIPTION +-+ DETAIL FT. PPM BLOWCOUNT LOG 2 0-6.5/10' SILT WITH SAND (ML): 20X FINE, POORLY GRADED SAND: BOX FINES; 4 ML LOW TOUGHNESS, NONE-LOW PLASTICITY, DARK YELLOWISH BROWN, NO PRODUCT ODOR, ORGANICS, DRY-MOIST, WEAK CEMENTATION, 6r ` HOMOGENOUS 6 2.5 a tl Lw 8 10 t° 1r 2.5 tt 1e —12— L.8 —14- 6.5/10-21.5/25- ELASTIC SILT WITH SAND (MH): 20X FINE, POORLY GRADED SAND; MH BOX FINES; NONE—SLOW DILATANCY, LOW TOUGHNESS, LOW—MEDIUM PLASTICITY, DARK YELLOWISH BROWN, NO PRODUCT ODOR, 16DRY—MOIST, WEAK CEMENTATION, HOMOGENOUS i.a NO SAMPLE RECOVERY AT 15' (UTILITY) 18 Itr 20 z.s 15 t>• 17 22 24 tt� tt 2fi 2.5 13 is 23— _30- 3 830 3 12 CL 20 21.5/25-41.5' LEAN CLAY (CL): <15X FINE, POORLY GRADED SAND; >85% FINES; 32 MEDIUM—HIGH DRY STRENGTH, NO DILATANCY, LOW—MEDIUM TOUGHNESS, LOW—MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY—WET, WEAK CEMENTATION, HOMOGEOUS La 34 RO-SB3-35.5 3 36 3 s so iV 38 tl.r 40 RO-5e3-40.5 B 3 7 2° 42 V