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�. AU ASSOCfATES INC. 12M D000 0*Yo&k C&*mi LOG OF BORING SB2 PROJECT ROYAL OAKS PUMP STATION LOCATION ROYAL PARK LANE d: PRINCESS DRIVE, STOCKTON, CA PROJECT N0. 62574.0006 DATE DRILLED 05/04/99 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 it DRILLING COMPANY M51 HAZMAT DRILLER RQBERT 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 i+ FILTER PACK TYPE NA ,_.. INTERVAL FT TO FT SURFACE SEAL TYPE NEAT_CEMEST INTERVAL 0 FT TO 41.5 FT COMMENTS: PAGE 1 OF—L A'' WELL DETAIL (FT.) OVA SAMPLL ID PPM BLOWCOUNT HLOG I DESCRIPTION 2 4 Lr 7 6 2.5 7 .d 0-16' ELASTIC SILT WITH SAND (MH): 20X FINE-MEDIUM, POORLY GRADED it 6 MH SAND; SOX FINES; NONE-SLOW DILATANCY, LOW-MEOIUM TOUGHNESS, LOW-MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS. ORY-MOIST, WEAK CEMENTATION, HOMOGENOUS SO tt i.r 2.5 12 t� 12 +L+ 14 Yd 16 2.5 14 tp 16-16.5/20' WELL GRADED SAND (SW): 95X FINE-COARSE, WELL GRADED SAND; 'SW 5X FINES; MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS ]8 20 2.5 t4 tp 21 ML 16.5/20-21.5/25' SILTY SAND (ML): 70% FINE, POORLY GRADED SAND; 3OX FINES; 22 LOW TOUGHNESS, NONE-LOW PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS 24 � s 25 2.5 td 22 —28- 30— a to CL 11.4 2.5 21 21.5/25-41.5' LEAN CLAY (CL): <15% FINE, POORLY GRADED SAND; >a5X FINES; 32 MEDIUM-HIGH DRY STRENGTH, NO OILATANCY, MEDIUM TOUGHNESS, LOW-MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, MOIST-WET, WEAK CEMENTATION, HOMOGEOUS —34— *0-S82-33.5 tt 36 15 2.5 26 V Lmp 38 40 Ito-30e-40.5 17 to 2.5 22 42 i,r