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CACSSOCIATES INC. 1111 Lorre Palm Ave.,Slide a Modesto,Conor*95 1 LOG OF BORING S B 10 PROJECT CONTI GROUP LOCATION 1805 HARBOR STREET, STOCKTON CA PROJECT N0. 54.62500.0001 DATE DRILLED 04/20/00 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER RICK 13ERTOLIND METHOD DIRECT PUSH ORE HOLE DIAMETER 1.5 IN DEPTH DRILLED 31 FT DEPTH TO WATER INITIAL 19 FT_ STATIC FL LCASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA DIAMETER --IH_ SLOT SIZE IN INTERVAL FT TO FT ' FILTER PACK TYPE NA INTERVAL FT TO FT i SURFACE SEAL TYPE CEMENT SLURRY INTERVAL FT TO FT COMMENTS: PAGE 1 OF? WELL DEPTH PIDAML I LITHOLOGIC DESCRIPTION r DETAIL FT. PPM BLOWCOUNT LOG 0 - 2" ASPHALT 2 1. 1 L 4 } Lr CL 4 2"-6/9' LEAN CLAY (CL): <15% FINE, POORLY GRADED SAND; >aS% FINES: NO DILATANCY, MEDIUM TOUGHNESS, MEDIUM PLASTICITY, MODERATE 6 BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY--MOIST, WEAK CEMENTATION, HOMOGENOUS i 8 I CG—SBIO-10' 10 SC 6/9-11/14' CLAYEY SAND (SC): >70% FINE, POORLY GRADED SAND; <30% 4 FINES; LOW TOUGHNESS, LOW-MEDIUM PLASTICITY, GRAYISH OLIVE, NO PRODUCT ODOR, NO ORGANICS, MOIST-WET, WEAK CEMENTATION, HOMOGENOUS 12 L —14- 4 44 SM 11/14-16/19"SILTY SAND (SM): <85X FINE, POORLY GRADED SAND; >15X FINES; GRAYISH OLIVE, NO PRODUCT ODOR, WET, WEAK CEMENTATION, 16 HOMOGENOUS 18 � CG—SB10-20' 20 6 j1 S 22 CG-SBIO-W1 i —24- 26 426 SP 16/19-31' POORLY GRADED SAND (SP); <95% FINE-MEDIUM, POORLY GRADED SAND; >5% FINES; GRAYISH OLIVE, NO PRODUCT ODOR, NO ORGANICS, WET, WEAK CEMENTATION, HOMOGENOUS 28 - CG-5810-30' 30 4 CG-SB10-W2 —32- 34 234 {_ L 36 38 j 40