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!i1\IrASSOCIATES INC. 1250 0*uodm4 Cab*01 LOG O F BORING S B7 PROJECT SUSO CORPORATION YARD LOCATION 1932 NORTH EL PINAL DRIVE, STOCKTON,CALIFORNIA PROJECT NO. 17292.0004 �+ DATE DRILLED 02/23/99 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY 047410 \,..,)RILLING COMPANY V&W DRILLING DRILLER RICK BARRAGAN METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER B IN DEPTH DRILLED 36.5FT DEPTH TO WATER : INITIAL FT STATIC _ FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL ET TO — FT a" SCREEN TYPE NA DIAMETER ILL SLOT SIZE IN INTERVAL -1 TO - FT FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO 36.5 FT. COMMENTS: PAGE i OF—L WELL DEPTH PID SAMPLE 10 LITHOLOGIC DESCRIPTION ' DETAIL FT. PPM BLOWCOUNT LOG 0-2" ASPHALT a.. 2 4 to 6 3.5 13 t3 2"-11.5/15' LEAN CLAY (CL): <15% FINE, POORLY GRADED SAND; >BSX FINES: y CL MEDIUM-HIGH DRY STRENGTH, NO DILATANCY, MEDIUM TOUGHNESS, MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, 8 NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS 9 3.5 a 12 —12- -14- 3.5 2 143.5 17 SP 22 11.5/15-16.5/20- POORLY GRADED SAND (SP): 95X FINE-MEDIUM, POORLY GRADED SAND; 5% FINES; MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS CY-S97-20.5 20 14 3.5 it 2� SP 16.5/20-21.5-25' POORLY GRADED SAND (SP): >75% FINE-MEDIUM. POORLY GRADED 22 SAND; 209 GRAVEL; <5X FINES: MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS —24- 23 26 3.5 43 5W 34 21.5/25-26.5/30' WELL GRADED SAND WITH GRAVEL (SW): >75X FINE-COARSE, WELL GRADED SAND; 20% GRAVEL; <5X FINES; MODERATE YELLOW BROWN, NO PRODUCT ODOR. NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, 28 HOMOGENOUS i.r 30 1 20 GM 3,5 35 26.5/30-31.5/35' SILTY GRAVEL WITH SAND (GM): 25% FINE--COARSE. WELL GRADED 32 SAND; 6OX FINE-COARSE. WELL GRADED GRAVEL; 15X FINES: PALE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS 34 cY-SB7-a53 µH 31.5/35-36.5' ELASTIC SILT WITH SANG (MH): 15X FINE. POORLY GRADED SAND; 38 26 55% FINES; NONE-SLOW DILATANCY, LOW TOUGHNESS, NONE-LOW 3.5 PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS. MOIST, WEAK CEMENTATION. HOMOGENOUS 38 T140 a..