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AWASSOCfATES INC
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<br /> PROJECT DIESEL PERFORMANCE LOCATION 2604 EAST FREMONT STREET, 5TOCKTON,_CA PROJECT NO 54 52577 0001
<br /> DATE DRILLED .1Z/05101 ___ LOGGED BY JOHN SELLMAN REVIEWED BY JEANNE HOMSEY C47410
<br /> DRILLING COMPANY WOODWARD-DRILLING ^, DRILLER YAM I E,ANARD METHOD HOLLOW STEM AUGER
<br /> BORE HOLE DIAMETER a IN DEPTH DRILLED 45 FT DEPTH TO WATER INITIAL — - _ -FT STATIC FT
<br /> CASING TYPE PVC TT DIAMETER 2 IN SCHEDULE 40 INTERVAL O FT TO 25— FT
<br /> SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE 0020 IN INTERVAL 25 FT TO — 45 FT
<br /> FILTER PACK TYPE _RMC LONESTAR--NO 3 _ INTERVAL _ 23 FT TO 45 FT
<br /> SURFACE SEAL TYPE NEAT CEMENT OVERINTERVAL - 0 FT- TO 23_ FT
<br /> COMMENTS PAGE OF—!—
<br /> WE
<br /> F?WELL DEPTH FID SAMPLE ID LITHOLOGIC DESCRIPTION
<br /> DETAIL FT PPM SLOWCOUNT LOG
<br /> 0-2 5' ASPHALT
<br /> 2 CL —25--65/10 INORGANIC CLAY (CL) 100% FINES, MEDIUM DRY STRENGTH,
<br /> MEDIUM TOUGHNESS, MEDIUM PLASTICITY, BROWN,
<br /> NO PRODUCT ODOR, NO ORGANICS. DRY, WEAK CEMENTATION,
<br /> HOMOGENOUS
<br /> 4 <6" LAYER OF COBBLES
<br /> 45 16
<br /> 6 24
<br /> 35
<br /> 8
<br /> TO 45g
<br /> 9 SM 6 5/10'-11 5/15' SILTY SAND (SM) 50% FINE. POORLY GRADED SAND, 20% FINES,
<br /> 1T NO DRY STRENGTH, LOW TOUGHNESS, NO PLASTICITY,
<br /> 12 BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY,
<br /> WEAK CEMENTATION. HOMOGENOUS
<br /> 14
<br /> 16 4 5 10 SP 5 5/10-16 5/20' POORLY GRADED SAND (SP) 100% FINE, POORLY GRADED SAND,
<br /> 11 NO DRY STRENGTH, LOW TOUGHNESS, NO PLASTICITY
<br /> ' BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY,
<br /> WEAK CEMENTATION, HOMOGENOUS
<br /> 18
<br /> 20 45 9 _
<br /> 9 SM
<br /> 11 16 5/20-21 5/25' SANDY SILT (SM) 70X FINE POORLY—GRADED SAND, 30% FINES,
<br /> 22 MEDIUM DENSE SAND COMPACTION, LOW DRY STRENGTH,
<br /> ' LOW TOUGHNESS, NO PLASTICITY, BROWN, NO PRODUCT ODOR,
<br /> NO ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 24
<br /> = 45 9
<br /> zs
<br /> 10 215/25-315/35' POORLY GRADED SAND (SP) 100% FINE. POORLY—GRADED SAND,
<br /> MEDIUM DENSE COMPACTION, NO DRY STRENGTH. BROWNISH
<br /> — YELLOW, LOW TOUGHNESS, NO PLASTICITY, NO PRODUCT ODOR,
<br /> 28 SP NO ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 30 45 5
<br /> 10
<br /> 32
<br /> ' 34
<br /> 45 15
<br /> 36 18 CL
<br /> 21 31 5/35-36 5/40' INORGANIC CLAY (CL) <5% FTNE, POORLY GRADED SAND,
<br /> >95X FINES, MEDIUM DRY STRENGTH, MEDIUM TOUGHNESS, MEDIUM
<br /> PLASTICITY, BROWN. NO PRODUCT DOOR, NO ORGANICS,
<br /> 38 DRY, WEAK CEMENTATION. HOMOGENOUS
<br /> = OL
<br /> 40
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