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ASSOCIATES INC. L
<br /> 1117 Lane Palm Ave,Sure 8,"to,Cafifomio,95351 � LOG OF BORING/WELL M W 7
<br /> PROJECT DIESEL PERFORMANCE LOCATION 2844 EAST FREMONT STREET STOCKTON CA PROJECT N0. 62577.0041
<br /> DATE DRILLED 12/10/01 LOGGED BY JOHN SELLMAN REVIEWED BY JEANNE HOMSEY C47410
<br /> DRILLING COMPANY WOODw RDDRILLING DRILLER VAN LEONARD METHOD HOLLOW STEM AUGER
<br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 65 FT DEPTH TO WATER ; INITIAL 55 FT STATIC 52.38 FT
<br /> CASING TYPE PVC DIAMETER 2 IN SCHEDULE _ 40
<br /> INTERVAL - a FT TO 45 FT
<br /> SCREEN TYPE PVC - DIAMETER 2 IN SLOT SIZE 0.020 IN INTERVAL 45 FT TO 65 FT
<br /> FILTER PACK TYPE INTERVAL —43 Fl TO FEZ
<br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO _ 43 FT
<br /> COMMENTS:
<br /> PAGE 4 OF 2
<br /> WELL DEPTH FID SAMPLE 1D LITHOLOGIC
<br /> DETAIL FT. PPM BLOWCOUNT LOG DESCRIPTION
<br /> 0-2" ASPHALT
<br /> 2
<br /> ML 2"-6.5/10.0' INORGANIC SILT (ML): 100% FINES; MEDIUM DRY STRENGTH,
<br /> 4 LOW TOUGHNESS, NO PLASTICITY, YELLOWISH RED, NO PRODUCT ODOR,
<br /> NO ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> 5.0 i 5
<br /> 6 50
<br /> 8
<br /> 10 34
<br /> 5.5 50 6.5/10.0-16.5/20.0' SILTY SAND (SM): 70% FINE, POORLY GRADED SAND, 30% FINES;
<br /> LOW DRY STRENGTH, LOW TOUGHNESS, NO PLASTICITY,
<br /> 12 YELLOWISH RED, NO PRODUCT ODOR, NO ORGANICS, DRY, WEAK
<br /> CEMENTATION, HOMOGENOUS, CALCITE VEINING
<br /> SM
<br /> 14
<br /> 14
<br /> 16 4.5 25
<br /> 3 NO CALCITE, LENSED SILT
<br /> 18
<br /> 20
<br /> 5.5 t2t
<br /> 2U SP 16.5/20.0-26.5/30.0' POORLY GRADED SAND (SP): 100% FINE, POORLY GRADED
<br /> SAND; YELLOWISH RED, NO PRODUCT ODOR, NO ORGANICS
<br /> 22 20 DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 24 \
<br /> 10 SP BROWN, MOIST, MEDIUM CEMENTATION
<br /> 26 4.5 12
<br /> 18
<br /> 28-
<br /> -30— MW7-30.5'
<br /> 18 ML 26.5/30.0-31.5/35.0' INORGANIC SILT (ML): <100% FINES; LOW DRY STRENGTH, LOW
<br /> 7.0 30 TOUGHNESS, NO PLASTICITY, YELLOWISH RED, NO PRODUCT ODOR,
<br /> 32 NOORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> 34
<br /> 4.5 50 CL 35.5-36.5/40.0' INORGANIC SILTY CLAY (CL): 100% FINES; MEDIUM DRY STRENGTH,
<br /> 36 MEDIUM TOUGHNESS, LOW PLASTICITY, BROWN, NO PRODUCT ODOR,
<br /> NO ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> —38-
<br /> 40—
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