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AWCASSOCIATES INC.
<br /> 1260 Gmpk Dlire,YoLlLsto,Cdoma,95351 LOG OF WELL M W 1
<br /> PROJECT VAN DYKEN PROPERTY LOCATION 215 WEST MAIN STREET. RIPON, CA PROJECT NO. 149J�1 001
<br /> DATE DRILLED 021899 LOGGED BY TOM tUTTFRMAN REVIEWED BY JEANNEH{QMSEY ('47410
<br /> DRILLING COMPANYy W DRILLING INC. DRILLER RICK BARRAGAN METHOD HOLLOW STEM AUGER
<br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 41 FT DEPTH TO WATER : INITIAL 27 FT STATIC ? FT
<br /> CASING TYPE PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 20 FT
<br /> SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE 0.020 IN INTERVAL 20 FT TO 40 FT
<br /> FILTER PACK TYPE RMC IONFSTAR #3 INTERVAL 18 FT TO 40 FT
<br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 18 FT
<br /> COMMENTS: SURGE BLOCKED WELL PRIOR TO PLACING TRANSITIONAL SEAL PAGE 1 OF__L_
<br /> WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION
<br /> DETAIL (FT.) PPM BLOWCOUNT LOG
<br /> 0-2" — Asphalt
<br /> 2
<br /> 4
<br /> SM 2"-6.5/10' SILTY SAND (SM): <85% FINE-MEDIUM, POORLY GRADED SAND;
<br /> >15% FINES, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO
<br /> 6 3.5 ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 8 \
<br /> 10 4
<br /> 3.5
<br /> 7
<br /> 7
<br /> 12
<br /> SP 6.5/10-16.5/20' POORLY GRADED SAND (SP): >95% FINE-MEDIUM, POORLY GRADED
<br /> 14 SAND; <5% FINES; MODERATE YELLOW BROWN, NO PRODUCT
<br /> 8 ODOR, NO ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 16 3.5 9
<br /> 13
<br /> 18
<br /> 20—•r _ %r 3.5 1� 16.5/20-21.5/25' CLAYEY SAND (SC): 70% FINE-MEDIUM, POORLY GRADED SAND;
<br /> 22 SO 30% FINES; MODERATE YELLOW BROWN, NO PRODUCT ODOR,
<br /> —r:•'< 22 NO ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> 24
<br /> 10
<br /> 26 1y CL S
<br /> 21.5/25-26.5/30' LEAN CLAY WITH SAND (CL): <15% FINE-MEDIUM, POORLY GRADED
<br /> 28 SAND; >859 FINES; NO DILATANCY, LOW-MEDIUM TOUGHNESS,
<br /> MEDIUM PLASTICITY, LIGHT GRAY, SLIGHT PRODUCT ODOR, NO
<br /> `='•__ '
<br /> NSI-MW7-30.5 ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> 30
<br /> 100
<br /> 15
<br /> 25
<br /> 32
<br /> 26.5/30-36/40WELL GRADED SAND (SW): 959 FINE-COARSE, WELL GRADED SAND;
<br /> = 5% FINES; MEDIUM GRAY, MODERATE PRODUCT ODOR, NO ORGANICS,
<br /> ;,�_,• 34 SW WET, WEAK CEMENTATION, HOMOGENOUS
<br /> 4'
<br /> A. = 30 29
<br /> 36 55
<br /> 38
<br /> _ 36/40-41' LEAN CLAY (CL): <15% FINE, POORLY GRADED SAND; >85%
<br /> 40 4.5 CL FINES; NO DILATANCY, MEDIUM TOUGHNESS, MEDIUM PLASTICITY,
<br /> 35 MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS,
<br /> 50
<br /> MOIST-WET, WEAK CEMENTATION, HOMOGENOUS
<br /> 42
<br />
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