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ASSOCIATES INC.
<br /> 1260 Graphics(hive,Modesto,California,95351 LOG OF BORING S B 4
<br /> PROJECT PITTS PROPERTY LOCATION 203 SOUTH LINCOLN STREET, MANTECA, ,CA PROJECT NO. 90954.0003
<br /> I DATE DRILLED 10/29/97 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410
<br /> DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER DAVID FISCH METHOD DIRECT PUSH k
<br /> BORE HOLE DIAMETER 1.5 IN DEPTH DRILLED 24 FT DEPTH TO WATER INITIAL -1 9
<br /> 19 FT STATIC FT
<br /> I CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT i
<br /> I SCREEN TYPE NA DIAMETER IN SLOT SIZE j IN INTERVAL FT TO FT
<br /> FILTER PACK TYPE NA INTERVAL FT TO FT
<br /> I SURFACE SEAL TYPE NEAT CEMENTINTERVAL 0 FT TO 26 FT
<br /> COMMENTS: PHOTO IONIZATION DETECTION (PID) METER BACKGROUND READINGS 0-3 PPMii PAGE 1 OF 1
<br /> j WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION
<br /> DETAIL FT. PPM BLOWCOUNT LOG
<br /> �1
<br /> 2
<br /> ML
<br /> I 1,
<br /> I 4
<br /> 3.6 0-6/9' SANDY SILT (ML): 407 FINE-MEDIUM, POORLY GRADED SAND; 60%
<br /> FINES, NO-LOW PLASTICITY, DARK YELLOW BROWN, NO PRODUCT i
<br />( i 6 ODOR, DRY, WEAK CEMENTATION, HOMOGENOUS 1€
<br /> i
<br /> 8 ,
<br /> i4
<br /> it
<br /> I 10 3 6 SP 6/9-11/14' POORLY GRADED SAND (SP): >95% FINE-MEDIUM, POORLY GRADED
<br /> SAND; <5% FINES, PALE YELLOW BROWN, NO PRODUCT ODOR, DRY,
<br /> f WEAK CEMENTATION, HOMOGENOUS
<br /> j12
<br /> 14 PP-SB4-15.0'
<br /> SW 11/14-16/19' WELL GRADED SAND (SW): >95% FINE-COURSE, SUBANGULAR-
<br /> 3.6 SUBROUNDED;; WELL GRADED SAND; <57 FINES, NO PRODUCT ODOR,
<br /> 16 DRY, WEAK CEMENTATION, HOMOGENOUS
<br /> 18
<br /> 16/19-21/24' POORLY GRADED SAND (SP): >95% FINE-MEDIUM, POORLY GRADED
<br /> 20 1 SP SAND; <57 FINES, PALE YELLOW BROWN, NO PRODUCT ODOR, WET,
<br /> HOMOGENOUS
<br /> i
<br /> -22-
<br /> 21/24-25' SILT (ML): iZS% FINE, POORLY GRADED SAND; >95% FINES, LOW-
<br /> MEDIUM TOUGHNESS,;!LOW-MEDIUM PLASTICITY, MODERATE YELLOW
<br /> 24 PP-SB4-25.0' BROWN, NO=SLIGHT PRODUCT ODOR, MOIST-WET, WEAK CEMENTATION,
<br /> ML HOMOGENOUS
<br /> i
<br /> i
<br /> 1 1 �
<br /> CL 25-26' LEAN CLAY (CL): <S% FINE, POORLY GRADED SAND; >95% FINES,
<br /> 26 HIGH DRY STRENGTH: NO DILATANCY, MEDIUM-HIGH TOUGHNESS,
<br /> MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR,
<br />' ORGANICS, DIIRY-MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> ' 28
<br /> i
<br /> 30
<br /> I � I
<br /> j 32
<br /> 34
<br /> -36-
<br /> 38
<br /> 3638
<br /> 40
<br /> j'
<br />
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