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Y <br /> LOG OF BORING SB4 <br /> PROJECT SEGALLI BUILDING LOCATION 200 WEST HARDING WAY, STOCKTON CA <br /> DATE DRILLED ?A112/93 LOGGED BY TOM LUTTERMANREVIEWED BY GREG P. STAHL <br /> PROJECT NO. 150052.01 <br /> DRILLING COMPANY WESTEx DRILLER MARK DOCKRFY METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER _ 6 IN DEPTH DRILLED 34.5 FT DEPTH TO WATER : INITIAL FT STATIC FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE <br /> INTERVAL , FL TO F1 <br /> SCREEN TYPE NA DIAMETER: Ilv SLOT SIZE IN <br /> INTERVAL _ FT TO FT <br /> FILTER PACK TYPE NA INTERVAL FT TO FT <br /> SURFACE SEAL TYPE NAT CEMENT INTERVAL 0 FT TO 34.5 FT <br /> COMMENTS: 45'ANGLE TO VERTICAL PAGE—L OF <br /> WELL DEPTH PID 5AMPLL 10 U.S.C. DESCRIPTION y <br /> DETAIL FT. PPM r BLOWCOUNT LOG <br /> 0-3" ASPHALT <br /> r <br /> 2 GA 3"-3' POORLY GRADED GRAVEL WITH SAND; 15% FN-M, SA-SR, PRLY <br /> GRDD SNO; 80% FN, SA-SR. PRLY GRDD GRVL. 5% FNS; <br /> 'PALE YLW SRN; DRY;:HOMO <br /> 4 3-10/15' SANDY CLAY; 607 FN, PRLY GRDD SND; 40% FNS; M-H DRY <br /> STRNGTH; N DLTNCY; L TGHNSS; M PLST; M BRN; NPO; MST; <br /> WEAK HCL REACTION; WEAK CEMENTATION; HOMO <br /> 6 <br /> Sc y <br /> ,fl <br /> 8 h <br /> —10- <br /> 10/15-15/20.5' <br /> 010/15-15/20.5' LEAN CLAY; <I57 FN, PRLY GRDD SND: >85% FNS; H DRY <br /> 12 STRNGTH; N DLTNCY; L TGHNSS; M PLST; M BRN; NPO: MST; <br /> WEAK HCL REACTION; WEAK CEMENTATION; HOMO <br /> —14— <br /> CL <br /> 4CL <br /> 16 <br /> 15/20,5-22/25' SILTY SAND; 857 FN-M, PRLY GRDD SND; 15% FNS; LT BRN; NPD; <br /> 18 <br /> MST; N HCL REACTION; WEAK CEMENTATION; HOMO <br /> ` <br /> 99r <br /> 20 S13--SB4-21' F <br /> 45 SM <br /> 50 F <br /> 22 50 I <br /> I <br /> 24 22/25-30/34.5' LEAN CLAY; <107 FN,.PRLY GRDD SND; >90% FNS; H DRY <br /> STRNGTH; N DLTNCY; L TGHNSS; M PLST; M BRN; NPO;.MST; <br /> WEAK.HCL REACTION; WEAK CEMENTATION; HOMO <br /> —26- <br /> 28 <br /> 628 CL <br /> 30 <br /> 32 30/34.5-36' ELASTIC SILT WITH SAND; 15% FN-M, PRLY GRDD SND; 857 FNS; <br /> M DRY STRNGTH; N-SLW DLTNCY; L TGHNSS; L PLST; M BRN/LT <br /> BRN; NPO; DRY-MST; N-WEAK HCL REACTION; WEAK CEMENTATION; <br /> MOTTLED <br /> 34 SB-SB4-35' <br /> /MH <br /> 47 <br /> 47 <br /> 36 50 <br /> 38- <br /> 40- <br /> ' <br /> ,. j <br />