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�`��ArVA LOG OF BORING S137 PROJECT STOCKTON/SMITH CANAL LOCATION 2144 FONTANA. STOCKTON CA PROJECT NO_ W0365.02 DATE DRILLED oa 04 93 LOGGED BY TON LUTTERMAN REVIEWED BY GREG P. STAHL RC No. 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER VAN LEONARD METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER 6 IN DEPTH DRILLED 15 FT DEPTH TO WATER INITIAL 15.5 FT STATIC FT _ - CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO El j SCREEN TYPE NA DIAMETER _ IN SLOT SIZE �1L� INTERVAL FT TO FT `. FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NEAT CEMENT OVER 2' OF BENTONITE INTERVAL 0 FT TO 16.5 FT COMMENTS: PAGE I OF? i WELL DEPTH PID SAMPLE ID U.S.C. DESCRIPTION DETAIL FT. (PPM) BLOWCOUNT LOG 0-0.5' ASPHALT r 0.5-3' POORLY GRADED GRAVEL; 10% FN—M, SA—SR. PRLY GRDD SND; 85% FN—M. 2 GP SA—SR, PRLY GROO GRVL; 5% FNS; M URN: NPO; ORGANICS: DRY; N HCL REACTION; WEAK CEMENTATION; HOMO �. .j 4 3—It' POORLY GRADED SAND WITH SILT; 90% FN—M. SA—SR, PRLY GRDD SND; I -1 SSC—S87-5.5' V LS—M DNS; 10% FNS; PALE YLLW URN; NPO; MST; N HCL REACTION; ; I 0.0 ID WEAK CEMENTATION; HOMO 6 10 12 SP—SM F l 10 SSC—S87-110.5' S 1 0.0 2 — 11-15' LEAN CLAY; <10% FN—M. SA—SR, PRLY GRDD SND; >90% FNS: H DRY 12 STRNGTH; N DLTNCY; M TGHNSS; M PLST; V STIFF; DUSKY YLLW URN; NPO; ORGANICS; MST—WET; N HCL REACTION: WEAK CEMENTATION; HOMO; M—STRNG DIESEL ODOR AT 15-16' ! 14 SP—SM 16-16.5' LEAN CLAY WITH SAND; 209. FN—M. PRLY GRDD SNO; 80x FNS; M—H DRY STRNGTH; N—SLW DLTNCY; M TGHNSS; M PLST; M STIFF; LT OLIVE GRY; M—STRNG DIESEL ODOR; WET; N HCL REACTION; WEAK CEMENTATION 2 —16— 85 5 CL 20— I'._j 0l_j 22- -24— D 2 24 D GREGOR P. `JI 28 I STAHL 1 No. 5023 orf OF CAUF�� }. i 32 �. 34 l 36 38 i 40 l