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LOG OF WELL MW6 PROJECT STOCKTON/SMITH CANAL LOCATION 2144 FONTANA, STOCKTON CA PROJECT NO, W0365.02 DATE DRILLED 08/05/93 LOGGED BY TOM LUTTFRMAN REVIEWED BY GREG P. STAHL RC No. 5023 SPECTRUM EXPLORATION VAN LEONARD DRILLING COMPANY DRILLER METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER 10 IN DEPTH DRILLED 30 FT DEPTH TO WATER INITIAL 16 FT STATIC 15.5 F CASING TYPE PVC F480 DIAMETER 4. IN SCHEDULE 40 INTERVAL D FT TO 9.5 FT SCREEN TYPE PVC F480 DIAMETER _ 4 IN SLOT SIZE 0.010 IN INTERVAL 9.5 FT TO 29.5 FT FILTER PACK TYPE RMC LONESTAR #2/12 SAND INTERVAL 7.5 FT TO 30.0 FT SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL D FT TO 7.5 FT COMMENTS: PAGE I OF i WELL DEPTH PID SAMPLE ID U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-0.4' ASPHALT k r: GP 0.4-3' POORLY GRADED GRAVEL; 107. FN-M, SA-SR, PRLY GRDD 2 SND; 857. FN-M, SA-SR, PRLY GRDD GRVL; 5% FNS; M BRN; NPO; DRY; N HCL REACTION; WEAK CEMENTATION; HOMO : j 4 3-15.5/20' LEAN CLAY; <10% FN, PRLY GRDD SND; >90% FNS; H DRY 0.0 5 STRNGTH; N DLTNCY; M TGHNSS; H PLST; STIFF; DUSKY YLLW 6 BRN; NPO; MST; N HCL REACTION; WEAK CEMENTATION; HOMO ` 7 8 =� CL �. SSC-MW6-16.5'10 4 O,O 4 12 SSC-MW6-14.5' 14 2 10 7 16 ft°"a 15.5/20-21.5/25' SILTY SAND; 85% FN, PRLY GRDD SND: M DNS; 15% FNS; %� 18 DUSKY YLLW BRN; NPO; WET; N HCL REACTION; WEAK F� CEMENTATION; HOMO 20 6 0.0 6 SM 8 22 21.5/25-26' POORLY GRADED SAND; >95% FN-M, SA-SR, PRLY GRDD SND; M DNS; <5% FNS; DUSKY YLLW EIRN; NPO; WET; N HCL II REACTION; WEAK CEMENTATION; HOMO i 24 9 SP 10 —26—26 0.0 F 6 26-26.5/30' WELL GRADED SAND; >90% FN--CRS; SA-SR, W GRDD SND; Lr SW M DNS; <10% FNS; DUSKY YLLW BRN; NPO; WET; N HCL REACTION; WEAK CEMENTATION; HOMO 28 26.5/30-31.5' SILTY SAND; 65% FN-CRS; SA-SR, W GRDD SND; M DNS; 15% FNS; DUSKY YLLW BRN; NPO; WET; N HCL REACTION; .'1. WEAK CEMENTATION; HOMO 30 0.0 7 SM co 32 �!tii/� OrC7 0 c 'L'-12r -o a 34 r -- Y P. Fj JFAHL a. '5023 36- 38— OF CAUI kr'i 4a i.