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_ • -HEMA LOG OF WELL MW9 PROJECT CEASE H VPO 'T LOCATION 424 N. VAN BUREN STREET STOCKTON CA 150070.01 DATE DRILLED n Tt as PROJECT N0. • ��/ LOGGED BY ZOIC FRANT7 REVIEWED BY GREG P STAHL RG No. 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER JON SUMP/MOKE LAU METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER 12 IN DEPTH DRILLED A2 FT DEPTH TO WATER INITIAL 27 FT STATIC 26.3 FT CASING TYPE PVC FASO DIAMETER 4 IN SCHEDULE 40 INTERVAL O F7 SCREEN TYPE PVC F480 DIAMETER 4 IN SLOT SIZE 0.020 IN TO 22 FT INTERVAL 22 FT TO 42 FT FILTER PACK TYPE 2/72 SILICA 54N0 INTERVAL 20 FT TO 42 FT SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO 20 FT COMMENTS; 1.2' BENTONITE OVER FILTER PACK PAGE 1 OF-2- WELL DEPTH FID AML I IU.S.C. DETAIL FT. PPM RLOWCOUNT LOG DESCRIPTION 0-47' ASPHALT .— 2 4 11.5/15' SILT; <5% FN, SA—SR, PRLY GROG SND; >95% FNS; L DRY STRNGTH; SLW DLTNCY; M TGHNSS; L—M PLST; HRD; M YLLW BRN; NPO; DRY; STRNG HCL REACTION; STRNG CEMENTATION; HOMO 4 4.2 21 g 50 FOR S' ML — — 8 — 10- 3 4.5 5 _ = 38 71.5/15-16.5/20' LEAN CLAY; <5% FN, SA—SR, PRLY GROG SND; >95% FNS; 12 M—H DRY STRNGTH; N—SLW DLTNCY; M—H TGHNSS; L—M PLST; V STIFF—HRD; NPO; MST; N HCl REACTION; WEAK CEMENT— ATION; HOMO 14 = = 4.2 10 CL 6 19 19 I9 16.5/20-25.2 SANDY SILT; 30% FN, SA—SR, PRLY GROD SND; 70% FNS; L DRY STRNGTH; N—SLW DLTNCY; L TGHNSS; L—M PLST; V STIFF—HRO; M YLLW BRN; NPO; MST; N—WEAK HCL REACTION; WEAK CEMENTATION; HOMO; WEAK GRY CRN MOTTLING 20 6.5 IB 24 22 ML 24 25.2-26.5/27' POORLY GRADED SAND WITH SILT AND CLAY; 90% FN, MW9-25. SA—SR, PRLY GRDD SNO; M DNS—DNS; 10% FNS; DRY GRN/ 5.0 BRN; SL PO; MST; N HCL REACTION; WEAK CEMENTATION; 7 SP— HOMO 26 2 SM/SC 120 a 28 5 9 26.5/27-41' POORLY GRADED SAND; >957. FN—M, SA—SR, PRLY GRDD = MW9-27.5' S.40; L—M DNS; <5% FNS; DRY GRN; SL P0; MST—WET; 30 N HCL REACTION; WEAK CEMENTATION; HOMO; HEAVING SAND 32 34 SP 36 • 38 40