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LOG OF WELL MW9 ' PROJECT sjjAsr cHrvEQirT- LOCATION 42d_N VANBU_REN STREET, STOCKTON CA PROJECT NO 15007001 DATE DRILLED LOGGED BY Intl; ERANT7 REVIEWED BY GREG P STAHL RG No 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER JON SUMP/MOKE LAU METH00 HOLLOW STEM AUGER BORE HOLE DIAMETER 12 iN DEPTH DRILLED 42 FT DEPTH TO WATER INITIAL 27 FT STATIC 26 3 FT CASING TYPE PVC FASO DIAMETER 4 IN SCHEDULE 40 INTERVAL 0 FT TO 22 FT SCREEN TYPE PVC F480 DIAMETER 4 IN SLOT SIZE 0 020 IN INTERVAL 22 FT TO 42 FT FILTER PACK TYPE 2/12 SILICA SAND 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 ?OF-1— ELL F?ELL DEPTH FID SAMPLE ID U S C DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG 0-4 ASPHALT 2 4 -11 5/15 SILT, <5% FN, SA-SR PRLY GRDD SND >95% FNS L DRY STRNGTH SLW DLTNCY M TGHNSS L-M PLST HRO M YLLW BRN NPO DRY, STRNG HCL REACTION STRNG _ - CEMENTATION HOMO 4 42 21 6 50 FOR 5" ML B _ 10 I 3 45 15 38 11 5/15-I6 5/20 LEAN CLAY, <5% FN SA-SR, PRLY GRDO SND, >957 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 t4 4210 CL 16 19 19 165/20-252 SANDY SILT 30% FN SA-SR, PRLY GRDD SND 70% FNS ' - 18 L DRY STRNGTH N-SLW DLTNCY L TGHNSS L-M PLST, V STIFF-HRD M YLLW BRN NPO MST N-WEAK HCL REACTION, WEAK CEMENTATION, HOMO, WEAK GRY GRN MOTTLING 20 6 5 — 1B 24 22 ML 24 25 2-26 5/27' POORLY GRADED SAND WITH SILT AND CLAY 907 FN MW9-25 SA-SR, PRLY GRDD SND M DNS-DNS 10% FNS CRY GRN/ _ 5 0 BRN SL PO MST N HCL REACTION WEAK CEMENTATION _ 7 SP_ HOMO 26 12 SM/SC ' 120 4 28 5 9 265/27-41 POORLY GRADED SAND >95% FN-M SA-SR, PRLY GRDD ' MW9-27 5 SND L-M OHS <5% FNS, CRY GRN SL PO MST-WET 30 N HCL REACTION WEAK CEMENTATION HOMO HEAVING SAND 32 ' SP —34- -36- 38- 40—L 4 363840