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LOG OF WELL MW5 ' PROJECT SAN JOAOUIN CATHOLIC CEMENTERY LOCATION CEMETERY LANE & HARDING WAY STOCKTON CA PROJECT NO 150041 01 DATE DRILLED 05/2g-2,7/94 LOGGED BY LOIS FRANTZ REVIEWED BYSTAHL Rfa No. 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER MIKE YOUNG/MOKE LAU METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER — 12 IN DEPTH DRILLED 75 FT DEPTH TO WATER INITIAL __ 60 2 _ET STATIC 6097 FT CASING TYPE PVC F48a DIAMETER A IN SCHEDULE ._.4,.Q INTERVAL 0 FT TO 55 FT SCREEN TYPE PVC F480 DIAMETER _ a IN _ SLOT SIZE 0 020 IN INTERVAL 55 ET TO 75 FT FILTER PACK TYPE 2/12 SILICA SAND _ _ _ INTERVAL 53 FT TO 75 FT SURFACE SEAL TYPE CEMENT SANG =RPY_OVER BENTONITE INTERVAL TO 53 FT ' COMMENTS PAGE IOFB WELL DEPTH FID SAMPL IU S C DESCRIPTION DETAIL FT (PPM) BLOWCOUNT LOG ' 0-11/145 SILT <10% FN SA-SR PRLY GROG SND >90% FNS M DRY STRNGTH SLW DLTNCY L-M TGHNSS, L PLST 2 V STIFF-HRO M YLLW BRN NPO DRY ORGANICS WEAK HCL REACTION WEAK CEMENTATION HOMO ' — 4 5 ML 14 6 2 5 20 ' 8 2 5 18 _ 12 11/14 5-14 8' POORLY GRADED SAND WITH CLAY >85% FN-M SA-SR PRLY ' GRDD SND, <57 FN SA-SR PRLY GROD GRVL, LS, 10% FN5 M YLLW SRN DRY ORGANICS WEAK HCL REACTION WEAK CEMENTATION HOMO _ 14 SP-SC 3 14 8-16/19 5 FAT CLAY <5% FN SA-SR PRLY GRDD SNO >957 FNS, - 9 CH H DRY STRNGTH N DLTNCY M-H TGHNSS M-H PLST HRD 16 25 15 8LK BRN NPD ORGANICS MST N-WEAK HCL REACTION WEAK CEMENTATION HOMO _ 18 16/19 5-21/24 5 SILTY SAND >707 FN SA-SR PRLY GRDD SND M DNS <307 FNS M YLLW BRN NPO DRY-MST WEAK HCL REACTION WEAK CEMENTATION HOMO 20 5 8 SM 22 tl 22 21/24 5-26/29 5 SILT <5% FN SA-SR PRLY GRDD SND >957 FNS M DRY STRNGTH N-SLW DLTNCY L-M TGHNSS L-M PLST STIFF-V STIFF SLK BRN, NPO DRY-MST, WEAK HCL 24 REACTION M CEMENTATION HOMO 9 18 ML 26 25 26 ' 26/29 5-30 5 LEAN TO FAT CLAY <5% FN SA-SR PRLY GRDD SND >95% FNS H DRY STRNGTH N DLTNCY H TGHNSS M-H PLST 28 S71FF-V STIFF BLK BRN NPO ORGANICS DRY-MST, WEAK- STRNG HCL REACTION WEAK CEMENTATION HOMO 30 2 3 a CL/CH t0 30 5-31/345 POORLY GRADED SAND WITH CLAY 90% FN-M SA-SR, PRLY i9 GRDD SNO DNS 10% FNS RD BRN NPO DRY-MST WEAK SP-SC HCL REACTION WEAK CEMENTATION, HOMO 32 31/34 5-36/39 5 ELASTIC SILT <107 FH-CRS SA-SR W GRDD SNP, ' >90% FNS M DRY STRNGTH N DLTNCY M-H TGHNSS, M PLST STIFF-HRD M YLLW BRN NPO DRY-MST 34 STRNG HCL REACTION M CEMENTATION, HOMO, C00O3 _ 8 MH ' 25 22 36 28 36/39 5-39 8 LEAN CLAY, <57 FN, SA-SR, PRLY GRDp SND, >957. FNS, H DRY STRNGTH N-SLW DLTNCY M TGHNSS M PLST STIFF DRK-M YLLW BRN NPO DRY-MST WEAK-STRNG HCL REACTION WEAK CEMENTATION HOMO 38 39 B-448 SANDY LEAN CLAY 30% FN SA-SR PRLY GRpD SND 707 CL FNS H DRY STRNGTH N-SLW DLTNCY M-H TGHNSS, L-M PLST STIFF-HRD M-DRK YLLW BRN NPO DRY-MST WEAK- 2 2 7 40 STRING HCL REACTION WEAK CEMENTATION HOMO