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WELL/BORING UOG PROJECT REEVES EXXON LOCATION 2360 EAST STREET, TRACY CA PROJECT NO WO-358 WELL/BORING NO MWI SURFACE ELEVATION NS - Ell WELLHEAD ELEVATION _ NS FT_ DATE DRILLED 12/17/91 REVIEWED BY GREG STAHL RG NO 5023 LOGGED BY LOIS FRANTZ DRILLING COMPANY EXCELTECH DRILLER GENE NUNES/STEM: MUUNS METHOD HOLLOW STEL AUGER ' BORE HOLE DIAMETER 8IN DEPTH DRILLED 20 FT DEPTH TO WATER INITIAL _ 7 FT STATIC _7.31 FT ^ CASING TYPE PVC F480 DIAMETER ; IN SCHEDULE INTERVAL 0 TO - 5 FI SCREEN TYPE PVC F480 DIAMETER 4 IN SLOT SIZE 0 010 IN INTERVAL 5 Fl TO - -20 FT- FILTER PACK TYPE _2/12_SILICA_ SAND _ - INTERVAL 4 FT TO 20 FT ' SURFACE SEAL TYPE CEMENT/SAND SLURRY INTERVAL 0 FT TO 35 FT NOTES Gr BENTONITE PLUG ABOVE SAND PACK WELL DEPTH PID SAMPLE ID U S G DETAIL (FT) (PPm) BLOWCOU LOG 501E DESCRIPTION 0 0-2' ASPHALT Z"-6 5/10• LEAN CLAY <5% SA-SR, FN, PRLY GRDD SND, 95% FNS, H-VH 2 DRY STRNGTH SLW-R DLTNCY, L-M TGHNSS, L-M PLST, M STIFF, OLIVE TO ORK GRY, M-STRNG PO, MST, WEAK-STRNG HCL REACTION, HOMO 4 1D7a ct Mw1-5 s• 71 3 65/10-11 5/15' LEAN CLAY WITH SAND <257. SA-SR, FN-M, PREY GRDD SND 6 3 >75% FNS, H-VH DRY STRNGTH SLW-R DLTNCY M TGHNSS, 6 L-M PLST, V STIFF, M YLLW SRN, N-SL PO, ORGANICS, WEAK HCL REACTION, WEAK CEMENTATION, HOMO, RUST MOTTLED — 10 2 g -15 CL 11 5/15-16 5/20'ELASTIC SILT WITH SAND, <25% SA-SR, FN-M PRLY GROD SND, _ '2 20 _ >75% FNS M-H DRY STRNGTH, N-SLW DLTNCY L TGHNSS N-L e PLST STIFF, M YLLW BRN NPO WET WEAK-STRNG HCL REACTION ' WEAK CEMENTATION HOMO TRACE CaCO3 14 t S 16 7 MH 8 t6 5/20-21 5' LEAN CLAY WITH SAND, <Z57. SA-SR FN-M, PREY GRDD SND, >75% FNS H-VH DRY STRNGTH SLW DLTNCY L TGHNSS L M 18 PLST STIFF M YLLW BRN, NPO, WET, N-WEAK HCL REACTION WEAK CEMENTATION, HOMO, VERY HRD DRILLING — 20 O 5 CL 9 22 12 24 26 28 ED Gel<� 61 32 YGREGORY P STAHL 1 34 No. 5023 36 �l9rF OF CQlIE��`Q• 38 40 42 PAGE OF 1