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WATER WORK <br /> WELL/BORING LOG <br /> PROJECT CHEVRON STOCKTON LOCATION 540 NORTH AURORA WAY STOCKTON PROJECT NO 376 <br /> WELL/BORING NO My2 SURFACE ELEVATION - NA FT WULHEAD ELEVATION NA FT <br /> DATE DRILLED 04/30/91 REVIEWED BY NORA H KATAOKA RCE #38322 LOGGFD BY TINA L4PAGE <br /> DRILLING COMPANY SPECTRUM EXPLORATION DRILLER TED C13FFEY METHOD HOLLOW STEM AUGER <br /> SORE HOLE DIAMETER a IN DEPTH DRILLED 72 FT DEPTH TO WATER- INITIAL 65 FT STATIC „617 FT <br /> CASING TYPE PVC F480 DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 52 ET <br /> SCREEN TYPE PVC F480 DIAMETER 2 IN SLIT SIZE 0010 IN INTERVAL 52 El TO 77 FT <br /> FILTER PACK TYPE #2/12 SILICA SAND INTERVAL 47 FT TO 77 FT <br /> SURFACE SEAL TYPE NEAT CEMENT OVER 2 BENTONITE PLUG INTERVAL 0 FT TO 435 F.L <br /> NOTES <br /> WELL DEPTH PID SAMPLE ID LLS G <br /> DETAIL (FT) (PPM) BLovcOuNl LOG SOIL DESCRIPTION <br /> (1 0-3 ASPHALT <br /> FILL 3_2 SANDY FILL MATERIAL <br /> 2 <br /> 2-5 SANDY LEAN CLAVI 304 SR FN, PRLY GRDD SNDI 70% FNS, <br /> 4 CL M DRY STRNGTH; SLW DLTNCY] M TGHNSSI M PLST] V <br /> 5 ,—_— STIFF, DRK YLLV ERN NPIb MSTj N HCL REACTION WLAK <br /> 6 12 CEMENTATIOA HOMO <br /> 20 <br /> 5-15 SANDY LEAN CLAY, 404 SR, FN, P4LY GRDD SNDI M DRY <br /> CL STRNGTHI SLW DLTNCY] M TGHNSSj M PLSTI V STIFfj M <br /> _ 106 YLLOW ORA NPO, MSTj N NCL REACTION; IEAK C£MENT- <br /> I2 ATIONI HUM <br /> 12 17 <br /> 14 <br /> ]a <br /> 17 <br /> 16 <br /> 33 15-215/25 CLAYEY SAN➢j 60/ SR FN. PRLY GRDD SNDI 40/ FN51 L <br /> DRY STRNGTHI SLW-R DLTNCYI L PLST] M DNSj M YLLV <br /> 18 BRN NPO] N HCL REACTION, WEAK CEMENTATION MOTTLED <br /> SC <br /> 20 <br /> 12 <br /> 22 Is <br /> 213/23-26 3/30 POORLY GRADED SAND 100/ SR. M-iN PRLY GRDD SND, N <br /> 24 PLST] M DNS, OL,VE GRY; NPO; MSTj N HCL REACTION, <br /> WEAK CEMENTATION HOMO <br /> 7 <br /> 26 13 SP <br /> l7 <br /> 28 265/30-30 MODERATE GRADED SAND, ll)V SA-SR MODERATELY GRDD <br /> SND N PLST V DNS, OLIVE GRYj MPIl MST, WEAK <br /> SP/SW CEMENTATION, HOMO <br /> 30 15 <br /> 32 37 30-35 CLAYEY SAND 60/ SA-Sk FN, PRLY GRDD SNDI 404 FNS <br /> SC M DRY STRNGTHI SLW DLTNCY, M TGHNSSI M PLST] M <br /> DNS M YLLW ERN NPOI MST; N HCL REACTION WEAK <br /> 34 CEMENTATION HOMO <br /> 36 27 35-40 CLAYEY SANDI 55/ SR FN, PRLY GRD➢ SNDI 45/ FNSI <br /> M DRY STRNGTHI SLW DLTNCYI M 104NSS1 M PLST] DNS+ <br /> SC DRK YLLW HRA NPU; MST, N HCL REACTION] WEAK <br /> 38 CEMENTATION, MOTTLED <br /> 40 16 40-45 LEAN CLAY, 10/ SR FN, PRLY GRDD SNDj 40/ FNSj M DRY <br /> 20 STRNGTN SLW DLTNCY, M TGKNSS, M PLST, HRD, DRK YLLV <br /> 42 32 CL ERN, NPD, MST, N HCL REACTION, WEAK CEMENTATION <br /> MOTTLED <br /> PAGE ? OF 2 <br />