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i <br /> WATERWORK <br /> WELL/BORING LOG <br /> PROJECT CHEVRON STOCKTON LOCATION 540 NORTH AURORA WAY, STOCKTON — PROJECT NO. 37fi <br /> YELL/SORING NO HW1 SURFACE ELEVATION NA FT WELLHEAD ELEVATION NA FT <br /> DATI" DRILLED 04/24/41 REVIEVED BY NORA H. KATAOKA RCE 638322 LOGGED BY TINA LPPAGE <br /> DRILLING COMPANY SPECTRUM CXPL13RATI13N DRILLER TED OFFEY METHOD SLOW STEM AUGER r <br /> BORE HOLE DIAMETER 8.-ML DEPTH DRILLED77 FT DEPTH TO WATER INITIAL -- 645 _FT STATIC __6LIS --FT- <br /> CASING TYPE PVC F400 DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 ET TO ___5z - ET <br /> SCREEN TYPE PVC F4E0 DIAMETER 2-.-IN SLOT SIZE_ M010 IN INTERVAL 52 FT TO 77 FT <br /> FILTER PACK TYPE 62/12 SILICA SAND INTERVAL 50 FT TEI 77 FT <br /> SURFACE SEAL TYPE NEAT CEMENT OVER 2 BENTONITE PLUG INTERVAL 0 FT TO 50 FT <br /> NOTES <br /> VELL DEPTH PID SAMPLE 10 LLS4 SOK DESCRIPTION <br /> DETAIL (F7) (PPM) BLGVCDUM LOG <br /> — 0 0-3 ASPALT <br /> FILL <br /> 3'-2 SANDY FILL MATERIAL <br /> 2-S SANDY LEAN CLAYt 354 SIL FN, PRLY GRDD SNDt 65% FNS, <br /> 4 CL DRKDRY <br /> FFj <br /> YLLV BRlq NPOf MSTIINYMCL REACTIE" WECEMENT— <br /> ATION HOMO <br /> 2 <br /> - 6 E 5-16.5/20, SANDY ELASTIC SILTI 4DX SR. Fla PRLY GRDD S" 60Y FNSt <br /> M DRY STRNGTW SLW DLTNCY) L TGHNSS) M PLST) V STIFF) <br /> 8 DRK YLLW BRN NPO; MST) N HCL REACTIONt M CEMENTAT1ONt <br /> HOMO <br /> 10 <br /> je <br /> 12 MM <br /> 14 <br /> 3 <br /> 16 1. <br /> 18165/20-20 POORLY GRADED SAND WITH SILT) 904 Sk Fµ PRLY GRDD <br /> Sp- SND, 10$ FNS, L DRY STRNGTW N PLST; M DNS, M YLLW ORN <br /> SM MPO) MST, N HCL REACTION WEAK CEMENTATION; MOTTLED <br /> 20 GRN DISCOLOR AT APPROX 18 C13NTINUES TO APPROX 20 <br /> 12 <br /> 22 14 <br /> 24 20-315/35 POORLY GRADED SAND, 1007 SA, M—F PRLY GRDD SNDi N <br /> PLSTt M DNSt OLIVE GRY) MPI1 DRYI N HCL REACTION <br /> 26 <br /> B WEAK CEMENTATION MOTTLED <br /> 14 SP <br /> 28 <br /> 30 <br /> 11 <br /> �� 14 <br /> 315/35-365/40 SANDY SILT/SANDY ELASTIC SILT) 4(r7 SA, FN, PRLY GRDD <br /> SND; 60% FNSI L DRY STRNGTHt SLW DLTNCY) L TGHNSSI M <br /> 34 PLST) V STIFFI DRK YLLW BRN MM MST; N MCL REACTION <br /> 6 MOTTLED <br /> 36 10 ML/MH <br /> 9 <br /> 36.3/40-40 CLAYEY SANK 60% SA. FK PRLY GRDD SNDt 40'.4 FNSt L DRY <br /> 3B STRNGTM; SLW DLTNCYt N TGHNS% L PLST) M DNS, ORK YLLW <br /> SC ERN SL POs MST) N HCL REACTION WEAK CEMENTATIW4 <br /> MOTTLED <br /> 40 40-45 SANDY LEAN CLAYt 304 SA. FN, PRLY GROD SNA 70/ FNSs M <br /> Il DRY STRNGT14K SLW OLTNCY; N TGHNSSt M PLS?t V STIFFI M <br /> 42 15 CL ERN SL PM MST)N HCL REACTION M CEMENTATION MOTTLED <br /> PAGE i OF 2 <br />