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' Y V p►TER WURK <br /> WELL/BORING LAG <br /> PROJECT CHEVRON STOCKTON LOCATION 540 NORTH AURCRA WAY STOCKT13N PR13JECT NO 376 <br /> WELL/BORING NO MW2 SURFACE ELEVATION NA FT WELLHEAD ELEVATION _- NA FT <br /> DATE DRILLED 04/30/91 REVIEWED BY NORA H KATAOKA RCE 039322 LOGGED BY TINA LvPAGE <br /> DRILLING COMPANY SPECTRUM EXPLORATION DRILLER TED COFFEY METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER B IN DEPTH DRILLED 72 FT DEPTH TO WATER. INITIAL 65 STATIC 617 FL <br /> CASING TYPE PVC F480 DIAMETER 2 IN SCHEDULE 40 INTERVAL D FT TO _ 5L FT <br /> SCREEN TYPE PVC F480 DIAMETER 2 IN SLOT SIZE 0010 IN INTERVAL 52 E1 TO - 77 --F_r <br /> FILTER PACK TYPE •2/12 SILICA SAND INTERVAL 47 FT TO 77 FT <br /> SURFACE SEAL TYPE NEAT CEMENT OVER 2 BENTONITE PWG INTERVAL 0 FT TO - 455 FT <br /> NOTES <br /> WELL DEPTH PID AMPLE ID LIS G, SOIL DESCRIPTION <br /> DETAIL (rT) (PPM) LOWCIAIN LOG <br /> Q 0-3' ASPHALT <br /> FILL 3 _Z SANDY FILL MATERIAL <br /> - 2 <br /> CL 2-5 SANDY LEAN CLAY 301A SR. FN PRLY GRDD SND; 70X FNS, <br /> 4 M DRY STRNGTH; SLW DLTNCYI M TGHNSS; M PLSTI V <br /> ____ STIFFI DRK YLLW BRN; NPC$ MST; N HCL REACTION WEAK <br /> 5 CEMENTATION HOMO <br /> 6 12 <br /> 2n <br /> 5-15 SANDY LEAN CLAY; 404 SR FT4, PRLY GRDD SND; M DRY <br /> CL STRNGTH; SLW DLTNCY; N TGHNSSI M PLSTI V STIFF, H <br /> 106 YLLOW BRN NPO, MSTI N HCL REACTIDN WEAK CEMENT- <br /> 12 AT1ON HOM <br /> 12 17 <br /> 14 <br /> 14 <br /> 17 <br /> 16 33 15-215/25 CLAYEY SAND; 60/ SR. FN. PRLY GRDD SNDI 40A FNS= _ <br /> r DRY STRNGT)6 SLW-R DLTNCY; L PLSTI M DNSj M YLLV <br /> 18 BRN NPO; N HCL REACT,ON WEAK CEMENTATION MOTTLED <br /> Sc <br /> - 20 <br /> 12 <br /> 22 Is—/— <br /> 215/25-265/30 POORLY GRADED SAND; 1007 SR, M-fN PRLY GRDD SND; N <br /> 24 PLST; M DNS; OLIVE GRYi NPO; MSTI N HCL REACTION <br /> WEAK CEMENTATION; HOMO <br /> 7 SP <br /> - 26 17 <br /> 28267/30-30 MODERATE GRADED SANDI 100/ SA-SR MODERATELY GRDD <br /> SND N PLST v DMS; OLIVE GRY; NPO; MST; WEAK <br /> SP/SW CEMENTATION HOMO <br /> 30 15 <br /> 28 <br /> 32 37 30-35 CLAYEY SAND; 60/ SA-SR. fN PRLY GRDD SND; 40/ FNS, <br /> Sc M DRY STRNGTHI SLW DLTNCY; M TGHNSSI M PLST; M <br /> DNS, M YLLW $RN, NPOI MST N NCL REACTION; VEAK <br /> 34 CEMENTATION HOMO <br /> 5 ---- <br /> 36 27 35-40 CLAYEY SANDI 55/ SR FN PRLY GRDD SNDI 45/ FNS, <br /> M DRY STRNGTHI SLW DLTNCY; M TGHNSS; M PLSTI DNS; <br /> Sc ORK YLLW BRN NPO; MST+ N HCL REACTION WEA% <br /> 38 CEMENTATION MOTTLED <br /> 40 16 40-45 LEAN CLAY, 10/ SR FN, PRLY GRDD SNDI 907 FNS; M DRY <br /> 20 STRNGTN SLW DLTNCY{ M TGMNSSI M PLST; HRD; DRK YLLW <br /> 42 32 CL BRN, HPO. MST, N HCL REACTION, WEAK CEMENTATION <br /> MOTTLED <br /> PAGE ! OF 2 <br />