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WATERWORK <br /> W <br /> ELL BORING LOG <br /> OJECT CHEVRON STOCKTON LOCATION 540 NORTH AURORA WAY STOCKTON PROJECT N❑ 376 <br /> YELL/H❑RING NO MY' SURFACE EL1_VATI❑N <br /> N PT WELLHEAD ELEVATION NA <br /> FT <br /> DATE DRILLED <br /> 04/29/91 REVIEWED BY NORA K KATAOKA RCE #38322 LOGGED BY TINA LePAGE DRILLING COMPANY SPECTRUM EXPLORATION DRILLER TED COPFEY METHOD HOLLOW STEN AUGER <br /> 8 77 FT DEPTH TO WATER INITIAL 645 STATIC 625_ FT <br /> BORE HOLE DIAMETER IN- DEPTH DRILLED 0 S2 <br /> CASING TYPE PVC F480 DIAMETER 2 IN SCHEDULE 40 INTERVAL TO' ---�I <br /> PVC F480 2 _� SLOT SIZE 00� I.�� INTERVAL 52 TO 77�� <br /> SCREEN TYPE DIAMETER <br /> FILTER PACK TYPE *2/12 SILICA SAND INTERVAL 50 To T�—F1 <br /> SURFACE SEAL TYPE NEAT CEMENT OVER 2 BENTONITE PLUG INTERVAL 0 TO 50 L <br /> NOTES <br /> YELL DEPTH PID SAMPLE ID LLS G. SOIL DESCRIPTION <br /> DETAIL (FT) (PPM) BLOVCOUNT LOG <br /> i <br /> 0 0-3' ASPALT <br /> FILL <br /> 3•-2• SANDY FILL MATERIAL <br /> 2 2-5' SANDY LEAN CLAY, 35/ SR, FN PRLY GRDD SND; 65/ FNS, <br /> CL M DRY STRNGTH; SLW DLTNCYj M TGHNSS] M PLST, STIFF] <br /> 4 DRK YLLW BRNj NPOj MSTj N HCL REACTION WEAK CEMENT- <br /> ATION; HOMO <br /> I 2 � <br /> 6 8 5-165/20 SANDY ELASTIC SILT] 40/ SR FN. PRLY GRDDI SND; 60/ FNSj <br /> M DRY STRNGTHj SLV DLTNCYj L TGHNSSI M PLST] V STIFF] <br /> $ DRK YLLW BRNj NPD; MST] N HCL REACTION; M CEMENTATION <br /> MOM© <br /> 10 <br /> 12 <br /> 17 MH <br /> 12 <br /> 14 <br /> 3 <br /> 16 14 <br /> 165/20-20 POORLY GRADED SAND WITH SILT] 90% SA, FN, PRLY GRDD <br /> 18 SP_ SND, 10/ FNS, L DRY STRNGTH, N PLST, M DNS, M YLLV BRN <br /> SM MPO; MST] N HCL REACTION, WEAK CEMENTATION, MOTTLED; <br /> 20 <br /> GRN DISCOLOR AT APPROX 18' CONTINUES TO APPROX 20 <br /> l2 ' <br /> — 22 14 <br /> 24 20-315/35 PLST] M DNSi CLIVEY GRADED DN <br /> CRY] NPO] DRY, N HCL REACTION <br /> 8 WEAK CEMENTATION MOTTLED <br /> 26 <br /> 14 $P <br /> 28 <br /> 30 <br /> 11 <br /> 4 <br /> 32 1 <br /> 315/35-365/40' SANDY SILT/SANDY ELASTIC SILT; 40/ SA FN, PRLY GRDD <br /> SND; 60/ FNS, L DRY STRNGTHj SLV DLTNCYj L TGHNSS, M <br /> 34 PLST, V STIFF] DRK YLLW BRNj MPO; MSTj W HCL REACTION! <br /> MOTTLED <br /> 6 <br /> 36 10 ML/MH <br /> 9 <br /> 365/40-90' CLAYEY SAND] 60/ SA, FN, PRLY GRDD $NDj 40/ FNS] L DRY <br /> STRNGTH; SLV DLTNCY; M TGHNSS, L PLST, M DNS, DRK YLLV <br /> 38 $C BRNj SL POj MST; N HCL REACTION WEAK CEMENTATION; <br /> MOTTLED <br /> 40 40-45' SANDY LEAN CLAY; 30/ SA, FN, PRLY GRDD SNDj 70/ FNS; H <br /> 11 DRY STRNGTH, SLV DLTNCYj M TGHNSS; M PLST] V STIFF; M <br /> 42 15 CL BRN SL PQ MSTj N HCL REACTION M CEMENTATION MOTTLED <br /> PAGE I QF 2 <br />