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i DATE DRILLED 7-13-94 LOGGED BY TOM LUTTERMAN REVIEWED BY GREG P STAHL RG NO 5023 I DRILLING COMPANY SPECTRUM EXPLORATION DRILLER JOHN SUMP METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER e INCHES DEPTH DRLLED 28 FEE", DEPTH TO WATER INITIAL 13 FEET STATIC -1-- 08 FEET CASING TYPE PVC DIAMETER 2 INCHES SCHEDULE 40 INTERVAL 0 FEET TO 9 ETI SCREEN TYPE 8 FEET DIAMETER 2 INCHES SLOT SIZE 0 010-INCH INTERVAL 9 F'cET TO 29 F= FILTER PACK TYPE RMC LONESTAR fl2/12 SAND INTERVAL 7 FEET TO 29 FEETi ! SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FEET TO 7 FEET I i COMMENTS P t D SaNp le Depth Cade Description Conslt ' CONCRETE (0 4 FEET) MH ELASTIC SILT <107. FN SND SA-SR PRLY GRDD >907 FNS M DRY STRNGTH v 2 N DLTNCY M TGHNSS L-M PLST M STIFF-STIFF DUSKY YLLW BRN NPO v v N ORGANICS DRY N HCL REACTION WEAK CEMENTATION MOTTLED v v ' 4 v KOK- 0 MW-5- 4 5 6 5 6 ELASTIC SILT <10% F SND PRLY GRAD >90"a FNS L-M DRY STRNGT, N-5 g DLTNCY L TGHNSS L PLST M STIFF-STIFF DARK YLLW BRN NPO NO ORGANICS MST-WET N HCL REACTION WEAK CEMENTATION HOMO KOK-- 10 MH p MW-S- l♦ 4 ! t05 " 7 0 72 14 - 4 I^ 0 8i6 7 CLAYEY SAND 55FN--M SND SA-SR PRLY GRDD LS 45% FNS L-M DRY ig STRNGTH L TGHNSS L-M PLST M BRN- DARK YLLW BRN NPO r i N ORGANICS WEAK CEMENTATION HOMO SC SANDY SILT 40% FN-M SND SA-SR PRLY GRDD 607. FNS S DLTNCY - 20 L TGHNSS L PLST SFT M BRN NPO N ORGANICS WET N HCL REACTION 0 ; ' WEAK CEMENTATION HOMO 22 ML LEAN CLAY <57 FN SND PRLY GRDD >95% FNS H-VH DRY STRNGTH N DLTNCY M-H TGHNSS M-H PLST STIFF PALE YLLW BRN NPO 24 N ORGANICS MST N HCL REACTION WEAK CEMENTATION HOMO 3 � 0 6 25 CH ! ; 28 0 $ 30 TOTAL DEPTH = 29 FEET / ) 32 ' �4 C',- 36 r ! 38 L h 40 ! LOG OF BORING MW-5 ! WEA WFA t"t KOK REALTY Worlring to Restore Nature 2403 WEST NAVY DRIVE PROJECT 15009101 STOCKTON, CALIFORNIA