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WELLIBORING LOG <br /> PROJECT LAIDLAW CORPORATION LOCATION 1444 TILLIE LEWIS DRIVE STOCKTON CA PROJECT NO W0294 <br /> WELL/BORING NO MW4 SURFACE ELEVATION NS FT WELLHEAD ELEVATION NS F7 <br /> ' DATE DRILLED 02/27/92 REVIEWED BY GREG P STAHL RG No 5023 LOGGED BY TOM LUTTERMAN <br /> DRILLING COMPANY RESNA INDUSTRIES DRILLER GENE NUNES METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 12 IN DEPTH DRILLED 30 FT DEPTH TO WATER INITIAL 1B - T STATIC I6 FL <br /> CASING TYPE PVC F480 DIAMETER 4 IN SCHEDULE 40 INTERVAL 0 FT TO - lo FZ <br /> SCREEN TYPE EYC F480 DIAMETER 4 IN SLOT SIZE 0.010 IN INTERVAL 10 FT TO 30 FT_ <br /> FILTER PACK TYPE 2/12 LONESTAR SAND _ _ _.._ INTERVAL 8 EL TO 30 FL <br /> SURFACE SEAL TYPE CEMENT SLURRY OVER BENTONITE INTERVAL 0-L TO s FT- <br /> NOTES 2 FOOT BENTONITE SEAL OVER SAND <br /> WELL DEPTH PID SAMPLE ID U S G SO[L DESCRIPTION <br /> DETAIL (FT) (PPM) BLOWCOUNT LOG <br /> ' 0 0-11 5/15 ELASTIC SILT, <5% SND >95% FNS, M DRY STRNGTH, N-SLW <br /> DLTNCY, M TGHNSS, M PLST, V STIFF, DRK YLLW BRN, NPO <br /> ORGANICS, DRY-MST, WEAK HCL REACTION M CEMENTATION, <br /> 2 <br /> ' HOMO, MICACEOUS <br /> 4 <br /> 1 <br /> 1 7 <br /> 6 I MH/CL <br /> 24 � <br /> 8 <br /> 10 <br /> 0 so <br /> 12 s5 <br /> 11 5/15-21 5/25 LEAN CLAY, <10% SA-SR, FN, PRLY GRDD SND, >90% FNS, <br /> M-H DRY STRNGTH SLW DLTNCY, M TGHNSS M-H PLST V <br /> 14 STIFF, OLIVE GRY NPA, MST, N HCL REACTION, M CEMENTATION, <br /> U._ww4-15' HOMO <br /> _ 9 <br /> 16 ' <br /> 6 20 <br /> CL <br /> — 18 <br /> 20 s <br /> 1 1x <br /> 22 2G <br /> ' 21 5/25-26 5/30 SILTY SAND >75% SA-SR, FN-M PRLY GROD SND <25% FNS, <br /> 24 N DRY STRNGTH, R DLTNCY, M TGHNSS, N PLST, M DNS, M <br /> 0 10 DIRK GRY, NPO WET, N HCL REACTION WEAK CEMENTATION <br /> I 5M HOMO, MICACEOUS <br /> = 26 15 <br /> ' 2$ 26 5/30-31 5' FAT CLAY, <5X SND, >957. FNS, VH DRY STRNGTH, N DLTNCY <br /> M TGHNSS M-H PLST, V STIFF DIRK GRN GRY NPO WET N <br /> Li <br /> HCL REACTION, WEAK CEMENTATION, HOMO <br /> = 30 a GH <br /> ' 14 <br /> 32 10 <br /> 34 <br /> � GEG�o <br /> ' � <br /> 36 GREGORY P <br /> STAHL <br /> 38 No- 5023 <br /> 40 � if <br /> 42 OF CAI.1����\P <br /> ' <br /> ' PAGE 1 OF 1 <br />