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1 <br /> WAIERWORK <br /> WELL]BORING LOG <br />' PROJECT BJJ TRUCKING TRACY LOC,qrION 737 11th STREET, TRACY, CA PROJECT NO 169 <br /> VELL/BORING NO, MW3 SURFACE ELEVATION APPRO)L 46 )•T WELLHEAD ELEVATION rT <br /> DATE DRILLED 01-02-91REVIEVED BY NORA KATAOKA RCE 38322 LOGGED BY "N GIORGI <br /> DRILLING COMPANY SPECTRUM EXPLORATION DRILLER VAN LEONARD METHOD HOLLOW STEM AUGER <br />' BCRE HOLE DIAMETER a IN DEPTH DRILLED 23 FT DEPTH TO WATER INITIAL -- 10 -T STATIC7.8 rl <br /> CASING TYPE PVC-EAGG DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT <br /> TO E = <br /> SCREEN TYPE PVC-F480 DIAMETER SLOT SIZE O.Ot TN INTERVAL 8 ET TO2�.FT. <br /> FILTER PACK TYPE -S8U2 INTERVAL 6 FT TO 23 FT <br />' SURFACE SEAL TYPE ENTOHIT /SAND CEMENT INTERVAL 0 FT TO 5 FT <br /> NOTES <br /> TELL DEPTH PID 3AMPLE ID USG SOIL DESCRIPTION <br /> tDETAIL (FTJ (PPM) U91v LOG <br /> 0 0-05' ASPHALT <br />' 2 0.3-6.3/10' ELASTIC SILTo <10'/. SNDj )god FMSJ M DRY STRNGTN SLV <br /> DLTNCY7 M TGHNSSj M PLSTS STIFF] M DRK YLLV BRN <br /> N PO) N ORG) MST) VEAK MCL REACTION1 WEAK C£MENTATMN <br />' MR KOKO <br /> 6 � <br /> 4 <br />' 6 <br /> 8 STATIC PRLY GRDD SAND >90Y SA-SR. FN-MED, HRD GR HRDNSS <br /> 6 5/10-11' PRLY GRDD SNDA <l0 rNSj MED DNSS MARK YLLV BRP) N POl <br /> N ORQ WET) N HCL REACTION] WEAK CEMENTATION) <br /> 1 S INITIAL HOMO <br /> 6 11-11.5/15' SANDY LEAN CLAYi <25d SND) >75'/. FNS) H DRY STRNGT4 <br /> 12 12 CL H-SLV DLTNCYI M TGHNSSj M PLSTS V STIFF) M YLLV BRN <br /> N POS N ORGj VETS N HCL REACTION] WEAK CEMENTATION) <br /> 14 HI3MO <br />' 5 ]L5/L5-16.5/20' SILTY SANDi >757 SA-SR, FN-MED, HRD GR HRDNSS, PRLY <br /> /spl <br /> GRDD SND] <25% FNS, MED DNSS M DRK YLLV MRN N PQ <br /> 16 7 sm N ORGi VET) N HCL REACTIONS WEAK CEMENTATION) HOMO <br /> IL <br /> 18' r 115/20-20.5' PRLY GRDD SANDI >98.(, SR, FN, HRD GR HRDNSt PRLY GRDD r� SNOS <27 FNS) M DNSS M DRK YLLV ERNS N POS N DRG) <br /> SP VET) N HCL REACTION WEAK CEMENTATIONS HOMO <br /> 20 j CL 205-21.3' LEAN CLAY+ <3X SND) >97L FNS) M DRY STRNGT4 <br />' 22 10 N-SLV I)LTNCY) M TGHNSSj M PLST) V STIFF) M YLLV HRNj <br /> NO RETURNS N POS N ORGj WETj N HCL REACTION WEAK CEMENTATIONS <br /> HOMO <br /> 24 <br />' 26 <br /> 28 <br /> 30 <br /> 32 <br /> 34 c-n <br /> 35 Cjr <br /> 38 It CF " <br /> 40 <br /> 42 <br /> 1 <br /> PAGE ❑F 1 <br />