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WATERWORK <br /> UVELL�BORING LOG <br /> ' PROJECT BJJ TRUCKING/STOCKTON LOCATION 2431 EAST MARIPOSA ROAD, STOCKTON, CA PROJECT NO 290 WELL/B❑RING NO MVI SURFACE ELEVATION NA WELLHEAD ELEVATION NA FT <br /> DATE DRILLED 01/15/91 REVIEWED BY NORA H KATAOKA RCE 38322 LOGGED BY KRYS M HARDMAN <br /> DRILLING COMPANY SPECTRUM EXPLORATI❑N DRILLER RAY LIVINGSTON METHOD HOLLOV STEM AUGER <br /> BORE HOLE DIAMETER _ 8 IN DEPTH DRILLED 865 FT DEPTH TO WATER, INITIAL 75 Fs 13TATIC �1 <br /> CASING TYPE F480 PVC DIAMETER - 2 IN SCHEDULE 40 INTERVAL 0 FT TO 6S <br /> SCREEN TYPE F480 PVC DIAMETER 2 IN SLOT SIZE 0010_ IN INTERVAL . 65 FT TO g�Z <br /> FILTER PACK TYPE #2/12 SILICA SAND INTERVAL 635 FT TO 81 <br /> ' SURFACE SEAL TYPE 2' HYDRATE BENTONITE CHIPS/CEMENT-SAND GROUT INTERVAL 0 ET TO 63.5 FT <br /> NOTES <br /> WELL DEPTH PID SAMPLE ID USG <br /> ' DETAIL (FT) (PPM) BLOWCOUNI LOG SOIL DESCRIPTION <br /> 0 0-05, ASPHALT <br /> 2 GP 05-05/50' GRAVEL FILL <br /> 05/50-55' LEAN TO FAT CLAY) <56 SNDj >95/ FNSj VH DRY STRNGTH <br /> 4 N DLTNCY, M-H TGHNSS, M-H PLST] M STIFF-STIFF; BRN <br /> ' GRYJ NPO; ❑RGANICSj DRY-MSTj WEAK CEMENTATION] HOMO <br /> 4 CL/CH <br /> 6 55-115/15' ELASTIC SILTS <5/ SNIIj >957 FNS; M DRY STRNGTHj SLW <br /> 8 DLTNCY] L TGHNSS] L PLST] STIFF) M YLLV 6RN) NPO) <br /> ORGANICS) MSTj WEAK CEMENTATION) SOME ORGANICS <br /> ' 8 MH <br /> 10 s <br /> 7 <br /> M 12 8 1t5/150-155' LEAN TO FAT CLAY] <5/ SNDj >95/ FNS) H-VH DRY <br /> STRNGTHj N DLTNCY] M-H TGHNSS; M-H PLST] ST1FFj DUSK <br /> 14 YLLW BRNj NPO] ORGANICS] MSTJ WEAK CEMENTATI❑Nj HOMO <br /> CL/CH <br /> 5 155-205' ELASTIC SILT] <5/ SNDj >95/ FNSj H DRY STRNGTHj SLV <br /> 16 8 DLTNCY] L-M TGHNSS] M PLSTJ STIFF] LT ❑LIVE BRNj NPO <br /> 10 ORGANICS) MST; WEAK CEMENTATION] MOTTLED) SOME BLK <br /> ORGANICS <br /> 18 MH 20 5-215/25 0' ELASTIC SILT WITH SAND] <10/ SA-SR, FN SND) >90/ FNSj <br /> ' M-H DRY STRNGTHj SLW DLTNCY] M TGHNSS] M PLSTJ <br /> -� 20 STIFFS LT OLIVE BRMSL PQ MSTj WEAK CEMENTATION] <br /> 5 MOTTLED <br /> 6 <br /> 22 8 MH 215/250-265/300' LEAN CLAY] <57 SND) >957 FNSj H DRY STRNGTHj N-SLW <br /> ' DLTNCY] M TGHNSS) M-H PLSTJ V STIFF] LT OLIVE GRYJ <br /> SL POj MST; WEAK-M CEMENTATION] HOMO <br /> 24 265/300-310' ELASTIC SILTI <10/ SNDj >90/ FNSj M-H DRY STRNGTHI <br /> J SLW DLTNCY] M TGHNSS, M PLST, V STIFF] M YLLW BRN <br /> ' 26 12 CL & LT OLIVE GRYJ SL POj DRY-MST) MOTTLED <br /> 13 <br /> 28 310-315/35 0' LEAN TO FAT CLAY) (5/ SNDj >95/ FNSj H-VH DRY <br /> STRNGTHj N DLTNCY: M-H TGHNSS] M-H PLST; V STIFF] M <br /> 30 /MHYLLW BRN >L LT OLIVE GRYJ SL PO) DRY-MST) MOTTLED <br /> 3 U Mu <br /> 15 <br /> 32 16 CL/CN 3t5/359-365/400' ELASTIC SILTI <107 SND, >90/ FNS; L-M DRY STRNGTW <br /> SLV-R DLTNCY] L-M TGHNSS] L-M PLST] HRDj LT OLIVE] <br /> ' NPOj MST) WEAK CEMENTATION] HOMO; NO RECOVERY FROM <br /> 34 3sa' <br /> 12 <br /> 36 21 MH <br /> ' 30 365/400-460' SILT WITH SAND] <25/ SA-SR, FN, PRLY GRDD SND) >75/ <br /> FNSj L-M DRY STRNGTHj SLW-R DLTNCY] L TGHNSS] L <br /> 38 PLST] HRDj LT OLIVE] NPO] ORGANICS] MSTI WEAK CEMENT- <br /> ATION; MOTTLED <br /> 40 15 <br /> 21 <br /> 42 34 ML <br /> ' PAGE t OF 2 <br />