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WATER WORK <br /> WELL/BORING LOG <br /> PROJECT TRI VALLEY GROVE RS-STOCKTON LOCATION 8 MILE ROAD, STOCKTON, CA PROJECT NO. 62103-1 <br /> WELL/BORING No. TUGS-MW4 SURFACE ELEVATION NS FT WELLHEAD ELEVATION NS FT <br /> DATE DRILLED 06/27/90 REVIEWED BY RUSSELL W. JUNCAL, RG 3864 LOGGED BY JOHN GIORGI <br /> DRILLING COMPANY SPECTRUM EXPLDRATION INC. DRILLER RAY LIVINGSTON METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 80,5FT DEPTH TO WATER: INITIAL 64 FT STATIC FT <br /> CASING TYPE PVC F480 DIAMETER 2 I SCHEDULE 40 INTERVAL 0 FT TO 59 FT <br /> SCREEN TYPE PVC F480 DIAMETER 2IN SLOT SIZE 0,010 IN INTERVAL 59 FT TO 79 FT <br /> FILTER PACK TYPE <br /> SAND INTERVAL 57 FT TO 79 FT <br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 57 FT <br /> NOTES <br /> WELL DEPTH PID SAMPLE IDI U.S.G. SOIL DESCRIPTION <br /> DETAIL (FT.) (PPM) BLOWCOUNJ LOG <br /> 0 0-5.5' FAT CLAY) <2% SND; >98% FNS; H-VH DRY STRNGTHj N DLTNCY) <br /> M-H TGHNSS; H PLST; HRD; BLIG NPO; ORG DRY-MST; N HCL RE- <br /> ACTION WEAK CEMENTATION HOMD ROOTLETS <br /> _ 2 <br /> CH <br /> 4 <br /> 6 5.5-10.5' LEAN CLAY; <27 SND) >98% FNS; H DRY STRNGTH) N-SLW DLTN- <br /> CY) M TGHNSSi M PLST; HRD) M-DRK YLLW BRN/OLIVE; NPd N <br /> OPQ MST) N HCL REACTION WEAK-M CEMENTATION) HOMO) BLK <br /> 8 CL STAINING; TR FEOX STAINING <br /> - <br /> 10 <br /> 10.5-I1' LEAN CLAY; <27 SNDJ >98% FNS; H DRY STRNGTH; SLW DLTNCY; <br /> M TGHNSS) M PLST; HRD; M YLLW BRN-OLIVE; NPN N DRG; NST; <br /> 12 SM N HCL REACTION; WEAK CEMENTATION HOMO <br /> Il-]1.5/15' SILTY SAND1 >757 SR-f; F, M HRDNSS SND/ PRLY GRDDj <257 <br /> 14 FNS) HRD; M YLLW BRN-ORNG) NPC; N ORG) MST; N HCL REAC- <br /> TION; WEAK CEMENTATION HOMO <br /> 16 CL 11.5/15-16.5/20' LEAN CLAYS <2% SND; >98% FNS; H DRY STRNGT4 N-SLV DLTN- <br /> CY; M TGHNSS) M PLST) HRD; M YLLW BRN) NPI7; N ORG; MST/ N <br /> �i HCL REACTION; WEAK CEMENTATION BLOCKY; BLK STAINING <br /> 18 i� 16.5/20-21.5/25' LEAN CLAY; TR SNDi >99% FNS) L DRY STRNGTH; N-SLW DLTNCY; <br /> M TGHNSS) M PLST) HPD; M YLLV BRN NPO) N ORQ MST; N-VEAK <br /> 20 HCL REACTION; WEAK CEMENTATION HOMO) BLK STAINING <br /> _ CL <br /> 22 21.5/25-26.5/30' SILT; <10% SND; >90% FNS; L DRY STRNGTH) R DLTNCY; L TGH- <br /> NSSj N PLST; HRD) DRK YLLW BRN; NPO) N ORG) MST; N HCL RE- <br /> ACTION WEAK CEMENTATION) HOMO <br /> 24 <br /> 26 ML <br /> 26.5/30-36.5/40'LEAN CLAY; <5% SND; >957 FNS) H DRY STRNGTFU N-SLW DLTN- <br /> 28 CY; M TGHNSS; M PLST) HRD; DRY, YLLV BRi, NPU) N MG, VAST, u <br /> HCL REACTION; WEAK-M CEMENTATION) BLOCKY) BLK AND FEOX <br /> STAINING <br /> 30 <br /> 32 <br /> CL <br /> 34 <br /> 36 <br /> 36.5/40-41,5/45' SILTY SAND; >75%, SA-SR-R, F-M, M HRDNSS SND; PRLY GRDD; <br /> <25% FNS) HRD; M YLLW BRN NPOJ N ORG; NST; N HCL REACTION; <br /> 38 WEAK CEMENTATION; HOMO) FEOX STAINING <br /> 40 <br /> SM <br /> 42 <br /> PAGE OF <br />