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GROUND ZERO ANALYSIS LOG OF BORING SB--2 PROJECT VALLEY VOLKSWAGON LOCATION 647 E. MINER, STOCKTON CA PROJECT NO. 95-015 DATE DRILLED 5/23/95 LOGGED BY LOIS FRANTZ REVIEWED BY GREG P. STAHL RG No. 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER DOUG SHEARER/TED COFFEY METHOD HOLLOW, STEM AUGER _T- BORE HOLE DIAMETER 6 IN DEPTH DRILLED 45 FT DEPTH TO WATER : INITIAL NA FT STATIC NA FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA DIAMETER IN SLOT SIZE 114 INTERVAL .-- --- FT TO FT FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE _NEAT 6JME.NT INTERVAL _ 0 FT TO 46.5 FT COMMENTS:_ SOIL BORING ABANDONED WITH HEAT_CEMENT PAGE I OF_. WELL DEPTH PID SAM L I U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-6.5/10' POORLY GRADED SAND; 951E FN-M, SA-SR, PRLY GRDD SND; V LS; 5% FNS; M BRN; NPO; MST; WEAK CEMENTATION; HOMO 2 SP 4 I 1 6 1 0 1 8 6.5/10-11.5/15' ELASTIC SILT; 5% FN, SA-SR, PRLY GRDD SND; 95% FN;S VH DRY STRNGTH: SLW DLTNCY: M TGHNSS: M PLST; M STIFF-STIFF; M GRY BRN-GRN MOTTLED: NPO: DRY-MST: M CEMENTATION; HOMO; CaCO3 10 0 2 5 MH 7 12 11.5/15-26.2' SILT; 5-107: FN, SA-SR, PRLY GRDD SND; 90-95% FNS; M DRY 14 STRNGTH; SLW DLTNCY; M TGHNSS; M PLST; STIFF-V STIFF: SB2-15.5' M 13RN; NPO; DRY-MST; M CEMENTATION: HOMO; CaCO3 0 5 16 10 13 18 20 06 ML/MH 10 14 22 24 S82-25.5' 6 26 0 12 t8 j 26.2-30.3' WELL GRADED SAND; 95% FN-CRS, SA-SR, W GRDD SND; DNS; 5% FNS; M RED BRN; NPO: MST; WEAK CEMENTATION; HOMO 2$ SW 30 0 10 10 30.3-35' SILT; 5-10% FN-M, SA-SR, PRLY GRDD SND; 90-95% FNS; L-M 7 DRY STRNGTH; SLW DLTNCY; L TGHNSS; L-M PLST; STIFF; M RED 32 BRN; NPO; MST; WEAK CEMENTATION; HOMO; CaCO3 ML I. —34— S82-35.5' 635-36.5/40- SILTY SAND; 85% FN, &A-SR. PRLY GRDD SND; 15% FNS; 0 t0 RED BRN; NPO: MST; WEAK CEMENTATION: HOMO 38 20 SM 38 36.5/40-41.5/45' SILT; 5% FN, SA-SR, PRLY GRDD SND; 95% FNS; M-H DRY STRNGTH; SLW DLTNCY; M TGHNSS; M PLST; M STIFF-STIFF; RED SRN-, NPO; MST; WEAK CEMENTATION: HOMO; CaCO3 ML/MH 46