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, GROUND ZERO ANALYSIS LOG OF BORING S8-1 PROJECT VALLEY VOLKSWAGON LOCATION 647 E. MINER, STOCKTON CA PROJECT NO. 05-015 DATE DRILLED 5/22-23/95 _ 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 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 IN INTERVAL - FT TO FT FILTER PACK TYPE NA _._. INTERVAL FT TO FT SURFACE SEAL TYPE HEAT CEMENT _ INTERVAL 0 FT TO 46.5 FT COMMENTS:-=LAQRING ABANDONED WITH NEAT CEMENT PAGE i OFA WELL DEPTH PID SAMPLE In U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-6.3' POORLY GRADED SAND: 85% FN-M, SA-SR, PRLY GRDD SND; 109 FN, SA-SR, PRLY GRDD GRVL; M DNS; 59 FNS; 2 M URN; NPO; DRY; WEAK CEMENTATION; HOMO SP 4 5 6 7 0 8 6.3-6.5/10' LEAN CLAY; 5% FN. SA-SR. PRLY GRDD SND: 959 FNS; H-V CL H DRY STRNGTH; N DLTNCY; M-H TGHNSS; M-H PLST; STIFF; M BRN: NPO; MST; WEAK CEMENTATION; HOMO 8 6.5/10-21.3/25' SILT; 5% FN, SA-SR, PRLY GRDD SND; 959 FNS; L-M DRY 10 SB1--10.5' STRNGTH; N-SLW DLTNCY; M TGHNSS; L-M PLST; STIFF; 4 M URN: NPO; MST: WEAK CEMENTATION; HOMO 6 HOMO 0 11 —12- -14— Sal-15.51 214SB1-15.5' 2 ML 1s 6 0 10 18 20 5 12 16 22 0 21.5/25-25.8' ELASTIC SILT; 59 FN, SA-SR SND; 93% FNS; H-VH DRY STRNGTH; SLW DLTNCY; M TGHNSS; L-M PLST; STIFF; GRN-M BRN; M-STRNG P0; MST; WEAK CEMENTATION; 24 HOMO >2500 4 SBI-25.5'z4MH/CL 26 18 20 L 25.8-30.8' WELL GRADED SAND; >90% FN-CRS, SA-SR. W GRDD SND; 5% FN, SA-SR, W GRDD GRVL: DNS; <SX FNS; M BRN; M-STRNG P0; MST; WEAK CEMENTATION; HOMO —28— SW 8SW 30 1510 6 6 t — 8 32 30.8-41.5/45' SILT; 57 FN, SA-SR. PRLY GRDD SND; 95% FNS; M DRY STRNGTH; SLW DLTNCY; L-M TGHNSS; L-M PLST; M BRN- RED URN; MOTTLED TO 38.5', N-SL PO; MST: WEAK-MOD 34 CEMENTATION SB 1-35.0' 11 ML 36 1 815 12 13 38 40