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... Mmff LOG of BORING 5B1 PROJECT HEALY PROPERTY LOCATION 9172 THORNTON ROAD, STOCKTON CA PROJECT NO. W0628 DATE DRILLED 01/07/93 LOGGED BY LOIS FRANTZ REVIEWED BY GREG STAHL RG No. 5023 DRILLING COMPANY SPECTRUM EXPLORATION DRILLER JOEL STAPELTON/VAN LEONARD METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER A IN DEPTH DRILLED 35 PT DEPTH TO WATER ; INITIAL NA FT STATIC FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL -- T TO FT FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NA INTERVAL -- FL TO FT COMMENTS: BORING ABANDONED WITH NEAT CEMENT PAGE L OF WELL DEPTH PID SAMPLE ID U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-16.5/20' WELL GRADED SAND TO WELL GRADED SAND WITH SILT; 85-95% 2 FN-M, SA-SR, W GRDD SND; M DNS; 5-15% FNS; M YLLW BRN; NPO; MST; W-STRNG HCL REACTION; WEAK CEMENTATION; HOMO 4 SB 1-6.0' 8 g 0.1 5 9 8 SW —10- 9 0 12 14 -12- -14- 7 7 16 0 8 9 1$ 16.5/20-31.2' SILT TO SILT WITH SAND; 5-20% FN, SA-SR, PRLY GRDD SND: 80-95% FNS: L-M DRY STRNGTH; SLW-R DLTNCY; L TGHNSS; L PLST; STIFF-V STIFF; M YLLW BRN-GRY BRN; NPO; MST; N HCL 5B1-20.5' REACTION: WEAK CEMENTATION; HOMO 20 5 0 14 19 \�`�REO GEp�O zz 24 GREGORY P. S131-25.5' ML STAHL 4 i` N0. 5023 26 0 7 8 28 TF OF CAU. 30 581-30.5' fi 0 12 31.2-31.5/35' LEAN CLAY; <5% FN, SA-SR, PRLY GRDD SND; >95% FNS; M 27 DRY STRNGTH; N-SLW DLTNCY; M TGHNSS; L-M PLST; V STIFF; 32 CL M BRN; NPO; MST: N HCL REACTION; WEAK CEMENTATION; HOMO 34 31.5/35-36.5' WELL GRADED SAND; >95% FN-CRS, SA-SR, W GRDD SND; V DNS; <5% FNS; M YLLW BRN; NPO; MST; N HCL REACTION; SBI-35.5' WEAK CEMENTATION; HOMO 15 SW 36 0 30 32 38- 40