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GROUND ZERO ANALYSIS LOG OF BORING SB1
<br /> PROJECT WESTERN BUILDING MATERIALS LOCATION 733 S. VAN BUREH STOCKTON CALIFORNIA PROJECT NO. 210 -- -
<br /> DATE DRILLED 01/14/98 LOGGED BY J. BUCKTHAL REVIEWED BY GREG P. STAHL RG No. 5023
<br /> DRILLING COMPANY FISCH ENVIRONMENT& DRILLER DAVE FISCH METHOD DIRECT PUSH
<br /> BORE HOLE DIAMETER 2 IN DEPTH DRILLED 28 EI DEPTH TO WATER INITIAL _ 17-2 FT STATIC _n
<br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT
<br /> SCREEN TYPE NA DIAMETER _ IN SLOT SIZE IN INTERVAL FL TO FT_
<br /> FILTER PACK TYPE NA INTERVAL FT TO FT
<br /> SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO 2B FT
<br /> COMMENTS: PAGE i OF--!-
<br /> WELL
<br /> F1WELL DEPTH FID i 5 MPLE ID U.S.C. DESCRIPTION
<br /> DETAIL FT. PPM BLOWCOUNT LOG
<br /> 0-2 ASPHALT
<br /> z"-6.5' SILT (ML): <1% FH, PRLY GRDD SND; >99% FNS,
<br /> 2 N-SLW DLTNCY, L-M TGHNSS, SRN, NPO, DRY TO MST
<br /> ML
<br /> 4
<br /> g 6.5-7' 51LTY SANd (SM}: 65-75% FN, PRLY GRDD SND; 25-35%
<br /> SM FNS, BRN, NPO, DRY-MST
<br /> ML 7-8/9, SILT (ML): <5% FN, PRLY GRDD SND; >95%. FNS, SLW
<br /> 8 p DLTNCY, L TGHNSS, BRN, NPO, DRY
<br /> CL 8/9-9.5/10.5' LEAN CLAY (CL): <52 FN, PRLY GRDD SND. >95X FNS,
<br /> N DLTNCY, M TGHNSS, BRN, NPO, DRY
<br /> 10 ��
<br /> ML 9.5/10.5-12' SILT (ML): <5% FN, PRLY GRDD SND; >95% FNS, N-SLW
<br /> DLTNCY, L TGHNSS, BRN, NPO, WET
<br /> 12 0
<br /> NO 12-14' NO RECOVERY
<br /> RECOVERY
<br /> 14 14-16' LEAN CLAY (CL): <57 FN, PRLY GRDD SND; >95X FNS, N
<br /> Sal-15'0CL DLTNCY, M-H TGHNSS, BRN. NPO, DRY
<br /> 1 fi 0 16-16.8' WELL 60% FN-CRS,CRS, W GR DADED SAND IT ND; 20A 25% FNND ,,ESA( S
<br /> R, PRLY GRDD
<br /> SW-SM GRVL; 25-30% FNS, BRN, NPO, DRY
<br /> SM 16.8-17.5/1$.5' SILTY SAND (SM): 65-752 FN, PRLY GRDD SND; 25-35%
<br /> FNS, BRN, NPO, DRY
<br /> 17.5/18.5-24.5/25.5' SILT (ML): <5% FN, PRLY GRDD SND; >95% FNS, SLW
<br /> ZO 0 POOR RECOVERY TGHNSS, BRN, NPO, DRY TO WET,
<br /> 22 ML
<br /> 24 1 $81-24'
<br /> 24.5/25.5-26/27- LEAN CLAY (CL): <5% FN, PRLY GRDD SND; >95% FNS,
<br /> CL N DLTNCY, L-M TGHNSS, BRN, NPO, WET
<br /> 2fi _
<br /> 1 26/27-28' SILT (ML): <5% FN, PRLY GRDD SNO, >95$ FNS, SLW
<br /> 28
<br /> ML DLTNCY, L-M TGHNSS, BRN, NPO, WET
<br /> 0 SB 1--28'
<br /> 30
<br /> lav-D
<br /> 32
<br /> Ln
<br /> GREGORY P.
<br /> 34 STAHL
<br /> ' No. 5023
<br /> F CAOti
<br /> 38 '~•
<br /> 40
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