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GROUND ZERO ANALYSIS LOG OF BORING HFS—SB1 <br /> PROJECT HALEY FLYING SERVICE LOCATION TRACY, CA PROJECT NO. <br /> 795 <br /> DATE DRILLED 05107199 LOGGED BY SEAN GARVEY REVIEWED BY JOHN P. LANE REG No. 6795 <br /> DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER FLINT METHOD DIRECT PUSH <br /> BORE HOLE DIAMETER 2 IN DEPTH DRILLED 22 FL DEPTH TO WATER : INITIAL 10 FT STATIC 7 FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT <br /> SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL u TO FT <br /> FILTER PACK TYPE NA INTERVAL FT TO FT <br /> SURFACE SEAL TYPE NEAT CEMENT GROUT INTERVAL 0 L TO22FT <br /> PAGE I OF--L- <br /> COMMENTS: <br /> F 1COMMENTS: <br /> WELL DEPTH FID SAMPLE 10 U.S.C. DESCRIPTION <br /> DETAIL FT. PPM BLOWCOUNT LOG <br /> 0-10' LEAN CLAY WITH SAND (CL): 25% FN, SA SND; 7S% FNS, SLW DLTNCY. <br /> L—M TGHNSS, M PLST, BRN, NPO, MST, PYRITE <br /> 2 <br /> 4 CL <br /> 2 <br /> 6 <br /> S <br /> HFS—S81-1 ' <br /> 10 10 <br /> 10-15' POORLY GRADED SAND WITH CLAY (SP—SC): 90% FN. SA SNO; 10% <br /> FNS, SRN, SL P0, WET <br /> —12— <br /> SP—SC <br /> 14 <br /> 2 HFS—SBI-15' 15-17/20' ELASTIC SILT (ML): <5% SND; >95% FNS, N—SLW DLTNCY, L TGHNSS, <br /> L PLST, BRN, NPO, MST <br /> 16 <br /> MH <br /> 17/20-22' LEAN CLAY (CL): <5% SND; >957 FNS. M—H DRY STRNGTH, N—SLW <br /> 115DLTNCY, H TGHNSS. M—H PLST. BRN, NPO, MST <br /> 20 <br /> HFS—SBI-20' <br /> 2 <br /> CL <br /> 22 <br /> 24 �g'`��ED GQ"O <br /> 26 JOHN <br /> SPY:= • <br /> ze cn, <br /> No. 6795 <br /> —30- <br /> 32- <br /> -34- <br /> -36- <br /> -38- <br /> -40-- <br />