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LOG OF BORING No. MW-1 <br /> a ' Z yw + F DATE DRILLED: 524M ELEVATION: <br /> m o EQUIPMENT: CME 75 r <br /> • None NIA N1A NIA NIA <br /> Colk)Ctsd 12"conductor casing to 34'bgs <br /> Cement/Bentonite grout <br /> 5 _ Silty Clay(Cla,mod yeAowish brown,(IOYR 514),damp <br /> -moist, moderate plastldty,sttff,,no HC odor <br /> F- <br /> 10 To Clayey Sin(ML),mod yellowish brown.(IOYR 514), <br /> 2 c damp,moist,stiff,low plasticity <br /> i <br /> °a To Silty Clay(CL).mod yellowish brown(IOYR 514), <br /> mmoist to very moist,firm,moderately plastic,no HC odor <br /> 15 <br /> � 4"ilia.blank PVC casing <br /> cc cc <br /> 20 @ 20'Silty Clay(CL),dark yellowish brown(IOYR) <br /> very moist,modrateiy plastic,no HC odor <br /> • Bentonite seal <br /> 25 ; + Hydrated Bentonite chips <br /> @ 27-112'Silty Clay,n0 fine sand,olive gray(51312),very <br /> moist,no HC odor <br /> (Casing"floated"during grout placement.Water placed <br /> Msw 30 Inside oonductor casing to weight it down Water pumped <br /> &bolled prior to drilling further) <br /> IA <br /> 4 <br /> O <br /> 35 2a o w slot PVC casing-flush ttfeaded <br /> #3 Lapis Uistre Sand Pack <br /> o � <br /> g <br /> L <br /> CL Q <br /> THIS SUMMARY APPLIES ONLY AT THE LOCATION OF T14 BORINC3 AND AT THE TIME OF DRILLING. SUBSURFACE CONDITIONS MAY DIFFER AT OTHER LOCATIONS AND <br /> MAY CHANGE AT THIS LOCATION WITH THE PASSAGE OF TIME.THE DATA PRESENTED IS A SIMPLIFICATION OF ACTUAL CONDITIONS ENCOUNTERED <br /> PROJECT NO <br /> MrTHE PRELIMINARY CLOSURE REPORT 93-1177102 30 <br /> .' MARK STOCKTON SCAVENGERS ASSOCIATION DRAWING No <br /> GROUP,INC. STOCKTON, CALIFORNIA A-7 <br /> ENGINEERS & GEOLOGISTS <br /> Page 1 <br />