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<br /> ARCADES LOG OF BORING NP-1
<br /> GERAGHTY&MILLER (Page 3 of 4)
<br /> ' Unocal Sfte#2859 Date Completed January 8,1999 Drill Rig
<br /> 1665 Pacific Avenue Logged By Reinhard Ruhmke Driller Van
<br /> Stockton,California Checked By Stephen Cullen Diameter 8 25 inches
<br /> Drilling Company Woodward Drilling Backfill Matenal Cement/Bentonite
<br /> 58000076 0003 Drilling Method Hollwv-stem Auger Grout Htodure
<br /> z Well NP-1
<br /> Depth v a PED• = Elev
<br /> In E �� (Ppm) c0i ¢ DESCRIPTION REMARKS
<br /> Feet Lab No i co a � 0
<br /> 50-
<br /> ' 15 127 CLAYEY FINE SAND,some silt, 17*1
<br /> Reddish Brown,molst to wet,soft, simuiprobe-canister
<br /> weak,cementation full
<br /> ® 1.5 84
<br /> ' CLAYEY FINE SAND,some sift,less - -
<br /> clay,Reddish Brown,motst to wet,
<br /> 55 100 0 5 75 fine,weak,cementabon
<br /> ' _ - 1"schedule Sc 40 PV
<br /> 50 1 C
<br /> ® 61
<br /> CLAYEY FINE SAND,some sift,less - -
<br /> 20 clay,-white(CaCQ37)inclusions in - -
<br /> soll,Reddish Brown,moist to wet,
<br /> 50 15 1$ getting softer -
<br /> 50 CLAYEY SAND,fine sand,some silt,
<br /> less clay,trace gravel(less than
<br /> 15 76 25").-white(CaC037)inclusions In Simulprobe-canister
<br /> soil,Reddish Brown,moist to wet, full
<br /> geitutgsoftec----------------
<br /> 18 ®' CLAYEY SILT,Brown with black so 15 CL organic inclusions,moist,moderate Cement/Bentonite
<br /> elasticity Grout
<br /> --------------------------
<br /> 26MSILT,Iess clay,brown with black (5%bentonite
<br /> 1 5 14 organic Inclusions,slightly moist, - powder,45 gal)
<br /> 65- so firm,homogeneous,moderate = _
<br /> 30
<br /> cementation
<br /> so
<br /> ® -
<br /> 1 4
<br /> 25 ML
<br /> ® 1 18 - -
<br /> 50
<br /> ' 70 -
<br /> 1 5 0a SILT,brawn,no wet sod observed, Simulprobe
<br /> ®
<br /> firm,moderate cementation collected about Ice -
<br /> '
<br /> is _ ml very turbid CLAYEY FINE SAND,trace mica water,may be due
<br /> 45 ® 15 8 some sift,brown,slightly moist,soft to leakage from -
<br /> 50 SCwater within auger
<br /> CLAYEY FINE SAND,Increase in sift -
<br /> 40 1 5 content,trace mica,brown,slightly
<br /> y75 moist,soft
<br /> v
<br /> Note
<br /> All measurements
<br /> for well constructs
<br /> are depth below
<br /> ground surface
<br />
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