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<br /> SECOR SECOR
<br /> Logged By: Date Dulled: Drilling Contractor Project Name: Method/Equipmenr. Well Numb,. Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment, well Number.
<br /> STTC-Ozone Well Install Hollow Stem Auger STTC-Ozone Well Install Hollow Stem Auger
<br /> C.Mclanion 11/3/03 Cascade Drilling Stockton,California CAL Split Spoon OS-48 C.Melanion 11/5/03 Cascade Drilling Stockton,California CAL Split Spoon OS-57
<br /> Boring Surface Groundwater Depth(R.): Total Drive Drop Baling Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(ia): Elev.(ft): $ 9.5 First Water Depth(0): wl.Obs.): Dist(in.): Diam.(in.): Surface $ 9.5 First Water Depth(R): wt.Obs.): D'ut.(in):
<br /> 8 19.5 140 30 8 19.5 140 30
<br /> E �
<br /> gg E
<br /> Well Construction Description p Well a Description e
<br /> + _ m o Cot stivction s a
<br /> 8 m
<br /> .Traffic Rated
<br /> Well Box Traffic Rated
<br /> Well Box
<br /> Grout Grout
<br /> 5 5 FAT CLAY CcH):biack(IOYR 2l1),stiff,moist,high 5 950
<br /> 5 5 FAT CLAY(CH):black(IOYR 2/1),stiff,damp,high 5 5 plasticity,with roots,faint hydrocarbon odor(0,0,100).
<br /> 6 plasticity,faint hydrocarbon odor(0,0,100). 5
<br /> 6
<br /> 10 7 SILT WITH SAND(ML)xlark grayish brown(2.5Y 4/2). 4 1IX10
<br /> 7 fine grained sand,stiff,moist to wet,medium plasticity,
<br /> $ 10 7 ELASTIC SILT WITH SAND(MH):very dark gray(5Y 9 = aint hydrocarbon odor.0 25 75. 0
<br /> 7 3/1),fine grained sand,stiff,moist to wet,moderate 28 OS-48 1410 Bentonite _ FAT CLAY(CH):dark gray(SY 4/1),fine graine sand,
<br /> _ very stiff,moist,high plasticity,faint hydrocarbon odor,
<br /> 9 lastici feint hydrocarbon odor 0 75. 113 (e�10' Chips
<br /> 'Bentonite (0,10,90).
<br /> Chips FAT CLAY(CH):dark greenish gray(10Y 3/1),fine _
<br /> grained sand,very stiff,moist,high plasticity,moderate
<br /> odor,(0,10,90). 15 5 SILT WITH SAND(ML)xlark greenish gray(10Y 3/1), 70
<br /> Sand 5 fine grained sand,stiff,moist to wet,low plasticity, 159 OS-57 1010
<br /> 7 moderate hydrocarbon odor,0 25 75. SPH
<br /> Sand 5 FAT CLAY(CH):dark greenish gray(LOGY 3/1),very 123
<br /> 6 FAT CLAY CH:dark greenish 5GY 3/1 stiff, " T'Sparge 7 stiff,moist,high plasticity,strop h drocarbon odor
<br /> 15 6 moil hi lastic strp hydrocarbon odor 00100. 406 OS-48 1420 "T'F 9 00100. g y 1p
<br /> 8 ELASTIC SILT WITH SAND(MH)odark greenish gray 381 (�15' 6 SILT WITH SAND(ML):dark greenish gray(IOY 4/1),
<br /> TiSparg° 5 (5GY 3/1),fine grained sand,very stiff,moist to wet, 20 8 fine grained sand,stiff,moist to wet,separate phase 5
<br /> p 7 moderate plasticity,strong hydrocarbon odor,(0,25,75). 389 9 droearbons sheen strop hydrocarbon odor, 0 5 75.
<br /> 8 FAT CLAY(CH):dark greenish gray(LOGY 4/1),fine
<br /> 7 ELASTIC SILT(MH)zfark greenish gray(I OY 4/1),fine 'ned sand,_v_ery_stiff moils high�lasticiy j0,10 90�__
<br /> 7 grained sand,very stiff;moist,high plasticity,faint 55 Idirocairbon
<br /> ORLY GRADED SAND WITH SILT(SP-SM)xlark
<br /> y h drocarbon odor,0 10 90. (SY 4/1),fine grained sand,medium dense,wel,faint
<br /> 2p odor, 0 90 10.
<br /> SANDY SILT(ML)xlark greenish gray(10Y 4/1),fine
<br /> 25 ined sand,stiff,moist to wet,low plasticity,moderate
<br /> drocarbon odor,0 25 75.
<br /> FAT CLAY(CH):dark greenish gray(I OGY 411),fine
<br /> Ign ned san0v_ery stiff rroist`high�lasticity,(0,1090)._1
<br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or
<br /> samples obtained during drilling.Predominant material types shown on the log may contain different materials and the change from samples obtained during drilling.Predominant material types shown on the lag may contain different materials and the change from
<br /> one predominant material type to another could be different than indicated.Descriptions on this log apply only at the specific location one predominant material type to another could be different than indicated.Descriptions on this log apply only at the specific location
<br /> at the time of dril ling and may not be representative of subsurface conditions at other locations or times. at the time.of dril ling and may not be representative of subsurface conditions at other locations or times.
<br /> Project No. Date 9/29/04 DWR Log of Well project No. Date 9/29/04 DWR Log Of Well
<br /> OS44-51.GP1 Figure OS-33-57.OP1 Figure,
<br /> LOG OF BOREHOLE LOG OF BOREHOLE
<br /> (sheet I of 1) (sheet 1 of 1)
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