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<br /> S ECOR
<br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number:
<br /> STTC-Ozone Well Install Hollow Stem Auger
<br /> C.Melanion 11/5/03 Cascade Drilling Stockton,California CAL Split Spoon OS-57
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): 9.5 First Water Depth(ft.): wt.0bs.): Dist.(in.):
<br /> 8 19.5 140 30
<br /> tu
<br /> v
<br /> Well
<br /> r 0 z
<br /> 1:43 Description o 0
<br /> Construction a? ° a. a
<br /> a
<br /> Traffic Rated
<br /> Well Box
<br /> e•. e'
<br /> Grout
<br /> 5 5 FAT CLAY(CH):black(10YR 2/1),stiff,moist,high
<br /> 5 plasticity,with roots,faint hydrocarbon odor(0,0,100). 5 950
<br /> a`. 5
<br /> t
<br /> 10 7 SILT WITH SAND(ML):dark grayish brown(2.5Y 4/2), 4 1000
<br /> 7 — fine grained sand,stiff,moist to wet,medium plasticity,
<br /> 9 — faint hydrocarbon odor, 0 25 75 . 0
<br /> BentoFAT CLAY(CH):dark gray(5Y 4/1),fine grained sand,
<br /> Chips ite — very stiff,moist,high plasticity,faint hydrocarbon odor,
<br /> Chips — (0,10,90).
<br /> 15 5 SILT WITH SAND(ML):dark greenish gray(10Y 3/1), 70
<br /> Sand 5 fine grained sand,stiff,moist to wet,low plasticity, If- 159 OS-57 1010
<br /> 7 oderate hydrocarbon odor,(0,25 75 . SPH @ 15
<br /> 5 FAT CLAY(CH):dark greenish gray(LOGY 3/1),very 123
<br /> 2" Sparge 7 stiff,moist,high plasticity,strong hydrocarbon odor 25
<br /> Tip 9 0 0 100 . 10
<br /> 6 SILT WITH SAND(ML):dark greenish gray(10Y 4/1), 5
<br /> 20 8 fine grained sand,stiff,moist to wet,separate phase
<br /> 9 ydrocarbons sheen strong hydrocarbon odor, 0 25 75 .
<br /> FAT CLAY(CH):dark greenish gray(IOGY 4/1),fine
<br /> igrained sand,very stiff moil high�lasticity,CO,10 . _J
<br /> POORLY GRADED SAND WITH SILT(SP-SM)Aark
<br /> gray(5Y 4/1),fine grained sand,medium dense,wet,faint
<br /> drocarbon odor, 0 90 10 .
<br /> �ydrocarbon
<br /> ANDY SILT(ML):dark greenish gray(l0Y 4/1),fine
<br /> 25 rained sand,stiff,moist to wet,low plasticity,moderate
<br /> odor, 0 25 75 .
<br /> IFAT CLAY(CH):dark greenish gray(10GY 4/1),fine
<br /> Igrained sand very stiff,moist,hgh p agicit 10
<br /> 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
<br /> 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 drilling and may not be representative of subsurface conditions at other locations or times.
<br /> Project No. Date 9/29/04 DWR Log of Well
<br /> OS-33-57.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet 1 of 1)
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