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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 11/3/03 Cascade Drilling Stockton,California CAL Split Spoon OS-24
<br /> Boring Surface Groundwater Depth(11): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): SL 9.75 First Water Depth(ft.): wt.(Ibs.): Dist.(in.):
<br /> 8 19.5 140 30
<br /> O o a 9 E
<br /> Well y z i-
<br /> x 3 Description A
<br /> Construction
<br /> Cn
<br /> F: U n
<br /> Traffic Rated
<br /> Well Box
<br /> v; °;
<br /> Grout
<br /> 5 5 FAT CLAY(CH):dark grayish brown(IOYR 4/2),stiff,
<br /> 5 moist,high plasticity,(0,0,100). 11 OS-24 940
<br /> 7 @5
<br /> b:
<br /> 10 5 FAT CLAY(CH):dark greenish gray(10Y 4/1),fine
<br /> 5 grained sand,very stiff,moist with water filled roatholg, 4
<br /> 7 hi h plasticity,strop hydrocarbon odor, 0 10 70 20 . 24
<br /> SANDY SILT(ML):dark greenish gray(IOY 4/1),fine
<br /> Bentonite grained sand,stiff,moist to wet,faint hydrocarbon odor,
<br /> Chips 0 30 70 .
<br /> FAT CLAY(CH):dark greenish gray(10Y 4/1),fine
<br /> grained sand,very stiff,moist with water filled roatholg,
<br /> high plasticity,strong hydrocarbon odor,(0,10,90).
<br /> 15 5 ————— ———— ——— -- --
<br /> Sand 6 SANDY SILT(ML):dark greenish gray(5GY 4/1),fine 313 OS-24 1000
<br /> 6 grained sand,stiff,moist,medium plasticity,strong @15'
<br /> 5 hydrocarbon odor,(0,30,70). 370
<br /> 2" Sparge 6
<br /> Tip7 ————————— —————— -- -----
<br /> 7 FAT CLAY(CH):dark greenish gray(5GY 4/1),very 90
<br /> 7 stiff moist,high plasticity,strong hydrocarbon odor,
<br /> RWO,0,100). 55
<br /> 20 9 Erocarbon
<br /> LTY SAND(SM):dark greenish gray(5GY 4/1),fine
<br /> ned sand,medium dense,moist to wet,moderate
<br /> odor, 0 60 40 .
<br /> FAT CLAY(CH):dark greenish gray(5GY 4/1),fine
<br /> grained sand,very stiff,moist,high plasticity,moderate
<br /> Inydrocarbon odor, 0 10 60 30 .
<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 1-33.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet I of 1)
<br />
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