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Marley Cooling Tower Log of Boring 0. TW-1
<br /> DrioMethod: Rotary Sonic Boring Location:Stockton, CA
<br /> Drilling Equipment: Sonic
<br /> Drilling Contractor: Resonant Sonic International Elevation (Ground Surface): TBD
<br /> Sampling Method: Continuous Core Elevation (Top of Casing): 28.45
<br /> Sample Interval NA Depth to First Water(ft.bgs): 59.48 Q
<br /> Borehole Diameter: 6.625 inches Depth to Static Water(ft.bgs): 59.61
<br /> Borehole Total Depth:89 feet Monitoring Well Construction
<br /> Date Started: 5/27/03 Type of Surface Seal: Concrete
<br /> Date Completed: 5/28/03 Blank Casing Type/Size: SCH 40 PVC, 2-in ID Top of Screen(ft.bgs): 60 ft.logs.
<br /> Logged B Tony Mikacich Screen Type/Size: SCH 40 PVC,2-in ID Bottom of Screen(ft.bgs): 85 ft.bgs.
<br /> 99 Y' Screen Slot Size: 0.020 inch Type of Sand Pack: #3
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<br /> Construction tioni Soil Description
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<br /> U1
<br /> 0 Cont. ASPHALT:Asphalt-4"thick, road base material-6"thick, 6 to 8 inch thick
<br /> hand auger ed to 5 tt.logs.to clear utilites. concrete pad
<br /> with traffic
<br /> CL:Sandy Clay,dark brown(10Y R3/3),25%fine sand, rated vault
<br /> 5 Cont. medium plastiaty, medium stiff. /
<br /> SM:Silty Sand,brown(7.5YR4/3), moist,fine sand,25
<br /> silt,loose.
<br /> Cont. ML:Sandy Silt, brown(7.5YR4/3), moist,30%fine sand, /
<br /> 0 -10 stiff,trace black material. /
<br /> ML:Sandy Silt with clay,brown(7.5YR4/4), moist,65%silt,
<br /> 25%very fine sand, 10%clay,stiff,abundant mica.
<br /> 5 -15 Cont. ML:Clayey Silt some sand,brown (7.5YR4/4),moist,slight
<br /> increase in moisture,60%silt,30%clay, 10%fine sand, /
<br /> slight plasticity,stiff,some micas.
<br /> Cont. SM:Silty Sand,brown(7.5YR4/4),moist,dense,trace
<br /> 0 -20 white mineralization,trace black material. Fine gravel ^ 2-inch diameter
<br /> (10%)at 19-20 ft.
<br /> bgs. Schedule 40
<br /> ML:Clayey Silt some sand, brown (7.SYR4/4),60%silt, PVC blank
<br /> 5 -25 Cont.
<br /> 30%clay, 10%fine sand, medium stiff. /
<br /> 1
<br /> 0 -30 Cont.
<br /> At 24 ft.bgs.trace iron oxidation,trace black material.
<br /> At 29 ft.bgs.trace white mineralization,trace black matter.
<br /> Cont. 7
<br /> 5 -35 ML:Clayey Silt some sand, brown (7.5YR4/4),same as /
<br /> above,60%silt,30%clay, 10%sand,medium stiff.
<br /> 0 -40 Cont. As above. , Type II/III
<br /> / Portland Neat
<br /> Cement
<br /> Cont. SM:Silty Sand,brown(7.5YR4/4) moist,70%fine sand, /
<br /> .5 -45 loose,abundant mica.
<br /> Color change to strong brown (7.5YR4/6), moist,some /
<br /> oxidation,fine sand.
<br /> i0 0 No soil Cemented sand/silt stone,dry,very dense/hard,
<br /> recovery approximately 6-inches thick. /
<br /> Project No. 3850244.020101 Log of Boring: TW-1
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