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BUILDING LOG OF BORING B5
<br /> ' ANALYTICS
<br /> 1Building/Environmental Evaluations (Page 2 of 3)
<br /> Wells Fargo Bank Properties Date Started :8-26-9818-26-98 Total Depth :80 feet
<br /> 49 South Wilson Way Drilling Company :Gregg Drilling Depth to Groundwater :50 feet
<br /> Stockton,Califomia Hole Diameter :8 inches Elevation :20 feet
<br /> Phase IE Subsurface Investigation Drilling Method :Hollow-Stem Auger Logged By :Russell Cote
<br /> Project#198075 Sampling Method :2 inch Split Spoon Revievued By :J.Montoya,R-G,R.E.G.
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<br /> c
<br /> Depth
<br /> in DESCRIPTION CL " REMARKS
<br /> feet < U E o PID
<br /> a D n Lab No . m (ppm)
<br /> same. Fine to coarse SAND. 55-31 29 0 No discoloration or odors. 100%
<br /> 37 sample recovery.
<br /> X. x B5-32.5 31 0 No discoloration,petroleum
<br /> 50 hydrocarbon odor. 100%sample
<br /> SP same. 17 recovery.
<br /> No discoloration,slight petroleum
<br /> Fine to Coarse SANT],gray(NS),very wet,very loose. 135-34 2S 100 hydrocarbon odor. 80%sample
<br /> 19 recovery.
<br /> 35 B5-35 40 500
<br /> Fine SAND with some silt,gray(NS),wet,loose. x 9 Strong petroleum hydrocarbon odor,no
<br /> discoloration.
<br /> SILT with some fine sand,brown(10YR 513),moist,stiff. 85-37 250 208 Slight gasoline-like odor,no
<br /> 7 discoloration. 60%sample recovery.
<br /> 135-38 10 70
<br /> Clayey SILT,brown(10YR 5/3)with some gray(NS) x 9 No discoloration or odors.
<br /> mottling,very wet,soft. B5-40 21 20
<br /> 40 100%sample recovery.
<br /> Clayey SILT,brown(10YR 513),wet,soft. x 35
<br /> Clayey SILT,brown(10YR 5/3)with some gray(NS) B5-41.5 21 12
<br /> mottling, moist,hard. 50
<br /> 14
<br /> Clayey SILT,gray(NS),slightly moist,stiff to hard. 135-43 x 30 b0 90 Slight to moderate petroleum
<br /> hydrocarbon odor,no discoloration.
<br /> SILT,gray(NS),with trace clay,moist,stiff. BS-45 32 75 Slight petroleum hydrocarbon odor,no
<br /> 45 -
<br /> ML 50 discoloration.
<br /> same. 135-46 22 95 100%sample recovery.
<br /> 50
<br /> same; no clay,dry,hard. 135-47.5 32 50 Slight petroleum hydrocarbon odor,no
<br /> 50 discoloration. 80%sample recovery.
<br /> same; slightly moist. 2090 Slight petroleum hydrocarbon odor,no
<br /> 85 49 30 37 discoloration.100%sample recovery.
<br /> 9 50 same. 135-50 20 105 Slight to moderate petroleum
<br /> j '
<br /> 5a hydrocarbon odor,no discoloration,
<br /> 50%sample recovery. Ground water
<br /> 33 x 65-52 100 at 50 feet.
<br /> 0 50
<br /> o34
<br /> •: SM Sandy SILT,gray(NS),moist to wet,stiff to hard. 65-53.5 5q 70 Moderate petroleum hydrocarbon odor,
<br /> no discoloration. 100%sample
<br /> i 31
<br /> W recovery.
<br /> m 55 SILT,gray(NS),moist,hard. 65-55 50 30 Slight petroleum hydrocarbon odor,no
<br /> discoloration. 60%sample recovery.
<br /> 38
<br /> w 65-56 48
<br /> '- 50
<br /> v ML same;with some silt, brown(10YR 5/3)- Slight petroleum hydrocarbon odor,no
<br /> discoloration. 60%sample recovery.
<br /> W same; slightly moist. B5-58 50 30 50%sample recovery-
<br /> ao
<br /> same;increase in clay. B5-60 50 26 50%sample recovery.
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