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t • • 16BUILDING LOG OF BORING B5 ' ANALYTICS Building/Environmental Evaluations (Page 3 of 3) Wells Fargo Bank Properties Date Started :8-26-9818-26-98 Total Depth :80 feet 49 South Wilson Way Drilling Company :Gregg Drilling Depth to Groundwater :50 feet Stockton,California Hole Diameter :8 inches Elevation :20 feet Phase II Subsurface Investigation Drilling Method :Hollow-Stem Auger logged By ;Russell Cote Project#198075 Sampling Method :2 inch Split Spoon Reviewed By :J.Montoya,R.G,R.E.G- G Depth = O in a � DESCRIPTION E � PID REMARKS feet CU9 j to tab No. m (Ppm) 60- 39 ML Very fine sandy SILT,brown(iOYR 513),moist,stiff to 85-61 50 10 Very slight petroleum hydrocarbon hard. odor,no discoloration. 50%sample 65-62.5 50 12 recovery. Very fine SAND,brown(i OYR 513),moist to wet,loose. Very slight petroleum hydrocarbon 1 odor,no discoloration. 50%sample SP 85-64 5o 8 recovery. same. Very slight petroleum hydrocarbon Clay SILT with trace sand,brown (1 OYR 513),moist, odor,no discoloration. 50%sample 65 hard. 85-65 50 2 recovery. 50%sample recovery. 17 50 NR No sample. Slough in sample. SILT with some sand,brown (1 OYR 513),moist,hard. 55-68 s0 a Very slight petroleum hydrocarbon 50 odor,no discoloration. 50 70 same;some fine sand,moist. B5-70 50 10 Slight petroleum hydrocarbon odor,no ' 27 discoloration. 50%sample recovery. Fine sandy SILT,brown(10YR 513),wet,stiff. 85-71 50 3 No discoloration or odors. 50%sample 31 recovery. ML SILT with some clay,brown(1 OYR 513),dry,hard. 85-73 so 0 No discoloration or odors. x 50 NR 75 same. 50 No discoloration or odors. 10%sample 1 recovery. same, moist- 85-76 50 0 No discoloration or odors. 100% sample recovery. same.moist. 13Er78 50 0 No discoloration or odors. 50 so same s0 NR No discoloration or odors. 10%sample recovery. i 80 � u s 0 U O Z m 85- W 2 W W U v 04 0