Laserfiche WebLink
PARSONS Field Boring Log <br /> Location of Boring/Well: Job No.444534.02000 Client/Site:PG&E Former Tracy MGP Site <br /> Drilling Co./Method Boring/Well No. <br /> Woodward Drilling/Hand Auger/10"Diameter HSA A3-2/TW-5 <br /> Sampling Method <br /> 24"Split-Spoon with 6-inch Stainless Steel Sleeves Sheet <br /> Background Conditions 1 of 2 <br /> Sunny,dry Drillin <br /> Surface Conditions Start Finish <br /> Datum: Asphalt Date Date <br /> 3 Instrument:PID m z Notes:Hand au ered to 5 ft bgs. 07/11/2008 07/11/2008 <br /> a l Time Time <br /> °� o8 B PID background=0.1 ppm. <br /> — 0E _ o <br /> N E _ N 5 08:05 11:40 <br /> N m ¢ m Groundwater encountered at 8.5 ft.b s. <br /> rn m o <br /> 0 Asphalt:0 to 0.33 ft bgs. <br /> Roadbase:0.5 to 1.0 ft bgs. <br /> A3-2-1 1-1.5 08:16 1.1 313 0.2 1 Silty CLAY(CL):black(5YR2.6M);no moisture;70%plastic fines;25%non-plastic fines;stiff;5% <br /> i.,,..:fine gravel;strong TPH odor;stained. <br /> @ 1.75 ft bgs,color change to gray IN 5/on Munsell Color Chart for Gley) <br /> 2 <br /> Q .......:i.....' <br /> ............... <br /> Same as above except:very dark grey(7.5YR 3/1);less clay(60%);more silt(40%),trace mica; <br /> m _�s less odor. <br /> A3-2-3 3-3.5 08:30 = 1.5 1071 0.2 3 Same as above except:dark brawn(7.5YR 3/2);strong odor. <br /> Clayey SILT(ML):yellowish brown(10YR5/4);no moisture;60%plastic fines;40%non-plastic; <br /> 4 Silty CLAY(CL):dusky red(2.5YR 3/2);no moisture;60%plastic fines;40 <br /> non-plastic fines;mottled;moderate staining;moderate hydrocarbon odor. <br /> A3-2-5 5-5.5 08:40 22.4 877 0.4 5 <br /> 3,4,7,7 24 83 Same as above except:70%plastic fines;30%non-plastic fines; white <br /> 6 stringers in matrix. <br /> t 0.4 317 0.1 7 <br /> Same as above except:moderately stiff;strong hydrocarbon odor. <br /> 3,3,3,4 24 100 ' '.Same as above except:greenish gray 5GY5/1;decreasing stiffness with increasing moisture; <br /> S P9 9 Y( ) 9 9 <br /> loosing cohesion. <br /> j —Saturation at 8.5 ft bgs-- <br /> I 9 <br /> 3,3,4,7 24 100 10 :Strong odor(based on PID readings) <br /> A3-2-10 10-10.5 09:13 2152 <br /> A3-2-101) 10.5-11 09:14 <br /> CLAY(CL):yellowish brown(10YR5/6),slightly moist;stiff;60%plastic fines, <br /> 167 1.2 11 30%non-plastic;10%fine sand;no staining;slight odor. <br /> 4,6,13,15 24 7512 <br /> 09:26 790 1.8 <br /> CLAY(CL):yellowish brown(10YR5/6);moist on exterior of sample <br /> ? 13 (groundwater in hole);moderately stiff;85%plastic fines;15%non-plastic;trace <br /> 30 0.3 medium sand;no staining;slight odor. <br /> 5,5,7,14 24 <br /> 265 0.2 14 <br /> ♦ Same as above except:color variations,yellowish brown(10YR5/6)&very pale <br /> A3-2-15 1s-1ss 10:05 IJ50 <br /> 15 brown(10YR7/3);very stiff;no staining;no odor. <br /> 4,4,5,7 24 100 <br /> 16 Clayey SILT with sand(ML):yellowish brown(10YR5/6);moist;70%non-plastic;20%plastic;10% <br /> I no to mo "m <br /> nn' <br /> 'an <br /> b. <br /> )'CLAY(CL):yellowish brown(10YR5/6);moist;stiff;85%plastic fines;15%non- <br /> } 17 plastic;trace medium sand;no staining;no odor. <br /> 4,8,13,16 24 <br /> 18 <br />