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Advanced BORING LOG <br /> GeoEnvironmental, Inc. <br /> BOREHOLE NO. : B4 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209) 467"1006 FAX: (209) 467-1118TOTAL DEPTH : j50 ' <br /> Project: Stallworth Auto Sales Date(s) Drilled: 18 January 2006 <br /> Project No. : AGE-NC- 99-0682 Page 2 of 4 <br /> Depth Sample Blows PID Soil USCS Class and <br /> ID per 6") (ppm) Symbol Soil Description <br /> - 40— <br /> . 45— NO SAMPLE: No samples collected <br /> - 50— 7/10/12 CL: Brown, moist, SILTY CLAY, moderate consistency, low plasticity and toughness, <br /> hydrocarbon (HC) odor. <br /> - 55 B4-55 6/6/6 CL: Brown, saturated, SILTY CLAY, moderate to high consistency, low to moderate <br /> plasticity and toughness, HC odor. <br /> - 60 CL: Brown to gray brown, saturated, SILTY CLAY, moderate to high consistency, low to <br /> B4-60 19/20/25 moderate plasticity and toughness, HC staining and odor. <br /> . 65- <br /> 134-65 5/7/9 =_— CL: Gray, saturated, SILTY CLAY, 20-25% silt, low consistency, low plasticity and <br /> _ toughness, HC staining and odor. <br /> SM: Gray, saturated, SAND, 10% silt, 15% fine sand, 75% medium sand, HC staining <br /> and odor. <br /> - 70 SP: Gray, saturated, SAND, <5% silt, 15% fine sand, trace gravel, 75% medium sand,. HC <br /> 134-70 5/7/9 staining and odor. <br /> _ 75 — B4-75 12/18/18 SP: Gray, very moist, SAND, <5% silt and clay, 45% coarse sand, 35% medium sand, <br /> 10% fine sand, HC staining and odor. <br />