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BOREHOLE LOG AS-1 <br /> STRATUS Project No.:2007-65-01 Site: USA Station 65 Drilling Company; Westex <br /> 2500 West Lodi Avenue, Lodi,CA Driller: Chris <br /> Date: 5-5-00 Field Geologist: Scott Bittin er <br /> Drilling Rig: B-61 rilling Method: Hollow Stem Auger <br /> Borehole Diameter: 8 Inches Sample E ui ment: Split Spoon <br /> Total Depth: 50 feet Sampler Diameter: 2 inches <br /> Well Completion Data <br /> Slotted Interval: 48-50 feet Casing Material: PVC <br /> Filter Pack Material: Lonestar#3 sand Casing Diameter: 2 inches <br /> Seal Material: Bentonite Slot Size: 0.02 inches <br /> Backfill Material: grout <br /> Sample ID Depth Sample % Blow FID Soil Description: <br /> (ft.) Interval Rec. Count (ppm) Class. <br /> 0-0.5 asphalt surface <br /> AS-1-3 3 3 NIA none 2 ML sample collected from hand auger. Dark brown <br /> silt. Moist fill material.Visible sheen on soil. <br /> AS-1-6.5 6.5 5-6.5 100 517/9 0 ML Medium brown silt with fine sand. No grading. <br /> Soil is moist and soft. No sheen visible. <br /> AS-1-11.5 11.5 10-11.5 100 15/25/27 4 SP Poorly graded, light brown sand. Medium grained. <br /> Slight orange tint. Soil is moist. Medium density, <br /> AS-1-16.5 16.5 15-16.5 100 23/23/27 12 SP Light gray-brown sand. Medium grained. <br /> Medium <br /> dense. Soil is moist. Poorly graded. <br /> AS-1-21 21 20-21 60 20/50(6) 40 SP Light brown-gray sand from 20-20.5 ft. From 20.5 <br /> to 21 ft.,gray silt and clay. Horizon is hard and <br /> ML/CL cohesive, No mottles. <br /> AS-1-26 26 25-26 80 30/50(6) 94 SW 25-25.5 ft. is medium rained gray-brown sand. <br /> Few fines in soil. Core did not recover well. <br /> AS-31.5 31.5 30-31.5 85 27/38/50 75 SP/SW Light brown sand. Some grading present. Sand <br /> is dense and moist. No gleying or mottles. <br /> AS-1-36 36 35-36 100 27150(2) 82 CL/ML Clay and silt, gray. Mottles are present. Soil is <br /> hard and cohesive. <br /> AS-1-40.5 40.5 40-40.5 50 50(6) 66 CL Gray clay. Mottles present. Very hard. Gle in <br /> resent. Moist but not saturated. <br /> AS-1-46.5 46.5 45-46.5 80 8128/30 2 SP Coarse to medium grained sand. Few fines. Water <br /> saturated. Light brown. Medium Density. <br /> Good recovery for wet sand. <br /> AS-1-51 51 50-51 40 27/50(5) 2 SP Coarse sand at very top of recovered core <br /> (50-50.2 ft.) Fine grained sand from 50.2-51 feet. <br /> Light brown. Sand is dense and saturated. <br /> PAGE 1/2 <br /> 5 TR ATUSIE99002.021LOG <br />