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BOREHOLE LOG MW-14 STRATUS Project No.:2007-65-01 Site: USA Station 65 Drilling Company: Westex 2500 West Lodi Avenue,Lodi,CA Driller: Chris Date: 5-4-00 Field Geologist: Scott Bittin er Drilling Rig; B-61 Drilling Method: Hollow Stem Auger Borehole Diameter: 8 Inches Sample Equipment: S lit Spoon Total Depth: 50 feet Sampler Diameter: 2 inches Well Completion Data Slotted Interval: 30-50 feet Casing Material: PVC Filter Pack Material: Lonestar#3 sand Casing Diameter: 2 inches Seal Material: Bentonite Slot Size: 0.02 inches Backfill Material: grout Sample ID Depth Sample % Blow FID Soil Description: (ft.) Interval Rec. Count (ppm) Class. 0-0.5 Asphalt surface 0.5-5 Engineered fill from asphalt to 3-4 ft. MW-10-6.5 6.5 5-6.5 90 4/7/12 0 SP Light brown medium to coarse grained sand. MW-10-11.5 11.5 10-11.5 100 6/11/13 0 SP Light brown medium to coarse grained sand. MW-10-16.5 16.5 15-16.5 100 23/25/30 0 SW Light brown-orange fine and medium grained sand. MW-10-21.5 21.5 20-21.5 100 ?/27/50 0 SM 20-21 ft. silty sand, light brown MH 21-21.5 ft. silt and clay, light brown MW-10-26.5 26.5 25-26.5 100 17/21/24 4 SM Light brown sand and silt with orange iron oxide tint. Some grading present. Sands are all fine rained. Soil is moist and dense. MW-10-31.5 31.5 30-31.5 100 16/15/22 0 SM Orange-light brown sand with silt. Some grading resent. Medium dense,moist. MW-10-35.5 35.5 35-35.5 30 50 (6) 0 ML Silt and clay with some fine sand. Li ht brown. Hard,cohesive and moist. Groundwater at 40.23 ft. MW-10-40.5 40.5 40-41.5 100 24/28/50 0 SP Poorly sorted sand 40-41 ft. Light brown with mottles. Sand is medium to fine gained. Soil is wet. ML41-41.5 ft. silt and clay. Light gray-brown with mottles. MW-10-46.5 46.5 45-46.5 100 9/15133 0 ML Light brown silt with fine sand. Medium stiff. Mottling resent. Soil is wet. MW-10-51 51 50-51 65 26/50 2 ML/CL Gray silt with clay and<5%fine sand. Soil is hard and cohesive. PAGE 1/2 S TRATU S1E99002.02(LGG