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HORIZON ENVIRONMENTAL INC. <br /> 4970 Windplay Drive, Suite 5 Boring No. SB-4 <br /> EI Dorado Hills, California 95762 <br /> (916) 939-2170 -- Fax: (916) 939-2172 <br /> Drilling Company: All Well Abandonment Project No.: 1641.01 <br /> Date Drilled: 10/22/14 Site: CST 3641 <br /> Drilling Method: Hollow Stem Auger Location: Stockton, CA <br /> Sampling Method: Split-Spoon Geologist: Rexford Smith <br /> CLC <br /> o a ° Soil Description/ Soil <br /> LL z W 0� a Comments Boring <br /> o C: �, 3 Q) m C: <br /> Q O U N — <br /> � <br /> � c � <br /> a <br /> 0 Asphalt 3 inches/concrete base 4 inches <br /> 1 <br /> 2 SILTY CLAY(CL): dark gray, stiff, slightly moist, no odor <br /> 3 <br /> 4 8-inch diameter <br /> LO 6 bore hole <br /> 5 4 6 5 <br /> °�° 10 18 13 0 6 SILTY SAND (SM): yellowish-brown, very fine to fine-grained <br /> sand, medium dense, slightly moist, no odor <br /> 7 <br /> 8 <br /> neat cement <br /> 0 <br /> 9 9 <br /> 10 4 12 10 <br /> M 15 18 14 Q SAND (SW): light brown, very fine to coarse-grained sand, trace <br /> U) 11 silt, medium dense, slightly moist, no odor <br /> 12 <br /> 13 --------------------------------- <br /> LO 14 <br /> 18 15 SILTY SAND (SM): yellowish-brown,very fine to fine-grained <br /> 15 � 50/5 11 6 - - 16 sand, very dense, slightly moist, no odor <br /> 17 <br /> 18 <br /> 19 <br /> N 25SILTY SAND (SM): yellowish-brown, very fine to fine-grained <br /> 20 m 50/5 11 9 0 20sand, very dense, slightly moist, no odor <br /> cA 21 <br /> 22 <br /> 23 <br /> 24 <br /> 60 SILTY SAND (SM): brown, very fine to fine-grained sand, very <br /> N <br /> 25 4 50/5 11 g 0 25 dense, slightly moist, no odor <br /> M 26 <br /> Cn <br /> 27 Total Depth = 25 feet <br /> 28 <br /> 29 <br /> 3 30 �4 <br /> SB-4: Page 1 of 1 <br />