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Boring Numbers B`"1 HORIZON ENVIRONMENTAL INC. <br /> Job Number: 1474.11 <br /> Site Location: Beacon #474, Stockton, CA Drilling Method: Hollow Stem Auger <br /> Drilling Company: Mitchell Drilling Environmental Sampling Method: Split—Spoon Sampler <br /> Drilled By: Scott, Chris, & Jeff Total Depth: 46.5 Feet <br /> Date Drilled: 05/08/86 Depth To Groundwater: <br /> Logged By: D. Higgins <br /> m a c o <br /> d C a. o — <br /> -C � i o a` Soil U.9 Q; Well Comments <br /> � La E <br /> v 2 Description v,� a`"i Construction <br /> O C N m O C a N <br /> E c u o U <br /> N 0. <br /> M <br /> 15 CLAYEY SILT, some fine—grained sand, N/A <br /> 31 18 1$ 18 0 31 orange brown, slight plasticity, very <br /> 20 stiff. ML <br /> 32 +n 32 <br /> 33 33 <br /> 34 34 <br /> 35 35 <br /> Ln <br /> Irl 19 <br /> 36 1 20 1$ 18 0 36 gray brawn. <br /> m 20 <br /> 37 37 <br /> 38 38 <br /> 39 39 <br /> 40 40 <br /> 0 <br /> 41 1$ <br /> m 18 18 18 0 41 <br /> 42 N 22 42 <br /> 43 43 <br /> 44 44 <br /> 45 45 <br /> LO <br /> 46 13 <br /> 14 18 18 0 <br /> m 46 <br /> 47 tn 16 47 Total depth = 46.5 feet bgs. <br /> 48 48 <br /> 49 49 <br /> 50 50 <br /> 51 51 <br /> 52 52 <br /> 53 53 <br /> 54 54 <br /> 55 55 <br /> 56 56 <br /> 57 57 <br /> 58 58 <br /> 59 59 <br /> 60 60 <br /> Page 2 Of 2 <br />