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Boring Number, B'4 <br /> Job dumber: 1474.11 HORIZON ENVIRONMENTAL INC. <br /> _ <br /> Site Location: Beacon #474, Stockton, CA <br /> Drilling Company: Mitchell Drilling Environmental Drilling Method: Hollow Stem Auger <br /> Drilled By: Scott Sampling Method: Split-Spoon Sampler <br /> Date Drilled: 05/11/86 Total Depth: 45.5 Feet <br /> Logged By: G. Barker Depth To Groundwater: <br /> a_ <br /> C C <br /> v m M g ° <br /> Ln <br /> CIL <br /> LL- Z L) v CL Soil0.2=s Well <br /> C3 c a o d o c Description N ` Construction Comments <br /> ay <br /> E m l a �^ a a <br /> c°n c In U <br /> Asphalt (4'). <br /> i 1 <br /> N/A Boring backfilled with neat <br /> 2 2 cement to surface grade. <br /> 3 3- <br /> 4— 4 <br /> 5 10 5 <br /> 61 20 18 18 1 SILTY CLAY, brown, moderate plasticity, CL <br /> 22 6 dry, stiff. <br /> 7 7 <br /> 8 8 <br /> 9 9 <br /> 1 T 15 10 <br /> 1l1 250 16 16 2 11 CLAY, brown, high plasticity, dry, stiff, <br /> 12 12- <br /> 13— 13 — <br /> 14 14 <br /> 15 `1 jg 18 18 1 15 <br /> N SILT AND CLAY, trace sand, brown to tan, ML <br /> 21 low plasticity, dry. <br /> 16 16- <br /> 17— 17- <br /> 18— 18- <br /> 19- <br /> 819 19 <br /> 0 16 <br /> 20 20 <br /> c3 20 18 18 1 19 very fine— to fine—grained sand stringers. <br /> 21 <br /> 21 21 <br /> 22 22 <br /> — <br /> 23— 23- <br /> 24— 24 <br /> 19 <br /> 25 19 18 18 1 25 light brown and tan, no sand. <br /> ur 23 <br /> 25 26 <br /> 27 27 <br /> . 28 28 <br /> 2929 <br /> brown, moderate to high plasticity, damp. <br /> 30 30 <br /> (Boring Continued On Next Page) Page 1 Of 2 <br />