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Field Exploratory Boring Log MW-7 (Well MW-7) <br /> M Blows/ Sample Well Depth Soil Group Materials Description <br /> M 6" Number Construction (ft) (USCS) <br /> W ellbox <br /> o i a — Well drilled in planter <br /> Clay(CL) <br /> Black(10YR 311),moist,massive,high plasticity, very stiff, <br /> 9017o fines, 10% very fine sand <br /> 9 <br /> 15 <br /> 1 1 11 MW-7-6 5 — @ 5' As Above-yellowish brown (10YR 514), damp,moderate <br /> _ subangular blocky, moderate plasticity, silty, 85%fines, <br /> 15%very fine sand <br /> @ 10' As Above-stiff <br /> 3 10— <br /> 15 6MW-7-10 <br /> 10 <br /> 1 5 18 15 — @ 15' As Above-moderate to high plasticity,caliche, hard, <br /> 33 MW 7-15 y <br /> 38 m 90% fines, 10% very fine sand <br /> U — <br /> .. 0. <br /> E _ <br /> U <br /> c <br /> Silty Sand(SM) <br /> 13 20 Dark yellowish brown(10YR 4/4), damp,weak subangular <br /> 35 26 MW-7 20 blocky,low plasticity, very dense, 55% very fine sand, <br /> 30 — 45%fines <br /> Clay (CL) <br /> 25 — Yellowish brown(10YR 514), damp,weak subangular blocky, <br /> MW-7-25 <br /> 7 1 10 low to moderate plasticity,caliche, silty,hard, 90% fines, <br /> 13 <br /> 19 10% very fine sand <br /> 30— Page I of 2 <br /> WELL Borehole Diameter 8 inches CAMBRA <br /> Shell Service Station Logged by J Gaarder <br /> M`�T�� 6131 Pacific Avenue Driller Gregg 97374 <br /> �'!` Stockton, California Date Started 17-Sep-97 <br /> Date Completed 18-Sep-97 <br />