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Field Exploratory Boring Log MW-7 (Well MW-7) <br /> OVM Blows/ Sample Well Depth Soil Group <br /> PPM 6" Number Construction (ft) (USCS) Matenals Description <br /> W01box <br /> 0 1h — Well drilled in planter <br /> Clay (CL) <br /> Black(10YR 311), moist,massive, high plasticity, very stiff, <br /> 90% fines, 10% very fine sand <br /> 9 <br /> 15 <br /> 1 1 11 MW-7-6 5 — @ 5' As Above-yellowish brown(10YR 5/4), 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 6 MW-7-10 <br /> 10 <br /> 1 5 33 MW-7-15 15 @ 15' As Above-moderate to high plasticity,caliche,hard, <br /> 38 m _ 90% fines, 10% very fine sand <br /> U <br /> U <br /> N <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 /> 25 rXXa Clay (CL) <br /> , Yellowish brown (10YR 5/4), damp, weak subangular blocky, <br /> 1 10 low to moderate plasticity, caliche, silt hard, 90% fines, <br /> 13 MW 7-25 p y y' <br /> 19 10% %cry fine sand <br /> 30_ Page 1 of 2 <br /> WELL Borehole Diameter 8 inches CAMBRIA <br /> Shell Service Station Logged by ] Gaarder <br /> MW-7 6131 Pacific Avenue Driller Gregg 97374 <br /> I Stockton, California Date Started 17-Sep-97 <br /> Date Completed 18-Sep-97 <br />