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Advanced BORING LOG <br />' GeoEnvironmental, Inc. BOREHOLE NO B-4 (MW-3 <br /> �-JFY• 4005 North Wilson Way, Stockton, CA 95205 <br /> (209)467-1006 FAX (209) 467-1118 TOTAL DEPTH 85' <br />' Project Lodi Airport Date(s) Drilled 22 June 2000 <br /> tProject No AGE-NC-98-0533 Page 2 of 3 <br /> EthSample Blows PID- Sod USCS Class and <br /> ID (per 6") (ppm) Symbol Sod Description <br /> ML Dark brown to brown,silt with sand and fine sand,with white mineralization and <br /> -30— B-4-30' 28/50 1 == black organic matter and trace of clay No HC odor <br /> 1 " <br /> ML Light brown to olive green,damp,silt with fine sand,with black organic matter <br />' <br /> -3-9 <br /> 35 B-4-35' 14/26/50 1 = present No HC odor detected <br /> 1 <br /> ML Same as above <br /> 40 B-4-40' 34/50 1 <br /> CL Brown,damp,silty clay with black organic matter No HC odor <br /> __—= ML Brown,moist,silt with traces of fine sand, iron oxides,and black organic matter No <br />' 45— B-4-45' 28/50 1 — HC odor <br /> I <br />' ML Brown,moist,silt with traces of fine sand,clay,and black organic matter No HC <br /> - <br /> 50— B-4-50' 35/50 0 odor <br /> I <br /> ML Dark brown to brown,moist,clayey silt with abundant iron oxides and black organic <br /> - <br /> 55— <br /> B-4-55' 18/34/50 0 matter,trace of fine sand noted No HC odor <br />' ML Light brown to olive green,silt with sand(10%sand),iron oxides and black organic <br /> - 0 8-4-60' 50 1 matter also present No HC odor <br /> I <br />