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' Advanced <br /> � BORING LOG <br />' GeoEnvironmental, Inc. <br /> BOREHOLE NO MW-4 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-111$ TOTAL DEPTH 200 FEET <br /> IProject FERNANDO'S PLACE Date(s) Drilled 26 August 2002 <br /> Project No AGE-NC-00-0769 Page 4 of 9 <br />' <br /> Depth Sample Blows PID Sod USCS Class and Well Well <br /> p IDtiler 61 (ppm) Symbol Sod Description S Completion Description <br /> p <br />' ML Grads to SILT low toughness,low plasticity, <br /> Grades p ty, <br /> -75— <br /> 75 approximately 10-15%fine sand,nvcaceous,saturated, <br />' HC odor <br /> No recovery 75 to 77 feet bsg <br />' _= SM SILTY SAND,fine sand,approximately 25% <br /> fines,saturated,HC odor <br /> MW4-78 83 -- <br /> -80 — — — <br /> SM/ML Grades downward to SILTY SAND,SANDY <br /> SILT <br />' ML SILT,approximately 15%fine sand,saturated,HC <br /> -85— odor <br /> Bentonite seal from 40 <br /> No recovery 85 to 88 feet bsg to 113 ft <br />' MW4-88 20 SP POORLY GRADED SAND with SILT,fine sand, <br /> approximately 10%fines(approximately 20%fines at <br /> 95 feet bsg),saturated,HC odor <br /> -90 -- <br /> SM SILTY SAND,fine sand,approximately 30% <br /> fines,saturated,HC odor <br /> 1 <br /> ML Grades to SILT,low toughness,low plasticity, <br />' approximately 15%fine sand,nucaceous,saturated, <br /> HC odor <br />' 95 <br /> No recovery 95 to 96 5 feet bsg <br />' SP-SM SILTY SAND grades to POORLY GRADED <br /> SAND,fine sand,saturated,HC odor <br />