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Advanced BORING LOG <br /> - � GeciEnvironmental, Inc. BOREHOLE NO MW8 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 281 <br /> Project Manteca City Corporation Yard Date(s) Drilled 19 February 2003 <br /> Project No AGE-NC-99-0637 Page 2 of 2 <br /> DeptFl <br /> Sample Blows PID Sod USCS Class and Well Well <br /> IQ (per 6") (ppm) Symbol Sod Description Completion Description <br /> MW8-20 14/20/25 0 SP Tan,saturated,POORLY GRADED SAND,fineto Screened interval from <br /> medium sand,<5%fines,100%recovery,no HC odor 8'to 28'bsg <br /> CL Gray to brown,saturated,SILTY CLAY, 100% <br /> recovery,medium plasticity and toughness,no HC <br /> odor <br /> 8"Boring diameter <br /> -25 MW8-25 13/15/17 00 2"Casing diameter <br /> CL Dark brown,saturated,SILTY CLAY, 100 /o $ <br /> recovery,medium plasticity and toughness,no HC <br /> Odor <br /> 020 slot size <br /> Cap at 28' <br /> MW8-28 12/17/19 0 CL Dark brown,saturated,SILTY CLAY,66% <br /> recovery,medium plasticity and toughness,no HC <br /> odor <br /> I -30 <br />