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Advanced QORING LOG <br /> _ate_ GeoEnvironmental, Inc. BOREHOLE NO.: OW-7 <br /> � l 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX:(209)467-1118 TOTAL DEPTH: B Feet <br /> I <br /> Project: FORMER CURTIS PONTIAC-BUICK Drilling Co.: All Well Abandonment <br /> Site Location: 2450 Toste Road Rig/Auger Type: CME-75 LAR/8-inch dia. hollow stem <br /> Tracy, California Logged By: B. Millman <br /> Reviewed By: W. Little <br /> Project No.: AGE-NC-96-0254 Date(s) Drilled: 27 January 2011 <br /> Notes: Boring for well OW-7 completed as a Water Level Before Drilling Page 1 of 1 <br /> 1-inch ozone sparging well. s Water Level After Drilling <br /> Sample Blows PID Soil USCS Class and Well Well <br /> Depth ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> 0 <br /> FL:road base <br /> -5 Cement grout seal <br /> from 0.5 to 7'bsg. <br /> Q i <br /> FL:pea gravel 1 1 <br /> Bentonite seal from 7' <br /> to 11' bsg. <br /> _10— <br /> #2/16 sand from 11'to <br /> 11,15,1716 bsg. <br /> SM:dense to very dense,SILTY SAND,some <br /> interbedded clay and pea gravel <br /> 17,21, <br /> 50(5") <br /> 50 Micron Diffuser <br /> Screen from 12.5'to <br /> -15 14.5'bsg. <br /> s <br /> nn <br />