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Advanced BORING LOG <br /> GeoEnvironmental Inc. <br /> � BOREHOLE NO EW-4 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209) 467-1118 TOTAL DEPTH 35 112t <br /> Project FLAG CITY CHEVRON Drilling Co WEST HAZ MAT DRILLING <br /> Site Location 6421 CAPITOL AVENUE Rig/Auger Type B-85112-INCH H S <br /> LODI Logged By T CUELLAR <br /> CALIFORNIA <br /> Reviewed By N HENDERSON <br /> Project No AGE-NC-96-0232 Date(s) Drilled 10/09/00 <br /> Notes Total depth of EW-4 equal to 35 112 feet bsg,boring s Water level during drilling Page 1 of 1 <br /> completed as 4-inch diameter ground water extraction well -,w Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID 1 ft (ppm) Symbol Soil Description Completion Description <br /> 0 <br /> Well cover,water- <br /> tight,locking cap <br /> —5 Cement grout seal from 1' <br /> No Samples to 5 112'bsg <br /> Bentonite seal from 5 1/2' <br /> to 8' bsg <br /> —10 <br /> No Samples <br /> —15 _ - No Samples #3 sand from 8'to 35'bsg <br /> —20 <br /> No Samples Screened interval from 10' <br /> to 35'bsg <br /> —25 <br /> No Samples <br /> —30 _ _ No Sam les <br /> —35 <br /> - - - No Sam les Well plug at 35 112' <br />