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Advanced BORING LOG <br /> GeoEnvironmental Inc. <br /> BOREHOLE NO MW-11B <br /> 4005 North Wilson Way, Stockton, CA 95205 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 45 FEET <br /> Project WEST CLAY PROPERTIES Drilling Co Mitchell Drilling Environmental <br /> Site Location 639 West Clay Street Rig/Auger Type CME 75 HT <br />' Stockton, California Logged By Paul Dotson <br /> Reviewed By Nuel Henderson <br />' Project No AGE-NC-96-0235 Date(s) Drilled 25 July 2000 <br /> Notes Total depth of boring 45'below surface grade Bornig = Water level during drilling Page 1 of 1 <br /> completed as 2-mch diameter ground water monitoring well �r Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br />' ID f (per 6") (ppm) Symbol Soil Description Completion Description <br /> 0Ll Well cover ensty box <br />' No sample recovery from 5'to 30'bsg <br /> -10 <br /> -1 <br /> 1 <br />' 20- <br /> - <br /> 0 Cement grout seal from <br /> 5'to 36'bsg <br />' -25 <br /> -30 <br />' CL CLAY,approximately 5%sand,blue-gray, <br /> -35— saturated,very stiff to hard petroleum hydrocarbon <br /> I MW11B-35 13!20125 - (J-1C)odor <br /> Bentonite seal from 36' <br /> to 38' bsg <br /> CL CLAY,blue-gray,saturated,hard,FIC odor <br /> 43/12 sand from 38'to <br /> - <br /> 40— M W 1 1 B-40 18/20/23 45'bsg <br /> Screened interval from <br /> 40'to 45'bsg <br /> CL SILTY CLAY blue-gray,saturated,very stiff,HC <br /> -45 odor <br /> MW11B-45 16/10/21 - Cap at 45' <br />